WO2001087380A1 - Pulsed vacuum cataract removal system - Google Patents

Pulsed vacuum cataract removal system Download PDF

Info

Publication number
WO2001087380A1
WO2001087380A1 PCT/US2001/003286 US0103286W WO0187380A1 WO 2001087380 A1 WO2001087380 A1 WO 2001087380A1 US 0103286 W US0103286 W US 0103286W WO 0187380 A1 WO0187380 A1 WO 0187380A1
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
cutter
vacuum
aspiration
handpiece
Prior art date
Application number
PCT/US2001/003286
Other languages
French (fr)
Inventor
Rod Ross
Original Assignee
Med-Logics, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Med-Logics, Inc. filed Critical Med-Logics, Inc.
Priority to AU2001234726A priority Critical patent/AU2001234726A1/en
Publication of WO2001087380A1 publication Critical patent/WO2001087380A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/75—Intermittent or pulsating suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems

Definitions

  • the present invention relates to a system for removing tissue from the human body.
  • Tissue including cataract lenses
  • an ultrasonically driven handpiece For example, in a cataract procedure, it is commonly referred to as phacoemulsification.
  • a phaco handpiece includes a tip that is inserted through an incision formed in the cornea. The tip is oscillated by a driver unit at an ultrasonic frequency. The oscillating tip breaks and emulsifies the lens.
  • the tip is coupled to an irrigation system that introduces irrigation fluid into the anterior chamber of the eye.
  • the irrigation fluid cools the tip and maintains the ocular pressure of the anterior chamber.
  • the irrigation fluid flows through an annular channel formed between the oscillating tip and an external protective sleeve.
  • the sleeve is typically constructed from a material with a low coefficient of thermal conductivity to reduce the amount of heat that flows into the cornea. Excessive heating may permanently damage the eye .
  • the tip is also coupled to an aspiration system that pulls the emulsified tissue and irrigation fluid out of the anterior chamber.
  • the emulsified tissue and irrigation fluid flow through an inner channel in the oscillating tip.
  • An intraocular lens is implanted into the eye after the cataract lens is emulsified and removed. It is desirable to reduce the size of the incision formed in the eye to reduce post-operative complications.
  • intraocular lenses that can be inserted through an incision approximately 2.5 millimeters (mm) .
  • Most phaco tips require an incision of 3 mm. It is difficult to further reduce the diameter of both the tip and the outer sleeve of a phaco tip to fit the 2.5 mm profile.
  • One embodiment of the present invention is an ophthalmic cutter system that includes a cutter adapted to cut tissue such as a cataract lens and an irrigation handpiece adapted to hold the lens.
  • the irrigation handpiece may be coupled to an irrigation system that introduces an irrigation fluid to the surgical site through the handpiece .
  • the cutter may be coupled to an aspiration system that provides vacuum pulses to the surgical site.
  • the vacuum pulses may pull tissue into a wire located at a distal end of a cutter cannula.
  • the pulses may break and emulsify the tissue which is then aspirated through the cannula by the aspiration system.
  • the wire may be connected to a controller that provides a current which is transformed into heat . The heat may assist in emulsifying the tissue.
  • Figure 1 is a schematic of an embodiment of an ophthalmic cutter system of the present invention
  • Figure 2 is a perspective view of an embodiment of a cutter of the system
  • Figure 3 is a graph showing vacuum pressure versus time within an aspiration line of the system
  • Figure 4 is a top view of an embodiment of a pulse generator.
  • Figure 1 shows an embodiment of an ophthalmic cutter system 10 of the present invention.
  • the cutter system 10 may be used by a surgeon to cut and emulsify tissue.
  • the cutter system 10 may be employed to emulsify and aspirate a cataract lens within the eye.
  • the system 10 may include a cutter 12 that is coupled to an aspiration system 14.
  • the cutter 12 may include a tip 16 that extends from a handpiece 18 adapted to be held by a surgeon.
  • the tip 16 can be inserted into the eye to emulsify a lens.
  • FIG. 2 shows an embodiment of a cutter tip 16.
  • the tip 16 may include an inner cannula 20 that extends through an inner passage 22 of an outer cannula 24.
  • the inner cannula 20 may have an inner passage 26 in fluid communication with an opening 28 located at the distal end of the tip 16.
  • the inner cannula 20 may have a wire or wires 30 that extend across the opening 28. Although a pair of wires is shown, it is to be understood that a different number of wires may be employed in the present invention.
  • the outer cannula 24 may have a plurality of teeth 32 that can become embedded into tissue.
  • the outer cannula 24 may be fixed to the handpiece 18 shown in Fig. 1.
  • the inner cannula 20 may be connected to a knob 34 that allows a surgeon to rotate the cannula 20.
  • the cutter 12 may also have a bearing assembly (not shown) that allows the inner cannula 20 to rotate relative to the outer cannula 24.
  • the inner cannula 20 may be rotated relative to the outer cannula 24 to induce a cutting action across the wires 30.
  • the aspiration system 14 may include an aspiration tube 36 that is coupled to the inner passage 26 of the inner cannula 20.
  • the aspiration tube 36 is connected to a vacuum pump 38 and a collection canister 40.
  • the vacuum pump 38 may be a peristaltic pump.
  • the vacuum pump 38 creates a vacuum pressure within the aspiration tube 36 and a flow of fluid from the opening 28 of the inner cannula 20 to the canister 40.
  • the aspiration system 14 can pull emulsified tissue and fluid through the inner passage 26 and into the canister 40.
  • the aspiration system 14 may also have a pulse generator or other device 42 that can create vacuum pulses within the aspiration tube 36 and the inner passage 26.
  • the pulse generator 42 may create a series of vacuum pulses as shown in Figure 3.
  • the vacuum pulses reduce the pressure within the tube 36.
  • square pulses are shown, it is to be understood that the pulses may have a variety of different waveforms. For example, the pulses may have a sawtooth waveform.
  • the pulse generator 42 and vacuum pump 38 may be connected to a controller 44.
  • the controller 44 can control the speed of the pump 38 and the corresponding steady state vacuum pressure within the aspiration tube 36.
  • the controller 44 can also control the repetition rate of the pulses generated by the pulse generator 42.
  • the vacuum pressure and pulse rate can be varied by an operator through external knobs 46 and 48, respectively, located on a console 50.
  • the vacuum pressure and pulse rate may also be controlled through a foot pedal 52 connected to the controller 44.
  • the foot pedal 52 and controller 44 may operate in two modes.
  • the steady state vacuum pressure may be varied in the first mode.
  • the pulse rate may be varied in the second mode.
  • the first mode can be initiated by depressing the foot pedal 52. Further depression of the foot pedal 52 may initiate the second mode.
  • the system 10 may also be configured so that the operator can simultaneously vary the vacuum pressure and the pulse rate.
  • the controller 44 may also be electrically connected to the wire(s) 30.
  • the controller 44 may provide a current to the wire(s) 30 to generate heat.
  • the heat can assist in emulsifying the tissue.
  • the current may be direct current (DC) or alternating current (AC) including AC current at a radio frequency (RF) .
  • the amplitude and/or frequency of the current can be controlled through the foot pedal 52 or knobs.
  • the system 10 may have an irrigation system 54.
  • the irrigation system 54 may have an aspiration handpiece 56 adapted to hold the tissue during emul i ication.
  • the handpiece 56 may have a jaw portion 58 that extends from a handle portion 60.
  • the handle portion 60 may be held by the surgeon.
  • the handpiece 56 may further have an inner passage 62 that is in fluid communication with an opening 64.
  • the inner passage 62 is in fluid communication with an irrigation tube 66.
  • the irrigation tube 66 is connected to an irrigation bag 68.
  • the irrigation bag 68 may gravity feed irrigation fluid into the inner passage 62 and through the opening 64.
  • the tip 16 may be inserted through an incision formed in the eye. Because the tip of the present invention does not have the outer sleeve typically found in phaco tip of the prior art, the tip 16 of the present invention may be constructed so that the incision is on the order of 1 millimeter. This incision size is smaller than incisions found in the prior art . Especially with respect to phaco procedures which utilize phaco devices that have an outer irrigation sleeve. The outer sleeve of phaco tips increases the overall diameter of the tips and the size of the incision. By eliminating the outer sleeve, the device of the present invention reduces the overall diameter of the tip and the size of the incision.
  • the irrigation handpiece 54 can be introduced into the anterior chamber through an opening separate from the incision used for the aspiration tip.
  • the irrigation system 54 provides irrigation fluid to the anterior chamber to maintain the pressure therein.
  • the vacuum pump 38 may be actuated to create a flow of fluid from the anterior chamber to the canister 40 by depressing the foot pedal 52.
  • the surgeon can manipulate the tip 16 so that the teeth of the outer cannula 20 become embedded into the lens of the eye.
  • the pulse generator 42 can be activated to create the vacuum pulses by further depressing the foot pedal 52.
  • the vacuum pulses repetitively pull the lens into the wires to cut the lens tissue.
  • the pulsing effect enhances the vacuum energy, resulting in added efficiency of tissue removal .
  • the surgeon can also rotate the inner cannula 20 to further induce cutting of the lens.
  • the broken lens is then aspirated through the inner passage 26 and into the canister 40.
  • the present invention is to be distinguished from ultrasonically driven handpieces which move a tip into and out of the lens with energy referred to as cavitation.
  • the movement of prior art tips relative to the outer protective sleeves generates heat that may damage the eye typically through thermal shrinkage of the cornea.
  • the present invention pulls the lens into and away from the tip and thus does not generate the heat found in ultrasonically driven phaco tips of the prior art .
  • FIG 4 shows an embodiment of a pulse generator 42.
  • the generator 42 may include a syringe 70 that is connected to the aspiration tube 36.
  • the generator 42 may further have a plurality of rotating weights 72 that repetitively strike a plunger 74 of the syringe 70.
  • a vacuum pulse is created each time a weight engages the plunger 7 .
  • the weights 72 may be connected to a rotary motor 76 by a plurality of spring rods 78.
  • the speed of the motor 76 can be controlled by the controller 44 shown in Fig. 1.
  • the plunger 74 may be biased in an inward direction by a biasing spring (not shown) .
  • the tip and other components can be used to cut, emulsify, etc. tissue in other areas.
  • the system could be used to perform procedures on a prostate or a spinal disk and liposuction.

Abstract

An ophthalmic cutter system (10) that includes a cutter (12) adapted to cut tissue such as a cataract lens and an irrigation handpiece (56) adapted to hold the lens. The irrigation handpiece (56) may be coupled to an irrigation system (54) that introduces an irrigation fluid to the surgical site through the handpiece (56). The cutter (12) may be coupled to an aspiration system (14) that provides vacuum pulses to the surgical site. The vacuum pulses may pull tissue into a wire (30) located at a distal end (28) of a cutter cannula (20). The pulses may break and emulsify the tissue which is then aspirated through the cannula (20) by the aspiration system (14). The wire (30) may be connected to a controller (44) that provides a current which is transformed into heat. The heat may assist in emulsifying the tissue.

Description

PULSED VACUUM CATARACT REMOVAL SYSTEM
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
The present invention relates to a system for removing tissue from the human body.
2. BACKGROUND INFORMATION
Tissue, including cataract lenses, are typically removed with an ultrasonically driven handpiece. For example, in a cataract procedure, it is commonly referred to as phacoemulsification. A phaco handpiece includes a tip that is inserted through an incision formed in the cornea. The tip is oscillated by a driver unit at an ultrasonic frequency. The oscillating tip breaks and emulsifies the lens.
The tip is coupled to an irrigation system that introduces irrigation fluid into the anterior chamber of the eye. The irrigation fluid cools the tip and maintains the ocular pressure of the anterior chamber. The irrigation fluid flows through an annular channel formed between the oscillating tip and an external protective sleeve. The sleeve is typically constructed from a material with a low coefficient of thermal conductivity to reduce the amount of heat that flows into the cornea. Excessive heating may permanently damage the eye .
The tip is also coupled to an aspiration system that pulls the emulsified tissue and irrigation fluid out of the anterior chamber. The emulsified tissue and irrigation fluid flow through an inner channel in the oscillating tip.
An intraocular lens is implanted into the eye after the cataract lens is emulsified and removed. It is desirable to reduce the size of the incision formed in the eye to reduce post-operative complications. There have been developed intraocular lenses that can be inserted through an incision approximately 2.5 millimeters (mm) . Most phaco tips require an incision of 3 mm. It is difficult to further reduce the diameter of both the tip and the outer sleeve of a phaco tip to fit the 2.5 mm profile. It would be desirable to provide an ophthalmic cutting system that would require an incision smaller than incisions formed in prior art procedures. It would also be desirable to provide an ophthalmic cutting system that did not generate heat at the corneal incision. Other types of procedures would be enhanced by similar improvements .
SUMMARY OF THE INVENTION
One embodiment of the present invention is an ophthalmic cutter system that includes a cutter adapted to cut tissue such as a cataract lens and an irrigation handpiece adapted to hold the lens. The irrigation handpiece may be coupled to an irrigation system that introduces an irrigation fluid to the surgical site through the handpiece . The cutter may be coupled to an aspiration system that provides vacuum pulses to the surgical site. The vacuum pulses may pull tissue into a wire located at a distal end of a cutter cannula. The pulses may break and emulsify the tissue which is then aspirated through the cannula by the aspiration system. The wire may be connected to a controller that provides a current which is transformed into heat . The heat may assist in emulsifying the tissue. BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic of an embodiment of an ophthalmic cutter system of the present invention;
Figure 2 is a perspective view of an embodiment of a cutter of the system;
Figure 3 is a graph showing vacuum pressure versus time within an aspiration line of the system;
Figure 4 is a top view of an embodiment of a pulse generator.
DETAILED DESCRIPTION
Referring to the drawings more particularly by reference numbers, Figure 1 shows an embodiment of an ophthalmic cutter system 10 of the present invention. The cutter system 10 may be used by a surgeon to cut and emulsify tissue. By way of example, the cutter system 10 may be employed to emulsify and aspirate a cataract lens within the eye.
The system 10 may include a cutter 12 that is coupled to an aspiration system 14. The cutter 12 may include a tip 16 that extends from a handpiece 18 adapted to be held by a surgeon. The tip 16 can be inserted into the eye to emulsify a lens.
Figure 2 shows an embodiment of a cutter tip 16. The tip 16 may include an inner cannula 20 that extends through an inner passage 22 of an outer cannula 24. The inner cannula 20 may have an inner passage 26 in fluid communication with an opening 28 located at the distal end of the tip 16. The inner cannula 20 may have a wire or wires 30 that extend across the opening 28. Although a pair of wires is shown, it is to be understood that a different number of wires may be employed in the present invention.
The outer cannula 24 may have a plurality of teeth 32 that can become embedded into tissue. The outer cannula 24 may be fixed to the handpiece 18 shown in Fig. 1. The inner cannula 20 may be connected to a knob 34 that allows a surgeon to rotate the cannula 20. The cutter 12 may also have a bearing assembly (not shown) that allows the inner cannula 20 to rotate relative to the outer cannula 24. The inner cannula 20 may be rotated relative to the outer cannula 24 to induce a cutting action across the wires 30. The aspiration system 14 may include an aspiration tube 36 that is coupled to the inner passage 26 of the inner cannula 20. The aspiration tube 36 is connected to a vacuum pump 38 and a collection canister 40. By way of example, the vacuum pump 38 may be a peristaltic pump. The vacuum pump 38 creates a vacuum pressure within the aspiration tube 36 and a flow of fluid from the opening 28 of the inner cannula 20 to the canister 40. The aspiration system 14 can pull emulsified tissue and fluid through the inner passage 26 and into the canister 40.
The aspiration system 14 may also have a pulse generator or other device 42 that can create vacuum pulses within the aspiration tube 36 and the inner passage 26. The pulse generator 42 may create a series of vacuum pulses as shown in Figure 3. The vacuum pulses reduce the pressure within the tube 36. Although square pulses are shown, it is to be understood that the pulses may have a variety of different waveforms. For example, the pulses may have a sawtooth waveform.
The pulse generator 42 and vacuum pump 38 may be connected to a controller 44. The controller 44 can control the speed of the pump 38 and the corresponding steady state vacuum pressure within the aspiration tube 36. The controller 44 can also control the repetition rate of the pulses generated by the pulse generator 42. The vacuum pressure and pulse rate can be varied by an operator through external knobs 46 and 48, respectively, located on a console 50. The vacuum pressure and pulse rate may also be controlled through a foot pedal 52 connected to the controller 44. The foot pedal 52 and controller 44 may operate in two modes. The steady state vacuum pressure may be varied in the first mode. The pulse rate may be varied in the second mode. The first mode can be initiated by depressing the foot pedal 52. Further depression of the foot pedal 52 may initiate the second mode. The system 10 may also be configured so that the operator can simultaneously vary the vacuum pressure and the pulse rate.
The controller 44 may also be electrically connected to the wire(s) 30. The controller 44 may provide a current to the wire(s) 30 to generate heat. The heat can assist in emulsifying the tissue. The current may be direct current (DC) or alternating current (AC) including AC current at a radio frequency (RF) . The amplitude and/or frequency of the current can be controlled through the foot pedal 52 or knobs. Although a connection between the controller 44 and wire(s) 30 is described, it is to be understood that the heating element may be another element or device.
The system 10 may have an irrigation system 54. The irrigation system 54 may have an aspiration handpiece 56 adapted to hold the tissue during emul i ication. The handpiece 56 may have a jaw portion 58 that extends from a handle portion 60. The handle portion 60 may be held by the surgeon. The handpiece 56 may further have an inner passage 62 that is in fluid communication with an opening 64. The inner passage 62 is in fluid communication with an irrigation tube 66. The irrigation tube 66 is connected to an irrigation bag 68. The irrigation bag 68 may gravity feed irrigation fluid into the inner passage 62 and through the opening 64.
In operation, the tip 16 may be inserted through an incision formed in the eye. Because the tip of the present invention does not have the outer sleeve typically found in phaco tip of the prior art, the tip 16 of the present invention may be constructed so that the incision is on the order of 1 millimeter. This incision size is smaller than incisions found in the prior art . Especially with respect to phaco procedures which utilize phaco devices that have an outer irrigation sleeve. The outer sleeve of phaco tips increases the overall diameter of the tips and the size of the incision. By eliminating the outer sleeve, the device of the present invention reduces the overall diameter of the tip and the size of the incision.
The irrigation handpiece 54 can be introduced into the anterior chamber through an opening separate from the incision used for the aspiration tip. The irrigation system 54 provides irrigation fluid to the anterior chamber to maintain the pressure therein. The vacuum pump 38 may be actuated to create a flow of fluid from the anterior chamber to the canister 40 by depressing the foot pedal 52. The surgeon can manipulate the tip 16 so that the teeth of the outer cannula 20 become embedded into the lens of the eye. The pulse generator 42 can be activated to create the vacuum pulses by further depressing the foot pedal 52. The vacuum pulses repetitively pull the lens into the wires to cut the lens tissue. The pulsing effect enhances the vacuum energy, resulting in added efficiency of tissue removal . The surgeon can also rotate the inner cannula 20 to further induce cutting of the lens. The broken lens is then aspirated through the inner passage 26 and into the canister 40.
The present invention is to be distinguished from ultrasonically driven handpieces which move a tip into and out of the lens with energy referred to as cavitation. The movement of prior art tips relative to the outer protective sleeves generates heat that may damage the eye typically through thermal shrinkage of the cornea. The present invention pulls the lens into and away from the tip and thus does not generate the heat found in ultrasonically driven phaco tips of the prior art .
Figure 4 shows an embodiment of a pulse generator 42. The generator 42 may include a syringe 70 that is connected to the aspiration tube 36. The generator 42 may further have a plurality of rotating weights 72 that repetitively strike a plunger 74 of the syringe 70. A vacuum pulse is created each time a weight engages the plunger 7 . The weights 72 may be connected to a rotary motor 76 by a plurality of spring rods 78. The speed of the motor 76 can be controlled by the controller 44 shown in Fig. 1. The plunger 74 may be biased in an inward direction by a biasing spring (not shown) .
While certain exemplary embodiments have been described and shown in the accompanying drawings, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that this invention not be limited to the specific constructions and arrangements shown and described, since various other modifications may occur to those ordinarily skilled in the art.
For example, although the system 10 has been described for use in an eye, it is to be understood that the tip and other components can be used to cut, emulsify, etc. tissue in other areas. For example, the system could be used to perform procedures on a prostate or a spinal disk and liposuction.

Claims

CLAIMSWhat is claimed is:
1. An aspiration system that can be coupled to a medical handpiece, comprising: an aspiration tube; a vacuum generator adapted to create a vacuum pressure within said aspiration tube; and, a pulse generator adapted to create a plurality of vacuum pulses within said aspiration tube.
2. The aspiration system of claim 1, wherein the vacuum pulses decrease the pressure within said aspiration tube.
3. The aspiration system of claim 1, wherein said pulse generator is coupled to an input device that can be manipulated to vary a repetition rate of the vacuum pulses.
4. The aspiration system of claim 3, wherein said input device is a foot pedal .
5. An medical handpiece, comprising: a first cannula that has an inner passage which is in fluid communication with a distal opening; and, a wire that extends across said distal opening.
6. The handpiece of claim 5, further comprising a second cannula that extends over said first cannula.
7. The handpiece of claim 6, wherein said second cannula has a plurality of external teeth.
8. The handpiece of claim 6, wherein said first cannula can be rotated within said second cannula.
9. A tissue removal system, comprising: a cutter adapted to cut a tissue ; an irrigation handpiece adapted to hold the tissue ,- an aspiration system coupled to said cutter; and, an irrigation system coupled to said irrigation handpiece .
10. The system of claim 9, wherein said aspiration system includes an aspiration tube, a vacuum generator adapted to create a vacuum pressure within said aspiration tube, and a pulse generator adapted to create a plurality of vacuum pulses within said aspiration tube.
11. The system of claim 10, wherein the vacuum pulses decrease the pressure within said aspiration tube.
12. The system of claim 10, wherein said pulse generator is coupled to an input device that can be manipulated to vary a repetition rate of the vacuum pulses.
13. The system of claim 12, wherein said input device is a foot pedal .
14. The system of claim 9, wherein said cutter includes a first cannula that has an inner passage in fluid communication with a distal opening, and a wire that extends across said distal opening.
15. The system of claim 14, further comprising a second cannula that extends over said first cannula.
16. The system of claim 15, wherein said second cannula has a plurality of external teeth.
17. The system of claim 15, wherein said first cannula can be rotated within said second cannula.
18. A medical cutter, comprising: a first cannula that has an inner passage that is in fluid communication with a distal opening; a wire that extends across said distal opening; an aspiration tube that is in fluid communication with said inner passage; a vacuum generator adapted to create a vacuum pressure within said aspiration tube; and, a pulse generator adapted to create a plurality of vacuum pulses within said aspiration tube.
19. The cutter of claim 18, wherein the vacuum pulses decrease the pressure within said aspiration tube .
20. The cutter of claim 18, wherein said pulse generator is coupled to an input device that can be manipulated to vary a repetition rate of the vacuum pulses .
21. The cutter of claim 20, wherein said input device is a foot pedal.
22. The cutter of claim 18, further comprising a second cannula that extends over said first cannula.
23. The cutter of claim 22, wherein said second cannula has a plurality of external teeth.
24. The cutter of claim 22, wherein said first cannula can be rotated within said second cannula.
25. A medical device, comprising: a first cannula that has an inner passage which is in fluid communication with a distal opening; a heating element that is coupled to said first cannula; and, a controller that provides energy to said heating element .
26. The device of claim 25, wherein said heating element is a wire that extends across said distal opening.
27. The device of claim 25, further comprising a second cannula that extends over said first cannula.
28. The device of claim 25, wherein said second cannula has a plurality of external teeth.
29. The device of claim 25, wherein said first cannula can be rotated within said second cannula.
PCT/US2001/003286 2000-02-01 2001-01-31 Pulsed vacuum cataract removal system WO2001087380A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001234726A AU2001234726A1 (en) 2000-02-01 2001-01-31 Pulsed vacuum cataract removal system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/495,633 2000-02-01
US09/495,633 US6428508B1 (en) 2000-02-01 2000-02-01 Pulsed vacuum cataract removal system

Publications (1)

Publication Number Publication Date
WO2001087380A1 true WO2001087380A1 (en) 2001-11-22

Family

ID=23969381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/003286 WO2001087380A1 (en) 2000-02-01 2001-01-31 Pulsed vacuum cataract removal system

Country Status (3)

Country Link
US (2) US6428508B1 (en)
AU (1) AU2001234726A1 (en)
WO (1) WO2001087380A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160003769A (en) * 2012-09-04 2016-01-11 매드-로직스 아이엔씨. Tissue removal devices, systems and methods
EP2892438A4 (en) * 2012-09-04 2016-04-27 Med Logics Inc Tissue removal devices, systems and methods
US9913678B2 (en) 2005-07-18 2018-03-13 Tearscience, Inc. Methods, apparatuses, and systems for reducing intraocular pressure as a means of preventing or treating open-angle glaucoma
US9999710B2 (en) 2009-01-07 2018-06-19 Med-Logics, Inc. Tissue removal devices, systems and methods

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1810645B1 (en) * 2001-11-22 2010-07-28 Eduard Anton Haefliger Device and method for performing ophthalmologic operations
US20050025646A1 (en) * 2003-07-30 2005-02-03 Vance Products Inc. D/B/A Cook Urological Incorporated Foot pedal medical irrigation system
US20050234394A1 (en) * 2004-03-26 2005-10-20 Rod Ross Dual cylinder vacuum pump for medical aspiration system
JP4843828B2 (en) 2004-04-15 2011-12-21 アルコン，インコーポレイティド System that instructs removal of cataract tissue
US9119700B2 (en) 2004-11-30 2015-09-01 Novartis Ag Graphical user interface system and method for representing and controlling surgical parameters
US7945341B2 (en) * 2004-11-30 2011-05-17 Alcon, Inc. Graphical user interface for selecting pulse parameters in a phacoemulsification surgical system
EP2063933A2 (en) * 2006-10-16 2009-06-03 Alcon Research, Ltd. Method of operating ophthalmic hand piece with disposable end
CN101401755B (en) * 2007-09-28 2013-01-23 株式会社尼德克 Head for ultrasonic operation and knife head for ultrasonic operation
AU2010203588B2 (en) * 2009-01-07 2014-01-16 Liquet Technologies, Inc. Tissue removal devices, systems and methods
US20120089080A1 (en) * 2009-01-07 2012-04-12 Enlighten Technologies, Inc. Tissue removal devices, systems and methods
US8882678B2 (en) 2009-03-13 2014-11-11 Atrium Medical Corporation Pleural drainage system and method of use
KR101157627B1 (en) * 2010-02-18 2012-06-19 (재)예수병원유지재단 Instrument for extracting vital tissue
US10052227B2 (en) * 2012-09-18 2018-08-21 Liviu B. Saimovici Cataract removal device and integrated tip
US10624785B2 (en) 2016-01-30 2020-04-21 Carl Zeiss Meditec Cataract Technology Inc. Devices and methods for ocular surgery
CN114569326A (en) 2017-05-04 2022-06-03 卡尔蔡司白内障医疗技术公司 Device and method for ophthalmic surgery
CN111867532B (en) * 2018-02-19 2024-01-05 新加坡保健服务集团有限公司 Method and apparatus for shearing tissue at a target surgical site
US11638660B2 (en) 2018-06-05 2023-05-02 Carl Zeiss Meditec Cataract Technology Inc. Ophthalmic microsurgical tools, systems, and methods of use
WO2020160434A1 (en) 2019-02-01 2020-08-06 Carl Zeiss Meditec Cataract Technology Inc. Ophthalmic cutting instruments having integrated aspiration pump
AU2020277300A1 (en) 2019-05-17 2021-12-16 Carl Zeiss Meditec Cataract Technology Inc. Ophthalmic cutting instruments having integrated aspiration pump
JP7455868B2 (en) 2019-06-07 2024-03-26 カール・ツァイス・メディテック・キャタラクト・テクノロジー・インコーポレイテッド Multi-Stage Trigger for Ophthalmic Cutting Tools

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812855A (en) * 1971-12-15 1974-05-28 Surgical Design Corp System for controlling fluid and suction pressure
US4678459A (en) * 1984-07-23 1987-07-07 E-Z-Em, Inc. Irrigating, cutting and aspirating system for percutaneous surgery
US5133713A (en) * 1990-03-27 1992-07-28 Huang Jong Khing Apparatus of a spinning type of resectoscope for prostatectomy
US5242404A (en) * 1992-02-12 1993-09-07 American Cyanamid Company Aspiration control system
US6013049A (en) * 1998-10-29 2000-01-11 Allergan Sales, Inc. Controlled outflow sleeve
US6086544A (en) * 1999-03-31 2000-07-11 Ethicon Endo-Surgery, Inc. Control apparatus for an automated surgical biopsy device

Family Cites Families (204)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23496E (en) 1952-05-20 Seeler
US1841968A (en) 1924-08-16 1932-01-19 William J Cameron Radio-surgical apparatus
US1847658A (en) 1925-01-26 1932-03-01 Lasker Edward Breast pump
US2070281A (en) 1935-07-12 1937-02-09 Leggiadro Vincent Surgical knife
US2480737A (en) 1948-03-08 1949-08-30 Jayle Gaetan Jean-Edward Cutting instrument particularly useful in connection with corneal grafting
US2708437A (en) 1952-03-31 1955-05-17 Elizabeth Painter Hutchins Surgical instrument
US2824455A (en) 1952-06-27 1958-02-25 Milwaukee Electric Tool Corp Portable reciprocating saw
US3033196A (en) 1957-09-16 1962-05-08 Air Reduction Artificial respiration apparatus
US3308828A (en) 1963-08-08 1967-03-14 Eugene E Bernard Craniotomy instrument
US3266494A (en) 1963-08-26 1966-08-16 Possis Machine Corp Powered forceps
US3252623A (en) 1965-07-22 1966-05-24 C F Liquidation Corp Apparatus for monitoring dispensing of liquid
US3399677A (en) 1966-07-01 1968-09-03 Goodrich Co B F Catheter and valve therefor
US3583403A (en) 1967-06-27 1971-06-08 Austenal Europa Inc Dermatome
NL145136C (en) 1967-07-25 1900-01-01
US3561429A (en) 1968-05-23 1971-02-09 Eversharp Inc Instrument for obtaining a biopsy specimen
US3511162A (en) 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone
US3624821A (en) 1969-09-17 1971-11-30 Stanford A Henderson Suction pump
US3882872A (en) 1970-01-05 1975-05-13 Nicholas G Douvas Method and apparatus for cataract surgery
US3763862A (en) 1970-02-06 1973-10-09 Duerr Dental Kg Arrangement at a suction installation for medicinal hygienic and cosmetic purposes
US3693613A (en) 1970-12-09 1972-09-26 Cavitron Corp Surgical handpiece and flow control system for use therewith
US3723030A (en) 1971-03-03 1973-03-27 Buchler Instr Division Peristaltic pump with stacked components
US3752161A (en) 1971-08-02 1973-08-14 Minnesota Mining & Mfg Fluid operated surgical tool
US3841799A (en) 1971-08-23 1974-10-15 East West Med Prod Medical cassette pump
US3920014A (en) 1971-12-15 1975-11-18 Anton Banko Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field
US3815604A (en) 1972-06-19 1974-06-11 Malley C O Apparatus for intraocular surgery
US3884238A (en) 1972-06-19 1975-05-20 Malley Conor C O Apparatus for intraocular surgery
US3977425A (en) 1972-12-04 1976-08-31 Tokico Ltd. Hydraulic pressure control valve
US3842839A (en) 1973-04-05 1974-10-22 L Malis Rongeur
CH586036A5 (en) 1973-12-21 1977-03-31 Schaerer Ag M
US3899829A (en) 1974-02-07 1975-08-19 Fred Storm Ind Designs Inc Holder and actuator means for surgical instruments
US3903881A (en) 1974-04-12 1975-09-09 Bourns Inc Respirator system and method
US3930505A (en) 1974-06-24 1976-01-06 Hydro Pulse Corporation Surgical apparatus for removal of tissue
US3913584A (en) 1974-06-28 1975-10-21 Xomox Corp Combination myringotomy scalpel, aspirator and otological vent tube inserter
US3982539A (en) 1974-08-16 1976-09-28 Health Technology Labs, Inc. Medical/surgical suction equipment
US4043342A (en) 1974-08-28 1977-08-23 Valleylab, Inc. Electrosurgical devices having sesquipolar electrode structures incorporated therein
US4004590A (en) 1974-11-15 1977-01-25 Health Technology Laboratories, Inc. Medical/surgical suction equipment
US3983474A (en) 1975-02-21 1976-09-28 Polhemus Navigation Sciences, Inc. Tracking and determining orientation of object using coordinate transformation means, system and process
US4011869A (en) 1975-08-01 1977-03-15 David Kopf Instruments Tubular cutting instrument
DE2547185A1 (en) 1975-10-22 1977-04-28 Hennig Juergen Hand operated surgical instrument with hinged arms - has pneumatic or hydraulic power system to provide motion energy for the hinged arms
US4034712A (en) 1975-11-24 1977-07-12 Duncan Lloyd P Pulsation system
US4135515A (en) 1975-12-03 1979-01-23 Health Technology Laboratories, Inc. Medical/surgical suction equipment
DE2601802C3 (en) 1976-01-20 1979-02-08 Richard Wolf Gmbh, 7134 Knittlingen Instruments for the treatment of urethral strictures
DE2741663C2 (en) 1976-09-17 1986-05-07 The University Of Melbourne, Parkville, Victoria Cornea cutter
US4308835A (en) 1980-01-25 1982-01-05 Abbey Harold Closed-loop fluidic control system for internal combustion engines
US4108182A (en) 1977-02-16 1978-08-22 Concept Inc. Reciprocation vitreous suction cutter head
US4173980A (en) 1977-02-25 1979-11-13 Curtin Brian J Corneal resurfacing apparatus and method
US4168707A (en) 1977-06-13 1979-09-25 Douvas Nicholas G Control apparatus for microsurgical instruments
US4178707A (en) 1977-07-18 1979-12-18 Littlefield John V Display apparatus utilizing magnetic materials
US4204328A (en) 1977-11-14 1980-05-27 Kutner Barry S Variable diameter aspirating tip
US4217993A (en) 1977-12-02 1980-08-19 Baxter Travenol Laboratories, Inc. Flow metering apparatus for a fluid infusion system
US4223676A (en) 1977-12-19 1980-09-23 Cavitron Corporation Ultrasonic aspirator
US4246902A (en) 1978-03-10 1981-01-27 Miguel Martinez Surgical cutting instrument
US4210146A (en) 1978-06-01 1980-07-01 Anton Banko Surgical instrument with flexible blade
US4320761A (en) 1979-02-06 1982-03-23 Haddad Heskel M Surgical device for excision of tissue
US4245815A (en) 1979-02-23 1981-01-20 Linear Dynamics, Inc. Proportional solenoid valve and connector
US4274411A (en) 1979-03-30 1981-06-23 Dotson Robert S Jun Fluid operated ophthalmic irrigation and aspiration device
NL179781C (en) 1979-04-11 Westfalia Separator Ag
NL7903623A (en) 1979-05-09 1980-11-11 Stamicarbon METHOD FOR PURIFYING UREAUS WASTE WATER AND METHOD FOR PREPARING MELAMINE.
US4314560A (en) 1979-11-28 1982-02-09 Helfgott Maxwell A Powered handpiece for endophthalmic surgery
US4301802A (en) 1980-03-17 1981-11-24 Stanley Poler Cauterizing tool for ophthalmological surgery
US4428748A (en) 1980-04-09 1984-01-31 Peyman Gholam A Combined ultrasonic emulsifier and mechanical cutter for surgery
US4319899A (en) 1980-04-28 1982-03-16 Pure Air Corporation Air handling system for laminar flow clean enclosure
DE3017245A1 (en) 1980-05-06 1981-11-12 Ritter Ag, 7500 Karlsruhe ADJUSTMENT DEVICE FOR CONTROLLING THE OPERATING DENTAL INSTRUMENTS
FR2489141A1 (en) 1980-09-03 1982-03-05 Sevifra SURGICAL APPARATUS FOR PRECISE CUTTING OF THE CORNEA
US4395258A (en) 1980-11-03 1983-07-26 Cooper Medical Devices Linear intra-ocular suction device
US4493698A (en) 1980-11-03 1985-01-15 Cooper Medical Devices Method of performing opthalmic surgery utilizing a linear intra-ocular suction device
DE3042203A1 (en) 1980-11-08 1982-07-15 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen WINNING MACHINE GUIDE, PARTICULARLY PLANING GUIDE
US4674499A (en) 1980-12-08 1987-06-23 Pao David S C Coaxial bipolar probe
US4805616A (en) 1980-12-08 1989-02-21 Pao David S C Bipolar probes for ophthalmic surgery and methods of performing anterior capsulotomy
US4476862A (en) 1980-12-08 1984-10-16 Pao David S C Method of scleral marking
US4481948A (en) 1980-12-29 1984-11-13 Sole Gary M Medical instrument, and methods of constructing and utilizing same
US4344784A (en) 1981-02-27 1982-08-17 Dexon, Inc. Filter assembly for clean air rooms and work stations
US4674503A (en) 1981-03-05 1987-06-23 Peyman Gholam A Controlled depth penetrant apparatus and method
US4688570A (en) 1981-03-09 1987-08-25 The Regents Of The University Of California Ophthalmologic surgical instrument
US4396386A (en) 1981-05-07 1983-08-02 Bioresearch Inc. Surgical drainage apparatus with suction control and indication
US4598729A (en) 1981-06-19 1986-07-08 Nippondenso Co., Ltd. Negative pressure control valve
FR2508160A1 (en) 1981-06-23 1982-12-24 Cilas DEVICE FOR DETERMINING THE POSITION OF AN OBJECT
US4445517A (en) 1981-09-28 1984-05-01 Feild James Rodney Suction dissector
US4427427A (en) 1982-01-19 1984-01-24 Veco S.A. Vertical laminar flow filter module
SU1050702A1 (en) 1982-04-13 1983-10-30 Горьковский государственный медицинский институт им.С.М.Кирова Device for breaking and aspirating cataracta
USRE33250E (en) 1982-06-01 1990-07-03 Site Microsurgical Systems, Inc. Microsurgical system cassette assembly
US4493695A (en) 1982-06-01 1985-01-15 Site Microsurgical Systems, Inc. Opthalmic microsurgical system cassette assembly
US4555645A (en) 1982-12-01 1985-11-26 Snyder Laboratories, Inc. Moveable coil linear motor
US4475904A (en) 1982-12-29 1984-10-09 Medical Instrument Dev. Labs., Inc. Fast response vacuum aspiration collection system
DE3302558A1 (en) 1983-01-26 1984-07-26 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach FOOT CONTROL DEVICE, IN PARTICULAR FOR DENTAL APPARATUS
US4530357A (en) 1983-04-18 1985-07-23 Pawloski James A Fluid actuated orthopedic tool
JPS59200644A (en) 1983-04-27 1984-11-14 オリンパス光学工業株式会社 Surgical incision instrument
US4540406A (en) 1983-05-02 1985-09-10 Thoratec Laboratories Corporation Anticoagulant delivery system for use with an auto-transfusion system
US4522371A (en) 1983-06-20 1985-06-11 Borg-Warner Corporation Proportional solenoid valve
NL8302228A (en) 1983-06-22 1985-01-16 Optische Ind De Oude Delft Nv MEASURING SYSTEM FOR USING A TRIANGULAR PRINCIPLE, CONTACT-FREE MEASURING A DISTANCE GIVEN BY A SURFACE CONTOUR TO AN OBJECTIVE LEVEL.
FR2549727B1 (en) 1983-07-08 1986-11-28 Andre Zoulalian DESOBSTRUCTION APPARATUS, IN PARTICULAR DEVICE FOR SUCTION OF MUCOSITES
US4524948A (en) 1983-09-09 1985-06-25 Ranco Incorporated Electrically controlled pressure transducer valve
DE3342675A1 (en) 1983-11-25 1985-06-05 Fa. Carl Zeiss, 7920 Heidenheim METHOD AND DEVICE FOR CONTACTLESS MEASUREMENT OF OBJECTS
CH661981A5 (en) 1984-02-13 1987-08-31 Haenni & Cie Ag OPTICAL MEASURING DEVICE FOR CONTACTLESS DISTANCE MEASUREMENT.
DE3409798C1 (en) 1984-03-16 1985-10-24 Jörg Dr.med. 4630 Bochum Krumeich Fixing arrangement for holding a corneal disk removed from the human eye
US4560395A (en) 1984-04-17 1985-12-24 Environmental Air Control, Inc. Compact blower and filter assemblies for use in clean air environments
DE3433581C2 (en) 1984-09-13 1986-08-07 Fa. Carl Zeiss, 7920 Heidenheim Device for laminating, refractive corneal surgery
US4705395A (en) 1984-10-03 1987-11-10 Diffracto Ltd. Triangulation data integrity
NZ210351A (en) 1984-11-27 1988-05-30 Alfa Laval Nz Ltd Milking machine pulsator control system using modular rate, ratio and timing delay units
US4660556A (en) 1985-02-14 1987-04-28 Techno Opthalmics International, Inc. Method and apparatus for modifying corneal buttons
US4706687A (en) 1985-02-28 1987-11-17 Alcon Instrumentation, Inc. Linear suction control system
US4757814A (en) 1985-02-28 1988-07-19 Alcon Laboratories, Inc. Proportional control for pneumatic cutting device
US4838281A (en) 1985-02-28 1989-06-13 Alcon Laboratories, Inc. Linear suction control system
US4782239A (en) 1985-04-05 1988-11-01 Nippon Kogaku K. K. Optical position measuring apparatus
US4805615A (en) 1985-07-02 1989-02-21 Carol Mark P Method and apparatus for performing stereotactic surgery
US4770654A (en) 1985-09-26 1988-09-13 Alcon Laboratories Inc. Multimedia apparatus for driving powered surgical instruments
US4768506A (en) 1985-09-26 1988-09-06 Alcon Laboratories, Inc. Handpiece drive apparatus for powered surgical scissors
US4665914A (en) 1985-12-27 1987-05-19 Emanuel Tanne Automatic corneal surgery system
US4723545A (en) 1986-02-03 1988-02-09 Graduate Hospital Foundation Research Corporation Power assisted arthroscopic surgical device
US4807623A (en) 1986-05-30 1989-02-28 David M. Lieberman Device for simultaneously forming two incisions along a path on an eye
US4825191A (en) 1986-07-29 1989-04-25 Ching Hwei Lan Automobile multi-purpose auxiliary indicator
US4791934A (en) 1986-08-07 1988-12-20 Picker International, Inc. Computer tomography assisted stereotactic surgery system and method
DE3626971A1 (en) 1986-08-08 1988-02-18 Joerg Dr Med Krumeich DEVICE FOR HOLDING THE CORNUT TAKEN FROM A DISPENSER EYE
JPH01502090A (en) 1986-09-12 1989-07-27 オーラル・ロバーツ・ユニバーシティ Surgical tools using electromagnetic waves
US4743770A (en) 1986-09-22 1988-05-10 Mitutoyo Mfg. Co., Ltd. Profile-measuring light probe using a change in reflection factor in the proximity of a critical angle of light
US4837857A (en) 1986-11-06 1989-06-06 Storz Instrument Company Foot pedal assembly for ophthalmic surgical instrument
US4840175A (en) 1986-12-24 1989-06-20 Peyman Gholam A Method for modifying corneal curvature
US4782849A (en) 1987-02-09 1988-11-08 The Boc Group, Inc. Control unit for intermittent suction system
US4767403A (en) 1987-02-09 1988-08-30 The Boc Group, Inc. Positive pulse device and system
US4830047A (en) 1987-02-09 1989-05-16 The Boc Group, Inc. Control unit for intermittent suction system
US4947871A (en) 1987-08-10 1990-08-14 Grieshaber & Co. Ag Schaffhausen Process the surgical correction of ametropia of one or both eyes of living beings
US4819635A (en) 1987-09-18 1989-04-11 Henry Shapiro Tubular microsurgery cutting apparatus
US4828306A (en) 1988-03-07 1989-05-09 Blatt John A Vacuum cup control system
US5215104A (en) 1988-08-16 1993-06-01 Steinert Roger F Method for corneal modification
US4909815A (en) 1988-10-24 1990-03-20 International Air Filter, Inc. Mobile air cleaning apparatus
US5011482A (en) 1989-01-17 1991-04-30 Cook Pacemaker Corporation Apparatus for removing an elongated structure implanted in biological tissue
US5507751A (en) 1988-11-09 1996-04-16 Cook Pacemaker Corporation Locally flexible dilator sheath
US5207683A (en) 1988-11-09 1993-05-04 Cook Pacemaker Corporation Apparatus for removing an elongated structure implanted in biological tissue
US4943289A (en) 1989-05-03 1990-07-24 Cook Pacemaker Corporation Apparatus for removing an elongated structure implanted in biological tissue
US4988347A (en) 1988-11-09 1991-01-29 Cook Pacemaker Corporation Method and apparatus for separating a coiled structure from biological tissue
US5013310A (en) 1988-11-09 1991-05-07 Cook Pacemaker Corporation Method and apparatus for removing an implanted pacemaker lead
US4886085A (en) 1988-11-30 1989-12-12 General Motors Corporation Vacuum check valve and method of control
US4903695C1 (en) 1988-11-30 2001-09-11 Lri L P Method and apparatus for performing a keratomileusis or the like operation
US4965417A (en) 1989-03-27 1990-10-23 Massie Philip E Foot-operated control
US5226910A (en) 1989-07-05 1993-07-13 Kabushiki Kaisha Topcon Surgical cutter
US5106364A (en) 1989-07-07 1992-04-21 Kabushiki Kaisha Topcon Surgical cutter
US5817075A (en) 1989-08-14 1998-10-06 Photogenesis, Inc. Method for preparation and transplantation of planar implants and surgical instrument therefor
US5059204A (en) 1989-10-26 1991-10-22 Site Microsurgical Systems, Inc. Ocular cutter with enhanced cutting action
US5176628A (en) 1989-10-27 1993-01-05 Alcon Surgical, Inc. Vitreous cutter
US5041096A (en) * 1989-10-27 1991-08-20 Nestle, S.A. Fluid handling method and system and fluid interface apparatus usable therewith
US5152744A (en) 1990-02-07 1992-10-06 Smith & Nephew Dyonics Surgical instrument
US5133726A (en) 1990-02-14 1992-07-28 Ruiz Luis A Automatic corneal shaper
DE4029676C2 (en) 1990-09-19 1997-02-27 Hans Prof Dr Med Sachse Circularly oscillating saw
DE69133603D1 (en) 1990-10-19 2008-10-02 Univ St Louis System for localizing a surgical probe relative to the head
US5083558A (en) 1990-11-06 1992-01-28 Thomas William R Mobile surgical compartment with micro filtered laminar air flow
JP3123750B2 (en) * 1990-11-13 2001-01-15 株式会社ニデック Perfusion suction device
DE4122219A1 (en) 1991-07-04 1993-01-07 Delma Elektro Med App ELECTRO-SURGICAL TREATMENT INSTRUMENT
US5271379A (en) 1991-07-26 1993-12-21 The Regents Of The University Of California Endoscopic device actuator and method
US5217459A (en) 1991-08-27 1993-06-08 William Kamerling Method and instrument for performing eye surgery
US5285795A (en) 1991-09-12 1994-02-15 Surgical Dynamics, Inc. Percutaneous discectomy system having a bendable discectomy probe and a steerable cannula
US5273406A (en) 1991-09-12 1993-12-28 American Dengi Co., Inc. Pressure actuated peristaltic pump
US5273524A (en) 1991-10-09 1993-12-28 Ethicon, Inc. Electrosurgical device
US5531744A (en) 1991-11-01 1996-07-02 Medical Scientific, Inc. Alternative current pathways for bipolar surgical cutting tool
EP0634947B1 (en) 1992-04-10 2001-12-19 Surgilight,Inc. Apparatus for performing eye surgery
US5308673A (en) * 1992-05-07 1994-05-03 Minnesota Mining And Manufacturing Company Stitchbonded absorbent articles and method of making same
US5571113A (en) * 1992-05-18 1996-11-05 Henry H. McDonald Surgical probe with tips for plastic lens implantation in the eye
US5354268A (en) 1992-11-04 1994-10-11 Medical Instrument Development Laboratories, Inc. Methods and apparatus for control of vacuum and pressure for surgical procedures
US5437678A (en) 1992-11-30 1995-08-01 Neomedix Corporation Ophthalmic lens removal method and apparatus
DE4300064A1 (en) 1993-01-05 1994-07-07 Wolf Gmbh Richard Tissue punch
US5403276A (en) 1993-02-16 1995-04-04 Danek Medical, Inc. Apparatus for minimally invasive tissue removal
US5643304A (en) 1993-02-16 1997-07-01 Danek Medical, Inc. Method and apparatus for minimally invasive tissue removal
US5423330A (en) * 1993-03-10 1995-06-13 The University Of Miami Capsule suction punch instrument and method of use
US5403311A (en) 1993-03-29 1995-04-04 Boston Scientific Corporation Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue
CA2161688A1 (en) 1993-05-07 1994-11-24 Sdgi Holdings, Inc. Surgical cutting instrument
US6832996B2 (en) * 1995-06-07 2004-12-21 Arthrocare Corporation Electrosurgical systems and methods for treating tissue
US5364395A (en) 1993-05-14 1994-11-15 West Jr Hugh S Arthroscopic surgical instrument with cauterizing capability
US5395368A (en) 1993-05-20 1995-03-07 Ellman; Alan G. Multiple-wire electrosurgical electrodes
CA2164860C (en) 1993-06-10 2005-09-06 Mir A. Imran Transurethral radio frequency ablation apparatus
US5374188A (en) 1993-07-19 1994-12-20 Bei Medical Systems, Inc. Electro-surgical instrument and method for use with dental implantations
US5810857A (en) 1993-08-12 1998-09-22 Mackool; Richard J. Surgical knife for controlled lengthening of an incision
US5380280A (en) 1993-11-12 1995-01-10 Peterson; Erik W. Aspiration system having pressure-controlled and flow-controlled modes
US5787760A (en) 1993-11-24 1998-08-04 Thorlakson; Richard G. Method and foot pedal apparatus for operating a microscope
US5591127A (en) 1994-01-28 1997-01-07 Barwick, Jr.; Billie J. Phacoemulsification method and apparatus
US5465633A (en) 1994-02-07 1995-11-14 Johnson Fishing, Inc. Foot actuated trolling motor control
US5496339A (en) 1994-05-17 1996-03-05 Koepnick; Russell G. Universal automated keratectomy apparatus and method
US5584824A (en) 1994-06-08 1996-12-17 Syntec, Inc. Controlled vacuum cassette in ophthalmic retinal surgery
US5578040A (en) 1994-06-14 1996-11-26 Smith; Albert C. Ocular repair system and apparatus
US5527356A (en) 1994-08-02 1996-06-18 Syntec, Inc. Retinal plug
US5476448A (en) 1994-10-19 1995-12-19 Urich; Alex Apparatus for suppressing a vacuum surge in eye surgery
US5556397A (en) 1994-10-26 1996-09-17 Laser Centers Of America Coaxial electrosurgical instrument
US5624394A (en) 1994-10-28 1997-04-29 Iolab Corporation Vacuum system and a method of operating a vacuum system
US5527332A (en) 1994-11-02 1996-06-18 Mectra Labs, Inc. Tissue cutter for surgery
US5474532A (en) 1994-11-22 1995-12-12 Alcon Laboratories, Inc. Cutting blade for a vitreous cutter
DE19502305C2 (en) 1995-01-26 2002-01-17 Geuder Hans Gmbh Apparatus for aspirating lens debris in cataract surgery
US5868728A (en) 1995-02-28 1999-02-09 Photogenesis, Inc. Medical linear actuator for surgical delivery, manipulation, and extraction
US5566681A (en) 1995-05-02 1996-10-22 Manwaring; Kim H. Apparatus and method for stabilizing a body part
US6238391B1 (en) * 1995-06-07 2001-05-29 Arthrocare Corporation Systems for tissue resection, ablation and aspiration
US5814010A (en) 1995-08-08 1998-09-29 Allergan, Inc. Safety-vac capsule polisher
US5817034A (en) * 1995-09-08 1998-10-06 United States Surgical Corporation Apparatus and method for removing tissue
USD377524S (en) 1995-10-05 1997-01-21 Megadyne Medical Products, Inc. Insulated electrosurgical needle
DE19540439C2 (en) 1995-10-30 1999-04-22 Schwind Gmbh & Co Kg Herbert Device for corneal surgery
US6051009A (en) 1996-02-07 2000-04-18 Hellenkamp; Johann F. Automatic surgical device for cutting a cornea and a cutting blade assembly and control assembly
US5957921A (en) 1996-11-07 1999-09-28 Optex Ophthalmologics, Inc. Devices and methods useable for forming small openings in the lens capsules of mammalian eyes
US5941250A (en) 1996-11-21 1999-08-24 University Of Louisville Research Foundation Inc. Retinal tissue implantation method
US5916330A (en) 1997-01-15 1999-06-29 Ford Global Technologies, Inc. Cable operated releasable brake pedal assembly
FR2767054B1 (en) 1997-08-05 1999-09-10 Khalil Hanna SURGICAL APPARATUS FOR MAKING A LAMELLAR CUT OF THE CORNEA
EP0956841B1 (en) 1998-03-31 2006-03-15 Nidek Co., Ltd. Corneal surgical apparatus
FR2779943B1 (en) 1998-06-19 2000-11-10 Moria Sa ARTIFICIAL CHAMBER FOR SAMPLING A CORNEAL GRAFT
US6083236A (en) 1998-08-12 2000-07-04 Feingold; Vladimir Keratome method and apparatus
US5989272A (en) 1998-10-05 1999-11-23 Barron Precision Instruments L.L.C. Keratome for performing eye surgery and method for using same
US6245084B1 (en) * 1998-10-20 2001-06-12 Promex, Inc. System for controlling a motor driven surgical cutting instrument
US6019754A (en) 1998-10-29 2000-02-01 Kawesch; Glenn Method and apparatus for improving lasik flap adherence
US6165189A (en) 1999-02-10 2000-12-26 Sis, Ltd. Microkeratome for performing lasik surgery
DE60022413T2 (en) 1999-03-03 2006-01-19 Nidek Co., Ltd., Gamagori Operating device for the cornea

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812855A (en) * 1971-12-15 1974-05-28 Surgical Design Corp System for controlling fluid and suction pressure
US4678459A (en) * 1984-07-23 1987-07-07 E-Z-Em, Inc. Irrigating, cutting and aspirating system for percutaneous surgery
US5133713A (en) * 1990-03-27 1992-07-28 Huang Jong Khing Apparatus of a spinning type of resectoscope for prostatectomy
US5242404A (en) * 1992-02-12 1993-09-07 American Cyanamid Company Aspiration control system
US6013049A (en) * 1998-10-29 2000-01-11 Allergan Sales, Inc. Controlled outflow sleeve
US6086544A (en) * 1999-03-31 2000-07-11 Ethicon Endo-Surgery, Inc. Control apparatus for an automated surgical biopsy device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9913678B2 (en) 2005-07-18 2018-03-13 Tearscience, Inc. Methods, apparatuses, and systems for reducing intraocular pressure as a means of preventing or treating open-angle glaucoma
US9999710B2 (en) 2009-01-07 2018-06-19 Med-Logics, Inc. Tissue removal devices, systems and methods
KR20160003769A (en) * 2012-09-04 2016-01-11 매드-로직스 아이엔씨. Tissue removal devices, systems and methods
EP2892438A4 (en) * 2012-09-04 2016-04-27 Med Logics Inc Tissue removal devices, systems and methods
KR102226813B1 (en) 2012-09-04 2021-03-11 매드-로직스 아이엔씨. Tissue removal devices, systems and methods
US10441460B2 (en) 2013-04-26 2019-10-15 Med-Logics, Inc. Tissue removal devices, systems and methods
US11896524B2 (en) 2013-04-26 2024-02-13 Med-Logics, Inc. Tissue removal devices, systems and methods

Also Published As

Publication number Publication date
AU2001234726A1 (en) 2001-11-26
US20020151835A1 (en) 2002-10-17
US6428508B1 (en) 2002-08-06

Similar Documents

Publication Publication Date Title
US6428508B1 (en) Pulsed vacuum cataract removal system
US5674226A (en) Method and apparatus for tissue excision and removal by fluid jet
EP1832259B1 (en) Pulse amplitude manipulation for controlling a phacoemulsification surgical system
US5322504A (en) Method and apparatus for tissue excision and removal by fluid jet
US6884252B1 (en) Low frequency cataract fragmenting device
AU2008256911B2 (en) Systems and methods for transverse phacoemulsification
US6217543B1 (en) Removal of tissue
EP1700584B1 (en) Phacoemulsification tip
US8579929B2 (en) Torsional ultrasound hand piece that eliminates chatter
US10940039B2 (en) Automatic ultrasonic phacoemulsification control
CA2534416C (en) Phacoemulsification tip, apparatus and method for using same
US20080139994A1 (en) Torsional Ultrasound at Resonant Frequencies That Eliminate Chatter
JP2006021054A (en) Liquefaction handpiece
WO2001043675A1 (en) Method of controlling a liquefracture handpiece
WO2006101717A2 (en) Phacoemulsification tip
EP1682057B1 (en) Phacoemulsification needle
EP1852096A1 (en) Phacoemulsification tip
WO2006096335A2 (en) Phacoemulsification tip
US20230255827A1 (en) Piezo-driven agitator for the treatment of glaucoma and methods of use
US11576815B1 (en) Fragmentation and emulsification modes in a cataract surgical device
US20050159766A1 (en) Low frequency cataract fragmenting device
MXPA06001826A (en) Phacoemulsification tip
JPH07313517A (en) Equipment and method for extraction and removal of tissue byfluid jet

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP