CN101467909B - Transducer for ultrasound lithotripter in vivo - Google Patents
Transducer for ultrasound lithotripter in vivo Download PDFInfo
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- CN101467909B CN101467909B CN2008100067580A CN200810006758A CN101467909B CN 101467909 B CN101467909 B CN 101467909B CN 2008100067580 A CN2008100067580 A CN 2008100067580A CN 200810006758 A CN200810006758 A CN 200810006758A CN 101467909 B CN101467909 B CN 101467909B
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- 238000001727 in vivo Methods 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000000919 ceramic Substances 0.000 claims abstract description 23
- 239000004575 stone Substances 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
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- 229920001971 elastomer Polymers 0.000 claims description 16
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- 238000007906 compression Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
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- 239000000956 alloy Substances 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 244000208734 Pisonia aculeata Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 229910052689 Holmium Inorganic materials 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 238000009212 extracorporeal shock wave lithotripsy Methods 0.000 description 4
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 208000000913 Kidney Calculi Diseases 0.000 description 3
- 206010029148 Nephrolithiasis Diseases 0.000 description 3
- 208000006568 Urinary Bladder Calculi Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
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- 208000031868 Calculus ureteric Diseases 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 208000000014 Ureteral Calculi Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
Abstract
The invention relates to an energy converter applied to an intracorporal ultrasonic lithotripter. The energy converter comprises a stainless steel needle tubing, a connector, an elastic tube, an amplitude transformer, a piezoelectric ceramic plates, a pullback weight, a hold-down bolt, housing, an O type sealing ring of a gas pipe connection, the gas pipe connection, a stone absorbing guide pipe, an insulating sleeve, a electrode plate, a cone cap, conducting wires, a conducting wire connector cap and a conducting wire connector base; the conducting wire connector base on the top of the housing and the conducting wire connector cap are positioned off the axis; a commutator is provided on the top of the hold-down bolt in the housing, the commutator has a four-way structure, the front end of the center through hole of the commutator in the axial direction is communicated with the stone absorbing guide pipe, and the back end of the center through hole is connected with the top end of the housing; the commutator corresponds to the conducting wire connector base and the conducting wire connector cap thereon, a peripheral through hole is provided off the axis in the axial direction and the upper end is communicated with the conducting wire connector base; two radial through holes are provided off the axis in the radial direction on the commutator.
Description
Technical field
The present invention relates to the field of ultrasonic transducer, particularly relate to a kind of transducer in the ultrasound lithotripter in the body that is applied to.
Background technology
For general renal calculus, ureteral calculus and vesical calculus, can adopt the extracorporeal shock-wave lithotripsy (ESWL) method to carry out rubble, or adopt method rubbles such as medical holmium laser, medical neodymium laser, pneumatic ballistic lithotripsy.Extracorporeal shock-wave lithotripsy (ESWL), ultrasonic rubble are only effective to about 15% frangible microlith.Medical holmium laser, medical neodymium laser and pneumatic ballistic lithotripsy can solve about 80% calculus patient's a treatment difficult problem.These Therapeutic Method are undertaken by cystoscope, ureter soft lens, and the treatment end of laser fiber or equipment arrives at stone location by urethra, by laser energy or pneumatic ballistic lithotripsy energy, calculus are smashed then.More than this several method all need not to operate on, to the human zero damage or damage minimumly, be that most calculus such as renal calculus, ureteral calculus and vesical calculus patient are ready the Therapeutic Method accepted.Shortcoming be above-mentioned Therapeutic Method to part renal calculus, especially obstinate hard kidney inferior calyx calculus and vesical calculus are usually powerless, and when treatment can only rubble, can not clear then and there stone, stay the hidden danger that recurrence of hepatolithiasis and rubble stop up urinary tract.Rubble is a kind of technology of the calculus of minimally-invasive treatment preferably in the Ultrasonographic, the general rubble probe that adopts hollow, cooperate negative pressure of vacuum to attract equipment, when calculus being smashed with ultrasound wave, utilize negative pressure that the calculus sucking-off is external, realize the therapeutic purposes of the clear stone of rubble, the benefit of this method is that stone is thorough, general two days of treatment back just can rehabilitation, and is not easy to recur.The company that produces this ultrasonic rock crushing plant at present is few, mainly contains the R-Wolf company of Germany and the EMS company of Switzerland, and the rock crushing plant of this two company all has weak point again.
Wherein, the structure of the equipment of Wolf roughly as shown in Figure 1, ultrasonic rubble transducer in this body comprises: rustless steel needle tubing 1, union joint 2, union joint O type sealing ring 3, elastic tube 4, horn 5, horn O type sealing ring 6, piezoelectric ceramic piece 7, counterweight 9, hold-down bolt 10, shell 11, sleeve O type sealing ring 12, gas-tpe fitting O type sealing ring 16, gas-tpe fitting 17, hold-down bolt O type sealing ring 19, suction stone conduit 20, insulated sleeve 21, electrode slice 22, cone medicated cap 23, lead 24, conductor interface medicated cap 25, conductor interface seat 26.Because between shell and counterweight, the horn etc. is the crimping of simple O type ring, horn also is the general copper alloy material of performance, so its mechanical quality factor is lower, the amplitude amplification is also less, and ultrasonic rubble ability is significantly weakened; Add the interface that is not equipped with air pressure trajectory and rock crushing plants such as holmium laser, neodymium laser, volume is big when running into, the harder calculus of quality just seems powerless.
Though the equipment of EMS has passed through the improvement of several generations, realized ultrasonic and the ballistic combination of air pressure, but operation is not very convenient in its art, negative pressure intensity can only be in vacuum suction equipment adjusted, the patient can't arbitrary control suction size, and when probe contacts soft tissue because of carelessness, release in time, both can cause needle tubing obstruction, transducer heating, easily bodily tissue damaged again.
Summary of the invention
The objective of the invention is to: the ultrasonic lithotrite rubble ability that solves ultrasonic rubble transducer in the existing body, big or small calculus attraction smashes and is not easy operation to difference, and owing to be drawn onto the needle tubing blocking problem that soft tissue causes, thereby a kind of transducer in the ultrasound lithotripter in the body that is applied to is provided.
A kind of transducer in the ultrasound lithotripter in the body that is applied to provided by the invention comprises: rustless steel needle tubing 1, union joint 2, union joint O type sealing ring 3, elastic tube 4, horn 5, horn O type sealing ring 6, piezoelectric ceramic piece 7, counterweight 9, hold-down bolt 10, shell 11, gas-tpe fitting O type sealing ring 16, gas-tpe fitting 17, hold-down bolt O type sealing ring 19, suction stone conduit 20, insulated sleeve 21, electrode slice 22, cone medicated cap 23, lead 24, conductor interface medicated cap 25, conductor interface seat 26; It is characterized in that, the conductor interface seat 26 on described shell 11 tops and on conductor interface medicated cap 25, be located at the position of the axis that departs from shell 11; The top that is positioned at hold-down bolt 10 in the described shell 11 also includes transducer 18, and this transducer 18 is the four-way structure, and the front end of the central through hole that it is axial is communicated with inhales stone conduit 20, and the rear end of this central through hole is fixedly connected on the top of shell 11; Described transducer 18 corresponding to conductor interface seat 26 and on conductor interface medicated cap 25, be provided with peripheral through hole vertically in the position of off-axis, its upper end is communicated with conductor interface seat 26, is used to hold lead; Described transducer 18 departs from peripheral through hole and radially offers two radial direction through hole, is respectively applied for to be communicated with Pressure Regulation Exhaust valve 13 and gas-tpe fitting 17, and the junction of gas-tpe fitting 17 and transducer 18 is pressed with gas-tpe fitting O type sealing ring 16.
As a kind of improvement of the present invention, the rear end of described central through hole can connect corresponding air pressure trajectory or laser lithotripsy device; Or the bonnet 15 that has been threaded, and between rear end and bonnet, be pressed with sealing gasket 14.
As another improvement of the present invention, described Pressure Regulation Exhaust valve 13 comprises needle valve body, needle-valve spool, exhasut valve stem, aerofluxus bonnet, compression spring and the O type rubber ring of coaxial setting; Described needle valve body is cylindrical, and its outer surface is provided with and is used for the screw thread that is connected with tee T on the extraneous gas piping; The lower end of this needle valve body is arranged with O type rubber ring, by compressing the sealing between this O type rubber ring assurance needle valve body and the tee T; Described needle-valve spool is roughly T-shaped, from top to bottom is sheathed in the described needle valve body; The outer surface on described needle-valve spool top and the upper inside surface of described needle valve body are threaded, leave the gap between the outer surface of described needle-valve spool bottom and the lower inner surface of described needle valve body, described needle-valve spool and described needle valve body lower port cooperation place are taper seat; Described needle-valve spool is a hollow, and the inner surface of needle-valve spool bottom is provided with flange, is used for being slidingly matched with exhasut valve stem; Described needle-valve spool bottom also offers two radial holes, and these two radial holes lay respectively at the upside and the downside of flange; Described exhasut valve stem is inverted T-shaped, is sheathed on from the bottom to top in the described needle-valve spool, and the gap location between needle-valve spool and exhasut valve stem top is arranged with the compression spring, and the lower end of this compression spring is butted on the formed shoulder hole of flange; Be provided with O type rubber ring between the spacing end face of the following end in contact of the flange of this exhasut valve stem lower end and needle-valve spool; Described aerofluxus bonnet is by being threaded in the top of exhasut valve stem, and the centre of the lower surface of this aerofluxus bonnet offers the circular groove that is used to be nested with the compression spring, and the lower surface of this aerofluxus bonnet radially is provided with groove and is communicated with circular groove.
As further improvement of the present invention, the longitudinal section of the upper end of described needle-valve spool is H shape, and its upper surface is spacing as the step of aerofluxus bonnet.The radial groove in the lower surface of described aerofluxus bonnet is cross.
As another improvement of the present invention, the diameter of described counterweight 9 is than the big 1～3mm of diameter of piezoelectric ceramics sheet.The length of described rustless steel needle tubing 1 is 380～440mm.
As another kind of improvement the of the present invention, described piezoelectric ceramic piece 7 is more than two, accompanies electrode slice 22 between every adjacent two piezoelectric ceramic pieces.
As another kind of improvement the of the present invention, also be arranged with sleeve 8 between described shell 11 and the counterweight 9, this sleeve is the polyflon material, its two ends are connected with O type sealing ring.
The invention has the advantages that: ultrasonic rubble transducer in a kind of body provided by the invention, owing to adopted high performance piezoceramic material, rational assembly technology, effectively reduced the impedance of transducer, the caloric value of transducer is significantly reduced, the inner suction stone conduit that adopts metal can more be taken away the heat that piezoelectric ceramics produces, and guarantees the isoparametric concordance of transducer frequency impedance in the use.Wherein,
Horn of the present invention adopts titanium alloy material, and it is to ultransonic conduction with to the amplification of amplitude, far above as other metal materials such as copper alloys.Horn among the present invention is to use the horn of the exponential curve profile of precise numerical control machine processing, and the existing good anti-mechanical fatigue performance of the horn of this profile can effectively raise the amplification of amplitude again.
The present invention is between shell and the core body be made up of counterweight, pottery, horn, the sleeve that has added poly-PTFE, the sleeve two ends are pressed with O type ring, and this structure can effectively reduce ultrasonic conduction to shell, and can significantly reduce the low-frequency vibration that inner vibrations are supervened.All the other core bodys and surgery and coupling part touch the O type ring that the silicone rubber material is also all adopted at the position, make whole energy transducer have higher mechanical quality factor, can smash harder calculus effectively.
Simultaneously, this transducer also has been equipped with trajectory rubble interface, can use mode ultrasonic and that trajectory combines to treat to the superhard calculus of super large, and this interface also is applicable to laser lithotripsy equipment such as holmium laser and neodymium laser.
In addition, another innovative point of the present invention is that the Pressure Regulation Exhaust valve has been installed in the transducer handle rear end, solve the adjusting of adsorptive pressure in the art and be drawn onto the problem that soft tissue stops up needle tubing, injury human organ easily, make the rubble operation technique more convenient easily, also more safe and reliable.
Description of drawings
Fig. 1 is the interior ultrasonic rubble transducer architecture sketch map of the body of R-Wolf company in the prior art;
Fig. 2 is a ultrasonic rubble transducer architecture sketch map in the body of the present invention;
Fig. 3 is the cut-away view of Fig. 2 along the transducer cable lead portion of B-B line;
Fig. 4 is the cut-away view of Fig. 2 along the transducer radial direction through hole of A-A line;
Fig. 5 is the structure cut-away view of Pressure Regulation Exhaust valve of the present invention;
Fig. 6 is the three-dimensional exploded view of the structure of Pressure Regulation Exhaust valve of the present invention;
The structural representation of the needle-valve spool of Fig. 7 a～d Pressure Regulation Exhaust valve of the present invention;
The structural representation of the aerofluxus bonnet of Fig. 8 a～d Pressure Regulation Exhaust valve of the present invention.
The accompanying drawing sign
1, rustless steel needle tubing 2, union joint 3, union joint O type ring
4, elastic tube 5, horn 6, horn O type ring
7, piezoelectric ceramic piece 8, sleeve 9, counterweight
10, hold-down bolt 11, shell 12, sleeve O type ring
13, Pressure Regulation Exhaust valve 14, sealing gasket 15, bonnet
16, gas-tpe fitting O type ring 17, gas-tpe fitting 18, adapter
19, hold-down bolt O type ring 20, suction stone conduit 21, insulated sleeve
22, electrode slice 23, cone medicated cap
24, lead 25, conductor interface medicated cap 26, conductor interface seat
131, needle-valve spool 132, needle valve body 133, tee pipe coupling
134, aerofluxus bonnet 135, compression spring 136, exhasut valve stem
137, exhaust valve 138, sealing O type circle
The specific embodiment
Shown in Fig. 2～4, the transducer that is applied in the interior ultrasound lithotripter of body of the present invention is by rustless steel needle tubing 1, union joint 2, union joint O type ring 3, elastic tube 4, horn 5, horn O type ring 6, piezoelectric ceramic piece 7, sleeve 8, counterweight 9, hold-down bolt 10, shell 11, sleeve O type ring 12, Pressure Regulation Exhaust valve 13, sealing gasket 14, bonnet 15, gas-tpe fitting O type ring 16, gas-tpe fitting 17, adapter 18, hold-down bolt O type ring 19, inhale stone conduit 20, insulated sleeve 21, electrode slice 22, cone medicated cap 23, lead 24, conductor interface medicated cap 25, conductor interface seat 26 constitutes.
Wherein, described rustless steel needle tubing 1 is the elongated stainless steel tube of hollow, union joint 2 is that an end is that conical, the other end is that cylindrical, cylinder has screw thread, integral shaft to the structure that a manhole is arranged, in conical end and rustless steel needle tubing 1 coaxial welding together, be connected by the external screw thread of cylindrical end and the female thread of horn 5 awl ends, elastic tube 4 is in the inside of horn 5, be clipped between union joint 2 and the suction stone conduit 20, wherein elastic tube 4 is the polytetrafluoroethylplastic plastic pipe, and inhaling stone conduit 20 is thin-wall stainless steel; Described piezoelectric ceramic piece 7 can be more than two or two, accompany electrode slice 22 between per two, horn 5 and counterweight 9 are clipped in the middle piezoelectric ceramic piece 7, hold-down bolt 10 passes counterweight 9, piezoelectric ceramic piece 7 and electrode slice 22, be connected with horn 5, hold-down bolt 10 axially is a through hole, inhaling stone conduit 20 passes wherein, insert the axial through hole of adapter 18, be pressed with hold-down bolt O type ring 19 between hold-down bolt 10 and the adapter 18, the part that hold-down bolt 10 passes piezoelectric ceramic piece 7 and electrode slice 22 is with insulated sleeve 21; Described adapter 18 is the four-way structure, radial two holes connect Pressure Regulation Exhaust valve 13 and gas-tpe fitting 17 respectively, wherein the junction with gas-tpe fitting 17 is pressed with gas-tpe fitting O type ring 16, axial forward end connects inhales stone conduit 20, the rear end bonnet 15 that has been threaded is pressed with sealing gasket 14 between the two; Shell 11 and cone medicated cap 23 are for being threaded, be lined with union joint O type ring 3 between cone medicated cap 23 awl end inside and the horn 5 awl end outsides, cone medicated cap 23 is the inner and bigger end of horn 5 diameters outside than larger diameter end, the position at whole energy transducer node place just, between be pressed with horn O type ring 6, sleeve 8 is enclosed between shell 11 and the counterweight 9, and is pressed with sleeve O type ring 12 between the adapter 18, and the other end contacts with horn O type ring 6 pressure.
In above-mentioned technical scheme, the operating frequency of described transducer is 23～28kHz; The amplification of described horn is about 10～16 times; The terminal amplitude of described rustless steel needle tubing is 40～100um; Shell is the fire resistant resin material, and sleeve is the polyflon material, and the O type ring at two ends is a silastic material, and the three guarantees the piezoelectric ceramics that it is inner and the insulation and the sealing of electrode slice and external shell; Whole device promptly can fumigation under 125 degrees celsius, also can be in disinfectant solution under the normal pressure soaking disinfection.
In this example, piezoelectric ceramic piece 7 is two, accompany electrode slice 22 between two, horn 5 and counterweight 9 are clipped in the middle piezoelectric ceramic piece 7 and electrode slice 22, hold-down bolt 10 passes counterweight 9, piezoelectric ceramic piece 7 and electrode slice 22, is connected with horn 5, and on the contact surface of horn 5, counterweight 9, piezoelectric ceramic piece 7 and electrode slice 22 etc., all scribble coupling glue, after hold-down bolt 10 compresses, can obtain lower impedance and suitable frequency.Hold-down bolt 10 axially is a through hole, inhales stone conduit 20 and passes wherein, inserts the axial through hole of adapter 18, and the part that hold-down bolt 10 passes piezoelectric ceramic piece 7 and electrode slice 22 is with insulated sleeve 21.Adapter 18 is the four-way structure, and radial two holes connect Pressure Regulation Exhaust valve 13 and gas-tpe fitting 17 respectively, and wherein the junction with gas-tpe fitting 17 is pressed with gas-tpe fitting O type ring 16, and the rear end bonnet 15 that has been threaded is pressed with sealing gasket 14 between the two; After bonnet 15 and sealing gasket 14 took off, adapter 18 can connect corresponding air pressure trajectory or laser lithotripsy device.Rustless steel needle tubing 1 is in the same place with union joint 2 coaxial welding, be connected by the female thread of the external screw thread on the union joint 2 with horn 5 awl ends, elastic tube 4 is in the inside of horn 5, be clipped between union joint 2 and the suction stone conduit 20, shell 11 and cone medicated cap 23 are for being threaded, be lined with union joint O type ring 3 between cone medicated cap 23 awl end inside and the horn 5 awl end outsides, cone medicated cap 23 is the inner and bigger end of horn 5 diameters outside than larger diameter end, the position at whole energy transducer node place just, between be pressed with horn O type ring 6, sleeve 8 is enclosed between shell 11 and the counterweight 9, and is pressed with sleeve O type ring 12 between the adapter 18, and the other end contacts with horn O type ring 6 pressure.
The present invention also provides a kind of barometric control unit-Pressure Regulation Exhaust valve that is used on the gas piping, combinative structure by a kind of adjust blood pressure needle-valve and rapid escape valve, overcome singlehanded difficulty of operating adjust blood pressure needle-valve and air bleeding valve simultaneously, be used for the adjust blood pressure and the aerofluxus fast of vacuum suction pipeline.
Shown in Fig. 5～8, described Pressure Regulation Exhaust valve is by O type rubber ring 138, exhasut valve stem 136, needle-valve spool 131, needle valve body 132, aerofluxus bonnet 134 and compression spring 135 are formed, exhasut valve stem 136 and aerofluxus bonnet 134 are by being threaded, compression spring 135 is enclosed within on the exhasut valve stem 136, pass the endoporus of needle-valve spool 131, O type rubber ring is arranged between exhasut valve stem 136 and the needle-valve spool 131, needle-valve spool 131 and needle valve body 132 are directly by being threaded, the cooperation place, lower end is a taper seat, needle valve body 132 outer surfaces are useful on and the extraneous screw thread of installing, and an end of needle valve body 132 is with O type rubber ring 138.An axial shoulder hole is arranged, two radial holes on the needle-valve spool 131.And have a following characteristics: 1, keep sealing with O type rubber ring between exhasut valve stem 136 and the needle-valve spool 131, needle valve body 132 and extraneous pipeline guarantee to seal by compressing O type rubber ring 138 by being threaded.Keep sealing by O type rubber ring 138 between needle-valve spool 131 and spacing end face that exhasut valve stem 136 contacts.2, all parts are assemblied on the same axis.3, needle-valve spool 1 axially has a shoulder hole, and exhasut valve stem 136 is by this shoulder hole, in the aperture less place both radially slide cooperation, and have step spacing at end face.4, needle-valve spool 131 has two radial holes, gas was from the gap between needle-valve spool 131 and the needle valve body 132 when system's malleation was regulated, radial hole on needle-valve spool 131 flows out by shoulder hole axial on the needle-valve spool 131 again, and is opposite when gas flow was with malleation when system's negative pressure was regulated.
The top of needle valve body of the present invention and needle-valve spool is to be threaded, counterclockwise turn needle-valve spool when using, can separate relatively in the axial direction between the two, the conical surface place of lower end forms annular gap, the distance decision that the size in gap is axially separated by both, the so just adjusting of the pressure of realizing; The needle-valve spool serves as the effect of rapid escape valve body simultaneously.Its advantage is that the total of barometric control unit is installed on the vacuum suction pipeline by the screw thread on the needle valve body, guarantees sealing with O type rubber ring.When needs are regulated pipeline air pressure, turn needle-valve spool, needle-valve is opened, and ambient atmos enters pipeline via two radial holes on the needle-valve spool; When the quick aerofluxus of needs, press the aerofluxus bonnet, drive exhasut valve stem, make O type rubber ring leave the lower surface of needle-valve spool, realize quick aerofluxus, unclamp the aerofluxus bonnet, under the effect of compression spring, the moving exhasut valve stem of air bleeding valve hatband resets; And the present invention is simple in structure, compact, is easy to processing, cleaning for convenience detach, and the Pressure Regulation Exhaust action is singlehanded just can be realized.
Claims (10)
1. one kind is applied to the transducer in the ultrasound lithotripter in the body, comprising: rustless steel needle tubing (1), union joint (2), union joint O type sealing ring (3), elastic tube (4), horn (5), horn O type sealing ring (6), piezoelectric ceramic piece (7), counterweight (9), hold-down bolt (10), shell (11), gas-tpe fitting O type sealing ring (16), gas-tpe fitting (17), hold-down bolt O type sealing ring (19), inhale stone conduit (20), insulated sleeve (21), electrode slice (22), cone medicated cap (23), lead (24), conductor interface medicated cap (25), conductor interface seat (26);
It is characterized in that,
The conductor interface seat (26) on described shell (11) top and on conductor interface medicated cap (25), be located at the position of departing from shell (11) axis;
The top that is positioned at hold-down bolt (10) in the described shell (11) also includes transducer (18), this transducer (18) is the four-way structure, the front end of the central through hole that it is axial is communicated with inhales stone conduit (20), and the rear end of this central through hole is fixedly connected on the top of shell (11); Described transducer (18) corresponding to conductor interface seat (26) and on conductor interface medicated cap (25), be provided with peripheral through hole vertically in the position of off-axis, its upper end is communicated with conductor interface seat (26), is used to hold lead; Described transducer (18) departs from peripheral through hole and radially offers two radial direction through hole, is respectively applied for to be communicated with Pressure Regulation Exhaust valve (13) and gas-tpe fitting (17), and the junction of gas-tpe fitting (17) and transducer (18) is pressed with gas-tpe fitting O type sealing ring (16).
2. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that the rear end of described central through hole can connect corresponding air pressure trajectory or laser lithotripsy device; Or the bonnet that has been threaded (15), and between rear end and bonnet, be pressed with sealing gasket (14).
3. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that described Pressure Regulation Exhaust valve (13) comprises needle valve body, needle-valve spool, exhasut valve stem, aerofluxus bonnet, compression spring and the O type rubber ring of coaxial setting;
Described needle valve body is cylindrical, and its outer surface is provided with and is used for the screw thread that is connected with tee T on the extraneous gas piping; The lower end of this needle valve body is arranged with O type rubber ring, by compressing the sealing between this O type rubber ring assurance needle valve body and the tee T;
Described needle-valve spool is roughly T-shaped, from top to bottom is sheathed in the described needle valve body; The outer surface on described needle-valve spool top and the upper inside surface of described needle valve body are threaded, leave the gap between the outer surface of described needle-valve spool bottom and the lower inner surface of described needle valve body, described needle-valve spool and described needle valve body lower port cooperation place are taper seat; Described needle-valve spool is a hollow, and the inner surface of needle-valve spool bottom is provided with flange, is used for being slidingly matched with exhasut valve stem; Described needle-valve spool bottom also offers two radial holes, and these two radial holes lay respectively at the upside and the downside of flange;
Described exhasut valve stem is inverted T-shaped, is sheathed on from the bottom to top in the described needle-valve spool, and the gap location between needle-valve spool and exhasut valve stem top is arranged with the compression spring, and the lower end of this compression spring is butted on the formed shoulder hole of flange; Be provided with O type rubber ring between the spacing end face of the following end in contact of the flange of this exhasut valve stem lower end and needle-valve spool;
Described aerofluxus bonnet is by being threaded in the top of exhasut valve stem, and the centre of the lower surface of this aerofluxus bonnet offers the circular groove that is used to be nested with the compression spring, and the lower surface of this aerofluxus bonnet radially is provided with groove and is communicated with circular groove.
4. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 3 is characterized in that the longitudinal section of the upper end of described needle-valve spool is H shape, and its upper surface is spacing as the step of aerofluxus bonnet.
5. describedly be applied to the transducer in the ultrasound lithotripter in the body according to claim 3 or 4, it is characterized in that the radial groove in the lower surface of described aerofluxus bonnet is cross.
6. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that the diameter of described counterweight (9) is than the big 1～3mm of diameter of piezoelectric ceramics sheet.
7. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that the length of described rustless steel needle tubing (1) is 380～440mm.
8. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that described piezoelectric ceramic piece (7) is more than two, accompanies electrode slice (22) between every adjacent two piezoelectric ceramic pieces.
9. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that also be arranged with sleeve (8) between described shell (11) and the counterweight (9), this sleeve is the polyflon material, and its two ends are connected with O type sealing ring.
10. the transducer that is applied in the interior ultrasound lithotripter of body according to claim 1 is characterized in that described horn adopts titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100067580A CN101467909B (en) | 2007-12-28 | 2008-01-31 | Transducer for ultrasound lithotripter in vivo |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710304461 | 2007-12-28 | ||
| CN200710304461.8 | 2007-12-28 | ||
| CN2008100067580A CN101467909B (en) | 2007-12-28 | 2008-01-31 | Transducer for ultrasound lithotripter in vivo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101467909A CN101467909A (en) | 2009-07-01 |
| CN101467909B true CN101467909B (en) | 2011-02-02 |
Family
ID=40248596
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100067580A Active CN101467909B (en) | 2007-12-28 | 2008-01-31 | Transducer for ultrasound lithotripter in vivo |
| CNU200820004344XU Expired - Lifetime CN201179091Y (en) | 2007-12-28 | 2008-01-31 | Energy converter applied in ultrasonic crush stone instrument in vivo |
| CN2008100851639A Active CN101467910B (en) | 2007-12-28 | 2008-03-24 | In vivo ultrasound lithotripter |
| CNU2008201074036U Expired - Lifetime CN201179093Y (en) | 2007-12-28 | 2008-03-26 | Ultrasonic lithoriptor in vivo |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820004344XU Expired - Lifetime CN201179091Y (en) | 2007-12-28 | 2008-01-31 | Energy converter applied in ultrasonic crush stone instrument in vivo |
| CN2008100851639A Active CN101467910B (en) | 2007-12-28 | 2008-03-24 | In vivo ultrasound lithotripter |
| CNU2008201074036U Expired - Lifetime CN201179093Y (en) | 2007-12-28 | 2008-03-26 | Ultrasonic lithoriptor in vivo |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN101467909B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467909B (en) * | 2007-12-28 | 2011-02-02 | 北京奥麦特科技有限公司 | Transducer for ultrasound lithotripter in vivo |
| CN101869499B (en) * | 2009-04-27 | 2012-02-08 | 宋源 | Perturbed single-conduit surgical instrument |
| CN101884566B (en) * | 2010-03-19 | 2012-02-01 | 张毓笠 | Ultrasonic integrated surgical system |
| CN101897612B (en) * | 2010-09-02 | 2013-09-18 | 邵俐丽 | Combined intracavitary stone breaker |
| CN102670278B (en) * | 2011-03-11 | 2015-07-15 | 苏州生物医学工程技术研究所 | Holmium laser ultrasonic comprehensive lithotripsy treatment system |
| CN102429701A (en) * | 2011-11-01 | 2012-05-02 | 福州施可瑞光电科技有限公司 | Ultrasonic stone crushing method and ultrasonic stone crushing pincers |
| CN103720492B (en) * | 2012-10-15 | 2016-09-07 | 北京速迈医疗科技有限公司 | A kind of ultrasonic attraction surgery systems that can precisely manipulate |
| CN103042281B (en) * | 2012-12-29 | 2016-01-27 | 苏州市职业大学 | Based on the ultrasonic edm Compound Machining oscillator of Hybrid transducer mode |
| CN102974906B (en) * | 2012-12-29 | 2016-03-02 | 苏州市职业大学 | Based on the ultrasonic edm Compound Machining oscillator of longitudinal vibration mode |
| CN104739458B (en) * | 2013-12-26 | 2017-03-15 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic cut hemostatic cutter, ultrasonic cut hemostatic system |
| CN104055620B (en) * | 2014-07-02 | 2016-03-30 | 以诺康医疗科技（苏州）有限公司 | Safety economy type ultrasonic emulsification syringe needle |
| CN104473674B (en) * | 2014-12-11 | 2017-03-08 | 武汉浩宏科技有限公司 | Stone crusher in a kind of many power body |
| CN106725741B (en) * | 2017-02-28 | 2019-08-27 | 重庆西山科技股份有限公司 | The sampling apparatus and ultrasonic surgical systems of ultrasonic transducer |
| CN109009331B (en) * | 2018-08-08 | 2024-02-06 | 北京安和加利尔科技有限公司 | Ultrasonic operation integrated knife |
| CN110246563A (en) * | 2019-06-14 | 2019-09-17 | 合肥大族科瑞达激光设备有限公司 | Holmium laser therapy equipment |
| CN110623728B (en) * | 2019-10-28 | 2021-04-20 | 中山大学孙逸仙纪念医院 | Automatic pressure regulating type stone crushing and removing system |
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| US4561438A (en) * | 1982-03-04 | 1985-12-31 | Richard Wolf Gmbh | Piezoelectric transducer with curved shafts |
| CN1085415A (en) * | 1993-06-11 | 1994-04-20 | 张建华 | Portable external ultrasonic lithotriptor |
| CN201179091Y (en) * | 2007-12-28 | 2009-01-14 | 北京奥麦特科技有限公司 | Energy converter applied in ultrasonic crush stone instrument in vivo |
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| CN1035229C (en) * | 1991-03-09 | 1997-06-25 | 中国人民解放军空军工程学院 | Ultrasonic tooth-cleaning machine |
| CN1073453C (en) * | 1996-12-27 | 2001-10-24 | 中国科学院声学研究所 | In vitro supersonic therapeutical instrument for medical purpose |
| US6569109B2 (en) * | 2000-02-04 | 2003-05-27 | Olympus Optical Co., Ltd. | Ultrasonic operation apparatus for performing follow-up control of resonance frequency drive of ultrasonic oscillator by digital PLL system using DDS (direct digital synthesizer) |
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2008
- 2008-01-31 CN CN2008100067580A patent/CN101467909B/en active Active
- 2008-01-31 CN CNU200820004344XU patent/CN201179091Y/en not_active Expired - Lifetime
- 2008-03-24 CN CN2008100851639A patent/CN101467910B/en active Active
- 2008-03-26 CN CNU2008201074036U patent/CN201179093Y/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561438A (en) * | 1982-03-04 | 1985-12-31 | Richard Wolf Gmbh | Piezoelectric transducer with curved shafts |
| CN1085415A (en) * | 1993-06-11 | 1994-04-20 | 张建华 | Portable external ultrasonic lithotriptor |
| CN201179091Y (en) * | 2007-12-28 | 2009-01-14 | 北京奥麦特科技有限公司 | Energy converter applied in ultrasonic crush stone instrument in vivo |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201179093Y (en) | 2009-01-14 |
| CN101467909A (en) | 2009-07-01 |
| CN101467910A (en) | 2009-07-01 |
| CN101467910B (en) | 2010-09-29 |
| CN201179091Y (en) | 2009-01-14 |
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