US20140371707A1 - Method and device for insertion of tubing into irrigation and infusion fluid pumps - Google Patents
Method and device for insertion of tubing into irrigation and infusion fluid pumps Download PDFInfo
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- US20140371707A1 US20140371707A1 US14/280,643 US201414280643A US2014371707A1 US 20140371707 A1 US20140371707 A1 US 20140371707A1 US 201414280643 A US201414280643 A US 201414280643A US 2014371707 A1 US2014371707 A1 US 2014371707A1
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- tubing
- pump
- slot
- connector
- connectors
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- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0202—Enemata; Irrigators with electronic control means or interfaces
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
- A61M3/0258—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped by means of electric pumps
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/12—Tube connectors; Tube couplings for joining a flexible tube to a rigid attachment
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1414—Hanging-up devices
- A61M5/1418—Clips, separators or the like for supporting tubes or leads
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
-
- 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
- A61M2207/00—Methods of manufacture, assembly or production
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
- A61M3/0216—Pressure
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
- A61M3/022—Volume; Flow rate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- This specification generally relates to embodiments for delivering fluids to patients.
- Medical diagnostic and therapeutic procedures often involve delivering fluids to patients. For example, procedures affecting subcutaneous or internal tissues often utilize catheters to access these tissues. There are many other medical procedures involving delivery of fluids to patients including delivery of medications, nutrients, anesthetic agents, and diagnostic agents. Examples of procedures utilizing catheters include delivery of medicines to tissue sites, measurement of tissue electrical and mechanical properties, imaging of tissues and ablation of tissues. These procedures may use catheters which require the delivery of fluids to these tissues or the circulation of fluids within the catheter.
- FIG. 1 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps.
- FIG. 2 shows an embodiment of the tubing being inserted into an irrigation and infusion fluid pump, using the device of FIG. 1 .
- FIG. 3 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps having connectors, in which the connectors are not attached to the pump.
- FIG. 4 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps in which the connectors are attached to the pump.
- FIGS. 5A and 5B show an embodiment of the guides and supports of the connectors of FIGS. 3 and 4 .
- FIGS. 6A and 6B show an embodiment of the manner in which the connectors of FIGS. 4 and FIGS. 5A and 5B provide support for the tubing.
- FIGS. 7A and 7B show an embodiment in which the tubing is permanently attached (e.g., glued) to the connector, but the connector is not permanently attached to the pump mechanism.
- FIGS. 8A-8D show an embodiment having enlarged tubing slots in the area where the tubing passes by the sensors.
- FIGS. 9A and 9B show an embodiment of mounting the sensors in the pump receptacle such that a small amount of vertical movement allows the sensors' tubing slots to align with the tubing attached to the connector during the insertion or extraction of the tubing.
- pumps are used to deliver fluid to these catheters for irrigation or infusion purposes.
- ablation catheters may use fluid to provide cooling of the catheter tip or adjacent tissues.
- the fluid may be circulated in a loop enclosed within the catheter, often referred to as closed loop cooling, or delivered into the heart's chambers, often referred to as open irrigation, where the fluid is mixed with blood.
- the pump is required to deliver this fluid, typically sterile saline, in a controlled and safe manner.
- the saline is typically supplied from bags connected to tubing that is inserted into the pump mechanism.
- the pumping method is typically a peristaltic style that moves the fluid by successive compression and relaxation of the tubing, causing the fluid to be pushed through the tubing into the catheter.
- the pump device typically contains sensors to detect the presence of air bubbles in the fluid, which could pose a safety risk to the patient. Additional types of sensors may be used to detect other fluid properties including pressure, velocity, flow rate, composition, optical, and electrical characteristics.
- the tubing In order for the sensors to function properly, the tubing must fit snuggly into the sensor slots such that there is intimate contact between the walls of the sensors and the wall of the tubing.
- the sensors In order to secure the tubing in the sensors, the sensors are typically designed with slots that are 0.030′′ to 0.050′′smaller than the tubing outside diameter and may have an entrance slot that is even smaller to act as a retainer for the tubing. This tight fit of the tubing into the sensors requires users to elongate the tubing prior to insertion and then to push the tubing into the sensor slots, attempting to fully insert the tubing by this method. This process is subject to user technique and can often lead to partially inserted tubing and complaints by users regarding the difficulty of tubing insertion.
- This specification describes devices that improve the ease and reliability of tubing insertion into medical irrigation and infusion fluid pumps and particularly the insertion of tubing into sensor slots on the pumps.
- Embodiment 1 of the invention comprises of a hinged door on the pump mechanism with guides and supports that align with the sensor openings intended for tubing insertion ( FIGS. 1 and 2 ).
- the user With the door open, the user positions the tubing at the entrance to the sensor slots using guides on either side(s) of the sensor(s) to retain the tubing in the proper position.
- the tubing is retained by guides on the door. The user then closes the door.
- the guides and supports on the door engage the tubing along its length and apply uniform pressure across the length of the tubing that fits into the sensors.
- the door's design provides mechanical leverage allowing the user to have an Improved Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps, which overcomes the resistance of the tight fit of the tubing into the sensor slots and to fully and uniformly insert the tubing into the sensor slots.
- a latch mechanism retains the door in its closed position and the tubing in a fully inserted position in the sensors.
- Tubing may be removed by releasing the door's latch mechanism, opening the door, and then pulling the tubing out of the sensors.
- the tubing is retained by the door and is removed from the sensors when the door is opened.
- Embodiment 2 of the invention comprises the addition of connectors on the tubing which allow the user to insert the tubing into the pump sensor slots by pushing the connectors into mating receptacles on the pump that contain the sensors ( FIGS. 3 and 4 ).
- the connectors may be made of a variety of materials including plastic.
- the connectors have guides and supports that position the tubing in the connectors ( FIGS. 5A and 5B ).
- the support webs contact an arc of the tubing's outside diameter preferably, but not limited to between 120 degrees and 180 degrees to provide maximum support for the tubing without interfering with the sensor tubing slots during insertion ( FIGS. 6A and 6B ).
- the insertion of the connectors into the pump receptacle inserts the tubing fully into the sensors' tubing slots.
- the connectors typically include a latch which mates with the receptacle and retains the connectors in the pump sensor receptacles ( FIGS. 5A and 5B ).
- the latch mechanism provides a clear visual and audible indication to the user that the tubing is fully and properly inserted into the pump sensor slots.
- the receptacles may contain electrical, optical, or other means for detecting that the tubing connectors are properly and fully inserted. This detection means has the advantage of providing a means for the pump to ensure that the tubing is properly inserted independent of the user.
- this means will prevent the user from bypassing the use of the connectors, installing the tubing in a reverse direction, or using an incompatible tubing set which does not contain the proper mating connectors.
- the connectors shall each be of a shape and size that prevents each connector from mating with the other connector's receptacle.
- the connectors provide support around the tubing to prevent tubing deformation that would prevent the tubing from being inserted into the sensors ( FIGS. 6A and 6B ).
- This support web provides a mechanical advantage allowing the user to overcome the resistance of the tight fit of the tubing into the sensor slots and to fully and uniformly insert the tubing into the sensors' tubing slots.
- the tubing is removed from the sensors by depressing the connectors' latch mechanism, which releases the connector from the receptacle, and then pulling the connectors out of the pump sensor receptacles.
- a further advantage of this invention is that the tubing is glued or otherwise affixed onto the connectors only at the tubing's end points of the support web for each connector such that once the connectors are inserted into the pump receptacles, pulling on the tubing will not cause a stress on or subsequent movement of the tubing in the sensor slots which could adversely affect the measurement of the fluid properties by the sensors ( FIGS. 7A and 7B ).
- the tubing is not glued or otherwise affixed onto or along the connector support webs. Since the tubing is not affixed to the support webs, small motions of the tubing connector along the insertion/retraction axis do not disturb the tubing's position in the sensor slot which could adversely affect the measurement of the Improved Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps fluid properties by the sensors.
- the connectors can be affixed or loosened from the tubing in a non-permanent manner allowing the user to reposition the connectors along the length of the tubing. This allows the user to provide the optimum length of tubing for the inlet and outlet portions of the tubing set.
- a further advantage of this invention is that the mechanical retention force of the tubing in the sensors is provided by the connector to receptacle mating and not by the mechanical resistance of the sensor tubing slots against the tubing walls.
- the sensors' tubing slots may be enlarged so that the mechanical interference between the sensor walls and the tubing walls is minimized while still meeting the measurement requirement of an air tight fit between the sensor walls and the tubing wall ( FIGS. 8A-8D ).
- This enlargement increases the slot size preferably, but not limited, an opening of 0.010′′ to 0.030′′ less than the tubing outside diameter. Additionally, portions of the sensor slot that do not affect the measurement function can be enlarged even further to a size greater than or equal to the tubing outside diameter. This reduces the overall force required by the user to insert the tubing into the sensors. Tubing insertion force may be further reduced by mounting the sensors in the pump receptacle such that a small amount of vertical movement allows the sensors' tubing slots to align with the tubing attached to the connector during the insertion or extraction of the tubing ( FIGS. 9A and 9B ).
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Abstract
Connectors are attached to a pump housing. The pump squeezes tubing of a particular outer diameter creating a peristaltic contraction of the tubing to push the fluid in the tubing in a particular direction. The connectors hold the tubing in slots having walls that are narrower than the outer diameter of the tubing. To aid in pushing the tubing into the slots, a door is attached to the connectors that pushes the tubing into the slots while closing thereby covering the slots, which helps assure that the tubing is properly attached to the connector. Alternatively, the connector may be permanently attached to the tubing, but may be detached from the pump housing, so that as long as the connectors are connected properly, the tubing is connected properly.
Description
- This application is a continuation of U.S. patent application Ser. No. 13/359,455, entitled “Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps,” by Sean Y. Sullivan, filed Jan. 26, 2012 (Docket # B6-1), which claims priority benefit of U.S. Provisional Patent Application No. 61/436,589, entitled “Improved Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps,” filed Jan. 26, 2011, by Sean Y. Sullivan et al., and the contents of all the above listed applications are incorporated herein by reference, in their entirety.
- This specification generally relates to embodiments for delivering fluids to patients.
- Medical diagnostic and therapeutic procedures often involve delivering fluids to patients. For example, procedures affecting subcutaneous or internal tissues often utilize catheters to access these tissues. There are many other medical procedures involving delivery of fluids to patients including delivery of medications, nutrients, anesthetic agents, and diagnostic agents. Examples of procedures utilizing catheters include delivery of medicines to tissue sites, measurement of tissue electrical and mechanical properties, imaging of tissues and ablation of tissues. These procedures may use catheters which require the delivery of fluids to these tissues or the circulation of fluids within the catheter.
- In the following drawings like reference numbers are used to refer to like elements. Although the following figures depict various examples of the invention, the invention is not limited to the examples depicted in the figures.
-
FIG. 1 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps. -
FIG. 2 shows an embodiment of the tubing being inserted into an irrigation and infusion fluid pump, using the device ofFIG. 1 . -
FIG. 3 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps having connectors, in which the connectors are not attached to the pump. -
FIG. 4 shows an embodiment of a device for inserting tubing into irrigation and infusion fluid pumps in which the connectors are attached to the pump. -
FIGS. 5A and 5B show an embodiment of the guides and supports of the connectors ofFIGS. 3 and 4 . -
FIGS. 6A and 6B show an embodiment of the manner in which the connectors ofFIGS. 4 andFIGS. 5A and 5B provide support for the tubing. -
FIGS. 7A and 7B show an embodiment in which the tubing is permanently attached (e.g., glued) to the connector, but the connector is not permanently attached to the pump mechanism. -
FIGS. 8A-8D show an embodiment having enlarged tubing slots in the area where the tubing passes by the sensors. -
FIGS. 9A and 9B show an embodiment of mounting the sensors in the pump receptacle such that a small amount of vertical movement allows the sensors' tubing slots to align with the tubing attached to the connector during the insertion or extraction of the tubing. - Although various embodiments of the invention may have been motivated by various deficiencies with the prior art, which may be discussed or alluded to in one or more places in the specification, the embodiments of the invention do not necessarily address any of these deficiencies. In other words, different embodiments of the invention may address different deficiencies that may be discussed in the specification. Some embodiments may only partially address some deficiencies or just one deficiency that may be discussed in the specification, and some embodiments may not address any of these deficiencies.
- In embodiments, pumps are used to deliver fluid to these catheters for irrigation or infusion purposes. For example, ablation catheters may use fluid to provide cooling of the catheter tip or adjacent tissues. The fluid may be circulated in a loop enclosed within the catheter, often referred to as closed loop cooling, or delivered into the heart's chambers, often referred to as open irrigation, where the fluid is mixed with blood. The pump is required to deliver this fluid, typically sterile saline, in a controlled and safe manner. The saline is typically supplied from bags connected to tubing that is inserted into the pump mechanism.
- The pumping method is typically a peristaltic style that moves the fluid by successive compression and relaxation of the tubing, causing the fluid to be pushed through the tubing into the catheter. The pump device typically contains sensors to detect the presence of air bubbles in the fluid, which could pose a safety risk to the patient. Additional types of sensors may be used to detect other fluid properties including pressure, velocity, flow rate, composition, optical, and electrical characteristics.
- The user must insert the tubing into slots in these sensors and the peristaltic pump mechanism for the pump to function correctly. In order for the sensors to function properly, the tubing must fit snuggly into the sensor slots such that there is intimate contact between the walls of the sensors and the wall of the tubing. In order to secure the tubing in the sensors, the sensors are typically designed with slots that are 0.030″ to 0.050″smaller than the tubing outside diameter and may have an entrance slot that is even smaller to act as a retainer for the tubing. This tight fit of the tubing into the sensors requires users to elongate the tubing prior to insertion and then to push the tubing into the sensor slots, attempting to fully insert the tubing by this method. This process is subject to user technique and can often lead to partially inserted tubing and complaints by users regarding the difficulty of tubing insertion.
- This specification describes devices that improve the ease and reliability of tubing insertion into medical irrigation and infusion fluid pumps and particularly the insertion of tubing into sensor slots on the pumps.
-
Embodiment 1 of the invention comprises of a hinged door on the pump mechanism with guides and supports that align with the sensor openings intended for tubing insertion (FIGS. 1 and 2 ). With the door open, the user positions the tubing at the entrance to the sensor slots using guides on either side(s) of the sensor(s) to retain the tubing in the proper position. In an alternative embodiment, the tubing is retained by guides on the door. The user then closes the door. The guides and supports on the door engage the tubing along its length and apply uniform pressure across the length of the tubing that fits into the sensors. - The door's design provides mechanical leverage allowing the user to have an Improved Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps, which overcomes the resistance of the tight fit of the tubing into the sensor slots and to fully and uniformly insert the tubing into the sensor slots. When the door is fully closed, a latch mechanism retains the door in its closed position and the tubing in a fully inserted position in the sensors. Tubing may be removed by releasing the door's latch mechanism, opening the door, and then pulling the tubing out of the sensors. In an alternative embodiment, the tubing is retained by the door and is removed from the sensors when the door is opened.
- Embodiment 2 of the invention comprises the addition of connectors on the tubing which allow the user to insert the tubing into the pump sensor slots by pushing the connectors into mating receptacles on the pump that contain the sensors (
FIGS. 3 and 4 ). The connectors may be made of a variety of materials including plastic. The connectors have guides and supports that position the tubing in the connectors (FIGS. 5A and 5B ). The support webs contact an arc of the tubing's outside diameter preferably, but not limited to between 120 degrees and 180 degrees to provide maximum support for the tubing without interfering with the sensor tubing slots during insertion (FIGS. 6A and 6B ). - The insertion of the connectors into the pump receptacle inserts the tubing fully into the sensors' tubing slots. The connectors typically include a latch which mates with the receptacle and retains the connectors in the pump sensor receptacles (
FIGS. 5A and 5B ). The latch mechanism provides a clear visual and audible indication to the user that the tubing is fully and properly inserted into the pump sensor slots. In addition, the receptacles may contain electrical, optical, or other means for detecting that the tubing connectors are properly and fully inserted. This detection means has the advantage of providing a means for the pump to ensure that the tubing is properly inserted independent of the user. For example, this means will prevent the user from bypassing the use of the connectors, installing the tubing in a reverse direction, or using an incompatible tubing set which does not contain the proper mating connectors. When the tubing set contains more than one connector, the connectors shall each be of a shape and size that prevents each connector from mating with the other connector's receptacle. The connectors provide support around the tubing to prevent tubing deformation that would prevent the tubing from being inserted into the sensors (FIGS. 6A and 6B ). - This support web provides a mechanical advantage allowing the user to overcome the resistance of the tight fit of the tubing into the sensor slots and to fully and uniformly insert the tubing into the sensors' tubing slots. The tubing is removed from the sensors by depressing the connectors' latch mechanism, which releases the connector from the receptacle, and then pulling the connectors out of the pump sensor receptacles. A further advantage of this invention is that the tubing is glued or otherwise affixed onto the connectors only at the tubing's end points of the support web for each connector such that once the connectors are inserted into the pump receptacles, pulling on the tubing will not cause a stress on or subsequent movement of the tubing in the sensor slots which could adversely affect the measurement of the fluid properties by the sensors (
FIGS. 7A and 7B ). - Equally advantageous is that the tubing is not glued or otherwise affixed onto or along the connector support webs. Since the tubing is not affixed to the support webs, small motions of the tubing connector along the insertion/retraction axis do not disturb the tubing's position in the sensor slot which could adversely affect the measurement of the Improved Method and Device for Insertion of Tubing into Irrigation and Infusion Fluid Pumps fluid properties by the sensors. An alternative embodiment is that the connectors can be affixed or loosened from the tubing in a non-permanent manner allowing the user to reposition the connectors along the length of the tubing. This allows the user to provide the optimum length of tubing for the inlet and outlet portions of the tubing set. A further advantage of this invention is that the mechanical retention force of the tubing in the sensors is provided by the connector to receptacle mating and not by the mechanical resistance of the sensor tubing slots against the tubing walls. Thus, the sensors' tubing slots may be enlarged so that the mechanical interference between the sensor walls and the tubing walls is minimized while still meeting the measurement requirement of an air tight fit between the sensor walls and the tubing wall (
FIGS. 8A-8D ). - This enlargement increases the slot size preferably, but not limited, an opening of 0.010″ to 0.030″ less than the tubing outside diameter. Additionally, portions of the sensor slot that do not affect the measurement function can be enlarged even further to a size greater than or equal to the tubing outside diameter. This reduces the overall force required by the user to insert the tubing into the sensors. Tubing insertion force may be further reduced by mounting the sensors in the pump receptacle such that a small amount of vertical movement allows the sensors' tubing slots to align with the tubing attached to the connector during the insertion or extraction of the tubing (
FIGS. 9A and 9B ). - Each embodiment disclosed herein may be used or otherwise combined with any of the other embodiments disclosed. Any element of any embodiment may be used in any embodiment.
- Although the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the true spirit and scope of the invention. In addition, modifications may be made without departing from the essential teachings of the invention.
Claims (5)
1. A device, comprising:
a pump that squeezes tubing of a particular outer diameter creating a peristaltic contraction of the tubing to push the fluid in the tubing in a particular direction;
a sensor for sensing properties of the fluid;
a connector having a slot leading to or leading away from the sensor forming a channel that holds the tubing in place; the slot having walls having a portion in which the walls are a distance apart from one another that is less than the particular outer diameter of the tubing; and
a cover for the slot holding the tubing in the slot.
2. The device of claim 1 , the connector being detachable from the pump.
3. The device of claim 1 , the walls of the slot having another portion that passes by the sensor in which the walls of the slot are a distance apart that is at least as large as the particular outer diameter.
4. A system comprising:
a pump that squeezes tubing of a particular outer diameter, creating a peristaltic contraction of the tubing to push the fluid in the tubing in a particular direction;
a sensor for sensing properties of the fluid; and
a connector having slot leading to or leading away from the sensor forming a channel that holds the tubing in place; the connector being permanently attached to the tubing; the connector detaches from a housing of the pump, so that when the tubing is changed, a new tubing permanently attached to a new connector is attached to the pump housing.
5. A method comprising:
placing tubing into a slot that is in a connector, the slot having walls having a portion in which that walls are distance apart from one another that is less than an outer diameter of the tubing, the connector being attached to a pump; and
closing a covering that covers the slot, the covering pushing the tubing into the slot and holds the tubing in the slot;
while the pump is in operation, the pump squeezes the tubing therein creating a peristaltic contraction of the tubing to push the fluid in the tubing in a particular direction.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/280,643 US20140371707A1 (en) | 2011-01-26 | 2014-05-18 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
US14/693,831 US10603480B2 (en) | 2011-01-26 | 2015-04-22 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161436589P | 2011-01-26 | 2011-01-26 | |
US201213359455A | 2012-01-26 | 2012-01-26 | |
US14/280,643 US20140371707A1 (en) | 2011-01-26 | 2014-05-18 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US201213359455A Continuation | 2011-01-26 | 2012-01-26 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/693,831 Continuation US10603480B2 (en) | 2011-01-26 | 2015-04-22 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
US14/693,831 Continuation-In-Part US10603480B2 (en) | 2011-01-26 | 2015-04-22 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
Publications (1)
Publication Number | Publication Date |
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US20140371707A1 true US20140371707A1 (en) | 2014-12-18 |
Family
ID=52019841
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/280,643 Abandoned US20140371707A1 (en) | 2011-01-26 | 2014-05-18 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
US14/693,831 Active 2033-10-13 US10603480B2 (en) | 2011-01-26 | 2015-04-22 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US14/693,831 Active 2033-10-13 US10603480B2 (en) | 2011-01-26 | 2015-04-22 | Method and device for insertion of tubing into irrigation and infusion fluid pumps |
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US (2) | US20140371707A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019082083A3 (en) * | 2017-10-24 | 2019-06-20 | Onefusion Ag | Infusion systems |
WO2020153036A1 (en) * | 2019-01-22 | 2020-07-30 | テルモ株式会社 | Liquid delivery pump |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10639417B2 (en) * | 2017-10-25 | 2020-05-05 | Carefusion 303, Inc. | Lever for auto insertion and secure placement of IV tubing for use in intravenous pump systems |
CN107823744A (en) * | 2017-12-25 | 2018-03-23 | 徐州昌南医疗科技有限公司 | A kind of Urology Surgery flusher |
US11813431B2 (en) | 2019-03-29 | 2023-11-14 | Honeywell International Inc. | Fluid flow sensor |
US11517670B2 (en) * | 2019-05-10 | 2022-12-06 | Honeywell International Inc. | Fluid sensor |
CN114423472A (en) * | 2019-11-15 | 2022-04-29 | 深圳迈瑞科技有限公司 | Infusion pump and infusion control method thereof |
WO2021092974A1 (en) * | 2019-11-15 | 2021-05-20 | 深圳迈瑞科技有限公司 | Infusion pump and infusion control method therefor |
ES2877948A1 (en) * | 2020-11-09 | 2021-11-17 | Pacheco Luis Alonso | Peristaltic pump for hysteroscopy (Machine-translation by Google Translate, not legally binding) |
WO2023153411A1 (en) * | 2022-02-14 | 2023-08-17 | テルモ株式会社 | Infusion pump |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382753A (en) * | 1979-03-09 | 1983-05-10 | Avi, Inc. | Nonpulsating IV pump and disposable pump chamber |
US20070269324A1 (en) * | 2004-11-24 | 2007-11-22 | O-Core Ltd. | Finger-Type Peristaltic Pump |
US20090087326A1 (en) * | 2007-09-27 | 2009-04-02 | Voltenburg Jr Robert R | Peristaltic pump assembly |
US20090087327A1 (en) * | 2007-09-27 | 2009-04-02 | Voltenburg Jr Robert R | Peristaltic pump and removable cassette therefor |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963023A (en) * | 1974-11-04 | 1976-06-15 | Cobe Laboratories, Inc. | Extracorporeal blood circulation system and pump |
US6059544A (en) * | 1995-12-01 | 2000-05-09 | Alcon Laboratories, Inc. | Identification system for a surgical cassette |
US7247146B2 (en) * | 2003-02-07 | 2007-07-24 | Gambro Lundia Ab | Support element for an integrated blood treatment module, integrated blood treatment module and extracorporeal blood treatment apparatus equipped with said integrated module |
US7273359B2 (en) * | 2003-11-05 | 2007-09-25 | Linvatec Corporation | Peristaltic irrigation pump system |
CA2570139C (en) * | 2004-05-21 | 2012-04-24 | Ihsan A. Haddad | A system for detecting and removing a gas bubble from a vascular infusion line |
US8308457B2 (en) * | 2004-11-24 | 2012-11-13 | Q-Core Medical Ltd. | Peristaltic infusion pump with locking mechanism |
US7935074B2 (en) * | 2005-02-28 | 2011-05-03 | Fresenius Medical Care Holdings, Inc. | Cassette system for peritoneal dialysis machine |
US8353683B2 (en) * | 2007-06-05 | 2013-01-15 | Seiko Epson Corporation | Micropump, pump module, and drive module |
JP5619029B2 (en) * | 2009-01-30 | 2014-11-05 | ネステク ソシエテ アノニム | Infusion pump cassette with free flow prevention valve mechanism |
US9072540B2 (en) * | 2009-08-12 | 2015-07-07 | Boston Scientific Limited | Adaptive tubing cassettes for use in connection with interventional catheter assemblies |
AU2010286957B2 (en) * | 2009-08-31 | 2015-10-01 | Nestec S.A. | Cassette with infusion set containing spring-biased anti-freeflow mechanism for peristaltic infusion pump |
KR20130139957A (en) * | 2010-10-01 | 2013-12-23 | 제벡스, 아이엔씨. | Pressure monitoring system for infusion pumps |
US8459968B2 (en) | 2011-09-19 | 2013-06-11 | Curlin Medical Inc. | Peristaltic pump cassette and method of installing same |
DE102012105926A1 (en) * | 2012-07-03 | 2014-01-09 | B. Braun Avitum Ag | Hose roller pump with swiveling hose holder, and medical device for extracorporeal blood treatment |
DE102012108052A1 (en) * | 2012-08-30 | 2014-03-06 | Aesculap Ag | Hose receptacle of a roller pump |
WO2014077308A1 (en) * | 2012-11-14 | 2014-05-22 | 並木精密宝石株式会社 | Tubing pump |
WO2014077309A1 (en) * | 2012-11-14 | 2014-05-22 | 並木精密宝石株式会社 | Tube clamp structure of tubing pump |
-
2014
- 2014-05-18 US US14/280,643 patent/US20140371707A1/en not_active Abandoned
-
2015
- 2015-04-22 US US14/693,831 patent/US10603480B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382753A (en) * | 1979-03-09 | 1983-05-10 | Avi, Inc. | Nonpulsating IV pump and disposable pump chamber |
US20070269324A1 (en) * | 2004-11-24 | 2007-11-22 | O-Core Ltd. | Finger-Type Peristaltic Pump |
US20090087326A1 (en) * | 2007-09-27 | 2009-04-02 | Voltenburg Jr Robert R | Peristaltic pump assembly |
US20090087327A1 (en) * | 2007-09-27 | 2009-04-02 | Voltenburg Jr Robert R | Peristaltic pump and removable cassette therefor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019082083A3 (en) * | 2017-10-24 | 2019-06-20 | Onefusion Ag | Infusion systems |
WO2020153036A1 (en) * | 2019-01-22 | 2020-07-30 | テルモ株式会社 | Liquid delivery pump |
JP7393354B2 (en) | 2019-01-22 | 2023-12-06 | テルモ株式会社 | infusion pump |
Also Published As
Publication number | Publication date |
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US20150224254A1 (en) | 2015-08-13 |
US10603480B2 (en) | 2020-03-31 |
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Legal Events
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