WO2010115430A1 - Pompe à levier à utiliser en irrigation anale - Google Patents

Pompe à levier à utiliser en irrigation anale Download PDF

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Publication number
WO2010115430A1
WO2010115430A1 PCT/DK2010/050075 DK2010050075W WO2010115430A1 WO 2010115430 A1 WO2010115430 A1 WO 2010115430A1 DK 2010050075 W DK2010050075 W DK 2010050075W WO 2010115430 A1 WO2010115430 A1 WO 2010115430A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
handle
liquid
anal
pump according
Prior art date
Application number
PCT/DK2010/050075
Other languages
English (en)
Inventor
Klaus Budig
Mark Baerenrodt
Steven Vordenberg
Marc Anderson
James Rudolph
David Carpenter
Rose Anderson
Derek Verhoorn
Jeff Hamilton
Yeli Tong
Bob Ketelhohn
Original Assignee
Coloplast A/S
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 Coloplast A/S filed Critical Coloplast A/S
Publication of WO2010115430A1 publication Critical patent/WO2010115430A1/fr

Links

Classifications

    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • 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
    • A61M3/0237—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the pressure being generated in the reservoir, e.g. by gas generating tablets
    • 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
    • A61M3/0262—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped manually, e.g. by squeezing a bulb
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1042—Alimentary tract
    • A61M2210/1067—Anus
    • 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
    • A61M3/0208—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity before use
    • 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
    • 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
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means
    • A61M3/0295—Cannula; Nozzles; Tips; their connection means with inflatable balloon

Definitions

  • the invention relates to a lever pump that is used in connection with anal irrigation.
  • the invention further relates to a system for use in connection with anal irrigation.
  • Anal irrigation is one of a number of treatments used to aid people with bowel problems. People suffering from bowel problems are often paralysed typically due to spinal cord injuries and confined to a wheelchair or hospitalised. In these situations, the peristaltic functions, i.e. the reflexes and muscles of the bowel, often cannot be stimulated correctly. This results in constipation or random discharge of bowel contents. By using anal irrigation, a stimulation of the peristaltic movements of the colon can be provided.
  • an anal probe also called anal catheter or speculum
  • the anal probe is inserted into the rectum through the anus.
  • the anal probe is typically retained in the rectum by retention means, most commonly a balloon, which is inflated against the wall of the rectum.
  • a liquid such as water or a saline solution, is introduced into the rectum through the anal probe.
  • the amount of liquid is generally below 1 ,5 litres, depending on the person.
  • the liquid is contained in a reservoir prior to use.
  • the reservoir may for example be in the form of a canister or a reservoir bag.
  • a pump is used for pumping the liquid into the rectum.
  • the pump may be adapted for pumping the liquid directly (for example a self-priming pump) or for pumping air into the reservoir (for example an air-pump) and thereby displacing the liquid from the reservoir.
  • the liquid flows from the reservoir through a tube into the anal probe and from there into the rectum.
  • the pump is easy to use for people with poor hand dexterity.
  • WO05032617 relates to methods for delivering a colonic lavage with pulsating action produced by operating a manual pump.
  • the method generally entails delivering a lavage liquid to a patient's colon, pulsating the lavage liquid within the colon by operating a manual pump.
  • the manual pump can be a squeeze bulb disposed in-line with a delivery line.
  • the manual pump can be formed of a rubber, polyvinylelastomer or similar material.
  • the reservoir is hung from a stand to elevate the reservoir above the patient and allow gravity feed of liquid to the patient
  • the invention concerns a pump, which is particularly easy to use for people with poor hand dexterity.
  • the pump has a handle with a lever connected to the interior of the pump so that the lever may be used to perform the pumping action.
  • the lever pump may be used in connection with anal irrigation.
  • the lever pump may be equipped with a volume delimiter for pre-setting the amount of air or liquid passing through it.
  • the lever pump may be used for pumping liquid directly into the catheter and from there into the rectum. It may also be used for pumping air into the retention means at the probe as well as for pumping air into the reservoir to displace the liquid.
  • the invention in a first aspect, relates to a pump for use in anal irrigation comprising a pump house defining a longitudinal direction of the pump and including a pump mechanism and a handle, wherein the handle is adapted for providing a lever effect to the pumping action upon movement of the handle in a direction transverse to the longitudinal direction.
  • a lever pump is particularly easy to use for people with poor hand dexterity because less strength is needed to use the pump due to the design of the handle on the pump.
  • the length of the handle on the pump provides a lever effect to the pumping action.
  • Such a pump may be used for pumping liquid.
  • the pump is able to pump liquid from a reservoir bag standing on the floor to the pump placed in the lap of a user and further into an anal probe inserted in the user's rectum.
  • the pump may also be used for pumping air in which case the pump pumps air into a reservoir bag or canister thereby displacing the liquid from the reservoir bag or canister.
  • the liquid travels through a liquid tube to the anal probe and from there further on into the rectum.
  • the irrigating liquid may be any suitable medium such as tap water, isotonic salt water, sterile water or oily substances.
  • the pump may be adapted for placing in the lap for use by the hands of a user.
  • the pump has a limited size and weight so that it can be placed in the lap.
  • the force needed to activate the pump is a force that can easily be applied by the hands of a user.
  • the pump may be in the form of a lever pump having a pivotable pump handle and a support defining a longitudinal direction of the pump and wherein, the cylindrical housing element of the control unit is transverse to the longitudinal direction of the pump.
  • the pump has two extreme positions, a relaxed position and a compressed position.
  • a relaxed position the pump is ready to start pumping and the pump mechanism is filled with air that can be removed upon compression of the pump mechanism.
  • the compressed position (almost) all of the air has been removed from the pump mechanism.
  • the pump handle pivots around an axis extending transverse to the longitudinal direction of the pump.
  • the pump handle defines an angle with respect to the longitudinal direction of the pump.
  • the pump handle In the compressed position, the pump handle is substantially parallel to the longitudinal direction of the pump.
  • the pump handle When the pump handle pivots, it actuates a pump mechanism supported by the support of the pump.
  • the pump mechanism in the lever pump may be a bellows element, a foam element, a bulb element or a piston element. All of these pump mechanisms works well with a lever actuator (the pivotable handle).
  • the pump mechanism as such forms no part of this invention and will not be discussed further.
  • the pump may be approximately 15 cm in the longitudinal direction and approximately 5 cm in the transverse direction.
  • the pump handle may be approximately 10 cm in the longitudinal direction and extend in an angle of between 30 and 45 degrees with respect to the support, when the pump is in the relaxed position.
  • the pump mechanism may be in the form of a piston coupled to the handle so that movement of the handle in the direction transverse to the longitudinal direction of the pump house causes movement of the piston in a longitudinal direction.
  • Such a pump provides a linear pumping movement with respect to the longitudinal direction of the pump house.
  • the linear pumping movement is directly transferred to the piston.
  • the piston is fitted narrowly into a cylinder. Due to the narrow fit between the piston and the cylinder, the pump is able to transfer almost all of the pressure that is applied to the handle of the pump directly to the pressure in the piston, and thereby to the water in the pump.
  • the handle may be connected to the piston via a rack and pinion connection or via a direct linkage. Both mechanisms are well-known in the art.
  • a piston pump mechanism can be made of materials such as Polycarbonate, Acetal (Delrin) or Polypropylene. However, many other materials are also possible.
  • the pump mechanism may also be in the form of a compressible bulb and a pressure- applying element coupled to the handle.
  • the pressure-applying element may be made integrally with the handle.
  • the bulb may be made of a material such as Polyvinyl Chloride (PVC), Urethane, or Silicone.
  • the pump mechanism is in the form of a bellows element that cooperates with the handle of the pump.
  • the bellows may be made of materials such as Urethane, Silicone, or Polypropylene.
  • the bellows could be made of a flexible rubber-like material but it may also be made of a blow-molded plastic material.
  • the pump mechanism is in the form of a resilient element of foam material that cooperates with the handle of the pump.
  • the foam element When the pump is to be used, the foam element is compressed by the pressure applied to the handle, and the air captured or enclosed in the pores of the foam element is released due to the pressure. When the pressure at the foam element is removed, the foam element will suck in air to fill the pores of the foam.
  • the foam material may be Polyurethane (PU) foam.
  • the foam is selected to provide an optimum balance between the force needed to compress it (compression force) and the resiliency so that the user does not have to wait too long before being able to give the next stroke.
  • PU foam of a density of approximately 40-45 kg/m 3 has been found to provide the right balance between the compression force and the resilience.
  • the foam element may be enclosed in a liquid tight foil. Thereby the pump can be used and withstand spilling of water at the pump.
  • the foil may consist of a layer of Polyurethane of approximately 0.5 mm.
  • the element may be provided with collapsing lines.
  • the collapsing lines may be provided along the sides of the foam element, that is, the surfaces of the foam element transverse to the longitudinal direction of the pump. These surfaces are in the direction of the movement of the handle.
  • the pump house and handle may be made of a material such as high impact Acrylonitrile Butadiene Styrene (ABS).
  • ABS Acrylonitrile Butadiene Styrene
  • the pump is adapted for pumping liquid. If the pump is adapted for pumping liquid, then the requirements for a reservoir bag in a system for use in anal irrigation will be reduced.
  • the reservoir bag may then be any regular liquid-tight bag and need not be able to withstand pressure inside the bag.
  • the cylinder may be connected to an internal liquid tube extending from the cylinder to an outside surface of the pump house. From there it may be connected to a liquid tube, which is connected to a reservoir bag.
  • the pump house has a connector in one end that connects to the liquid tube, which provides liquid from the reservoir bag. Then the internal liquid tube extends between this connector and the cylinder.
  • the internal liquid tube is provided with a oneway valve so that liquid only flows one way through the system.
  • the end of the cylinder facing away from the piston is provided with an outlet tube in connection with the outlet from the pump.
  • the cylinder or the outlet tube is also provided with a one-way valve.
  • Such one-way valves are well-known in the art and form no part of this invention.
  • the outlet from the pump may be in the form of a connector for connecting a liquid tube to the anal probe.
  • the pump may also be adapted for pumping air in which case the internal liquid tube will not be present.
  • the cylinder is provided with an air inlet through a one-way valve mechanism and an air outlet at the end of the cylinder facing away from the piston.
  • the outlet is also provided with a one-way valve.
  • the outlet communicates with a connector on the pump house.
  • the connector connects one or more air tubes to the pump.
  • the pump may be re-used for a long period of time.
  • the pump may comprise means for dismantling the pump, allowing the pump mechanism to be dried after use.
  • the pump mechanism can be dried out before the pump is used again. By drying the pump mechanism thoroughly after each use, the growth of bacteria inside the pump is minimized, thus enabling the pump to be used numerous times before being replaced.
  • the dismantling means include a cap at one end of the pump house.
  • the cap may be attached to the pump house by means of a bayonet fitting, a snap fitting or a screw thread.
  • a cap at one end makes it possible to remove the part of the pump mechanism that comes into contact with water, for example the piston and cylinder, through the end of the pump house. Thereby the piston including the cylinder and the water tube can be cleaned and dried after use.
  • the pump house and the compressible bulb may each be made in two parts so that they are easy to disassemble. Thereby the two parts and the internal water tubes can be cleaned and dried after use.
  • the pump mechanism includes a bellows
  • the pump house can be made so it can be opened. Thereby the bellows and the internal water tubes can be dried and cleaned.
  • the pump may comprise means for controlling the volume. These means include a switch which is attached to the pump house so that it may be operated from the outside.
  • the switch may be in the form of a slider.
  • the slider switch is a true volume limiter in that it can be preset by the user to deliver a prescribed volume of water, after which the pump will be disabled until it is reset by the user.
  • the switch system may comprise two adjacent sliding elements whose range of motion is the distance required to move the piston between its two extremes. These sliding elements can be locked together or move independently, but in the case of independent movement they are spring loaded so that they tend to return to the same relative positions they would have if they were locked together.
  • the sliding elements are coupled to the slider switch so that a user may preset the slider switch for a certain amount of liquid.
  • the sliding elements When the pump has delivered the preset amount of liquid, the sliding elements will dislocate the handle of the pump, giving the user an immediate feedback that the pump has delivered the desired amount of liquid.
  • the slider may be either incrementing or decrementing volume indicators, also re-settable by the user. These later embodiments do not affect the operation of the pump.
  • Another aspect of the invention relates to a system for use in anal irrigation comprising a reservoir bag, an anal probe for insertion into the rectum, a pump as described above, a first liquid tube for connecting the pump and the reservoir bag, and a second liquid tube for connecting the pump and the anal probe.
  • Such a system uses a liquid pump which means that the system is simple, and the reservoir bag can be any liquid tight bag.
  • the invention in yet another aspect, relates to a system for use in anal irrigation comprising a reservoir bag, an anal probe for insertion into the rectum, a pump as described above, an air tube for connecting the pump and the reservoir bag, and a liquid tube for connecting the reservoir bag and the anal probe.
  • Such a system uses an air pump whereby the pump can be re-used repeatedly as it does not get into contact with liquid.
  • the anal probe comprises retention means in form of an inflatable balloon, a balloon air tube and a balloon pump for pumping air into the balloon.
  • Retention means allows the anal probe to keep itself in the rectum for the required time, and therefore the user does not have to hold it through-out the procedure. When the user has finished the procedure, he can deflate the balloon and remove the anal probe.
  • FIG. 1 illustrates a pump including a handle functioning as a lever according to the invention.
  • Figure 2 illustrates a tube for connecting to the pump, where the tube further includes a connector for connecting to a reservoir bag.
  • FIGS 3 and 4 illustrate an embodiment of a pump according to the invention in assembled use-situation and in disassembled cleaning situation.
  • Figures 5 and 6 illustrate two different embodiments of transferring the movement of the handle to the pump mechanism.
  • FIGS 7 and 8 illustrate an embodiment of a pump according to the invention including a volume delimiter.
  • Figure 9 illustrates an exploded view of the volume delimiter in more detail.
  • Figures 10 and 1 1 illustrate a pump that includes a control unit.
  • Figures 12 and 13 illustrate an embodiment of the pump including a compressible bulb.
  • Figure 14 illustrates an embodiment of the pump including a bellows.
  • Figure 15 illustrates an embodiment of the pump including a foam element.
  • FIG. 1 illustrates a pump 1 according to the invention.
  • the pump includes a handle 2 which, when in use, is adapted to be moved up and down to provide the pumping effect of the pump 1.
  • the handle 2 functions as a lever due to its length, and it is able to provide a relatively large pumping effect compared to other types of pumps.
  • the pump 1 further includes a pump house 3 including the pump mechanism (not shown).
  • the pump 1 may include a cap 4 for opening into the pump mechanism so that the inside of the pump may be dried.
  • the pump 1 includes a connector 5 for connecting a tube to the pump 1.
  • FIG. 2 illustrates a tube 10 for use with a pump 1 according to the invention.
  • the tube 10 includes a pump connector 11 in one end for connecting to the pump 1 and a reservoir connector 12 in the other end for connecting to a reservoir bag (not shown).
  • the reservoir connector 12 may include a plug 13 for closing the reservoir during use so that spillage is avoided.
  • the tube 10 includes a suction part 14 which may be in the form of a tube or pipe for entering into the liquid so as to suck it up through the pump.
  • FIGs 3 to 5 illustrate a pump 100 according to the invention, which pump comprises a handle 102 and a pump house 103 including the pump mechanism 101.
  • Figure 3 illustrates the pump in use configuration and figure 4 illustrates the pump in disassembled configuration.
  • Figure 5 illustrates a schematic drawing of an embodiment of the pump mechanism.
  • the pump house comprises a cap 104 for opening into the pump mechanism so that the part of the pump mechanism that has been in contact with liquid can be dried.
  • the pump also comprises a connector 105 at the end of the pump house opposite the cap 104.
  • the pump mechanism 101 comprises a piston 106 that comprises a plunger 107 and a rod 108. The piston itself moves in a cylinder 109.
  • the pump mechanism 101 is illustrated as a rack and pinion mechanism comprising a rack 110 and a pinion 111.
  • the pinion 111 is connected to the handle 102 through a connecting rod 112 and is, upon actuation from the handle 102, able to rotate around an axle 113.
  • the rack 110 is in one end connected to a spring 114 and in the other end to the rod 107 of the piston. The spring 114 will urge the rack 110 to the original position when pressure on the handle is released.
  • the pump of this embodiment is adapted for pumping liquid, and for this purpose the pump comprises an internal liquid tube 115 running from the connector 105 to the cylinder 109.
  • the internal liquid tube 115 is provided with a one-way valve (not shown) so that the liquid only flows from the connector 105 to the cylinder 109.
  • the internal liquid tube forms an inlet 116 for the cylinder in the end opposite the connector 105.
  • the cylinder is placed at the end opposite the plunger 108, which is provided with an outlet tube 117 which also includes a one-way valve (not shown).
  • the outlet tube 117 terminates in the outlet 118 from the pump.
  • FIG. 6 illustrates another pump mechanism 201 to be incorporated in a pump according to the invention. Only the pump mechanism is illustrated. It is contemplated that the other parts of the pump can be as illustrated in figures 3 to 5.
  • This pump mechanism 201 connects the handle 202 via a linkage 210 to the rod 207 of the piston 206.
  • the piston 206 also comprises a plunger 208 fitting in a cylinder 209.
  • the linkage 210 comprises a protrusion 211 on the rod 207 adapted for moving inside a cavity 212 on a protrusion 213 on the handle 202. Thereby, actuation of the handle 202 in upwards and downwards direction will be transferred to a direction on the rod 207 left and right of the figure.
  • FIGS 7 to 9 illustrate an embodiment of a pump 300 according to the invention, wherein the pump includes a volume delimiter.
  • Figures 7 and 8 illustrate how the volume delimiter may be operated from the outside of the pump.
  • Figure 9 illustrates an exploded view of a volume delimiter incorporated in a pump mechanism including a linkage as the one in figure 6.
  • the pump 300 in figure 7 includes a volume delimiter which may be operated by turning a switch 330 at one end of the pump.
  • the volume delimiter of the pump 300 in figure 8 is operated by sliding a switch 330.
  • FIG 9 illustrates part of a pump 300 including a volume delimiter 350. Only the inside parts of the pump are illustrated, thus the pump house is not shown.
  • the pump 300 includes a handle 302 connected to the pump mechanism 301 including a piston (not shown).
  • the piston comprises a plunger 308 and a rod 307.
  • the volume delimiter comprises an upper sliding element 351 and a lower sliding element 352.
  • the upper sliding element 351 is permanently connected with the handle 302 of the pump by a linkage 310.
  • the linkage in the embodiment in figure 6 is used to connect the handle to the rod 307 of the piston.
  • the sliding elements are incorporated between the linkage 310 and the rod 307.
  • the lower sliding element 352 is connected directly to the rod 307 of the piston.
  • the upper sliding element 351 moves forward in the direction of the plunger 308 when the handle 302 is depressed.
  • the upper and lower sliding elements interconnect through a recess 353 in the upper sliding element 351 and a protrusion 354 in the lower sliding element 352.
  • the protrusion 354 is placed on a spring-loaded engagement plate 355 which is pivotable about an axis extending in the plane of the sliding elements. Thereby the engagement plate 355 is pivotable from an engagement position in the plane of the lower sliding element 351 to a disconnected position below the lower sliding element 351.
  • the protrusion 354 extends upwards beyond the upper surface of the lower sliding element 352 so that it may engage with the recess 353 of the upper sliding element 351.
  • the position of the engagement plate 355 is controlled by a spring (not shown) urging it to the disconnected position and a control element 370 which in cooperation with an engagement arm 356 is able to urge it in the engagement position, as described later on.
  • the engagement arm 356 and the engagement plate 355 are connected to each other through a common hinge (not shown) connecting them to the lower sliding element 352. Thereby, the two parts will be able to pivot together around the hinge along the side of the lower sliding element.
  • the control element 370 comprises a button 371 operated by the user.
  • the button is attached to a first end 372 of a leaf spring 373.
  • the leaf spring 373 defines an angle of approx. 90 degrees having a protruding angle cam 374 at the turn and extends from the cam 374 to a second end 375.
  • the leaf spring has a protruding engagement cam 376, which is used to hold the engagement plate 355 in engagement position by cooperating with the engagement arm 356.
  • the leaf spring 373 has the effect that a user is able to push the button 371 inwards to disengage an edge 377 of the control element from connection to a lead screw 378.
  • the button 371 and the control element 370 may be moved along the lead screw 378 to a position indicating the desired volume.
  • the lead screw 378 turns a prescribed angle for each actuation of the pump handle 302. Through the turning, the lower sliding element 352 is moved.
  • the turning of the lead screw 378 is controlled by a ratchet mechanism 380 at one end of the lead screw 378.
  • Such ratchet mechanisms are well-known in the art and will only be described briefly.
  • the ratchet mechanism 380 comprises two parts: a pawl 381 and a cylindrical element 382 that has a screw thread 383.
  • the pawl 381 comprises an end piece 384 and two resilient arms 385a, 385b each with a protrusion 386a, 386b at the end.
  • the protrusions 386a, 386b are adapted for cooperating with the screw thread 383.
  • the protrusions have a right-angled leading surface 387 and an acute-angled trailing surface 388.
  • the ratchet 380 is actuated through means (for example a linkage, a rod or the like, not shown) connected to the handle or the linkage 310. These means are able to provide an impact on the end piece 384 of the pawl when the handle 302 is actuated. Such a connection is well-known in the art and will not be described further.
  • FIGS 10 and 1 1 illustrate a pump 400 according to the invention, where the pump has an integrated control unit 490.
  • the integrated control unit 490 may be used when the pump is adapted for pumping air. Then the pump may be switched between pumping air into the retention means on the probe, pumping air into a reservoir bag to displace the liquid in the bag, and a position where the retention means can be deflated.
  • the three positions are indicated by symbols on the pump.
  • the first symbol 491 indicates that in this position the pump pumps air into the tube extending to the retention means at the anal probe.
  • the second symbol 492 indicates that in this position the pump deflates the retention means
  • the third symbol 493 indicates that in this position the pump pumps air into the reservoir bag in order to displace liquid contained in the bag to the anal probe and into the rectum.
  • knob 494 of the control unit When the knob 494 of the control unit is turned, it sets the position of a three-way valve integrated in the pump (not shown).
  • a three-way valve integrated in the pump (not shown).
  • the valve is composed of two basic parts, the body and the actuator. As explained with the earlier embodiments, there is a one-way valve between the pump mechanism and the valve, so air can only flow into the valve.
  • the body is a cylinder with the air intake on one side and the outflow to the reservoir bag, positioned at the bottom of the cylinder, on-axis. Opposite the air intake is a vent.
  • the actuator is a knob 494 that can be turned by the user over a 180 degree range, which encompasses three positions, and includes a cylindrical shape that fills the open end of the cylinder in the body.
  • the actuator also incorporates the outflow channel to the retention means, on-axis.
  • the first actuator position air is directed from the intake on the side of the cylinder to the on-axis outflow on the actuator and hence to the balloon. Flow is blocked to and from the water bag.
  • the second position 90 degrees from the first, flow is blocked to and from the balloon and air is directed from the intake to the on-axis outflow to the water bag.
  • the third position 180 degrees from the start, flow is blocked to and from the water bag, and permitted to deflate the balloon between the balloon and the vent.
  • the air intake is in communication with the outflow from the piston of the pump and the outflow is in communication with an outflow from the pump.
  • the pump comprises two outflows - one for the bag and one for the retention means. Furthermore, the pump comprises an air intake, which may be placed anywhere.
  • the outflow(s) are preferably placed either at each end of the pump house either one in each end or as a double lumen tube outlet in one end.
  • FIGS 12 and 13 illustrate another pump 500 according to the invention.
  • the pump 500 includes a handle 502 and a pump house 503 with the pump mechanism 501.
  • Figure 12 illustrates the pump in use configuration and figure 13 illustrates the pump in disassembled configuration. Some details are only illustrated in one of the figures.
  • the pump of figures 12 and 13 can be disassembled for drying because the pump house 503 is separated in two parts 503a, 503b.
  • the pump also comprises a connector 505 at the end of the pump house.
  • the pump mechanism 501 comprises a compressible bulb mechanism 506.
  • the mechanism 506 comprises a bulb 507 and a pressure-applying element 508. As seen in figure 13, the bulb 507 can also be disassembled in two parts 507a, 507b so that it can be dried.
  • the pump of this embodiment is adapted for pumping liquid, and for this purpose the pump comprises an internal liquid tube 515 running from the connector 505 to the bulb 507.
  • the internal liquid tube 515 is provided with a one-way valve (not shown) so that the liquid only flows from the connector 505 to the bulb 507.
  • the internal liquid tube forms an inlet 516 for the bulb in the end opposite the connector 505.
  • An outlet tube 517 extends from a bulb outlet 519 in the bulb 507 to an outlet 518 from the pump.
  • the outlet tube 517 also includes a one-way valve (not shown).
  • FIG 14 illustrates yet another pump 600 according to the invention.
  • This pump is adapted for pumping air - however, the same pump mechanism 601 may be used in a pump adapted for pumping liquid.
  • the pump 600 is provided with a handle 602.
  • the pump mechanism 601 of the pump comprises a bellows element 607 placed in the pump house 603.
  • the handle 602 and the bellows element 607 are placed so that, in use, the handle 602 is able to apply pressure to the bellows element 607.
  • the bellows element 607 has an inlet 616 in form of a one-way valve.
  • the bellows element 607 sucks in air from the ambience through the inlet 616.
  • the pump 600 has one or more outlets 618 from the bellows element.
  • air can be delivered selectively to a balloon at an anal probe or to a reservoir for the irrigation liquid.
  • the pump 600 is illustrated as an air pump, it may be adapted to be used for pumping liquid.
  • the pump house would be openable and it would include two internal liquid tubes, one for sucking liquid to the bellows and one for delivering it from the bellows to the outlet from the pump.
  • the bellows and the internal liquid tubes can be removed to be cleaned and dried.
  • FIG 15 illustrates yet another pump 700 according to the invention.
  • the pump mechanism 701 is in the form of a foam element 706.
  • the pump includes a handle 702, which, when actuated, provides the pumping pressure to the foam element 706.
  • the pump 700 has an integrated control unit 790.
  • the control unit 790 basically functions as the control unit described in figure 1 1 .
  • the control unit 790 has a handle 794 to operate the control unit 790. When the handle 794 of the control unit is turned, it sets the position of a three-way valve 795 integrated in the pump.
  • the air inlet to the pump 705 is provided at the control unit, whereas the air outlet 718 is provided as a snorkel placed below the foam element 706.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe à levier (1) à utiliser en irrigation anale. Une telle pompe comporte une poignée d'actionnement (2) que l'utilisateur élève et abaisse. En raison de sa longueur, la poignée fonctionne comme un levier vis-à-vis du mécanisme de pompe. Le mécanisme de pompe peut avoir la forme d'un piston (106) comprenant une tige avec un plongeur (107) mobile par rapport à un cylindre (109), comme une seringue. Le mécanisme de pompe peut aussi avoir la forme d'un soufflet (607), d'une poire compressible (507) ou d'un élément élastique (706) de mousse. La pompe peut être adaptée au pompage du liquide, lequel est possible grâce à l'effet de levier important de la poignée. La pompe peut comprendre un limiteur de volume (350) permettant de désactiver la pompe après qu'une quantité préfixée de fluide a été administrée. La pompe peut aussi être adaptée au pompage de l'air et peut alors comprendre une unité de commande (490) pour faire passer l'air vers le ballon d'une sonde anale ou vers la poche réservoir contenant le liquide d'irrigation. L'invention concerne aussi un système à utiliser en irrigation anale comprenant une pompe à levier.
PCT/DK2010/050075 2009-04-08 2010-04-06 Pompe à levier à utiliser en irrigation anale WO2010115430A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200900473 2009-04-08
DKPA200900473 2009-04-08
DKPA200970130 2009-09-28
DKPA200970130 2009-09-28

Publications (1)

Publication Number Publication Date
WO2010115430A1 true WO2010115430A1 (fr) 2010-10-14

Family

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Application Number Title Priority Date Filing Date
PCT/DK2010/050075 WO2010115430A1 (fr) 2009-04-08 2010-04-06 Pompe à levier à utiliser en irrigation anale

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Country Link
WO (1) WO2010115430A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10183112B2 (en) 2013-08-30 2019-01-22 Hollister Incorporated Device for trans anal irrigation
US10737013B2 (en) 2014-07-08 2020-08-11 Hollister Incorporated Portable trans anal irrigation device
US10765796B2 (en) 2014-07-08 2020-09-08 Hollister Incorporated Trans anal irrigation platform with bed module
US11383021B2 (en) 2016-07-08 2022-07-12 Hollister Incorporated Wireless electronic pump design for a body cavity irrigation device
US11497844B2 (en) 2016-12-14 2022-11-15 Hollister Incorporated Transanal irrigation device and system
US11577018B2 (en) 2016-07-08 2023-02-14 Hollister Incorporated Body cavity irrigation integrated manual controller and pump device, system and method
US11596422B2 (en) 2016-11-03 2023-03-07 Hollister Incorporated Adjustable bowel treatment arm
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191569A (en) * 1921-11-30 1923-01-18 William George Moore Improved medical syringe
US3892311A (en) * 1969-01-31 1975-07-01 Vincent R Sneider Disposable syringe kit
US4136678A (en) * 1976-08-31 1979-01-30 Janet Beach Method of admitting solutions to medical drainage or irrigation conduits
US5382229A (en) * 1993-09-21 1995-01-17 Abbott Laboratories Irrigation solution re-circulating system
US5620314A (en) * 1995-02-21 1997-04-15 Worton; David M. Hand-operated liquid pump with removable parts
WO2005032617A2 (fr) 2003-10-08 2005-04-14 Roy Abell Procede d'administration de lavage du colon
WO2008009119A2 (fr) * 2006-07-18 2008-01-24 Fuel Transfer Technologies Appareil de pompage portatif pour pomper simultanément un liquide provenant d'un contenant source vers un contenant destinataire et de la vapeur provenant du contenant destinataire vers le contenant source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191569A (en) * 1921-11-30 1923-01-18 William George Moore Improved medical syringe
US3892311A (en) * 1969-01-31 1975-07-01 Vincent R Sneider Disposable syringe kit
US4136678A (en) * 1976-08-31 1979-01-30 Janet Beach Method of admitting solutions to medical drainage or irrigation conduits
US5382229A (en) * 1993-09-21 1995-01-17 Abbott Laboratories Irrigation solution re-circulating system
US5620314A (en) * 1995-02-21 1997-04-15 Worton; David M. Hand-operated liquid pump with removable parts
WO2005032617A2 (fr) 2003-10-08 2005-04-14 Roy Abell Procede d'administration de lavage du colon
WO2008009119A2 (fr) * 2006-07-18 2008-01-24 Fuel Transfer Technologies Appareil de pompage portatif pour pomper simultanément un liquide provenant d'un contenant source vers un contenant destinataire et de la vapeur provenant du contenant destinataire vers le contenant source

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10183112B2 (en) 2013-08-30 2019-01-22 Hollister Incorporated Device for trans anal irrigation
US11116891B2 (en) 2013-08-30 2021-09-14 Hollister Incorporated Device for trans anal irrigation
US10737013B2 (en) 2014-07-08 2020-08-11 Hollister Incorporated Portable trans anal irrigation device
US10765796B2 (en) 2014-07-08 2020-09-08 Hollister Incorporated Trans anal irrigation platform with bed module
US11497845B2 (en) 2014-07-08 2022-11-15 Hollister Incorporated Trans anal irrigation platform with bed module
US11383021B2 (en) 2016-07-08 2022-07-12 Hollister Incorporated Wireless electronic pump design for a body cavity irrigation device
US11577018B2 (en) 2016-07-08 2023-02-14 Hollister Incorporated Body cavity irrigation integrated manual controller and pump device, system and method
US11596422B2 (en) 2016-11-03 2023-03-07 Hollister Incorporated Adjustable bowel treatment arm
US11497844B2 (en) 2016-12-14 2022-11-15 Hollister Incorporated Transanal irrigation device and system
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

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