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WO2005011776A1 - Systeme d'irrigation a pompe a pied - Google Patents

Systeme d'irrigation a pompe a pied Download PDF

Info

Publication number
WO2005011776A1
WO2005011776A1 PCT/US2004/024456 US2004024456W WO2005011776A1 WO 2005011776 A1 WO2005011776 A1 WO 2005011776A1 US 2004024456 W US2004024456 W US 2004024456W WO 2005011776 A1 WO2005011776 A1 WO 2005011776A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubing
foot pedal
irrigation system
fluid
inlet
Prior art date
Application number
PCT/US2004/024456
Other languages
English (en)
Inventor
Jessica Watts Miller
Frank J. Fischer, Jr.
Original Assignee
Cook Urological Incorporated
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 Cook Urological Incorporated filed Critical Cook Urological Incorporated
Publication of WO2005011776A1 publication Critical patent/WO2005011776A1/fr

Links

Classifications

    • 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
    • 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
    • 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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6063—Optical identification systems
    • A61M2205/6081—Colour codes

Definitions

  • Physicians use a variety of instruments to diagnose and treat patients internally, such as endoscopes, ureteroscopes, and hysteroscopes. These instruments typically have an optical system, usually including a light source and an optical fiber or other device for transmitting light, in order to receive visual information as a part of a diagnostic or therapeutic procedure. If the instrument is used for treatment, the optical system may be essential for determining the progress of the treatment, e.g., removal of obstacles or stones from the patient. [0002] The bodily processes of the patient continue, unabated for the most part, during any of these diagnostic or therapeutic procedures. Therefore, one problem with virtually all these systems is the continuing need to clear the field of view because of obstruction by bodily fluids or other interferences during the procedure.
  • many such diagnostic or therapeutic instruments have an irrigation channel, for providing a flow of irrigating fluid to the operating field and providing a continual clearing of the transmitting medium used.
  • These channels can provide irrigating fluid, and with a hand pump, can also increase the flow of fluid when desired by the physician.
  • the physician busy manipulating the diagnostic or therapeutic instrument, can instruct an assistant to increase or decrease the flow of fluid when desired.
  • a pump under electrical or computer control may also be used, but this may unnecessarily complicate the irrigation apparatus.
  • One aspect of the invention is a foot pedal irrigation system, the system comprising a pump body configured for operation by a foot of a user, and a fluid outlet fitting and a fluid inlet fitting connected to the pump body.
  • the system also comprises at least one check valve connected to the fluid outlet fitting or the fluid inlet fitting.
  • FIG. 1 Another aspect of the invention is a foot pedal irrigation system, the system comprising inlet tubing, a pump body connected to the inlet tubing by an inlet check valve, the pump body comprising a chamber for holding fluid, a lower surface comprising a stiffener plate, and an upper surface configured for use by a foot of a user.
  • the system also comprises outlet tubing connected to the pump body via an outlet check valve.
  • Another aspect of the invention is a method of making a foot pedal irrigation system.
  • the method comprises forming a valve housing and a pump housing, attaching an inlet check valve and an outlet check valve to the valve housing, adhering the valve housing to the pump housing, and attaching fluid inlet tubing to the inlet check valve and attaching fluid outlet tubing to the outlet check valve.
  • Figure 1 is a top view of a first embodiment
  • Figure 2 is an elevational cross-sectional view of a portion of the first embodiment ; and [0011] Figure 3 is a diagrammatic view of the use of the embodiment of Fig. 1.
  • FIG. 1 An embodiment of the foot pedal irrigation system is depicted in Fig. 1.
  • the irrigation system includes a foot pedal pump body 10, an inlet valve 11 and an outlet valve 16.
  • Inlet valve 11 is connected via tubing 12 to one or more sources of irrigation fluid, such as bags of liquid saline solution (not shown).
  • the connection may be made by joining tubing 12 to a Y-fitting 13 leading to further tubing and thence to tubing spikes 14 for connection to the irrigation fluid.
  • Slide clamps 15 may be used to begin or halt flow of fluid to the pump body.
  • outlet valve 16 On the outlet side, outlet valve 16 is connected to outlet tubing 17 and to an outlet connector 18. Flow of fluid may be controlled by a clamp, such as an outlet pinch clamp 19.
  • Inlet valve 1 1 and outlet valve 16 are preferably one-way valves, allowing flow of fluid in only one direction, that is, flow of fluid from the inlet side into the pump, and flow of fluid from the outlet side out of the pump, as indicated by the arrows in Fig. 1.
  • a drip chamber 12a may also be installed, preferably on the inlet side, so that medical personnel may visually monitor the flow of fluid into the pump body.
  • the materials used in the foot pedal irrigation system may be any materials that are compatible with the fluid used for irrigation, and acceptable to the medical community and government regulators. Plastic materials are preferred.
  • the pump body is preferably soft plastic, such as plastisol, a material derived from PNC (polyvinyl chloride). Other materials may also be used, such as polypropylene or softer grades of polyethylene.
  • a user uses the foot pedal irrigation system by applying his or her foot to the top surface of the pump body. The pump body deforms in order to force fluid in the pump body out through the outlet valve. W en the user's foot is removed, the pump body then recovers its former shape, in preparation for the next application of the user's foot.
  • the pump body material should be sufficiently flexible to deform when pressure is applied. It is also important that the material be able to recover its shape relatively quickly when the pressure is removed. Plastisol that is from about 0.075 inches to about 0.100 inches thick has been found to be satisfactory for these purposes. A thickness of about 0.090 inches is preferred. Other thicknesses and other materials may also be used. [0014] Materials for the other parts of the foot pedal irrigation system may also be made from plastic.
  • the drip chamber and tubing to and from the pump may be PVC, or may be made from any other medically-acceptable material, such as silicone, C-flex (thermoplastic elastomeric material), polypropylene, polyethylene, polyurethane, nylon, or fluorocarbon materials, such as polytetrafluoroethylene.
  • Tubing available from United States Plastic Corp., Lima, Ohio, in several materials and several grades and sold under the brand name of "Tygon ® tubing" may also be used.
  • Soft tubing, with a Shore A durometer from about 65 to 70 is preferred, especially that with a Shore A 68 value.
  • the Y-fitting may be made from any of a variety of materials, including PVC, ABS, polycarbonate and acrylic.
  • the bag spikes which may be equipped with covers, are preferably made from a rigid plastic that will puncture an irrigation bag filled with irrigation fluid.
  • ABS is preferred, but other plastics may be used, such as polycarbonate or acrylic.
  • the slide clamps and pinch clamps may be made from a variety of plastic materials, including but not limit to, ABS, Delrin ® , HDPE, acrylic, polycarbonate, or polypropylene.
  • One-way or check valves 11, 16 are used to insure that the irrigation fluid flows only one way, i.e., from the irrigation bags through inlet valve 1 1 and into the pump body, and from the pump body out through outlet valve 16 to the outlet tubing. The fluid then flows to the endoscope or other instrument for which irrigation is desired.
  • the valves may be any suitable valves, but those available from Qosina Corp., Edgewood, NY are preferred.
  • the external portions of the check valves are manufactured in different colors, such as a blue external portion for the inlet valve and a white external portion for the outlet valve. This color coding provides a quick check both for manufacturing personnel and for operating-room personnel that the foot pedal irrigation system has been properly assembled.
  • a fitting 18 may be used to connect to an irrigation channel on the endoscope or other instrument that is being irrigated.
  • the fitting may be a male Luer lock attachment or fitting, which may also be made from any suitable plastic material, including, but not limited to, polycarbonate, ABS, HDPE, polypropylene, and polystyrene.
  • Pump body 10 may include a pump housing 10a and a valve housing 10b.
  • the pump body may also include a back plate lOd that is adhered to the pump housing.
  • the plate provides a stiffening function to the pump body, and may also be used to resist skidding or movement when the pump is in use. Plate lOd is preferably roughly co-extensive with the bottom surface of pump body 10.
  • the plate may be made of a stiff plastic about 0.050 to 0.125 inches thick, such as PVC, HDPE, or ABS, or may be made from a metal, such as steel. 1/16" (0.0625") PVC plates have worked well.
  • Plate lOd preferably has a roughened or non-skid surface lOe suitable for placement on a floor or mat, so that the pump does not skid when the user applies pressure with a foot.
  • the non-skid surface may be similar to sandpaper in having an abrasive, non-slippery texture that prevents easy movement across a floor or other surface.
  • Inlet and outlet valves 1 1, 16 may be adhered to the valve housing 10b with PVC cement. Valve housing 10b is then adhered to the pump housing 10a, also with PVC cement. Outlet tubing 17 and fitting 18 may also be secured with PVC cement. Other connections may be cemented or may be pressed on tightly to avoid leaks.
  • Pump body 10 may have a generally rectangular footprint as shown in Fig. 1, with dimensions of about five inches long by about three inches wide, and with an overall fluid capacity of from about 25-500 ml, preferably from about 150- 350 ml. While the rectangular shape is preferred, other shapes may instead be used, such as a rounded body shape, an elliptical shape, or any other convenient shape.
  • the pump body is preferably angled, from about 20 degrees to about 40 degrees, as shown in Fig. 2, to accept a shoe of a user at a slight angle.
  • the pump body may have a portion on its top that is not angled but extends horizontally.
  • a user spikes a suspended irrigation bag with a spike 14. Connectors may instead be used on the bag and on the tubing. Suspending the irrigation bag several feet in the air provides enough head to flow the fluid through tubing 12 and valve 11 , into the pump and out of pump 10 and valve 16, through outlet tubing 17 and through the connector 18 to the ureteroscope or endoscope that requires irrigation.
  • the flow of fluid may be controlled using clamps 15, 19 for a desired flow rate.
  • a user desires a greater flow rate, or surge of fluid, the user applies pressure to the pump body 10 through his or her foot, and may also loosen or remove outlet clamp 19.
  • fluid in pump body 10 When pressure is applied, fluid in pump body 10 is forced through outlet valve 16, outlet tubing 17 and fitting 18, to the endoscope or other application. Fluid cannot flow through inlet valve 11 because it is a check valve or one-way valve allowing fluid only to enter the pump body. Of course, while pressure is applied to the pump body, fluid cannot enter the pump body through inlet valve 11 because the pressure inside the pump will be greater than the several feet of head provided by the suspended bag of irrigation fluid. When the user removes his or her foot and the pressure on the pump is relieved, fluid can then enter the pump from the inlet line, replenishing the fluid in the pump and allowing resumption of a normal, lower flow rate of irrigation fluid.
  • FIG. 3 depicts a diagrammatic view of the use of a foot pedal irrigation system 20 according to the present invention.
  • the foot pedal irrigation system 20 is connected to at least one bag 21 of saline or other irrigation solution with spike 14.
  • the system is connected via connector 18 to a mating connector of a diagnostic or therapeutic instrument 22.
  • Normal fluid flow is adjusted using clamps 15 on inlet tubing 12 and clamp 19 on outlet tubing 17.
  • the flow of fluid may be monitored with a vertical drip chamber 12a.
  • a physician or other operating personnel may then adjust the flow of fluid by pressing on pump body 10 with a foot to increase the flow of irrigation fluid, or may step off to decrease the flow.
  • the flow of irrigation fluid, and the control of the visual field may be under the direct control of the physician, if he or she desires, without having to go through an assistant, by merely pressing with a foot or removing pressure by ceasing to press with the foot.
  • This allows the physician to use his or her hands as desired, such as operating a diagnostic or therapeutic instrument, such as a hysteroscope, an endoscope, a ureteroscope, and so forth.
  • a diagnostic or therapeutic instrument such as a hysteroscope, an endoscope, a ureteroscope, and so forth.
  • This allows the physician more control in real time without having to go through the assistant, thus making for a faster response from the irrigation system.
  • the user's hands are free for other uses.
  • the invention has been described as a foot pedal irrigation system, and embodiments of the invention have been characterized as operated by a foot of a user.
  • the foot pedal irrigation system, and the pump body may be elevated, as by placing on a chair or stool, and operated by a knee of a user.
  • the pump may also be squeezed and operated by using the hand or hands of an operator, though this mode of operation is not as convenient as using a foot. All these methods of use are meant to be included within the scope of the claims.
  • the pump body has been described as manufactured with an upward angle to accommodate the foot of a user.
  • the pump body may also be made flat, and would still work for its intended purpose, albeit not as conveniently as with the angled surface, so long as a foot of a user can bring pressure to bear.
  • the pump body has been described as roughly rectangular in its footprint; other configurations and footprints, however, will also work, such as square, round, elliptical or irregular configurations. A rectangular configuration is more easily tooled and manufactured.
  • the various volumes and dimensions needed to design the pump are more easily calculated with known, linear shapes, rather than other shapes, which may be used instead. [0026] Accordingly, it is the intention of the applicants to protect all variations and modifications within the valid scope of the present invention. It is intended that the scope and spirit of the invention be defined by the following claims, including all equivalents.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne un système d'irrigation à pédale permettant à un médecin ou à toute autre personne de service de commander le flux d'un fluide d'irrigation dans un dispositif diagnostique ou thérapeutique sans utilisation des mains. Le système se fixe à une ou à plusieurs poches de fluide d'irrigation (21) et il utilise des pinces sur la tubulure d'entrée et de sortie. Le système peut comprendre une chambre (12a) de goutte-à-goutte visuel permettant de contrôler l'écoulement du fluide sans application de pression à une pompe à pied (10) laquelle fait partie du système. Lorsque davantage d'irrigation est souhaitée, l'utilisateur presse avec son pied sur la pompe à pédale, des valves unidirectionnelles assurent l'écoulement unidirectionnel accru du fluide de la pompe vers le dispositif diagnostique ou thérapeutique.
PCT/US2004/024456 2003-07-30 2004-07-28 Systeme d'irrigation a pompe a pied WO2005011776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49102403P 2003-07-30 2003-07-30
US60/491,024 2003-07-30

Publications (1)

Publication Number Publication Date
WO2005011776A1 true WO2005011776A1 (fr) 2005-02-10

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PCT/US2004/024456 WO2005011776A1 (fr) 2003-07-30 2004-07-28 Systeme d'irrigation a pompe a pied

Country Status (2)

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US (1) US20050025646A1 (fr)
WO (1) WO2005011776A1 (fr)

Cited By (5)

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WO2009092380A1 (fr) * 2008-01-21 2009-07-30 Coloplast A/S Système d'irrigation
WO2010132878A3 (fr) * 2009-05-15 2011-02-03 Us Endoscopy Pompe manuelle d'irrigation pour irrigation intraprocédurale
USD848608S1 (en) 2016-10-21 2019-05-14 Coloplast A/S Base unit for anal irrigation and controller
US10369268B2 (en) 2014-09-19 2019-08-06 Coloplast A/S Anal irrigation system
US10532148B2 (en) 2014-09-19 2020-01-14 Coloplast A/S Irrigation system container

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US8870756B2 (en) 2010-10-08 2014-10-28 ERBE-USA, Inc. Hybrid apparatus for fluid supply for endoscopic irrigation and lens cleaning
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USD750235S1 (en) 2014-03-19 2016-02-23 ERBE-USA, Inc. Endoscope connector
US9585547B2 (en) 2014-11-24 2017-03-07 Gyrus Acmi, Inc. Adjustable endoscope sheath
US9345386B1 (en) 2014-11-24 2016-05-24 Gyrus Acmi, Inc. Adjustable endoscope sheath
US9782525B2 (en) 2015-01-08 2017-10-10 Gyrus Acmi, Inc. Multi-way valve for a medical instrument
US20230158227A1 (en) * 2021-11-23 2023-05-25 Carefusion 303, Inc. Intravenous blood set foot pump
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