CA2244050A1 - Wound irrigation device - Google Patents

Wound irrigation device

Info

Publication number
CA2244050A1
CA2244050A1 CA 2244050 CA2244050A CA2244050A1 CA 2244050 A1 CA2244050 A1 CA 2244050A1 CA 2244050 CA2244050 CA 2244050 CA 2244050 A CA2244050 A CA 2244050A CA 2244050 A1 CA2244050 A1 CA 2244050A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
fluid
inlet
tube
outlet
chamber
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA 2244050
Other languages
French (fr)
Inventor
Simon Phaneuf
Stephane Tetreault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADVANCED THERAPEUTIC TECHNOLOGIES Inc
Original Assignee
ADVANCED THERAPEUTIC TECHNOLOGIES INC.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • A61M3/02Enemata; Irrigators
    • A61M3/0279Cannula; Nozzles; Tips; their connection means
    • A61M3/0287Cannula; Nozzles; Tips; their connection means with an external liquid collector
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0001Containers for suction drainage, e.g. rigid containers
    • A61M1/0005Containers for suction drainage, e.g. rigid containers with means for emptying the suction container, e.g. by interrupting suction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/05Splash shields for protection of the surgeon, e.g. splash guards connected to the apparatus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • A61M3/02Enemata; Irrigators
    • A61M3/0279Cannula; Nozzles; Tips; their connection means
    • A61M3/0283Cannula; Nozzles; Tips; their connection means with at least two inner passageways, a first one for irrigating and a second for evacuating

Abstract

A device for irrigating a wound with a fluid, comprises a syringe having a hollow body defining a chamber adapted to contain the fluid, and a plunger movable within the body. An inlet tube is connected to the body and is in fluid flow communication with the chamber for filling the chamber with the fluid in response to an outward displacement of the plunger relative to the body. An outlet tube is connected to the body and is in fluid flow communication with the chamber for discharging the fluid from the chamber onto the wound in response to an inward displacement of the plunger within the body. The inlet and outlet tubes have respective free ends disposed adjacent to one another.
The device according to the invention further includes valve means for selectively allowing the fluid to flow through the inlet tube and into the chamber during the outward displacement of the plunger, and for preventing the fluid from flowing from the chamber through the inlet tube during the inward displacement of the plunger. Such a wound irrigation device is easy to use and rapid to operate.

Description

"WOUND IRRIGATION DEVICE"
The present invention pertains to improvements in the field of medical care. More particularly, the invention relates to an improved wound irrigation device.
Wounds require irrigation or washing with a fluid such as sterile water, a sterile saline solution or a Ringer lactate solution in order to dislodge any foreign particules contaminating the wound. Various wound irrigation systems are known. One such system comprises a syringe with a plunger movable therein and a one-way valve, a first flexible conduit connecting the valve to a bulk container of fluid for filling the syringe with fluid from the bulk container in response to an outward displacement of the plunger, and a second flexible conduit connected to the syringe for discharging the fluid therefrom onto the wound in response to an inward displacement of the plunger, the valve preventing the outflow of fluid back into the bulk container during the inward displacement of the plunger. Such a wound irrigation system is not only time-consuming to install, but also requires several pieces which add to the cost.
Another type of wound irrigation device is known, which consists of a syringe having a plunger movable therein and a single tube which serve for both filling the syringe with fluid and discharging the fluid therefrom onto a wound. Since use is made of a single tube having a diameter such as to provide a fluid pressure sufficient to adequately irrigate the wound, the filling operation is difficult and time-consuming.
It is therefor an object of the present invention to overcome the above drawbacks and to provide an improved wound irrigation device.
According to the invention, there is provided a device for irrigating a wound with a fluid, comprising a syringe having a hollow body defining a chamber adapted to contain the fluid, and a plunger movable within the body. An inlet tube is connected to the body and is in fluid flow communication with the chamber for filling the chamber with the fluid in response to an outward displacement of the plunger relative to the body. An outlet tube is connected to said body and is in fluid flow communication with the chamber for discharging the fluid from the chamber onto the wound in response to an inward displacement of the plunger within the body, the inlet and outlet tubes have respective free ends disposed adjacent to one another. The device of the invention further includes valve means for selectively allowing the fluid to flow through the inlet tube and into the chamber during the outward displacement of the plunger, and for preventing the fluid from flowing from the chamber through the inlet tube during the inward displacement of the plunger.
In a preferred embodiment of the invention, the inlet and outlet tubes extend parallel to one another.
Preferably, the inlet and outlet tubes extend side-by side with the free end of the outlet tube extending beyond the free end of the inlet tube. Since in use the free end of the outlet tube is positioned in close proximity to the wound, such an embodiment prevents the free end of the inlet tube from being contaminated by the wound. It also facilitates the irrigation procedure since the free end of the inlet tube does not conceal the free end of the outlet tube from one's view so that the latter can be more easily positioned with respect to the wound.
According to another preferred embodiment, the valve means comprises a check valve adapted to selectively close the inlet tube in response to the inward displacement of the plunger, and to open the inlet

- 2 -tube in response to the outward displacement of the plunger. Preferably, the check valve comprises a valve body defining a valve chamber in fluid communication with the inlet tube, and a valve member movable in the valve chamber between close and open positions to selectively close and open the inlet tube.
According to a further preferred embodiment, the outlet tube has a fluid passageway with a first diameter and the free end of the outlet tube defines a fluid discharge orifice having a second diameter smaller than the first diameter, whereby to increase pressure of the fluid discharged from the orifice.
According to yet another preferred embodiment, the device further includes fluid splash arresting means mounted on the inlet and outlet tubes for preventing fluid splashes contaminated by the wound from reaching the user of the device during the inward displacement of the plunger. Preferably, the fluid splash arresting means comprises a parabolic member having a central axis and an opening defined therethrough, the opening being off-centered relative to the central axis. The inlet and outlet tubes extend through the opening. The parabolic member is slidably mounted on the inlet and outlet tubes for adjustable positioning therealong and the central axis of the parabolic member is inclined with respect to the longitudinal axes of the inlet and outlet tubes, preferably at an angle of up to about 30°.
Further features and advantages of the invention will become more readily apparent from the following description of preferred embodiments as illustrated by way of examples in the accompanying drawings, in which:
Figure 1 is a perspective view of a wound irrigation device according to a preferred embodiment of the invention;

- 3 -Figure 2 is a fragmented sectional view of the device shown in Fig, 1; and Figure 3 is a partial perspective view of a wound irrigation device according to another preferred embodiment of the invention.
Referring first to Figs 1 and 2, there is illustrated a wound irrigation device which is generally designated by reference numeral 10 and comprises a syringe 12, a plunger 14, inlet and outlet tubes 16,18 and a check valve 20. The syringe 12 has a hollow body 22 defining a chamber 24 adapted to contain a fluid suitable for irrigating a wound (not shown), the body 22 being provided at one end with a finger flange 26. The plunger 14 which is movable within the body 22 includes a stem 28 provided at an inner end with a rubber head 30 and at an outer end with a thumb rest 32.
The inlet tube 16 is integral with the body 22 and is in fluid flow communication with the chamber 24 for filling the chamber with fluid in response to an outward displacement of the plunger 14 relative to the body 22. The outlet tube 18 is also integral with the body 22 and is in fluid flow communication with the chamber 24 for discharging the fluid from the chamber onto the wound in response to an inward displacement of the plunger 14 within the body 22. The inlet and outlet tubes 16,18 extend side-by-side and have respective free ends 34, 36 disposed adjacent one another. As shown, the free end 36 of the outlet tube 18 extends beyond the free end 34 of the inlet tube 16.
The check valve 20 is operative for selectively allowing the fluid to flow through the inlet tube 16 and into the chamber 24 in response the outward displacement of the plunger 14, and for preventing the fluid from flowing from the chamber 24 through the inlet tube 16 in response to the inward displacement of the plunger 14.

- 4 -As best shown in Fig. 2, the check valve 20 comprises a valve body 38 defining a valve chamber 40 in fluid flow communication with the fluid passageway 42 of inlet tube 16, and a cylindrical valve member 44 movable in the valve chamber 40 between close and open positions to selectively close and open the fluid passageway 42.
Planar elongated guide members 46 each provided with an abutment 48 are arranged in the valve chamber 40 so that the valve member 44 is movable along limited guided path, the abutments 48 serving to arrest the valve member 44 in the open position.
As also shown in Fig. 2, the outlet tube 18 has a fluid passageway 50 with a first diameter and the free end 36 of the outlet tube 18 defines a fluid discharge orifice 52 having a second diameter smaller than the first diameter, whereby to increase the pressure of the fluid discharged from the orifice 52.
In operation, the inlet and outlet tubes 16,18 inserted are into a bulk container (not shown) of fluid so that the free ends 34, 36 are immersed into the fluid, the plunger 14 is displaced outwardly to draw fluid from the bulk container through the inlet tube 16 and into the chamber 24 of the syringe 12, with the valve member 44 moving to the open position, the tubes 16,18 are removed from the bulk container and directed towards a wound to be irrigated, and the plunger 14 is displaced inwardly within the syringe body 22 to cause the fluid to flow from the chamber 24 through the outlet tube 18 so as to be discharged under pressure from the orifice 52 onto the wound. As the plunger 14 is displaced inwardly within the syringe body 22, the valve member 44 moves to the close position, thereby preventing the fluid from flowing from the chamber 24 through the inlet tube 16. The head 30 of the plunger 14 is provided with rubber sealing

- 5 -rings 54 to ensure a fluid tight seal during displacement of the plunger 14.
Since in use the free end 36 of the outlet tube 18 is positioned in close proximity to the wound, and in order to present fluid splashes contaminated by the wound form reaching the user during the inward displacement of the plunger 14, a parabolic fluid splash arresting member 56 is mounted on the inlet and outlet tubes 16,18. The member 56 has an opening (not shown) which is defined therethrough and off-centered relative to the central axis (not shown) of the member 56, the inlet and outlet tubes 16,18 extending through the opening. The central axis of the member 56 is inclined at an angle of about 30° relative to the longitudinal axes of the inlet and outlet tubes 16,18 to provide a better protection. In addition, the member 56 is slidably mounted on the inlet and outlet tubes 16,18 for adjustable positioning therealong.
Figure 3 illustrates a wound irrigation device 10' according to another preferred embodiment of the invention. In the device 10', the syringe 12', tubes 16',18', valve 20' and syringe body 22' are the same as the syringe 12, tubes 16,18, valve 20 and syringe body 22 of the device 10 shown in Figs 1 and 2, with the exception that the inlet and outlet tubes 16,18' are removably connected to the body 22' by means of a Luer-lock type coupling system 58. Such a coupling system comprises an adapter 60 having a finger-grip portion 62 and a threaded portion 64, and a threaded socket 66 which is integral with the body 22' and into which the threaded portion 64 of the adapter 60 is releasably engaged.
The wound irrigation devices 10 and 10' are entirely made of polypropylene.

- 6 -

Claims (15)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A device for irrigating a wound with a fluid, comprising:
a syringe having a hollow body defining a chamber adapted to contain said fluid, and a plunger movable within said body;
an inlet tube connected to said body and in fluid flow communication with said chamber for filling said chamber with said fluid in response to an outward displacement of said plunger relative to said body;
an outlet tube connected to said body and in fluid flow communication with said chamber for discharging said fluid from said chamber onto said wound in response to an inward displacement of said plunger within said body, said inlet and outlet tubes having respective free ends disposed adjacent to one another;
and valve means for selectively allowing said fluid to flow through said inlet tube and into said chamber during said outward displacement of said plunger, and for preventing said fluid from flowing from said chamber through said inlet tube during said inward displacement of said plunger.
2. A device according to claim 1, wherein said inlet and outlet tubes extend parallel to one another.
3. A device according to claim 2, wherein said inlet and outlet tubes extend side-by-side.
4. A device according to claim 3, wherein the free end of said outlet tube extends beyond the free end of said inlet tube.
5. A device according to claim 1, wherein said valve means comprises a check valve adapted to selectively close said inlet tube in response to said inward displacement of said plunger, and to open said inlet tube in response to said outward displacement of said plunger.
6. A device according to claim 5, wherein said check valve comprises a valve body defining a valve chamber in fluid communication with said inlet tube, and a valve member movable in said chamber between close and open positions to selectively close and open said inlet tube.
7. A device according to claim 6, further including guide means arranged in said valve chamber so that said valve member is movable along a limited guided path.
8. A device according to claim 1, wherein said outlet tube has a fluid passageway with a first diameter and wherein the free end of said outlet tube defines a fluid discharge orifice having a second diameter smaller than said first diameter, whereby to increase pressure of said fluid discharged from said orifice.
9. A device according to claim 3, further including fluid splash arresting means mounted on said inlet and outlet tubes for preventing fluid splashes contaminated by said wound from reaching a user of said device during inward displacement of said plunger.
10. A device according to claim 9, wherein said fluid splash arresting means comprises a parabolic member having a central axis and an opening defined therethrough, said opening being off-centered relative to said central axis, and wherein said inlet and outlet tubes extend through said opening.
11. A device according to claim 10, wherein said parabolic member is slidably mounted on said inlet and outlet tubes for adjustable positioning therealong.
12. A device according to claim 10, wherein said inlet and outlet extend along respective longitudinal axes and wherein the central axis of said parabolic member is inclined with respect to said longitudinal axes.
13. A device according to claim 12, wherein the center axis of said parabolic member is inclined at an angle of up to about 30°.
14. A device according to claim 1, further including releasable coupling means for removably connecting said inlet and outlet tubes to said body.
15. A device according to claim 14, wherein releasable coupling means comprises a Luer-lock type coupling system.
CA 2244050 1998-07-28 1998-07-28 Wound irrigation device Abandoned CA2244050A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2244050 CA2244050A1 (en) 1998-07-28 1998-07-28 Wound irrigation device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA 2244050 CA2244050A1 (en) 1998-07-28 1998-07-28 Wound irrigation device
PCT/CA1999/000692 WO2000006219A1 (en) 1998-07-28 1999-07-28 Wound irrigation device
CA 2278968 CA2278968A1 (en) 1998-07-28 1999-07-28 Wound irrigation device

Publications (1)

Publication Number Publication Date
CA2244050A1 true true CA2244050A1 (en) 2000-01-28

Family

ID=4162706

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2244050 Abandoned CA2244050A1 (en) 1998-07-28 1998-07-28 Wound irrigation device

Country Status (2)

Country Link
CA (1) CA2244050A1 (en)
WO (1) WO2000006219A1 (en)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE174572C (en) *
US1564146A (en) * 1924-05-17 1925-12-01 Angelo L Soresi Apparatus for surgical uses
US3674016A (en) * 1970-06-25 1972-07-04 Gino Leucci Shield for endoscopic instruments
US3831629A (en) * 1972-01-24 1974-08-27 Halkey Roberts Corp Check valve
US3957052A (en) * 1974-09-13 1976-05-18 Medical Development Corporation Pumping-syringe
US4784637A (en) * 1987-03-23 1988-11-15 Ryder International Corporation Aseptic irrigation syringe
US4834068A (en) * 1988-03-18 1989-05-30 Gottesman James E Barrier shield method and apparatus for optical-medical devices
US4898588A (en) * 1988-10-17 1990-02-06 Roberts Christopher W Hypodermic syringe splatter shield
US5766211A (en) * 1993-02-08 1998-06-16 Wood; Jan Medical device for allowing insertion and drainage into a body cavity
US5407424A (en) * 1993-02-24 1995-04-18 Scimed Life Systems, Inc. Angioplasty perfusion pump
FR2717696B1 (en) * 1994-03-24 1996-05-31 Assist Publ Hopitaux De Paris dual port syringe.
US5496284A (en) * 1994-09-27 1996-03-05 Waldenburg; Ottfried Dual-chamber syringe & method
US5496290A (en) * 1994-11-23 1996-03-05 Ackrad Laboratories, Inc. Wound irrigation splash shield
ES2158548T3 (en) * 1996-09-18 2001-09-01 Sinu Shunt As Device for the treatment of hydrocephalus.
US6293929B1 (en) * 1997-09-02 2001-09-25 Steven M. Smith Wound irrigation apparatus

Also Published As

Publication number Publication date Type
WO2000006219A1 (en) 2000-02-10 application

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