WO1998022054A1 - Catheter valve - Google Patents
Catheter valve Download PDFInfo
- Publication number
- WO1998022054A1 WO1998022054A1 PCT/CH1997/000433 CH9700433W WO9822054A1 WO 1998022054 A1 WO1998022054 A1 WO 1998022054A1 CH 9700433 W CH9700433 W CH 9700433W WO 9822054 A1 WO9822054 A1 WO 9822054A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- valve
- valve according
- catheter valve
- valve housing
- Prior art date
Links
- 239000011324 bead Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000003932 urinary bladder Anatomy 0.000 description 2
- 210000001635 urinary tract Anatomy 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 206010011985 Decubitus ulcer Diseases 0.000 description 1
- 208000004210 Pressure Ulcer Diseases 0.000 description 1
- 206010046543 Urinary incontinence Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
- A61F5/4404—Details or parts
- A61F5/4405—Valves or valve arrangements specially adapted therefor ; Fluid inlets or outlets
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/741—Suction control with means for varying suction manually
- A61M1/7413—Suction control with means for varying suction manually by changing the cross-section of the line
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/741—Suction control with means for varying suction manually
- A61M1/7413—Suction control with means for varying suction manually by changing the cross-section of the line
- A61M1/7415—Suction control with means for varying suction manually by changing the cross-section of the line by deformation of the fluid passage
Definitions
- the present invention relates to a self-closing catheter valve according to the preamble of claim 1.
- Catheter valves include intended for use by patients suffering from urinary incontinence and the claimed catheter valve described here is used extra corporally.
- a catheter valve for extra-corporal use comprising a housing with a tubular flow-through device running through the housing, which can be connected at one end to the outlet of a catheter and, if appropriate, at the other end to a collecting container.
- the flow device is at least partially formed from an elastic, flexible tube which, at one point along the tube, is deformed (compression of the tube) and reset (return of the tube to its original form), triggered by an actuating mechanism, which performs the valve function. Tightness is important for catheter valves not only for hygienic but also for health reasons. These are cleanliness as comfort on the one hand and on the other hand for example avoidance of pressure ulcers and germ immigration based on catheters in the urinary tract and the bladder.
- the known catheter valve now works in such a way that when the spring legs are tensioned the shut-off bolt relieves the tube, while when the spring legs are relieved up to a certain constant residual tension the shut-off bolt compresses the tube with a correspondingly predetermined pressure force that is the same for all switching operations.
- This pressure force cannot be influenced in the known valve. Which triggers certain risks for the tightness of the shut-off of the pipe, in particular if, for example, solid urine deposits have accumulated on the inside of the pipe and therefore a higher pressure force would be required for a tight shut-off, which could not be influenced by the spring respiration is not available.
- the tightness of the valve is of particular importance for hygienic reasons.
- the invention uses a rack-and-pinion gearbox to achieve the specified object, the shut-off bolt, which compresses a hose, being arranged between the gearwheels and close to their circumference.
- the gears translate the rack movement into a rotary movement of the locking bar which deforms the hose against the rack, i.e. squeezed to seal the tube.
- the circumferential distance of the locking bar can thus be changed by changing the distance of the rack, this change being converted into a gradual change in the pressure force (also called the deformation force) of the locking bar.
- FIG. 2 shows a side view of one half of the housing of the catheter valve according to FIG. 1;
- Fig. 3 a schematic representation of a gear comprising a rack (hereinafter also called slide) and gears with shut-off bolt (hereinafter also called clamping piece) in the open position of the clamping piece;
- Fig. 4 the gear ass GE Figure 3 with the clamp in the closure.
- Fig. 5 a clamping piece in side view with a hose in vertical section.
- 10 designates a catheter valve designed according to the invention.
- the catheter valve 10 comprises a valve housing 11 with a push-on connector 12 for a catheter (not shown).
- Push-on socket 12 and valve housing 11 are axially traversed by a bore 13 (FIG. 2).
- the plug-in connection 12, which is designed to rise conically in the direction of the valve housing 11, has a widening 14 or circumferential annular bead 14 at its upstream inlet end and a circumferential recess 15 or channel 15 at its transition to the valve housing 11.
- the annular bead 14 ensures that all common catheter types or catheter connection devices can be tightly connected to the catheter valve 10 according to the invention.
- the secure hold of the catheter connection devices (not shown), even of such a non-conical configuration, is achieved by means of the channel 15.
- the design of the push-on connector 12 as an extension of a conical configuration with annular bead 14 and channel 15 equips the inventive catheter valve 10 with the advantage to be universally usable for all common catheter types or catheter connection devices.
- the valve housing 11 is designed free of sharp edges and projections to ensure a high level of comfort. Furthermore, this surface design, which is suitable for the wearer or user, should help to rule out wearers' decubitus complaints or at least to reduce them to a minimum. Another goal of the special surface design of the valve housing 11 is to make the operating comfort of the catheter valve 10 as good as possible.
- the best possible ease of use in connection with the invention is understood to mean one-handed operation in at least three different hand positions to the catheter valve 10 without tilting and thus sliding the catheter valve 10 out of hand. This objective is achieved through finger guides 16, 17 and 18.
- the bore 13 On the upstream side, the bore 13 has an inlet opening 21 and on the downstream side an outlet opening 20.
- a plug device 22 accommodated in the valve housing 11 is connected to the outlet opening 20 and consists of a conical bore which, starting from the bore 13 of smaller diameter than the outlet opening 20, widens in the direction of the latter.
- This plug-in device 22 designed in this way enables a direct, ie intermediate piece or adapter-free, direct connection of a delivery hose (not shown), for example the hose or connection of a container for example, a urine bag provided on the downstream side.
- Fig. 2 shows a half 23 of the longitudinally divided valve housing 11 with push-on connector 12. This division is necessary to rotatably mount a gear 25, 26 in each half and to accommodate the rack 27 in the housing in the longitudinal direction so as to be displaceable.
- Fig. 2 shows a half 23 without installation or representation of the rack 27 / gears 25, 26 of the transmission with shut-off bolt 28, hereinafter called shut-off device 29.
- the shut-off device 29 (FIGS. 3, 4) which interacts with a hose 30 received in the bore 13 - the hose 30 consists of a soft, elastic plastic - is received at A in the valve housing 11.
- the shut-off device 29 consists of a slide 27 which is guided in the longitudinal direction in the valve housing 11.
- the teeth 31 of the slide 30 engage teeth 32 of the gear wheels 25, 26, so that gear wheels 25, 26 rotate when the slide 27 is displaced.
- two gears 25, 26 are provided according to the invention, one of which is rotatably arranged on a housing half 23.
- the gear wheels 25, 26 located opposite one another when the housing halves 23 are united, that is, there is a distance between their free end faces 33, 34 in which the hose 30 is received.
- a gear 25 or 26 carries on or near its circumference and on the free end face 33 or 34 the clamping piece 28, which extends horizontally in the direction of the upstream side end of the valve body 11 and the push-on connector 12 extends.
- the width of the clamping piece 28 is dimensioned such that the clamping piece 28 is received between the gear wheels 25, 26.
- the thickness of the clamp 28, i.e. the thickness of the end face 36 is dimensioned such that the end face 36 in the closed position at least the head of a tooth 31, preferably two tooth heads, overlaps an intermediate tooth space of the toothing of the slide 27, in the latter embodiment two spaced-apart barriers of different deformation with an unloaded zone in between (at the tooth gap) arise.
- 4, 37 denotes a compression spring, which is held at one end on the valve housing, preferably held partially in a bore 38 and acts supported on the slide 27 and, as shown in FIG. 4, holds it in the closed position.
- Fig. 3 which shows the open position of the shut-off device 29, the compression spring 37 is shown compressed, the slide 27 being held manually in the position shown.
- the slide 27 and thus the shut-off device 29 can be held in the open position, a position which is always set when a continuous flow through the catheter valve 10 according to the invention is desired.
- the hose 30 essentially fulfills two functions. On the one hand it serves as a valve which can be actuated by the slide 27 and through which the flowing medium flows in the open position, on the other hand the hose 30 seals the interior of the bore 13 against recesses and guides for the slide 27 and gear wheels 25, 26.
- the material for all parts of the catheter valve 10 according to the invention is preferably a plastic which permits problem-free cleaning, disinfection and sterilization of the catheter valve 10 at a temperature greater than 130 ° C. Sterilization at the named temperature creates the basis or prerequisite for hygienically safe use of the catheter valve according to the invention. Likewise, the sterilization capability permits multiple use of the catheter valve 10. Not sufficiently tight catheter valves not only allow uncontrolled amounts of liquid to escape from the valve, they also favor germ migration from the valve into the urinary tract and bladder. This germ migration and health hazard of a catheter carrier is suppressed due to the tightness of the catheter valve 10 according to the invention.
- the operation of the catheter valve 10 is as follows.
- the shut-off device 29 is in the open position (FIG. 3).
- the hose 30 undeforms the distance between the gears 25, 26 and the clamping piece 28 in disengagement from the hose 30.
- the slide 27 was previously moved in the direction of the upstream end of the valve housing 11 with compression of the compression spring 37 .
- the slide 27 can be held in this position manually or by a locking device (not shown). If the shut-off device 28 is to be brought into the closed position (FIG.
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Epidemiology (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97911099A EP0884990A1 (en) | 1996-11-21 | 1997-11-17 | Catheter valve |
AU48603/97A AU4860397A (en) | 1996-11-21 | 1997-11-17 | Catheter valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2868/96 | 1996-11-21 | ||
CH286896 | 1996-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998022054A1 true WO1998022054A1 (en) | 1998-05-28 |
Family
ID=4243390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000433 WO1998022054A1 (en) | 1996-11-21 | 1997-11-17 | Catheter valve |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0884990A1 (en) |
AU (1) | AU4860397A (en) |
WO (1) | WO1998022054A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497175A (en) * | 1967-09-11 | 1970-02-24 | Betty K Koland | Fluid regulator and closure valve |
US3802463A (en) * | 1972-07-31 | 1974-04-09 | Cutter Lab | Flow control apparatus |
DE3909634A1 (en) * | 1989-03-23 | 1990-09-27 | Medinorm Ag | Hose clamping device for medical purposes |
EP0546712A2 (en) * | 1991-12-13 | 1993-06-16 | Endovascular Technologies, Inc. | Large-diameter expandable sheath and method |
WO1993024173A1 (en) * | 1992-06-02 | 1993-12-09 | Profiform Ag | Self-closing catheter valve |
-
1997
- 1997-11-17 AU AU48603/97A patent/AU4860397A/en not_active Abandoned
- 1997-11-17 EP EP97911099A patent/EP0884990A1/en not_active Withdrawn
- 1997-11-17 WO PCT/CH1997/000433 patent/WO1998022054A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497175A (en) * | 1967-09-11 | 1970-02-24 | Betty K Koland | Fluid regulator and closure valve |
US3802463A (en) * | 1972-07-31 | 1974-04-09 | Cutter Lab | Flow control apparatus |
DE3909634A1 (en) * | 1989-03-23 | 1990-09-27 | Medinorm Ag | Hose clamping device for medical purposes |
EP0546712A2 (en) * | 1991-12-13 | 1993-06-16 | Endovascular Technologies, Inc. | Large-diameter expandable sheath and method |
WO1993024173A1 (en) * | 1992-06-02 | 1993-12-09 | Profiform Ag | Self-closing catheter valve |
Also Published As
Publication number | Publication date |
---|---|
EP0884990A1 (en) | 1998-12-23 |
AU4860397A (en) | 1998-06-10 |
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