WO1997021386A1 - Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration - Google Patents

Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration Download PDF

Info

Publication number
WO1997021386A1
WO1997021386A1 PCT/EP1996/005511 EP9605511W WO9721386A1 WO 1997021386 A1 WO1997021386 A1 WO 1997021386A1 EP 9605511 W EP9605511 W EP 9605511W WO 9721386 A1 WO9721386 A1 WO 9721386A1
Authority
WO
WIPO (PCT)
Prior art keywords
aspiration
cutoff valve
shutter
curved portion
ports
Prior art date
Application number
PCT/EP1996/005511
Other languages
French (fr)
Inventor
Lucio Gibertoni
Paolo Bergamaschi
Original Assignee
Mallinckrodt Medical S.P.A.
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 Mallinckrodt Medical S.P.A. filed Critical Mallinckrodt Medical S.P.A.
Priority to AU13694/97A priority Critical patent/AU1369497A/en
Publication of WO1997021386A1 publication Critical patent/WO1997021386A1/en

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
    • 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
    • A61M1/7411—Suction control with means for varying suction manually by changing the size of a vent

Definitions

  • the present invention relates to a cutoff valve for aspiration lines, particularly for tracheobronchial aspiration.
  • Aspiration is normally kept active at all times and aspiration at the tube is interrupted by means of a manual cutoff valve.
  • Cutoff valves can currently be constituted by shunts and cutoff valves.
  • Shunts in practice are provided by means of a body which forms a port for connection to an aspiration line and a port for connection to the tube; a port is also provided which is connected to the outside and has a larger cross-section than the tube.
  • Cutoff valves have a shutter, provided in the most disparate manners, which keeps the line for connection to the tube and to the outside normally closed, allowing to activate the aspiration at the tube when necessary.
  • a principal aim of the invention is to eliminate the above-described drawbacks by providing a cutoff valve for aspiration lines, particularly for tracheobronchial aspiration, which allows to keep the aspiration line cut off, without having a connection to the outside and without having to use a conventional valve element obtained by means of a plurality of mutually assembled components.
  • a particular object of the invention is to provide a cutoff valve that is particularly light and handy, thus facilitating its use.
  • Another object of the present invention is to provide a cutoff valve which, by means of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • a further object of the present invention is to provide a cutoff valve that can be easily obtained starting from commonly commercially available elements and materials and is also competitive from a merely economical point of view.
  • a cutoff valve for aspiration lines comprising a valve body which forms a first port, which can be connected to an aspiration source, and a second port, which can be connected to a tube and the like, said ports being interconnected, characterized in that it comprises a shutter which controls the connection between said ports and is supported by an elastic curved portion formed monolithically with said valve body.
  • figure 1 is a schematic perspective view of the cutoff valve according to the invention, in the open position;
  • figure 2 is a sectional view of the cutoff valve, taken along a median plane, in the configuration assumed during molding;
  • figure 3 is a top plan view of the cutoff valve;
  • figure 4 is a sectional view of the cutoff valve in the cutoff position;
  • figure 5 is a sectional view of the cutoff valve in the open position.
  • the cutoff valve for aspiration lines particularly tracheobronchial aspiration, according to the invention, generally designated by the reference numeral 1, comprises a valve body 2 which is made of a plastic material that is compatible with its particular use.
  • the valve body 2 forms a first port 3, which can be connected to an aspiration source which can be constituted by a centralized vacuum line or by an aspiration pump, and a second port 4, which can be connected to a tube and the like.
  • the ports 3 and 4 are preferably arranged so as to be mutually aligned and are interconnected; the first port 3 also preferably but not necessarily has a larger cross- section than the second port 4.
  • a cavity 10 wherein a shutter 11 can be slidingly accommodated; said shutter is constituted by a plate made of plastics wherethrough an opening 12 is provided.
  • the shutter 11 is connected to an elastic curved portion 20 by means of a stress raiser 21 which allows a certain flexibility in the interconnection region.
  • the elastic curved portion 20 is connected to a support 30, provided monolithically with the body 2, by means of a bending line 31.
  • the elastic curved portion 20 has a coupling tooth 32, which can be coupled in a snap-together fashion in a slot 35 formed on the support 30 on the opposite side with respect to the bending line 31.
  • the elastic curved portion 20 is formed monolithically with the valve body 2 and constitutes in practice the elastic actuation element of the shutter 11. In the closed position, the elastic curved portion 20 in fact keeps the shutter 11 in raised position, so that a solid region of the shutter is arranged along the line connecting the ports 3 and 4, thus cutting off the connection, as shown in figure 4.
  • the shutter 11 By compressing the curved portion 20, the shutter 11 is caused to shift, so that the through opening 12 is arranged along the connection between the port 3 and the port 4, thus allowing to connect to the aspiration the tube that is connected to the port 4.
  • a clip 40 which allows to apply the cutoff valve in a suspended manner and also acts as a locator element for the fingers when compression is applied to the curved portion 20 to open the connection.
  • a cutoff valve which is constituted by a single piece made of plastics and allows to obtain the typical characteristics of cutoff valves having a shutter actuated by springs and constituted, as mentioned earlier, by a plurality of mutually assembled components.
  • the invention allows to have a single piece which is made of plastics and is therefore light, handy and inexpensive, and allows to perform the same function as a cutoff valve having a much more complicated construction.
  • the invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.

Abstract

A cutoff valve for aspiration lines, particularly tracheobronchial aspiration, comprising a valve body (2) which forms a first port (3), which can be connected to an aspiration source, and a second port (4), which can be connected to a tube and the like, the ports (3, 4) being interconnected. The cutoff valve further comprises a shutter (11) which controls the connection between said ports (3, 4) and is supported by an elastic curved portion (20) formed monolithically with the valve body (2).

Description

CUTOFF VALVE FOR ASPIRATION LINES, PARTICULARLY FOR TRACHEOBRONCHIAL ASPIRATION Technical Field
The present invention relates to a cutoff valve for aspiration lines, particularly for tracheobronchial aspiration. Background Art
Conventional aspiration tubes, connected to vacuum lines which can be centralized or connected to aspiration pumps, are used in order to perform tracheobronchial aspiration on intubated patents subjected to mechanical ventilation.
Aspiration is normally kept active at all times and aspiration at the tube is interrupted by means of a manual cutoff valve.
Cutoff valves can currently be constituted by shunts and cutoff valves. Shunts in practice are provided by means of a body which forms a port for connection to an aspiration line and a port for connection to the tube; a port is also provided which is connected to the outside and has a larger cross-section than the tube.
With this arrangement, in normal conditions aspiration is performed towards the outside, not towards the tube, and when the tube is to be placed under aspiration it is sufficient to close the port that provides connection to the outside.
These devices are structurally very simple but have the drawback that they keep the aspiration line constantly connected to the outside, with consequent useless waste.
Cutoff valves have a shutter, provided in the most disparate manners, which keeps the line for connection to the tube and to the outside normally closed, allowing to activate the aspiration at the tube when necessary.
This embodiment, which is certainly more practical from a functional point of view, has the drawback that it requires a cutoff valve, which must be produced in a plurality of mutually assembled parts and with elastic elements, such as springs and the like, which act on the shutter. Disclosure of the Invention A principal aim of the invention is to eliminate the above-described drawbacks by providing a cutoff valve for aspiration lines, particularly for tracheobronchial aspiration, which allows to keep the aspiration line cut off, without having a connection to the outside and without having to use a conventional valve element obtained by means of a plurality of mutually assembled components.
Within the scope of this aim, a particular object of the invention is to provide a cutoff valve that is particularly light and handy, thus facilitating its use. Another object of the present invention is to provide a cutoff valve which, by means of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
A further object of the present invention is to provide a cutoff valve that can be easily obtained starting from commonly commercially available elements and materials and is also competitive from a merely economical point of view.
This aim, these objects, and others which will become apparent hereinafter are achieved by a cutoff valve for aspiration lines, particularly tracheobronchial aspiration, comprising a valve body which forms a first port, which can be connected to an aspiration source, and a second port, which can be connected to a tube and the like, said ports being interconnected, characterized in that it comprises a shutter which controls the connection between said ports and is supported by an elastic curved portion formed monolithically with said valve body. Brief Description of the Drawings
Further characteristics and advantages of the invention will become apparent from the following detailed description of a preferred but not exclusive embodiment of a cutoff valve for aspiration lines, particularly tracheobronchial aspiration, illustrated only by way of non-limitative example in the accompanying drawings, wherein: figure 1 is a schematic perspective view of the cutoff valve according to the invention, in the open position; figure 2 is a sectional view of the cutoff valve, taken along a median plane, in the configuration assumed during molding; figure 3 is a top plan view of the cutoff valve; figure 4 is a sectional view of the cutoff valve in the cutoff position; figure 5 is a sectional view of the cutoff valve in the open position.
Ways of carrying out the Invention With reference to the above figures, the cutoff valve for aspiration lines, particularly tracheobronchial aspiration, according to the invention, generally designated by the reference numeral 1, comprises a valve body 2 which is made of a plastic material that is compatible with its particular use.
The valve body 2 forms a first port 3, which can be connected to an aspiration source which can be constituted by a centralized vacuum line or by an aspiration pump, and a second port 4, which can be connected to a tube and the like.
The ports 3 and 4 are preferably arranged so as to be mutually aligned and are interconnected; the first port 3 also preferably but not necessarily has a larger cross- section than the second port 4.
In the region for connection between the ports 3 and 4 there is provided a cavity 10 wherein a shutter 11 can be slidingly accommodated; said shutter is constituted by a plate made of plastics wherethrough an opening 12 is provided.
The shutter 11 is connected to an elastic curved portion 20 by means of a stress raiser 21 which allows a certain flexibility in the interconnection region. The elastic curved portion 20 is connected to a support 30, provided monolithically with the body 2, by means of a bending line 31.
At the free end, the elastic curved portion 20 has a coupling tooth 32, which can be coupled in a snap-together fashion in a slot 35 formed on the support 30 on the opposite side with respect to the bending line 31.
An important feature of the invention resides in the fact that the elastic curved portion 20 is formed monolithically with the valve body 2 and constitutes in practice the elastic actuation element of the shutter 11. In the closed position, the elastic curved portion 20 in fact keeps the shutter 11 in raised position, so that a solid region of the shutter is arranged along the line connecting the ports 3 and 4, thus cutting off the connection, as shown in figure 4.
By compressing the curved portion 20, the shutter 11 is caused to shift, so that the through opening 12 is arranged along the connection between the port 3 and the port 4, thus allowing to connect to the aspiration the tube that is connected to the port 4.
It should be added to the above that on the opposite side with respect to the support 30 there is provided a clip 40, which allows to apply the cutoff valve in a suspended manner and also acts as a locator element for the fingers when compression is applied to the curved portion 20 to open the connection.
From the above description it is thus evident that the invention achieves the intended aim and objects, and in particular the fact is stressed that a cutoff valve is provided which is constituted by a single piece made of plastics and allows to obtain the typical characteristics of cutoff valves having a shutter actuated by springs and constituted, as mentioned earlier, by a plurality of mutually assembled components. in practice, the invention allows to have a single piece which is made of plastics and is therefore light, handy and inexpensive, and allows to perform the same function as a cutoff valve having a much more complicated construction. The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.
All the details may furthermore be replaced with other technically equivalent elements. In practice, the materials employed, as well as the contingent shapes and dimensions, may be any according to requirements.

Claims

1. A cutoff valve for aspiration lines, particularly tracheobronchial aspiration, comprising a valve body which forms a first port, which can be connected to an aspiration source, and a second port, which can be connected to a tube and the like, said ports being interconnected, characterized in that it comprises a shutter which controls the connection between said first and second ports and is supported by an elastic curved portion formed monolithically with said valve body.
2. A cutoff valve according to claim 1, characterized in that said first and second ports are mutually axially aligned and separated by a cavity wherein said shutter is slidingly accommodated.
3. A cutoff valve according to claim 2, characterized in that said shutter is constituted by a plate which is slideable in said cavity and is provided with a through opening which can be arranged at said ports to allow connection.
4. A cutoff valve according to claim 1, characterized in that said shutter is formed monolithically with said elastic curved portion.
5. A cutoff valve according to claim 1, characterized in that said shutter is connected, through a stress raiser, to a median portion of said elastic curved portion.
6. A cutoff valve according to claim 1, characterized in that said elastic curved portion is connected to the end of a support which is formed monolithically with said valve body, said curved portion being connected to said support by o
a bending line, said curved portion having, at its free end, a coupling tooth which can be inserted in a slot formed by said support.
7. A cutoff valve according to claim 1, characterized in that it comprises a clip formed monolithically with said valve body.
8. A cutoff valve according to claim 7, characterized in that said clip is arranged on the opposite side of said support on said valve body.
PCT/EP1996/005511 1995-12-14 1996-12-10 Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration WO1997021386A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13694/97A AU1369497A (en) 1995-12-14 1996-12-10 Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI95A002640 1995-12-14
IT95MI002640A IT1277979B1 (en) 1995-12-14 1995-12-14 SHUT-OFF VALVE FOR SUCTION LINES, IN PARTICULAR TRACHEOBRONCHIAL SUCTION

Publications (1)

Publication Number Publication Date
WO1997021386A1 true WO1997021386A1 (en) 1997-06-19

Family

ID=11372722

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/005511 WO1997021386A1 (en) 1995-12-14 1996-12-10 Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration

Country Status (3)

Country Link
AU (1) AU1369497A (en)
IT (1) IT1277979B1 (en)
WO (1) WO1997021386A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609520B1 (en) 2000-10-31 2003-08-26 Kimberly-Clark Worldwide, Inc. Closed suction catheter adaptor and assembly containing the same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543576A1 (en) * 1975-09-30 1977-04-07 Engel Joachim Michael Sterile extraction of bodily fluids by suction - has self closing valve pressed in manually to allow fluid passage to test zone
US4504266A (en) * 1979-12-14 1985-03-12 Anton Harle Variable aspiration draining instrument
US4589869A (en) * 1982-02-24 1986-05-20 Mediplast Ab Suction device and a method of manufacturing the same
US4662871A (en) * 1984-09-18 1987-05-05 Stephen Rafelson Disposable suction catheter and system for providing multiple suctioning capabilities during medical procedures or the like
US5035399A (en) * 1990-05-25 1991-07-30 C.R. Bard, Inc. Protective tubing clamp apparatus
WO1993008851A1 (en) * 1991-11-04 1993-05-13 Haemocell Plc Valve device
US5215522A (en) * 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
US5310406A (en) * 1992-05-08 1994-05-10 Sharpe Endosurgical Corporation Endoscopic aspirator surgical instrument

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543576A1 (en) * 1975-09-30 1977-04-07 Engel Joachim Michael Sterile extraction of bodily fluids by suction - has self closing valve pressed in manually to allow fluid passage to test zone
US4504266A (en) * 1979-12-14 1985-03-12 Anton Harle Variable aspiration draining instrument
US4589869A (en) * 1982-02-24 1986-05-20 Mediplast Ab Suction device and a method of manufacturing the same
US5215522A (en) * 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
US4662871A (en) * 1984-09-18 1987-05-05 Stephen Rafelson Disposable suction catheter and system for providing multiple suctioning capabilities during medical procedures or the like
US5035399A (en) * 1990-05-25 1991-07-30 C.R. Bard, Inc. Protective tubing clamp apparatus
WO1993008851A1 (en) * 1991-11-04 1993-05-13 Haemocell Plc Valve device
US5310406A (en) * 1992-05-08 1994-05-10 Sharpe Endosurgical Corporation Endoscopic aspirator surgical instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609520B1 (en) 2000-10-31 2003-08-26 Kimberly-Clark Worldwide, Inc. Closed suction catheter adaptor and assembly containing the same

Also Published As

Publication number Publication date
IT1277979B1 (en) 1997-11-12
ITMI952640A1 (en) 1997-06-14
AU1369497A (en) 1997-07-03
ITMI952640A0 (en) 1995-12-14

Similar Documents

Publication Publication Date Title
USD458284S1 (en) Linear actuator
USD477776S1 (en) Cord clamp
USD459805S1 (en) Surgical saw blade hub with tangs
USD455490S1 (en) Surgical saw blade hub
CA2308052A1 (en) Squeeze clamp for flexible tubing
USD440797S1 (en) Seat armrest
AU5567196A (en) One-piece female blade fuse with housing and improvements th ereof
USD455055S1 (en) Flow channel for drip irrigation with central cavity
WO1997021386A1 (en) Cutoff valve for aspiration lines, particulary for tracheobronchial aspiration
USD469619S1 (en) Seat
USD389580S (en) Surgical armboard
USD458339S1 (en) Fishing light
USD450550S1 (en) Flow channel for drip irrigation with biased cavity
USD449872S1 (en) Irrigation valve
USD390436S (en) Saw blade
USD439666S1 (en) Sternum saw blade
USD384529S (en) Table
USD484991S1 (en) Frame section with dual channels
USD456067S1 (en) Parabolic heater
USD393793S (en) Latch housing and turn knob assembly
USD473737S1 (en) Control mechanism for a chair
USD461240S1 (en) Tongue retention device
USD466658S1 (en) Plunger with door knob on the end of the handle
USD450533S1 (en) Tap and valve assembly
USD453619S1 (en) Shoelace

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 97521730

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase