Source: https://patents.google.com/patent/WO2005056093A1/en
Timestamp: 2018-11-18 15:49:38
Document Index: 581586612

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 1', 'art 1', 'art 2', 'art 2', 'arts 1', 'art 1', 'art 2', 'art 2', 'art 1', 'art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2', 'art 2', 'art 2', 'art 1', 'art 1', 'art 1', 'art 2', 'art 1', 'art 2', 'art 2', 'art 1', 'art 2', 'art 1', 'art 1', 'art 2', 'art 20', 'art 2', 'art 20', 'art 1', 'art 1', 'art 2', 'art 1', 'art 2', 'arts 1', 'art 1', 'art 2', 'art 23']

WO2005056093A1 - A coupling system - Google Patents
A coupling system Download PDF
WO2005056093A1
WO2005056093A1 PCT/SE2004/001831 SE2004001831W WO2005056093A1 WO 2005056093 A1 WO2005056093 A1 WO 2005056093A1 SE 2004001831 W SE2004001831 W SE 2004001831W WO 2005056093 A1 WO2005056093 A1 WO 2005056093A1
PCT/SE2004/001831
A coupling system for transfer of an anaesthetic liquid from a bottle (3) to a vaporizer (4), comprising a bottle part (1) comprising a first valve (5, 6) with a first spring-loaded valve body (5) and a first reactive body (6), and a vaporizer part (2) comprising a second valve (10, 11) with a second spring-loaded valve body (10) and a second reactive body (11), whereby a seal (7) is arranged between the first valve body (5) and the first reactive body (6) of the bottle part (1), and a further seal (12) is arranged between the second valve body (10) and the second reactive body (11) of the vaporizer part (2), is described. The function is improved by the seals (7, 12) being positioned and the reactive bodies (6, 11) being arranged so that, when the bottle part (1) and the vaporizer part (2) are coupled together, the seal (7) of the bottle part (1) abuts sealingly against the second reactive body (11), and the seal (12) of the vaporizer part (2) abuts sealingly against the first reactive body (6).
A COUPLING SYSTEM
The present invention relates to a coupling system for transfer of an anaesthetic fluid from a bottle to a vaporizer, comprising a bottle part comprising a first valve with a first spring-loaded valve body and a first reactive body, and a vaporizer part comprising a second valve with a second spring-loaded valve body and a second reactive body, the bottle part and the vaporizer part being adapted to be coupled to- gether, whereby the first reactive body is arranged so as to act on the second spring- loaded valve body in an opening direction, and the second reactive body is arranged so as to act on the first spring-loaded valve body in an opening direction so as to form a flow-path for the anaesthetic fluid, whereby a seal is arranged between the first valve body and the first reactive body of the bottle part, and a further seal is ar- ranged between the second valve body and the second reactive body of the vaporizer part.
During inhalation anaesthesia, a mixture comprising anaesthesia is given to a patient via the respiratory passages. The anaesthesia is usually provided in liquid form in a vaporizer, and a certain amount of fluid is vaporized in accordance with the needs for supply to the patient. The vaporizer comprises a limited amount of liquid, and refilling of the liquid may be necessary during a progressive narcosis.
When filling liquid to the vaporizer it is important to make sure that the anaesthesia does not reach the surroundings and is vaporized. Above all, there are two reasons for this. A short-term effect is that the nursing staff is negatively affected during surgery by anaesthetic gas. A long-term effect is that staff exposed during extended periods of time to anaesthetic gases can develop cancer. A common disadvantage of known coupling systems is that liquid remains in the coupling when the parts are pulled apart after being coupled together, thereby allowing the liquid to evaporate into the surroundings.
In conjunction with a coupling system of the type initially mentioned, and which is described in EP 1 304 132 Al, attempts have been made to solve said problem by arranging the two parts of the coupling system so that the spring-loaded valve body and the reactive body in the respective part substantially form a plane surface. Due to the plane surfaces of the parts, there is in principle no volume between the parts that could be filled with liquid. However, liquid seeping in between the surfaces and forming a liquid film cannot be completely avoided. Since the plane surfaces of the coupling system are relatively large, a considerate amount of fluid can vaporize into the surroundings when the parts are pulled apart.
The object of the invention is to present a coupling system of the type initially mentioned, whereby it is secured that no or a negligible spill of liquid will occur when the bottle is removed from the vaporizer.
This problem is solved in that the seals are positioned and the reactive bodies are arranged so that, when the bottle part and the vaporizer part are coupled together, the seal of the bottle part abuts sealingly against the second reactive body, and the seal of the vaporizer part abuts sealingly against the first reactive body. The posi- tioning of the seals makes it impossible for fluid to leak during filling and form a film between the parts. After separation of the parts, only a negligible part of the coupling, which during filling was in contact with the fluid, will now come in contact with the surrounding air. In an advantageous further development of the coupling system according to the invention, it is suggested that the distance between the respective seal and reactive body is such that, upon coupling together of the bottle part and the vaporizer part, the seal of the vaporizer part firstly comes into contact with the first reactive body. Thereby, a tight connection is secured between the vaporizer part and the bottle part before the valve body of the bottle part and the reactive body of the vaporizer part are displaced to a position in which the flow-path for the anaesthetic fluid is open.
According to a preferred embodiment of the coupling system according to the inven- tion it is suggested that the first valve body has a recess. A recess makes it more difficult to open the valve body of the bottle part by mistake.
According to a further preferred embodiment of the coupling system according to the invention it is suggested that the second reactive body has a protruding part, the shape of which corresponds to the recess. Thereby, it is difficult to open the spring- loaded valve body of the vaporizer part by mistake.
The invention will be described in conjunction with the figures of the enclosed drawings, where:
Fig. 1 shows a coupling system according to the invention comprising a side elevation of a bottle part and a vaporizer part in a longitudinal cross- section and in a separated position, Fig. 2 shows a coupling system according to Fig. 1 in a partially coupled but still closed position, Fig. 3 shows a coupling system according to Figs. 1 and 2, in a position in which the inlet of the vaporizer part is partly open but the outlet of the bottle part is closed, and Fig. 4 shows a coupling system according to Figs. 1-3 in an open position. Detailed Description of the Invention
In Fig. 1, there is shown a coupling system comprising a side elevation of a bottle part 1 and a vaporizer part 2 in a longitudinal cross-section, which parts are shown right in front of each other. The bottle part 1 is fitted to or is a part of a bottle 3, and the vaporizer part is mounted in a vaporizer 4 of a narcosis apparatus.
The bottle part 1 comprises a first valve consisting of a spring-loaded valve body 5 and a reactive body 6. The reactive body 6 consists of the free end side of the bottle part 1. Between the valve body 5 and the reactive body 6 a seal 7 is provided in the form of an O-ring seal which is fastened to the valve body 5. The spring 8 for the valve body 5, pushing the seal 7 against the inner side of the reactive body 6, is, as shown in the Figure, tightened between a lock ring 9 and the side of the valve body 5 that is directed towards the lock ring 9. The valve body 5 is also provided with channels 15.
The vaporizer part 2 comprises a second valve with a spring-loaded valve body 10 and a reactive body 11, which bodies 10, 11 are placed in a housing 14. Between the valve body 10 and the reactive body 11 a seal 12 is provided in the form of a O-ring seal, which is fastened to the valve body 10. The spring 13 for the valve body 10, which pushes the seal 12 against the lower side of the reactive body 11, is tightened between the inner side of the housing 14 of the vaporizer part 2 and the side of the valve body 10 that is facing said inner side. The reactive body 11 forms a part of a shaft 16, which is fixed to the bottom 17 of the housing 14. The bottom 17 is provided with channels 18.
Fig. 2 shows that, upon coupling together of the parts 1 and 2, i.e. when the bottle part 1 is brought into the vaporizer part 2, the seal 12 of the vaporizer part 2 will at first come into contact with the reactive body 6 of the bottle part 1 and form a seal between the bottle part 1 and the vaporizer part 2 before any of the valves 5, 6, and 10, 11, respectively, of the parts have been opened.
Fig. 3 shows that, upon a further displacement of the bottle part 1 downwards in the vaporizer part 2, the reactive body 6 of the bottle part 1 is pressed towards the seal
12 so that the valve body 10 of the vaporizer part 2 is pressed downwards, whereby the seal 12 leaves the lower side of the reactive body 11 of the vaporizer part 2, whereby the inlet to the vaporizer part 2 and thereby to the vaporizer 4 is opened. The seal 7 of the bottle part 1 still abuts against the inner side of the reactive body 6 of the bottle part 1.
When the bottle part 1 is further pushed downwards towards the vaporizer part 2, the reactive body 6 of the bottle part 1 pushes the seal 12 and thereby the valve body 10 of the vaporizer part 2 downwards, whereby the inlet to the vaporizer part 2 and thereby to the vaporizer 4 is completely opened. At the same time the valve body 5 of the bottle part 1 is pushed upwards by means of the reactive body 11 of the vaporizer part 2 so that the seal 7 lifts from the inner side of the reactive body 6 of the bottle part 1, whereby a flow-path for the anaesthetic fluid through the coupling.sys- tem is formed, which is shown in Fig. 4. Now fluid can flow from the bottle 3 through the channels 15 in the valve body 5 and through the opening formed around the valve body 5 of the bottle part 1 and the reactive body 11 of the vaporizer part 2, which opening is indicated by arrows 19, and further into the vaporizer 4 (Fig. 1) through the channels 18.
Fig. 4 shows the parts of the coupling system that, upon filling of anaesthetic fluid, will come into contact with the fluid and that, after a separation of the bottle part and the vaporizer part, will come into contact with the surroundings. These parts are, on the one hand, the surface of the peripheral part 20 of the reactive body 11 of the vaporizer part 2 and, on the other hand, the surface of the inner ring of the reac- tive body 6 of the bottle part, which in the Figure is indicated by the reference nu- meral 21. The peripheral part 20 and the inner ring 21 are also indicated in Fig. 1. The fluid that possibly can stick to these small surfaces is negligible.
When the bottle part 1, after completed filling of anaesthetic fluid to the vaporizer 4, is pulled upwards out of the vaporizer part, a closing of the valves 5, 6 and 10, 11 with their seals 7, 12 takes place so that the bottle part 1 as well as the vaporizer part 2 are sealed before the bottle part 1 and the vaporizer part 2 have been pulled apart. The closing of the parts 1 and 2 takes place in an inverted order as compared to what has been described above in connection with Figs. 1- 4.
In the Figures is shown that the valve body 5 of the bottle part 1, as described above, can have a recess 22. Also the reactive body 11 of the vaporizer part 2 can have a protruding part 23, the shape of which corresponds to fit into recess 22. The advantages of this are presented above in the introduction of the description. The coupling system according to the invention works in the same advantageous way as described, even if said valve body 5 and said reactive body 11 are replaced by a planar arrangement.
1. A coupling system for transfer of an anaesthetic liquid from a bottle (3) to a vaporizer (4), comprising a bottle part (1) comprising a first valve (5, 6) with a first spring-loaded valve body (5) and a first reactive body (6), and a vaporizer part (2) comprising a second valve (10, 11) with a second spring-loaded valve body (10) and a second reactive body (11), the bottle part (1) and the vaporizer part (2) being connectable to each other, whereby the first reactive body (6) is arranged to act on the second spring-loaded valve body (10) in an opening direc- tion, and the second reactive body (11) is arranged to act on the first spring- loaded valve body (5) in an opening direction, to provide a flow-path for the. anaesthetic liquid, where-by a seal (7) is arranged between the first valve body (5) and the first reactive body (6) of the bottle part (1), and a further seal (12) is arranged between the second valve body (10) and the second reactive body (11) of the vaporizer part (2), characterized in that the seals (7, 12) are positioned and the reactive bodies (6, 11) are arranged so that, when the bottle part (1) and the vaporizer part (2) are coupled together, the seal (7) of the bottle part (1) abuts sealingly against the second reactive body (11), and the seal (12) of the vaporizer part (2) abuts sealingly against the first reactive body (6).
2. A coupling system according to Claim 1, characterized in that the distance between the seals (7, 12) and the respective reactive bodies (6, 11) is such that when the bottle part (1) and the vaporizer part (2) are coupled together, the seal (12) of the vaporizer part (2) at first comes into contact with the first reactive body (6).
3. A coupling system according to Claim 1 or 2, characterized in that the first valve body (5) has a recess (22).
4. A coupling system according to any of Claims 1-3, characterized in that the second reactive body (11) has a protruding part (23), the shape of which corresponds to the recess (22).
5. A method of hermetically coupling and decoupling a bottle part (1) and a vaporizer part (2), wherein the bottle part (1) comprises a first outer reactive body (6), a first spring-loaded valve (5) and a first inner seal (7) arranged between the a first spring-loaded valve (5) and the first outer reactive body (6), and wherein the vaporizer part (2) comprises a second outer reactive body (11), a second valve body (10), and a second inner seal (12) arranged between the a second valve body (10) and the second outer reactive body (11), characterized in that the method comprising the steps of: coupling the bottle part (1) and the vaporizer part (2) hermetically together by effecting contact between the first inner seal (7) and second outer re- active body (11), and by effecting contact between the second inner seal (12) and the first outer reactive body (6); and decoupling the bottle part (1) from the vaporizer part (2) such that, in the bottle part (1), the first spring-loaded valve (5) forms a hermetic seal with the first inner seal (7) and, in the vaporizer part (2), the second valve body (10) forms a hermetic seal with the second inner seal (12) prior to separation of the parts such that any gasses remaining in the bottle part (1) and the vaporizer part (2) are trapped in their respective parts so that virtually no gas is able to escape after the parts are separated.
6. The method according to claim 5 wherein the decoupling occurs by pulling apart the bottle part (1) from the vaporizer part (2) with sufficient force to separate the parts.
7. The method according to claim 5 wherein coupling occurs by pushing together the bottle part (1) and the vaporizer part (2) such that the outer surface of the second reactive body (11) being shaped into a form of a protruding part (23), and the outer surface of the first spring-loaded valve (5) being shaped into a corresponding recess (22) are mated in a manner that opens the first spring-loaded valve (5) and the second reactive body (11) so that gas can freely flow between the bottle and vaporizer parts.
PCT/SE2004/001831 2003-12-10 2004-12-09 A coupling system WO2005056093A1 (en)
SE0303359A SE0303359D0 (en) 2003-12-10 2003-12-10 Switching System
SE0303359-4 2003-12-10
JP2006543774A JP2007513683A (en) 2003-12-10 2004-12-09 Consolidated system
EP20040801733 EP1694394A1 (en) 2003-12-10 2004-12-09 A coupling system
US10580380 US20070102923A1 (en) 2003-12-10 2004-12-09 Coupling system
WO2005056093A1 true true WO2005056093A1 (en) 2005-06-23
ID=30439685
PCT/SE2004/001831 WO2005056093A1 (en) 2003-12-10 2004-12-09 A coupling system
US (1) US20070102923A1 (en)
EP (1) EP1694394A1 (en)
JP (1) JP2007513683A (en)
WO (1) WO2005056093A1 (en)
WO2007101109A1 (en) 2006-02-27 2007-09-07 Baxter International Inc. Adapter for an anesthetic vaporizer
CN105508775A (en) * 2016-01-11 2016-04-20 东方电气集团东方电机有限公司 Oil duct communication device
JP6019364B2 (en) * 2013-10-29 2016-11-02 兵神装備株式会社 Replenishing method of dispensing system, and fluid
CN106481786A (en) * 2015-08-27 2017-03-08 上海汽车集团股份有限公司 Dual-clutch transmission and sealing device thereof
WO1998023891A1 (en) * 1996-11-29 1998-06-04 Valeo Improved tight rapid action pipe coupling
EP1304132A1 (en) * 2001-10-18 2003-04-23 Siemens Elema AB Coupling system
US2453389A (en) * 1945-05-14 1948-11-09 Sterling Ind Ltd Self-sealing pipe coupling
EP1694394A1 (en) 2006-08-30 application
JP2007513683A (en) 2007-05-31 application
US20070102923A1 (en) 2007-05-10 application
2006-05-22 ENP Entry into the national phase in:
Ref document number: 2007102923
Ref document number: 10580380
Ref document number: 2006543774
Ref document number: 2004801733