Coupling system

• US 20070102923A1
• Filed: 12/09/2004
• Published: 05/10/2007
• Est. Priority Date: 12/10/2003
• Status: Abandoned Application

• Current Assignee: Maquet Critical Care AB (Getinge AB)
• Original Assignee: Maquet Critical Care AB (Getinge AB)
• Inventors: Niemela, Tapani
• Application Number:
  US10/580,380
• Publication Number:
  US 20070102923A1
• Time in Patent Office: Days
• US Class Current: 285/95
• CPC Class Codes: A61M 16/183 Filling systems
• CPC Class Codes: A61M 16/186 Locking systems
• CPC Class Codes: F16L 29/04 with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied

Abstract

A coupling system for transferring anaesthetic liquid from a bottle to a vaporizer as a bottle part that includes a first valve with a first spring-loaded valve body and a first reactive body, and a vaporizer part that includes a second valve with a second spring-loaded valve body and a second reactive body. A seal is disposed between the first valve body and the first reactive body of the bottle part, and a further seal is disposed between the second valve body and the second reactive body of the vaporizer part. 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.

Claims

1. A coupling system for transfer of an anaesthetic liquid 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 connectable to each other, with the first reactive body arranged to act on the second spring-loaded valve body in an opening direction, and the second reactive body arranged to act on the first spring-loaded valve body in an opening direction, to provide a flow-path for the anaesthetic liquid, a seal disposed between the first valve body and the first reactive body of the bottle part, and a further seal disposed between the second valve body and the second reactive body of the vaporizer part, the seal and the further seal being positioned, and the first and second reactive bodies being arranged to cause, when the bottle part and the vaporizer part are coupled together, the seal of the bottle part to abut sealingly against the second reactive body, and the further seal of the vaporizer part to abut sealingly against the first reactive body.

2. A coupling system according to claim 1, the distance between the seal and the further seal and the respective first and second reactive bodies have a distance therebetween that causes, when the bottle part and the vaporizer part are coupled together, the seal of the vaporizer part to first come into contact with the first reactive body.

3. A coupling system according to claim 1 wherein the first valve body has a recess therein.

4. A coupling system according to claim 2, wherein the second reactive body has a protruding part, having a shape conforming to the recess.

5. A method for hermetically coupling and decoupling a bottle part and a vaporizer part, wherein the bottle part comprises a first outer reactive body, a first spring-loaded valve and a first inner seal between the a first spring-loaded valve and the first outer reactive body, and wherein the vaporizer part comprises a second outer reactive body, a second valve body, and a second inner seal between the a second valve body and the second outer reactive body comprising the steps of:

coupling the bottle part and the vaporizer part hermetically together by effecting contact between the first inner seal and the second outer reactive body, and by effecting contact between the second inner seal and the first outer reactive body; and

decoupling the bottle part from the vaporizer part, in the bottle part, the first spring-loaded valve forming a hermetic seal with the first inner seal and, in the vaporizer part, the second valve body forming a hermetic seal with the second inner seal prior to separation of the parts to trap any gasses remaining in the bottle part and the vaporizer part in their respective parts so that virtually no gas escapes after the parts are separated.

6. A method according to claim 5 comprising decoupling the bottle part from the vaporizer part by pulling apart the bottle part from the vaporizer part with sufficient force to separate the parts.

7. A method according to claim 5 wherein the second reactive body has a protruding part thereon and the first reactive body has a recess conforming to said protruding part, and comprising coupling the bottle part and the vaporizer part by pushing together the bottle part and the vaporizer part and thus causing the outer protruding part to mate with the recess and open the first spring-loaded valve and the second reactive body to allow gas to freely flow between the bottle part and the vaporizer part.