초록 ▼

A displacement-activated medical check valve is provided for selectively opening and closing medicinal fluid communication. The check valve includes a flexible elastomeric member that has a proximal end and a distal end and has a sealed perforation defined at least partially through the flexible ela

A displacement-activated medical check valve is provided for selectively opening and closing medicinal fluid communication. The check valve includes a flexible elastomeric member that has a proximal end and a distal end and has a sealed perforation defined at least partially through the flexible elastomeric member. A housing receives the flexible elastomeric member so that it can be displaced along the length thereof. A contact member is provided for engaging the distal end of the elastomeric member when at least a portion of the elastomeric member is displaced against the contact member. The elastomeric member and the sealed perforation are sized and configured such that the perforation is shortened and thereby compressed open when the elastomeric member is compressed against the contact member. When a compressive force is removed the elastomeric member rebounds to close the perforation.

대표청구항 ▼

A displacement-activated medical check valve for selectively opening and closing medicinal fluid communication, the check valve comprising: a. a flexible elastomeric member having a proximal end and a distal end and further having a sealed perforation at least partially through said member; b. a hou

A displacement-activated medical check valve for selectively opening and closing medicinal fluid communication, the check valve comprising: a. a flexible elastomeric member having a proximal end and a distal end and further having a sealed perforation at least partially through said member; b. a housing defining a bore for receiving said member, said bore having a longitudinal axis, said member being sized such that at least a portion of said elastomeric member is displaceable along the longitudinal axis of said bore; c. a contact member sized and configured for engaging said distal end of said elastomeric member when at least a portion of said elastomeric member is displaced against said contact member; d. said elastomeric member and said sealed perforation being sized and configured such that said perforation is shortened and thereby compressed open when said elastomeric member is compressed against said contact member, said elastomeric member rebounding to close said perforation when said elastomeric member is free from compressive force so that fluid may flow through said perforation when said elastomeric member is compressed but fluid is prevented from flowing through said perforation when said elastomeric member is free from compressive force.