EP0749762A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Valved adapter for medical access device
Assignee: Becton Dickinson and Co
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Filing: 1996-06-24
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Granted: —
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Expires: 2016-06-24
Abstract
Abstract A valved adapter for connecting a fluid handling device to a medical device includes a body with a longitudinal axis and having a female luer fitting at a proximal end, a distal end and a passageway therethrough. The passageway has a chamber intermediate the proximal end and the distal end containing a valve having a normally closed position but operative to an open position. The valve includes a relatively elongate resilient member with a proximal end and an axis substantially coaxial to the longitudinal axis of the adapter. The valve further includes a pusher disposed at the proximal end of the elongate resilient member. The pusher includes a telescopic portion having an extended position and a collapsed position. The telescopic portion is biased to the extended position.
Inventors
- 👤 Floyd V. Edwards
- 👤 Douglas P. Orr
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 12:38
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/26; A61M2039/263; A61M2039/267; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6184
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A valved adapter for connecting a fluid handling device to a medical device comprising: a body with a longitudinal axis and having a proximal end comprising a female luer fitting, a distal end and a passageway therethrough, said passageway having a chamber intermediate said distal end and said proximal end; a valve contained within said chamber in a normally closed position but being operative to an open position, said valve comprising a relatively elongate resilient member having a proximal end and an axis substantially coaxial to said longitudinal axis; and said valve further comprising a pusher disposed at said proximal end of said elongate resilient member, said pusher having a telescopic portion having an extended position and a collapsed position, said telescopic portion being biased to said extended position.
Claim 2
Dependent Claim
41 words
The adapter of claim 1 wherein said resilient member is axially compressed in said chamber thereby biasing said valve to said normally closed position, said pusher adapted to selectively displace said valve from said normally closed position to said open position.
Claim 3
Dependent Claim
68 words
The valved adapter of claim 2 wherein said female luer fitting comprises a proximal surface and a proximal opening for accepting a male luer fitting, and said pusher further comprises a proximal projection having a proximal surface so that when said telescopic portion is in said extended position, said pusher proximal surface forms a substantially continuous surface with said surface of said female luer fitting at said opening.
Claim 4
Dependent Claim
35 words
The valved adapter of claim 3 wherein said proximal opening further comprises a lip and said pusher proximal portion comprises a shoulder for contacting said lip when said telescopic portion is in said extended position.
Claim 5
Dependent Claim
55 words
The valved adapter of claim 3 wherein said pusher proximal surface is disposed so that when a fluid handling device having the male luer fitting is being mounted on said female luer fitting, the male luer fitting contacts said pusher proximal surface displacing said pusher telescopic portion from said extended position to said collapsed position.
Claim 6
Dependent Claim
26 words
The valved adapter of claim 3 wherein said pusher proximal surface further comprises a protuberance projecting proximally to facilitate fluid flow from the male luer fitting.
Claim 7
Dependent Claim
42 words
The valved adapter of claim 3 wherein said telescopic portion is biased to said extended position by a coil spring and wherein a force for overcoming said bias of said telescopic portion is less than a force for overcoming said valve bias.
Claim 8
Dependent Claim
210 words
The valved adapter of claim 7 wherein said telescopic portion comprises a proximal portion including a rod portion having said coil spring therearound and a distal portion including a receptacle portion having an opening therethrough, said rod being positioned for axial slidable movement through said opening, said slidable movement causing said displacement of said telescopic portion from said extended position and said collapsed position; wherein when the male luer fitting is being mounted on said female luer fitting the male luer fitting contacts said pusher and displaces said pusher to said collapsed position so that said spring is contained within said receptacle, further compresses said elongate resilient member and thereby allows fluid flow when said male luer fitting is fully mounted; and wherein when the male luer fitting is being dismounted from said female luer fitting the male luer fitting contacts said pusher so that said telescopic portion remains in said collapsed position and thereby allows said valve to return to said normally closed position before the male luer is fully dismounted from said female luer fitting, substantially preventing fluid discharge from said adapter as said valve returns to said normally closed position, said telescopic portion being returned to said extended position when the male luer fitting is fully dismounted
Claim 9
Dependent Claim
72 words
The valved adapter of claim 8 wherein said rod has a distal end portion including a ratchet that allows an initial distal movement of said rod into said opening during assembly of said adapter, said ratchet opposing a proximal movement of said proximal end portion of said rod through said opening, thereby providing a limit to said extended position of said telescopic portion and retaining said pusher proximal portion in said adapter.
Claim 10
Dependent Claim
129 words
The valved adapter of claim 7 wherein said pusher comprises a proximal portion including a first hollow sleeve portion having a first well therein and a distal portion including a second hollow sleeve portion having a second well therein, and said telescoping portion comprises said second hollow sleeve portion being fit within said first hollow sleeve portion for slidable axial motion between said extended position and said collapsed position, with said coil spring being contained within the wells so that said coil spring biases said telescopic portion to said extended position, said first sleeve portion and said second sleeve portion including a ratchet to retain said second portion within said first portion thereby providing a limit to said extended position and retaining said pusher proximal portion in said adapter.
References Cited (Backward Citations)
No citation records indexed.
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