Medical device with elastomeric penetrable wall
View Patent ↗A medical device such as a female luer lock connector has an interior for containment of fluids. An access site on the medical device has an opening into the access site interior, which opening defines an annular, outer end surface surrounding the opening. An elastomeric wall is sealingly bonded to the annular, outer end surface at an inner face of the elastomeric wall. Typically, the elastomeric wall has a radially outwardly facing peripheral surface which is essentially spaced from the access site. Also, portions of the elastomeric wall, if desired, can project laterally outwardly beyond the annular, outer end surface, to frictionally engage a second medical device that is attached to the access site.
1. A medical device having an interior for containment of fluids;
an access site having an opening into the access site interior, said access site defining an annular, outer end surface surrounding said opening, and an elastomeric wall sealingly bonded to said annular, outer end surface at an inner face of said elastomeric wall, said elastomeric wall having a radially outwardly facing peripheral surface which is essentially spaced from said access site, said elastomeric wall comprising a disk which is free of longitudinally inwardly extending projections used to secure said elastomeric wall to the medical device.
2. The device of claim 1 in which said elastomeric wall has a central perforation;
said elastomeric wall having a central, concave surface on one side thereof, and a central, convex surface on the opposed side of said elastomeric wall, to enhance pressure resistance.
3. The device of claim 2 in which said central, convex surface faces inwardly of said opening.
4. The device of claim 1 in which said access site defines a tube having outer connecting threads or lugs, said tube having an outer end which defines said opening and annular, outer end surface, the annular, outer end surface being transversely smaller in at least some directions than said elastomeric wall, so that at least some of said elastomeric wall projects laterally outwardly beyond the outer end surface, to frictionally engage a second, medical device that is attached to the access site by engaging said threads or lugs.
5. The device of claim 1 in which said medical device also defines a passageway extending inwardly from said elastomeric wall, said passageway being proportioned to receive and form an annular seal with a connector tube that is extended into said interior through said perforation.
6. The device of claim 1 in which said elastomeric wall defines a central perforation.
7. The device of claim 6 in which said device defines a bore portion positioned between said elastomeric wall and the passageway, said bore portion having an inner diameter larger than any inner diameter of said passageway, to provide a chamber that receives material of said elastomeric wall when a connector tube is extending through said perforation.
8. The device of claim 6 in which a connector tube penetrates said perforation and forms an annular seal with a wall of said passageway.
9. The device and connector tube of claim 8 in which the connector tube comprises a male luer of an ISO standard male luer lock connector.
10. The device and connector tube of claim 9 in which said device defines outer threads or lugs which are in connection with an outer locking sleeve of said ISO standard male luer lock connector.
11. The device of claim 1 which is in connection with the length of flexible tubing.
12. The device of claim 1 in which said access site comprises a female luer lock connector.
13. The device of claim 1 in which the outer face of said elastomeric wall is laterally exposed to the exterior, to permit lateral swabbing for aseptic cleaning prior to use.
14. A medical device having an interior for containment of fluids;
an access site having an opening into the access site interior, defining an annular, outer end surface surrounding said opening, and an elastomeric wall which comprises a disk, free of longitudinally inwardly extending projections used to secure said elastomeric wall to the medical device, said elastomeric wall being sealingly bonded to said annular, outer end surface at as an inner face of said elastomeric wall, said access site defining a tube having outer connecting threads or lugs, said tube having an outer end which defines said opening and annular, outer end surface, the annular, outer end surface being transversely smaller in at least some directions than said elastomeric wall, with at least some of said elastomeric wall projecting laterally outwardly beyond the annular, outer end surface, to frictionally engage a second medical device that is attached to the access site by engaging said threads or lugs.
15. The device of claim 14 in which said elastomeric wall has a central perforation, a central, concave surface on one side of said elastomeric wall and a central, convex surface on the opposed side of said elastomeric wall, to enhance pressure resistance.
16. The device of claim 14 in which said medical device also defines a passageway extending inwardly from adjacent to said elastomeric wall, said passageway being proportioned to receive and form an annular seal with a connector tube that is extended into said interior through said perforation.
17. The device of claim 14 in which said device defines a bore portion positioned between said elastomeric wall and the passageway, said bore portion having an inner diameter larger than any inner diameter of said passageway, to provide the chamber that receives material of said elastomeric wall when a connector tube is extending through said perforation.
18. The device of claim 14 in which said access site comprises a female luer lock connector.
19. A medical device having an interior for containment of fluids; an opening into the interior, and an elastomeric wall having at least one perforation, said wall comprising a disk being essentially free of longitudinally inwardly extending projections which are used to retain said elastomeric wall in place on said medical device, said elastomeric wall comprising a fixedly placed, flexible barrier across said opening; said device also defining a passageway extending inwardly from said elastomeric wall, said elastomeric wall being laterally secured at a periphery thereof to normally compress said perforation to improve sealing thereof.
20. The device of claim 19 in which said elastomeric wall has a central, concave surface on one side thereof, and a central convex surface on the opposed side of said elastomeric wall, to enhance pressure resistance.
21. The device of claim 20 in which said central, convex surface faces inwardly of said opening.
22. The device of claim 19 in which said device defines a bore portion positioned between said elastomeric wall and the passageway, said bore portion having an inner diameter larger than any inner diameter of said passageway, to provide a chamber that receives material of said elastomeric wall when a connector tube is extending through said perforation.
23. The device of claim 19 in which the connector tube comprises a male luer of an ISO standard male luer lock connector.