Syringe tip cap

Patent metadata

Field	Value
Publication number	US-9415168-B2
Application number	US-69138503-A
Country	US
Kind code	B2
Filing date	Oct 22, 2003
Priority date	Apr 22, 2003
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

A tip cap is provided comprising a base portion having an upper surface and a lower surface, a body having a top wall with a non-circular cross-section extending from the upper surface, and a shaft extending from the lower surface. A syringe assembly is provided comprising a syringe comprising a barrel, and a syringe tip, extending through the barrel and a connector provided on the syringe tip. The syringe assembly further comprises a tip cap for sealingly covering the syringe tip and comprising a base portion having an upper surface and a lower surface, a body having a top wall with a non-circular cross-section extending from the upper surface, and a shaft extending from the lower surface having connection means for attaching to the syringe tip.

First claim

What is claimed is:

1. A syringe assembly comprising:
a syringe having a barrel with an open proximal end and an opposed distal end with a cylindrical wall extending therebetween, and a luer tip formed at said distal end; and
a unitary thermoplastic tip cap securable to said luer tip and comprising:
a base portion having an upper surface and a lower surface, a body having a top wall extending from said upper surface and self-maintained in having a substantially non-circular cross-section in an unstressed condition when viewed at an angle substantially perpendicular to said upper surface, and a shaft extending from said lower surface, said shaft being shaped internally to releasably receive and contact the luer tip of the syringe and shaped externally to cooperate with a connector on the syringe, wherein said tip cap defines a continuous and uninterrupted sealing surface which continuously seals the luer tip of the syringe and contains the medicament within the syringe when said luer tip is releasably received in said shaft of said tip cap and until said tip cap is removed from said syringe, the medicament within the syringe being accessible through the luer tip of the syringe with removal of said tip cap, wherein said top wall has a non-circular elliptical shape.

2. The syringe assembly of claim 1 , wherein said non-circular cross- section is oval.

3. The syringe assembly of claim 1 , wherein said top wall is at least partially perimetrically disposed on said upper surface.

4. The syringe assembly of claim 1 , wherein an exterior of said top wall further includes a textured surface.

5. The syringe assembly of claim 4 , wherein said textured surface includes a plurality of ribs.

6. The syringe assembly of claim 4 , wherein said textured surface includes a plurality of dimples.

7. The syringe assembly of claim 4 , wherein said textured surface includes a plurality of radially extended flanges.

8. The syringe assembly of claim 1 , wherein said top wall is disposed along major and minor axes, said top wall having faces disposed along “said major axis, said faces each having an arcuate profile along said major axis”.

9. The syringe assembly of claim 1 , wherein said top wall is disposed along major and minor axes, said top wall having faces disposed along said major axis, said faces each having an arcuate profile along said major axis.

10. The syringe assembly of claim 9 , wherein said tip cap includes threads for threadedly engaging a luer locking collar.

11. The syringe assembly of claim 1 , wherein the body of the tip cap has a major axis and a minor axis and wherein the major axis is greater than the minor axis.

12. The syringe assembly of claim 11 , wherein the top wall of the body is coextensive with the base portion of the tip cap along the major axis of the body and wherein portions of the base portion extend radially outwardly with respect to the top wall along the minor axis of the body.

13. The syringe assembly of claim 1 , wherein the luer tip is unitarily formed with a syringe body, and wherein the unitary thermomplastic tip cap is directly securable to said luer tip.

Assignees

• Hwang Charles G
• Groskopf Roger
• Becton Dickinson Co

Inventors

• Hwang Charles G
• Groskopf Roger

Classifications

• A61M2205/586

  Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users · CPC title

• A61M5/3134 Primary

  characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula · CPC title

• A61M2005/3104

  Caps for syringes without needle · CPC title