US5098403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal needle guard
Assignee: NATIONSCREDIT COMMERCIAL Corp
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Filing: 1989-12-05
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Granted: 1992-03-24
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Expires: 2009-12-05
Abstract
Abstract A needle guard attachment for a syringe. The guard has a pair of concentric members one of which establishes fluid communication between the needle and the syringe body. The other member slides to cover the needle. Once in an extended position it locks into place to act as a sheath over the needle. The guard attaches to the needle and the syringe body by luers compatible to those already on the elements.
Inventors
- 👤 Edward J. Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3243; A61M5/3271
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
106 words
An attachment for a syringe body and a needle, comprising: a pair of concentric members movable axially relative to each other, means on an inner one of said concentric members to attach one end thereof to said syringe body and means on the other end thereof to attach said inner one of said concentric members to said needle, and means on an outer one of said concentric members to lock said outer concentric member in an extended position covering a needle, wherein said outer concentric member comprises a series of tangs, slots between said tangs and a flange at one end of each of said tangs.
Claim 2
Dependent Claim
106 words
An attachment for a syringe body and a needle, comprising: a pair of concentric members movable axially relative to each other, means on an inner one of said concentric members to attach one end thereof to said syringe body and means on the other end thereof to attach said inner one of said concentric members to said needle, and means on an outer one of said concentric members to lock said outer concentric member in an extended position covering a needle, wherein said outer concentric member comprises a series of tangs, slots between said tangs and a flange at one end of each of said tangs.
Claim 3
Dependent Claim
30 words
The attachment of claim 1 further comprising a groove on the outer wall of said inner concentric member, and wherein said means to lock comprises a flange engaging said groove.
Claim 4
Dependent Claim
18 words
The attachment of claim 1 further comprising an annular ridge on the outside of said outer concentric member.
Claim 5
Dependent Claim
25 words
The attachment of claim 1 further comprising a capillary in said inner concentric member to establish fluid communication between said needle and said syringe body.
Claim 6
Dependent Claim
30 words
The attachment of claim 1 wherein said means to lock comprises a groove on said inner concentric member engaging said flanges when said outer member is in an extended position.
Claim 7
Dependent Claim
28 words
The attachment of claim 1 further comprising a slot extending axially on the outer wall of said inner concentric member and wherein a flange rides in said slot.
Claim 8
Dependent Claim
71 words
A syringe comprising: a syringe body, a needle, a connector between said syringe body and said needle, said connector comprising a first member to establish fluid communication between said needle and said syringe body and a second member slidable on said first member to cover said needle, wherein said second member comprises a series of tangs, slots between said tangs and a flange at one end of each of said tangs.
Claim 9
Dependent Claim
71 words
A syringe comprising: a syringe body, a needle, a connector between said syringe body and said needle, said connector comprising a first member to establish fluid communication between said needle and said syringe body and a second member slidable on said first member to cover said needle, wherein said second member comprises a series of tangs, slots between said tangs and a flange at one end of each of said tangs.
Claim 10
Dependent Claim
18 words
The syringe of claim 7 wherein said second member includes an annular ridge on an outside wall thereof.
Claim 11
Dependent Claim
37 words
The syringe of claim 7 wherein said first member includes an annular groove and said second member includes an inwardly extending flange engaging said groove to lock said second member in an extended position over said needle.
Claim 12
Dependent Claim
15 words
The syringe of claim 7 wherein said first and second members are concentric tubular members.
Claim 13
Dependent Claim
29 words
The syringe of claim 7 wherein said means to lock comprises a groove on said first member engaging said flanges when said second member is in an extended position.
Claim 14
Dependent Claim
23 words
The syringe of claim 7 further comprising a slot extending axially on said first member and wherein a flange rides in said slot.
References Cited (Backward Citations)
US4631057A
Cited
US4743233A
Cited
US4695274A
Cited
US4832696A
Cited
US4758231A
Cited
US4819659A
Cited
US5011479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |