Patent US1246485A successfully refreshed from Google Patents.
Patent EP0443735A1 successfully refreshed from Google Patents.
EP0443735A1
Expired / Lapsed
EP
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Needle guards and assemblies
Assignee: Smiths Group PLC
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Filing: 1991-01-31
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Granted: —
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Expires: 2011-01-31
Abstract
Abstract A guard (3) for a needle (1) is an extruded resilient channel, larger than the needle, with a recess (30) of circular section and an opening (31) formed by two flared wings (32, 33). The outer width of the opening (31) is at least twice the width of the recess (30) so that a needle (1) may be laterally snapped into the guard (3). The diameter of the recess (30) is less than the external diameter of the needle (1) such that the guard (3) grips the needle (1).
Inventors
- 👤 Graham George Lester
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 14:34
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3216
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A needle guard for use in conjunction with a needle, characterised in that the guard (3) is in the form of an elongate channel member of resilient material, that the channel member has a recess (30) and an elongate opening (31) to the recess (30) along the major part of the length of the guard (3), and that the opening (31) is flared radially from a width adjacent the recess (30) that is less than the diameter of the needle (1) to an outer width greater than the diameter of the needle (1), such that a needle (1) can be pushed laterally into the guard (3) through the opening and that the resilience of the guard (3) will grip the needle (1) when inserted.
Claim 2
Dependent Claim
18 words
A needle guard according to Claim 1, characterised in that the recess (30) is of substantially circular section.
Claim 3
Dependent Claim
29 words
A needle guard according to Claim 1 or 2, characterised in that the outer width of the opening (31) is at least twice the width of the recess (30).
Claim 4
Dependent Claim
35 words
A needle guard according to any one of the preceding claims, characterised in that the portion of the opening (31) flared radially forms two wings (32 and 33) inclined at 90 degrees to one another.
Claim 5
Dependent Claim
23 words
A needle guard according to any one of the preceding claims, characterised in that the guard (3) is of a resilient plastics material.
Claim 6
Dependent Claim
17 words
A needle guard according to Claim 5, characterised in that the guard (3) is a plastics extrusion.
Claim 7
Dependent Claim
44 words
A needle assembly including a needle and a needle guard according to any one of the preceding claims, characterised in that the needle guard (3) is longer than the needle (1) and that the guard (3) is mounted on and protects the needle (1).
Claim 8
Dependent Claim
35 words
A needle assembly according to Claim 7, characterised in that the needle (1) projects from a laterally extending end face (20) of a hub, and that the needle guard (3) abuts the end face (20).
References Cited (Backward Citations)
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