EP0613656A2
Expired / Lapsed
EP
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Lancet blade designed for reduced pain
Assignee: Becton Dickinson and Co
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Filing: 1994-02-09
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Granted: —
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Expires: 2014-02-09
Abstract
Abstract A lancet assembly having a blade designed for reduced pain that is used for piercing a patient's skin to cause capillary blood to flow for collection and testing. The blade has a shear percentage greater than conventional lancet blades to provide additional cutting action when the blade is being inserted into a puncture wound and a blade width smaller than conventional lancet blades. Reduced width and increased shear percentage result in reduced skin tear and penetration force, which therefore causes less pain to the patient during skin penetration.
Inventors
- 👤 James A. Burns
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 20:35
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150374; A61B5/150381; A61B5/150442; A61B5/150458; A61B5/150015; A61B5/150022; A61B5/150412; A61B5/150427; A61B5/151; A61B5/15101; A61B5/15103; A61B5/15105; A61B5/15126; A61B5/1513; A61B5/15142; A61B5/15144
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
A lancet assembly comprising: a housing having an upper and lower end with a passageway extending from said upper end to an opening at said lower end; a blade holder having a shank slidably received in said passageway for movement from a retracted position to an extended position; and a blade mounted on said shank having a blade portion with a blade width of less than 1.1mm, said blade portion being surrounded by said passageway when said holder is in the retracted position and extending beyond said lower end of said housing when said holder is in the extended position.
Claim 2
Dependent Claim
21 words
A lancet assembly according to Claim 1, wherein said blade has a shear length and a blade length that are equal.
Claim 3
Dependent Claim
18 words
A lancet assembly according to Claim 1, wherein said blade portion has a length of at least 2.3mm.
Claim 4
Dependent Claim
20 words
A lancet assembly according to Claim 3, wherein said blade is sheared along the entire length of said blade portion.
Claim 5
Dependent Claim
18 words
A lancet assembly according to Claim 1, wherein said blade portion has an included angle less than 60°.
Claim 6
Dependent Claim
16 words
A lancet assembly according to Claim 5, wherein said blade has a shear percentage of 100%.
Claim 7
Dependent Claim
19 words
A lancet assembly according to Claim 1, wherein said blade portion has an included angle no larger than 45°.
Claim 8
Dependent Claim
16 words
A lancet assembly according to Claim 1, wherein said blade width is no larger than 1mm.
Claim 9
Dependent Claim
16 words
A lancet assembly according to Claim 1, wherein said blade width is no larger than .60mm.
Claim 10
Dependent Claim
17 words
A lancet assembly according to Claim 1, wherein said blade has a shear percentage larger than 34%.
References Cited (Backward Citations)
No citation records indexed.
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