EP0447726A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Plastic pointed articles and method for their preparation
Assignee: Becton Dickinson and Co
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Filing: 1990-12-28
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Granted: —
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Expires: 2010-12-28
Abstract
Abstract An article, such as a lancet, comprises a body portion (12) and a needle portion (14) tapering to a point (16), said body and needle portions being unitary and moulded of a thermoplastic polymer selected from liquid crystalline polymers, modified acrylic polymers, impact resistant polystyrene polymers, impact resistant polycarbonates, and polyurethanes having a hard segment of about 95% or greater. Methods for producing such articles as described.
Inventors
- 👤 James M. Lambert
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:55
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/261; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/150206; A61B5/150274; A61B5/150282; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150404; A61B5/150503; A61B5/150511; A61B5/151; A61B5/15101; A61B5/15103; A61B5/15105; A61B5/15142; B29C2045/0098
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
55 words
An article comprising body portion (12) and a needle portion (14) tapering to a point (16), said body and needle portions being unitary and moulded of a thermoplastic polymer selected from liquid crystalline polymers, modified acrylic polymers, impact resistant polystyrene polymers, impact resistant polycarbonates, and polyurethanes having a hard segment of about 95% or greater.
Claim 2
Dependent Claim
11 words
A article as claimed in claim 1 which is a lancet.
Claim 3
Dependent Claim
33 words
A lancet as claimed in claim 2 comprising a grasping portion and a needle portion having a point, said grasping and needle portions being unitary and moulded of a thermoplastic, modified acrylic polymer.
Claim 4
Dependent Claim
11 words
An article as claimed in claim 1 which is a needle.
Claim 5
Dependent Claim
13 words
An article as claimed in claim 1 which is a catheter insertion device.
Claim 6
Dependent Claim
13 words
An article as claimed in claim 1 which is a needle insertion device.
Claim 7
Dependent Claim
36 words
An article comprising a needle portion having a point, said article being moulded of a thermoplastic polymer having a durometer hardness of at least 70 Shore D and an impact strength of at least 1.0 ft-lbs/in.
Claim 8
Independent Claim
112 words
A method for preparing a plastic article having a point comprising: a) heating a thermoplastic polymer selected from liquid crystalline polymers, modified acrylic polymers, impact resistant polystyrenes, impact resistant polycarbonates, and polyurethanes having a hard segment of about 90% or greater to give a melt; b) passing the melt through an orifice whereby the melt decreases in viscosity; c) directing the melt of reduced viscosity into a mould which includes a sharp point whereby the melt completely fills the mould; d) cooling the melt in the mould whereby the melt solidifies to an article having the shape of the mould including a sharp point; and e) removing the article from the mould.
Claim 9
Dependent Claim
26 words
A method as claimed in claim 8 in which the article is a lancet and the thermoplastic polymer is an impact resistant thermoplastic modified acrylic polymer.
Claim 10
Independent Claim
82 words
A method for preparing a thermoplastic plastic article having a point comprising: a) directing a melt of a thermoplastic polymer having a durometer hardness of at least 70 Shore D and an impact strength of at least 1.0 ft-lbs in. into a mould which includes a point whereby the melt completely fills the mould; b) cooling the melt in the mould whereby the melt solidifies to an article having the shape of the mould; and c) removing the article from the mould.
References Cited (Backward Citations)
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