US6096012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated one-piece composite plastic catheter and cannula
Assignee: Ethicon Endo Surgery Inc
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Filing: 1996-08-27
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Granted: 2000-08-01
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Expires: 2016-08-27
Abstract
Abstract A one-piece or unitarily constructed composite plastic catheter and cannula arrangement and method of producing the arrangement, having a suitably coated needle point which is thereby facilitated for insertion thereof into the vein or body of a patient, whereby the arrangement of an inexpensively produced construction renders the composite catheter and cannula structure of a nature adapted to be readily disposable after only a single use and therefore economically viable, especially for undeveloped or developing countries or regions.
Inventors
- 👤 David L. Bogert
- 👤 Zino Altman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:02
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0009; A61M25/0043; A61M25/0045; A61M2025/0046
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
A unitary one-piece catheter and cannula constructed of composite plastic material comprising an elongated generally rigid tubular member having a first end of enlarged cross-sectional dimension forming a catheter hub structure and a second end distal from said first end having a sharp-tipped portion adapted to pierce and to be inserted into the body of a patient, wherein the outer surface of at least said second end encompassing said sharp-tipped portion is coated with a layer of a material imparting increased hardness, lubricity and strength enabling said sharp-tipped portion to penetrate the skin of a patient with minimal force.
Claim 2
Dependent Claim
99 words
A unitary one-piece catheter and cannula constructed of composite plastic material comprising an elongated generally rigid tubular member having a first end of enlarged cross-sectional dimension forming a catheter hub structure and a second end distal from said first end having a sharp-tipped portion adapted to pierce and to be inserted into the body of a patient, wherein the outer surface of at least said second end encompassing said sharp-tipped portion is coated with a layer of a material imparting increased hardness, lubricity and strength enabling said sharp-tipped portion to penetrate the skin of a patient with minimal force.
Claim 3
Dependent Claim
21 words
A. A composite catheter and cannula as claimed in claim 1, wherein said coated material layer is constituted of amorphous diamond.
Claim 4
Dependent Claim
29 words
A composite catheter and cannula as claimed in claim 2, wherein said amorphous diamond forms a coating having a thickness within the range of about 0.01 to 50 nanometer.
Claim 5
Dependent Claim
22 words
A composite catheter and cannula as claimed in claim 2, wherein said amorphous diamond layer is formed through high-vacuum ion beam deposition.
Claim 6
Dependent Claim
18 words
A composite catheter and cannula as claimed in claim 1, wherein said plastic material comprises a shape-memory polyurethane.
Claim 7
Dependent Claim
18 words
A composite catheter and cannula as claimed in claim 1, wherein said plastic material comprises a hydrogel-based polyurethane.
Claim 8
Dependent Claim
21 words
A composite catheter and cannula as claimed in claim 1, wherein said plastic material comprises a composite shape-memory and hydrogel-based polyurethane.
Claim 9
Dependent Claim
33 words
A composite catheter and cannula s claimed in claim 1, wherein said plastic material is selected from the group of materials consisting of liquid crystal polymers, polyphenylene sulfide, epoxy, polyesters, polyolefins and polyamdies.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-08-01 | 2004-01-31 | 2004-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-01 | 2008-01-31 | 2008-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-01 | 2012-01-31 | 2012-08-01 | $7700.00 | Window Closed / Lapsed |