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US3685513A Expired / Lapsed US ⏱️ 0.0 years remaining

Indwelling catheter with breakaway needle and lanyard advancing means

Assignee: Baxter International Inc
•
Filing: 1970-05-12
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Granted: 1972-08-22
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Expires: 1990-05-12
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Abstract

Abstract A catheter emplacement set comprises a hollow needle which carries a pair of cooperating, gripping flanges in pinching relation. A flexible cover is held in position relative the needle by the gripping flanges. A flexible catheter is slidably mounted in the bore of the needle, and the distal end of the catheter carries means for attaching it to a source of parenteral administration fluid. The needle is breakable into separate pieces for removal from the catheter upon manual pulling apart of the gripping flanges. A lanyard is attached to the distal end of the catheter and passes out of the cover adjacent the needle to facilitate rapid and smooth advancement of the catheter through the needle after emplacement of the needle in a blood vessel or the like.

Inventors

  • 👤 David Bellamy Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:31
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/065

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 205 words
A catheter emplacement set which comprises a hollow needle having a pointed end for tissue piercing and an opposite end defining a pair of cooperating, gripping flanges in pinching relation, a line of weakness extending from said pointed end of said needle terminating at a crack adjacent the forward edges of said flanges, a flexible catheter slidably received by said needle and extending without said needle, means on the end of said catheter opposite said pointed needle end for attaching said catheter to a source of parenteral administration fluid once said catheter has been placed and said needle has been broken along said lines of weakness into separate pieces for removal, an elongated cover receiving said catheter and having an open end received between said flanges and secured in said crack so that said open end is disposed in position relative to said needle to permit blood flowing from said needle during tissue piercing to enter said cover, and an elongated lanyard secured by said means on the end of said catheter, said lanyard extending from without said cover open end to facilitate rapid and smooth advancement of said catheter through said needle after emplacement of said needle in a blood vessel or the like.
Claim 2
Dependent Claim 205 words
A catheter emplacement set which comprises a hollow needle having a pointed end for tissue piercing and an opposite end defining a pair of cooperating, gripping flanges in pinching relation, a line of weakness extending from said pointed end of said needle terminating at a crack adjacent the forward edges of said flanges, a flexible catheter slidably received by said needle and extending without said needle, means on the end of said catheter opposite said pointed needle end for attaching said catheter to a source of parenteral administration fluid once said catheter has been placed and said needle has been broken along said lines of weakness into separate pieces for removal, an elongated cover receiving said catheter and having an open end received between said flanges and secured in said crack so that said open end is disposed in position relative to said needle to permit blood flowing from said needle during tissue piercing to enter said cover, and an elongated lanyard secured by said means on the end of said catheter, said lanyard extending from without said cover open end to facilitate rapid and smooth advancement of said catheter through said needle after emplacement of said needle in a blood vessel or the like.

References Cited (Backward Citations)

US2355917A Cited
US2401585A Cited
US3220411A Cited
US3382872A Cited
US3515137A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-22 1976-02-21 1976-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-22 1980-02-21 1980-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-22 1984-02-21 1984-08-22 $7700.00 Window Closed / Lapsed

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