US5562630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for insertion of blood vessel catheters without blood loss
Assignee: Individual
•
Filing: 1995-01-18
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Granted: 1996-10-08
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Expires: 2015-01-18
Abstract
Abstract The invention is to be used in conjunction with other medical devices that are designed to be attached to catheters. The use of the placement needle through the other components prevents the spillage of blood that usually occurs when catheters are inserted into blood vessels by acting as a sturdy guide for the pliable catheter tip and shaft while passing through a seal before penetrating a blood vessel. The catheter is pushed inside the vessel while the needle is removed and discarded. After the placement needle is removed from the unit blood fills the chambers but is trapped by the seal at the end of the injection site. Also disclosed is a method of using the invention.
Inventors
- 👤 Charlotte A. Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0612; A61M25/0637; A61M25/0606
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
In combination: a catheter comprising an elongated pliable tube at one end and a seal member at the other end; a hollow catheter placement needle comprising a pointed beveled distal end and a chamber portion proximal end positioned within said catheter; said pointed beveled distal end of said hollow catheter placement needle extending beyond the end of said elongated pliable tube; and said chamber portion of said hollow catheter placement needle is adjacent said seal member of said catheter.
Claim 2
Dependent Claim
79 words
In combination: a catheter comprising an elongated pliable tube at one end and a seal member at the other end; a hollow catheter placement needle comprising a pointed beveled distal end and a chamber portion proximal end positioned within said catheter; said pointed beveled distal end of said hollow catheter placement needle extending beyond the end of said elongated pliable tube; and said chamber portion of said hollow catheter placement needle is adjacent said seal member of said catheter.
Claim 3
Dependent Claim
12 words
The invention of claim 1 wherein said catheter placement needle comprises steel.
Claim 4
Dependent Claim
18 words
The invention of claim 1 wherein said chamber portion of said hollow catheter placement needle comprises clear plastic.
Claim 5
Dependent Claim
88 words
A catheter placement needle for use with a catheter member comprising a pliable tube at one end and a seal member at the other end, said needle comprising: a hollow cylindrical body comprising a beveled point at a distal end; said hollow cylindrical body further comprising a hollow chamber portion at a proximal end; and said beveled point extending a predetermined distance beyond the end of a catheter tube tip of a catheter member while said hollow chamber portion is adjacent a seal member of the catheter member.
Claim 6
Dependent Claim
88 words
A catheter placement needle for use with a catheter member comprising a pliable tube at one end and a seal member at the other end, said needle comprising: a hollow cylindrical body comprising a beveled point at a distal end; said hollow cylindrical body further comprising a hollow chamber portion at a proximal end; and said beveled point extending a predetermined distance beyond the end of a catheter tube tip of a catheter member while said hollow chamber portion is adjacent a seal member of the catheter member.
Claim 7
Dependent Claim
13 words
The invention of claim 4 wherein said hollow chamber portion comprises clear plastic.
Claim 8
Dependent Claim
14 words
The invention of claim 4 wherein said hollow chamber portion comprises a rectangular configuration.
Claim 9
Dependent Claim
20 words
The invention of claim 4 wherein said chamber portion of said hollow catheter placement needle means is rectangular in configuration.
Claim 10
Independent Claim
91 words
A method of emplacing a catheter member comprising the steps of: a) providing a catheter member comprising a pliable tube at one end and a seal member at the other end; b) providing a catheter placement needle comprising a pointed beveled tip at a distal end and a hollow chamber portion at a proximal end; and c) inserting and extending the catheter placement needle through the seal member and beyond the tip of the pliable tube and thereafter positioning the seal member and the hollow chamber portion adjacent to each other.
Claim 11
Independent Claim
91 words
A method of emplacing a catheter member comprising the steps of: a) providing a catheter member comprising a pliable tube at one end and a seal member at the other end; b) providing a catheter placement needle comprising a pointed beveled tip at a distal end and a hollow chamber portion at a proximal end; and c) inserting and extending the catheter placement needle through the seal member and beyond the tip of the pliable tube and thereafter positioning the seal member and the hollow chamber portion adjacent to each other.
Claim 12
Dependent Claim
40 words
The method of claim 3 further comprising the steps of: a) puncturing a blood vessel with the distal end of the catheter placement needle; b) inserting the catheter member into the blood vessel; and c) withdrawing the catheter placement needle.
References Cited (Backward Citations)
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |