Flash tube for intravenous catheter

Patent 5120319 Issued on June 9, 1992. Estimated Expiration Date:

June 26, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Catheter insertion apparatus
Patent #: 4108175
Issued on: 08/22/1978
Inventor: Orton

Flashback structure
Patent #: 4710173
Issued on: 12/01/1987
Inventor: McFarlane

Safety catheter
Patent #: 4828548
Issued on: 05/09/1989
Inventor: Walter

Flashback chamber for catheter assembly
Patent #: 4908021
Issued on: 03/13/1990
Inventor: McFarlane

Catheter inserter
Patent #: 4917669
Issued on: 04/17/1990
Inventor: Bonaldo

Catheter insertion assembly
Patent #: 4961729
Issued on: 10/09/1990
Inventor: Vaillancourt

Catheter with needle guard
Patent #: 5000740
Issued on: 03/19/1991
Inventor: Ducharme, et al.

Flashback plug Patent #: 5032116
Issued on: 07/16/1991
Inventor: Peterson, et al.

Inventors

Assignee

Critikon, Inc.

Application

No. 721809 filed on 06/26/1991

US Classes:

604/168.01, Having telltale for showing entry of blood into conduit604/900TELLTALE SHOWING ENTRY OF BLOOD INTO BODY INSERTED CONDUIT

Examiners

Primary: O'Connor, Cary E.

Attorney, Agent or Firm

Coletti; Paul a.

International Class

A61M 005/178

Abstract

A catheter device is disclosed which contains a catheter in an insertion needle. The insertion needle is attached to a needle hub which contains a flash chamber. Within the flash chamber the proximal end of the needle is connected to a clear plastic tube so that flash is initially determined in this tube; overflow flash is then caused to flow into the larger flash chamber from the flash tube.