U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Medical connector

Patent 5215529 Issued on June 1, 1993. Estimated Expiration Date: Icon_subject November 1, 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.

Patent References

3851647

Single and multiple sample needle assembly with vein entry indicator
Patent #: 4398544
Issued on: 08/16/1983
Inventor: Nugent ,   et al.

Catheter introduction set
Patent #: 4417886
Issued on: 11/29/1983
Inventor: Frankhouser ,   et al.

Sterile connection device
Patent #: 4511359
Issued on: 04/16/1985
Inventor: Vaillancourt

Hub assemblies and extensions for indwelling catheter tubes and method
Patent #: 4547194
Issued on: 10/15/1985
Inventor: Moorehead

Medical connector
Patent #: 4752292
Issued on: 06/21/1988
Inventor: Lopez ,   et al.

Medical connector Patent #: 5098395
Issued on: 03/24/1992
Inventor: Fields

Inventors

Application

No. 786567 filed on 11/01/1991

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: Yasko, John D.

Attorney, Agent or Firm

International Class

A61M 005/178

Abstract

A medical connector (10) disclosed comprises a first connector member (10) having an elongated hollow introducer needle (14). The introducer needle (14) has first and second end portions (16,18) and first and second spaced openings (20,22) to the hollow of needle (14) between the end portions (16,18). A second connector member (28) is connectable with the first connector member (12). The second connector member (28) includes a flashback chamber (30) having a rubber septum (32) and also a catheter tip (34) mounted thereon. The introducer needle (14) is axially movable through the rubber septum (32), flashback chamber (30), and catheter tip (34) to establish an opening in a patient's vein for placement of the catheter (34). The movement of the introducer needle (14) positions the first and second openings (20,22) within the flashback chamber (3) when the opening in the patient's vein is established whereby to provide venting of the needle (14 ) and flashback chamber (30) as the patient's blood is communicated through the first end portion (16) and into the flash-back chamber (30) providing visual confirmation of a successful stick by the presence of blood within the flashback chamber (30) while the air is displaced from the flashback chamber (30) through the second portion (18) and the hydrophobic vent filter in hub (36). A vent filter in hub (36) prevents blood spillage into the first connector member (10).

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