Shawn L Simpson

US Patent:

52656217, Nov 30, 1993

Filed:

Mar 31, 1992

Appl. No.:

7/861300

Inventors:

Shawn L. Simpson - Toledo OH
Steven E. Young - Temperance MI

International Classification:

A61B 500

US Classification:

128764

Abstract:

An apparatus for taking a blood sample after a catheter has been inserted into a patient including a syringe-type apparatus provided with a control collar which cooperates with radially extending portions of the plunger to selectably fix the axial position of the plunger. Retainer means is provided to prevent total withdrawal of the plunger from the syringe body. The plunger of the syringe may be provided with a center bore to permit flow of saline solution through the syringe to the patient.

US Patent:

50020668, Mar 26, 1991

Filed:

Dec 22, 1988

Appl. No.:

7/288568

Inventors:

Shawn L. Simpson - Toledo OH
Steven E. Young - Temperance MI
David G. Musgrove - Worthington OH

Assignee:

Medex, Inc. - Hilliard OH

International Classification:

A61B 500

US Classification:

128760

Abstract:

In blood pressure monitoring apparatus, apparatus for withdrawing blood from a tube connected to a patient's blood vessel. A stopcock is connected to the tube. A T-connector is connected to one port of the stopcock. A storage syringe is connected to one branch of the T-connector and a latex self-sealing cap covers the other port to provide an IV site suitable for penetration with a syringe needle to withdraw a blood sample through the IV site. The storage syringe brings blood to the T-connector so that it can be withdrawn through the IV site.