The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1982
Filed:
May. 10, 1979
Applicant:
Inventor:
Isaac S Jackson, Greenwich, NY (US);
Assignee:
Mallinckrodt, Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A61M / ;
U.S. Cl.
CPC ...
1283 / ; 128276 ; 128274 ; 433 95 ;
Abstract
Suction catheters are provided with improved suction control valves that have no open ports and that are normally closed providing advantages over the conventional control valves that are normally open. The valve comprises a resilient member having a distal end of chisel point design that is slit at the tip enabling the slit to be pinched open through an enveloping sheath to apply suction to the catheter and return to a closed position upon release of pinch pressure. The catheter may include vents to release vacuum if its distal end openings become occluded.