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:
Apr. 14, 1987
Filed:
Apr. 09, 1984
Henry Buchwald, Minneapolis, MN (US);
Eugenio Guzman, Falcon Heights, MN (US);
Bruce D Wigness, Minneapolis, MN (US);
Other;
Abstract
An ascites shunt is described in the form of an implantable, anti-reflux, fluid displacement, compression pump-catheter system. The system includes a double chambered multi-micro-orifice ascites collection device, an anti-reflux, anti-backdiffusion tubular compression pump, and an anti-reflux, anti-backdiffusion, non-thrombogenic catheter, all connected in series by flexible tubing. The shunt is used to transfer fluid from the peritoneum to a blood vessel to prevent accumulation of fluid within the peritoneal cavity. The pump and intravascular catheter include check valve tips of particular design to prevent both reflux and diffusion of blood components into the system.