Compression pump-catheter

Details Compression pump-catheter Compression pump-catheter

1984-04-09

1987-04-14

Rosenbaum, C. Fred

Surgery

Devices transferring fluids from within one area of body to...

With flow control means

604247, A61M 500

Patent

active

046575308

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.

REFERENCES:
patent: 3109429 (1963-11-01), Schwartz
patent: 3233610 (1966-02-01), Wade
patent: 3492996 (1970-02-01), Fountain
patent: 3566875 (1971-03-01), Stoehr
patent: 3683929 (1972-08-01), Holter
patent: 3910283 (1975-10-01), Leveen
patent: 4182343 (1980-01-01), Inaba
patent: 4240434 (1980-12-01), Newkirk
patent: 4261341 (1981-04-01), Hakim et al.
patent: 4346704 (1982-08-01), Kulle

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