Peritoneo-venous shunt

An ascites shunt for completely implanting in a patient comprising:

• (a) a flexible semi-rigid medically acceptable catheter for implanting in the peritoneal cavity of a patient, said catheter having an open end cut at an acute angle and a substantial portion of said catheter adjacent said open end being perforated to facilitate entry of liquid into the shunt system:
• (b) a pump body secured to and in communication with the distal end of said catheter opposite said perforated end, consisting of an enlarged, flexible, roughly tubular member of medically acceptable material;
• (c) an asymetrical, one way miter valve formed as a normally closed tubular slit valve having a flatten end at the slit with a top portion and a bottom portion for one way fluid flow through the slit and constructed and arranged so that one of the top and the bottom portions moves more than the other on closing to cause a rubbing action of the top portion on the bottom portion, mounted on the end of said perforated catheter inside said pump body permitting pumping of said pump body with no reverse flow;
• and
• (d) a second catheter secured to the outlet of said pump body, said second catheter being flexible and having its end cut off at an acute angle with a single end outlet, a plurality of absorbing markers secured in the material of the catheters and pump for ascertaining positioning of the parts by x-radiography.