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US 4,037,604 AGranted
Artifical biological drainage device
OwnerJohn B. Newkirkinventor
Life of this patent
Estimating the term…
Abstract
A tube for implantation in an animal organ or cavity, for example, an eye, communicates with the anterior chamber of the eye and terminates in a unilateral pressure dependent valve shunt positioned outside the anterior chamber. Lateral side arms secured to the tube provide fixation means to the eye.
Claims10
An artificial biological drainage device such as an eye shunt, comprising:
- a. a plastic, body innocuous tubular body being sufficiently rigid to maintain its shape on being implanted in a human body and having two open ends;
- b. a soft, flexible tube contacting and peripherally secured to and telescoped over one end of said tubular body and having a soft, resilient closure forming a closed end for said tubular body, there being at least one slit in said closed end arranged to open outwardly providing a unidirectional valve for fluid above a predetermined pressure and arranged to close at a pressure slightly less than the opening pressure for maintaining fluid pressure in an eye at a generally predetermined level;
- and
- c. a crossarm secured to said tubular body for securing the same in an implanted position all said parts being innocuous to the tissues and fluids in a body and being of a size to be accommodated in implant in a small organ.
1 more element
Dependencies are inferred from the claim text.