Hydrocephalus shunt with in-line filter
First Claim
1. A shunt system for implantation in the body comprising:
- a body having an inlet and an outlet and a first fluid-flow passageway extending through the body between the inlet and outlet;
a pressure regulated valve means positioned within the first fluid-flow passageway for providing fluid flow therethrough at selected fluid pressures;
a filter positioned within the first fluid-flow passageway;
a second fluid-flow passageway extending between the inlet and outlet and providing a passageway through the body around the filter; and
means within the second fluid-flow passageway for selectively blocking or opening the second fluid-flow passageway to fluid flow.
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Accused Products
Abstract
A shunt system for implantation in the body comprises a body having an inlet and an outlet and a first fluid-flow passageway extending between the inlet and outlet. A pressure regulated valve is provided within the first fluid-flow passageway to provide fluid flow at selected fluid pressures in the passageway. A filter is positioned within the first fluid-flow passageway. A second fluid-flow passageway extends between the inlet and outlet and provides a passageway through the body around the filter. A valve and valve seat is provided within the second fluid-flow passageway which can be selectively closed or opened to provide fluid flow through the second fluid-flow passageway.
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Citations
24 Claims
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1. A shunt system for implantation in the body comprising:
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a body having an inlet and an outlet and a first fluid-flow passageway extending through the body between the inlet and outlet; a pressure regulated valve means positioned within the first fluid-flow passageway for providing fluid flow therethrough at selected fluid pressures; a filter positioned within the first fluid-flow passageway; a second fluid-flow passageway extending between the inlet and outlet and providing a passageway through the body around the filter; and means within the second fluid-flow passageway for selectively blocking or opening the second fluid-flow passageway to fluid flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A shunt system for implantation in the body comprising:
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a double-domed resilient body having an inlet and an outlet and a first fluid-flow passageway extending through the body between the inlet and outlet and a first chamber formed by the first dome and a second chamber formed by the second dome; a pressure regulated valve means positioned within the first fluid-flow passageway for providing fluid flow therethrough at selected fluid pressures; a filter positioned within the first fluid-flow passageway; a second fluid-flow passageway extending through the body between the inlet and outlet and providing a fluid-flow passageway through the first and second chambers around the filter; and means with the second fluid-flow passageway for selectively blocking or opening the second fluid-flow passageway to fluid flow. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A shunt system for implantation in the body comprising:
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a body having an inlet and outlet and at least two fluid-flow passages extending therethrough; pressure regulated valve means within each of the fluid-flow passages which provide fluid flow at selected fluid pressures in the passages; a filter positioned within the first fluid-flow passageway; and
means within the second fluid-flow passageway for selectively blocking or opening the second fluid-flow passageway to fluid flow.
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23. A shunt system for implantation in the body comprising:
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a body having an inlet and outlet and at least two fluid-flow passages extending therethrough; pressure regulated valve means within each of the fluid-flow passages which provide fluid flow at selected fluid pressures in the passages; a filter positioned within the first fluid-flow passageway; and a valve and valve seat within the second fluid-flow passageway which can be selectively opened or closed to permit or prevent fluid flow through such second fluid-flow passageway. - View Dependent Claims (24)
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Specification