Valve for medical appliances
First Claim
1. A valve for medical appliances comprising an elastic membrane, a plurality of portions of the membrane being provided with holes which are normally closed and which can be pushed to open against elasticity of the membrane to permit a plurality of devices for transporting an appliance to be inserted into a human organ through a catheter to be passed through said holes in parallel with each other.
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Accused Products
Abstract
A valve is included as part of a medical appliance used to transport an artificial blood vessel into a body through a catheter. The valve is formed by a membrane having a plurality of holes which are normally closed and which can be pushed to open against elasticity of the membrane to permit a plurality of devices used to transport the artificial blood vessel to be passed through the holes in parallel with each other. In a preferred embodiment, a hole is provided at the center of the membrane and three other holes are equi-spaced from the center hole; equal spaces are also provided between adjacent ones of the three holes. A relatively thick embankment or projecting portion is preferably provided extending between every pair of adjacent holes, to avoid breakage of the membrane therebetween upon parallel insertion of devices through the holes.
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Citations
79 Claims
- 1. A valve for medical appliances comprising an elastic membrane, a plurality of portions of the membrane being provided with holes which are normally closed and which can be pushed to open against elasticity of the membrane to permit a plurality of devices for transporting an appliance to be inserted into a human organ through a catheter to be passed through said holes in parallel with each other.
- 65. A valve for medical appliances, comprising an elastic member, a plurality of portions of the member being provided with holes which are normally closed and which can be pushed to open against elasticity of the member to permit a plurality of devices to be passed through said holes in parallel with each other, wherein a relatively thick portion comprising an embankment having a shape of a partial arc projects from said member between each of said holes.
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74. A kit for use in transporting an appliance to be inserted into a human organ through a catheter, comprising:
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a valve comprising an elastic membrane, a plurality of portions of the membrane being provided with holes which are normally closed and which can be pushed to open against elasticity of the membrane; and
a plurality of devices insertable through said holes in parallel with each other, said devices being manipulable while passed through said holes in parallel for transporting an appliance into a human organ through a catheter. - View Dependent Claims (75, 76)
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77. An assembly for use in transporting an appliance to be inserted into a human organ through a catheter, comprising:
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a valve comprising an elastic membrane, a plurality of portions of the elastic membrane being provided with holes which are normally closed and which can be pushed to open against elasticity of the membrane; and
a plurality of devices inserted through said holes, in parallel with each other, said devices being manipulable while passed through said holes in parallel for transporting an appliance into a human organ through a catheter. - View Dependent Claims (78, 79)
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Specification