Method of making a seal having slit formed therein
First Claim
1. A method of making a medical valve seal element having a body made of a flexible material and a slit formed within the body between adjacent first and second slit walls, the method comprising:
- molding first and second preforms, each comprising one of said first and second slit walls and a perimeter edge portion;
pressing said first and second preforms together so that said first and second slit walls face each other;
positioning an overmold plate around said first and second preforms to create a cavity around at least a portion of said first and second preforms; and
molding an additional amount of a flexible material to at least part of said perimeter edge portions of said first and second preforms so that said first and second preforms and said additional material form a unitary mass with said slit formed therein.
4 Assignments
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Accused Products
Abstract
A valve for selectively permitting a fluid flow between first and second medical implements is disclosed. The valve has a housing with an interface suitable for receiving a connector portion of a first medical device such as a catheter, and a seal made of a flexible material. The seal has a first end in fluid communication with the interface, a second end suitable for receiving the second medical device, and at least one slit in fluid communication with the first end and the second end. The slit defines a restricted fluid flow path and a relatively small interior volume when in an undisturbed state, defines an expanded fluid flow path and a larger interior volume upon the introduction of the second medical instrument into the slit, and retracts to define a restricted flow path and a small interior volume upon the withdrawal of the second medical device from the seal.
419 Citations
14 Claims
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1. A method of making a medical valve seal element having a body made of a flexible material and a slit formed within the body between adjacent first and second slit walls, the method comprising:
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molding first and second preforms, each comprising one of said first and second slit walls and a perimeter edge portion; pressing said first and second preforms together so that said first and second slit walls face each other; positioning an overmold plate around said first and second preforms to create a cavity around at least a portion of said first and second preforms; and molding an additional amount of a flexible material to at least part of said perimeter edge portions of said first and second preforms so that said first and second preforms and said additional material form a unitary mass with said slit formed therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification