Medical device with high pressure quick disconnect handpiece
First Claim
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1. A high-pressure fluid connection in a surgical instrument or system, the connection comprising:
- a chamber containing a high pressure fluid from a fluid source, the chamber having an inner surface;
a tube communicating with the chamber for conducting the fluid to the surgical instrument or system, the tube having an outer surface and a central axis; and
a gasket surrounding the tube and coupling the tube to the chamber to provide a seal between the inner surface of the chamber and the outer surface of the tube, the gasket comprising;
a central channel for receiving the tube; and
an annular channel surrounding the central channel, the annular channel being formed by inner and outer side walls that are disposed at an acute angle with respect to the central axis of the tube and wherein the inner and outer side walls extend away from one another from a closed end to an open end.
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Abstract
A method and apparatus are provided for quickly connecting a handpiece to a pressurized fluid source. A hollow tube on the handpiece is inserted through an aperture in an annular gasket which is held in a chamber in a body. On application of pressurized fluid to the body, the gasket is pressed against the walls of the chamber, and against the tube, thereby channeling the pressurized fluid through the hollow tube. The handpiece is retained in connection with the body by a releasable connector, such as a latch. The handpiece can be removed and replaced by releasing and remaking the connection.
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Citations
23 Claims
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1. A high-pressure fluid connection in a surgical instrument or system, the connection comprising:
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a chamber containing a high pressure fluid from a fluid source, the chamber having an inner surface;
a tube communicating with the chamber for conducting the fluid to the surgical instrument or system, the tube having an outer surface and a central axis; and
a gasket surrounding the tube and coupling the tube to the chamber to provide a seal between the inner surface of the chamber and the outer surface of the tube, the gasket comprising;
a central channel for receiving the tube; and
an annular channel surrounding the central channel, the annular channel being formed by inner and outer side walls that are disposed at an acute angle with respect to the central axis of the tube and wherein the inner and outer side walls extend away from one another from a closed end to an open end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification