Surgical cassette
First Claim
1. A cassette for use in combination with a surgical handpiece and a control console for controlling irrigation and aspiration fluid flows in the handpiece, comprising:
- a) a housing having an external surface and an interface wall adapted to be held in operative association with the control console;
b) a means for generating a partial vacuum through interaction with a motive force in the control console having an inlet and a discharge line connected to a waste container;
c) an aspiration fluid inlet coupling integrally formed in the housing;
d) an irrigation fluid inlet coupling integrally formed in the housing;
e) an irrigation fluid outlet coupling integrally formed in the housing;
f) an aspiration fluid flow passage integrally formed in the housing in fluid communication with the aspiration fluid inlet coupling and the partial vacuum generating means inlet;
g) an irrigation fluid capacitance chamber integrally formed in the housing;
h) an irrigation fluid inlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet coupling and the capacitance chamber;
i) an irrigation fluid outlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet flow passage and the irrigation fluid inlet coupling through the capacitance chamber and the irrigation fluid outlet coupling to form a continuous irrigation fluid flow passage between the irrigation fluid inlet coupling and the irrigation fluid outlet coupling; and
j) a valve on the interface wall of the housing for controlling the irrigation fluid flow in the continuous irrigation fluid flow passage.
5 Assignments
0 Petitions
Accused Products
Abstract
A cassette having a one-piece housing adapted to be held in operative association with a control console. Integrally formed channels on the external surface of the housing form three sides of various fluid flow passages within the cassette. A plastic gasket adhered to the cassette seals the channels and forms the fourth side of the fluid flow passages. A self-winding peristaltic pump tube extending from the housing cooperates with a slotted peristaltic pump roller head in the console and an internal capacitance chamber within the irrigation conduit reduces pressure fluctuations in the irrigation fluid flow.
364 Citations
10 Claims
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1. A cassette for use in combination with a surgical handpiece and a control console for controlling irrigation and aspiration fluid flows in the handpiece, comprising:
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a) a housing having an external surface and an interface wall adapted to be held in operative association with the control console; b) a means for generating a partial vacuum through interaction with a motive force in the control console having an inlet and a discharge line connected to a waste container; c) an aspiration fluid inlet coupling integrally formed in the housing; d) an irrigation fluid inlet coupling integrally formed in the housing; e) an irrigation fluid outlet coupling integrally formed in the housing; f) an aspiration fluid flow passage integrally formed in the housing in fluid communication with the aspiration fluid inlet coupling and the partial vacuum generating means inlet; g) an irrigation fluid capacitance chamber integrally formed in the housing; h) an irrigation fluid inlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet coupling and the capacitance chamber; i) an irrigation fluid outlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet flow passage and the irrigation fluid inlet coupling through the capacitance chamber and the irrigation fluid outlet coupling to form a continuous irrigation fluid flow passage between the irrigation fluid inlet coupling and the irrigation fluid outlet coupling; and j) a valve on the interface wall of the housing for controlling the irrigation fluid flow in the continuous irrigation fluid flow passage. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A cassette for use in combination with a surgical handpiece and a control console for controlling irrigation and aspiration fluid flows in the handpiece, comprising:
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a) a housing having an external surface and an interface wall adapted to be held in operative association with the control console; b) a peristaltic pump tube loop projecting outward from the housing opposite the interface wall and having an inlet and a discharge line in fluid communication with a waste container; c) an aspiration fluid inlet coupling integrally formed in the housing; d) an irrigation fluid inlet coupling integrally formed in the housing; e) an irrigation fluid outlet coupling integrally formed in the housing; f) an irrigation fluid capacitance chamber integrally formed in the housing; g) an aspiration fluid flow passage integrally formed in the housing in fluid communication with the aspiration fluid inlet coupling and the peristaltic pump tube inlet; g) an irrigation fluid flow passage integrally formed in the housing in fluid communication with the aspiration fluid inlet coupling and the peristaltic pump tube inlet; h) an irrigation fluid inlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet coupling and the capacitance chamber; i) an irrigation fluid outlet flow passage integrally formed in the housing in communication with the irrigation fluid inlet flow passage and the irrigation fluid inlet coupling through the capacitance chamber and the irrigation fluid outlet coupling to form a continuous irrigation fluid flow passage between the irrigation fluid inlet coupling and the irrigation fluid outlet coupling; and j) a diaphragm valve on the interface wall of the housing spaced within the continuous irrigation fluid flow passage between the irrigation fluid inlet flow passage and the irrigation fluid outlet flow passage in operative association with a valve actuator on the console to control irrigation fluid flow in the continuous irrigation fluid flow passage. - View Dependent Claims (8, 9, 10)
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Specification