Fluid-flow cassette for an ophthalmic surgical instrument
First Claim
1. A tubing cartridge for engagement with a cartridge-receiving portion of an instrument, the cartridge-receiving portion having a substantially flat surface with a locking mechanism and first and second pinch valves projecting outwardly from the flat surface, the tubing cartridge comprising:
- a) a housing having a case with a detachable rear cover, the rear cover containing first and second valve apertures and a locking aperture, and a locking mechanism activator thereon;
b) an irrigation tube having an input end and an output end and a housed portion wherein the housed portion is contained within the housing and the input and output ends of the irrigation tube extend from the housing; and
wherein when the tubing cartridge is placed against the cartridge-receiving portion and the locking mechanism activates, a first portion of the housed portion of the irrigation tube engages the first pinch valve.
2 Assignments
0 Petitions
Accused Products
Abstract
A cartridge or cassette adapted to be attached to an apparatus for controlling the flow of fluid to and from a surgical handpiece. The cassette includes irrigation and aspiration fluid-flow paths and consisting of interconnected tubing having inlet and outlet port'"'"'s associated with the case of the cassette that are accessible for attachment to fluid and vacuum sources. The rear cover of the case includes cutouts enabling the cassette to be releasably and registerably attached to a surgical instrument. A sensor on the instrument engages a portion of the cassette to verify that the cassette is correctly positioned and is appropriate for use with the instrument. Locking means on the instrument releasably engage the cassette in position. Irrigation fluid may be redirected into the aspiration channel of the handpiece in response to a reflux signal.
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Citations
46 Claims
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1. A tubing cartridge for engagement with a cartridge-receiving portion of an instrument, the cartridge-receiving portion having a substantially flat surface with a locking mechanism and first and second pinch valves projecting outwardly from the flat surface, the tubing cartridge comprising:
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a) a housing having a case with a detachable rear cover, the rear cover containing first and second valve apertures and a locking aperture, and a locking mechanism activator thereon;
b) an irrigation tube having an input end and an output end and a housed portion wherein the housed portion is contained within the housing and the input and output ends of the irrigation tube extend from the housing; and
wherein when the tubing cartridge is placed against the cartridge-receiving portion and the locking mechanism activates, a first portion of the housed portion of the irrigation tube engages the first pinch valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A pump/sensor cartridge for engagement with a cartridge-receiving portion of an instrument, the cartridge-receiving portion of the instrument being a substantially flat surface having a locking mechanism, a pinch valve, and a peristaltic pump head projecting outwardly from the surface, the pump/sensor cartridge comprising:
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a) a housing having a case and a rear cover, the rear cover having a valve aperture and a locking aperture and a locking mechanism activator thereon;
b) an aspiration tube having an input end and an output end, a housed portion and a looped portion wherein the housed portion of the aspiration tube is contained within the housing and the looped portion and the input and output ends of the aspiration tube extend from the housing;
wherein when the pump/sensor cartridge is placed against the cartridge-receiving portion and the locking mechanism activates, the housed portion of the aspiration tube engages the first pinch valve and the looped portion of the aspiration tube engages the peristaltic pump head. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A cartridge for engagement with a cartridge-receiving portion of a surgical instrument comprising:
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a) a housing and b) an identifier associated with the housing wherein the identifier is capable of indicating whether the cartridge can be used with the instrument, wherein the cartridge is a tubing cartridge or a pump/sensor cartridge. - View Dependent Claims (17, 18, 19)
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20. A cartridge for engagement with a cartridge-receiving portion of a phacoemulsification instrument comprising:
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a) a housing and b) an identifier associated with the housing, the identifier capable of indicating whether the cartridge can be used with the instrument, wherein the cartridge is a tubing cartridge or a pump/sensor cartridge. - View Dependent Claims (21, 22, 23)
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24. A cartridge for engagement with a cartridge-receiving portion of a phacoemulsification instrument comprising:
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a) a housing and b) an identifier associated with the housing, the identifier capable of indicating whether the cartridge can be used with the instrument, wherein the cartridge is a tubing cartridge or a pump/sensor cartridge. - View Dependent Claims (25, 26, 27)
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28. A cassette for engagement with a cassette-receiving portion of a surgical instrument comprising:
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a) a housing having a pump/sensor section and a tubing section and b) an identifier associated with the housing wherein the identifier is capable of indicating whether the cassette can be used with the instrument. - View Dependent Claims (29, 30)
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31. A cassette for engagement with a cassette-receiving portion of a phacoemulsification instrument comprising:
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a) a housing having a pump/sensor section and a tubing section and b) an identifier associated with the housing wherein the identifier is capable of indicating whether the cassette can be used with the instrument. - View Dependent Claims (32, 33)
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34. A method comprising:
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a) sensing an identifier on a tubing cartridge or a pump/sensor cartridge mounted on an instrument;
b) determining if the cartridge is capable of being used with the instrument based on the identifier; and
c) locking the cartridge in place if the cartridge is capable of being used with the instrument. - View Dependent Claims (35, 36, 37, 38, 46)
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39. A method comprising:
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a) sensing an identifier on a cassette mounted on an instrument;
b) determining if the cassette is capable of being used with the instrument based on the identifier; and
c) locking the cassette in place if the cassette is capable of being used with the instrument. - View Dependent Claims (40, 41, 42, 43, 44, 45)
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Specification