Phacoemulsification hand piece with integrated aspiration pump
First Claim
Patent Images
1. An ophthalmic surgical hand piece comprising:
- a driver coupled to a horn, the horn coupled to a needle;
an aspiration pump integral with the hand piece, the aspiration pump located close to the needle, the aspiration pump comprising;
a motor; and
a shaft having a spiral structure coupled to the motor;
a rigid length of aspiration line located between the aspiration pump and the needle, anda removable cartridge, the removable cartridge comprising;
a flexible tubing pressed against the spiral structure operable to cause movement of fluid within the flexible tubing as the shaft is rotated by the motor; and
a securing mechanism operable to secure the removable cartridge to a remainder of the hand piece.
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Abstract
An ophthalmic surgical hand piece comprises a driver coupled to a horn. The horn is coupled to a needle. An aspiration pump is integral with the hand piece and is located close to the needle. A rigid length of aspiration line is located between the aspiration pump and the needle. An optional pressure sensor is located between the aspiration pump and the needle as well.
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Citations
8 Claims
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1. An ophthalmic surgical hand piece comprising:
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a driver coupled to a horn, the horn coupled to a needle; an aspiration pump integral with the hand piece, the aspiration pump located close to the needle, the aspiration pump comprising; a motor; and a shaft having a spiral structure coupled to the motor; a rigid length of aspiration line located between the aspiration pump and the needle, and a removable cartridge, the removable cartridge comprising; a flexible tubing pressed against the spiral structure operable to cause movement of fluid within the flexible tubing as the shaft is rotated by the motor; and a securing mechanism operable to secure the removable cartridge to a remainder of the hand piece. - View Dependent Claims (2, 3, 4)
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5. An ophthalmic surgical hand piece comprising:
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a driver coupled to a horn, the horn coupled to a needle; an aspiration pump integral with the hand piece, the aspiration pump located close to the needle, the aspiration pump comprising; a motor; and a shaft having a spiral structure coupled to the motor; a disposable segment coupled to the aspiration pump, the disposable segment comprising; a flexible tubing pressed against the spiral structure operable to cause movement of fluid within the flexible tubing as the shaft is rotated by the motor; and a securing mechanism operable to secure the disposable segment; and a rigid length of aspiration line located between the aspiration pump and the needle. - View Dependent Claims (6, 7, 8)
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Specification