Ultrasonic surgical apparatus
First Claim
1. An improved ultrasonic surgical apparatus comprising:
- an ultrasonic handpiece, the ultrasonic handpiece defining a central longitudinal axis, the handpiece being configured and dimensioned to be less than approximately 6 inches in length and less than approximately 0.7 inches in diameter;
a transducer housing disposed in the handpiece;
a transducer mounted within the transducer housing and being coupled to a connecting body, the connecting body coupled with a tool having a vibratable tip for transmitting ultrasonic waves to the tip from the transducer, the connecting body being constructed of titanium or its alloys;
a cooling system in fluid communication with the transducer housing for supplying cooling fluid to the transducer housing to substantially cool the transducer;
an aspirating system connected to the handpiece for aspirating fluid and tissue fragmented at the surgical site; and
an irrigation system connected to the handpiece for supplying irrigation fluid adjacent the surgical site for suspending fragmented tissue.
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Accused Products
Abstract
An improved ultrasonic surgical apparatus includes an ultrasonic handpiece. An ultrasonic fragmenting tool is mountable within the handpiece, the tool having a vibratable tip adapted for ultrasonically fragmenting tissue at a surgical site of a patient. A transducer is mounted within the handpiece and coupled to a connector body. The connector body is coupled to the tip for transmitting ultrasonic waves to the tip from the transducer, the tip and the connector body being constructed of titanium or its alloys. An aspirating system is connected to the handpiece for aspirating fluid and tissue fragmented by the tip from the surgical site. An irrigation system is connected to said handpiece for supplying irrigation fluid to the surgical site for suspending fragmented tissue by the tip. Preferred embodiments include operational frequencies of about 36 kHz.
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Citations
26 Claims
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1. An improved ultrasonic surgical apparatus comprising:
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an ultrasonic handpiece, the ultrasonic handpiece defining a central longitudinal axis, the handpiece being configured and dimensioned to be less than approximately 6 inches in length and less than approximately 0.7 inches in diameter;
a transducer housing disposed in the handpiece;
a transducer mounted within the transducer housing and being coupled to a connecting body, the connecting body coupled with a tool having a vibratable tip for transmitting ultrasonic waves to the tip from the transducer, the connecting body being constructed of titanium or its alloys;
a cooling system in fluid communication with the transducer housing for supplying cooling fluid to the transducer housing to substantially cool the transducer;
an aspirating system connected to the handpiece for aspirating fluid and tissue fragmented at the surgical site; and
an irrigation system connected to the handpiece for supplying irrigation fluid adjacent the surgical site for suspending fragmented tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An improved ultrasonic surgical apparatus having increased tissue selectivity comprising:
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an ultrasonic handpiece;
an ultrasonic fragmenting tool mounted within the handpiece, the tool having a vibratable tip adapted for ultrasonically fragmenting tissue at a surgical site of a patient and defining a longitudinal opening for removing fragmented tissue;
a transducer mounted within the handpiece and coupled to a connecting body, the connecting body coupled with the tool for transmitting ultrasonic waves at a frequency of at least 35,000 Hz to the tip from the transducer, the connecting body having a length approximately λ
/4 and defining a port in a sidewall thereof;
an aspirating system connected to the handpiece for aspirating fluid and tissue fragmented by the tip at the surgical site, the aspirating system including an aspirating tube positioned in the port of the connecting body and in fluid communication with the longitudinal opening of the ultrasonic tool; and
an irrigation system connected to said handpiece for supplying irrigation fluid adjacent the surgical site for suspending tissue fragmented by the tip. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification