Clamp coagulator/cutting system for ultrasonic surgical instruments
DC CAFCFirst Claim
1. Ultrasonic surgical apparatus comprising:
- a housing;
an ultrasonic element carried by said housing for generating ultrasonic vibration;
a surgical blade having an elongated edge carried by said housing and coupled to said ultrasonic element for receiving ultrasonic vibration therefrom for vibration in a longitudinal direction parallel to said blade edge;
a clamp carried by said apparatus in opposition to said blade and along one side thereof for biasing tissue between the clamp and the blade for movement in a direction toward the blade and substantially normal to the longitudinal direction of vibration of said blade; and
means for selectively displacing said clamp toward and away from said blade.
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Accused Products
Abstract
An ultrasonic surgical apparatus includes a surgical instrument having a handpiece with a transducer for converting an electrical signal into longitudinal vibratory motion of a blade connected to the handpiece and an accessory releasably connected to the handpiece to enable clamping of tissue against the vibrating blade to afford improved coagulating and cutting of tissue. Scissors-like grips actuate a pivoted clamp jaw along one side of the ultrasonically vibrating blade to compress and bias tissue against the blade in a direction normal to the direction of longitudinal vibratory movement. The clamp jaw and blade are rotatable relative to one another to align a selected blade edge of a multi-edged blade with the clamp jaw for cutting and coagulating while clamping or circumferentially spacing a selected blade edge from the clamp jaw for cutting and coagulating without clamping.
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Citations
42 Claims
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1. Ultrasonic surgical apparatus comprising:
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a housing; an ultrasonic element carried by said housing for generating ultrasonic vibration; a surgical blade having an elongated edge carried by said housing and coupled to said ultrasonic element for receiving ultrasonic vibration therefrom for vibration in a longitudinal direction parallel to said blade edge; a clamp carried by said apparatus in opposition to said blade and along one side thereof for biasing tissue between the clamp and the blade for movement in a direction toward the blade and substantially normal to the longitudinal direction of vibration of said blade; and means for selectively displacing said clamp toward and away from said blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Ultrasonic surgical apparatus comprising:
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a handpiece; an ultrasonic element carried by said handpiece for generating ultrasonic vibration; a surgical blade having an elongated edge carried by said handpiece and coupled to said ultrasonic element for receiving ultrasonic vibration therefrom for vibration in a longitudinal direction substantially parallel to said blade edge; an accessory including a clamp assembly, means for releasably connecting said clamp assembly and said handpiece to one another, said clamp assembly including a clamp disposed in opposition to said blade and along one side thereof, when said accessory and said handpiece are connected to one another, for biasing tissue between the clamp and the blade for movement in a direction toward the blade and normal to the longitudinal direction of vibration of said blade; and means carried by said accessory for selectively displacing said clamp toward and away from said blade. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An accessory for an ultrasonic surgical apparatus having a handpiece carrying an ultrasonic element for generating ultrasonic vibration and a blade having an elongated edge and connected to said ultrasonic element for receiving ultrasonic vibration from said ultrasonic element for vibration in a longitudinal direction parallel to the blade edge comprising:
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a clamp assembly including a clamp jaw carried for movement between clamp jaw open and clamp jaw closed positions, and a clamp jaw activating means for moving said clamp jaw from said open position to said closed position; means carried by said accessory for releasably connecting said accessory and the handpiece to one another, said accessory, when connected to the handpiece, being configured to locate said clamp jaw in opposition to the blade and along one side thereof for biasing tissue between said clamp jaw and the blade for movement in a direction toward the blade and normal to the direction of vibration of said blade when said clamp jaw is moved toward said clamp jaw closed position. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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42. Ultrasonic surgical apparatus comprising:
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a housing; an ultrasonic element carried by said housing for generating ultrasonic vibration; an elongated surgical blade carried by said housing and coupled to said ultrasonic element for receiving ultrasonic vibration therefrom for vibration in a longitudinal direction parallel to said blade; a clamp carried by said apparatus in opposition to a portion of said blade for biasing tissue between the clamp and the blade portion for movement in a direction toward the blade portion, said clamp having a clamping surface formed of compliant material and in opposition to said blade portion; and means for selectively displacing said clamp toward and away from said blade portion.
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Specification