Ultrasonic device and method for tissue coagulation
First Claim
1. An ultrasonic surgical apparatus for the coagulation of animal tissue having a handle for manipulation by a surgeon, an ultrasonic transducer for generating ultrasonic vibration, and an ultrasonic applicator attached to the ultrasonic transducer and extending from the handle for delivery of ultrasonic vibrations to the animal tissue, wherein said apparatus further comprises:
- a distal portion on the ultrasonic applicator having a generally round cross-section with a diameter between approximately 2 and 6 millimeters to provide a broad surface for coagulation and to avoid cutting of the animal tissue;
an elongated support member releasably attached to the surgical handle and extending to the distal portion of the ultrasonic applicator;
a movable jaw with a jaw surface attached to the elongated support member adjacent the distal portion of the ultrasonic applicator for movement toward said distal portion to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters, from said distal portion, wherein the movable jaw is configured to grasp and hold the animal tissue during coagulation while allowing the animal tissue to flow and coagulate; and
a stop for establishing the predefined clearance.
13 Assignments
0 Petitions
Accused Products
Abstract
An ultrasonic surgical device for the coagulation of animal tissue having an ultrasonic applicator and a movable jaw with a jaw surface adjacent the distal portion of the ultrasonic applicator for movement toward the applicator to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters from the applicator. The device may also include a mechanical cutting element that can be extended into the clearance to cut the tissue and means to vary the predefined clearance without removing the applicator from the patient. Tissue coagulating and cutting can be maximized and performed separately and can be easily monitored by the surgeon.
250 Citations
26 Claims
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1. An ultrasonic surgical apparatus for the coagulation of animal tissue having a handle for manipulation by a surgeon, an ultrasonic transducer for generating ultrasonic vibration, and an ultrasonic applicator attached to the ultrasonic transducer and extending from the handle for delivery of ultrasonic vibrations to the animal tissue, wherein said apparatus further comprises:
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a distal portion on the ultrasonic applicator having a generally round cross-section with a diameter between approximately 2 and 6 millimeters to provide a broad surface for coagulation and to avoid cutting of the animal tissue; an elongated support member releasably attached to the surgical handle and extending to the distal portion of the ultrasonic applicator; a movable jaw with a jaw surface attached to the elongated support member adjacent the distal portion of the ultrasonic applicator for movement toward said distal portion to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters, from said distal portion, wherein the movable jaw is configured to grasp and hold the animal tissue during coagulation while allowing the animal tissue to flow and coagulate; and a stop for establishing the predefined clearance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An ultrasonic surgical apparatus for the treating of animal tissue having a handle for manipulation by a surgeon an ultrasonic transducer for generating ultrasonic vibration, and an ultrasonic applicator attached to the ultrasonic transducer and extending from the handle for delivery of ultrasonic vibrations to the animal tissue, wherein said apparatus further comprises:
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a distal portion on the ultrasonic applicator having a generally round cross-section with a diameter between approximately 2 and 6 millimeters to provide a broad surface for coagulation and to avoid cutting of the animal tissue; an elongated support member releasably attached to the surgical handle and extending to the distal portion of the ultrasonic applicator; a movable jaw with a jaw surface attached to the elongated support member adjacent the distal portion of the ultrasonic applicator for movement toward said distal portion to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters from said distal portion, wherein the movable jaw is configured to grasp and hold the animal tissue during coagulation while allowing the animal tissue to flow and coagulate as the animal tissue is heated by vibration of the ultrasonic applicator; a stop for establishing the predefined clearance; and a mechanical cutting device for movement parallel to the ultrasonic applicator to cut the animal tissue located between the ultrasonic applicator and the clamp. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for the surgical coagulation of animal tissue comprising:
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locating a portion of the animal tissue between an ultrasonic application having a generally round cross-section with a diameter between approximately 2 and 6 millimeters to provide a broad surface for coagulation and to avoid cutting of the animal tissue; and a clamp located adjacent the ultrasonic tissue; moving the clamp toward the ultrasonic applicator to a predefined clearance of between about 0.075 to about 1.9 millimeters from the ultrasonic applicator to grasp and hold the desired tissue during coagulation while providing a zone for tissue flow and coagulation, wherein the predetermined clearance is established by a stop; and applying ultrasonic vibrations to the portion of the tissue via the ultrasonic applicator sufficient to cause coagulation of the tissue. - View Dependent Claims (21, 22)
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23. A method for-surgically treating animal tissue with minimal bleeding comprising:
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locating the animal tissue between an ultrasonic applicator having a generally round cross-section with a diameter between approximately 2 and 6 millimeters to provide a broad surface for coagulation and to avoid cutting of the animal tissue; moving the clamp toward the ultrasonic applicator to a predefined clearance of between about 0.075 to about 1.9 millimeters from the ultrasonic applicator to grasp and hold the animal tissue during coagulation while providing a zone for tissue flow and coagulation as the animal tissue is heated by vibration of the ultrasonic applicator, wherein the predetermined clearance is established by a stop; applying ultrasonic vibrations to the animal tissue via the ultrasonic applicator sufficient to cause coagulation of the animal tissue; and cutting said tissue after it has been coagulated using a mechanical cutting device. - View Dependent Claims (24, 25, 26)
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Specification