Ultrasonic cutting and coagulation knife using transverse vibrations
AssigneeSound Surgical Technologies LLC
InventorWilliam W. Cimino
Life of this patent
Estimating the term…
Abstract
An ultrasonic frequency surgical dissecting device including a handpiece with a surgical blade that vibrates in a direction transverse to a long axis passing through the handpiece and blade for improved cutting and coagulation.
Claims21
A surgical handpiece with a surgical blade that vibrates at ultrasonic frequencies for cutting and coagulating animal tissue, the surgical handpiece and surgical blade comprising:
- a long axis passing through the surgical handpiece and surgical blade;
- a most distal portion of the surgical blade that is disposed away from the surgical handpiece for contacting tissue of a patient;
- and
- the most distal portion of the surgical blade having a vibratory motion that is substantially perpendicular to the long axis.
A surgical handpiece with a surgical blade that vibrates at ultrasonic frequencies for cutting and coagulating animal tissue, the surgical handpiece and surgical blade comprising:
- a long axis passing through the ultrasonic surgical handpiece and surgical blade;
- an ultrasonic motor being located within the surgical handpiece and aligned along the long axis;
- a most distal portion of the surgical blade that is disposed away from the surgical handpiece for contacting tissue of a patient;
- and
- the most distal portion of the surgical blade having a vibratory motion that is substantially perpendicular to the long axis, the vibratory motion generated by the ultrasonic motor and conducted to the surgical blade.
A surgical handpiece with a surgical blade that vibrates at ultrasonic frequencies for cutting and coagulating animal tissue, the surgical handpiece and surgical blade comprising:
- a long axis passing through the surgical handpiece and surgical blade;
- a dividing plane passing through the surgical handpiece and surgical blade that includes the long axis;
- an ultrasonic motor located within the ultrasonic surgical handpiece and aligned along the long axis for generating transverse vibrations;
- a positive side of the ultrasonic motor and a negative side of the ultrasonic motor as defined by the dividing plane, the positive side that expands when the negative side contracts and vice versa;
- a most distal portion of the surgical blade that is disposed away from the surgical handpiece for contacting tissue of a patient;
- and
- a vibratory motion of the most distal portion of the surgical blade that is substantially perpendicular to the long axis and in a plane that includes the long axis and that is perpendicular to the dividing plane.
A surgical handpiece with a surgical blade that vibrates at ultrasonic frequencies for cutting and coagulating animal tissue, the surgical handpiece and surgical blade comprising:
- a long axis passing through the surgical handpiece and surgical blade;
- a most distal portion of the surgical blade that is disposed away from the surgical handpiece for contacting tissue of a patient;
- and
- a vibratory motion of the most distal portion of the surgical blade that is substantially perpendicular to the long axis to provide a substantial cutting and coagulation effect.
A method of using a surgical handpiece and surgical blade, the method comprising:
- applying a distal tip of the surgical blade to the tissue of a patient;
- and
- vibrating the distal tip of the surgical blade substantially perpendicular to a long axis, the long axis passing through the surgical handpiece and surgical blade, and cutting and coagulating the tissue of the patient.
Dependencies are inferred from the claim text.