Energy-based medical treatment system and method
First Claim
1. An energy-based medical treatment system comprising:
- a) an energy-based clamp coagulator adapted to clamp patient tissue;
b) an acoustic-impedance measurer operatively connected to the energy-based clamp coagulator to measure an acoustic impedance of the clamped patient tissue;
c) a force measurer operatively connected to the energy-based clamp coagulator to measure a clamp force on the clamped patient tissue; and
d) a controller which compensates the measured acoustic impedance of the patient tissue for clamp pressure using at least the measured clamp force.
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Accused Products
Abstract
A method for medical treatment includes beginning coagulating patient tissue using an energy-based clamp coagulator, determining the clamping force, and measuring the acoustic impedance of the patient tissue. The method also includes compensating the measured acoustic impedance for clamp pressure and monitoring the coagulation using at least the compensated measured acoustic impedance. A first medical treatment system includes an energy-based clamp coagulator, an acoustic-impedance measurer, and a force measurer. A second system includes an energy-based clamp coagulator having a clamping member which includes, or is adapted to function as, an electrical-impedance-measuring electrode for measuring an electrical impedance of the clamped patient tissue. A third system includes an energy-based clamp coagulator having a clamping member which includes, or is adapted to function as, a temperature sensor for measuring a temperature of the clamped patient tissue.
1165 Citations
18 Claims
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1. An energy-based medical treatment system comprising:
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a) an energy-based clamp coagulator adapted to clamp patient tissue; b) an acoustic-impedance measurer operatively connected to the energy-based clamp coagulator to measure an acoustic impedance of the clamped patient tissue; c) a force measurer operatively connected to the energy-based clamp coagulator to measure a clamp force on the clamped patient tissue; and d) a controller which compensates the measured acoustic impedance of the patient tissue for clamp pressure using at least the measured clamp force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An energy-based medical treatment system comprising:
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a) an energy-based clamp coagulator adapted to clamp patient tissue; b) an acoustic-impedance measurer operatively connected to the energy-based clamp coagulator, the acoustic-impedance measurer determining a value of acoustic impedance based on a generator output power; c) a force measurer operatively connected to the energy-based clamp coagulator, the force measurer determining a value of clamping force based on a force transducer output; and d) a controller generating a value of compensated acoustic impedance from the value of acoustic impedance based on at least the value of clamping force, wherein the value of compensated acoustic impedance is corrected to a value less than the value of acoustic impedance with increasing values of clamping force. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification