Tissue remover and method
First Claim
1. A method for removing hard tissue from a patient comprising:
- providing a tissue remover having a proximal end and a distal end, and a fluid guide and an energy guide extending from the proximal end towards the distal end;
inserting the tissue remover through an incision in the patient so that the distal end of the tissue remover is in proximity to hard tissue;
transmitting gas and fluid through the fluid guide of the tissue remover;
generating atomized fluid particles in an interaction zone located in close proximity to the distal end of the tissue remover by using the air and fluid transmitted through the fluid and energy guide;
providing electromagnetic energy from an energy source to an electromagnetic energy transmitter operatively mounted within the fluid and energy guide; and
transmitting the electromagnetic energy from an output end of the energy transmitter into the interaction zone, the electromagnetic energy having a wavelength which is substantially absorbed by a portion of atomized fluid particles in the interaction zone, the absorption of the electromagnetic energy by the portion of atomized fluid particles causing the portion of atomized fluid particles to expand and impart disruptive cutting forces onto the tissue in close proximity to the distal end of the tissue remover.
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Accused Products
Abstract
An electromagnetically induced cutting mechanism provides accurate cutting operations on hard or soft tissues. The electromagnetically induced cutter is adapted to interact with atomized fluid particles. A tissue remover comprises an aspiration cannula housing a fluid and energy guide for conducting electromagnetically induced cutting forces to the site within a patient'"'"'s body for aspiration of hard or soft tissue. The cannula is provided with a cannula distal end. The proximal end of the cannula is provided with fluid flow connection to an aspiration source. Separated hard or soft tissue and fluid are aspirated through the cannula distal end and the cannula by an aspiration source at the proximal end of the cannula. Methods of using such a cutter for hard or soft tissue removal are also disclosed.
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Citations
35 Claims
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1. A method for removing hard tissue from a patient comprising:
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providing a tissue remover having a proximal end and a distal end, and a fluid guide and an energy guide extending from the proximal end towards the distal end;
inserting the tissue remover through an incision in the patient so that the distal end of the tissue remover is in proximity to hard tissue;
transmitting gas and fluid through the fluid guide of the tissue remover;
generating atomized fluid particles in an interaction zone located in close proximity to the distal end of the tissue remover by using the air and fluid transmitted through the fluid and energy guide;
providing electromagnetic energy from an energy source to an electromagnetic energy transmitter operatively mounted within the fluid and energy guide; and
transmitting the electromagnetic energy from an output end of the energy transmitter into the interaction zone, the electromagnetic energy having a wavelength which is substantially absorbed by a portion of atomized fluid particles in the interaction zone, the absorption of the electromagnetic energy by the portion of atomized fluid particles causing the portion of atomized fluid particles to expand and impart disruptive cutting forces onto the tissue in close proximity to the distal end of the tissue remover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for removing hard tissue from a knee of a patient, comprising:
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a tissue remover disposed in a cannula having a proximal end and a distal end that is structured to be inserted into a patient'"'"'s knee joint, the tissue remover having a fluid guide and an energy guide extending towards the distal end of the cannula, wherein the fluid guide is structured to guide fluid and gas toward the distal end of the cannula to create atomized fluid particles; and
an energy source to provide electromagnetic energy through the energy guide to an energy transmitter that transmits the electromagnetic energy to an interaction zone located in close proximity to the distal end of the cannula where the electromagnetic energy is absorbed by atomized fluid particles in the interaction zone to impart erosive forces to cause removal of hard tissue from the patient'"'"'s knee. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 32, 33, 34, 35)
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29. A method for removing hard tissue from a knee of a patient comprising:
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providing a tissue remover having a proximal end and a distal end, and a fluid and energy guide extending from the proximal end towards the distal end;
inserting the tissue remover through an incision so that the distal end of the tissue remover is in proximity to the patient'"'"'s femur;
transmitting gas and fluid through the fluid guide of the tissue remover;
generating atomized fluid particles in an interaction zone located in close proximity to the distal end of the tissue remover by using the air and fluid transmitted through the fluid and energy guide;
providing electromagnetic energy from an energy source to an electromagnetic energy transmitter operatively mounted within the fluid and energy guide;
transmitting the electromagnetic energy from an output end of the energy transmitter into the interaction zone, the electromagnetic energy having a wavelength which is substantially absorbed by a portion of atomized fluid particles in the interaction zone, the absorption of the electromagnetic energy by the portion of atomized fluid particles causing the portion of atomized fluid particles to expand and impart disruptive cutting forces that erode the patient'"'"'s femur to expose a surface of the patient'"'"'s tibia;
removing a portion of the meniscus overlying the surface of the tibia by transmitting the electromagnetic energy to the energy transmitter to create cutting forces to erode the patient'"'"'s meniscus; and
removing a portion of the patient'"'"'s tibia to create a receptacle for a prosthetic implant. - View Dependent Claims (30, 31)
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Specification