Surgical instrument to assess tissue characteristics
First Claim
Patent Images
1. A surgical instrument for use in the treatment of a lesion in a tissue, comprising:
- a housing having an external gripping portion and a sensor portion having a conductive surface, the sensor portion adapted to be in conductive contact with a lesion in a tissue;
an energy source adapted for emitting an energy signal into the lesion, the energy signal configured to pass through the lesion and at least partially reflect off a boundary between the lesion and the tissue;
a sensor adapted for detecting the reflected signal; and
a processor for determining the volume of the lesion based on the reflected signal.
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Abstract
A surgical instrument for assessing tissue characteristics such as tissue density and volume is disclosed. The surgical instrument is hand-held and includes transducers adapted for emitting and/or receiving acoustic signals. The surgical instrument utilizes pulse-echo to determine tissue characteristics. The surgical instrument may be utilized to determine such things as the size of a lesion and whether the lesion has been completely removed or filled with graft material.
169 Citations
83 Claims
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1. A surgical instrument for use in the treatment of a lesion in a tissue, comprising:
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a housing having an external gripping portion and a sensor portion having a conductive surface, the sensor portion adapted to be in conductive contact with a lesion in a tissue;
an energy source adapted for emitting an energy signal into the lesion, the energy signal configured to pass through the lesion and at least partially reflect off a boundary between the lesion and the tissue;
a sensor adapted for detecting the reflected signal; and
a processor for determining the volume of the lesion based on the reflected signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of determining the size of a lesion of a tissue, comprising:
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placing an acoustic transducer and a sensor in conductive contact with the lesion, the acoustic transducer adapted to emit acoustic signals and the sensor adapted to receive reflected acoustic signals;
emitting an acoustic signal into the lesion, the acoustic signal adapted to pass through the lesion and at least partially reflect off a boundary of the lesion adjacent the tissue;
receiving at least a portion of the reflected signal at the sensor; and
determining the volume of the lesion based on the portion of the reflected signal received. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54)
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36. A method of removing of a lesion of a bone, comprising:
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determining the volume of the lesion void by placing a hand-held ultrasonic device within the lesion void; and
debriding the lesion to produce a cavity in the bone substantially free of lesion.
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50. A surgical instrument for sensing and manipulation, comprising:
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a tissue manipulation device having a proximal end adapted for engaging tissue;
an energy source disposed on said tissue manipulation device adjacent said proximal end and adapted for emitting an energy signal into the tissue, the energy signal configured to pass through the tissue and at least partially reflect off a boundary between the tissue and a substance different than the tissue;
a sensor adapted for detecting the reflected signal; and
a processor for determining the presence of the substance different than the tissue based on the reflected signal.
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55. A kit for treatment of a lesion of a bone, comprising:
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a first container adapted for holding a first volume of bone void filler;
a second container adapted for holding a second volume of bone void filler, the second volume being greater than the first volume; and
a hand-held ultrasonic device adapted for determining the volume of a lesion of a bone and indicating which of the first container or the second container corresponds to the volume of the lesion. - View Dependent Claims (56)
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57. A system for detection and removal of a lesion in a tissue, comprising:
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an energy source adapted for emitting an energy signal into the lesion, the energy signal configured to pass through the lesion and at least partially return a reflected signal off a boundary between the lesion and the tissue;
a sensor adapted for detecting the reflected signal;
a processor adapted for determining the three-dimensional location and approximate volume of the lesion based on the reflected signal and providing a control signal; and
an automated lesion removal tool, said automated lesion removal tool guided by said control signal to remove the lesion from the tissue.
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58. A handheld surgical instrument for use in detecting a foreign body within a tissue, comprising:
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a housing having an external gripping portion and a sensor portion having a conductive surface, the sensor portion adapted to be in conductive contact with a surface of the tissue;
an energy source adapted for emitting an energy signal into the tissue, the energy signal configured to pass through the tissue and at least partially reflect off a boundary between the foreign body and the tissue;
a sensor adapted for detecting the reflected signal; and
a processor for determining a characteristic of the foreign body based on the reflected signal. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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77. A method of detecting a foreign body within a tissue, comprising:
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placing an energy transducer and a sensor in conductive contact with the tissue, the energy transducer adapted to emit energy signals and the sensor adapted to receive reflected energy signals, the energy transducer and the sensor positioned within a portable handheld device;
emitting an energy signal into the tissue, the energy signal adapted to pass through the tissue and at least partially reflect off a boundary of the foreign body within the tissue;
receiving at least a portion of the reflected signal at the sensor; and
determining a characteristic of the foreign body based on the portion of the reflected signal received. - View Dependent Claims (78, 79, 80)
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81. A method of removing a foreign body from a tissue, comprising:
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detecting the presence of the foreign body within the tissue by placing a hand-held device in conductive contact with the tissue, the hand-held device comprising an energy source adapted for emitting an energy signal into the tissue, the energy signal configured to pass through the tissue and at least partially reflect off a boundary between the foreign body and the tissue;
a sensor adapted for detecting the reflected signal; and
a processor for determining a characteristic of the foreign body based on the reflected signal;
determining the location and volume of the foreign body using the hand-held device;
utilizing the location and volume of the foreign body to guide a surgical instrument to the foreign body; and
removing the foreign body with the surgical instrument. - View Dependent Claims (82, 83)
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Specification