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US 10,624,616 B2Granted
Surgical instruments including sensors
AssigneeCovidien LP
InventorsNilay Mukherjee, Andrew Miesse, David C. Racenet
Life of this patent
Estimating the term…
Abstract
A surgical instrument includes a handle portion, first and second jaw members operably coupled to the handle portion, and first and second sensors associated with the first or second jaw members. The first sensor is configured to measure local perfusion in tissue grasped between the first and second jaw members, and the second sensor is configured to measure a pressure applied to the tissue by the first and second jaw members.
Claims14
A surgical instrument, comprising:
- a handle portion;
- first and second jaw members operably coupled to the handle portion and movable relative to one another in response to an actuation of the handle portion;
- a first sensor associated with one of the first or second jaw members and configured to measure local perfusion in tissue grasped between the first and second jaw members;
- a second sensor associated with one of the first or second jaw members and configured to measure a pressure applied to the tissue by the first and second jaw members;
- a display disposed on the handle portion;
- and
- a processor in communication with the first and second sensors, wherein the processor is configured to display on the display:
- the measured local perfusion;
- the measured pressure applied to the tissue by the first and second jaw members;
- and
- an index representative of the ratio of a surface perfusion pressure measured using the first and second sensors and a systemic blood pressure, wherein the processor is pre-programmed to:
- apply a clamping pressure to the tissue by the first and second jaw members sufficient to cease perfusion through the tissue;
- reduce the clamping pressure applied to the tissue by the first and second jaw members after the perfusion through the tissue ceases;
- and
- automatically send the pressure measured by the second sensor to the display when the first sensor determines that perfusion through the grasped tissue restarts.
12 more elements
A tissue grasper, comprising:
- a handle portion;
- an elongated shaft extending distally from the handle portion;
- first and second jaw members operably coupled to the handle portion and movable relative to one another in response to an actuation of the handle portion;
- a first sensor disposed on one of the first or second jaw members and configured to measure local perfusion in tissue grasped between the first and second jaw members;
- a second sensor disposed on one of the first or second jaw members and configured to measure a pressure applied to the tissue by the first and second jaw members;
- a display disposed on the handle portion;
- and
- a processor in communication with the first and second sensors, wherein the processor is configured to display on the display:
- the measured local perfusion;
- the measured pressure applied to the tissue by the first and second jaw members;
- and
- an index representative of the ratio of a surface perfusion pressure measured using the first and second sensors and a systemic blood pressure, wherein the processor is pre-programmed to:
- apply a clamping pressure to the tissue by the first and second jaw members sufficient to cease perfusion through the tissue;
- reduce the clamping pressure applied to the tissue by the first and second jaw members after the perfusion through the tissue ceases;
- and
- automatically send the pressure measured by the second sensor to the display when the first sensor determines that perfusion through the grasped tissue restarts.
13 more elements
A surgical instrument, comprising:
- a handle portion;
- first and second jaw members operably coupled to the handle portion and movable relative to one another in response to an actuation of the handle portion;
- a first sensor associated with one of the first or second jaw members and configured to measure local perfusion in tissue grasped between the first and second jaw members;
- a second sensor associated with one of the first or second jaw members and configured to measure a pressure applied to the tissue by the first and second jaw members;
- and
- a processor configured to:
- cause the first and second jaw members to clamp the tissue therebetween to cease perfusion through the tissue;
- reduce a clamping pressure of the first and second jaw members after perfusion through the tissue ceases;
- and
- send the pressure measured by the second sensor to a display when the first sensor determines that perfusion through the grasped tissue restarts.
7 more elements
Dependencies are inferred from the claim text.