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US 8,688,186 B1Granted
Retractor device with oximeter sensor and force sensor
AssigneesViOptix, Inc., The Regents of the University of California
InventorsJimmy Jian-min Mao, Robert E. Lash, Shane Burch
Life of this patent
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Abstract
A retractor device has an oximeter sensor at its tip, which allows measuring of oxygen saturation of a tissue being retracted by the retractor. The retractor device also has a force sensor which can measure an amount of force that is applied to the retracted tissue by the tip of the retractor device. The tip includes one or more openings for at least one source and detector. A specific implementation is a spinal nerve root retractor with an oximeter sensor and a force sensor.
Claims26
A device comprising:
- a retractor, for retracting a tissue, comprising a shaft, a first handle coupled to a proximal end of the shaft, and a tip coupled to a distal end of the shaft, wherein the tip comprises a retractor portion and an oximeter sensor, and the oximeter sensor comprises a first sensor opening and a second sensor opening on a bottom side of the tip;
- a force sensor operatively coupled to the retractor;
- and
- a second handle.
1 more element
A device comprising:
- a shaft;
- a first handle, coupled to a proximal end of the shaft;
- a tip, coupled to a distal end of the shaft, comprising a retractor portion and a first oximeter sensor opening and a second oximeter sensor opening;
- a force sensor having a first end and a second end, wherein the first end and the second end are on opposite sides of each other, and the first end of the force sensor is coupled to the first handle;
- and
- a second handle, coupled to the second end of the force sensor.
3 more elements
A method comprising:
- providing a retractor with a first handle, shaft, and a tip having flat bottom portion and a blade portion;
- forming at least two openings in the flat bottom portion of the retractor;
- attaching a force sensor to the first handle;
- and
- attaching a second handle to the force sensor.
2 more elements
A device comprising:
- a retractor, for retracting a tissue, comprising a shaft, a first handle coupled to a proximal end of the shaft, and a tip coupled to a distal end of the shaft, wherein the tip comprises a retractor portion and an oximeter sensor;
- a force sensor operatively coupled to the retractor;
- and
- a second handle, wherein the force sensor has a first end and a second end, the first end and the second end are on opposite sides of each other, and the first end of the force sensor is coupled to the first handle and the second handle is coupled to the second end of the force sensor.
1 more element
Dependencies are inferred from the claim text.