Retractor device with oximeter sensor and force sensor
First Claim
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1. A device comprising:
- a retractor, for retracting a tissue, comprising a shaft, a first member 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 via the first member; and
a second member, wherein the force sensor comprises a first connection point and a second connection point, and the first connection point of the force sensor is coupled to the first member and the second member is coupled to the second connection point of the force sensor.
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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.
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Citations
21 Claims
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1. A device comprising:
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a retractor, for retracting a tissue, comprising a shaft, a first member 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 via the first member; and a second member, wherein the force sensor comprises a first connection point and a second connection point, and the first connection point of the force sensor is coupled to the first member and the second member is coupled to the second connection point of the force sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device comprising:
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a retractor, for retracting a tissue, comprising a shaft, a first member 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 member, 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 member and the second member is coupled to the second end of the force sensor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method comprising:
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providing a retractor with a first member, a shaft, and a tip having a bottom portion and a blade portion; forming at least two openings in the bottom portion of the retractor; attaching a force sensor to the first member; and attaching a second member to the force sensor. - View Dependent Claims (18, 19, 20, 21)
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Specification