Clip-style medical sensor and technique for using the same
First Claim
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1. A sensor adapted to be applied to a patient'"'"'s tissue comprising:
- a sensor body having a first portion and a second portion pivotably coupled to one another;
a spring adapted to bias the first portion towards the second portion;
a stopping element configured to contact the first portion and the second portion when the sensor is applied to the patient'"'"'s tissue, wherein the stopping element is capable of establishing a minimum distance between the first portion and the second portion that results in the sensor body applying a pressure to the patient'"'"'s tissue that is sufficient to overcome a venous pressure but not an arterial pressure of the patient; and
at least one sensing element associated with the first portion of the sensor body.
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Accused Products
Abstract
A clip-style pulse sensor may be adapted to apply limited, even pressure to a patient'"'"'s tissue. A clip-style sensor is provided that reduces motion artifacts by exerting limited, uniform pressure to the patient tissue to reduce tissue exsanguination. Further, such a sensor provides a secure fit while avoiding discomfort for the wearer.
997 Citations
44 Claims
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1. A sensor adapted to be applied to a patient'"'"'s tissue comprising:
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a sensor body having a first portion and a second portion pivotably coupled to one another; a spring adapted to bias the first portion towards the second portion; a stopping element configured to contact the first portion and the second portion when the sensor is applied to the patient'"'"'s tissue, wherein the stopping element is capable of establishing a minimum distance between the first portion and the second portion that results in the sensor body applying a pressure to the patient'"'"'s tissue that is sufficient to overcome a venous pressure but not an arterial pressure of the patient; and at least one sensing element associated with the first portion of the sensor body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pulse oximetry system comprising:
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a pulse oximetry monitor; and a pulse oximetry sensor adapted to be operatively coupled to the monitor, the sensor comprising; a sensor body having a first portion and a second portion pivotably coupled to one another; a spring adapted to bias the first portion towards the second portion; a stopping element configured to contact the first portion and the second portion when the sensor is applied to the patient'"'"'s tissue, wherein the stopping element is capable of moving relative to the sensor body such that a minimum distance between the first portion and the second portion is adjustable to apply a pressure to the patient'"'"'s tissue that is sufficient to overcome a venous pressure but not an arterial pressure of the patient; and at least one sensing element disposed on the sensor body. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method comprising:
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applying a sensor to a patient, wherein the sensor comprises a first portion and a second portion of a sensor body pivotably coupled towards one another with a spring; and establishing a minimum distance between the first portion and the second portion by adjusting a position of a stopper in contact with the first portion and the second portion to apply a pressure to the patient'"'"'s tissue that is sufficient to overcome a venous pressure but not an arterial pressure of the patient. - View Dependent Claims (33, 34, 35)
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36. A method of manufacturing a sensor, comprising:
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providing a sensor body having a first portion and a second portion pivotably coupled towards one another; providing a spring adapted to bias the first portion towards the second portion; providing a stopping element configured to contact the first portion and the second portion when the sensor is applied to the patient'"'"'s tissue, wherein the stopping element is capable of moving relative to the sensor body such that a minimum distance between the first portion and the second portion is adjustable to apply a pressure to the patient'"'"'s tissue that is sufficient to overcome a venous pressure but not an arterial pressure of the patient; and providing at least one sensing element disposed on the sensor body. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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Specification