Clip-style medical sensor and technique for using the same
First Claim
Patent Images
1. A sensor adapted to be applied to a patient'"'"'s tissue comprising:
- a sensor body having a first portion and a second portion biased towards one another by a spring force;
a resilient material disposed on the first portion of the sensor body;
at least one sensing element disposed on a substrate, wherein the substrate is associated with an opposing surface of the resilient material such that the resilient material is between the substrate and the sensor body; and
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 and wherein a portion of the spring force is configured to be absorbed by the resilient material when the sensor is applied to the patient'"'"'s tissue such that the sensor body applies a pressure that is sufficient to overcome a venous pressure but not an arterial pressure of the patient.
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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.
960 Citations
20 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 biased towards one another by a spring force; a resilient material disposed on the first portion of the sensor body;
at least one sensing element disposed on a substrate, wherein the substrate is associated with an opposing surface of the resilient material such that the resilient material is between the substrate and the sensor body; anda 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 and wherein a portion of the spring force is configured to be absorbed by the resilient material when the sensor is applied to the patient'"'"'s tissue such that the sensor body applies a pressure that is sufficient to overcome a venous pressure but not an arterial pressure of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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 biased towards one another by a spring force; a resilient material disposed on the first portion of the sensor body;
at least one sensing element disposed on a substrate, wherein the substrate is associated with an opposing surface of the resilient material such that the resilient material is between the substrate and the sensor body; anda stopping element configured to contact the first portion and the second portion when the sensor is applied to a patient'"'"'s tissue, wherein the stopping element is capable of establishing a minimum distance between the first portion and the second portion and wherein a portion of the spring force is configured to be absorbed by the resilient material when the sensor is applied to the patient'"'"'s tissue such that the sensor body applies a pressure that is sufficient to overcome a venous pressure but not an arterial pressure of the patient. - View Dependent Claims (13, 14)
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15. 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 biased towards one another by a spring force; 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 (16, 17, 18, 19, 20)
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Specification