Wrist-mounted blood pressure measurement device
First Claim
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1. A device for sensing blood pressure of an underlying artery of a patient, the device comprising:
- a housing having a sensing region and a pivot region, the housing pivotable about the pivot region in response to a hold down pressure applied at the sensing region by a user;
a pad supported by the pivot region for engaging a wrist of the patient, the pad forming a pivot point of the housing;
a sensor interface assembly supported by the sensing region, the sensor interface assembly having a sensing surface suited for engaging tissue adjacent the artery for sensing pressure from the artery; and
a wrist connection for holding the housing adjacent the patient'"'"'s wrist, the wrist connection including a substantially U-shaped member configured for sliding onto the patient'"'"'s wrist wherein the pad is located at one end of the U-shaped member and the sensing region is spaced apart therefrom.
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Abstract
A device for sensing blood pressure of an underlying artery of a patient includes a housing having a sensing region and a pivot region. The sensing region is pivotable about the pivot region in response to a hold down pressure applied at the sensing region by a user. The device includes a sensor interface assembly that is supported by the sensing region. The sensor interface assembly includes a sensing surface suited for engaging tissue adjacent the artery for sensing pressure from the artery. A wrist connection holds the housing adjacent the patient'"'"'s wrist.
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Citations
26 Claims
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1. A device for sensing blood pressure of an underlying artery of a patient, the device comprising:
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a housing having a sensing region and a pivot region, the housing pivotable about the pivot region in response to a hold down pressure applied at the sensing region by a user;
a pad supported by the pivot region for engaging a wrist of the patient, the pad forming a pivot point of the housing;
a sensor interface assembly supported by the sensing region, the sensor interface assembly having a sensing surface suited for engaging tissue adjacent the artery for sensing pressure from the artery; and
a wrist connection for holding the housing adjacent the patient'"'"'s wrist, the wrist connection including a substantially U-shaped member configured for sliding onto the patient'"'"'s wrist wherein the pad is located at one end of the U-shaped member and the sensing region is spaced apart therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for sensing blood pressure of an underlying artery of a patient, the device comprising:
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a cantilever housing having a proximal end and a distal end, the distal end having a base section that rests against a patient'"'"'s wrist while a user applies a hold-down pressure at the proximal end;
a sensor interface assembly pivotally connected to the proximal end of the cantilever housing for sensing blood pressure information from the underlying artery;
connection means for holding the cantilever housing adjacent the patient'"'"'s wrist wherein the connection means includes a hook to partially encircle the patient'"'"'s wrist; and
a pad supported by the base section and located at one end of the connection means, the pad for engaging the patient'"'"'s wrist wherein the housing pivots about the pad. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for determining blood pressure of an artery having a pulse, the method comprising:
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applying pressure to the artery using cantilever action;
sensing pressure waveform data produced by the artery;
deriving a plurality of parameters from the pressure waveform data; and
determining a blood pressure value based upon the parameters.
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26. A method for measuring blood pressure of an artery using a non-invasive blood pressure measurement device, the method comprising:
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placing a U-shaped member of the blood pressure measurement device on a wrist of a patient to position a sensing surface over the artery;
pivoting the blood pressure measurement device about a fulcrum to apply a force to the artery;
sensing pressure waveform data produced by the artery; and
determining a blood pressure value based on the sensed pressure waveform data.
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Specification