Apparatus and methods for detecting stroke in a patient
a technology of patient and apparatus, applied in the field of apparatus and methods for detecting stroke in a patient, can solve the problems of brain cells that cannot make enough energy and will eventually stop working, cells die, brain cells eventually die,
Pending Publication Date: 2022-02-03
UMAN SENSE AB
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AI Technical Summary
Benefits of technology
The present invention aims to solve problems related to communication between devices and networks. The technical effect of the invention is to improve the efficiency and reliability of data transfer between different devices and networks.
Problems solved by technology
A stroke is a medical condition in which poor blood flow to the brain results in cell death.
Once the oxygen and nutrients are cut off by the blockage, the brain cells cannot make enough energy and will eventually stop working.
If the blockage is not cleared, the brain cells will eventually die.
In both cases, the blood spreads into the surrounding brain tissue causing increased pressure, limiting the operating of the brain cells and eventually damaging the brain tissue.
This change can be observed through physical symptoms such as an inability to move or feel on one side of the body, problems communicating, and loss of vision.
Historically, a stroke was very difficult to treat.
Although the patient's symptoms might be recognised and diagnosed as a stroke, limited treatment was available.
However, problems associated with the above systems include problems related to producing a reliable signal indicative of a patient stroke without trigger too many false positives.
Method used
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[0052]FIG. 1 is schematic diagram showing a user 100 with a stroke detection apparatus 102 comprising a plurality of wearable sensors 200a, 200b. In some examples, the user 100 is a patient 100. In some examples, the patient 100 may be at particular risk of transient ischemic attack (TIA) or other types of stroke such as ischemic stroke, haemorrhagic stroke, aneurysms, arteriovenous malformations (AVM), cryptogenic stroke, and / or brain stem stroke. Hereinafter, the term “stroke” will be used. In other examples, the user is not a patient, but uses the stroke detection apparatus 102 as a precaution. The term “user” and “patient” may be used interchangeably however for the purposes of clarity, the term “patient” will be used hereinafter.
[0053]In FIG. 1, wearable sensors 200a, 200b are respectively attached to the patient's 100 right wrist 104a and left wrist 104b. The reference number 200 generally refers to the wearable sensor, but for the purposes of clarity the reference numbers 200...
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A stroke detection apparatus comprises a data processing device comprising a processor and at least one wearable sensor configured to generate movement data of at least a portion of the user's body. The data processing device is configured to process first movement data for a first movement and second movement data for a second movement received from the at least one wearable sensor. Wherein the data processing device is configured to determine asymmetry of user's movement based on the first and second movement data and generate a stroke detection signal in dependence on the determined asymmetry.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is the National Phase under 35 U.S.C. § 371 of PCT International Application No. PCT / SE2019 / 051319, filed on Dec. 19, 2019, which claims priority to Great Britain Patent Application No. 1820892.6, filed Dec. 20, 2018, and Swedish Patent Application No. 1930370-0, filed Nov. 12, 2019, the entire contents of each of which are incorporated herein by reference.BACKGROUNDTechnical Field[0002]The present invention relates to apparatus and methods for detecting stroke in a patient.Description of Related Art[0003]A stroke is a medical condition in which poor blood flow to the brain results in cell death. There are two main causes for stroke. An ischemic stroke is typically caused by a lack of blood flow to parts of the brain resulting from a blockage in an artery that supplies blood to the brain. The blood normally delivers oxygen and nutrients to the brain. Once the oxygen and nutrients are cut off by the blockage, the brain cel...
Claims
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IPC IPC(8): A61B5/11A61B5/00
CPCA61B5/11A61B5/681A61B5/747A61B5/4094A61B5/6828A61B5/7275A61B5/6824A61B5/4076A61B2562/0219A61B5/746A61B5/4064A61B5/7282A61B5/1124G16H40/67A61B5/162A61B5/7475
Inventor WASSELIUS, JOHANERICSON, PETTER
Owner UMAN SENSE AB