# US 11,304,614 B2 · Bag-shaped structure, blood pressure monitor cuff, and blood pressure monitor

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- Number: US 11,304,614 B2
- Document ID: US11304614B2
- Status: Granted
- Kind: B2
- Application number: 16/348,998
- Filed: 2017-12-26
- Published: 2019-08-29
- Granted: 2022-04-19
- Earliest claimed: 2016-12-27
- Assignees: OMRON Corporation; Omron Healthcare Co., Ltd.
- Applicants: Omron Corporation; Omron Healthcare Co., Ltd.
- Inventors: Kazuyoshi Nishikawa; Shuhei Ojiro
- Web page: https://patentgrep.com/patent/US11304614B2

## CPC

- A61B 5/02241: {of small dimensions, e.g. adapted to fingers}
- B32B 27/34: comprising polyamides
- A61B 5/022: by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B 5/02233: {Occluders specially adapted therefor (tourniquets A61B17/132)}
- A61B 5/0225: the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
- B32B 1/00: Layered products having a non-planar shape
- B32B 7/022: Mechanical properties
- B32B 7/08: by mechanical means
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/08: of synthetic resin
- B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers}
- B32B 27/302: {comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers}
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/40: comprising polyurethanes
- A61B 5/6824: {Arm or wrist}
- B32B 2250/24: All layers being polymeric
- B32B 2307/536: Hardness
- B32B 2307/732: Dimensional properties
- B32B 2457/00: Electrical equipment
- B32B 2535/00: Medical equipment, e.g. bandage, prostheses or catheter
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

A bag-shaped structure excellent in vascular compressibility and creep resistance, and capable of reducing the processing cost, a blood pressure monitor cuff, and a blood pressure monitor is provided. A bag-shaped structure includes a first sheet member including a layer formed of a thermoplastic elastomer; and a second sheet member including a plurality of layers formed of a plurality of types of thermoplastic elastomers having different levels of hardness, wherein the second sheet member is joined with the first sheet member, and a layer, that is included in the plurality of layers of the second sheet member and that is in contact with a living body, has a Shore A hardness higher than a Shore A hardness of at least one of the other layers of the second sheet member.

## Claims

### Claim 1

A bag-shaped structure comprising:
a first sheet member including a layer formed of a thermoplastic elastomer; and
a second sheet member including a plurality of layers formed of a plurality of types of thermoplastic elastomers having different levels of hardness, wherein
the second sheet member is joined with the first sheet member,
a layer that is included in the plurality of layers of the second sheet member, and that is in contact with a living body, has a Shore A hardness higher than a Shore A hardness of at least one of the other layers of the second sheet member; and
wherein the second sheet includes a first layer that is in contact with the living body, a second layer that is in contact with the first sheet member, and a third layer that is included between the first layer and the second layer, the third layer having a Shore A hardness lower than a Shore A hardness of the first and second layers.

### Claim 2 (depends on 1)

The bag-shaped structure according to claim 1, wherein
the first layer and the second layer are formed to have the same thickness, and
the second sheet member is configured to have a layer composition ratio T1:T2:T1 ranging between 1:2:1 and 1:20:1, where T1 represents a thickness of each of the first layer and the second layer, and T2 represents a thickness of the third layer.

### Claim 3 (depends on 1)

The bag-shaped structure according to claim 1, wherein
the second sheet member is configured in such a manner that the first layer and the second layer are formed of a thermoplastic elastomer having a Shore A hardness of 70 or higher, and the third layer is formed of a thermoplastic elastomer having a Shore A hardness of 65 or lower.

### Claim 4 (depends on 1)

The bag-shaped structure according to claim 1, wherein
the thermoplastic elastomer is formed of a thermoplastic polyurethane resin.