# US 2023/0410690 A1 · Vascular model

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2023/0410690 A1
- Document ID: US20230410690A1
- Status: Published application
- Kind: A1
- Application number: 18/240,794
- Filed: 2023-08-31
- Published: 2023-12-21
- Earliest claimed: 2021-03-23
- Assignees: Asahi Intecc Co., Ltd.
- Applicants: Asahi Intecc Co., Ltd.
- Inventors: Kazu TAKEMURA
- Web page: https://patentgrep.com/patent/US20230410690A1

## CPC

- G09B 23/303: {specially adapted to simulate circulation of bodily fluids}
- G09B 23/285: {for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas}
- G09B 23/30: Anatomical models {(G09B23/281 - G09B23/288 take precedence)}
- G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)

## Abstract

A vascular model includes a hollow tubular first tube body, and a hollow tubular second tube body that covers an inner peripheral surface of the first tube body. The first tube body has an acoustic impedance higher than an acoustic impedance of the second tube body.

## Claims

### Claim 1

A vascular model, comprising:
a first tube body; and
a second tube body that covers an inner peripheral surface of the first tube body,
wherein the first tube body has an acoustic impedance that is higher than an acoustic impedance of the second tube body.

### Claim 2 (depends on 1)

The vascular model according to claim 1, wherein:
each of the first tube body and the second tube body comprises:
a polymer material, and
fine particles having an acoustic impedance that is higher than an acoustic impedance of the polymer material, and
a fine particle concentration in the first tube body is higher than a fine particle concentration in the second tube body.

### Claim 3 (depends on 1)

The vascular model according to claim 1, wherein:
each of the first tube body and the second tube body comprises:
a polymer material, and
fine particles having an acoustic impedance higher than an acoustic impedance of the polymer material,
a type of the fine particles contained in the first tube body differs from a type of the fine particles contained in the second tube body, and
the fine particles contained in the first tube body have a hardness that is higher than a hardness of the fine particles contained in the second tube body.

### Claim 4 (depends on 2)

The vascular model according to claim 2, wherein particle diameters of the fine particles contained in the first tube body and particle diameters of the fine particles contained in the second tube body are within a range of 0.1 μm or larger and 500 μm or smaller.

### Claim 5 (depends on 1)

The vascular model according to claim 1, wherein:
each of the first tube body and the second tube body is made of a polymer material, and
the polymer material constituting the first tube body has an acoustic impedance that is higher than an acoustic impedance of the polymer material constituting the second tube body.

### Claim 6 (depends on 1)

The vascular model according to claim 1, wherein
each of the first tube body and the second tube body is made of a polymer material, and
the first tube body has a hardness that is higher than a hardness of the second tube body.

### Claim 7 (depends on 1)

The vascular model according to claim 1, further comprising:
a third tube body that covers an inner peripheral surface of the second tube body,
wherein the third tube body has an acoustic impedance that is lower than or equal to the acoustic impedance of the first tube body and higher than the acoustic impedance of the second tube body.

### Claim 8 (depends on 2)

The vascular model according to claim 2, wherein:
a type of the fine particles contained in the first tube body differs from a type of the fine particles contained in the second tube body, and
the fine particles contained in the first tube body have a hardness that is higher than a hardness of the fine particles contained in the second tube body.

### Claim 9 (depends on 8)

The vascular model according to claim 8, wherein
particle diameters of the fine particles contained in the first tube body and particle diameters of the fine particles contained in the second tube body are within a range of 0.1 μm or larger and 500 μm or smaller.

### Claim 10 (depends on 2)

The vascular model according to claim 2, wherein
the polymer material constituting the first tube body has an acoustic impedance that is higher than an acoustic impedance of the polymer material constituting the second tube body.

### Claim 11 (depends on 2)

The vascular model according to claim 2, wherein
the first tube body has a hardness that is higher than a hardness of the second tube body.

### Claim 12 (depends on 2)

The vascular model according to claim 2, further comprising:
a third tube body that covers an inner peripheral surface of the second tube body,
wherein the third tube body has an acoustic impedance that is lower than or equal to the acoustic impedance of the first tube body and higher than the acoustic impedance of the second tube body.

### Claim 13 (depends on 3)

The vascular model according to claim 3, wherein
the polymer material constituting the first tube body has an acoustic impedance that is higher than an acoustic impedance of the polymer material constituting the second tube body.

### Claim 14 (depends on 3)

The vascular model according to claim 3, wherein
the first tube body has a hardness that is higher than a hardness of the second tube body.

### Claim 15 (depends on 3)

The vascular model according to claim 3, further comprising:
a third tube body that covers an inner peripheral surface of the second tube body,
wherein the third tube body has an acoustic impedance that is lower than or equal to the acoustic impedance of the first tube body and higher than the acoustic impedance of the second tube body.

### Claim 16 (depends on 4)

The vascular model according to claim 4, wherein
the polymer material constituting the first tube body has an acoustic impedance that is higher than an acoustic impedance of the polymer material constituting the second tube body.

### Claim 17 (depends on 4)

The vascular model according to claim 4, wherein
the first tube body has a hardness that is higher than a hardness of the second tube body.

### Claim 18 (depends on 4)

The vascular model according to claim 4, further comprising:
a third tube body that covers an inner peripheral surface of the second tube body,
wherein the third tube body has an acoustic impedance that is lower than or equal to the acoustic impedance of the first tube body and higher than the acoustic impedance of the second tube body.

### Claim 19 (depends on 5)

The vascular model according to claim 5, wherein
the first tube body has a hardness that is higher than a hardness of the second tube body.

### Claim 20 (depends on 5)

The vascular model according to claim 5, further comprising:
a third tube body that covers an inner peripheral surface of the second tube body,
wherein the third tube body has an acoustic impedance that is lower than or equal to the acoustic impedance of the first tube body and higher than the acoustic impedance of the second tube body.