Monitoring device and monitoring device kit

Patent metadata

Field	Value
Publication number	US-2016000345-A1
Application number	US-201514857867-A
Country	US
Kind code	A1
Filing date	Sep 18, 2015
Priority date	Apr 1, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A monitoring device includes an expansion body that is delivered into a vessel, and that expands at a predetermined position, and an electrode that is attached to the expansion body, and that detects neural activities of a nerve located outside the vessel by coming into contact with an inner wall of the vessel when the expansion body expands.

First claim

What is claimed is:

1 . A monitoring device comprising:
an expansion body that is configured to be delivered into a vessel and to expand at a predetermined position; and an electrode that is attached to the expansion body, and that is configured to detect neural activities of a nerve located outside the vessel by coming into contact with an inner wall of the vessel when the expansion body expands.

2 . The monitoring device according to claim 1 ,
wherein the electrode is disposed at multiple locations, and the multiple electrodes come into contact with the inner wall of the vessel at mutually different positions in a circumferential direction of the vessel.

3 . The monitoring device according to claim 2 , further comprising:
an identification member that can identify each of the multiple electrodes.

4 . The monitoring device according to claim 1 ,
wherein the expansion body partitions a hollow portion through which a body fluid can pass.

5 . The monitoring device according to claim 1 ,
wherein the expansion body is a stent, and a hook member is disposed in one end portion of the stent.

6 . The monitoring device according to claim 5 ,
wherein the stent includes a stent body which is configured to have a frame structure body, and wherein the stent body includes a connection portion to which the hook member is attached.

7 . The monitoring device according to claim 2 ,
wherein the expansion body is a stent, and a hook member is disposed in one end portion of the stent.

8 . The monitoring device according to claim 7 ,
wherein the stent includes a stent body which is configured to have a frame structure body, and wherein the stent body includes a connection portion to which the hook member is attached.

9 . The monitoring device according to claim 3 ,
wherein the expansion body is a stent, and a hook member is disposed in one end portion of the stent.

10 . The monitoring device according to claim 9 ,
wherein the stent includes a stent body which is configured to have a frame structure body, and wherein the stent body includes a connection portion to which the hook member is attached.

11 . The monitoring device according to claim 4 ,
wherein the expansion body is a stent, and a hook member is disposed in one end portion of the stent.

12 . The monitoring device according to claim 11 ,
wherein the stent includes a stent body which is configured to have a frame structure body, and wherein the stent body includes a connection portion to which the hook member is attached.

13 . The monitoring device according to claim 1 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

14 . The monitoring device according to claim 2 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

15 . The monitoring device according to claim 3 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

16 . The monitoring device according to claim 4 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

17 . The monitoring device according to claim 5 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

18 . The monitoring device according to claim 6 ,
wherein the electrode includes an elastically deformable projection portion which is attached to the expansion body and a detecting element which is attached to a distal end of the projection portion, and wherein in a state where the expansion body expands, the projection portion is elastically deformed, and the detecting element is pressed against the inner wall of the vessel.

19 . A monitoring device kit comprising:
the monitoring device according to claim 1 ; and a delivery member that accommodates the expansion body in a state where the maximum length of the expansion body in a radial direction of the vessel is shorter than the maximum length in a state where the expansion body expands at the predetermined position, and that can deliver the expansion body to the predetermined position.

20 . A method of monitoring a nerve located outside a vessel, comprising:
delivering an expansion body to a predetermined position within the vessel, said expansion body having an electrode attached thereto; expanding the expansion body at the predetermined positioned within the vessel, thereby causing the electrode to come into contact with an inner wall of the vessel; and detecting neural activities of the nerve using the electrode.

Assignees

• Terumo Corp

Inventors

• Kobayashi Risato
• Karino Wataru
• HIRAHARA Ichirou
• Kobayashi Junichi

Classifications

• A61B5/388

  Nerve conduction study, e.g. detecting action potential of peripheral nerves · CPC title

• A61B5/4848 Primary

  Monitoring or testing the effects of treatment, e.g. of medication · CPC title

• A61B5/04001 Primary

  Human Necessities · mapped topic

• A61B5/6862 Primary

  Stents · CPC title

• A61B5/24

  Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof · CPC title