Medical implant and system for intravascular implantation

Patent metadata

Field	Value
Publication number	US-2018140206-A1
Application number	US-201715816065-A
Country	US
Kind code	A1
Filing date	Nov 17, 2017
Priority date	Nov 23, 2016
Publication date	May 24, 2018
Grant date	—

Abstract

A medical implant for intravascular implantation has an implant housing and at least a first and a second conveying element. The first and the second conveying elements are arranged on the implant housing in one plane. The first conveying element is mounted rotatably about a first rotation axis and the second conveying element is mounted rotatably about a second rotation axis.

First claim

1 . A medical implant for intravascular implantation, comprising:
an implant housing; and at least a first conveying element and a second conveying element, said first conveying element and said second conveying element disposed on said implant housing in one plane, said first conveying element is mounted rotatably about a first rotation axis and said second conveying element is mounted rotatably about a second rotation axis.

2 . The medical implant according to claim 1 , wherein:
said implant housing has an elongate form with a proximal end and a distal end; said first conveying element is disposed close to said proximal end; and said second conveying element is disposed close to said distal end.

3 . The medical implant according to claim 1 , wherein said first conveying element and the second conveying element are disposed on at least one side outer surface of said implant housing.

4 . The medical implant according to claim 1 , wherein:
said first rotation axis and said second rotation axis are oriented parallel to one another; and/or said first rotation axis and said second rotation axis are oriented perpendicular to a longitudinal axis of said implant housing; and/or said first rotation axis and said second rotation axis are oriented perpendicular to a plane in which said first conveying element and said second conveying element are disposed.

5 . The medical implant according to claim 1 , wherein said first and the second conveying elements are configured to interact with a guide wire.

6 . The medical implant according to claim 5 , wherein said first and second conveying elements each have a holder member, and said holder member is configured to receive the guide wire.

7 . The medical implant according to claim 6 , wherein said holder member has a form of a ring, an eyelet, a loop or a hook.

8 . The medical implant according to claim 1 , further comprising a fixing structure having at least two holder units, said fixing structure can adopt an expanded state and a collapsed state, and said fixing structure in the expanded state is configured to fix the medical implant at an implantation site.

9 . The medical implant according to claim 8 , wherein said holder units of said fixing structure are configured to interact with a guide wire, so that said fixing structure is in the collapsed state.

10 . The medical implant according to claim 8 , wherein said fixing structure contains at least two limbs made of a flexible material, said limbs are closed in the collapsed state, and are folded out from one another in the expanded state, and wherein each of said limbs has a meandering and/or zigzagging portion.

11 . The medical implant according to claim 8 , further comprising at least one mechanical spring and said fixing structure is coupled to said at least one mechanical spring, said mechanical spring is tensioned when said fixing structure is in the collapsed state, and said mechanical spring is in a rest position when said fixing structure is in the expanded state.

12 . The medical implant according to claim 8 , wherein said fixing structure is made at least in part of a shape-memory material.

13 . The medical implant according to claim 8 , wherein said holder unit has a form of a ring, an eyelet, a loop or a hook.

14 . The medical implant according to claim 8 , wherein said fixing structure is made at least in part of nitinol.

15 . A system for intravascular implantation of a medical implant, the system comprising:
a flexible guide wire; a slider unit having a flexible shaft with a lumen, wherein the medical implant, said flexible guide wire and said slider unit are disposed such that said flexible guide wire interacts with first and second conveying elements of the medical implant, wherein the first and second conveying elements each have a holder member, which holder members receive said flexible guide wire; and said flexible guide wire is disposed at least in part in said lumen of said flexible shaft of said slider unit, said slider unit is configured to push and/or to pull the medical implant along said flexible guide wire.

16 . The system according to claim 15 , wherein:
the medical implant further has a fixing structure with at least two holder units, the fixing structure can adopt an expanded state and a collapsed state, the holder units are configured to interact with said flexible guide wire in that said flexible guide wire is received by the holder units, so that the fixing structure is in the collapsed state, and wherein the fixing structure is configured to transition into the expanded state as soon as said flexible guide wire ceases to interact with the holder units.

17 . A system for intravascular implantation, comprising:
a medical implant having first and second conveying elements, said first and second conveying elements each having a holder member; a flexible guide wire; a slider unit having a flexible shaft with a lumen, wherein said medical implant, said flexible guide wire and said slider unit are disposed such that said flexible guide wire interacts with said first and second conveying elements of said medical implant; said holder member receives said flexible guide wire; and said flexible guide wire is disposed at least in part in said lumen of said flexible shaft of said slider unit, said slider unit is configured to push and/or to pull said medical implant along said flexible guide wire.

18 . The system according to claim 17 , wherein:
said medical implant further has a fixing structure with at least two holder units, said fixing structure can adopt an expanded state and a collapsed state, said holder units are configured to interact with said flexible guide wire in that said flexible guide wire is received by said holder units, so that said fixing structure is in the collapsed state, and wherein said fixing structure is configured to transition into the expanded state as soon as said flexible guide wire ceases to interact with said holder units.

Assignees

• Biotronik Se & Co Kg

Inventors

• Bitzer Andreas

Classifications

• A61M25/09

  Guide wires · CPC title

• A61B5/0215 Primary

  by means inserted into the body · CPC title

• A61N1/37512

  Pacemakers · CPC title

• A61N1/375

  Constructional arrangements, e.g. casings · CPC title

• A61N1/3968

  Constructional arrangements, e.g. casings (A61N1/375 takes precedence) · CPC title