Device for attaching a heart support system to an insertion device, and method for producing same

Patent metadata

Field	Value
Publication number	US-12576263-B2
Application number	US-201917057045-A
Country	US
Kind code	B2
Filing date	May 30, 2019
Priority date	May 30, 2018
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

The invention relates to an apparatus ( 100 ) for attaching a cardiac support system to an insertion device, wherein the apparatus ( 100 ) is shaped to releasably couple the cardiac support system to the insertion device. The apparatus ( 100 ) has at least one main body ( 105 ), in particular a tubular main body ( 115 ), and a clamping device ( 110 ) with at least one clamping wing ( 115 ). The clamping device ( 110 ) is designed to mechanically couple the cardiac support system to the insertion device in an attachment state and to release the cardiac support system from the insertion device by displacing and/or flipping open the at least one clamping wing ( 115 ) in a release state.

First claim

The invention claimed is:

1 . An apparatus configured to be releasably coupled to a cardiac support system, the apparatus comprising:
a tube-shaped body having a first end, a second end opposite the first end, and a longitudinal axis extending between the first end and the second end; and at least one clamping wing extending from the second end of the tube-shaped body in a direction having at least an axial component directed away from the first end; wherein:
the at least one clamping wing is flexible or bendable relative to the tube-shaped body between a first position corresponding to a release state and a second position corresponding to an attachment state;
the at least one clamping wing extends obliquely outward from the second end of the tube-shaped body relative to the longitudinal axis in the first position;
the at least one clamping wing extends axially from the second end of the tube-shaped body relative to the longitudinal axis in the second position; and
the apparatus is configured to be releasably coupled to the cardiac support system by applying a radial force onto the cardiac support system with the at least one clamping wing when the at least one clamping wing is in the attachment state.

2 . The apparatus of claim 1 , wherein the at least one clamping wing comprises a shape memory polymer or a shape memory alloy.

3 . The apparatus of claim 1 , wherein the at least one clamping wing comprises at least one protrusion configured to engage an end portion of the cardiac support system in a form-locking manner.

4 . The apparatus of claim 1 , wherein the at least one clamping wing comprises at least two clamping wings.

5 . The apparatus of claim 4 , wherein the at least two clamping wings are evenly spaced annularly about the second end of the tube-shaped body.

6 . The apparatus of claim 1 , further comprising a sleeve configured to at least partially enclose the apparatus when the at least one clamping wing is in the second position.

7 . The apparatus of claim 6 , wherein the at least one clamping wing is configured to transition between the attachment state and the release state when the sleeve is displaced.

8 . The apparatus of claim 1 , wherein the apparatus further comprises a web, wherein the web is configured to form a neck between the tube-shaped body and the at least one clamping wing.

9 . The apparatus of claim 8 , wherein a width of the web is smaller than a width of the at least one clamping wing.

10 . The apparatus of claim 1 , wherein the tube-shaped body and the at least one clamping wing are formed of one piece.

11 . The apparatus of claim 1 , wherein the tube-shaped body comprises a hollow cylinder configured to at least partially receive a flexible hose.

12 . The apparatus of claim 1 , wherein the tube-shaped body comprises at least one stiffening recess, wherein the at least one stiffening recess is configured to change a stiffness of the tube-shaped body.

13 . The apparatus of claim 1 , wherein the tube-shaped body comprises at least one attachment recess on the first end of the tube-shaped body opposite the second end.

14 . The apparatus of claim 1 , wherein the apparatus has a length of less than 50 millimeters.

15 . The apparatus of claim 1 , wherein the at least one clamping wing comprises at least one recess for receiving an end portion of the cardiac support system to mechanically couple the cardiac support system to the apparatus.

16 . The apparatus of claim 1 , wherein the cardiac support system is coaxial with the tube-shaped body in the attachment state.

17 . The apparatus of claim 1 , further comprising a sleeve configured to translate axially along a longitudinal axis of the apparatus, wherein the sleeve is configured to at least partially enclose the at least one clamping wing in the attachment state.

18 . The apparatus of claim 17 , wherein translating the sleeve proximally transitions the apparatus to the release state.

19 . The apparatus of claim 1 , wherein the at least one clamping wing is pretensioned to the second position.

20 . The apparatus of claim 1 , wherein the at least one clamping wing is configured to transition between the first position and the second position by flipping the at least one clamping wing relative to the tube-shaped body.

Assignees

• Kardion Gmbh

Inventors

• Baumbach Hardy
• Schellenberg Inga
• Minzenmay David

Classifications

• A61M60/859

  Connections therefor · CPC title

• A61M60/865

  Devices for guiding or inserting pumps or pumping devices into the patient's body · CPC title

• A61M60/857 Primary

  Implantable blood tubes · CPC title

• A61M60/178

  drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices · CPC title

• A61M60/135

  inside a blood vessel, e.g. using grafting · CPC title