Catheter device having a coupling device for a drive device

Patent metadata

Field	Value
Publication number	US-12042647-B2
Application number	US-202117404102-A
Country	US
Kind code	B2
Filing date	Aug 17, 2021
Priority date	Aug 6, 2009
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

Catheter device, having a hollow catheter in the catheter cavity of which a moveable shaft is guided, having a proximal coupling device, for detachable coupling of a drive device, the coupling device having a coupling cavity which is open towards the drive device and into which the shaft or an extension of the shaft protrudes with a connection element for mechanical coupling of a motor shaft, the coupling cavity having a germ barrier for reducing the pathogenicity of pathogenic substances or microorganisms.

First claim

The invention claimed is:

1. A catheter device comprising:
a catheter having a lumen, a proximal end, and a distal end;
a first housing having a proximal end and a distal end, the distal end of the housing being coupled to the proximal end of the catheter, and the first housing comprising:
a catheter cavity in communication with the lumen of the catheter;
a coupling cavity; and
a germicidal gel within the coupling cavity; and
a first seal between the catheter cavity and the coupling cavity, the first seal being configured to prevent the germicidal gel migrating from the coupling cavity to the catheter cavity;

a second housing configured to be releasably coupled to the first housing;
a motor arranged within the second housing, the motor having a motor shaft extending through a wall of the second housing; and
a drive shaft having a proximal end and a distal end, the proximal end of the drive shaft being configured to be releasably coupled to the motor shaft in the coupling cavity when the second housing is releasably coupled to the first housing, and the drive shaft extending at least from the coupling cavity, through the first seal, to the catheter cavity.

2. The catheter device of claim 1 , wherein the drive shaft extends at least partially into the lumen of the catheter.

3. The catheter device of claim 2 , wherein the drive shaft comprises a plurality of twisted strands.

4. The catheter device of claim 1 , wherein the distal end of the drive shaft is coupled within the catheter cavity to a proximal end of a second drive shaft, and wherein the second drive shaft extends at least partially into the lumen of the catheter.

5. The catheter device of claim 4 , wherein the second drive shaft comprises a plurality of twisted strands.

6. The catheter device of claim 1 , wherein the drive shaft is configured to be axially displaceable relative to the motor shaft while the drive shaft is releasably coupled to the motor shaft.

7. The catheter device of claim 1 , wherein the first housing or the second housing further comprises a second seal configured to prevent fluid from entering or escaping the coupling cavity when the second housing is releasable coupled to the first housing.

8. The catheter device of claim 1 , wherein the first housing further comprises a first opening.

9. The catheter device of claim 8 , further comprising a pump configured to pump a rinsing liquid into the catheter cavity through the first opening.

10. The catheter device of claim 9 , wherein the first housing further comprises a second opening, the second opening being configured to allow the rinsing liquid to exit the catheter cavity.

11. The catheter device of claim 10 , further comprising a counterflow sleeve coupled to the drive shaft, the counterflow sleeve having at least one blade configured to induce a first flow of the rinsing liquid out of the second opening of the first housing when the motor drives the drive shaft.

12. The catheter device of claim 11 , wherein the drive shaft extends at least partially into the lumen of the catheter, and wherein the drive shaft is further configured to induce a second flow of the rinsing liquid into the lumen of the catheter when the motor drives the drive shaft.

13. The catheter device of claim 11 , wherein the first seal is further configured to prevent the rinsing liquid migrating from the catheter cavity into the coupling cavity.

14. The catheter device of claim 9 , further comprising a counterflow sleeve coupled to the drive shaft, the counterflow sleeve having at least one blade configured to induce a first flow of the rinsing liquid away from the proximal end of the catheter when the motor drives the drive shaft.

15. The catheter device of claim 14 , wherein the drive shaft extends at least partially into the lumen of the catheter, and wherein the drive shaft is further configured to induce a second flow of the rinsing liquid into the lumen of the catheter when the motor drives the drive shaft.

16. The catheter device of claim 14 , wherein the first seal is further configured to prevent the rinsing liquid migrating from the catheter cavity into the coupling cavity.

17. The catheter device of claim 1 , wherein the first housing further comprises a radiation window, the radiation window being permeable to ultraviolet radiation and impermeable to liquid.

18. The catheter device of claim 17 , further comprising a radiation source positioned outside the coupling cavity and adjacent to the radiation window.

19. The catheter device of claim 18 , wherein the radiation source includes an ultraviolet (UV) diode.

20. The catheter device of claim 18 , wherein the radiation source is configured to reduce pathogenicity of pathogenic substances or microorganisms within the coupling cavity.

Assignees

• Ecp Entw Mbh

Inventors

• Simon Cornelia
• Honselmann Julia
• Baumgaertel Jens
• Liebing Reiner

Classifications

• A61M60/13

  by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system · CPC title

• A61M60/216

  including a rotating member acting on the blood, e.g. impeller · CPC title

• A61M60/829

  having a purge fluid supply · CPC title

• A61M60/419

  the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets · CPC title

• A61M60/148

  in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices · CPC title