Biostimulator transport system having valve bypass tool

Patent metadata

Field	Value
Publication number	US-11364364-B2
Application number	US-201916528264-A
Country	US
Kind code	B2
Filing date	Jul 31, 2019
Priority date	May 3, 2019
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

A valve bypass tool, and a biostimulator transport system having such a valve bypass tool, is described. The valve bypass tool includes an annular seal to seal against a protective sheath of the biostimulator transport system. The valve bypass tool is slidably mounted on the protective sheath and includes a bypass sheath to insert into an access introducer. The valve bypass tool can lock onto the access introducer by mating a locking tab of the valve bypass tool with a locking groove of the access introducer. The locking tab can have a decent that securely fastens the components to resist decoupling when the biostimulator transport system is advanced through the access introducer into a patient anatomy. Other embodiments are also described and claimed.

First claim

What is claimed is:

1. A biostimulator transport system, comprising:
a handle;
a deflectable catheter extending from the handle to a distal catheter end;
a protective sheath slidably mounted on the deflectable catheter, wherein the protective sheath includes an atraumatic distal end having an outer dimension; and
a valve bypass tool slidably mounted on the protective sheath proximal to the atraumatic distal end, wherein the valve bypass tool includes an annular seal in sliding contact with the protective sheath, a locking tab extending radially outward from a tool body, and wherein the valve bypass tool includes a minimum lumen dimension that is less than the outer dimension of the atraumatic distal end of the protective sheath.

2. The biostimulator transport system of claim 1 , wherein the locking tab includes a detent extending from a tab face.

3. The biostimulator transport system of claim 1 , wherein the valve bypass tool includes a tool cap mounted on the tool body, and wherein the annular seal is between the tool cap and the tool body such that a seal lumen of the annular seal is aligned with a cap lumen of the tool cap and a body lumen of the tool body.

4. The biostimulator transport system of claim 3 , wherein the cap lumen includes a minimum cap lumen dimension, and wherein the minimum cap lumen dimension is the minimum lumen dimension of the valve bypass tool.

5. The biostimulator transport system of claim 1 , wherein the valve bypass tool includes a bypass sheath having a tubular wall around a bypass lumen, and wherein the tool body is mounted on the tubular wall.

6. The biostimulator transport system of claim 5 , wherein the bypass sheath is metallic, wherein the tool body is polymeric, and wherein the tool body is overmolded onto the tubular wall.

7. The biostimulator transport system of claim 1 , wherein the valve bypass tool includes a push tab extending radially outward from the tool body to an outer tab face, and wherein a radial dimension between the tool body and the outer tab face is greater than a longitudinal dimension of the outer tab face.

8. The biostimulator transport system of claim 1 , wherein the biostimulator transport system is a biostimulator delivery system including a tether extending through the deflectable catheter.

9. The biostimulator transport system of claim 1 , wherein the biostimulator transport system is a biostimulator retrieval system including a snare extending through the deflectable catheter.

10. A valve bypass tool, comprising:
a tool body having a body lumen;
a tool cap mounted on the tool body and having a cap lumen;
an annular seal having a seal lumen aligned with the body lumen and the cap lumen;
a locking tab extending radially outward from the tool body; and
a bypass sheath having a tubular wall around a bypass lumen, wherein the bypass lumen is aligned with the body lumen, the seal lumen, and the cap lumen, and wherein the tool body is mounted on the tubular wall.

11. The valve bypass tool of claim 10 , wherein the locking tab includes a detent extending from a tab face.

12. The valve bypass tool of claim 10 , wherein the tool cap is welded to the tool body.

13. The valve bypass tool of claim 10 , wherein the cap lumen includes a minimum cap lumen dimension that is larger than a seal lumen dimension of the seal lumen.

14. The valve bypass tool of claim 10 , wherein the bypass sheath is metallic, wherein the tool body is polymeric, and wherein the tool body is overmolded onto the tubular wall.

15. The valve bypass tool of claim 14 further comprising a push tab extending radially outward from the tool body to an outer tab face, wherein a radial dimension between the tool body and the outer tab face is greater than a longitudinal dimension of the outer tab face.

16. A method, comprising:
inserting a bypass sheath of a valve bypass tool into a proximal opening of an introducer cap of an access introducer, wherein the valve bypass tool is slidably mounted on a protective sheath of a biostimulator transport system, and wherein the valve bypass tool includes an annular seal in sliding contact with the protective sheath; and
twisting the valve bypass tool relative to the access introducer such that a locking tab of the valve bypass tool engages the introducer cap.

17. The method of claim 16 , wherein inserting the bypass sheath into the proximal opening includes pushing on a push tab of the valve bypass tool.

18. The method of claim 16 , wherein the locking tab has a tab face in contact with a groove face of the introducer cap when the locking tab engages the introducer cap to lock the valve bypass tool to the access introducer.

19. The method of claim 18 , wherein the locking tab includes a detent extending from the tab face into a recess in the groove face.

Assignees

• Pacesetter Inc

Inventors

• Rickheim David
• Smith Scott M

Classifications

• G10L2015/223

  Execution procedure of a spoken command · CPC title

• G10L2015/088

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• G10L15/30

  Distributed recognition, e.g. in client-server systems, for mobile phones or network applications · CPC title

• G10L15/22

  Procedures used during a speech recognition process, e.g. man-machine dialogue · CPC title

• G10L15/08

  Speech classification or search · CPC title