Selectable tip delivery system and method

Patent metadata

Field	Value
Publication number	US-11083609-B2
Application number	US-201815960613-A
Country	US
Kind code	B2
Filing date	Apr 24, 2018
Priority date	Apr 24, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A delivery system for delivering a prosthesis includes a catheter and a selectable tip kit having a plurality of tips. Each tip is uniquely shaped, i.e., has a particular shape different than the shape of all the other tips, and each tip is better suited for some procedures than for others. One of the tips is selected by the physician as being particularly well suited for the procedure to be performed. The selected tip is non-removably attached to the catheter and the remaining tips are discarded. This allows the delivery system to be customizable to each procedure, putting the physician in control of the case. This provides a case specific delivery system for the physicians to use and at a very low expense and with minimal additional engineering.

First claim

What is claimed is:

1. A delivery system comprising:
a catheter comprising:
a tip attachment boss comprising:
a shaft;
a flange; and
a cylindrical inner member opening extending through the shaft and the flange; and

an inner member comprising a tube within the cylindrical inner member opening;

a selectable tip kit comprising a plurality of uniquely shaped tips, each tip includes a snap, each tip being configured to non-removably snap onto the tip attachment boss and including a guide wire opening extending through the tip, wherein the snap is configured to stretch around the flange and non-removably snap around the shaft; and
a guidewire configured to extend through the guide wire opening.

2. The delivery system of claim 1 wherein the selectable tip kit comprises a container containing the tips.

3. The delivery system of claim 1 wherein the tips comprise a first tip and a second tip, the first tip being longer than the second tip.

4. The delivery system of claim 1 wherein the tips comprise a first tip and a second tip, the first tip being thinner than the second tip.

5. The delivery system of claim 1 wherein the snap is configured to non-removably snap onto the tip attachment boss to mount the tip to the catheter.

6. The delivery system of claim 1 wherein the snap in each tip is identical.

7. The delivery system of claim 1 wherein the catheter comprises:
a sheath; and
a prosthesis within the sheath.

8. The delivery system of claim 1 wherein the tip attachment boss is at a distal end of the catheter.

9. The delivery system of claim 1 wherein the catheter further comprises:
an attachment boss sleeve including a cylindrical hollow tubular body and the tip attachment boss;
a spindle; and
a prosthesis comprising a proximal end held between a hollow cylinder of the cylindrical hollow tubular body and the spindle.

10. The delivery system of claim 9 wherein the cylindrical hollow tubular body further comprises an end cap at a distal end of the hollow cylinder, the shaft extending from the end cap to the flange.

11. A method comprising:
supporting a tip attachment boss on an inner member, the inner member comprising a tube and a stop;
providing a delivery system comprising a catheter and a selectable tip kit comprising a plurality of uniquely shaped tips, each of the tips including a guide wire opening extending through the tip, wherein the catheter comprises the inner member and the tip attachment boss, the tip attachment boss comprising a shaft and a flange, the tube extending through the shaft and the flange and the stop abutting the flange;
selecting one tip of the tips; and
non-removably attaching the one tip to the catheter comprising stretching a snap of the tip around the flange and non-removably snapping the snap around the shaft.

12. The method of claim 11 wherein the non-removably attaching the one tip comprises snapping the one tip to an attachment boss sleeve of the catheter.

13. The method of claim 12 further comprising:
restraining a prosthesis within a sheath of the catheter;
holding a proximal end of the prosthesis between a hollow cylinder of a cylindrical hollow tubular body of the attachment boss sleeve and a spindle;
retracting the sheath; and
moving the spindle out of the hollow cylinder to release the proximal end of the prosthesis.

14. The method of claim 11 wherein the tips are a one-time use.

15. The method of claim 14 further comprising discarding all the tips except the one tip attached to the catheter.

16. The method of claim 11 further comprising tracking the tip along a guidewire extending through the guidewire opening.

17. The method of claim 11 wherein the non-removably attaching further comprises snapping a stop opening of the one tip around the stop.

18. A delivery system comprising:
a catheter comprising:
a tip attachment boss comprising:
a shaft;
a flange; and
a cylindrical inner member opening extending through the shaft and the flange; and

an inner member comprising a tube within the cylindrical inner member opening, the inner member further comprises a stop coupled to a distal end of the tube; and

a selectable tip kit comprising a plurality of uniquely shaped tips, each tip includes a snap, each tip being configured to non-removably snap onto the tip attachment boss and including a guide wire opening extending through the tip, wherein the snap is configured to stretch around the flange and non-removably snap around the shaft, wherein each tip includes a stop opening configured to fit around the stop.

Assignees

• Medtronic Vascular Inc

Inventors

• Malsbary Todd
• Rowe Mark

Classifications

• A61F2/95

  Instruments specially adapted for placement or removal of stents or stent-grafts · CPC title

• A61F2250/006

  modular · CPC title

• A61M25/002

  Packages specially adapted therefor (combined with means for introducing catheters, e.g. dispensers, A61M25/0113); catheter kit packages (for surgical articles A61B50/30) · CPC title

• A61F2/966 Primary

  with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod · CPC title

• A61F2250/001

  for adjusting a diameter · CPC title