EP-4739224-A1 - DELIVERY DEVICE FOR OCCLUSIVE IMPLANTS

Abstract

Delivery devices for an occlusive implant and method for making and using delivery devices are disclosed. An example delivery device may include a delivery sheath having a proximal region and a laser cut distal tip region. A reinforcing member may extend along the proximal region. The laser cut distal tip region may have one or more laser cuts formed therein that form a patterned distal section. The patterned distal section may be configured to shift between a delivery configuration and an expanded configuration. A core member may be slidably disposed within the delivery sheath. An occlusive implant may be releasably coupled to the core member.

Inventors

• ROGERS, CARLY
• ESKANDER, Sara Reda
• VIOLA, DANIEL JAMES
• NELSON, Mitchell
• Onushko, David John

Assignees

• Boston Scientific Scimed, Inc.

Dates

Publication Date

20260513

Application Date

20240815

Claims (15)

1. 1. A delivery device for an occlusive implant, the delivery device comprising: a delivery sheath having a proximal region and a laser cut distal tip region; a reinforcing member extending along the proximal region; wherein the laser cut distal tip region has one or more laser cuts formed therein that form a patterned distal section, the patterned distal section being configured to shift between a delivery configuration and an expanded configuration; a core member slidably disposed within the delivery sheath; and an occlusive implant releasably coupled to the core member.
2. 2. The delivery device of claim 1, wherein at least some of the one or more laser cuts go completely through a wall surface of the laser cut distal tip region.
3. 3. The delivery device of any one of claims 1-2, wherein at least some of the one or more laser cuts go only partially through a wall surface of the laser cut distal tip region.
4. 4. The delivery device of any one of claims 1-3, wherein the one or more laser cuts all extend the same distance proximally along the laser cut distal tip region.
5. 5. The delivery device of any one of claims 1-3, wherein at least some of the one or more laser cuts extend a different distance proximally along the laser cut distal tip region.
6. 6. The delivery device of any one of claims 1-5, wherein the patterned distal section includes a plurality of rounded projections.
7. 7. The delivery device of any one of claims 1-6, wherein the patterned distal section includes a plurality of pointed projections.
8. 8. The delivery device of any one of claims 1-7, wherein the patterned distal section includes axially-extending grooves.
9. 9. The delivery device of any one of claims 1-8, wherein the patterned distal section includes circumferentially-extending grooves.
10. 10. The delivery device of any one of claims 1-9, wherein the patterned distal section includes overlapping grooves.
11. 11. A delivery device for an occlusive implant, the delivery device comprising: a delivery sheath having a proximal region and a distal tip region; wherein the distal tip region includes a patterned distal section; wherein the patterned distal section is configured to allow the distal tip region to shift between a delivery configuration and an expanded configuration; and a proximal reinforcing member disposed along the proximal region.
12. 12. The delivery device of claim 11, wherein the patterned distal section includes laser cuts that go completely through a wall surface of the distal tip region.
13. 13. The delivery device of claim 11, wherein the patterned distal section includes laser cuts that go only partially through a wall surface of the distal tip region.
14. 14. The delivery device of any one of claims 11-13, wherein the patterned distal section includes laser cuts that all extend the same distance proximally along the distal tip region.
15. 15. The delivery device of any one of claims 11-13, wherein the patterned distal section includes laser cuts that extend a differing distance proximally along the distal tip region.

Description

DELIVERY DEVICE FOR OCCLUSIVE IMPLANTS CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Patent Application Serial No. 63/533,025, filed August 16, 2023, which is incorporated herein by reference. TECHNICAL FIELD [0002] The present disclosure pertains to medical devices, and methods for manufacturing medical devices. More particularly, the present disclosure pertains to delivery devices for occlusive implants. BACKGROUND [0003] A wide variety of medical devices have been developed for medical use, for example, intravascular use. Some of these devices include guidewires, catheters, and the like. These devices are manufactured by any one of a variety of different manufacturing methods and may be used according to any one of a variety of methods. Of the known medical devices and methods, each has certain advantages and disadvantages. There is an ongoing need to provide alternative medical devices as well as alternative methods for manufacturing and using medical devices. BRIEF SUMMARY [0004] This disclosure provides design, material, manufacturing method, and use alternatives for medical devices. A delivery device for an occlusive implant is disclosed. The delivery device comprises: a delivery sheath having a proximal region and a laser cut distal tip region; a reinforcing member extending along the proximal region; wherein the laser cut distal tip region has one or more laser cuts formed therein that form a patterned distal section, the patterned distal section being configured to shift between a delivery configuration and an expanded configuration; a core member slidably disposed within the delivery sheath; and an occlusive implant releasably coupled to the core member. [0005] Alternatively or additionally to any of the embodiments above, at least some of the one or more laser cuts go completely through a wall surface of the laser cut distal tip region. [0006] Alternatively or additionally to any of the embodiments above, at least some of the one or more laser cuts go only partially through a wall surface of the laser cut distal tip region. [0007] Alternatively or additionally to any of the embodiments above, the one or more laser cuts all extend the same distance proximally along the laser cut distal tip region. [0008] Alternatively or additionally to any of the embodiments above, at least some of the one or more laser cuts extend a different distance proximally along the laser cut distal tip region. [0009] Alternatively or additionally to any of the embodiments above, the patterned distal section includes a plurality of rounded projections. [0010] Alternatively or additionally to any of the embodiments above, the patterned distal section includes a plurality of pointed projections. [0011] Alternatively or additionally to any of the embodiments above, the patterned distal section includes axially-extending grooves. [0012] Alternatively or additionally to any of the embodiments above, the patterned distal section includes circumferentially-extending grooves. [0013] Alternatively or additionally to any of the embodiments above, the patterned distal section includes overlapping grooves. [0014] A delivery device for an occlusive implant is disclosed. The delivery device comprises: a delivery sheath having a proximal region and a distal tip region; wherein the distal tip region includes a patterned distal section; wherein the patterned distal section is configured to allow the distal tip region to shift between a delivery configuration and an expanded configuration; and a proximal reinforcing member disposed along the proximal region. [0015] Alternatively or additionally to any of the embodiments above, the patterned distal section includes laser cuts that go completely through a wall surface of the distal tip region. [0016] Alternatively or additionally to any of the embodiments above, the patterned distal section includes laser cuts that go only partially through a wall surface of the distal tip region. [0017] Alternatively or additionally to any of the embodiments above, the patterned distal section includes laser cuts that all extend the same distance proximally along the distal tip region. [0018] Alternatively or additionally to any of the embodiments above, the patterned distal section includes laser cuts that extend a differing distance proximally along the distal tip region. [0019] Alternatively or additionally to any of the embodiments above, the patterned distal section includes a plurality of rounded projections. [0020] Alternatively or additionally to any of the embodiments above, the patterned distal section includes a plurality of pointed projections. [0021] Alternatively or additionally to any of the embodiments above, the patterned distal section includes axially-extending grooves, circumferentially-extending grooves, or both. [0022] Alternatively or additionally to any of the embodiments above, further comprising a core member slidably dis