Introducer sheath with braided filament securement mechanism

Patent metadata

Field	Value
Publication number	US-10433824-B2
Application number	US-201615288242-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Jul 15, 2011
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A tubular body for a medical device for insertion within a body passageway of a patient. The tubular body includes a tubular inner liner. A braided member is disposed along an outer surface of the liner. The braided member includes intersecting filaments and cells defined by the filaments. A securement mechanism, such as radiopaque solder, is disposed along a circumferential region of the braided member. The securement mechanism is attached to portions of the filaments and spans the cells that correspond to the circumferential region to inhibit relative movement of filament ends. An outer surface of the securement mechanism is sized to extend radially outward to a position up to an outer surface of the braided member to not add to the overall wall thickness of the tubular body. An outer jacket is positioned longitudinally around the braided member and connected to the inner liner.

First claim

The invention claimed is:

1. A method for manufacturing a tubular body for a medical device, comprising:
applying solder to a circumferential region of a braided member for an axial length, wherein the braided member includes a plurality of intersecting filaments and a plurality of cells defined by the intersecting filaments, wherein the solder rigidly fuses portions of the intersecting filaments and spans the cells, wherein an outer surface of the braided member is positioned at or beyond an outer surface of the solder;
removing portions of the solder such that the outer surface of the braided member extends at or beyond the outer surface of the solder;
positioning the braided member over at least a portion of an inner liner tube; and
securing an outer layer tube over the inner liner tube and the braided member.

2. The method of claim 1 , further comprising cutting the solder along the axial length to shorten the axial length of the solder.

3. The method of claim 1 , wherein the applying step further comprises applying solder to multiple circumferential regions of the braided member.

4. The method of claim 3 , wherein the multiple circumferential regions are axially spaced at regular intervals.

5. The method of claim 1 , further comprising positioning a coiled member over at least a portion of the inner liner tube, wherein the securing step further comprises securing the outer layer tube over the inner liner tube, the braided member, and the coiled member.

6. A method for manufacturing a tubular body for a medical device, comprising:
applying solder to multiple circumferential regions of a braided member for an axial length, said multiple circumferential regions being axially spaced at regular intervals, wherein the braided member includes a plurality of intersecting filaments and a plurality of cells defined by the intersecting filaments, wherein the solder rigidly fuses portions of the intersecting filaments and spans the cells, wherein an outer surface of the braided member is positioned at or beyond an outer surface of the solder;
positioning the braided member over at least a portion of an inner liner tube; and
securing an outer layer tube over the inner liner tube and the braided member.

7. The method of claim 6 , wherein the applying step further comprises removing portions of the solder so that the outer surface of the braided member extends at least beyond the outer surface of the solder.

8. The method of claim 6 , further comprising cutting the solder along the axial length to shorten the axial length of the solder.

9. The method of claim 6 , further comprising positioning a coiled member over at least a portion of the inner liner tube, wherein the securing step further comprises securing the outer layer tube over the inner liner tube, the braided member, and the coiled member.

10. A method for manufacturing a tubular body for a medical device, comprising:
applying solder to a circumferential region of a braided member for an axial length, wherein the braided member includes a plurality of intersecting filaments and a plurality of cells defined by the intersecting filaments, wherein the solder rigidly fuses portions of the intersecting filaments and spans the cells, wherein an outer surface of the braided member is positioned at or beyond an outer surface of the solder;
positioning the braided member over at least a portion of an inner liner tube;
positioning a coiled member over at least a portion of the inner liner tube; and
securing an outer layer tube over the inner liner tube, the braided member, and the coiled member.

11. The method of claim 10 , wherein the applying step further comprises removing portions of the solder so that the outer surface of the braided member extends at least beyond the outer surface of the solder.

12. The method of claim 10 , further comprising cutting the solder along the axial length to shorten the axial length of the solder.

13. The method of claim 10 , wherein the applying step further comprises applying solder to multiple circumferential regions of the braided member.

14. The method of claim 13 , wherein the multiple circumferential regions are axially spaced at regular intervals.

Assignees

• Cook Medical Technologies Llc

Inventors

• Ravichandran Mahendran
• Tekulve Kurt J
• Deckard Michael D
• Reynolds Michelle

Classifications

• A61M2025/0059

  having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking · CPC title

• B23K2101/04

  Tubular or hollow articles · CPC title

• A61B17/00234 Primary

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title

• A61M25/0053

  having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid · CPC title

• A61B17/3468

  for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069) · CPC title