公开(公告)号：US20230364416A1

公开(公告)日：2023-11-16

申请号：US18113503

申请日：2023-02-23

Applicant: MEDTRONIC, INC.

Inventor： Damian M. Becker ,  Haitao Zhang ,  Victor R. Hernandez ,  Jayesh Patel ,  Chandrasekhar Ramasubramanian Rajagopalan

IPC: A61N1/05

CPC classification number: A61N1/0551

Abstract: Implantable medical leads include at least one of a polymeric stylet tube and/or a distal backfill material that is softer than is conventional at least in the area where a stylet bend will cause a distal bend in the lead. The polymeric stylet tube provides for improved torsional and column stiffness during insertion while the softer distal backfill material reduces a whipping action to increase the steerability and control of the lead during insertion. The softer backfill material may be provided alone or in combination with a harder distal backfill material. The softer backfill material may be provided as an insert that is encapsulated by the harder distal back fill material or may be provided as a backfill material that exists in a position adjacent to the harder backfill material.

公开(公告)号：US12097335B2

公开(公告)日：2024-09-24

申请号：US16552613

申请日：2019-08-27

Applicant: Medtronic, Inc.

Inventor： Elizabeth Kregel ,  Thomas I. Miller ,  Jason Vargas ,  Jayesh Patel

IPC: A61N1/05 ,  A61B17/34 ,  A61B17/50 ,  A61M25/01 ,  A61M25/09 ,  A61N1/375 ,  A61B17/00 ,  A61N1/04

CPC classification number: A61M25/0102 ,  A61B17/3468 ,  A61M25/0905 ,  A61N1/37518 ,  A61B2017/00477 ,  A61B2017/00831 ,  A61B2017/00955 ,  A61M25/09041 ,  A61N1/0488 ,  A61N1/05 ,  A61N2001/0578

Abstract: A custom length stylet assembly for meeting medical device length tolerances. The custom length stylet assembly including a stylet wire having a length extending between a distal end and a proximal end, stylet handle defining a longitudinally oriented throughbore sized to retain a proximal portion of the stylet wire, the stylet handle further defining a proximately positioned track and tab, the track configured to retain a bent proximal end portion of the stylet wire, the length of the stylet wire selected during assembly of the stylet assembly to conform to the corresponding length of a body implantable lead within a predefined tolerance, the tab of the stylet handle melted into the track, thereby securely fastening stylet wire to the stylet handle to inhibit rotation or dislodgement.

公开(公告)号：US20210060294A1

公开(公告)日：2021-03-04

申请号：US16552613

申请日：2019-08-27

Applicant: Medtronic, Inc.

Inventor： Elizabeth Kregel ,  Thomas I. Miller ,  Jason Vargas ,  Jayesh Patel

IPC: A61M25/01 ,  A61M25/09

Abstract: A custom length stylet assembly for meeting medical device length tolerances. The custom length stylet assembly including a stylet wire having a length extending between a distal end and a proximal end, stylet handle defining a longitudinally oriented throughbore sized to retain a proximal portion of the stylet wire, the stylet handle further defining a proximately positioned track and tab, the track configured to retain a bent proximal end portion of the stylet wire, the length of the stylet wire selected during assembly of the stylet assembly to conform to the corresponding length of a body implantable lead within a predefined tolerance, the tab of the stylet handle melted into the track, thereby securely fastening stylet wire to the stylet handle to inhibit rotation or dislodgement.