IP Library › Granted Patent US 12,161,815
Granted Patent B2
US 12,161,815 · App. 17/009,447 · Granted Dec 10, 2024

Medical device handle for articulation of a catheter

Inventors: Damian Muldoon (Galway, IE); Brian Murphy (Galway, IE); Shane Ward (Galway, IE); Diarmuaid Quaid (Galway, IE)
Assignee: Creganna Unlimited Company
A61M25/0136A61M25/0113A61M25/0147
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Quick Facts
Patent No.
US 12,161,815
App. No.
17/009,447
Granted
Dec 10, 2024
Kind
B2
Abstract

A medical device handle for articulation of a catheter includes a housing having a cylindrical shape, a control element at least partly encompassed by the housing, the control element having a pair of cross-cut threads cross-cut in opposing directions around a longitudinal axis of the medical device handle, and a pair of pull wire mounting elements each having a mounting thread engaging with one of the cross-cut threads. The control element is mechanically coupled to each of the pull wire mounting elements via the cross-cut threads and the mounting threads without any additional gear in between. A rotation of the control element around the longitudinal axis moves the pull wire mounting elements in opposite linear directions along the longitudinal axis.

Claims (21)

1. A medical device handle for articulation of a catheter, comprising:

a housing having a cylindrical shape;

a control element at least partly encompassed by the housing, the control element having a pair of cross-cut threads cross-cut in opposing directions around a longitudinal axis of the medical device handle;

a pair of pull wire mounting elements each having a mounting thread engaging with one of the cross-cut threads, the pull wire mounting elements are disposed on sides of the control element opposite to one another in a direction perpendicular to the longitudinal axis, the control element is mechanically coupled to each of the pull wire mounting elements via the cross-cut threads and the mounting threads without any additional gear in between, a rotation of the control element around the longitudinal axis moves the pull wire mounting elements in opposite linear directions along the longitudinal axis; and

a stop element of the control element that limits rotation of the control element by abutment of the pull wire mounting elements with the control element, the stop element limits rotation of the control element by abutment of the pull wire mounting elements with a rotational portion of the control element.

2. The medical device handle of claim 1 , wherein the housing has an elongate catheter extending therefrom.

3. The medical device handle of claim 2 , wherein the pull wire mounting elements are connectable to pull wires that allow for steering a tip of the elongate catheter.

4. The medical device handle of claim 1 , wherein the control element is a rotating shaft with a pair of external threads formed as the cross-cut threads.

5. The medical device handle of claim 1 , wherein the control element is rotatable up to 720 degrees about the longitudinal axis.

6. The medical device handle of claim 1 , wherein the pull wire mounting elements each have a semi-circular shape extending around the control element.

7. The medical device handle of claim 6 , wherein the pull wire mounting elements together form a tubular shape cut in two halves and together circumferentially surround the control element.

8. The medical device handle of claim 1 , wherein the rotation of the control element moves at least one of the pull wire mounting elements to extend beyond an end of the control element along the longitudinal axis.

9. A method of assembling a medical device handle for articulation of a catheter, comprising:

providing a control element having a pair of cross-cut threads cross-cut in opposing directions around a longitudinal axis of the control element;

providing a pair of pull wire mounting elements each having a mounting thread engaging with one of the cross-cut threads;

providing a housing having a cylindrical shape;

mounting the housing to at least partly encompass the pull wire mounting elements and the control element;

mechanically coupling the control element to each of the pull wire mounting elements via the cross-cut threads and the mounting threads without any additional gear in between, the pull wire mounting elements are disposed on sides of the control element opposite to one another in a direction perpendicular to the longitudinal axis; and

providing a stop element of the control element that limits rotation of the control element by abutment of the pull wire mounting elements with the control element, the stop element limits rotation of the control element by abutment of the pull wire mounting elements with a rotational portion of the control element.

10. The method of claim 9 , wherein the cross-cut threads are cross-cut into an external surface of the control element.

11. The method of claim 9 , wherein mechanically coupling comprises coupling such that rotating the control element around the longitudinal axis moves the pull wire mounting elements in opposite linear directions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2020
From: MULDOON, DAMIAN; MURPHY, BRIAN; WARD, SHANE; QUAID, DIARMUAID
To: CREGANNA UNLIMITED COMPANY
Reel/Frame 054159/0949 →
Priority Claims (1)
EP 19195025 · Sep 3, 2019 · regional
Continuity (1)
Related Publication 20210060297A1 · Mar 4, 2021