Reconfigurable suture needles being transformable between higher profile configurations and lower profile configurations

Patent metadata

Field	Value
Publication number	US-12096930-B2
Application number	US-202217588565-A
Country	US
Kind code	B2
Filing date	Jan 31, 2022
Priority date	Aug 13, 2019
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. The curved proximal section is hollow and includes an elongated conduit extending from a proximal end to a distal end thereof. The curved distal section includes a needle point at a distal end thereof and a hollow post projecting proximally from a proximal end thereof. A suture thread passes through the elongated conduit of the curved proximal section and has a distal end that passes through the hollow post of the curved distal section for being secured to the proximal end of the curved distal section. The elongated body has a first configuration with a higher profile in which the hollow post of the curved distal section is inserted into the elongated conduit at the distal end of the curved proximal section, and a second configuration with a lower profile in which the hollow post of the curved distal section is uncoupled from the elongated conduit at the distal end of the curved proximal section.

First claim

What is claimed is:

1. A reconfigurable suture needle comprising:
an elongated body including a curved proximal section and a curved distal section;
said curved proximal section being hollow and including an elongated conduit extending from a proximal end to a distal end of said curved proximal section;
said curved distal section including a needle point at a distal end thereof and a hollow post projecting proximally from a proximal end thereof;
a suture thread passing through the elongated conduit of said curved proximal section and having a distal end that passes through said hollow post for being secured to the proximal end of said curved distal section;
wherein said elongated body has a first configuration with a higher profile in which said hollow post of said curved distal section is inserted into the elongated conduit at the distal end of said curved proximal section;
wherein said elongated body is configured to be moved to a second configuration with a lower profile for insertion through a trocar to a target site within a living body;
wherein, in the second configuration said hollow post of said curved distal section is uncoupled from the elongated conduit at the distal end of said curved proximal section, the elongated body being configured to be moved to the first configuration after insertion through the trocar to the target site by insertion of the hollow post of the curved distal section into the distal end of the curved proximal section;
wherein said hollow post of the curved distal section has an outer diameter that matches an inner diameter of the elongated conduit of the curved proximal section for forming a friction fit between the hollow post of the curved distal section and the elongated conduit of the curved proximal section; and
wherein the friction fit between the hollow post of the curved distal section and the elongated conduit of the curved proximal section defines a joint that enables the curved proximal and distal sections to rotate relative to one another between a semi-circular shape and a wave shape.

2. The reconfigurable suture needle as claimed in claim 1 , wherein said curved proximal section of said elongated body defines about one-quarter (¼) of a circle, and wherein said curved distal section of said elongated body defines about one-quarter (¼) of a circle.

3. The reconfigurable suture needle as claimed in claim 2 , wherein said elongated body has a semi-circular shape when in the first configuration.

4. The reconfigurable suture needle as claimed in claim 3 , wherein said curved proximal and distal sections of said elongated body are tethered together by said suture thread when said elongated body is in the second configuration.

5. The reconfigurable suture needle as claimed in claim 1 , wherein the wave shape defines a sine wave.

6. A method of passing said reconfigurable suture needle of claim 1 through the trocar comprising:
positioning said elongated body of said reconfigurable suture needle adjacent a proximal end of the trocar, the trocar having an elongated conduit defining an inner diameter;
with said elongated body in the second configuration, passing said curved proximal and distal sections of said elongated body, uncoupled from one another, through the elongated conduit of the trocar;
after the passing step, removing said elongated body from the trocar and inserting said hollow post of said curved distal section into the elongated conduit of said curved proximal section to place said elongated body into the first configuration.

7. The method as claimed in claim 6 , wherein said elongated body in the second configuration has a height that is less than the inner diameter of said elongated conduit of the trocar, and wherein said elongated body in the first configuration has a height that is greater than the inner diameter of said elongated body.

8. The method as claimed in claim 7 , wherein said elongated body has a semi- circular shape when in the first configuration.

9. A reconfigurable suture needle comprising:
an elongated body including a curved proximal section and a curved distal section;
said curved proximal section being hollow and including an elongated conduit extending from a proximal end to a distal end thereof;
said curved distal section including a proximal end, a distal end, and a male post projecting proximally from the proximal end thereof,
a suture thread passing through the elongated conduit of said curved proximal section and having a distal end secured to said male post of said curved distal section;
said male post being inserted into the elongated conduit at the distal end of said curved proximal section for forming a friction fit between said male post and the elongated conduit of said curved proximal section, the elongate body being configured for movement between a first configuration in which the curved proximal and distal sections are separated from one another for insertion through a trocar to a target site within a living body to a second configuration in which the male post of the curved distal section is inserted into the elongated conduit of the curved proximal section, the elongated body being configured to be moved to the second configuration after insertion through the trocar to the target site by insertion of the male post into the distal end of the curved proximal section;
wherein the male post of the curved distal section has an outer diameter and the elongated conduit at the distal end of the curved proximal section has an inner diameter that closely matches the outer diameter of the male post for forming the friction fit; and
wherein the friction fit enables the curved proximal and distal sections of the elongated body to rotate relative to one another for transforming the elongated body from a higher profile configuration to a lower profile configuration.

10. The reconfigurable suture needle as claimed in claim 9 , wherein said curved proximal section of said elongated body defines about one-quarter (¼) of a circle and said curved distal section of said elongated body defines about one-quarter (¼) of a circle.

11. The reconfigurable suture needle as claimed in claim 9 , further comprising:
said male post being hollow and having an elongated conduit formed therein;
a suture thread passing through the elongated conduit of said curved proximal section and having a distal end that passes through the elongated conduit of said male post for being secured to the proximal end of said curved distal section.

12. The reconfigurable suture needle as claimed in claim 11 , wherein the proximal end of said curved distal section is crimped for securing the distal end of said suture thread to said male post of said curved distal section.

13. The reconfigurable suture needle as claimed in claim 9 , wherein the distal end of said curved distal section is tapered and includes a needle point.

14. A method of passing said reconfigurable suture needle of claim 9 through the trocar comprising:
positioning said elongated body of said reconfigurable suture needle adjacent a proximal end of the trocar, the trocar having an elongated conduit defining an inner diameter;
removing the male post of the curved distal section from the curved proximal section while the suture thread extends through the curved proximal section to couple to the curved distal section to place the elongate body in the first configuration and, passing said elongated body through the elongated conduit of the trocar in the first configuration;
after the passing step, removing said elongated body from the trocar and retracting the suture proximally to pull the male post of the curved dist

Assignees

• Ethicon Inc

Inventors

• Vailhe Christophe
• Tannhauser Robert J
• Kriksunov Leo B

Classifications

• A61B2017/0609

  having sharp tips at both ends, e.g. shuttle needle alternately retained and released by first and second facing jaws of a suturing instrument · CPC title

• A61B17/3478

  Endoscopic needles, e.g. for infusion (biopsy needles A61B10/0233; catheters with injection needles A61M25/0067) · CPC title

• A61B17/3403

  Needle locating or guiding means · CPC title

• A61B17/06004

  Means for attaching suture to needle (tipping A61B17/06195) · CPC title

• A61B2017/06095

  pliable · CPC title