Noninvasive suture delivery device

Patent metadata

Field	Value
Publication number	US-12544053-B2
Application number	US-202218701183-A
Country	US
Kind code	B2
Filing date	Oct 26, 2022
Priority date	Oct 28, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

A noninvasive suture delivery device includes a housing including a distal end and a trigger. An arm assembly is operably coupled to the distal end of the housing and includes a tubular body and a distal end. A suture includes a closed loop and a string. The closed loop defines an opening extending from the distal end of the arm assembly. The string extends from the closed loop and through the tubular body of the arm assembly. When the trigger is activated, a dimension of the opening of the closed loop decreases.

First claim

What is claimed is:

1 . A noninvasive suture delivery device, the device comprising:
a housing including a distal end and a trigger; an arm assembly operably coupled to the distal end of the housing, the arm assembly including a tubular body and a distal end; and a suture including a closed loop and a string, the closed loop defining an opening extending from the distal end of the arm assembly, the string extending from the closed loop and through the tubular body of the arm assembly; wherein when the trigger is activated, a dimension of the opening of the closed loop decreases wherein the arm assembly includes a first arm and a second arm, and the tubular body includes a tube of the first arm and a tube of the second arm.

2 . The device of claim 1 , wherein the string is operably coupled with a tightening mechanism disposed in an interior cavity of the housing, the trigger arranged to activate the tightening mechanism to decrease the dimension of the opening of the closed loop.

3 . The device of claim 2 , wherein the tightening mechanism is a ratchet device including a rotatable drum, wherein a portion of the string is operably coupled with the rotatable drum.

4 . The device of claim 1 , wherein tightening mechanism is arranged to transfer a force to the string of the suture, wherein the force is in a range of approximately 3 lbf to approximately 6 lbf.

5 . The device of claim 1 , wherein the string of the suture includes a first portion and a second portion, the first portion extending through the tube of the first arm and the second portion extending through the tube of the second arm.

6 . The device of claim 5 , wherein the closed loop includes a first loop concentrically aligned with a second loop, the first loop connected to the first portion of the string and the second loop connected to the second portion of the string.

7 . The device of claim 1 , wherein the arm assembly includes a movable spacer disposed between the first and second arms, wherein when the movable spacer moves in a first direction, a space between the first and second arms increases, and when the spacer moves in a second direction, the space between the first and second arms decreases.

8 . The device of claim 7 , wherein the spacer is operably coupled to a rotatable knob, wherein when the knob is rotated in a first direction, the space between the first and second arms increases, and when the knob is rotated in a second direction, opposite the first direction, the space between the first and second arms decreases.

9 . A noninvasive suture delivery device, the device comprising:
a handle including a lever operably coupled with a rotatable drum; an arm including a proximal end operably coupled with a distal end of the handle; and a suture including a closed loop extending from a distal end of the arm and a string connected to the closed loop and operably coupled to the rotatable drum of the handle; wherein when the lever of the handle is compressed, the rotatable drum rotates in a first direction to decrease a dimension of the closed loop; wherein the arm includes a first arm having a tubular body and a second arm having a tubular body; and wherein the string includes a first portion connected to a first loop and disposed through the tubular body of the first arm, and a second portion connected to a second loop and disposed through the tubular body of the second arm; and wherein the first and second loops are concentrically arranged to define the closed loop.

10 . The device of claim 9 , further comprising an opening in the handle disposed between the rotatable drum and the distal end of the handle, the string accessible through the opening of the handle.

11 . The device of claim 9 , further comprising an indicator assembly operably coupled to the rotatable drum and movable between a first position and a second position spaced from the first position, wherein when the indicator assembly is in the first position, a torque in the rotatable drum is greater than a restraining torque provided by a spring coupled to the rotatable drum, and when the indicator assembly is in the second position, the torque in the rotatable drum is equal to or less than the restraining torque provided by the spring.

12 . A cervical suture deployment device, comprising:
a handle; an elongated member extending from the handle, the elongated member configured to be inserted into the vagina for use in a cervical cerclage procedure, the elongated member including a lumen therethrough and a distal opening; a suture disposed at least partially in the lumen and attached to the handle to be pulled by the handle relative to the elongated member, the suture including a preformed loop at a distal end of the suture that is configured to be deployed through the distal opening of the elongated member, wherein the preformed loop is sized to surround a cervix of a patient in a loose state, wherein the suture is configured to tighten the preformed loop around the cervix when pulled by the handle to a tightened state and a cutting mechanism disposed on the elongated member for cutting the suture, wherein the cutting mechanism includes a button actuator disposed on an underside of the elongated member, wherein pressing the button actuator advances the cutting mechanism to sever the suture” after “tightened state.

13 . The device of claim 12 , further comprising a deployment mechanism operatively connected to the elongated member and the suture to deploy the suture through the distal opening.

14 . The device of claim 13 , wherein the deployment mechanism is a slider configured to slide relative to the elongated member.

15 . The device of claim 12 , wherein the preformed loop includes a one-way slip tie such that the preformed loop can be tightened by being proximally pulled but not loosened.

16 . The device of claim 12 , wherein the handle includes a lever operatively connected to a rotating member that is mounted to the handle to rotate relative to the handle, wherein a proximal end of the suture is attached to the rotating member to be pulled by the rotating member when the lever is actuated.

17 . The device of claim 12 , further comprising a deployment mechanism operatively connected to the elongated member and the suture to deploy the suture through the distal opening, wherein the deployment mechanism is a slider configured to slide relative to the elongated member, wherein the slider includes a second cutting mechanism disposed thereon extending into the lumen.

Assignees

• Univ Michigan Regents

Inventors

• Townsel Courtney
• Harris Adrienne R
• Ransden Jeffrey E
• Johnson Nathaniel

Classifications

• A61B2017/00663

  the implement being a suture · CPC title

• A61B2017/00623

  Introducing or retrieving devices therefor · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B2017/00407

  Ratchet means · CPC title

• A61B17/42

  Gynaecological or obstetrical instruments or methods {(ligaturing clamps or clips for the umbilical cord A61B17/122; curettage A61B17/320708)} · CPC title