Medical Device Delivery System With Locking System

Patent metadata

Field	Value
Publication number	US-2024398568-A1
Application number	US-202418798672-A
Country	US
Kind code	A1
Filing date	Aug 8, 2024
Priority date	Nov 8, 2019
Publication date	Dec 5, 2024
Grant date	—

Abstract

Medical device delivery system including a catheter, handle, lock line handle, and lock line. The catheter includes a proximal end portion and a distal end portion. The handle is coupled to the proximal end portion of the catheter. The lock line handle is releasably coupled to the handle and actuatable between a lock position and an unlock position. The lock line includes a first end portion fixedly coupled to the lock line handle, a second end portion releasably coupled to the lock line handle, and an intermediate portion configured to be releasably coupled to the medical implant disposed proximate the distal end portion of the catheter. Actuating the lock line handle from the lock position toward the unlock position increases tension on the lock line, and actuating the lock line handle from the unlock position toward the lock position decreases tension on the lock line.

First claim

1 . A system for delivering an implant to a vascular system, comprising:
an implant having a first member moveable between a first position and a second position and a lock actuatable between a locked configuration in which the lock restricts movement of the first member and an unlocked configuration in which the lock permits movement of the first member; and a delivery device having a delivery catheter, a delivery handle, and a lock line, the delivery catheter having a first end releasably coupled to the implant and a second end coupled to the delivery handle, the delivery handle having a lock line handle releasably coupled to the delivery handle and being rotatable relative thereto between a locked position and an unlocked position, and the lock line being coupled to the lock line handle and being configured such that actuation of the lock line by rotation of the lock line handle between the locked position and the unlocked position respectively actuates the lock between the locked configuration and the unlocked configuration.

2 . The system of claim 1 , wherein the implant is a fixation device having a second member disposed opposite the first member, the second member being moveable relative to the first member to capture tissue disposed therebetween.

3 . The system of claim 2 , wherein:
the fixation device includes a third member and a fourth member, the third member being moveable between a first position and a second position, the fourth member being disposed opposite the third member and moveable relative thereto to capture tissue disposed therebetween, and the lock is configured to restrict movement of the third member when the lock is in the locked configuration and to permit movement of the third member when the lock is in the unlocked configuration.

4 . The system of claim 2 , wherein:
the implant includes an actuation mechanism having a stud configured to move in an axial direction upon actuation of the actuation mechanism, the first member is an arm operably coupled to the actuation mechanism such that movement of the stud in an axial direction moves the arm between the first and second positions, and the lock, when in the locked configuration, is configured to engage the stud to restrict movement thereof in the axial direction, and when in the unlocked configuration, the lock is configured to disengage from the stud so as to permit movement of the stud in the axial direction.

5 . The system of claim 4 , wherein:
the lock includes a binding plate and a release harness, the binding plate being configured to engage the stud when the lock is in the locked configuration and to disengage the stud when the lock is in the unlocked configuration, the release harness engages the binding plate and is configured to move the binding plate from the locked configuration to the unlocked configuration upon actuation of the release harness, and the lock line releasably engages to the release harness such that tensioning the lock line actuates the lock from the locked configuration to the unlocked configuration.

6 . The system of claim 1 , wherein:
the implant includes an actuation mechanism operably connected to the first member, the actuation mechanism including a coupling member and a base, the coupling member being releasably coupled to the first end of the delivery catheter, the base being axially moveable relative to the coupling member upon actuation of the actuation mechanism, and the lock being disposed at least partially between the coupling member and the base and being configured to restrict axial movement of the base when in the locked configuration and to permit axial movement of the base relative to the coupling member when in the unlocked configuration, and the delivery device includes an actuator rod extending from the delivery handle and from the first end of the delivery catheter, the actuator rod being releasably coupled to the actuation mechanism and being configured to actuate the actuation mechanism upon axial movement thereof.

7 . The system of claim 1 , wherein:
the delivery handle includes a first end, a second end connected to the delivery catheter, and a longitudinal axis extending between the first and second ends thereof, and the lock line handle defines an axis of rotation about which the lock line handle is rotated between the first and second positions thereof, the axis of rotation extending in a direction transverse to the longitudinal axis of the delivery handle.

8 . The system of claim 7 , wherein:
the delivery handle includes a spool, the lock line is engaged the lock of the implant and extends about at least a portion of the spool, and the lock line handle includes a shaft releasably coupled to the spool such that the spool rotates with the lock line handle between the locked and unlocked positions and, when the lock line handle is released from the delivery handle, the lock line handle is released from the spool.

9 . The system of claim 8 , wherein the lock line includes a first end portion fixedly secured to the lock line handle and a second end portion releasably coupled to the lock line handle such that, upon release and withdrawing of the lock line handle from the delivery handle, the second end portion of the lock line is withdrawn from the delivery device and the lock line is released from the implant.

10 . The system of claim 1 , wherein the delivery handle includes a locking assembly moveably coupled to a main body of the delivery handle and configured to selectively secure the delivery handle in the locked and unlocked positions.

11 . The system of claim 10 , wherein the locking assembly includes a latch-detent lock comprising a pin and first and second detents, the first detent corresponding to the locked position, and the second detent corresponding to the unlocked position of the lock line handle.

12 . The system of claim 11 , wherein the lock line handle includes a lock knob defining the first and second detents, and the locking assembly includes a sliding lock slidably coupled to the delivery device and defining the pin of the latch-detent lock.

13 . The system of claim 10 , wherein the delivery handle includes a release assembly coupled to a main body of the delivery handle and comprising a slide and a catch, the slide being slidable relative to the main body, and the catch being selectively engageable with the lock line handle to selectively release the lock line handle from the delivery handle.

14 . A system for delivering an implant to a vascular system, comprising:
an implant having a first member moveable between a first position and a second position, and a lock moveable between a locked configuration in which the lock restricts movement of the first member and an unlocked configuration in which the lock permits movement of the first member; and a delivery device having a delivery catheter, a delivery handle, and a lock line, the delivery catheter having a first end releasably coupled to the implant and a second end coupled to the delivery handle, the delivery handle having a lock line handle rotatably coupled thereto such that the lock line handle is rotatable between a locked position and an unlocked position, and the lock line being coupled to the lock line handle and being configured such that actuation of the lock line by rotation of the lock line handle between the locked position and the unlocked position respectively actuates the lock between the locked configuration and the unlocked configuration.

15 . The system of claim 14 , wherein the lock line includes a first end portion fixedly coupled to the lock line handle, a secon

Assignees

• Evalve Inc

Inventors

• Kizuka Koji
• Gonzales Gabriel
• Hoven Dylan Van
• Chu Alexander
• Jagger Erik
• Mosher Scott

Classifications

• A61F2/2427

  Devices for manipulating or deploying heart valves during implantation · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B2017/00323

  Cables or rods · CPC title

• A61B2017/00243

  cardiac · CPC title

• A61B2017/00115

  with audible or visual output · CPC title