Tool for hemostasis and tissue approximation

Patent metadata

Field	Value
Publication number	US-12458364-B2
Application number	US-201917285192-A
Country	US
Kind code	B2
Filing date	Nov 4, 2019
Priority date	Nov 8, 2018
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

Disclosed are systems and methods for safely and effectively deploying a hemoclip onto a patient's desired target using a combined hemoclip and endoscopic system. For instance, disclosed is an endoscope that includes a lumen for a hemoclip of the present disclosure to pass through. Additionally, disclosed are hemoclips that are configured to be in a compressed position until the hemoclip is deployed out of an endoscope where it opens into an X-shape. Then, the hemoclip may be clipped onto the target to encapsulate the desired target within the patient. Once the hemoclip is clamped onto the target, the endoscope can move onto the next target for successive deployment and utilization of the hemoclips without manual reload.

First claim

What is claimed is:

1 . An endoscopic device for deploying a hemoclip onto a desired target, the device comprising:
at least one hemoclip comprising a first jaw and a second jaw that intersect at a pivot joint to form an X-shape, the pivot joint including a joint with one axis of rotation; a spring located behind the pivot joint and in between the first jaw and the second jaw, one end of the spring contacting the first jaw and another end of the spring contacting the second jaw such that the spring contacts both the first and second jaws; and an endoscope comprising a channel sized for the at least one hemoclip and a distal portion having an opening connected to the channel where the at least one hemoclip is deployed, wherein: the at least one hemoclip is configured to be in an open position or in a closed position, and ends of the first jaw do not contact ends of the second jaw in the open position, the at least one hemoclip is in a compressed X-shape when not deployed from the endoscope and is capable of being in an expanded X-shape when deployed from the endoscope; and the at least one hemoclip has a proximal portion facing a target site and a distal portion facing inward towards the endoscope.

2 . The endoscopic device of claim 1 , wherein the hemoclip comprises a set of teeth on opposing surfaces of the first jaw and the second jaw that face each other.

3 . The endoscopic device of claim 2 , wherein the set of teeth are configured to lock onto the desired target.

4 . The endoscopic device of claim 2 , wherein the set of teeth are located on the proximal portion of the hemoclip.

5 . The endoscopic device of claim 1 , wherein:
proximal portions of the first and second jaws are configured to clamp onto the target site; and the spring is configured to bias the first and second jaws in the open position as the first and second jaws are deployed out of the endoscope.

6 . The endoscopic device of claim 4 , wherein the hemoclip further comprises a set of latches on opposing sides facing each other on a distal end of the hemoclip, wherein the set of latches are configured to lock onto each other thereby locking the set of teeth onto the desired target.

7 . The endoscopic device of claim 6 , wherein the set of latches comprises a nail and a corresponding hole to lock in the set of latches onto each other.

8 . The endoscopic device of claim 6 , wherein the set of latches are configured to lock onto each other via at least one of the following: a screw, an adhesive, and other locking mechanisms.

9 . The endoscopic device of claim 6 , wherein the channel comprises an internal tunnel where the hemoclip is stored and deployed.

10 . The endoscopic device of claim 9 , wherein the tunnel comprises a distal end where the hemoclip is deployed.

11 . The endoscopic device of claim 10 , wherein the tunnel comprises a proximal end that is configured to be connected to a handle.

12 . The endoscopic device of claim 10 , wherein the tunnel comprises a set of metal gates located near or at a distal end of the endoscope that is configured to hold the hemoclip in place within the endoscope.

13 . The endoscopic device of claim 12 , wherein the tunnel comprises at least one firing mechanism located on opposing sides of each other inside the tunnel towards the distal end of the tunnel.

14 . The endoscopic device of claim 10 , wherein the hemoclip is configured to be deployed out of the endoscope at the opening at a distal end of the endoscope.

15 . The endoscopic device of claim 13 , wherein the at least one firing mechanism is activated to close the set of latches onto each other.

16 . The endoscopic device of claim 12 , wherein the set of metal gates are configured to open and close based on force exerted by the hemoclip as the hemoclip is pushed out of the tunnel.

17 . The endoscopic device of claim 1 , wherein the spring remains in between the first jaw and the second jaw when the at least one hemoclip is in the compressed X-shape and when the at least one hemoclip is in the expanded X-shape.

18 . A method of deploying a hemoclip inside a patient, the method comprising:
deploying an endoscope inside the patient, wherein the endoscope comprises an at least one hemoclip inside a channel, wherein the at least one hemoclip comprises a first jaw and a second jaw that intersect at a pivot joint to form an X-shape, the pivot joint including a joint with one axis of rotation, and a spring located behind the pivot joint between the first jaw and the second jaw, one end of the spring contacting the first jaw and another end of the spring contacting the second jaw such that the spring contacts both the first and second jaws, wherein the at least one hemoclip is configured to be in an open position or in a closed position, and ends of the first jaw do not contact ends of the second jaw in the open position, and wherein the at least one hemoclip is configured to be stored in and deployed from the endoscope; guiding the endoscope to a desired target inside the patient such that a proximal portion of the at least one hemoclip faces the desired target and a distal portion of the at least one hemoclip faces inward towards the channel of the endoscope; deploying the at least one hemoclip out of the endoscope as to encapsulate the desired target, wherein the first jaw and the second jaw are configured to be spread open in the open position as the at least one hemoclip is deployed from the endoscope, wherein the spring is configured to bias the first and second jaws in the open position as the first and second jaws are deployed out of the endoscope; and activating a firing mechanism inside the endoscope to clamp the at least one hemoclip onto the desired target, wherein the proximal portion of the at least one hemoclip comprise a set of teeth on opposing surfaces of the first jaw and the second jaw that face each other, and the set of teeth located on proximal portions of the first and second jaws are configured to clamp onto the desired target.

19 . The method of claim 18 , wherein the firing mechanism is located on opposing sides of each other inside the channel for compressing the distal portions of the first and second jaws of the at least one hemoclip.

20 . The method of claim 18 , wherein the at least one hemoclip is in a compressed X-shape when not deployed from the endoscope and is capable of being in an expanded X-shape when deployed from the endoscope.

21 . The method of claim 18 , wherein deploying the at least one hemoclip out of the endoscope comprises deploying the at least one hemoclip halfway out of the endoscope so that the spring located closer to the distal portion of the at least one hemoclip than to the proximal portion of the at least one hemoclip causes the first and second jaws on the at least one hemoclip to open.

Assignees

• Cedars Sinai Medical Center

Inventors

• Goldenberg David

Classifications

• A61B2017/12004

  for haemostasis, for prevention of bleeding · CPC title

• A61B17/1227

  Spring clips · CPC title

• A61B1/018 Primary

  for receiving instruments · CPC title

• A61B2017/00951

  adhesive · CPC title

• A61B17/1285 Primary

  for minimally invasive surgery · CPC title