Insertion tool with a dissector

Patent metadata

Field	Value
Publication number	US-2025176999-A9
Application number	US-202418744083-A
Country	US
Kind code	A9
Filing date	Jun 14, 2024
Priority date	Apr 9, 2019
Publication date	Jun 5, 2025
Grant date	—

Abstract

An insertion tool for creating a subcutaneous pocket and implanting a device in the pocket. The tool may include a handle, a tunneling tube, a dissector, and an inserter. The dissector may be configured to create the subcutaneous pocket, move from an extended position to a retracted position, and rotate from an operating position disposed on a longitudinal axis of the tunneling tube to an idle position. The insertor including a cannula and configured to hold the device in a passage of the cannula, rotate from an idle position to an operating position disposed on the longitudinal axis of the tunneling tube, and move from a retracted position to an extended position in which the cannula is at least partially within the tunneling tube. The tunneling tube is configured to retract to release the device out of the tunneling tube and deploy the device in the subcutaneous pocket.

First claim

1 . A method for creating a subcutaneous pocket below a skin surface and implanting a device in the subcutaneous pocket, the method comprising:
using a dissector of an insertion tool with the dissector in an extended position in which a blunt tip of the dissector protrudes out of a distal end of a tunneling tube to create the subcutaneous pocket, wherein the tunneling tube defines a passage opening into a cavity of the handle; moving the dissector from the extended position to a retracted position in which the blunt tip is disposed in the cavity of the handle; rotating the dissector from an operating position disposed on a longitudinal axis of the tunneling tube to an idle position disposed off the longitudinal axis of the tunneling tube; rotating an inserter of the insertion tool from an idle position disposed off the longitudinal axis of the tunneling tube to an operating position disposed on the longitudinal axis of the tunneling tube, wherein the inserter holds the device in a passage of a cannula of the inserter; moving the inserter from a retracted position to an extended position in which the cannula is at least partially in the tunneling tube; and retracting the tunneling tube to release the device out of the tunneling tube and deploy the device in the subcutaneous pocket.

2 . The method of claim 1 , further comprising:
moving a slider knob of an actuator of the insertion tool in a first direction to move the dissector from the extended position to the retracted position in which the blunt tip is disposed in the cavity of the handle; moving the slider knob in a second direction to move the inserter from the retracted position to the extended position; and moving the slider knob in the first direction to retract the tunneling tube.

3 . The method of claim 2 , further comprising:
using a stopper of the insertion tool to prevent movement of the slider knob while the dissector is used create the subcutaneous pocket; and removing the stopper of the insertion tool; wherein moving the slider knob in the first direction to move the dissector from the extended position to the retracted position in which the blunt tip is disposed in the cavity of the handle occurs after removal of the stopper.

4 . The method of claim 1 , further comprising using tubing connected to the cannula to provide hydration fluid to the passage of the cannula.

5 . The method of claim 4 , wherein the tubing connects a hydration fluid container and the cannula, and the method further comprises using the hydration fluid container to provide the hydration fluid to the passage of the cannula via the tubing.

6 . The method of claim 1 , wherein rotating the dissector and rotating the inserter comprise using a swing rotatably coupled to the dissector and the inserter.

7 . The method of claim 1 , wherein moving the inserter from the retracted position to the extended position comprises moving the inserter from the retracted position to the extended position while the inserter is in the operating position.

8 . The method of claim 1 , wherein the dissector comprises a first rod configured to move along the cavity of the handle and the passage of the tunneling tube, and the blunt tip is coupled to the first rod such that the first rod is configured to move the blunt tip along the cavity of the handle and the passage of the tunneling tube between the retracted and extended positions.

9 . The method of claim 1 , wherein the insertor comprises a second rod configured to move along the cavity of the handle and the passage of the tunneling tube, and the cannula comprises a first end configured to hold and release the device and a second end coupled to the second rod such that the second rod is configured to move the cannula along the cavity of the handle and the passage of the tunneling tube between the retracted and extended positions.

10 . The method of claim 9 , wherein the cannula retracts with tunneling tube, and the method further comprises using the second rod to force the device at least partially out of the cannula and the tunneling tube.

11 . An insertion tool for creating a subcutaneous pocket below a skin surface and implanting a device in the subcutaneous pocket, the insertion tool comprising:
a handle defining a cavity therein; a tunneling tube defining a passage opening into the cavity of the handle; a dissector comprising a blunt tip and configured to:
(i) create the subcutaneous pocket;
(ii) move from an extended position, wherein the blunt tip protrudes out of a distal end of the tunneling tube, to a retracted position, wherein the blunt tip is disposed in the cavity of the handle; and
(iii) rotate from an operating position disposed on a longitudinal axis of the tunneling tube to an idle position disposed off the longitudinal axis of the tunneling tube; and
an insertor comprising a cannula and configured to:
(i) hold the device in a passage of the cannula;
(ii) rotate from an idle position disposed off the longitudinal axis of the tunneling tube to an operating position disposed on the longitudinal axis of the tunneling tube; and
(iii) move from a retracted position to an extended position in which the cannula is at least partially within the tunneling tube;
wherein the tunneling tube is configured to retract to release the device out of the tunneling tube and deploy the device in the subcutaneous pocket.

12 . The insertion tool of claim 11 , wherein the actuator comprises a slider knob configured to cause the inserter and the dissector to move between the retracted and extended positions.

13 . The insertion tool of claim 11 , further comprising a removable stopper configured to prevent movement of the slider knob.

14 . The insertion tool of claim 11 , further comprising tubing connected to the cannula and configured to provide hydration fluid to the passage of the cannula.

15 . The insertion tool of claim 11 , wherein the handle comprises a swing rotatably coupled to the dissector and the inserter.

16 . The insertion tool of claim 11 , wherein the inserter is configured to move from the retracted position to the extended position when the inserter is set at the operating position.

17 . The insertion tool of claim 11 , wherein the dissector comprises a first rod configured to move along the cavity of the handle and the passage of the tunneling tube, and the blunt tip is coupled to the first rod such that the first rod is configured to move the blunt tip along the cavity of the handle and the passage of the tunneling tube between the retracted and extended positions.

18 . The insertion tool of claim 11 , wherein the insertor comprises a second rod configured to move along the cavity of the handle and the passage of the tunneling tube, and the cannula comprises a first end configured to hold and release the device and a second end coupled to the second rod such that the second rod is configured to move the cannula along the cavity of the handle and the passage of the tunneling tube between the retracted and extended positions.

19 . The insertion tool of claim 18 , wherein the cannula is configured to retract with tunneling tube, and the second rod is configured to force the device at least partially out of the cannula and the tunneling tube.

20 . A package comprising:
an insertion tool; a hydration fluid container; and tubing connecting the hydration fluid container to the insertion tool and configured to provide hydration fluid from the hydration fluid container to the insertion tool.

Assignees

• Senseonics Inc

Inventors

• Chavan Abhi
• Hays Bryan
• Citirik Erman

Classifications

• A61B2017/320056

  Tunnelers · CPC title

• A61B2017/320044

  Blunt dissectors · CPC title

• A61B17/3468 Primary

  for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069) · CPC title