Tools and method for subcutaneous device insertion

Patent metadata

Field	Value
Publication number	US-11266440-B2
Application number	US-201815938169-A
Country	US
Kind code	B2
Filing date	Mar 28, 2018
Priority date	Mar 30, 2017
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

An implantation tool for implanting a medical device subcutaneously includes a core extending along a longitudinal axis. The core is formed with a longitudinal recess extending along the longitudinal axis. A shell protrudes from an end of the core in the direction of the longitudinal axis. The shell defines a compartment for carrying the medical implant. The compartment is connected to the longitudinal recess. A rod that extends along the longitudinal axis is arranged in the longitudinal recess.

First claim

The invention claimed is:

1. An implantation tool for implanting a medical implant subcutaneously, the implantation tool comprising:
a core extending along a longitudinal axis, said core being formed with a longitudinal recess extending along said longitudinal axis;
a shell protruding from an end of said core in a direction of said longitudinal axis, said shell defining being a structure separate from, and movable relative to said core, said shell being formed with a compartment, and said compartment being fluidly connected to said longitudinal recess, for carrying the medical implant, and said shell having a first part and a second part encasing the medical implant therebetween in a locked configuration of said shell and being configured to move apart in a transverse direction relative to the longitudinal direction to assume an unlocked configuration for releasing the medical implant from said shell; and
a rod extending along the longitudinal axis and arranged in said longitudinal recess and movably mounted relative to said longitudinal recess such that said rod remains in contact with the medical implant when the medical implant is disposed in said shell and while said shell with said first and second parts is withdrawn in the longitudinal direction to release the medical implant from said shell; and an operating member mounted to an end of said core opposite said shell, said operating member being rotatably configured about the longitudinal axis extending in the longitudinal direction from an initial first position into a second position, wherein said shell is in the unlocked configuration when said operating member is in the second position.

2. The implantation tool according to claim 1 , wherein, for releasing the medical implant from said shell, said core is configured for movement relative to said rod along said longitudinal axis, wherein said rod slides into said compartment for maintaining the contact with the medical implant, wherein the medical implant is kept in one position by said rod, and wherein the medical implant is released from said compartment of said shell.

3. The implantation tool according to claim 1 , wherein said shell is formed with a first slot.

4. The implantation tool according to claim 3 , wherein said shell is formed with a second slot opposite said first slot.

5. The implantation tool according to claim 4 , wherein said first and second slots are disposed to segment said shell into said first part and said second part.

6. The implantation tool according to claim 5 , wherein said first part of said shell is configured for movement along said longitudinal axis with respect to said second part of said shell to transform the locked configuration of said two parts, in which said two parts cannot be deflected from each other and said slots remain closed, into the unlocked configuration of said two parts, in which said two parts are movable away from each other so as to open said compartment at said slots for releasing the medical implant from said shell.

7. The implantation tool according to claim 6 , wherein each of said first and second parts of said shell are formed with a latching member at the respective said slot, wherein each latching member of said first part of said shell engages with an associated latching member of said second part of said shell when said first and second parts are in said locked configuration, and wherein said latching members of said first part of said shell are disengaged from said latching members of said second part of said shell when said first and second parts of said shell are in said unlocked configuration.

8. The implantation tool according to claim 1 , wherein said shell is formed with a single slot on a top side of said shell, said single slot extending from a window formed into a top side of said shell towards a tip of said shell, and wherein the medical implant is visible through said window when the medical implant is disposed in said compartment defined by said shell.

9. The implantation tool according to claim 8 , wherein:
said slot divides a section of said top side of said shell into said first part and said second part;
said first part and said second part each has at least one latching member at said slot;
each latching member of said first part of said shell engages with an associated latching member of said second part of the shell when said first and second parts are in the locked configuration, in which said first and second parts cannot be deflected from each other and said slot remains closed; and
said latching members of said first part are disengaged from said latching members of said second part of said shell, when said first and second parts of said shell are in the unlocked configuration, in which said first and second parts of said shell can be deflected away from each other so as to open said slot for releasing the medical implant from said shell.

10. The implantation tool according claim 1 , wherein said rod is connected to a grip member that encompasses said core, and wherein said grip member can be held fixed and said core can slide in said grip member for sliding said rod into said compartment of said shell.

11. The implantation tool according to claim 1 , wherein said operating member is formed with a knob arranged outside said longitudinal recess, wherein a protrusion of said operating member protrudes from said knob along the longitudinal axis, and wherein said protrusion is arranged in said longitudinal recess of said core.

12. The implantation tool according to claim 11 , further comprising a grip member, wherein in a first position of said operating member said grip member is locked by said operating member when said grip member is arranged adjacent said operating member, so that said rod is movable with respect to said core, and wherein in a second position of said operating member said grip member is unlocked with respect to said core so that said core is slideable in said grip member for sliding said rod into said compartment of said shell.

13. The implantation tool according to claim 11 , wherein said operating member comprises a pin protruding in a circumferential direction of core from said protrusion, wherein said pin engages with a slot formed in said a grip member, when said grip member is arranged adjacent said operating member and said operating member is arranged in its first position, and wherein said pin disengages with said slot of said grip member when said operating member is rotated into the second position so that said grip member is unlocked with respect to said core and said core is slideable in said grip member for sliding said rod into said compartment of said shell.

14. The implantation tool according to claim 11 , wherein, in a first position of said operating member, said first and second parts of said shell are maintained by said operating member in the locked configuration, and wherein, upon rotation of said operating member into the second position of said operating member, said operating member transforms the locked configuration into the unlocked configuration of said first and second parts of said shell.

15. The implantation tool according to claim 14 , wherein the protrusion of said operating member comprises a free end, wherein said free end butts against a stop formed on a first part of said shell when said operating member is arranged in the first position, so as to prevent a movement of said first part of said shell with respect to said second part of said shell along the longitudinal direction so that the first and second parts of said shell are maintained in the locked configuration, and wherein

Assignees

• Biotronik Se & Co Kg

Inventors

• Austin Eric
• Kraetschmer Hannes
• Wittenbrock Stevan
• Baker Daniel R
• Jensen Christopher J

Classifications

• A61B2017/320056

  Tunnelers · CPC title

• A61B17/3468 Primary

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

• A61B2560/063

  Devices specially adapted for delivering implantable medical measuring apparatus · CPC title

• A61B5/283

  Invasive · CPC title