# US 11,439,833 B2 · Implant-delivery tool

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- Number: US 11,439,833 B2
- Document ID: US11439833B2
- Status: Granted
- Kind: B2
- Application number: 16/934,692
- Filed: 2020-07-21
- Published: 2020-11-05
- Granted: 2022-09-13
- Earliest claimed: 2016-11-23
- Assignees: Bluewind Medical Ltd.
- Applicants: Bluewind Medical Ltd.
- Inventors: Gur Oron; Bar Eytan; Nir Armony; Eran Benjamin; Jimy Pesin
- Web page: https://patentgrep.com/patent/US11439833B2

## CPC

- A61N 1/375: Constructional arrangements, e.g. casings
- A61B 17/3468: {for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069)}
- A61N 1/0558: {Anchoring or fixation means therefor}
- A61N 1/37205: {Microstimulators, e.g. implantable through a cannula}
- A61B 2017/3454: {Details of tips}
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Apparatus is provided for facilitating percutaneous delivery of an implant to a target site of a body of a subject. The apparatus includes a delivery tool that includes a needle that defines a lumen through which the implant passes. The needle has a proximal end and a distal end, and defines a triple-grind bevel at the distal end. The triple-grind bevel defines a primary grind and two side-grinds. The side-grinds do not extend to meet each other to define a point at a distal-most part of the needle. Other embodiments are also described.

## Claims

### Claim 1

Apparatus for facilitating percutaneous delivery of an implant to a target site of a body of a subject, the apparatus comprising a delivery tool, the delivery tool comprising a needle, the needle comprising:
a distal end; and
a proximal end,
the needle defining:
a lumen configured to facilitate passage of the implant therethrough,
lateral openings in a wall of the needle, the openings being proximal from the distal end of the needle, and
a triple-grind bevel at the distal end of the needle, the triple-grind bevel defining:
a primary grind, and
two side-grinds that do not extend to meet each other to define a point at a distal-most part of the needle.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein the two side-grinds converge distally at an angle of 65-85 degrees to each other.

### Claim 3

A system comprising the apparatus according to 1, further comprising the implant.

### Claim 4 (depends on 1)

The apparatus according to claim 1, wherein the side-grinds converge distally, but at the distal-most part of the needle, the side-grinds are spaced apart by 0.1-0.4 mm.

### Claim 5 (depends on 1)

A system comprising the apparatus according to claim 1, the system further comprising the implant, the implant comprising an antenna, and
the delivery tool being configured to define:
a first state, in which the implant is housed within the lumen of the needle such that the antenna is disposed proximally from the lateral openings,
a second state, in which a distal portion of the implant is exposed from a distal end of the needle, and the antenna is aligned with the lateral openings, and
a third state, in which the implant is entirely disposed outside of the distal end of the needle.

### Claim 6 (depends on 5)

The system according to claim 5, wherein in the first state, the entire implant is disposed within the needle.

### Claim 7 (depends on 5)

The system according to claim 5, wherein in the first state, the entire implant is disposed proximally from the lateral openings.

### Claim 8 (depends on 5)

The system according to claim 5, wherein in the first state, the distal portion of the implant is aligned with the lateral openings.

### Claim 9 (depends on 5)

The system according to claim 5, wherein:
the implant is an electrostimulator implant, and comprises:
an implant body, the implant being injectable into tissue of the subject along a longitudinal axis of the implant body, the antenna disposed within the implant body;
a proximal electrode disposed on the implant body, and
a distal electrode disposed on the implant body distally from the proximal electrode, and
in the second state of the delivery tool, the distal electrode is exposed from the distal end of the needle.

### Claim 10 (depends on 9)

The system according to claim 9, wherein in the first state of the delivery tool, the proximal electrode and the distal electrode are disposed within the needle.

### Claim 11 (depends on 9)

The system according to claim 9, wherein:
the implant body has a recessed longitudinal portion that is radially recessed with respect to another longitudinal portion of the implant body, such that an outer diameter of the recessed longitudinal portion is less than the outer diameter of the other longitudinal portion,
the antenna is disposed in the recessed longitudinal portion, and
the distal electrode is disposed on the other longitudinal portion.

### Claim 12 (depends on 11)

The system according to claim 11, wherein the recessed longitudinal portion is configured to facilitate reception of a wireless signal, by the antenna, while the delivery tool is in the second state and while the delivery tool is in the third state.

### Claim 13 (depends on 5)

The system according to claim 5, wherein the antenna is configured to receive energy wirelessly.

### Claim 14

Apparatus for facilitating percutaneous delivery of an implant to a target site of a body of a subject, the apparatus comprising a delivery tool, the delivery tool comprising a needle, the needle comprising:
a distal end; and
a proximal end,
the needle defining:
a lumen configured to facilitate passage of the implant therethrough, and
a triple-grind bevel at the distal end of the needle, the triple-grind bevel defining:
a primary grind, and
two side-grinds that converge distally, but at the distal-most part of the needle, are spaced apart by 0.1-0.4 mm.

### Claim 15 (depends on 14)

A system comprising the apparatus according to claim 14, the system further comprising the implant, the implant comprising an antenna, wherein:
the needle defines lateral openings in a wall of the needle, the openings being proximal from the distal end of the needle; and
the delivery tool is configured to define:
a first state, in which the implant is housed within the lumen of the needle such that the antenna is disposed proximally from the lateral openings,
a second state, in which a distal portion of the implant is exposed from a distal end of the needle, and the antenna is aligned with the lateral openings, and
a third state, in which the implant is entirely disposed outside of the distal end of the needle.

### Claim 16 (depends on 15)

The system according to claim 15, wherein in the first state, the entire implant is disposed within the needle.

### Claim 17 (depends on 15)

The system according to claim 15, wherein in the first state, the entire implant is disposed proximally from the lateral openings.

### Claim 18 (depends on 15)

The system according to claim 15, wherein in the first state, the distal portion of the implant is aligned with the lateral openings.

### Claim 19

Apparatus for facilitating percutaneous delivery of an implant to a target site of a body of a subject, the apparatus comprising a delivery tool, the delivery tool comprising a needle, the needle comprising:
a distal end; and
a proximal end,
the needle defining:
a lumen configured to facilitate passage of the implant therethrough, and
a triple-grind bevel at the distal end of the needle, the triple-grind bevel defining:
a primary grind, and
two side-grinds that:
converge distally at an angle of 65-85 degrees to each other, and
do not extend to meet each other to define a point at a distal-most part of the needle.

### Claim 20 (depends on 19)

A system comprising the apparatus according to claim 19, the system further comprising the implant, the implant comprising an antenna, wherein:
the needle defines lateral openings in a wall of the needle, the openings being proximal from the distal end of the needle; and
the delivery tool is configured to define:
a first state, in which the implant is housed within the lumen of the needle such that the antenna is disposed proximally from the lateral openings,
a second state, in which a distal portion of the implant is exposed from a distal end of the needle, and the antenna is aligned with the lateral openings, and
a third state, in which the implant is entirely disposed outside of the distal end of the needle.