# US 11,432,837 B2 · Multifunctional surgical instrument

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- Number: US 11,432,837 B2
- Document ID: US11432837B2
- Status: Granted
- Kind: B2
- Application number: 16/576,287
- Filed: 2019-09-19
- Published: 2020-04-16
- Granted: 2022-09-06
- Earliest claimed: 2018-09-21
- Applicants: Christopher Armstrong
- Inventors: Christopher Armstrong
- Web page: https://patentgrep.com/patent/US11432837B2

## CPC

- A61B 17/2909: {Handles}
- A61B 34/70: {Manipulators specially adapted for use in surgery}
- A61B 2017/00327: {with actuating members moving in opposite directions}
- A61B 2017/0046: {with a releasable handle; with handle and operating part separable}
- A61B 2017/00464: {for use with different instruments}
- A61B 2017/2903: {transferring rotary motion}
- A61B 2017/291: {the position of the handle being adjustable with respect to the shaft}
- A61B 2017/2923: {Toothed members, e.g. rack and pinion}
- A61B 2017/2926: {Details of heads or jaws}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A surgical instrument system includes a main body having a handle and a drive assembly. The drive assembly includes a plurality of gears and rotation transfer mechanisms for translating the movements of the handle into a mechanical force. A surgical tool having a tool body, an elongated shaft and an effector assembly is removably engaged to the main body of the system. The tool body houses a transfer gear assembly for engaging the drive assembly. A plurality of control wires extends from the transfer gear assembly to the effector assembly. The effector assembly includes a frame member having a pair of arms positioned along the distal end. The arms functioning to selectively open, close and move omnidirectionally based on an input of the handle.

## Claims

### Claim 1

A surgical instrument system, comprising:
a main body having a plurality of surfaces that define an interior space;
a drive assembly that is positioned within the interior space;
a handle that is in communication with the drive assembly and extends out of the main body; and
a tool that includes,
a tool body having a first end, a second end and an interior space,
a transfer gear assembly that is positioned within the interior space of the tool body, said transfer gear assembly being configured to selectively engage the drive assembly,
an elongated shaft having a first end that is in communication with the tool body, and a second end, and
an effector assembly that is positioned along the second end of the elongated shaft, said effector assembly including a pair of movable arms that are configured to move omnidirectionally in response to a movement of the handle; and
wherein the handle comprises two handle segments that extend outward from a major axis of the elongated shaft; and
wherein a twisting/horizontal rotation of the two handle segments relative to the main body.

### Claim 2 (depends on 1)

The system of claim 1, wherein the effector assembly comprises:
a frame having a first end that is connected to the elongated shaft; and
wherein the pair of movable arms are positioned along a second end of the frame.

### Claim 3 (depends on 2)

The system of claim 2, wherein the arms are configured to selectively open and close in response to a movement of the handle.

### Claim 4 (depends on 1)

The system of claim 1, wherein the tool is removably positioned onto the main body.

### Claim 5 (depends on 1)

The system of claim 1, wherein the main body includes an opening along a front end.

### Claim 6 (depends on 5)

The system of claim 5 wherein the tool body includes a shape and size that is complementary to the opening of the main body.

### Claim 7 (depends on 6)

The system of claim 6, wherein the tool body is removably positioned within the opening of the main body.

### Claim 8 (depends on 1)

The system of claim 1, wherein the tool body, the elongated shaft and the effector assembly are constructed from surgical grade steel.

### Claim 9 (depends on 1)

The system of claim 1, wherein said move omnidirectionally includes each of a pitch movement of each of the pair of moveable arms, and a yaw movement of each of the pair of moveable arms.

### Claim 10 (depends on 1)

The system of claim 1, wherein a first movement of the handle results in a corresponding pitch movement of the pair of moveable arms in a first direction.

### Claim 11 (depends on 10)

The system of claim 10, wherein a second movement of the handle results in a corresponding pitch movement of the pair of moveable arms in a second direction.

### Claim 12 (depends on 11)

The system of claim 11, wherein said first movement of the handle is opposite to said second movement of the handle, and said first direction is opposite to said second direction.

### Claim 13 (depends on 11)

The system of claim 11, wherein a third movement of the handle results in a corresponding yaw movement of the pair of moveable arms in a third direction.

### Claim 14 (depends on 13)

The system of claim 13, wherein a fourth movement of the handle results in a corresponding yaw movement of the pair of moveable arms in a fifth direction.

### Claim 15 (depends on 13)

The system of claim 13, wherein said third movement of the handle is opposite to said fourth movement of the handle, and said fourth direction is opposite to said fifth direction.

### Claim 16 (depends on 1)

The system of claim 1, wherein a portion of the main body is configured to move relative to another portion of the main body in response to the movement of the handle.