# US 11,432,828 B1 · Controls for power tools or instruments including bone saws and drills including safety and directional control and haptic feedback

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- Number: US 11,432,828 B1
- Document ID: US11432828B1
- Status: Granted
- Kind: B1
- Application number: 16/937,135
- Filed: 2020-07-23
- Granted: 2022-09-06
- Earliest claimed: 2019-07-23
- Assignees: OnPoint Medical, Inc.
- Applicants: OnPoint Medical Inc.
- Inventors: Philipp K. Lang
- Web page: https://patentgrep.com/patent/US11432828B1

## CPC

- A61B 17/1622: {Drill handpieces (A61B17/1626, A61B17/1628 take precedence)}
- A61B 17/1626: {Control means; Display units}
- A61B 17/14: Surgical saws ({A61B17/1637 takes precedence;} dental saws for teeth A61C3/12)
- A61B 17/142: {with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades}
- A61B 17/1628: {Motors; Power supplies}
- A61B 17/92: Impactors or extractors, e.g. for removing intramedullary devices {(insertion or extraction of artificial joints A61F2/4603)}
- A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B 90/39: {Markers, e.g. radio-opaque or breast lesions markers}
- G16H 20/40: relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
- G16H 30/40: for processing medical images, e.g. editing
- G16H 40/63: for local operation
- G16H 40/67: for remote operation
- G16H 50/50: for simulation or modelling of medical disorders
- G16H 70/20: relating to practices or guidelines
- A61B 2017/00203: {with speech control or speech recognition}
- A61B 2017/00207: {with hand gesture control or hand gesture recognition}
- A61B 2017/00216: {with eye tracking or head position tracking control}
- A61B 2017/00221: {with wireless transmission of data, e.g. by infrared radiation or radiowaves}
- A61B 2017/00694: {with means correcting for movement of or for synchronisation with the body}
- A61B 2017/00725: {Calibration or performance testing}
- A61B 2017/00734: {battery operated}
- A61B 2034/105: {Modelling of the patient, e.g. for ligaments or bones}
- A61B 2034/2048: {using an accelerometer or inertia sensor}
- A61B 2034/2055: {Optical tracking systems}
- A61B 2034/2057: {Details of tracking cameras}
- A61B 2034/2065: {Tracking using image or pattern recognition}
- A61B 2090/365: {augmented reality, i.e. correlating a live optical image with another image}
- A61B 2090/372: {Details of monitor hardware}
- A61B 2090/376: {using X-rays, e.g. fluoroscopy}
- A61B 2090/3762: {using computed tomography systems [CT]}
- A61B 2090/378: {using ultrasound}
- A61B 2090/3937: {Visible markers}
- A61B 2090/3945: {Active visible markers, e.g. light emitting diodes}
- A61B 2090/3966: {Radiopaque markers visible in an X-ray image}
- A61B 2090/397: {electromagnetic other than visible, e.g. microwave}
- A61B 2090/3979: {infrared}
- A61B 2090/3983: {Reference marker arrangements for use with image guided surgery}
- A61B 2090/502: {Headgear, e.g. helmet, spectacles}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

Aspects of the present disclosure relate to systems for performing a surgical procedure using a power tool or power instrument with systems, devices and/or control units for adjusting, regulating, interrupting, and/or restoring electric current to the power tool or instrument during operation, for example, when the power tool or instrument is at a predetermined distance to a boundary of a safe zone or a target volume of operation.

## Claims

### Claim 1

A handheld system to control a bone resection in a patient, the system comprising
a power tool or power instrument;
a battery; and
a control unit,
wherein the power tool or power instrument comprises a member, wherein the member comprises a first connecting mechanism configured to connect with the battery, wherein the battery comprises a second connecting mechanism configured to connect to the first connecting mechanism,
wherein the battery comprises a plurality of electrical contacts, wherein the power tool or power instrument comprises a plurality of electrical contacts,
wherein the plurality of electrical contacts of the battery and the plurality of electrical contacts of the power tool or power instrument are configured to facilitate flow of electrical current from the battery to the power tool or power instrument,
wherein the control unit is configured to be interposed between the member and the battery,
wherein the control unit comprises a third connecting mechanism configured to connect to the first connecting mechanism,
wherein the control unit comprises a fourth connecting mechanism configured to connect to the second connecting mechanism,
wherein the control unit comprises a plurality of electrical contacts configured to connect to the plurality of electrical contacts of the battery and the plurality of electrical contacts of the power tool or power instrument,
wherein the control unit comprises a wireless receiver, wherein the control unit is configured to adjust, regulate, interrupt or restore the electrical current flowing from the battery to the power tool or power instrument based on data received by the wireless receiver,
wherein the data is derived from tracking data, and
wherein the power tool or power instrument is configured to receive a tissue cutter.

### Claim 2 (depends on 1)

The system of claim 1, wherein the power tool or power instrument is a bone saw, a drill, or a reamer.

### Claim 3 (depends on 1)

The system of claim 1, wherein the power tool or power instrument comprises an electric or electromagnetic motor.

### Claim 4 (depends on 3)

The system of claim 3, wherein the electric or electromagnetic motor is integrated into or attached to the power tool or power instrument, wherein the power tool or power instrument is a power bone saw, a power drill, a power burr, or a power reamer.

### Claim 5 (depends on 1)

The system of claim 1, wherein the wireless receiver comprises at least one of a WiFi receiver, a LiFi receiver, and a Bluetooth receiver, or combinations thereof.

### Claim 6 (depends on 1)

The system of claim 1, the system comprising a tracking system, wherein the data received by the wireless receiver comprises data derived from the tracking system.

### Claim 7 (depends on 6)

The system of claim 6, wherein the tracking system comprises an outside in tracking system.

### Claim 8 (depends on 6)

The system of claim 6, wherein the tracking system comprises an inside out tracking system.

### Claim 9 (depends on 6)

The system of claim 6, wherein the tracking system comprises an optical tracking system comprising at least one of a video camera, a 3D scanner, and a laser scanner, or combinations thereof.

### Claim 10 (depends on 9)

The system of claim 9, wherein the optical tracking system is configured to track at least one optical marker.

### Claim 11 (depends on 10)

The system of claim 10, wherein the at least one optical marker comprises at least one geometric pattern.

### Claim 12 (depends on 6)

The system of claim 6, wherein the tracking system comprises a surgical navigation system.

### Claim 13 (depends on 12)

The system of claim 12, wherein the surgical navigation system is configured to measure at least one of infrared light and radiofrequency signal, or combinations thereof, or wherein the surgical navigation system is configured to detect at least one of an infrared marker and a radiofrequency marker, or combinations thereof.

### Claim 14 (depends on 1)

The system of claim 1, wherein the control unit is configured to reduce a speed of the power tool or power instrument when the tissue cutter is at a predetermined distance to a boundary of a safe zone or a boundary of a target volume of operation.

### Claim 15 (depends on 1)

The system of claim 1, wherein the control unit is configured to interrupt the flow of the electrical current from the battery to the power tool or power instrument when the tissue cutter is at a boundary of a safe zone or of a target volume of operation or is outside the safe zone or outside the target volume of operation.

### Claim 16 (depends on 1)

The system of claim 1, wherein the tissue cutter is a saw blade, a drill bit, a burr, or a reamer.

### Claim 17 (depends on 1)

The system of claim 1, wherein the control unit comprises a vibration sensor, a haptic actuator, or a vibration sensor and a haptic actuator.

### Claim 18 (depends on 17)

The system of claim 17, wherein the vibration sensor is configured to measure a vibration of the power tool or power instrument and wherein the haptic actuator is configured to generate an interference wave configured to reduce or eliminate the vibration of the power tool or power instrument when the power tool or power instrument is within a safe zone or a target volume of operation.

### Claim 19 (depends on 17)

The system of claim 17, wherein the vibration sensor is configured to measure a vibration of the power tool or power instrument, and wherein the haptic actuator is configured to generate a wave configured to increase or decrease the vibration of the power tool or power instrument depending on a position, an orientation, or a position and an orientation of the power tool or power instrument in relationship to a safe zone or a target volume of operation.

### Claim 20 (depends on 17)

The system of claim 17, wherein the vibration sensor is configured to measure a vibration of the power tool or power instrument, and wherein the haptic actuator is configured to generate a wave configured to increase the vibration of the power tool or power instrument when the power tool or power instrument is at a predetermined distance to the boundary of or is outside a safe zone or a target volume of operation.