# US 12,763,596 B2 · Electronic power system with modular sealed enclosure

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- Number: US 12,763,596 B2
- Document ID: US12763596B2
- Status: Granted
- Kind: B2
- Application number: 18/659,244
- Filed: 2024-05-09
- Published: 2025-11-13
- Granted: 2026-10-13
- Earliest claimed: 2024-05-09
- Assignees: Cilag GmbH International
- Applicants: Cilag GmbH International
- Inventors: Frederick E. Shelton, IV; Shane R. Adams
- Web page: https://patentgrep.com/patent/US12763596B2

## CPC

- H02J 7/855: {with circuits adapted for supplying loads from the battery}
- H02P 23/00: Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- A61B 17/068: Surgical staplers {, e.g. containing multiple staples or clamps}({staplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105;} for performing anastomosis A61B17/115; {staplers in general B25C5/00})
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The disclosed technology includes a sterilizable powered electronics system for a surgical instrument that includes a boost regulator circuit, an ultracapacitor, and a sealed enclosure. The boost regulator circuit is configured to electrically connect to one or more batteries and output at least one of a predetermined voltage or a predetermined current. The ultracapacitor is electrically connected to the boost regulator circuit. The sealed enclosure encloses the boost regulator circuit and is configured to withstand temperatures greater than 50° C. and pressures greater than 15 psi. At least one of the boost regulator circuit or the ultracapacitor can be configured to be electrically connected to an instrument motor.

## Claims

### Claim 1

A sterilizable powered electronics system for a surgical instrument, comprising:
a boost regulator circuit configured to electrically connect to one or more batteries and configured to output at least one of a predetermined voltage or a predetermined current;
an ultracapacitor electrically connected to the boost regulator circuit; and
a sealed enclosure configured to withstand temperatures greater than 50° C. and pressures greater than 15 psi, and enclosing the boost regulator circuit and the ultracapacitor, wherein the sealed enclosure is configured to prevent ingress of moisture into the sealed enclosure during a steam sterilization process, wherein the sealed enclosure comprises at least one of an ultrasonic seal or a gasket seal,
wherein at least one of the boost regulator circuit or the ultracapacitor is configured to be electrically connected to an instrument motor.

### Claim 2 (depends on 1)

The system of claim 1, wherein the surgical instrument comprises the instrument motor configured to be electrically connected to the boost regulator circuit and the ultracapacitor.

### Claim 3 (depends on 1)

The system of claim 1, wherein each of the one or more batteries are configured to be sterilized via a gamma sterilization process prior to insertion into the sealed enclosure.

### Claim 4 (depends on 1)

The system of claim 1, wherein each of the one or more batteries is configured to output a maximum current of 5 amperes (A) to the boost regulator circuit.

### Claim 5 (depends on 4)

The system of claim 4, wherein each of the one or more batteries is further configured to output an approximate voltage of 3.1V while outputting the maximum current.

### Claim 6 (depends on 1)

The system claim 1, wherein each of the one or more batteries is a disposable CR123a battery.

### Claim 7 (depends on 1)

The system of claim 1, wherein the ultrasonic seal is further configured to maintain an internal temperature within the sealed enclosure less than that of an external temperature exterior the sealed enclosure during the steam sterilization process.

### Claim 8 (depends on 1)

The system of claim 1, wherein the gasket seal is further configured to maintain an internal temperature within the sealed enclosure that is less than that of an external temperature exterior the sealed enclosure during the steam sterilization process.

### Claim 9 (depends on 1)

The system claim 1, wherein the ultracapacitor is configured to store the predetermined voltage and the predetermined current from the boost regulator circuit as electric potential energy for the surgical instrument while not in use.

### Claim 10 (depends on 9)

The system of claim 9, wherein the ultracapacitor is further configured to disperse the electric potential energy to provide power to the surgical instrument while in use.

### Claim 11 (depends on 1)

The system claim 1, wherein the sealed enclosure further comprises a thermal mass member configured to absorb thermal energy generated from the ultracapacitor.

### Claim 12 (depends on 11)

The system of claim 11, wherein the thermal mass member-is a ceramic plate.

### Claim 13 (depends on 1)

The system of claim 1, wherein the sealed enclosure is a three dimensional printed enclosure.

### Claim 14 (depends on 1)

The system of claim 1, wherein the sealed enclosure is further configured to withstand a temperature range of approximately 121° C.-132° C.

### Claim 15

A sterilizable powered electronics system for a surgical instrument, comprising:
a boost regulator circuit configured to electrically connect to one or more batteries and configured to output at least one of a predetermined voltage or a predetermined current,
an ultracapacitor electrically connected to the boost regulator circuit, and
a sealed enclosure configured to withstand temperatures greater than 50° C. and pressures greater than 15 psi, and enclosing the boost regulator circuit and the ultracapacitor, wherein the sealed enclosure is further configured to withstand a pressure range of approximately 15-30 psi,
wherein at least one of the boost regulator circuit or the ultracapacitor is configured to be electrically connected to an instrument motor.

### Claim 16 (depends on 15)

The system of claim 15 wherein the sealed enclosure is further configured to withstand a pressure of 30 psi greater than 3 minutes.

### Claim 17 (depends on 15)

The system of claim 15, wherein the sealed enclosure is further configured to withstand a pressure of 15 psi for at least 15 minutes.

### Claim 18

A sterilizable powered electronics system for a surgical instrument, comprising:
a boost regulator circuit configured to electrically connect to one or more batteries and configured to output at least one of a predetermined voltage or a predetermined current,
an ultracapacitor electrically connected to the boost regulator circuit, wherein the ultracapacitor comprises one or more capacitor cells electrically connected in parallel with one or more resistors, the ultracapacitor electrically connected in series with the boost regulator circuit, and
a sealed enclosure configured to withstand temperatures greater than 50° C. and pressures greater than 15 psi, and enclosing the boost regulator circuit and the ultracapacitor,
wherein at least one of the boost regulator circuit or the ultracapacitor is configured to be electrically connected to an instrument motor.
