# US 10,945,808 B2 · Cleaning systems for reprocessing surgical instruments

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- Number: US 10,945,808 B2
- Document ID: US10945808B2
- Status: Granted
- Kind: B2
- Application number: 15/959,747
- Filed: 2018-04-23
- Published: 2019-10-24
- Granted: 2021-03-16
- Earliest claimed: 2018-04-23
- Assignees: Covidien LP
- Applicants: Covidien LP
- Inventors: Jessica E. C. Olson; James D. Allen, IV; Stephen J. Stamm; Purvishkumar H. Soni; Alyssa M. Sawyer
- Web page: https://patentgrep.com/patent/US10945808B2

## CPC

- A61B 90/70: Cleaning devices specially adapted for surgical instruments
- A61B 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod}
- B08B 3/04: Cleaning involving contact with liquid
- A61B 17/32: Surgical cutting instruments ({A61B18/042 takes precedence; suture cutters A61B17/0467;} implements for ligaturing and cutting {A61B17/122, A61B17/12; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133})
- A61B 2018/1455: {having a moving blade for cutting tissue grasped by the jaws}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

## Abstract

A cleaning fixture for a surgical instrument includes a handle receiving portion configured to receive a housing of a surgical instrument, a shaft receiving portion configured to receive a shaft and an end effector assembly of the surgical instrument, and a knife actuation assembly movably coupled to the handle receiving portion or the shaft receiving portion. The shaft receiving portion extends distally of the handle receiving portion. The knife actuation assembly is configured to selectively actuate a knife trigger assembly of the surgical instrument to advance a knife of the surgical instrument between jaw members of the end effector assembly thereof.

## Claims

### Claim 1

A cleaning fixture for a surgical instrument, the cleaning fixture comprising:
a handle receiving portion configured to receive a housing of a surgical instrument;
a shaft receiving portion extending distally of the handle receiving portion and configured to receive a shaft and an end effector assembly of the surgical instrument, the shaft receiving portion including an elongate muzzle defining a longitudinal axis and a lumen configured to house the shaft and the end effector assembly of the surgical instrument;
a knife actuation assembly movably coupled to the handle receiving portion or the shaft receiving portion, wherein the knife actuation assembly is configured to selectively actuate a knife trigger assembly of the surgical instrument to advance a knife of the surgical instrument between jaw members of the end effector assembly thereof; and
a jaw-prop mechanism movably coupled to a distal end portion of the elongate muzzle, the jaw-prop mechanism including a foot disposed in the lumen of the elongate muzzle and configured to maintain the end effector assembly of the surgical instrument in an open position.

### Claim 2 (depends on 1)

The cleaning fixture according to claim 1, wherein the knife actuation assembly includes a lever protruding into the handle receiving portion, the lever being movable relative to the handle receiving portion to actuate the knife trigger assembly of the surgical instrument.

### Claim 3 (depends on 2)

The cleaning fixture according to claim 2, wherein the lever has a proximal end configured to contact the knife trigger assembly of the surgical instrument.

### Claim 4 (depends on 1)

The cleaning fixture according to claim 1, wherein the handle receiving portion is releasably securable with the shaft receiving portion to enclose the surgical instrument therein.

### Claim 5 (depends on 1)

The cleaning fixture according to claim 1, wherein the shaft receiving portion further includes a proximal section releasably coupled to a distal section of the handle receiving portion, the elongate muzzle extending distally from the proximal section.

### Claim 6 (depends on 1)

The cleaning fixture according to claim 1, wherein the shaft receiving portion defines an opening disposed towards a distal end portion of the elongate muzzle, such that the opening is positioned adjacent the end effector assembly of the surgical instrument upon receipt of the shaft and end effector assembly of the surgical instrument within the shaft receiving portion.

### Claim 7 (depends on 6)

The cleaning fixture according to claim 6, wherein the opening is configured to facilitate the passage of a cleaning fluid proximally through the elongate muzzle to flush the lumen thereof.

### Claim 8 (depends on 6)

The cleaning fixture according to claim 6, wherein the opening is configured to facilitate the passage of a cleaning fluid proximally towards the knife of the surgical instrument while the knife actuation assembly is actuated.

### Claim 9 (depends on 1)

The cleaning fixture according to claim 1, further comprising a lever activation assembly movably coupled to the handle receiving portion or the shaft receiving portion, wherein the lever activation assembly is configured to selectively actuate a handle assembly of the surgical instrument.

### Claim 10 (depends on 9)

The cleaning fixture according to claim 9, wherein the knife actuation assembly is disposed between an elongate muzzle of the shaft receiving portion and the lever activation assembly.