# US 11,896,730 B1 · Reprocessing a single-use medical device

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- Number: US 11,896,730 B1
- Document ID: US11896730B1
- Status: Granted
- Kind: B1
- Application number: 18/491,553
- Filed: 2023-10-20
- Granted: 2024-02-13
- Earliest claimed: 2022-10-20
- Assignees: Innovative Health
- Applicants: Innovative Health
- Inventors: Blessan C. Joseph; Rafal Chudzik; Haley C. Ellis
- Web page: https://patentgrep.com/patent/US11896730B1

## CPC

- A61L 2/186: Peroxide solutions
- B08B 1/143: {Wipes}
- B08B 3/08: the liquid having chemical or dissolving effect
- B08B 7/028: {Using ultrasounds}
- B08B 7/04: by a combination of operations
- A61L 2/22: Phase substances, e.g. smokes or aerosols
- A61L 2103/15: Laboratory, medical or dentistry appliances, e.g. catheters or sharps
- A61L 2202/15: Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
- A61L 2202/17: Combination with washing or cleaning means
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

## Abstract

The present invention provides a method for reprocessing single-use medical devices. The method can include removing a coating from a single-use medical device, validating the removal of the coating, cleaning the single-use medical device, and applying a new coating to the single-use medical device.

## Claims

### Claim 1

A method for reprocessing a single-use medical device comprising:
a) removing one or more coatings on a surface of the single-use medical device by contacting the one or more coatings on the surface of a single-use medical device to denatured ethyl alcohol, wherein the denatured ethyl alcohol removes the one or more coatings;
b) validating the surface of the single-use medical device for the coating removal by visually inspecting the single-use medical device for any residual coating or using other detection methods; and
c) preparing the surface of the single-use medical device for coating to form a prepared surface on the single-use medical device, wherein preparing the surface of the single-use medical device comprises:
i. contacting the single-use medical device to a hydrogen peroxide solution or an enzymatic solution;
ii. rinsing the single-use medical device with water; and
iii. drying the single-use medical device.

### Claim 2 (depends on 1)

The method of claim 1, wherein an ultrasonic frequency is provided to the single-use medical device contacting the hydrogen peroxide solution or enzymatic solution.

### Claim 3 (depends on 2)

The method of claim 2, wherein the ultrasonic frequency is provided for about 5 minutes to about 30 minutes at a frequency of about 20 Hz to about 40 Hz.

### Claim 4 (depends on 1)

The method of claim 1, wherein contacting the one or more coatings with denatured ethyl alcohol comprises wiping the one or more coatings seven times with a polyester wipe containing denatured ethyl alcohol.

### Claim 5 (depends on 1)

The method of claim 1, wherein contacting the one or more coatings with denatured ethyl alcohol comprises soaking the single-use medical device in a tank filled with denatured ethyl alcohol for about 5 minutes to about 1 hour and then wiping the one or more coatings off the surface of the single-use medical device using a polyester wipe or rag.

### Claim 6 (depends on 1)

The method of claim 1, wherein validating the surface of the single-use medical device for the coating removal further comprises a light detection method, a fluid detection method, a magnification method, a dye method, an artificial intelligence method, a scanning electron microscope method, a differential scanning calorimetry method, or any combination thereof.

### Claim 7 (depends on 1)

The method of claim 1, wherein the one or more coatings comprise hydrophilic coatings.

### Claim 8 (depends on 1)

The method of claim 1, wherein the method further comprises wiping a luer and a strain relief the single-use medical device with a polyester wipe containing 3% hydrogen peroxide solution.

### Claim 9 (depends on 1)

The method of claim 1, wherein the water used to rinse the single-use medical device has a temperature of about 15 degrees C. to about 30 degrees C.

### Claim 10 (depends on 1)

The method of claim 1, wherein drying the single-use medical device comprises applying a temperature of about 50 degrees C. to about 150 degrees C.

### Claim 11 (depends on 1)

The method of claim 1, wherein drying the single-use medical device comprises wiping the single-use medical device 10 times with a dry polyester wipe.

### Claim 12 (depends on 1)

The method of claim 1, the method further comprising validating the prepared surface using visual inspection to ensure the prepared surface is ready for a new coating to be applied.

### Claim 13 (depends on 12)

The method of claim 12, the method further comprising sterilizing the single-use medical device.

### Claim 14 (depends on 1)

The method of claim 1, the method further comprising:
a) applying one or more new coatings to the single-use medical device; and
b) validating the one or more new coatings on the single-use medical device.

### Claim 15 (depends on 1)

The method of claim 1, wherein removing the one or more coatings further comprises mechanically removing the one or more coatings, chemically removing the one or more coatings, environmentally removing the one or more coatings, or any combination thereof.

### Claim 16 (depends on 15)

The method of claim 15, wherein mechanically removing the one or more coatings comprises an ultrasonic removal method, a high-pressure water jet removal method, a bead blasting method, a laser removal method, or a combination thereof.

### Claim 17 (depends on 15)

The method of claim 15, wherein chemically removing the one or more coatings comprises providing an electrostatic charge to the one or more coatings, providing an acidic solution to the one or more coatings, providing a basic solution to the one or more coatings, or combinations thereof.

### Claim 18 (depends on 15)

The method of claim 15, wherein environmentally removing the one or more coatings comprises heating the one or more coatings to a temperature above a melting point of the one or more coatings, cooling the one or more coatings to freeze the one or more coatings, or placing the one or more coatings in a vacuum chamber.

### Claim 19 (depends on 1)

The method of claim 1, wherein the one or more coatings have a thickness of about 5.0 μm to about 250 μm.

### Claim 20 (depends on 1)

The method of claim 1, wherein the single-use medical device has been used in a patient prior to removing the one or more coatings.
