Granted Patent B2

US 12,562,591 · App. 17/598,072 · Granted Feb 24, 2026

Inventors: Robert E. Lynch (Portage, MI); Daniel Reichert (Climax, MI); Patrick Hooper (Portage, MI); Gerard Mouatt (Portage, MI); Burton C. Judson (Kalamazoo, MI); David E. Hershberger (Kalamazoo, MI)

Assignee: Stryker Corporation

H02J50/005A61L2/07A61L2/202A61L2/206A61L2/208A61L2/26H02J7/0045H02J50/10A61L2202/122A61L2202/14

Abstract

Claims (19)

1 . A system for sterilizing a wirelessly chargeable battery, the system comprising:

a wirelessly chargeable battery comprising a bottom surface; and

a container configured to receive the wirelessly chargeable battery and configured to be placed on a charging module adapted to transfer power to the wirelessly chargeable battery for charging the wirelessly chargeable battery when the wirelessly chargeable battery is received by the container, the container comprising:

a lid, the lid comprising a mount configured to receive a filter defining a microbial barrier; and

a base comprising a polymeric material permitting transmission of an electromagnetic wave therethrough and having a glass transition temperature above 140 degrees Celsius, the base defining a receptacle being shaped to receive a wirelessly chargeable battery, wherein one of the lid and the base defining a plurality of apertures configured to allow a sterilant to permeate the lid or base;

wherein the receptacle comprises a floor and a standoff extending from the floor such that the wirelessly chargeable battery received by the receptacle is disposed on the standoff and the bottom surface of the wirelessly chargeable battery is spaced from the floor to allow circulation of a sterilant underneath the wirelessly chargeable battery such that a majority of the bottom surface is exposed to the sterilant, the floor having a textured surface exhibiting a water contact angle of less than 45 degrees, and

wherein a height of the standoff is no greater than 4 millimeters such that:

the height of the standoff prevents a water droplet disposed on the floor of the receptacle from contacting the bottom surface of the wirelessly chargeable battery, and

the height of the standoff permits transmission of electromagnetic waves from the charging module to the wirelessly chargeable battery with an efficiency greater than 50%.

2 . The system of claim 1 , comprising at least three standoffs, the bottom surface of the wirelessly chargeable battery contacting the at least three standoffs when the wirelessly chargeable battery is received by the receptacle.

3 . The system of claim 1 , wherein the majority of the bottom surface comprises at least 50% of the bottom surface.

4 . The system of claim 1 , wherein the majority of the bottom surface comprises at least 75% of the bottom surface.

5 . The system of claim 1 , wherein the majority of the bottom surface comprises at least 90% of the bottom surface.

6 . The system of claim 1 , wherein the lid comprises metal having a thermal conductivity greater than 1 W/(m*K) at 298 Kelvin such that the lid is configured to retain heat to facilitate drying of contents thereof after the container is removed from a sterilizer.

7 . The system of claim 1 , wherein the lid comprises a thermal conductivity of greater than 10 W/(m*K) at 298 Kelvin.

8 . The system of claim 1 , wherein the height of the standoff is selected to allow sterilant to contact the bottom surface of the wirelessly chargeable battery.

9 . The system of claim 1 , wherein the standoff is integrally formed with the receptacle.

10 . The system of claim 1 , wherein the textured surface comprises a roughness profile comprising an arithmetical mean height (Ra) greater than 2 micrometers and less than 4 micrometers.

11 . The system of claim 1 , wherein the textured surface comprises a roughness profile comprising a maximum height (Rz) greater than 20 micrometers and less than 30 micrometers.

Assignments (2)

Continuity (3)

References Cited (158)