Manifold for filtering medical waste being drawn under vacuum into a medical waste collection system

Patent metadata

Field	Value
Publication number	US-11234787-B1
Application number	US-202117194771-A
Country	US
Kind code	B1
Filing date	Mar 8, 2021
Priority date	Nov 20, 2020
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A method of method of manufacturing a surgical waste collection manifold with a volume collected datum and a rover type to ensure compatibility with a surgical waste collection rover is provided. The surgical waste collection rover including a vacuum pump and a receiver defining an opening. The method includes obtaining a second manifold. The second manifold having a second housing defining a surface, the housing defining a second manifold volume and a second outlet opening in fluid communication with the second manifold volume. The method may further include coupling a second circuit to the surface of the second manifold, the second circuit comprising a second memory device including a third memory bank and a fourth memory bank, the third memory bank including a fifth memory field and the fourth memory bank including a sixth memory field. The method may further include programming the fifth memory field with an encrypted first hash digest based on the rover type and programming the sixth memory field with an encrypted second hash digest based on the volume collected datum.

First claim

What is claimed is:

1. A method of harvesting an authentication procedure from a surgical waste collection unit, the surgical waste collection unit including a first container for holding medical waste, a vacuum pump in fluid communication with the first container, the vacuum pump configured to draw a vacuum on the first container, a receiver adjacent the first container, the receiver dimensioned to receive a manifold housing, a reader disposed adjacent the receiver, a first controller coupled to the reader and a second controller coupled to the first controller and the vacuum pump, the second controller comprising a first memory device, said method comprising:
obtaining a first manifold comprising a first housing defining a surface, the first housing defining a first manifold volume and a first outlet opening in fluid communication with the first manifold volume;
coupling a first circuit to the surface of the first housing, the first circuit comprising a second memory device including a first memory bank, the first memory bank including a first memory field and a second memory field;
extracting object code related to an authentication executable from the first memory device;
disassembling at least a portion of the extracted object code into a comprehensible form having a different convention from the object code;
identifying a fully compiled key call within the comprehensible form;
identifying a static key call within the comprehensible form;
identifying a first location for the fully compiled key call and a second location for the static key call;
determining an algorithm by which static key is incorporated into a fully compiled key based on the first location and the second location;
compiling an imitation key using the determined algorithm that includes a static key call;
encrypting a first hash digest based on a rover type stored in the second memory field using the imitation key; and
programming the first memory field with the encrypted first hash digest as an authentication signature to be read by the surgical waste collection unit to authenticate the first manifold.

2. The method of claim 1 , wherein the step of identifying the second location for the static key call is further defined as identifying the second location on the second memory device.

3. The method of claim 1 , wherein the step of identifying the second location for the static key call is further defined as identifying the second location on the first memory device.

4. The method of claim 1 , wherein the step of determining the algorithm includes determining a sequence of algorithmic steps used to generate a genuine authentication key based on the identified first location and the identified second location.

5. The method of claim 4 , wherein the step of determining the algorithm includes determining a sequence of a first data component and a second data component in the genuine authentication key based on a location of a call for the first data component and based on a location of a call for the second data component.

6. The method of claim 5 , wherein the step of determining the algorithm includes determining that the location for the first data component is a location on the second memory device.

7. The method of claim 5 , wherein the step of encrypting the first hash digest is further defined as encrypting the first hash digest and the first memory bank using the imitation key, and wherein the rover type is stored in the first memory field.

8. The method of claim 1 , wherein the step of identifying the first location for the fully compiled key call is further defined as identifying that the first location for the fully compiled key call is a location on the first memory device.

9. The method of claim 1 , wherein the step of identifying the first location for the fully compiled key call is further defined as identifying that the first location for the fully compiled key call is a location on the second memory device.

10. The method of claim 1 , wherein the second memory device further comprises a second memory bank, the second memory bank including a third memory field and a fourth memory field, the method further, identifying a third location for the fully compiled second key call, and determining a second algorithm by which the static key is incorporated into a fully compiled second key based on the second location and the third location, and compiling a second imitation key using the determined second algorithm that includes the static key call; and
encrypting a second hash digest based on the volume collected datum using the second imitation key; and
programming the third memory field of the second memory bank with the encrypted second hash digest.

Assignees

• Stryker Corp

Inventors

• Staats Andy
• Maclachlan Brian
• Westphal Grant
• Reasoner Stephen J

Classifications

• A61M2205/6018

  providing set-up signals for the apparatus configuration · CPC title

• A61M1/71

  Suction drainage systems (containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90) · CPC title

• A61M1/79

  Filters for solid matter (specially adapted for dental use A61C17/065) · CPC title

• G06F21/44 Primary

  Program or device authentication · CPC title

• G06F21/6245

  Protecting personal data, e.g. for financial or medical purposes · CPC title