ELECTROLYTE AND pH MONITORING FOR FLUID REMOVAL PROCESSES
US-2015367054-A1 · Dec 24, 2015 · US
Extracellular fluid volume calculator and method for calculating extracellular fluid volume
US2021187178A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021187178-A1 |
| Application number | US-201917270427-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 21, 2019 |
| Priority date | Aug 23, 2018 |
| Publication date | Jun 24, 2021 |
| Grant date | — |
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Abstract
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An extracellular fluid volume calculator may include: an acquirement unit configured to acquire a membrane area of a dialyzer used for hemodialysis; and a processor configured to calculate a post-hemodialysis extracellular fluid volume based on a difference between a pre-hemodialysis amount of uric acid and a post-hemodialysis amount of uric acid. The processor may be configured to: calculate a removal amount of uric acid removed by hemodialysis based on a dialyzer overall mass transfer-area coefficient for uric acid; and calculate the dialyzer overall mass transfer-area coefficient for uric acid based on the membrane area of the dialyzer acquired by the acquirement unit.
First claim
Opening claim text (preview).
1 . An extracellular fluid volume calculator comprising: a processor; and a memory storing computer-readable instructions therein, wherein the computer-readable instructions, when executed by the processor, cause the extracellular fluid volume calculator to execute: acquiring a membrane area of a dialyzer used for hemodialysis; and calculating a post-hemodialysis extracellular fluid volume based on a difference between a pre-hemodialysis amount of uric acid and a post-hemodialysis amount of uric acid, wherein a removal amount of uric acid removed by hemodialysis is calculated based on a dialyzer overall mass transfer-area coefficient for uric acid, and the dialyzer overall mass transfer-area coefficient for uric acid is calculated based on the membrane area of the dialyzer. 2 . The extracellular fluid volume calculator according to claim 1 , wherein the computer-readable instructions, when executed by the processor, cause the extracellular fluid volume calculator to further execute: acquiring a plasma flow rate passing through the dialyzer and a dialysate flow rate passing through the dialyzer, and calculating the removal amount of uric acid based on a dialyzer clearance for uric acid, wherein the dialyzer clearance for uric acid is calculated based on the plasma flow rate and the dialysate flow rate acquired by the acquirement unit and the calculated dialyzer overall mass transfer-area coefficient for uric acid. 3 . A method for calculating an extracellular fluid volume, the method comprising: an acquirement step of acquiring a membrane area of a dialyzer used for hemodialysis; and a calculation step of calculating a post-hemodialysis extracellular fluid volume based on a difference between a pre-hemodialysis amount of uric acid and a post-hemodialysis amount of uric acid, wherein the calculation step comprises: a first calculation step of calculating a dialyzer overall mass transfer-area coefficient for uric acid based on the membrane area of the dialyzer acquired in the acquirement step; and a second calculation step of calculating a removal amount of uric acid removed by hemodialysis based on the dialyzer overall mass transfer-area coefficient for uric acid calculated in the first calculation step.
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Profiling or modelling of patient or predicted treatment evolution or outcome · CPC title
with memories providing a history of measured variating parameters of apparatus or patient · CPC title
- A61M1/1603Primary
Regulation parameters · CPC title
Blood composition characteristics · CPC title
Measuring or controlling the flow rate · CPC title
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- What does patent US2021187178A1 cover?
- An extracellular fluid volume calculator may include: an acquirement unit configured to acquire a membrane area of a dialyzer used for hemodialysis; and a processor configured to calculate a post-hemodialysis extracellular fluid volume based on a difference between a pre-hemodialysis amount of uric acid and a post-hemodialysis amount of uric acid. The processor may be configured to: calculate a…
- Who is the assignee on this patent?
- Nipro Corp
- What technology area does this patent fall under?
- Primary CPC classification A61M1/1603. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Jun 24 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).