Container for Peritoneal Dialysis, Corresponding Kit and Method for Calculating Ultrafiltration Volume

Patent metadata

Field	Value
Publication number	US-2024374801-A1
Application number	US-202118686608-A
Country	US
Kind code	A1
Filing date	Aug 31, 2021
Priority date	Aug 31, 2021
Publication date	Nov 14, 2024
Grant date	—

Abstract

Disclosed herein is a container for peritoneal dialysis, comprising an enclosure, configured to accommodate a fluid; an elastic tube, configured to be stretched for indicating a length change thereof according to the fluid flowing into and/or out of the enclosure; and at least one position mark, disposed on the enclosure or a rigid connector tube for the enclosure; wherein the position mark assists to determine the volume of the fluid flowing in and/or out of the enclosure. Also disclosed are a corresponding kit and methods for calculating the ultrafiltration volume. According to the disclosure, the ultrafiltration volume can be determined efficiently and conveniently, and can assist patents to tightly monitor their health and timely alert in case of a worse trend to be predicted.

First claim

1 .- 15 . (canceled)

16 . A container for peritoneal dialysis, comprising:
an enclosure, configured to accommodate a fluid; an elastic tube, configured to be stretched for indicating a length change thereof according to the fluid flowing into and/or out of the enclosure; and at least one position mark, disposed on the enclosure or a rigid connector tube for the enclosure; wherein the position mark assists to determine the volume of the fluid flowing in and/or out of the enclosure.

17 . The container according to claim 16 , wherein the container further comprises:
at least two additional position marks, disposed on the elastic tube, and configured to indicate the length change of the elastic tube.

18 . The container according to claim 16 , wherein
said at least one position mark is disposed on the rigid connector tube, and only one additional position mark is disposed on the elastic tube for indicating a length change of the position mark relative to said at least one position mark.

19 . The container according to claim 18 , wherein
said at least one position mark is disposed on the rigid connector tube so that the highest edge of said at least one position mark is in line with the upper edge of the rigid connector tube; or said at least one position mark is disposed on the rigid connector tube so that the lowest edge of said at least one position mark is in line with the lower edge of the rigid connector tube.

20 . The container according to claim 16 , wherein
the length change of the elastic tube is identified by an image recognition technology; and images are taken, preferably by a smart phone, before and after the elastic tube is stretched.

21 . The container according to claim 16 , wherein
the container is a bag with a fresh solution, and the elastic tube is stretched for indicating a length reduction according to the fluid flowing out of the enclosure.

22 . The container according to claim 16 , wherein
the container is an empty bag for accommodating a waste fluid, and the elastic tube is stretched for indicating a length increase according to the fluid flowing into the enclosure.

23 . The container according to claim 16 , wherein
the elastic tube is a separate tube segment connected with the enclosure or the rigid connector tube.

24 . The container according to claim 16 , wherein
the elastic tube is a separate tube segment assembled with a fluid transfer tubing.

25 . The container according to claim 17 , wherein
the length change of the elastic tube is identified by an image recognition technology; and images are taken, preferably by a smart phone, before and after the elastic tube is stretched.

26 . The container according to claim 18 , wherein
the length change of the elastic tube is identified by an image recognition technology; and images are taken, preferably by a smart phone, before and after the elastic tube is stretched.

27 . The container according to claim 19 , wherein
the length change of the elastic tube is identified by an image recognition technology; and images are taken, preferably by a smart phone, before and after the elastic tube is stretched.

28 . The container according to claim 17 , wherein
the container is a bag with a fresh solution, and the elastic tube is stretched for indicating a length reduction according to the fluid flowing out of the enclosure.

29 . The container according to claim 18 , wherein
the container is a bag with a fresh solution, and the elastic tube is stretched for indicating a length reduction according to the fluid flowing out of the enclosure.

30 . A kit comprising the container according to claim 16 .

31 . A method for determining ultrafiltration volume by using the container according to claim 16 , the method comprising:
taking at least a first image, preferably by a smart phone, before a fluid is introduced into the enclosure; introducing the fluid into the enclosure; taking at least a second image after the elastic tube is stretched due to the introducing of the fluid into the enclosure; identifying a first length change of the elastic tube; and calculating the volume of the fluid or the ultrafiltration volume according to a function between the length change of the elastic tube and the weight of the fluid accommodated in the enclosure.

32 . The method according to claim 31 , wherein
if a fresh solution remains after the fresh solution is partially used, after calculating the volume of the fluid, the method further comprising introducing the remaining fresh solution into the enclosure; taking at least a third image after the elastic tube is stretched; identifying a second length change of the elastic tube; and calculating the volume of the remaining fresh solution or the volume of the fresh solution which is partially used.

33 . The method according to claim 32 , wherein the method further comprises:
introducing the fluid out of the enclosure before introducing the remaining fresh solution into the enclosure; or after calculating the volume of the fluid, introducing the remaining fresh solution into the enclosure without introducing the fluid out of the enclosure.

34 . The method according to claim 31 , wherein the method further comprises
taking at least a fourth image, preferably by a smart phone, before a fluid is introduced out of the enclosure; introducing the fluid out of the enclosure; taking at least a fifth image after the elastic tube is stretched; identifying a length change of the elastic tube; and calculating the volume of the remaining fresh solution or the volume of the fresh solution which is partially used.

35 . The method according to claim 31 , wherein
the function between the length change of the clastic tube and the weight of the fluid accommodated in the enclosure is predetermined, preferred in a linear manner.

Assignees

• Fresenius Medical Care Deutschland Gmbh
• Fresenius Medical Care Asia Pacific Ltd

Inventors

• Yuan Peng
• Liu Zhen

Classifications

• A61M1/70

  Gravity drainage systems (drainage containers not being adapted for subjection to vacuum A61M1/69) · CPC title

• A61M1/69

  Drainage containers not being adapted for subjection to vacuum, e.g. bags (devices worn by the patient for reception of urine A61F5/44) · CPC title

• A61J2200/76

  for fluid level · CPC title

• A61J2200/74

  for weight · CPC title

• A61M2205/583

  by visual feedback · CPC title