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flow reversing device

A reversing device, reversing valve technology, applied in the direction of valve devices, devices to prevent accidental or unauthorized action, engine components, etc.

Active Publication Date: 2022-07-08
NXSTAGE MEDICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the problem of crossing blood lines is solved by providing an external support that routes the lines in such a way that patient connection tubing extends from one end of the device and treatment device tubing extends from the opposite end

Method used

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Examples

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Embodiment Construction

[0034] reference now figure 2 , the patient 130 is connected to the blood processing machine 315 through the passage 139 . The blood processor draws blood through arterial blood line 305 and returns the treated blood to patient 130 through venous blood line 307 . The blood processing machine 315 may be any treatment device, such as a hemodialysis machine, a blood filter, an infusion pump (in which case the arterial line 305 would not be present), or the like.

[0035] Access 139 may be composed of various devices, such as a combination of a fistula (not shown) and a catheter (not shown), or other types of access that may be disconnected in various ways. For example, the catheter (not shown) may be withdrawn from the fistula (not shown) and / or the catheter (not shown) may be disconnected from the arterial line 307 and the venous line 305 by means of luer connectors (not shown) . The above are general features of the various known alternatives.

[0036] The diverter valve 3...

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Abstract

An external support that routes the piping of a diverter valve in such a way that a connecting tube extends from one end of the device and a treatment device tube extends from the opposite end. The outer support may provide a guide that retains the tubing extending from the supported flat rotary switcher type valve to prevent it from being pinched or kinked, thereby ensuring free flow of blood.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Application No. 62 / 478,518, filed March 29, 2017, which is incorporated herein by reference in its entirety. Background technique [0003] Hemodialysis and other forms of extracorporeal blood treatment require removing blood from a patient through an arterial bank, delivering the blood to a blood processing device (such as a dialyzer), and returning the blood to the patient through a venous blood bank. [0004] Maintaining good hemogroup access is a major cost of dialysis, which is the most common extracorporeal blood treatment, but other types of blood treatment are also used, such as passing blood through absorbent beds to remove toxins, etc., blood perfusion, and other forms of blood treatment. [0005] In addition to the initial cost of a surgical procedure to create a fistula or graft in a patient, maintaining adequate blood flow in a patient's arterialized vein o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/36A61M39/22F16K11/02
CPCA61M1/367A61M39/223F16K35/04F16K11/0525F16K11/0853F16K11/027A61M2039/229
Inventor 詹姆斯·M·布鲁格威廉·J·施奈尔肯尼斯·E·巴克勒
Owner NXSTAGE MEDICAL INC
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