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Hemodialysis catheter with improved side opening design

A technology for hemodialysis and catheters, which is applied in catheters, dialysis systems, hollow probes, etc., and can solve problems such as blockage of catheter side openings and blocking blood outflow

Active Publication Date: 2013-04-10
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Formation of a thrombus adjacent to the side opening of the catheter may result in blockage of the side opening of the catheter and partially or completely block blood flow to or from the catheter

Method used

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  • Hemodialysis catheter with improved side opening design
  • Hemodialysis catheter with improved side opening design
  • Hemodialysis catheter with improved side opening design

Examples

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Embodiment Construction

[0029] Several exemplary embodiments of the hemodialysis catheters disclosed herein are discussed herein. It is foreseeable that the principles of the present invention are equally applicable to a range of other known catheter applications, such as cardiac, abdominal, urinary and bowel catheters for chronic and acute applications.

[0030] In the discussion below, the terms "proximal" and "posterior" may be used interchangeably and should be understood to refer to the portion of the structure that is closer to the clinician during proper use. The terms "distal" and "anterior" may also be used interchangeably, and are to be understood as the portion of the structure that is further from the clinician during proper use. As used herein, the term "patient" shall be understood to refer to a human patient or other animal, and the term "clinician" shall be understood to refer to a doctor, nurse or other care provider, and may include care personnel.

[0031] Figure 1-4 An exemplar...

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PUM

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Abstract

A hemodialysis catheter is provided which includes a catheter body having a proximal and a distal end and defining at least one lumen. The at least one lumen includes a distal opening and a side opening formed through a sidewall of the catheter body. The side opening communicates with the at least one lumen, and includes guiding structure positioned adjacent a distal side of the side opening configured to smoothly redirect blood flow into the at least one lumen. The guiding structure may be defined by a raised wall, or in the alternative, an angled distal wall of the side opening.

Description

technical field [0001] The present invention relates to hemodialysis catheters, and more particularly to hemodialysis catheters with improved side openings. Background technique [0002] Catheters are flexible medical devices used to introduce and remove fluids from body cavities, ducts and blood vessels. Catheters are used in the human body for many different applications, including administering fluid therapeutics and withdrawing bodily fluids for testing, monitoring or treatment. Catheters have particular application in hemodialysis procedures, where blood is withdrawn from a blood vessel, directed to a hemodialysis machine for dialysis or purification, and then returned to the blood vessel. [0003] Typically, a dialysis catheter defines at least two lumens, including a venous lumen and an arterial lumen. The arterial lumen withdraws blood from the patient and delivers the blood to the dialyzer. The venous lumen receives purified blood from the dialyzer and returns th...

Claims

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Application Information

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IPC IPC(8): A61M1/14A61M25/14
CPCA61M25/007A61M2025/0073A61M2001/3661A61M2025/0031A61M1/3653A61M1/3661A61M1/3659A61M25/00A61M25/0015A61M25/0029
Inventor S·麦克米恩斯M·桑索斯G·吉尔达R·M·布拉加
Owner TYCO HEALTHCARE GRP LP
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