Integrated Catheter Assembly with Retractable Needle
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Solution Overview
Problem
Current dialysis procedures for patients with kidney or renal system failure are uncomfortable and painful due to the frequent insertion and removal of catheters, requiring multiple needle insertions and lengthy procedures, which can lead to discomfort and increased healthcare costs.
Innovation Solution
An integrated catheter assembly with a retractable 14G needle and improved tubing management features, reducing the number of needle insertions and procedure time by providing a single point of entry, and incorporating a locking mechanism and depth gauge for precise placement, thereby enhancing comfort and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple needle insertions are used for dialysis catheter attachment, then blood access is achieved, but patient discomfort and procedure time increase
Solution Approach 1:
The patent combines multiple catheter insertion functions into a single integrated catheter assembly that provides both blood access and medication administration through one insertion site, eliminating the need for separate needle insertions for different purposes
Solution Approach 2:
The integrated catheter assembly serves multiple functions simultaneously: it provides blood access for dialysis, allows medication administration, and enables fluid management all through a single insertion point, making the device universally applicable for various medical needs
2Reliability
If multiple needle insertions are used for catheter attachment, then adequate blood access is obtained, but infection risk increases
Solution Approach 1:
The patent merges multiple access functions into a single catheter insertion, reducing the number of skin punctures and potential entry points for infection while maintaining reliable blood access through the integrated design
3Stability of the object's composition
If traditional catheter securing methods are used, then catheter stability is achieved, but patient discomfort increases
Solution Approach 1:
The catheter assembly features nested components where the inner catheter is positioned within the outer catheter, allowing stable securing to the patient while minimizing contact with surrounding tissue and reducing discomfort
Data Source
AI summary
An integrated catheter assembly includes a housing member, an outer lumen member extending from the housing member, and a needle member having a needle slidably or movably coupled to the housing member, wherein the needle can be extended beyond the outer lumen member. Once a flash of blood is confirmed the needle member is uncoupled from the housing member and removed from within the patent's vein or artery. Two separate passageways are established by the inner and outer lumen members passing through the housing member. In this manner the two passageways permit the simultaneous flow of fluids into or out of a body from a single target site, such as blood, medications and other fluids.