Multi-lumen Catheter Separated Tip Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The manufacturing of multilumen catheters with laterally spaced or separated tip sections complicates existing catheter manufacturing processes, necessitating a simpler and cost-effective method to minimize blood recirculation during hemodialysis procedures.
Innovation Solution
A method involving the formation of a dual lumen catheter body with separate distal tip members, where the tip members are assembled using adhesives or heat to create a fluid communication, with the option of positioning the longitudinal axes of the tip members at an angle greater than 0 degrees to the catheter body's axis, enhancing the separation of arterial and venous lumens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multilumen catheters are manufactured with laterally spaced or separated tip sections to minimize blood recirculation, then blood recirculation is reduced, but the manufacturing process becomes more complex
Solution Approach 1:
The catheter tip is divided into separate distal tip sections, each with its own lumen opening positioned at different lateral locations. This segmentation allows arterial and venous lumens to be spatially separated at the distal end, preventing blood recirculation while maintaining a relatively simple overall manufacturing approach by treating the tip sections as modular components
Solution Approach 2:
The distal tip sections are extracted or separated from the main catheter body as distinct components. These separate tip sections can be manufactured independently and then assembled to the catheter body, simplifying the manufacturing process by allowing each component to be produced using standard techniques rather than requiring complex integrated molding
2Ease of manufacture
If separate distal tip members are assembled to the catheter body using adhesives or heat, then manufacturing simplicity is improved, but assembly process complexity increases
Solution Approach 1:
Adhesives or heat treatment are used as intermediary mechanisms to join the separate distal tip members to the catheter body. These intermediaries simplify the assembly process by providing reliable bonding without requiring complex mechanical fastening systems, while still allowing for modular construction and assembly
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the manufacturing process while effectively reducing blood recirculation by ensuring proper fluid communication and separation of lumens, improving the efficiency and cost-effectiveness of multilumen catheter production for hemodialysis and other medical applications.
Implementation Method 1
the assembling step includes using adhesives to secure the first distal tip member to the distal end of the dual lumen catheter body
Implementation Method 2
the assembling step includes using heat to secure the first distal tip member to the distal end of the dual lumen catheter body
Data Source
AI summary
The present disclosure is directed to a method of manufacturing a catheter wherein a dual lumen catheter body and at least one distal tip member are separately formed and the at least one distal tip member is subsequently assembled to the dual lumen catheter body. The components may be assembled using a heating process or, alternatively, using adhesives.