Venous Access Port Over-the-Wire Guide Wire Placement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing implantable venous access ports face challenges with improper positioning during placement, leading to catheter kinking, redundancy, and potential suboptimal intravenous location, resulting in port failure and prolonged procedure times.
Innovation Solution
An implantable venous access port design that allows for safe and easy insertion using a guide wire, featuring a self-sealing septum and a discharge port with a closure member, enabling the port to be implanted over a guide wire, and a method for assembling the port with a guide wire for precise placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional implantable venous access ports are manipulated during placement into the subcutaneous port pocket, then the port can be implanted, but catheter kinking or redundancy can occur and improper positioning may result
Solution Approach 1:
The patent applies preliminary action by pre-implanting the port into a port pocket before catheter insertion. The port is positioned and secured in advance, allowing the catheter to be threaded through it later without manipulating the port itself, thereby preventing displacement or improper positioning during the catheter insertion process.
Solution Approach 2:
The patent segments the implantation process into distinct phases: first implanting the port into the port pocket, then separately inserting the catheter through the port. This separation allows each component to be positioned independently and securely, eliminating the risk of catheter manipulation causing port displacement.
2Productivity
If the port and catheter are manipulated during placement procedure, then implantation can be completed, but the procedure time is significantly prolonged
Solution Approach 1:
The port is implanted into the port pocket as a preliminary step before catheter insertion. This preliminary positioning eliminates the need for simultaneous manipulation of both port and catheter, streamlining the procedure and reducing overall implantation time.
Solution Approach 2:
The port pocket serves as an intermediary structure that receives and secures the port before catheter insertion. This intermediate step provides a stable platform that simplifies subsequent catheter threading and reduces procedural complexity.
3Adaptability or versatility
If traditional ports are implanted, then venous access is provided, but the risk for infection increases with continuous access sites
Solution Approach 1:
The port incorporates a self-sealing septum that automatically seals after each needle withdrawal without requiring manual intervention. This self-service sealing mechanism maintains closure integrity over multiple uses, providing continuous reusability while minimizing infection risk through consistent sealing.
Solution Approach 2:
The septum is designed to be discarded after a certain number of uses or showing signs of degradation, while the main port body is recovered and retained for future use. This selective replacement strategy maintains infection prevention while maximizing the reusable lifespan of the implantable device.
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
Facilitates safe and expeditious insertion and potential readjustment or replacement of the port, reducing procedure time and risk to the patient by ensuring accurate positioning and reducing the likelihood of port failure.
Implementation Method 1
The present invention is an implantable venous access port for a catheter that can be implanted into a patient over a guide wire
Implementation Method 2
a septum defining an access site for multiple needle sticks without the need to continuously search for new access sites, since the septum is comprised of material such as silicone elastomer that self-seals each time as a needle is withdrawn
Data Source
AI summary
An implantable venous access port for a catheter. The port assembly (100) includes a body (102), a septum (134) for needle insertion, a discharge port (150) having a passageway (154) and to which a catheter proximal end (202) is connected, and a proximal port (170) with a proximal passageway (172,116) that is in line with the discharge port passageway (154). A chamber (118) of the port body (102) fluidly connects the proximal port passageway and the discharge port passageway, and a proximal septum (174) traverses and seals the proximal passageway (172,116). An entry cannula (190) is insertable into the proximal opening and penetrates the proximal septum (174) and extends to the discharge port passageway (154) enabling a guide wire (198) to be inserted therethrough after the port (100) has been connected to the catheter (200), whereafter the entire assembly is implantable into a patient over the guide wire. A method of over-the-wire venous port placement is disclosed, and also a method for assembling the port.