Rapidly Insertable Central Catheter Assembly with Roller-Wheel Advancement
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Solution Overview
Problem
The Seldinger technique for introducing central venous catheters is time-consuming and involves multiple medical devices, leading to potential patient trauma and contamination risks due to device handling and exchange.
Innovation Solution
A RICC insertion system comprising a RICC assembly, insertion device, and introducer, which reduces steps and devices by using a splittable casing and roller wheels to advance the catheter through the vasculature, along with a keeper and introducer sheath designed for single-hand operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the Seldinger technique is used to introduce central venous catheters, then the catheter can be successfully advanced through the vasculature, but the procedure becomes time-consuming and involves multiple device exchanges
Solution Approach 1:
The patent combines the guidewire, catheter, and introducer sheath into an integrated assembly where the catheter is pre-attached to the guidewire and both are contained within the introducer sheath. This merging eliminates the need for separate device exchanges and manual assembly steps, directly reducing procedure time while maintaining successful catheter advancement.
Solution Approach 2:
The catheter is pre-attached to the guidewire before insertion, and both components are pre-positioned within the introducer sheath. This preliminary preparation eliminates the need for time-consuming in-procedure assembly and device exchanges, allowing for rapid deployment while ensuring proper positioning.
2Ease of operation
If multiple medical devices are used in the Seldinger technique, then the catheter insertion can be completed, but handling and exchanging devices increases complexity and potential for error
Solution Approach 1:
The patent merges multiple previously separate devices (guidewire, catheter, introducer sheath) into a single integrated assembly. This reduces the number of discrete devices that must be handled and exchanged, simplifying the procedure while maintaining the functional benefits of each component.
Solution Approach 2:
The introducer sheath serves multiple functions: it contains the pre-attached guidewire-catheter assembly during insertion, provides a pathway for catheter advancement, and can be removed or left in place as needed. This multi-functionality reduces the need for additional specialized devices.
3Object-affected harmful factors
If multiple device exchanges are performed during the Seldinger technique, then the catheter can be advanced, but patient trauma and contamination risk increase
Solution Approach 1:
By combining the guidewire, catheter, and introducer sheath into an integrated assembly, the patent eliminates multiple device exchanges that would otherwise be required. This reduces mechanical trauma to the patient from repeated insertions and extractions while maintaining effective catheter placement.
Solution Approach 2:
The catheter is pre-attached to the guidewire and both are pre-positioned within the introducer sheath before patient contact. This preliminary configuration eliminates the need for in-procedure device exchanges, reducing the risk of contamination and trauma associated with multiple insertions and extractions.
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
The system minimizes patient trauma and contamination by reducing the number of steps and devices, facilitating a more efficient and streamlined catheter insertion process.
Implementation Method 1
repeatedly pushing the longitudinal composite into the one-or-more roller wheels and rolling the longitudinal composite across the one-or-more roller wheels
Implementation Method 2
rolling the longitudinal composite across the one-or-more roller wheels
Data Source
AI summary
Rapidly insertable central catheters (“RICCs”), introducers, and insertion devices including combinations and methods thereof are disclosed. For example, a RICC system can include an introducer and a RICC insertion assembly including a RICC assembly disposed in a RICC insertion device. The RICC assembly can include a RICC, an access guidewire, and a splittable casing over a catheter tube of the RICC and the access guidewire forming a longitudinal composite. The RICC insertion device can include a frame and a nose cover forming a split channel that splits away from a through channel of a nose of the frame. The RICC insertion device can be configured for advancing the RICC assembly by rolling the longitudinal composite across roller wheels disposed in the frame. The through channel can be configured for advancing the catheter tube therethrough while the split channel can be configured for both splitting and passing the splittable casing therethrough.