Rotatable Catheter Holder with Crush-Prevention Guide
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Solution Overview
Problem
Existing catheter body surface fixing devices lack the degree of freedom to route catheters made of harder materials effectively, often resulting in kinking issues when used in procedures requiring high pushability, such as cerebral infarction treatments.
Innovation Solution
A catheter holder with a first component adherable to the patient's body surface and a second component rotatably connected, featuring a catheter guide portion with a crush prevention mechanism to bend and securely hold catheters, allowing for flexible routing and preventing kinking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a catheter made of harder material is used to improve pushability for quick passage through medullary cavity, then the catheter can quickly reach the target, but the catheter may kink when routed through the body surface fixing device
Solution Approach 1:
The body surface fixing device is divided into multiple functional components: a base portion for fixation, a receiving portion for catheter insertion, and a holding portion for securing the catheter. This segmentation allows each component to optimize its function, with the receiving portion specifically designed to guide harder catheters without causing kinks.
Solution Approach 2:
The receiving portion acts as an intermediary element between the base portion and the catheter. It provides a transition zone that smoothly guides the catheter from the body surface into the medullary cavity, preventing sharp bends and kinks while still allowing the use of harder catheter materials for improved pushability.
2Ease of manufacture
If a catheter body surface fixing device with fixed structure is used, then the device is simple to manufacture, but the catheter routing flexibility is limited
Solution Approach 1:
The holding portion is designed to be movable relative to the base portion, allowing dynamic adjustment of the catheter routing angle and position. This dynamic capability enables the device to adapt to different catheter types and routing requirements while maintaining a relatively simple overall structure that remains easy to manufacture.
Data Source
AI summary
A catheter holder capable of stably holding a catheter on a body surface of a patient by facilitating catheter routing when the catheter is mounted on the body surface includes first and second components. The first component has a base portion configured to adhere to the patient's body surface and a receiving portion configured to receive a portion of a catheter disposed inside the patient's body and extending to outside of the body. The second component has a holding portion configured to hold the catheter and/or a connector connected to the catheter, with the second component being rotatably connected to the first component. The first or second component includes a catheter guide portion configured to bend the catheter, which extends from the receiving portion, toward the holding portion, and the catheter guide portion is formed with a crush prevention portion configured to prevent the catheter from being crushed.