Hemoclip Catheter Closing Ring for Precise Multi-Clip Deployment
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Solution Overview
Problem
Current hemoclip deployment systems are inefficient, requiring cumbersome and expensive reloading of individual clips, lack positional adjustment capabilities, and can cause tissue damage due to excessive retraction, leading to prolonged procedures and poor patient outcomes.
Innovation Solution
A closing ring system that interfaces with a catheter, allowing for rotational and linear movement of hemoclips for precise positioning, enabling efficient deployment of multiple clips with reduced tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hemoclips are stacked multiple times for successive deployment, then the quantity of clips deployed increases, but the device complexity and reloading difficulty increase
Solution Approach 1:
The catheter is divided into multiple segments or sections, each capable of holding and deploying a hemoclip independently. This segmentation allows multiple clips to be deployed through a standardized interface without requiring complex reloading mechanisms, resolving the contradiction between quantity and complexity.
Solution Approach 2:
Multiple hemoclips are nested within the catheter structure, with each clip contained in its own compartment or section. The catheter itself is nested within the endoscope, creating a hierarchical arrangement that allows efficient storage and sequential deployment of multiple clips without increasing overall device complexity.
2Measurement precision
If the outer tube is adjusted to reposition the tissue clip, then the positional accuracy improves, but the procedure duration increases
Solution Approach 1:
The catheter incorporates dynamic adjustment mechanisms that allow real-time repositioning of the hemoclip after deployment. The flexible catheter material and adjustable sections enable quick positional corrections without requiring complete removal or complex manual repositioning, thus maintaining accuracy while minimizing time loss.
Solution Approach 2:
The system replaces complex mechanical adjustment of the entire outer tube with simpler, localized adjustment mechanisms within the catheter. This substitution allows for faster, more precise repositioning by acting directly on the hemoclip or its immediate housing rather than manipulating the entire delivery system.
3Ease of operation
If the control wire is pulled to release the tissue clip, then the clip detachment is achieved, but the release completeness and reliability are insufficient
Solution Approach 1:
The release mechanism incorporates feedback features such as visual indicators, tactile cues, or mechanical interlocks that provide confirmation of complete clip detachment. This feedback ensures the operator can verify successful release, preventing incomplete detachment while maintaining simple control wire operation.
Solution Approach 2:
The control wire is designed with features such as equalized force distribution, multiple engagement points, or spring-assisted mechanisms that ensure uniform pulling force is applied to all clip retention points simultaneously. This equipotential design guarantees complete and reliable release of the hemoclip from the catheter without requiring excessive or uneven force.
4Reliability
If the tissue clip is drawn back to close the jaws, then the hemostatic effect is achieved, but tissue damage occurs due to excessive retraction
Solution Approach 1:
The catheter and hemoclip design allows for partial retraction or positioning adjustments without requiring complete withdrawal of the clip from the target site. By achieving hemostasis through partial closure or localized compression rather than full retraction, the system maintains effectiveness while minimizing tissue damage from excessive pulling.
Solution Approach 2:
The design incorporates preliminary positioning features such as alignment guides, depth markers, or pre-set retraction limits that prevent excessive withdrawal of the hemoclip before hemostasis is achieved. These preliminary anti-actions counteract the tendency toward over-retraction, ensuring adequate compression for hemostasis while protecting against tissue damage.
Data Source
AI summary
Disclosed are systems and methods for safely and effectively deploying a hemoclip onto a patient's desired target using a hemoclip system. For instance, disclosed is an catheter that includes a lumen for a hemoclip to pass through. Additionally, disclosed are hemoclips that are configured to be in a compressed position until the hemoclip is deployed out of a catheter where it opens. Then, the hemoclip may be clipped onto the target to encapsulate the desired target within the patient. Once the hemoclip is clamped onto the target, the catheter can move onto the next target for successive deployment and utilization of the hemoclips without manual reload.