Suction Clip With Check Valve For Endoscopic Hemostasis
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Solution Overview
Problem
Conventional hemostatic devices for gastrointestinal bleeding require rotation to engage tissue effectively and often struggle with secure attachment and release during minimally invasive procedures, leading to invasive open surgery in some cases.
Innovation Solution
A suction clip device with a distal suction chamber and check valve, deployable via an endoscope, that adheres to tissue without needing rotation, utilizing a vacuum to secure and release the clip for hemostatic treatment or marking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional clip with a pair of arms is used, then the clip can grasp tissue for hemostasis, but the clip requires rotation to properly engage the target area, which is hindered by the travel of the operating wire through bends in the delivery tube
Solution Approach 1:
Instead of rotating the clip to orient it correctly, the invention inverts the approach by allowing the clip to be delivered in any orientation and then rotating the entire delivery system (catheter and clip together) to achieve proper orientation at the target site. This eliminates the constraint of wire travel through bends limiting clip rotation.
Solution Approach 2:
The invention employs a dynamic delivery system where the catheter can be rotated and manipulated flexibly to accommodate different target orientations. The clip maintains its functional orientation relative to the catheter while the catheter itself can be positioned dynamically to reach various anatomical locations without requiring complex wire manipulation.
2Reliability
If a conventional hemostatic device is used, then the device can apply constrictive forces to blood vessels, but the device struggles with secure attachment to the delivery apparatus and quick release at the target site
Solution Approach 1:
The invention introduces an intermediary release mechanism within the delivery system that allows for secure attachment during delivery and rapid release at the target site. This intermediary component facilitates the transition from a secured state during transport to a quick-release state for deployment, resolving the contradiction between secure attachment and fast release.
Solution Approach 2:
The delivery apparatus is pre-configured with release mechanisms and attachment features that are activated or engaged at specific stages of the procedure. The secure attachment is established preliminarily during delivery, and the release function is prepared in advance to enable quick deployment when the target site is reached.
3Object-affected harmful factors
If minimally invasive endoscopic techniques are used, then morbidity is reduced compared to open surgery, but conventional clips require rotation and complex manipulation that can compromise procedural simplicity
Solution Approach 1:
The invention creates a universal delivery system that can accommodate clips in any orientation and can be manipulated through various delivery paths without requiring complex rotation or repositioning. This multi-functional capability maintains the benefits of minimally invasive techniques while simplifying the operational requirements for the operator.
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
Enables effective hemostasis and tissue marking without the need for clip rotation, facilitating minimally invasive procedures and reducing morbidity associated with open surgery.
Implementation Method 1
a suction clip device with a distal suction chamber and check valve, deployable via an endoscope, that adheres to tissue without needing rotation, utilizing a vacuum to secure and release the clip
Implementation Method 2
The suction clip device has an enlarged distal suction chamber portion including a distal lip configured to conform to a body tissue surface, an intermediate portion comprising a check valve
Data Source
AI summary
A suction clip and system and method therefor. The suction clip is configured for deployment from a catheter to provide for hemostasis of injured tissue. The suction clip preferably includes a flexible distal rim configured to form sealing contact with tissue to be treated and a proximal check valve to maintain a seal of the clip to the tissue when a vacuum has been provided therebetween. The suction clip may include a visual or radio-opaque marker to aid in later location of same.