Detachable Pivotable Jaws for Secure Tissue Hemostasis
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Solution Overview
Problem
Conventional hemostatic devices and clips used for gastrointestinal bleeding and tissue closure are not strong enough for permanent hemostasis and face challenges with difficult placement and limited tissue grasping capacity, leading to incomplete closure.
Innovation Solution
A medical device with a housing, jaws, driver, and elongated drive wire system that allows for precise tissue engagement and clipping, featuring a connection block mechanism for secure attachment and disengagement, enabling effective grasping and locking of tissue for hemostasis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional hemostatic clips are used, then the device structure is simple, but the tissue engagement strength is insufficient for permanent hemostasis
Solution Approach 1:
The device is divided into modular components including a driver, elongated tubular member, connection block, and drive wire system. This segmentation allows each component to be optimized for specific functions while maintaining overall structural integrity and tissue engagement strength.
Solution Approach 2:
The device incorporates movable jaws that can pivot and rotate relative to the housing, transitioning between open and closed positions. The drive wire system enables dynamic control of jaw movement, allowing the device to adapt to different tissue types and achieve secure engagement.
2Ease of operation
If conventional clips are used, then the device is easy to manufacture, but the placement difficulty increases and tissue grasping capability is limited
Solution Approach 1:
The driver is nested within the elongated tubular member, and the connection block is positioned within the lumen of the tubular member. This nested configuration allows the device to be delivered through a compact form while maintaining full functionality, improving placement ease without significantly complicating manufacturing.
Solution Approach 2:
The connection block acts as an intermediary component that couples the drive wire system to the driver. This mediator enables precise control of jaw movement while simplifying the overall assembly process, balancing manufacturing ease with operational precision.
3Reliability
If conventional clips are used, then the device structure is simple, but the tissue closure completeness is insufficient
Solution Approach 1:
The device is pre-configured with the driver nested within the tubular member and the connection block positioned to engage with the housing. This preliminary arrangement ensures that all components are ready for immediate deployment, enabling complete and reliable tissue closure without requiring complex assembly steps during the procedure.
Data Source
AI summary
Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.