Endoscopic Hemostasis Clamp Rotation for Flexible Vessel Positioning
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Solution Overview
Problem
Existing medical devices for causing hemostasis of blood vessels are complex to operate and assemble, and lack flexibility in positioning the clamp device relative to the blood vessel orientation.
Innovation Solution
A medical device with a clamp housing directly and releasably connected to a connect tube, allowing rotation about the longitudinal axis, and a push-in connection between the clamp housing and connect tube, enabling easy detachment and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clamp device is fixedly connected to the sheath device, then the structure is stable, but the flexibility in positioning the clamp device relative to the blood vessel orientation is reduced
Solution Approach 1:
The clamp housing is connected to the connect tube via a rotatable joint that allows dynamic adjustment of the clamp device orientation relative to the sheath device. This enables the operator to rotate the clamp housing to different angles to match various blood vessel orientations while maintaining a stable connected structure through the joint mechanism.
Solution Approach 2:
The device is divided into separable components: the clamp housing with clamp arms, the connect tube, and the sheath device. The clamp housing can be detached from the sheath device after use by disconnecting it from the connect tube, allowing for easy replacement and sterilization while maintaining structural integrity during use.
2Reliability
If multiple intermediate elements are used to connect the clamp housing to the sheath, then the connection is stable, but the device length and complexity increase
Solution Approach 1:
The connect tube integrates multiple functions into a single component: it serves as both the connection element between the sheath and clamp housing, and as the rotational axis for the clamp housing. This eliminates the need for separate intermediate connection elements, reducing structural complexity while maintaining reliable and rotatable connection.
3Reliability
If the clamp device requires complex assembly procedures, then the connection is secure, but the ease of assembly and operation is reduced
Solution Approach 1:
The rotatable joint between the clamp housing and connect tube allows for easy alignment during assembly. The operator can rotate the clamp housing to the correct orientation before securing the connection, making assembly straightforward while ensuring secure attachment. The same mechanism allows easy detachment after use.
Data Source
AI summary
A medical device for causing the hemostasis of a blood vessel for use through an endoscope comprises: a handle; a sheath device, which is attached to the handle; a clamp device including a clamp housing provided on the distal end of the sheath device and at least two, in particular exactly two clamp arms; a control wire extending through the sheath device and reversibly movable in the distal and proximal direction; an actuator coupled to the proximal end of the control wire and actuable to reversibly move the control wire in the distal and proximal direction; wherein the clamp arms are each coupled to the distal end of the control wire.