Multi-arm Clamp with Slide Slot for Large Wound Suturing
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Solution Overview
Problem
Existing endoscopic forceps and clamps have limited opening widths, making it complicated and time-consuming to suture large wounds, with a high risk of clamp arms flipping into the wound and reducing the success rate of hemostasis and tissue suture.
Innovation Solution
A slide slot type multi-arm clamp with a handle, catheter, clamping portion, and control line, featuring movable side clamp arms and a clamp base with a pin axis that slides in a moving slot for precise control, allowing independent opening and closing of the clamp arms to accommodate larger wounds and minimize instrument retention in the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing small-opening clamp arms are placed in a denser piling way to suture oversized wounds, then the wound can be sutured, but the operation becomes complicated and time-consuming
Solution Approach 1:
The clamp is divided into multiple independent clamp arms (at least three arms) that can be independently controlled through separate control lines. Each clamp arm can be opened and closed independently, allowing the operator to selectively position and close individual arms around different portions of the wound, simplifying the suturing process for large wounds compared to using multiple traditional clamps
Solution Approach 2:
The multi-arm clamp integrates multiple clamping functions into a single device, with each arm capable of independent operation. The clamp base with its moving slide slot mechanism provides a universal platform that accommodates multiple arms, allowing the single device to perform the function of multiple traditional clamps while reducing procedural complexity
2Productivity
If traditional clamp arms are tightened to suture large wounds, then the wound can be closed, but the clamp arms flip and sink into the wound, reducing success rate
Solution Approach 1:
The clamp arms are designed with dynamic control through individual control lines that allow precise, gradual tightening of each arm. The moving slide slot mechanism enables controlled movement of the pin axis, providing dynamic adjustment capability that prevents sudden flipping and sinking of clamp arms into the wound tissue
Solution Approach 2:
The independent control of each clamp arm provides visual and tactile feedback to the operator during tightening, allowing real-time adjustment to prevent flipping. The operator can observe the position of each arm and adjust the tightening force accordingly, ensuring reliable clamping without sinking into the wound
3Adaptability or versatility
If multiple clamp arms are closed together to tighten the plastic ring, then the oversized wound can be sutured, but the operation time is extended
Solution Approach 1:
Multiple clamp arms are merged into a single integrated device with a common clamp base and control mechanism. This allows all arms to be positioned and adjusted simultaneously before closing, eliminating the need for sequential placement and adjustment of multiple separate clamps, thereby reducing operation time while maintaining the ability to suture oversized wounds
Data Source
AI summary
A slide slot type multi-arm clamp includes a handle, a catheter, a clamping portion, a spring tube and a control line. In practical applications, a surgical operator applies an axial thrust and a pulling force to the handle to drive the control line to move, so as to open/close and lock the clamping portion. Moreover, side clamp arms and a clamp base in the clamping portion can be easily separated from the catheter or the spring tube to stay in a human body so as to achieve the functions of hemostasis and tissue suture. The side slot type multi-arm clamp can achieve the effect of minimizing the length of the instrument retained in the human body by the cooperation between the side clamp arms and the clamp base.