Multi-Path Suture Needle Guide Tube for Stable Tissue Puncture
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Solution Overview
Problem
Existing tissue closure instruments often cause deviated punctures due to needle shaking, leading to increased tissue injury, especially in endoscopic surgeries, and struggle to accurately place sutures in desired positions within the body cavity.
Innovation Solution
A suture needle guide tube and tissue suturing device that includes a tube body with internal channels and suture needle guides, allowing precise needle guidance and suture arrangement without additional punctures, reducing tissue injury by stabilizing the needle path and ensuring accurate suture placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a puncture needle is used to puncture tissue without a guide tube, then the operation is simple and quick, but the needle shakes causing deviated punctures and increased tissue injury
Solution Approach 1:
A guide tube is introduced as an intermediary device between the surgeon's hand and the puncture needle. The guide tube stabilizes the needle during insertion, preventing shaking and deviated punctures, thereby reducing tissue injury while maintaining operational simplicity
Solution Approach 2:
The guide tube is pre-positioned in the tissue before needle insertion. This preliminary placement creates a stable pathway that guides the needle accurately, preventing shaking during the puncture process and eliminating the need for multiple corrective punctures
2Ease of operation
If the puncture cannula is pulled out to insert a tissue closure instrument, then the instrument can be inserted, but a new wound may be made and the suturing position becomes incorrect
Solution Approach 1:
The guide tube is designed to serve multiple functions: it guides the puncture needle for initial puncture, remains in place to guide the subsequent insertion of the tissue closure instrument, and ensures both instruments follow the same accurate pathway. This eliminates the need to remove the guide tube between operations
Solution Approach 2:
The guide tube remains continuously in place throughout the entire surgical procedure, providing uninterrupted guidance for both needle insertion and instrument placement. This continuous presence ensures that both punctures follow the exact same accurate pathway, preventing position deviation
3Measurement precision
If surgeons shake the puncture needle to search for the suture position, then the suture can be found, but the puncture in tissue is damaged
Solution Approach 1:
The guide tube acts as a stable intermediary that eliminates the need for needle shaking. By providing a fixed guidance pathway, the guide tube allows surgeons to accurately locate and insert the suture in one steady motion, preventing damage to the puncture site that would result from repeated shaking movements
Data Source
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AI summary
The present invention relates to the technical field of surgical instruments, and disclosed are a suture needle guide tube and a tissue suturing device. The suture needle guide tube includes: a tube body, for being inserted into a wound to be sutured and including an internal axial channel for arranging a handling tube, the tube body being provided with a plurality of suture needle passing paths located in different positions for guiding a suture needle to pass therethrough; and a suture needle guide, provided with a plurality of suture needle guide channels located in different positions; wherein the suture needle guide is provided on the tube body, and each suture needle guide channel respectively communicates with the corresponding suture needle passing path so as to guide the suture needle to move out of the suture needle guide channel and then pass through the suture needle passing path to enter an inner cavity and to allow the suture needle to exit with a suture. The suture needle guide tube can guide a suture needle to puncture accurately in a predetermined direction, and a deviated puncture caused by shaking of the suture needle is avoided, thereby reducing injury to tissue of a wound to be sutured of a patient.