Multi-Needle Tissue Closure for Symmetric Puncture Positioning
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Solution Overview
Problem
Existing tissue closure instruments risk damaging surrounding organs during suturing due to inconsistent puncture positions and require multiple needle insertions, which can affect wound healing.
Innovation Solution
A tissue closure device with a needle manipulator that drives multiple suture needles to simultaneously extend obliquely from outlet channels, ensuring consistent and symmetrical puncture positions, and includes a needle tip protective structure to shield the needles during puncture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a puncture needle is used to pass through tissue from the exterior into the abdominal cavity, then tissue closure can be achieved, but the needle tip may cause damage to surrounding organs in the abdominal cavity
Solution Approach 1:
The patent introduces a protective sheath as an intermediary component that covers the needle tip during insertion. The sheath acts as a mediator between the needle and surrounding organs, preventing direct contact and potential damage while allowing the needle to perform its suturing function
Solution Approach 2:
The suturing device is segmented into multiple components including the needle, protective sheath, and deployment mechanism. This segmentation allows the protective sheath to be deployed at specific stages, providing targeted protection only when the needle is in the critical insertion phase, thereby reducing overall risk without compromising surgical efficiency
2Productivity
If the puncture needle is inserted from one side and then from the other side to arrange the suture thread, then suturing can be completed, but the puncture position may deviate affecting effective healing
Solution Approach 1:
The patent merges multiple puncture actions into a single simultaneous operation. Multiple needles are deployed at once through a unified mechanism, ensuring that all puncture positions are established concurrently rather than sequentially, which eliminates position deviation between separate insertion actions
Solution Approach 2:
The device performs preliminary positioning of multiple needles before tissue penetration. The needles are pre-aligned and positioned within the device housing, ensuring precise and consistent puncture positions are established before the actual suturing action occurs
Data Source
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AI summary
The present invention relates to the technical field of tissue closure, and discloses a tissue closure device and a tissue closing method. The tissue closure device includes: a tube body in which a plurality of needle outlet channels are formed; a plurality of suture needles located in the tube body; and a needle manipulator disposed on the tube body and movable between a needle initial position and a needle triggering position. The needle manipulator can drive the plurality of suture needles to simultaneously move so as to simultaneously extend obliquely from respective corresponding needle outlet channels to a puncture position. The needle manipulator allows the plurality of suture needles to simultaneously move so as to simultaneously retract into the respective corresponding needle outlet channels. Since the needle manipulator can drive the plurality of suture needles to simultaneously move, as such, the needle manipulator can drive in one step the plurality of suture needles to the puncture position, so that the consistency and symmetry of the puncture position can be improved, and the deviation of the puncture position can be avoided, so as to avoid the risk of damaging other organs around tissue when the suture needles puncture the tissue, thereby improving the safety of surgical suturing.