Single-Handed Suture Passing Instrument with Integrated Grasper
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Solution Overview
Problem
Conventional suture passing instruments require multiple portal entry points and supplemental instruments, making it difficult to single-handedly pass suture through tissue efficiently.
Innovation Solution
A surgical instrument with first and second members configured to receive tissue, featuring a grasper for engaging suture, a needle for piercing tissue, and a handle for controlling movement, allowing single-handed passage of suture through tissue with only one portal and instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional suture passing instruments are used, then suture can be passed through tissue, but multiple portal entry points and supplemental instruments are required, increasing device complexity and procedural difficulty
Solution Approach 1:
The patent combines multiple functions (suture holding, tissue grasping, needle passing, and suture transfer) into a single integrated instrument. The first member holds suture while the second member grasps tissue, and a needle can pass through both members to transfer suture from the first member through the tissue to the second member, eliminating the need for separate instruments for each function.
Solution Approach 2:
The instrument is designed with multi-functionality where the same instrument can perform suture holding, tissue stabilization, needle passage, and suture transfer through tissue. The first and second members can each serve multiple purposes depending on the surgical step, reducing the need for multiple specialized instruments.
2Productivity
If multiple portal entry points are used for suture passage, then suture can be transferred through tissue, but the procedure becomes more complex and time-consuming
Solution Approach 1:
By combining suture holding, tissue grasping, and suture transfer capabilities into a single instrument with two members, the patent eliminates the need for multiple portal entries and instrument changes, thereby reducing procedural time and improving efficiency.
3Reliability
If conventional instruments require supplemental devices for suture transfer, then suture can be secured, but the overall device complexity increases
Solution Approach 1:
The patent integrates suture securing capability directly into the instrument by having the first member hold suture and the second member grasp tissue, with a needle passing through both to transfer suture. This eliminates the need for separate suture securing devices while maintaining reliable suture attachment.
Data Source
AI summary
A surgical instrument includes first and second members configured to receive tissue therebetween. The first member is adapted to receive suture, the second member is coupled to the first member, and a grasper coupled to the second member engages the suture received by the first member. A method of passing suture includes loading suture into a first member of a suture passing surgical instrument, stabilizing tissue between the first member and a second member of the surgical instrument, passing suture through tissue via the first member of the surgical instrument, holding the passed suture via a suture grasper of the surgical instrument, and removing the first member from the tissue.