Micro Needle Holder Integrating Suture Cutting
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Solution Overview
Problem
In microsurgeries, clinicians face inconvenience and require assistance to cut sutures due to the need to switch between micro needle holders and scissors, which diverts their focus from the microscope.
Innovation Solution
A micro needle holder capable of cutting sutures, featuring a dual-function design with a needle holding unit and a suture cutting unit, allowing single-handed operation by pivoting and elastic connection of plier arms to switch between holding needles and cutting sutures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the clinician uses separate micro forceps and micro needle holder for stitching, then the stitching operation can be performed, but the clinician requires assistant assistance to swap tools for cutting sutures, which reduces operational efficiency and increases procedural complexity
Solution Approach 1:
The patent combines the needle holding function and suture cutting function into a single integrated micro needle holder device. The first plier bodies hold needles while the second plier bodies cut sutures, and both functions are merged into one device that can be operated with a single hand, eliminating the need to switch between separate tools and assistant assistance.
Solution Approach 2:
The micro needle holder is designed as a multi-functional device where the first plier bodies serve for needle holding and the second plier bodies serve for suture cutting. This universal design allows the same device to perform multiple surgical tasks (stitching and cutting) without requiring separate specialized tools, thereby improving ease of operation.
2Productivity
If the clinician waits for assistant to deliver micro scissors, then tool exchange can occur, but time is lost and procedural efficiency decreases
Solution Approach 1:
By merging the needle holder and scissors functions into one device, the patent eliminates the time-consuming process of tool exchange and assistant coordination. The clinician can perform both stitching and cutting continuously without interruption, significantly improving surgical procedure efficiency and eliminating time loss.
3Measurement precision
If the clinician's eyes must focus on microscope images, then surgical precision is maintained, but the clinician cannot simultaneously handle tool exchange or cutting operations
Solution Approach 1:
The multi-functional design allows the clinician to maintain focus on microscope images for precision while the single integrated device handles both needle holding and suture cutting. The device's ability to perform multiple functions eliminates the need for the clinician to shift visual attention or manually exchange tools, preserving both surgical precision and operational ease.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables single-handed operation to hold needles or cut sutures, reducing procedural inconvenience and avoiding potential mishaps by allowing both stitching and suture cutting to be performed in a single iteration without tool exchange.
Implementation Method 1
at least one of the needle holding unit and the suture cutting unit further comprises an elastic member provided between the first plier arms or the second plier arms, so that the first plier arms and the second plier arms are elastically opened and closed
Data Source
AI summary
A micro needle holder capable of cutting sutures, configured for holding needles and cutting sutures during microsurgeries, includes a needle holding unit and a suture cutting unit. The needle holding unit includes a pair of first plier bodies and a first shaft, where each of the first plier bodies has a needle holding end, a first shaft connecting part, and a first plier arm. The suture cutting unit includes a pair of second plier bodies and a second shaft, where each of the second plier bodies includes a suture cutting end, a second shaft connecting part, and a second plier arm. Moreover, the first plier arms are respectively connected with the second plier arms and are configured to elastically open and close corporately.