Slider-Handle Surgical Instrument for Precise Deep-Tissue Control
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Solution Overview
Problem
Conventional surgical instruments experience hand movement and shaking during delicate procedures in neurosurgery due to the design requiring manipulation of the middle finger, which affects the precision and accuracy of surgical operations in deep tissue areas.
Innovation Solution
A surgical instrument with a slider handle that slides and rotates along a longitudinal axis, allowing independent control of treatment members' opening and closing, and enabling precise rotation without amplifying hand movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional surgical instrument uses a trigger mechanism operated by the middle finger for opening/closing the treatment members, then the instrument can be operated with standard hand positioning, but hand movement and shaking occur during delicate procedures in deep tissue areas, reducing surgical precision
Solution Approach 1:
The invention extracts the middle finger operation function from the trigger mechanism and reassigns it to the index finger. The trigger is repositioned and redesigned so that it can be operated by the index finger instead of the middle finger, eliminating the shaking problem while maintaining the opening/closing function of the treatment members
Solution Approach 2:
The invention introduces an intermediary mechanism - a rotationally movable member that connects the trigger to the treatment members. This member rotates about the longitudinal axis of the rod-shaped body, serving as a mediator that converts the pulling motion of the index finger into the opening/closing action of the treatment members, thereby stabilizing hand positioning during delicate procedures
2Adaptability or versatility
If the surgical instrument is designed for shallow operations in plastic surgery and orthopaedic surgery, then the instrument structure remains simple and easy to manipulate, but it cannot effectively address the challenges of deep tissue operations in neurosurgery
Solution Approach 1:
The invention introduces dynamic elements to the instrument structure, including a rotationally movable member that can rotate about the longitudinal axis and a trigger mechanism that adapts to different operating conditions. These dynamic components allow the instrument to adjust to both shallow and deep tissue operations, enhancing versatility without excessive complexity
Solution Approach 2:
The redesigned trigger mechanism and rotationally movable member serve multiple functions: they enable opening/closing of treatment members, allow rotation about the longitudinal axis, and provide stable hand positioning for both shallow and deep tissue operations. This multi-functionality increases adaptability across different surgical fields
Data Source
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Figure 3(a)~3(b)
AI summary
A surgical instrument 1 includes: a treatment unit 10 having a distal end that is openable and closable; a rod-shaped body 100 to which the treatment unit 10 is connected; a fixed cylindrical portion 20 with which a rear end side of the rod-shaped body 100 rotatably engages; a gripping portion 30 that is integrally provided with the fixed cylindrical portion 20 as a portion that a user grips; and a slider handle 200 that is mounted on the rod-shaped body 100. The surgical instrument 1 is configured such that the treatment unit 10 is opened or closed by moving the slider handle 200 forward or backward, and the treatment unit 10 is rotated by rotating the slider handle 200. According to the surgical instrument 1, a surgical procedure can be performed more accurately and finely than the prior art.