Threaded Surgical Bending Instrument for Anatomical Implant Shaping
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Solution Overview
Problem
Existing surgical instruments lack the ability to efficiently bend and implant surgical staples or bone fusion plates to match the specific anatomy of a patient's bone, leading to potential dislodgment and instability at bone fusion sites.
Innovation Solution
A surgical bending instrument with a distal force applicator and a handle mechanism that allows for the bending and implantation of surgical staples or bone fusion plates, featuring a threaded shaft and grips to maintain the staple or plate in a distracted configuration, facilitating precise alignment and fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a surgical staple or bone plate is rigidly fixed to match patient anatomy, then stability at bone fusion site is improved, but the complexity of the implantation procedure increases due to the need for precise pre-bending
Solution Approach 1:
The surgical bending instrument enables dynamic adjustment of the implant shape during the procedure. The implant can be bent to the required anatomy in real-time using the instrument's mechanical bending mechanism, eliminating the need for complex pre-bending procedures while maintaining the stability required for successful bone fusion.
2Loss of time
If the surgical staple is pre-bent to match patient anatomy, then implantation time is reduced, but the precision of anatomical matching deteriorates due to limitations in pre-bending capabilities
Solution Approach 1:
The surgical bending instrument allows the implant to be bent directly in the surgical field to the precise anatomy required. This self-service approach enables the implant to be customized to the patient's specific anatomy during the procedure itself, achieving high precision anatomical matching without requiring advanced pre-bending capabilities.
3Device complexity
If the surgical staple uses a fixed configuration, then the device complexity is reduced, but the adaptability to different patient anatomies worsens
Solution Approach 1:
The surgical bending instrument changes the geometric parameters of the implant (bending angle, curvature, orientation) during the procedure to match the specific anatomy of each patient. This allows a single standardized implant design to be adapted to various anatomical configurations without increasing the inherent complexity of the staple itself.
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 secure and anatomically tailored implantation of surgical staples and bone fusion plates, reducing dislodgment and enhancing stability at bone fusion sites, while allowing for adjustable sizing and material compatibility with shape memory alloys.
Implementation Method 1
A shaft comprising a threaded portion is rotatably engaged within the threaded hole
Data Source
AI summary
An apparatus and a method are provided for a surgical bending instrument for bending surgical implants. The surgical bending instrument comprises a body including a longitudinally extending threaded hole. A shaft comprising a threaded portion is rotatably engaged within the threaded hole. A handle is coupled to a proximal end of the shaft, and a distal extension of the shaft comprises a driver. A distal force applicator comprises the driver centered between a first grip and a second grip. In some embodiments, the distal force applicator is configured to retain a surgical staple, such that the surgical staple may be changed to a distracted configuration suitable for implantation at a bone fixation or fusion site of a patient. In some embodiments, the distal force applicator is configured to bend a bone fusion plate so as to tailor the plate to specific anatomy of the patient's bone.