Offset Jaw Surgical Forceps for Minimally Invasive Bone Repositioning
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Solution Overview
Problem
Previous repositioning forceps are excessively bulky, leading to injuries of soft tissue during bone repositioning and requiring extensive bone exposure or tissue removal to accommodate their size, limiting their usability in various positions.
Innovation Solution
The forceps feature jaw parts that can move within a common pivoting plane with a vertical axis of rotation, allowing one jaw part to be offset parallel to the plane, enabling a more compact fit to the bone contour and angulation, with angled and tapered designs to minimize tissue disruption and enhance maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional repositioning forceps are used, then gripping capability is achieved, but soft tissue injury occurs due to excessive bulk and size
Solution Approach 1:
The forceps is divided into multiple functional segments: handles, shafts, articulation joint, and jaw parts with offset sections. This segmentation allows each component to be optimized independently, reducing overall bulk while maintaining gripping strength through proper distribution of functional elements.
Solution Approach 2:
The jaw parts incorporate offset sections that extend in directions other than the longitudinal axis of the forceps. This dimensional change allows the contact points to reach the bone while keeping the main body of the forceps compact, reducing soft tissue disruption.
2Adaptability or versatility
If traditional repositioning forceps are used, then bone repositioning function is provided, but extensive bone exposure is required to accommodate their size
Solution Approach 1:
The offset sections of the jaw parts allow the forceps to access the bone from a more compact approach angle, reducing the need for extensive bone exposure. The contact points are positioned to reach the target bone area while minimizing the surgical window required.
Solution Approach 2:
The forceps design concentrates the functional contact area at the jaw tips while keeping the shafts and handles compact. This local quality optimization allows effective bone repositioning through a small surgical exposure without requiring the entire forceps structure to be large.
3Productivity
If traditional repositioning forceps are used, then basic repositioning task is completed, but usability in different positions is restricted
Solution Approach 1:
The articulation joint between the first and second jaw parts provides dynamic adjustment capability, allowing the jaw parts to pivot and adapt to different bone positions and orientations. This dynamic mechanism enables the forceps to maintain functionality across multiple surgical positions and angles.
Solution Approach 2:
The offset sections extend the jaw parts in directions perpendicular to the main forceps axis, enabling access to bone surfaces at various angles. This multi-directional capability allows the forceps to be used effectively in different surgical positions without restricting versatility.
Data Source
AI summary
The invention relates to a repositioning forceps (1) with a first rod (2) and a second rod (3) which are pivotably mounted relative to each other on a pivot joint (4) defining an axis of rotation (5), wherein the first rod (2) has a first jaw part (8) on one side of the pivot joint (4), and the second rod (3) has a second jaw part (9) on the same side of the pivot joint (4) provided for cooperating with the first jaw part (8), wherein contact points (13) for contacting a bone or a bone plate are defined on the two jaw parts (8 and 9), wherein the contact points (13) are movable in a common pivot plane which includes the pivot joint, in which the axis of rotation (5) is perpendicular and at least one of the jaw parts (8, 9) is sectionally offset in the direction of a plane parallel to the pivot plane.