Dual Bone Forceps Linking Bar for Hands-Free Graft Stabilization
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Solution Overview
Problem
Conventional surgical forceps require an additional assistant to hold the bone graft plate steadily during bone graft procedures, leading to potential movement and errors in drilling and screw placement.
Innovation Solution
The dual bone forceps, comprising a bone graft plate clamping forceps and an anchoring forceps linked by a non-coplanar bar, allows the surgeon to clamp the bone plate to the graft site while anchoring to a supporting bone structure, eliminating the need for an assistant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional surgical forceps are used to hold the bone graft plate, then the bone graft plate can be held during the procedure, but an additional assistant is required and the held graft may move changing the sites of screw holes
Solution Approach 1:
The patent combines two separate forceps functions into a single integrated device: a bone graft plate clamping forceps and an anchoring forceps with a linking bar. This merging allows the surgeon to simultaneously clamp the bone graft plate and anchor it to the recipient bone, eliminating the need for an assistant and preventing position changes during the procedure.
Solution Approach 2:
The linking bar serves as an intermediary element that mechanically connects the bone graft plate clamping forceps to the anchoring forceps. This intermediary structure transfers and transmits the clamping force and positional constraint from the bone graft plate to the anchoring point on the recipient bone, ensuring stable positioning throughout the surgical procedure.
2Duration of action of stationary object
If an assistant holds the bone graft plate for extended periods, then the plate can be positioned, but considerable strain is placed on the assistant and unintended movements can occur
Solution Approach 1:
The dual bone forceps enables the surgeon to perform the positioning and anchoring function independently without requiring an assistant. The instrument's design allows the surgeon to clamp the bone graft plate and anchor it to the recipient bone using only one hand, making the system self-sufficient and eliminating the strain on an assistant for extended periods.
3Measurement precision
If the bone graft plate is held steadily without an assistant, then the accuracy of drilling and screw placement improves, but a more complex device is required
Solution Approach 1:
The dual bone forceps is segmented into two distinct functional components: a bone graft plate clamping forceps for securing the plate to the bone surface, and an anchoring forceps for engaging with the recipient bone structure. This segmentation allows each component to be optimized for its specific function while working together to provide stable positioning and high precision for drilling and screw placement.
Data Source
AI summary
The dual bone forceps may be considered tandem locking forceps wherein the forceps are coupled to each other so that the surgeon may use one for clamping the bone graft plate adjacent the graft site while clamping the other forceps to a supporting bone structure above, below, or lateral to the graft site during the procedure. The dual bone forceps includes a bone graft plate clamping forceps having clamping jaws at the anterior end and flat handles terminating in locking jaws at the posterior end. The dual bone forceps also includes an anchoring forceps having an elongate hook blade and a shortened anvil blade at the anterior end and locking handles at the posterior end. A linking bar extends non-coplanar from the shortened anvil blade to the pivot of the bone graft plate clamping forceps to maintain the two forceps linked to each other, but spaced apart in different planes.