Kerrison Rongeur Bone Collector With Scraper Cap
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Solution Overview
Problem
The existing methods for removing cut bone from a kerrison rongeur are inefficient and require the surgeon to repeatedly relinquish the instrument to an assistant, disrupting the surgical flow and increasing the risk of contamination.
Innovation Solution
A collector device with a container body and a cap that includes an intake port and scrapers to dislodge and collect cut bone from the rongeur, allowing for continuous use without transferring the instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual swiping method is used to remove cut bone from rongeur, then bone collection is achieved, but surgical flow is disrupted and contamination risk increases
Solution Approach 1:
The collector device merges the bone collection function directly into the surgical field by positioning the container body adjacent to the rongeur tip, allowing continuous bone capture without removing the instrument from the surgical site. This integration eliminates the need to relinquish the rongeur to an assistant, maintaining surgical flow and reducing contamination risk.
Solution Approach 2:
The collector acts as an intermediary device between the rongeur and the bone collection process. Instead of directly removing bone with manual swiping, the collector captures bone particles as they are deposited onto its surface, transferring the collection function without requiring direct manual intervention that would disrupt surgical flow.
2Productivity
If surgeon relinquishes instrument to assistant for bone removal, then bone is collected, but surgical interruptions increase
Solution Approach 1:
The collector device enables self-service bone collection by automatically capturing bone particles as they are deposited onto its surface through the opening. The container body continuously collects bone without requiring the surgeon to stop, transfer the instrument, or wait for assistance, eliminating surgical interruptions while maintaining efficient bone collection.
3Productivity
If continuous bone collection is implemented, then surgical flow is maintained, but device complexity increases
Solution Approach 1:
The collector device is segmented into simple, distinct components: a container body with an opening, a cap with an opening for rongeur insertion, and scrapers on the cap interior surface. This segmentation allows each component to perform its specific function independently, achieving continuous bone collection through straightforward mechanical actions rather than complex integrated mechanisms.
4Productivity
If scrapers are added to dislodge bone, then bone collection completeness improves, but device complexity increases
Solution Approach 1:
Instead of adding complex mechanical retrieval mechanisms to pull bone from the rongeur, the design inverts the approach by using simple scrapers that passively dislodge bone particles as the rongeur is inserted and removed. The scrapers work in opposition to the rongeur's movement, using minimal force to release bone particles directly onto the container body surface, achieving complete collection without complex structures.
Data Source
AI summary
A collector used to collect bone includes: a container body defining an interior containment space for receiving and retaining collected bone, and having at least one open end for access and removal of collected bone from the interior containment space; and a cap in covering relation to the open end of the container body such that access to the interior containment space for removal of collected bone is inhibited. The collector includes an intake port defining an opening for receiving therein a distal end of a kerrison rongeur for collecting cut bone from a cutting area thereof, and the cap includes at least one scraper for engaging and dislodging cut bone from the cutting area of a distal end of a kerrison rongeur when received within the intake port. The collector preferably is used with a kerrison rongeur for collecting cut bone therefrom.