Surgical Handle Quick-Mount Assembly With Overload Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing surgical instruments require time-consuming screw-based attachment methods, limiting swift instrument switching during emergency procedures, and lack overload protection features.
Innovation Solution
A handle design with a movable and fixed handle, an internal connecting rod, and a quick-mounting interface with an eccentric locking ring for rapid assembly/disassembly, providing overload protection and secure attachment of various medical instrument heads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw-based attachment method is used, then secure connection is achieved, but assembly time increases significantly
Solution Approach 1:
The connection system is divided into separate components: a connection rod with external threading and a connection sleeve with internal threading. This segmentation allows for quick assembly by simply inserting and rotating the rod into the sleeve, eliminating the need for complex screw fastening while maintaining secure connection through the threaded interface.
Solution Approach 2:
The traditional screw fastening mechanism is extracted and replaced with a simpler insertion and rotation mechanism. The connection rod can be quickly inserted into the connection sleeve and secured with a simple rotational motion, removing the time-consuming aspect of traditional screw assembly while maintaining connection security.
2Productivity
If quick-release mechanism is implemented, then assembly speed increases, but connection stability may be compromised
Solution Approach 1:
The connection rod is pre-formed with external threading and the connection sleeve is pre-formed with internal threading and an eccentric groove. This preliminary preparation allows the components to be quickly assembled through simple insertion and rotation, while the pre-designed threading ensures stable connection without compromising structural integrity.
Solution Approach 2:
The eccentric locking ring with eccentric groove design allows the connection to self-lock during rotation. As the connection rod is rotated into the sleeve, the eccentric groove engages with the locking structure, automatically securing the connection without requiring additional fastening actions, thus maintaining both speed and stability.
3Device complexity
If single-function handle is used, then structure is simple, but adaptability to different instruments is limited
Solution Approach 1:
The handle is designed with a universal connection interface consisting of a connection rod and connection sleeve with standardized threading. This universal interface can accommodate various types of medical instrument heads (scrapers, chisels, bone punches, etc.), allowing a single handle to perform multiple functions and replace different instruments, thereby achieving versatility without increasing structural complexity.
Data Source
AI summary
The present invention relates to a handle with an overload protection feature enabling rapid assembly and disassembly. During cutting operation, overload protection is provided through a handle structure having movable and fixed handle connected together, along with a hollow outer tube radially fixed at rear end to front end of fixed handle. An internal connecting rod is axially inserted into both outer tube and fixed handle. The handle can be rapidly assembled and disassembled, including a handle and a trigger mounted on the handle. The upper end of handle has a quick-mounting interface. Connecting rod is mounted to slide within connection rod cavity, and trigger's actuation end penetrates the connection rod cavity, attaching to the rear end of the connecting rod. This handle can be combined with various types of medical forceps heads to perform different functions and enables quick assembly and disassembly, easy handling, and precise operation.