Suturing Instrument Needle Cover Release Mechanism
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Solution Overview
Problem
Current surgical suturing instruments are complex and prone to operator error, with a high number of components that increase manufacturing costs and reduce efficiency, particularly in fast-paced surgical procedures.
Innovation Solution
A surgical suturing instrument with a simplified mechanical assembly that consolidates features between the cartridge and cartridge receiving assembly, using a single drive rod to actuate and rotate the needle, and incorporating a disposable needle cover for ease of use and reduced complexity, with optional reusable components designed for multiple sterilization cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surgical suturing instruments are used, then suturing function is achieved, but device complexity increases and operator error increases
Solution Approach 1:
The patent combines the cartridge body and cartridge receiving assembly into a single integrated unit, eliminating the need for separate components. The receiving assembly is formed as an integral part of the cartridge body, reducing the total number of parts and simplifying the overall device structure while maintaining full suturing functionality.
Solution Approach 2:
The integrated cartridge design serves multiple functions: it houses the needle, provides the receiving assembly for needle insertion, and maintains structural integrity throughout the suturing process. This multi-functional design reduces the need for separate specialized components.
2Ease of manufacture
If multiple components are used in suturing instruments, then functionality is enhanced, but manufacturing costs increase
Solution Approach 1:
By forming the receiving assembly as an integral part of the cartridge body through single-piece molding or integral construction, the patent eliminates the need for separate manufacturing and assembly processes for individual components, thereby reducing manufacturing costs and simplifying production.
3Productivity
If complex mechanical assembly is used, then suturing capability is improved, but procedural efficiency decreases
Solution Approach 1:
The integration of the receiving assembly into the cartridge body creates a streamlined, simplified mechanical structure that reduces the number of moving parts and assembly steps required during surgical procedures, thereby improving procedural efficiency.
Solution Approach 2:
The cartridge is designed as a self-contained, modular unit that can be quickly prepared and deployed. The integrated design allows for simplified loading and operation sequences, reducing the time and complexity involved in surgical procedures.
Data Source
AI summary
A surgical instrument includes a body, a shaft, a cartridge receiving assembly, and a suture cartridge. The body has an actuator. The cartridge receiving assembly includes a pair of jaws. The suture cartridge includes a cartridge body, a needle, and a needle cover. The needle cover is releasably connected to the cartridge body such that the needle cover surrounds at least a portion of the needle. The needle cover is releasably connected to the body by at least one of a securement or a distal extension. The securement is located between the needle cover and the cartridge body to releasably connect the needle cover to the cartridge body. The distal extension projects from at least one of the first jaw or the second jaw and is configured to engage the needle cover thereby holding the needle cover to the cartridge body in the closed position.