Linear Anastomosis Clamp and Stapler for Vessel Closure
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Solution Overview
Problem
Current surgical anastomosis methods, particularly circumferential suturing, are time-consuming and prone to vessel damage, and mechanical methods face challenges with limited space in surgical environments, especially when using vessel clamps.
Innovation Solution
An anastomosis device comprising a stapler with clamp jaws and an anvil, featuring staple magazines and drivers for simultaneous staple deployment, along with adjustable engagement structures for precise vessel closure, allowing for efficient and space-efficient anastomosis without the need for extensive clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If circumferential suturing is used for anastomosis, then vessel ends can be joined, but the process is time-consuming and labor-intensive
Solution Approach 1:
The patent replaces the manual mechanical suturing system with an automated stapling system. The stapler device uses a driver mechanism to automatically drive staples through vessel walls, eliminating the need for manual needle handling and suture tying. This mechanical substitution dramatically reduces anastomosis time while maintaining reliable vessel joining through standardized staple deployment.
Solution Approach 2:
The invention changes the fundamental parameter of how vessel ends are joined - from continuous suture material to discrete staples. This parameter change transforms the process from a time-consuming continuous manipulation to a rapid sequential stapling action, where multiple staples can be deployed in quick succession to achieve secure anastomosis.
2Reliability
If circumferential suturing is performed, then vessel ends can be secured, but physical manipulation may damage vessel ends
Solution Approach 1:
The stapling system replaces the complex manual manipulation required for suturing with a controlled mechanical stapling action. The staples are driven perpendicularly through the vessel walls with precise force control, minimizing lateral manipulation and physical stress on the vessel ends. This substitution reduces mechanical trauma while achieving secure attachment.
Solution Approach 2:
The device performs preliminary clamping and positioning of the vessel ends before stapling. The clamp holds the vessels in proper alignment and the driver mechanism pre-positions the staples, ensuring that the actual stapling action occurs with minimal additional manipulation. This preliminary preparation prevents damage during the critical joining phase.
3Reliability
If vessel clamps are used alongside anastomosis devices, then vessels can be clamped during procedure, but space in surgical environment is limited
Solution Approach 1:
The patent merges the clamping function and anastomosis function into a single integrated device. The stapler includes built-in clamp jaws that can secure the vessels, eliminating the need for separate clamp instruments. This consolidation reduces the number of discrete tools required in the limited surgical space while maintaining reliable vessel clamping throughout the anastomosis procedure.
Solution Approach 2:
The stapler device is designed with multi-functionality, serving both as a clamp for vessel securing and as a stapling device for anastomosis. The same device performs multiple functions that previously required separate instruments, optimizing space utilization in the constrained surgical environment while maintaining all necessary functions for successful anastomosis.
Data Source
AI summary
An anastomosis device includes a stapler and an anvil. The stapler includes a clamp head with opposing first and second clamp jaws and a clamp actuator and clamp lock. Staple magazines are connected to the clamp jaws for retaining a plurality of staples in an array, and drivers are provided for moving the plurality of staples in the array out of the staple magazine. An anvil includes a clamp head with opposing first and second clamp jaws, a clamp actuator and a clamp lock. Anvil portions are connected to the clamp jaws. The stapler detachably engages to the anvil, and aligns the staple magazines with the anvils. The drivers are operated to move the staples from the staple magazines into contact with the anvil portions. A method for performing anastomosis is also disclosed.