Surgical Severing Instrument with Integrated Clamping Jaws
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Solution Overview
Problem
Surgical severing instruments often require separate actuation for clamping and cutting jaws, leading to awkward handling and a risk of severed parts not being securely grasped during the cutting procedure.
Innovation Solution
Integration of actuators that move clamping jaws from an initial to a clamping position simultaneously with the cutting jaws, ensuring severed parts are grasped during cutting, with a locking mechanism to retain clamped parts and a detachable clamping unit for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate actuating members are provided for clamping jaws and cutting jaws, then the instrument can perform clamping and cutting functions, but the handling becomes awkward and there is a risk that severed parts are not securely grasped
Solution Approach 1:
The patent combines the actuation of clamping jaws and cutting jaws into a single integrated mechanism. The actuating members are coupled such that moving the cutting jaws from open to cutting position automatically moves the clamping jaws from initial to clamping position, ensuring coordinated action and secure grasping of severed parts without requiring separate manual actuation
Solution Approach 2:
The instrument is designed so that the cutting action itself triggers the clamping action. When the surgeon actuates the cutting jaws to sever tissue or implant parts, the mechanical coupling automatically causes the clamping jaws to close and secure the severed portions, making the system self-regulating and eliminating the need for separate clamping操作步骤
2Productivity
If separate actuating members are provided for clamping jaws and cutting jaws, then independent control is possible, but the procedure becomes complex and time-consuming
Solution Approach 1:
The patent merges the actuation mechanisms for clamping and cutting functions into a unified system. A single actuating input simultaneously controls both the cutting jaws and clamping jaws through mechanical coupling, reducing the number of operational steps and simplifying the overall procedure while maintaining functional independence of both jaw systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves handling by ensuring secure grasping and retention of severed parts during and after cutting, reducing the risk of loss and allowing for easy removal and disposal of clamped components.
Implementation Method 1
a spring element which attempts to move the cutting jaws or the clamping jaws to their open position or initial position engages the severing instrument and/or the clamping jaws
Implementation Method 2
actuators being provided on the surgical severing instrument, which, upon movement of the cutting jaws from the open position to the cutting position, simultaneously move the clamping jaws from their initial position to the clamping position
Data Source
AI summary
In a surgical severing instrument comprising two cutting jaws movable relative to each other from an open position to a cutting position by means of hand grips movable relative to each other, in order to improve the handling, in particular, of the severed parts, it is proposed that two clamping jaws movable relative to each other from an initial position to a clamping position be arranged alongside the cutting jaws, and that actuators be provided on the surgical severing instrument, which, upon movement of the cutting jaws from the open position to the cutting position, simultaneously move the clamping jaws from their initial position to the clamping position.