Surgical Adapter Load Button Decoupled from Sensor
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Solution Overview
Problem
Existing surgical devices with rotary motion drive systems are not compatible with linearly driven end effectors, requiring adapters with locking and release mechanisms to interface and operate these end effectors effectively.
Innovation Solution
A surgical device adapter featuring a sensor link assembly, load link, and lock spring mechanism that allows for coupling and decoupling of end effectors with rotary-driven surgical devices, enabling the conversion of rotary motion to linear motion for operating end effectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adapter is designed to interface linear-driven end effectors with rotary-driven surgical devices, then compatibility between different drive systems is improved, but device complexity increases due to the need for locking and release mechanisms
Solution Approach 1:
The adapter is divided into distinct functional segments: a sensor link assembly for detection, a load link for force transmission, and a lock spring for securing the end effector. This segmentation allows each component to perform its specific function independently, resolving the contradiction by making the complex adapter modular and manageable while maintaining compatibility.
Solution Approach 2:
The adapter acts as an intermediary device between the rotary-driven surgical device and the linear-driven end effector. It includes a bayonet connection that serves as a mediator to convert rotary motion to linear motion, enabling compatibility between different drive systems while isolating the complexity within the adapter itself.
2Reliability
If a locking mechanism is added to secure the end effector to the adapter, then reliability of the connection is improved, but ease of operation deteriorates due to additional steps required for coupling and decoupling
Solution Approach 1:
The lock spring is pre-loaded and positioned to automatically engage with the sensor link assembly when the end effector is inserted into the adapter. This preliminary positioning ensures that the locking action occurs automatically during the coupling process, maintaining reliability without requiring additional manual steps from the operator.
Solution Approach 2:
The locking mechanism is designed to be self-actuating through the insertion motion itself. As the end effector is inserted, the load link moves proximally, which automatically triggers the lock spring to engage and secure the connection. This self-service mechanism maintains reliability while preserving ease of operation.
3Measurement precision
If a sensor link assembly is coupled to the end effector for detection purposes, then measurement precision is improved, but device complexity increases due to additional components
Solution Approach 1:
The sensor link assembly is merged with the load link mechanism, combining the detection function with the existing force transmission component. The sensor link assembly utilizes the same proximal movement of the load link to trigger sensor detection, thereby improving measurement precision without adding independent complex components.
Solution Approach 2:
The sensor link assembly serves multiple functions: it detects the coupling status of the end effector, monitors the position of the load link, and triggers the appropriate sensor signals. This multi-functionality improves measurement precision while minimizing the increase in device complexity by making the sensor system versatile.
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
Enables the secure and efficient operation of linearly driven end effectors with rotary-driven surgical devices, ensuring proper alignment and operation of end effectors during surgical procedures.
Implementation Method 1
a biasing member configured to move the sensor link assembly from a first position to a second position
Implementation Method 2
a lock spring configured to lock or release the sensor link assembly based on a position of the load link
Data Source
AI summary
A surgical device is provided. The surgical device includes: a jaw assembly comprising a first jaw and a second jaw moveable relative to the first jaw and an elongated body removably coupled to a proximal end of the jaw assembly. The elongated body includes an actuation bar movable upon engagement of the jaw assembly with the elongated body to secure the jaw assembly thereto; a release button coupled to the actuation bar such that the release button is movable by the actuation bar upon engagement of the jaw assembly with the elongated body and the release button is configured to move the actuation bar to allow for removal of the jaw assembly from the elongated body; and a lockout button in mechanical cooperation with the release button, the lockout button configured to prevent actuation of the release button.