Cryoadhesion Apparatus Remote Control Assembly
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Solution Overview
Problem
Existing cryoadhesion devices for medical procedures are cumbersome and pose safety hazards due to the complexity of cables and pipelines required for operation, making it difficult for doctors to perform surgeries efficiently and safely.
Innovation Solution
A cryoadhesion apparatus featuring a remote control assembly with a sheath structure that houses a needle catheter assembly, allowing for control of freezing and catheter manipulation using a remote control, thereby eliminating the need for pedals and main machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible cryoprobe connected to a main machine with a large gas cylinder and pedal switch is used, then cryoadhesion function is achieved, but the surgery becomes complex and inconvenient requiring both hands and feet
Solution Approach 1:
The device is divided into modular components: a disposable needle catheter assembly and a reusable handle assembly. This segmentation allows the complex gas delivery system to be pre-integrated into the handle, eliminating the need for external main machines and large gas cylinders during surgery, thereby reducing operational complexity while maintaining cryoadhesion function.
Solution Approach 2:
The handle assembly integrates the gas cylinder connection, valve control, and remote control functionality into a single unit. The remote control is mounted on the handle, merging what were previously separate control systems into one integrated device, reducing the number of separate components and simplifying the surgical setup.
2Reliability
If multiple cables and pipelines are added for connecting the cryoadhesion device, then cryoadhesion function is achieved, but safety hazards increase due to snagging or snapping risks
Solution Approach 1:
The design extracts and eliminates the external main machine and its associated cables and pipelines from the surgical field. The gas delivery system is integrated into the disposable needle catheter assembly and handle, removing the need for long connecting cables and pipelines that could snag or snap, thereby improving safety without compromising the cryoadhesion function.
3Adaptability or versatility
If the doctor needs to operate both the endoscope and cryoadhesion device simultaneously, then comprehensive control is achieved, but operation difficulty increases requiring coordination of multiple devices
Solution Approach 1:
The remote control for the cryoadhesion device is mounted on the handle assembly, allowing the doctor to control both the endoscope and cryoadhesion functions from a single location. This merging of control interfaces reduces the need to switch between separate control devices, making simultaneous operation of multiple functions more manageable and less difficult.
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
The apparatus simplifies the operation of transluminal cryoadhesion surgeries by allowing one-handed control of freezing and catheter manipulation, enhancing safety and convenience while reducing the need for extensive equipment and space.
Implementation Method 1
the needle catheter assembly is capable of moving along with the sheath structure under a frictional force between an inner wall of the catheter channel and the needle catheter assembly
Implementation Method 2
the valve assembly is configured to transport, when receiving the trigger signal, gas from the gas cylinder to the needle catheter assembly, to enable the needle catheter assembly to perform freezing
Implementation Method 3
refrigeration is performed at a needle to cause adhesion with a tissue
Data Source
AI summary
A cryoadhesion apparatus includes a remote control assembly, a valve assembly, a needle catheter assembly, and a gas cylinder, the remote control assembly includes a sheath structure and a remote control, the sheath structure is provided with a catheter channel for the needle catheter assembly to pass through, two ends of the valve assembly are respectively connected to the needle catheter assembly and the gas bottle; the sheath structure is capable of squeezing the needle catheter assembly, when squeezing is maintained, the needle catheter assembly is capable of moving along with the sheath structure under a frictional force between an inner wall of the catheter channel and the needle catheter assembly; the remote control is configured to, when triggered, send a trigger signal to the valve assembly; the valve assembly is configured to transport, when receiving the trigger signal, a gas from the gas cylinder to the needle catheter assembly.