Treatment Device Fluid Flow Control for Tissue Adhesion
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Solution Overview
Problem
Existing medical treatment instruments face issues with tissue sticking due to burning during ultrasound or high-frequency energy application, necessitating effective fluid supply mechanisms to prevent adhesion.
Innovation Solution
A treatment device equipped with an end effector having grippers, a fluid channel, and a fluid source, allowing controlled fluid flow based on the end effector's open or closed state, utilizing a clamp or projection mechanism to manage fluid supply, and a controller to adjust the flow rate of physiological saline solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If physiological saline solution is supplied to the treatment portion immediately after energy output, then tissue sticking is suppressed, but device complexity increases due to additional fluid supply mechanisms
Solution Approach 1:
The patent combines the fluid supply channel with the energy delivery structure by integrating the channel within the treatment instrument's existing framework. The channel is positioned to deliver fluid directly to the treatment portion where energy is applied, merging two functions (energy delivery and fluid supply) into a single integrated device, thereby reducing overall system complexity while maintaining effective tissue sticking prevention
Solution Approach 2:
The patent implements preliminary action by supplying physiological saline solution to the treatment portion before energy output occurs. This pre-wetting of the tissue and treatment surface prevents burning and sticking during subsequent energy application, eliminating the need for complex post-energy fluid supply mechanisms and simplifying the overall system design
2Productivity
If fluid flow is controlled based on end effector state, then fluid supply efficiency is improved, but device complexity increases due to control mechanisms
Solution Approach 1:
The patent implements self-service by designing the control mechanism to automatically respond to the end effector's state without requiring external control inputs. The clamp or projection mechanism is mechanically linked to the end effector such that when the end effector closes, the channel is automatically opened to allow fluid flow, and when the end effector opens, the channel closes. This automatic coupling eliminates complex electronic controls while achieving efficient fluid supply timing
Solution Approach 2:
The patent uses a clamp or projection as an intermediary mechanical element that mediates between the end effector's opening/closing state and the fluid channel's open/closed state. This intermediary component translates the mechanical motion of the end effector into corresponding fluid flow control, achieving efficient fluid supply synchronization with minimal added complexity
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 device effectively prevents tissue sticking by supplying physiological saline solution before energy application, improving operability and reducing adhesion risks during treatment.
Implementation Method 1
biological tissue sticks to a treatment portion due to burning of the tissue or the like. In order to suppress the sticking, a physiological saline solution can be supplied to the treatment portion immediately after energy is output
Data Source
AI summary
A treatment device includes: an end effector that includes a pair of grippers for gripping a target region; a channel for supplying a fluid to the end effector; and a fluid source for supplying the fluid to the channel. The treatment device is capable of controlling fluid flow to the end effector based on an open or closed state of the end effector.