Ultrasonic Tissue Treatment Pad Structure for Current Path Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing treatment tools using ultrasonic vibrations and high-frequency current for body tissue treatment face issues with unintended impacts on non-treatment areas due to temperature increases and conductive paths leading to unintended tissue contact.
Innovation Solution
The treatment tool incorporates an ultrasonic blade with an insulating coating and a gripper with an integrated insulating abutting and protruding structure, limiting the conductive path and reducing unintended tissue contact by using an electrically insulating material to cover non-treatment areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gripper uses a conductive material to supply high-frequency current, then the high-frequency current can be effectively supplied to the treatment target, but unintended conductive paths may cause harmful effects on non-treatment areas
Solution Approach 1:
The gripper is designed with local quality differentiation: the distal end portion (treatment area) is made of conductive material to supply high-frequency current, while the proximal end portion (non-treatment area) is made of electrically insulating material to prevent unintended conductive paths. This localized material property assignment resolves the contradiction between effective current supply and prevention of harmful effects.
Solution Approach 2:
The gripper is segmented into multiple portions with different electrical properties: a conductive distal end portion for treatment and an insulating proximal end portion for safety. This segmentation allows the gripper to simultaneously achieve effective high-frequency current supply to the treatment target and prevent unintended conductive paths to non-treatment areas.
2Power
If the ultrasonic blade operates at high power, then effective treatment energy can be delivered, but temperature increase may cause unintended impacts on surrounding tissue
Solution Approach 1:
An electrically insulating coating is applied to the surface of the ultrasonic blade. This thin film layer allows the blade to operate at high power for effective treatment while preventing unintended thermal effects on surrounding tissue by providing electrical insulation and controlling heat distribution.
3Reliability
If the gripper closes completely on the ultrasonic blade, then secure grip on the treatment target is achieved, but conductive contact may create unintended current paths
Solution Approach 1:
The gripper employs local quality differentiation with an insulating proximal end portion and conductive distal end portion. This allows the gripper to close securely on the ultrasonic blade for reliable treatment while the insulating material prevents unintended conductive paths, resolving the contradiction between grip security and current path control.
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
This design effectively reduces unintended impacts on body tissue by limiting conductive paths and maintaining a focused treatment area, ensuring precise and safe application of ultrasonic and high-frequency energy.
Implementation Method 1
an ultrasonic blade that includes a treatment face having a first face and having a second face adjacent to the first face, the ultrasonic blade being configured to supply ultrasonic vibration and high-frequency current from the treatment face to a body tissue
Implementation Method 2
the ultrasonic blade being configured to supply ultrasonic vibration and high-frequency current from the treatment face to a body tissue; the gripper includes an electrode configured to open and close with respect to the ultrasonic blade to grip the body tissue between the gripper and the ultrasonic blade and supply the high-frequency current to the gripped body tissue
Implementation Method 3
an abutting portion that is made of an electrically insulating material and is disposed in the gripper, the abutting portion being configured to abut against the first face when the gripper closes with respect to the ultrasonic blade; a protruding portion that is made of an electrically insulating material, is spaced apart from the abutting portion in the gripper, and protrudes toward the second face
Data Source
AI summary
A treatment tool includes: an ultrasonic blade that includes a treatment face having a first face and having a second face adjacent to the first face; a gripper that includes an electrode configured to open and close with respect to the ultrasonic blade to grip a body tissue between the gripper and the ultrasonic blade; an abutting portion that is made of an electrically insulating material and is disposed in the gripper, the abutting portion being configured to abut against the first face when the gripper closes with respect to the ultrasonic blade; and a protruding portion that is made of an electrically insulating material, is spaced apart from the abutting portion in the gripper, and protrudes toward the second face.