Electrosurgical Transseptal Assembly with Multipurpose Actuator
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Solution Overview
Problem
Current electrosurgical devices for transseptal punctures face challenges in efficiently delivering RF energy to the target tissue, particularly due to cumbersome designs and complex control mechanisms that complicate precise tissue manipulation and energy application.
Innovation Solution
The development of an electrosurgical device with a multipurpose transseptal assembly, featuring a crossing member with a distal tip extendable from the delivery component distal end, coupled with an actuator that extends the tip and delivers RF energy after a selected time delay, simplifying the control process and enhancing precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional electrosurgical device with separate control mechanisms is used, then RF energy can be delivered to tissue, but the control process becomes complex and precise tissue manipulation becomes difficult
Solution Approach 1:
The patent combines the actuator that extends the crossing member and the switch that controls RF energy delivery into a single integrated actuator assembly. This merging of functions simplifies the control mechanism while maintaining precise tissue manipulation capability, directly resolving the contradiction between precision and complexity.
Solution Approach 2:
The single actuator performs multiple functions: it extends the crossing member from the delivery catheter and simultaneously controls the delivery of RF energy to the tissue. This multi-functionality reduces the number of separate control mechanisms needed, thereby reducing device complexity while preserving operational precision.
2Ease of operation
If the crossing member is extended and RF energy is delivered simultaneously, then the procedure is simplified, but there is risk of premature energy delivery before proper positioning
Solution Approach 1:
The crossing member is extended from the delivery catheter first, positioning the electrode at the target site before RF energy delivery is activated. This preliminary action ensures proper positioning is achieved and confirmed before energy application begins, maintaining safety while simplifying the overall control process.
Solution Approach 2:
The integrated actuator provides tactile feedback to the operator during the extension process, allowing confirmation of proper crossing member deployment before RF energy delivery is initiated. This feedback mechanism ensures safe timing of energy delivery while maintaining ease of operation.
3Ease of operation
If multiple separate actuators are used for extending the crossing member and controlling RF energy, then each function can be controlled independently, but the device becomes more complex and harder to operate
Solution Approach 1:
The patent merges the actuator for extending the crossing member and the switch for RF energy control into a single integrated actuator assembly, directly reducing the number of control components and improving ease of operation.
Solution Approach 2:
The single actuator is designed to perform multiple functions sequentially: extending the crossing member and then controlling RF energy delivery. This multi-functional design eliminates the need for multiple separate actuators, simplifying the device while maintaining independent control of each function through sequential operation.
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 solution enables more efficient and precise delivery of RF energy during transseptal punctures, improving the accuracy and ease of use for medical professionals, thereby facilitating safer and more effective procedures.
Implementation Method 1
Electrosurgical devices pass electrical energy through tissue between the electrodes to cut or puncture tissue with plasma formed on the energized electrode. Electrical energy can be applied to the electrodes either as a train of high frequency pulses or as a continuous signal typically in the radiofrequency (RF) range to perform the cutting or puncturing techniques.
Implementation Method 2
cut or puncture tissue with plasma formed on the energized electrode
Implementation Method 3
an actuator coupled to the handle, the actuator configured to extend the crossing member distal tip from the delivery component distal end
Data Source
AI summary
An electrosurgical device for use with a radiofrequency (RF) energy source to provide RF energy is disclosed. The electrosurgical device includes a delivery component having an elongate shaft having a distal portion and a proximal portion and forming a lumen. The distal portion includes a delivery component distal end. A crossing member is disposed within the lumen. The crossing member includes a crossing member distal tip extendable from the delivery component distal end to deliver the RF energy from the RF energy source. A handle is coupled to the proximal portion of the shaft. An actuator is coupled to the handle. The actuator extends the crossing member distal tip from the delivery component distal end and couples the RF energy source to the crossing member such that RF energy is delivered to the distal tip of the crossing member.