Handheld Electrocoagulation Cutter With Segmented Irrigation And Suction Channels

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Solution Overview

Problem

Existing electrocoagulation cutters face issues with tissue blockage in pipelines during suction operations and poor cleaning effects due to shared irrigation and suction pipelines.

Innovation Solution

A manual control handheld pressure-adjustable irrigation and suction electrocoagulation cutter is designed with separate irrigation and suction channels, a mechanical conveying mechanism to prevent tissue blockage, and a partition block to ensure independent operation of irrigation and suction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a shared pipeline is used for both irrigation and suction, then the device complexity is reduced, but the cleaning effect deteriorates and tissue blockage risk increases

Engineering Contradiction:
Improvepipeline structureVSAvoidcleaning effect
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent divides the single shared pipeline into separate irrigation and suction channels within the connecting rod. The irrigation channel and suction channel are spatially separated and independently controlled, allowing irrigation fluid to flow through one channel while suction operates through another, preventing tissue blockage and improving cleaning effectiveness.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a shared pipeline is used for both irrigation and suction, then the device structure is simplified, but the risk of tissue blockage increases

Engineering Contradiction:
Improvepipeline structureVSAvoidtissue blockage risk
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent implements separate irrigation and suction channels that are spatially segmented within the connecting rod. This segmentation prevents tissue debris suctioned through the suction channel from blocking the irrigation channel, eliminating the tissue blockage risk associated with shared pipelines.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a three-way valve as an intermediary component that controls the flow direction of irrigation fluid. This valve acts as a mediator between the irrigation pump and the separate channels, allowing precise control of irrigation flow to prevent tissue blockage while maintaining simplified operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If irrigation fluid is reused after passing through the body, then fluid consumption is reduced, but the cleaning effect deteriorates due to fluid remaining on pipe walls

Engineering Contradiction:
Improveirrigation fluid consumptionVSAvoidcleaning effect
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent segments the irrigation and suction pathways into separate channels, allowing irrigation fluid to flow through the irrigation channel while debris is removed through the suction channel. This segmentation ensures that irrigation fluid does not mix with debris and can be effectively reused, maintaining cleaning effectiveness while reducing fluid consumption.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12303186B2Manual control handheld pressure-adjustable irrigation and suction electrocoagulation cutter
Publication Date: 2025.05.20 NANJING DRUM TOWER HOSPITAL
  • US12303186B2 patent drawing
  • US12303186B2 patent drawing
  • US12303186B2 patent drawing

AI summary

The present invention relates to the technical field of electrocoagulation cutters, and in particular, to a manual control handheld pressure-adjustable irrigation and suction electrocoagulation cutter, including: a connecting rod, wherein an irrigation channel and a suction channel which are spaced apart from each other are formed in the connecting rod; a cutting head is arranged at a left end of the connecting rod; a suction port communicated to the suction channel is provided on the cutting head; a head end of the irrigation channel penetrates through the left end of the connecting rod; a connecting head is arranged at a right end of the connecting rod; a mechanical conveying mechanism configured to convey tissue debris cut by the electrocoagulation cutter from a tail end of the suction channel to a middle way of the connecting head is arranged on the connecting rod; an irrigation joint and a suction joint are respectively arranged at front and rear ways of the connecting head; a partition block configured to partition the front way of the connecting head from the other two ways is arranged in the connecting head; an adjustment valve communicated to a tail end of the irrigation channel is arranged in the middle of the connecting rod; and a conveying pipe is arranged between the adjustment valve and the front way of the connecting head. The present invention provides an electrocoagulation cutter capable of avoiding pipeline blockage and good cleaning effect.