Tissue Punch with Integrated Liquid Conduit and Suction Channel
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Solution Overview
Problem
Existing tissue and bone punches lack versatility and efficient suction capabilities, making them less effective for removing various types of tissue parts from the body.
Innovation Solution
A device with a conduit for supplying liquid to the cutting and punching mouth, where the liquid assists in flushing and aspirating tissue parts, and the guide rail and slide rail are coupled only at the distal end to form a scissors-like cutting action, with the slide rail forming a suction channel for efficient tissue removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional tissue punch is used with separate cutting and aspiration components, then the device structure is simple, but the suction efficiency is poor and the device lacks versatility
Solution Approach 1:
The patent combines the cutting function and aspiration function into a single integrated device. The cutting mouth is directly connected to the suction channel, allowing simultaneous cutting and aspiration of tissue parts. This merging of functions resolves the contradiction by achieving efficient suction through integration while maintaining relatively simple device structure.
Solution Approach 2:
The device is designed to perform multiple functions: cutting tissue parts, aspirating the cut tissue, and flushing the operating site. The cutting mouth can be configured with different geometries for various tissue types, and the integrated suction channel handles both tissue removal and fluid management. This multi-functionality improves productivity without significantly increasing device complexity.
2Ease of operation
If the guide rail and slide rail are connected along their entire length, then the structural stability is high, but the scissors-like cutting action is insufficient
Solution Approach 1:
The connection between guide rail and slide rail is segmented rather than continuous. The rails are connected at intervals along their length, with specific focus on distal end connection. This segmentation allows the cutting edges to interact with greater freedom, creating an effective scissors-like cutting action while maintaining sufficient structural stability through the spaced connections.
3Productivity
If liquid supply is added to improve flushing and aspiration, then the tissue removal efficiency is improved, but the device complexity increases
Solution Approach 1:
The liquid supply conduit is integrated with the existing suction channel structure. The conduit delivers liquid directly to the cutting mouth region, and the same suction channel that removes tissue parts also removes the flushing liquid. This merging of liquid supply and aspiration pathways improves tissue removal efficiency by creating a flushing effect without adding separate complex liquid management systems.
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 enhances tissue removal efficiency by creating a flushing and aspiration system that improves the scissors-like cutting action and allows for efficient aspiration of tissue parts without additional aspiration effort, making it more versatile for different tissue types.
Implementation Method 1
a conduit for supplying a liquid is assigned to the cutting and punching mouth. This liquid not only serves to flush the operating site but is also intended to be largely aspirated together with the tissue part that is to be removed
Implementation Method 2
the slide rail forming a suction channel for efficient tissue removal... allows for efficient aspiration of tissue parts
Implementation Method 3
the guide rail and the slide rail form, in the distal region, a cutting or punching mouth for severing the tissue part... the two cutting edges interact like scissors
Data Source
AI summary
A device for severing and removing tissue parts (20), from a body of a living being, by means of a fixed guide rail (1, 30) along which a slide rail (6, 31) is movable, wherein the guide rail (1, 30) and the slide rail (6, 31) form, in the distal region, a cutting or punching mouth (17, 32) for severing the tissue part (20), wherein a conduit (18) for supplying a liquid is assigned to the cutting or punching mouth (17).