Biopsy Device Jaw and Suction Tube Integration
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Solution Overview
Problem
Current endoscopic biopsy devices require repetitive insertion, actuation, and withdrawal to acquire multiple tissue samples, which is inefficient and may cause tissue damage, and often necessitate additional force or suction to sever and retrieve samples.
Innovation Solution
A biopsy device with a first jaw and a second jaw pivotally connected through a pivot, featuring a lever arm and a suction tube, allowing for simultaneous tissue sampling and sample retrieval without withdrawing the instrument, facilitated by a wire mechanism and suction system for efficient sample collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single biopsy forceps device is used to take multiple tissue samples, then the device must be repeatedly inserted, actuated, and withdrawn, but this process is inefficient and causes tissue damage
Solution Approach 1:
The biopsy device is divided into multiple independent jaw pairs (first jaw pair and second jaw pair) that can simultaneously capture multiple tissue samples in a single insertion, eliminating the need for repeated insertions and improving procedural efficiency
Solution Approach 2:
Multiple biopsy functions are combined into a single device operation, allowing simultaneous tissue capture and suction retrieval through integrated first and second jaw pairs working together during one insertion cycle
2Force
If additional pulling or closing force is applied to sever tissue samples, then the tissue sample can be severed, but this may cause tissue damage
Solution Approach 1:
A suction system is integrated into the biopsy device to retrieve tissue samples through negative pressure, eliminating the need for additional manual pulling or closing forces that could damage the tissue samples
Solution Approach 2:
The suction system acts as an intermediary mechanism between the jaw closure action and tissue severing, providing a gentler method to separate and retrieve tissue samples without direct mechanical forcing
3Ease of operation
If the biopsy forceps device is withdrawn to collect the tissue sample, then the single biopsy sample can be collected, but this reduces efficiency for multiple samples
Solution Approach 1:
The tissue capture and retrieval functions are merged into a single continuous operation, where multiple samples are captured by multiple jaw pairs and simultaneously retrieved through the suction system without device withdrawal
Solution Approach 2:
The biopsy procedure maintains continuous useful action by keeping the device inserted while simultaneously capturing and retrieving multiple tissue samples through the integrated suction system, eliminating idle withdrawal and reinsertion cycles
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
Enables efficient acquisition and retrieval of multiple tissue samples with reduced tissue damage and increased operational ease, as the device can sever and collect samples using suction, improving the biopsy process by integrating a wire mechanism and suction system for sample handling.
Implementation Method 1
A suction tube is disposed between the first and second jaw
Data Source
AI summary
A biopsy device includes a first jaw and a second jaw pivotally connected to the first jaw through a pivot. The second jaw has a lever arm extending rearward from the pivot when the second jaw is closed. A wire having an end is connected to the lever arm of the second jaw. A suction tube is disposed between the first and second jaw.