Biopsy Device Fluid Delivery for Specimen Cleaning
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Solution Overview
Problem
Existing biopsy devices face challenges in effectively separating and removing tissue specimens from the device, especially when the specimens are located in subcutaneous sites, as they often get entangled with blood and debris, making it difficult to extract and analyze the tissue samples efficiently.
Innovation Solution
A biopsy system that includes a tissue collector with a fluid delivery and vacuum system to flush blood and debris from the specimens, using a fluid like saline to clean the specimens and a vacuum to aspirate them, allowing for easy removal and pathological examination, with a tissue cutter and probe designed for precise tissue sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a small instrument is inserted into the patient's body to access subcutaneous sites for biopsy, then surgical intrusion is minimized, but it becomes difficult to separate and remove tissue specimens from the device due to entanglement with blood and debris
Solution Approach 1:
The patent extracts the harmful elements (blood and debris) from the specimen by introducing a flushing fluid through a fluid delivery conduit. The fluid flows through the tissue collector to wash away blood and debris that are entangled with the specimen, separating the clean specimen from the contaminants so the specimen can be easily removed for analysis
Solution Approach 2:
The patent introduces a flushing fluid as an intermediary substance between the contaminated specimen and the clean collection environment. This fluid mediator carries away the blood and debris through the fluid delivery system, enabling separation without requiring direct mechanical manipulation of the entangled specimen
2Quantity of substance
If tissue specimens are collected in a tissue collector, then specimens can be gathered for analysis, but blood and debris become entangled with specimens making them difficult to separate and remove
Solution Approach 1:
The patent extracts blood and debris from the tissue collector by introducing a flushing fluid that flows through the collector and carries the contaminants away. This extraction process separates the clean tissue specimens from the blood and debris, making specimen removal easier while preserving the collected quantity of tissue
Solution Approach 2:
The patent uses hydraulic principles by introducing a fluid through the fluid delivery conduit to flush and wash the tissue specimens. The fluid flow dynamically removes blood and debris from the collector, enabling easy specimen separation while maintaining efficient collection capability
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 system enables efficient collection and removal of tissue specimens by flushing away blood and debris, ensuring clean and intact samples for analysis, minimizing surgical intrusion and improving the diagnostic process.
Implementation Method 1
A first conduit is in fluid communication with the interior of the tissue collector to deliver fluid to one or more specimens in the interior of the collector
Implementation Method 2
A vacuum may be generated within the tissue collector to remove the fluid from the specimens
Data Source
AI summary
An apparatus for collecting one or more tissue specimens includes a tissue specimen collector having a cannula receiving opening, a vacuum opening, and an interior. The vacuum opening is on a first axis, and the cannula receiving opening is on a second axis. A removable tissue specimen retaining member is positioned within the interior of the tissue specimen collector. The removable tissue specimen retaining member has a plurality of openings that are interposed between the first axis of the vacuum opening and the second axis of the cannula receiving opening. The removable tissue specimen retaining member is movable along the second axis. An elongated tissue cutting member extends through the cannula receiving opening of the tissue specimen collector to position a proximal end of the elongated cutting member in the interior above the plurality of openings of the removable tissue specimen retaining member.