Biopsy Marker Delivery Device With Integrated Alignment
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Solution Overview
Problem
Current biopsy devices lack an efficient method for marking biopsy sites for future reference, and existing marker deployment tools are not seamlessly integrated with biopsy procedures, leading to inefficiencies in site marking and marker deployment.
Innovation Solution
A biopsy device with a marker delivery system that includes a flexible deployer tube and a push rod, allowing for single-handed operation to deploy markers through a lateral aperture of the biopsy needle or cannula, ensuring precise alignment and deployment of markers at the biopsy site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate marker deployment tools are used, then marker deployment capability is provided, but procedural efficiency deteriorates due to lack of integration with biopsy procedures
Solution Approach 1:
The patent combines the biopsy needle and marker deployment tool into a single integrated device. The marker delivery catheter is inserted through the biopsy needle, and the marker is deployed through the lateral aperture of the needle, eliminating the need for separate tools and improving procedural efficiency.
Solution Approach 2:
The integrated device serves multiple functions: it performs both tissue biopsy and marker deployment through a single instrument. The biopsy needle maintains its primary function while the added catheter system enables marker delivery, allowing one device to accomplish what previously required separate tools.
2Measurement precision
If manual alignment methods are used, then marker deployment is possible, but alignment precision deteriorates
Solution Approach 1:
The patent replaces manual alignment with a mechanical guidance system. The marker delivery catheter is constrained to move along a guide wire that is already positioned at the target site, ensuring precise alignment without requiring manual dexterity for positioning.
Solution Approach 2:
The guide wire acts as an intermediary element between the operator and the marker delivery system. It provides a pre-established pathway that automatically ensures accurate positioning of the marker at the biopsy site, eliminating the need for complex manual alignment procedures.
3Ease of operation
If tethered biopsy devices are used, then control capability is improved, but ease of operation deteriorates due to tether management
Solution Approach 1:
The patent removes the tether from the system, creating a tetherless biopsy device. The device is fully operable without being connected to external control modules, eliminating the complexity of tether management while maintaining full functionality through self-contained mechanisms.
Solution Approach 2:
The device is designed to be self-operating with all necessary functions integrated into the handheld unit. The user can control biopsy and marker deployment without external tethers, making the device autonomous and eliminating the need for tether routing, connection management, and external power sources.
Data Source
AI summary
A biopsy system includes a biopsy device operable for taking one or more biopsy samples from a patient and a marker delivery device. The biopsy device includes a body portion having an alignment feature and a hollow biopsy needle extending distally from the body portion. The marker delivery device includes a marker deployer tube and an alignment feature associated with the marker deployer tube. The alignment feature on the marker delivery device is configured to matingly engage with the alignment feature on the biopsy device. A marker delivery device includes a resilient marker guide ramp.