Biopsy Device Slide-In Probe and Vacuum Control
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Solution Overview
Problem
Current biopsy devices lack an efficient and user-friendly mechanism for obtaining and storing tissue samples, particularly in a way that allows for single-handed operation and easy sample retrieval, while maintaining sterility and operational simplicity.
Innovation Solution
A biopsy device comprising a separable probe and holster with a needle that extends distally for tissue sampling, a tissue sample holder for storing samples, and a vacuum control module for fluid communication, allowing for pneumatically assisted sample collection and storage, with a user-friendly interface for operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a biopsy device uses a separable probe and holster design with pneumatic vacuum assistance, then sample collection efficiency and storage capability are improved, but device complexity increases
Solution Approach 1:
The biopsy device is divided into separable components including a probe portion and a holster portion. The probe contains the needle and sample collection mechanisms, while the holster houses the vacuum control module and sample storage chambers. This segmentation allows for improved sample collection efficiency through specialized pneumatic mechanisms while managing complexity by separating functional modules.
Solution Approach 2:
A vacuum control module is integrated into the holster, providing fluid communication with the probe and needle assembly. The pneumatic vacuum system assists in drawing tissue samples into the needle and transferring them to storage chambers, significantly improving sample collection efficiency and automation while the modular design manages the inherent complexity of pneumatic systems.
2Ease of operation
If a biopsy device enables single-handed operation with integrated sample storage, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The device combines multiple functions into an integrated system: the needle for tissue sampling, the sample holder for storage, and the vacuum control module for automated sample retrieval are merged into a single operable unit. The separable probe and holster design allows these functions to be combined in a way that enables single-handed operation while managing complexity through modular architecture.
Solution Approach 2:
The vacuum control module automatically draws tissue samples into the needle and transfers them to the sample storage chambers without requiring manual intervention for each step. This self-service mechanism improves ease of operation by automating the sample collection and storage process, while the modular design keeps the automated mechanisms contained within specific modules.
3Adaptability or versatility
If a biopsy device uses multiple separable components for specialized functions, then adaptability is improved, but ease of manufacture worsens
Solution Approach 1:
The biopsy device is segmented into a probe portion and a holster portion, each with specialized functions. The probe is designed for tissue access and sample collection, while the holster provides vacuum control and sample storage. This segmentation improves adaptability by allowing each module to be optimized for its specific function while managing manufacturing complexity through standardized interfaces and modular assembly.
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, single-handed tissue sampling and storage with enhanced user control and sterility, facilitating easy retrieval and analysis of biopsy samples.
Implementation Method 1
a vacuum control module for fluid communication, allowing for pneumatically assisted sample collection and storage
Data Source
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AI summary
An exemplary ultrasound biopsy device includes a probe and a holster. The probe is insertable into the holster to form a completed assembly. To assemble the probe to the holster, the probe is initially slid laterally onto the holster and then slid forward to latch the probe into engagement with the holster. The holster is coupled to a vacuum control module by one or more conduits and a power cable. The conduits and/or power cable may be retracted into the vacuum control module. The probe of the biopsy device includes a blade assembly at the distal end. The blade assembly comprises a blade that snaps onto a nosecone via a pair of resilient notched ends. A frictional fitting needle cover can be inserted over the needle and blade assembly to protect the user from the sharp blade.