Biopsy Needle Fastener Assembly for Rapid Loading
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Solution Overview
Problem
Current biopsy guns require complex and time-consuming operations to load biopsy needles, making the preparation for surgery inefficient.
Innovation Solution
A biopsy needle design that allows for simple and fast assembly and disassembly, utilizing a fastener with T-shaped longitudinal sections and grooves to connect the inner and outer needle assemblies, eliminating the need for forcibly squeezing the needle open.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the biopsy needle is loaded onto the biopsy gun by forcibly squeezing open and pulling out, then the biopsy needle can be loaded onto the biopsy gun, but the assembly process requires many operations and is time-consuming
Solution Approach 1:
The biopsy needle assembly is divided into distinct components: an outer needle assembly, an inner needle assembly, and a fastener. The fastener itself is segmented into a body, a third plug-in portion, and a fourth plug-in portion that separately engage with the outer and inner needle assemblies. This segmentation allows each component to be independently assembled and connected, simplifying the overall loading process and reducing the number of operations required.
Solution Approach 2:
The inner needle assembly is nested within the outer needle assembly, with the inner needle assembly positioned inside the outer needle assembly's hollow structure. The fastener connects these nested components by engaging with both the outer needle assembly's second plug-in portion and the inner needle assembly's first plug-in portion. This nested configuration allows compact storage and simplified handling while maintaining the ability to quickly assemble and disassemble the complete biopsy needle.
2Reliability
If the biopsy needle uses a complex assembly structure with multiple limiting walls and plates, then the connection between components is secure, but the device complexity increases
Solution Approach 1:
The fastener merges multiple functions into a single component: it provides structural support through its body, connects to the outer needle assembly via the fourth plug-in portion, and connects to the inner needle assembly via the third plug-in portion. The limiting walls and limiting plates are integrated into the fastener body rather than being separate components, reducing the total number of parts while maintaining secure connections through the combined structural elements.
Solution Approach 2:
The fastener serves multiple functions simultaneously: it acts as a connector between the outer and inner needle assemblies, provides structural support through its limiting walls and plates, and enables secure engagement through the plug-in portions. The T-shaped longitudinal section design with limiting walls and limiting plates creates a universal connection interface that ensures reliable attachment while maintaining a relatively simple overall structure.
Data Source
AI summary
The present invention provides a biopsy needle and a puncture biopsy apparatus. The biopsy needle includes: an inner needle assembly, including a first plug-in portion plugged in with a fastener; an outer needle assembly, including a second plug-in portion plugged in with the fastener; and the fastener, including a third plug-in portion plugged in with the first plug-in portion, and a fourth plug-in portion plugged in with the second plug-in portion. According to the biopsy needle and the puncture biopsy apparatus provided in the present invention, the biopsy needle can be assembled and disassembled in a simple and fast way, helping reduce preparation time and preparation work for a surgery, thereby improving surgery efficiency.