Biopsy Coupler Latch for Push-Pull Intraosseous Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current biopsy systems lack a coupler device that facilitates bidirectional release of intraosseous devices from biopsy drivers, limiting the ease and efficiency of needle substitution during bone biopsy procedures.
Innovation Solution
A coupler device with a drive body, distal latch member, and bidirectionally operable distal coupler portion, allowing for both push-pull release mechanisms to securely latch and release the intraosseous device from the biopsy driver, accommodating right- or left-handed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-direction release mechanism is used to connect the biopsy needle to the motorized drill, then the device complexity is reduced, but the ease of operation deteriorates because needle substitution becomes less efficient
Solution Approach 1:
The coupler device employs a dynamic latch member that can transition between engaged and disengaged states through bidirectional actuation. The latch member is designed to respond to forces applied in either direction along the longitudinal axis, enabling flexible release operations that improve ease of needle substitution while maintaining manageable device complexity through intelligent mechanical design
2Ease of operation
If a bidirectional release mechanism is implemented in the coupler device, then the ease of operation improves for needle substitution, but the device complexity increases
Solution Approach 1:
The coupler device is segmented into distinct functional components: a body housing, an actuator mechanism, a latch member, and drive shaft interfaces. This segmentation allows each component to perform its specific function independently, making the overall bidirectional release mechanism more manageable and easier to manufacture despite the increased operational capability
Solution Approach 2:
The coupler device is designed as a universal interface that can accommodate different intraosseous devices and drill types. The bidirectional release mechanism serves multiple functions: securing the device during operation, enabling quick release in either direction, and facilitating needle substitution. This multi-functionality justifies the increased complexity by providing versatile operational capabilities
3Productivity
If a quick release mechanism is used, then the productivity improves during bone biopsy procedures, but the reliability may deteriorate due to potential accidental release
Solution Approach 1:
The latch member is designed with preliminary engagement features that automatically secure the intraosseous device to the drive shaft upon insertion. The spring-loaded mechanism pre-positions the latch to engage with the drive shaft grooves before the procedure begins, ensuring reliable connection while still allowing quick release when intentionally actuated by the operator
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A coupler device (16) for interfacing between a biopsy driver (12) and an intraosseous device (14) includes a drive body having a distal drive receptacle. The drive body is rotatable around a longitudinal axis. The distal drive receptacle is configured to drivably couple to a drive portion of the intraosseous device. A distal coupler portion is coupled to the drive body and is configured to operate a distal latch member. The distal latch member latches the drive body to the intraosseous device when the distal coupler portion is in a distal coupler latch position. The distal coupler portion has a distal housing portion that is movable in either of a distal direction or a proximal direction. The distal coupler portion has a distal release position and a proximal release position. The distal housing portion is configured to move the distal coupler portion to a release position to operate the distal latch member.