Biopsy Coupler Latch for Push-Pull Intraosseous Release
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Solution Overview
Problem
Existing biopsy systems lack a coupler device that facilitates a bidirectional (push-pull) release of an intraosseous device from a biopsy driver, limiting flexibility and efficiency in bone biopsy procedures.
Innovation Solution
A coupler device with a drive body, distal latch member, and coupler portions that allow for bidirectional release of the intraosseous device by pivoting around a longitudinal axis, accommodating both right-handed and left-handed operations, and enabling easy detachment from the biopsy driver.
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 driveshaft, then the device complexity is reduced, but the ease of operation deteriorates because the operator cannot easily substitute the biopsy needle during the procedure
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 spring-loaded to automatically return to the engaged position after release, providing a simple yet effective mechanism for repeated needle substitutions without requiring complex locking systems
Solution Approach 2:
The coupler device serves as an intermediary component between the driveshaft and the intraosseous device. It includes a drive body with a drive receptacle that interfaces with the driveshaft, and a latch mechanism that secures the intraosseous device. This intermediary structure enables easy substitution of the intraosseous device while maintaining a relatively simple overall system design
2Adaptability or versatility
If a fixed operator arm position is used in the coupler device, then the device complexity is reduced, but the adaptability deteriorates because it cannot accommodate both right-handed and left-handed operations
Solution Approach 1:
The operator arm is made pivotable around the longitudinal axis of the coupler device, adding a rotational degree of freedom. This allows the operator arm to be positioned on either the right or left side of the device, accommodating both right-handed and left-handed operators without requiring multiple different coupler devices
Solution Approach 2:
The operator arm position is made dynamic rather than fixed. The arm can be rotated and locked into position during setup, allowing the same coupler device to adapt to different user preferences. This dynamic positioning capability provides versatility while maintaining a relatively simple single-device design
Data Source
AI summary
A coupler device for interfacing between a biopsy driver and an intraosseous device 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.