Medical Device Placement Assembly With Locking Shaft Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in minimally invasive surgeries is the difficulty in accessing and maintaining the position of multiple medical devices within a patient, leading to prolonged procedures and potential patient injury due to device failure or breakage.
Innovation Solution
A medical device with a shaft, grasping tool, and lock assembly that secures the device to a target site and ancillary device, allowing for fixed positioning without continuous manual control, featuring a threaded lock and anchor nut for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If medical devices are manually controlled during placement and positioning, then the device can be adjusted and positioned, but the procedure time is prolonged and the risk of device failure or breakage increases
Solution Approach 1:
The lock assembly is activated before the device is fully positioned, preliminarily securing the device to the ancillary device. This preliminary action maintains the device in a fixed position, allowing subsequent positioning adjustments without requiring continuous manual control, thereby reducing procedure time while maintaining reliability
Solution Approach 2:
The anchor nut acts as an intermediary between the threaded portion and the ancillary device. By engaging the ancillary device through the lumen, the anchor nut provides a stable connection point that secures the medical device without requiring continuous manual manipulation, thus improving reliability while reducing the time needed for positioning
2Ease of operation
If the medical device is secured to the ancillary device with a lock assembly, then the device position is maintained without continuous manual control, but the device complexity increases
Solution Approach 1:
The lock assembly is segmented into distinct functional components: a threaded portion for engagement, an anchor nut for securing, and a valve for fluid control. This segmentation allows each component to perform its specific function independently, simplifying the overall operation of positioning and securing the device while managing complexity through modular design
3Stability of the object's composition
If the shaft is rigid to maintain position, then the device stability is improved, but the ability to navigate through the patient's body and access target sites is reduced
Solution Approach 1:
The shaft transitions from a flexible state during insertion to a rigid state after positioning. The rigid shaft design is activated after the device reaches the target site, providing stability for the grasping tool while allowing flexibility during the navigation phase, thus resolving the contradiction between stability and adaptability
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
Enhances control and stability of medical devices at target sites, reducing procedure time and minimizing patient harm by maintaining device position without continuous manual manipulation.
Implementation Method 1
The lock includes a threaded portion and an anchor nut coupled to the threaded portion. The anchor nut is rotatable and translatable relative to the threaded portion. The anchor nut is configured to engage the ancillary device and secure the shaft to the ancillary device in response to the anchor nut moving along the threaded portion toward the ancillary device.
Implementation Method 2
The medical device may include a valve at the proximal end of the shaft and configured to inhibit passage of fluid and/or gas from insufflation through the lumen from the opening to the proximal end.
Implementation Method 3
The medical device includes a grasping tool proximate to the distal end of the shaft and configured to fix the distal end relative to a target site.
Data Source
AI summary
A medical device that includes a shaft having a proximal end and a distal end, the shaft defining a lumen extending from the proximal end of the shaft to an opening on a side of the shaft. The medical device includes a grasping tool proximate to the distal end of the shaft and configured to fix the distal end relative to a target site. The medical device further includes a lock at the proximal end of the shaft and configured to fix the proximal end to an ancillary device.