Surgical Device Inner End Fixation and Control Nesting
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Solution Overview
Problem
Current surgical devices for minimal invasive surgeries, such as NOTES and SPLS, lack the ability to perform all steps of the procedure reliably and safely, with issues in instrument fixation, triangulation, and compatibility with laparoscopic techniques, leading to potential complications like organ injury and bleeding.
Innovation Solution
A laparo-endoscopic system with synchronized inner and outer ends, force transmission units, and articulations that allow for simultaneous movement and fixation, enabling all steps of NOTES, SPLS, and IE procedures to be performed with improved safety and efficiency, similar to traditional laparoscopic techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible endoscopic instruments are inserted through the working channels of an endoscopic tube-like device, then the NOTES procedure can be performed, but the fixation of the inner ends of the instruments and the endoscopic tube-like device remains unsolved
Solution Approach 1:
A fixation device is introduced as an intermediary element between the endoscopic tube-like device and the instruments. This fixation device includes a fixation element that can be engaged with the inner ends of the instruments and the endoscopic tube-like device, providing reliable connection and coordination during the NOTES procedure
2Ease of operation
If a bulky device is attached to the outer end of the endoscopic tube-like device to control the inner ends of the instruments, then the instruments become controllable, but the device requires extended room when more than two instruments are inserted
Solution Approach 1:
The control mechanism is nested within the endoscopic tube-like device structure rather than being attached as a separate bulky external device. The fixation device and control elements are integrated into the existing tube structure, allowing instrument control without requiring extended external space
3Adaptability or versatility
If the currently available devices are used for NOTES interventions, then single steps of the procedure can be performed, but the procedures are not reliable and are difficult and awkward to use
Solution Approach 1:
Multiple previously separate devices and functions are merged into an integrated system. The endoscopic tube-like device, fixation device, and instrument control mechanisms are combined into a unified structure that performs multiple steps of the NOTES procedure reliably and is easier to operate
4Adaptability or versatility
If new kind of maneuvers are required for the endoscopic device, then the device can function as designed, but it disturbs the well prepared and reliable laparoscopic maneuvers
Solution Approach 1:
Instead of requiring surgeons to learn entirely new maneuvers for endoscopic devices, the device is designed to work with inverted control logic where the fixation device and control mechanisms enable traditional laparoscopic-style maneuvers to be performed through the endoscopic access route, maintaining familiarity and reliability
Data Source
AI summary
A device for surgical interventions comprises (i) an inner end (1) guidable/steerable to an operation field, (ii) an outer end (3) operated by user and (iii) a middle part (2) which connects both ends (1, 3) together. Force transmission units extend between the outer end (3) and the inner end (1). The force transmission units, the outer and the inner ends and the middle part (2) transfer movements of the outer end (3) to the inner end (1) in an identical measure, as if the inner end (1) was a straight continuation of the outer end (3).