Segmented Mesh Device for Laparoscopic Prolapse Correction
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Solution Overview
Problem
Current mesh devices for laparoscopic treatment of pelvic organ prolapse are insufficient for achieving durable results, particularly in cases of high-degree multicompartment prolapse with urinary incontinence or obstructed defecation syndrome, especially in overweight patients.
Innovation Solution
A mesh surgical device with a central body and variable pairs of side arms, configured to address specific anatomical defects, is used for laparoscopic suspension, allowing for customizable correction of pelvic organ prolapse by being fixed to the pubocervical fascia and uterine isthmus, with side arms remedying ligament deficits and correcting multiple defects simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If simple two-arm mesh is used for POPS or LLS technique, then the intervention is easier to perform, but it cannot appropriately correct advanced cystocele associated with structural failure of pubocervical fascia and detachment of vaginal wall
Solution Approach 1:
The mesh device is divided into multiple functional components: a central body portion and multiple pairs of side arms (first, second, and third pairs), each serving specific anatomical correction purposes. This segmentation allows the device to address multiple defects simultaneously while maintaining ease of laparoscopic deployment.
Solution Approach 2:
The mesh device is designed with multi-functionality to correct various types of pelvic organ prolapse including central defects, anterior defects (cystocele), and lateral defects. The central body addresses central and anterior defects while the side arms remedy lateral defects and ligament deficits, making the device universally applicable to high-degree multicompartment prolapse.
2Ease of operation
If pre-shaped meshes are used to improve practicality, then the surgeon does not need to cut the mesh at the moment of use, but the mesh cannot be customized to address specific anatomical defects
Solution Approach 1:
The mesh device is pre-shaped during manufacturing with a central body and multiple pairs of side arms in predetermined configurations. This preliminary action eliminates the need for intraoperative cutting and shaping, while the pre-designed geometry is specifically optimized to address common anatomical defects in pelvic organ prolapse.
Solution Approach 2:
Different portions of the mesh device have different geometries and configurations tailored to specific anatomical requirements. The central body is designed for central and anterior defect correction, while each pair of side arms has specific orientations and lengths to address lateral defects and ligament deficits in different pelvic compartments.
3Duration of action of stationary object
If mesh is fixed to pubocervical fascia and uterine isthmus, then durable support is achieved, but traction forces concentrate at few points causing potential tissue damage
Solution Approach 1:
The fixation points are segmented into multiple locations: the central body attaches to the pubocervical fascia and uterine isthmus, while multiple pairs of side arms attach to lateral pelvic structures at different positions. This segmentation distributes the traction forces across numerous attachment points, reducing stress concentration at any single point and minimizing tissue damage risk.
Data Source
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AI summary
A mesh surgical device (1; 1a; 1b; 1c), usable for the laparoscopic correction of a pelvic organ prolapse, comprises a central body (2) and a variable number of side arms (3a, 3b; 4a, 4b; 5a, 5b), said variable number of side arms being equal to two, four or six.