Tension-free inguinal hernia repair patch for endoscope and design method of tension-free inguinal hernia repair patch

A technology of inguinal hernia and design method, applied in design optimization/simulation, calculation, special data processing application, etc., can solve problems such as increasing the risk of postoperative recurrence, and achieve the effect of preventing mesh displacement

CN114569283APending Publication Date: 2022-06-03THE SIXTH AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-06-03

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Abstract

The invention relates to an auxiliary technology of inguinal hernia tension-free repair for an endoscope, in particular to an inguinal hernia tension-free repair patch for the endoscope and a design method of the inguinal hernia tension-free repair patch. The method comprises the steps that a plurality of anatomical points within the range of a muscular pubis hole and reflecting the space structure of the muscular pubis hole are determined; the observation index of the muscular pubis hole space structure is researched; the positioning of anatomical points of the muscular pubis hole space structure is researched; carrying out three-dimensional reconstruction on a muscle pubis hole space structure, carrying out three-dimensional positioning on an anatomical point, and carrying out quantitative analysis on the size and the three-dimensional structure of the muscle pubis hole; calculating the space distance between the anatomical points of the muscular pubis hole and the space angle of the corresponding space surface, and obtaining the length range of the intersecting edges of a plurality of anatomical planes of the muscular pubis hole, the space angle range of the vertex angle of each anatomical plane and the dihedral angle range between the anatomical planes; and designing specific parameters of the patch by using a parametric modeling technology. Different patch models can be manufactured according to different hernia types, and the patch can be effectively prevented from shifting in an operation.
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Description

technical field

[0001] The invention relates to a tension-free repair patch for inguinal hernia for laparoscopy based on quantitative description of the space structure of the myopubic foramen, in particular to a tension-free repair patch for inguinal hernia for laparoscopy and a design method thereof. Background technique

[0002] Inguinal hernia repair is one of the most common procedures in the world, performed by more than 20 million people each year. While most cases are successful, 10-15% of recurrent cases require reoperation, and 10-12% of patients have long-term disability due to chronic pain (pain lasting more than 3 months), approximately 1-3% of these patients have severe chronic pain.

[0003] The musculopubic foramen is approximately quadrilateral with four borders: upper, lower, inner and outer. It is an area without muscle and weak collagen fibers in the groin. The upper bound is the muscles of the anterolateral abdominal wall, including the external obliqu...

Examples

Embodiment

[0033] This embodiment provides a method for designing a tension-free patch for endoscopic inguinal hernia repair based on the quantitative description of the spatial structure of the myopubic foramen, and a tension-free patch for endoscopic inguinal hernia obtained according to the design method.

[0034] In the patch design method of this embodiment, the spatial structure of the myopubic foramen is quantitatively analyzed by using the MIMICS (Materialise's interactive medical image control system) software three-dimensional reconstruction technology (or similar three-dimensional reconstruction technology), and then the UG (Unigraphics NX) parameters are used. The specific parameters of the patch designed by the chemical modeling technology include the following steps:

[0035] S1. Determine the anatomical landmarks of the scope of the myopubic foramen, such as Picture 1-1 , Figure 1-2 shown, 7 anatomical points reflecting the spatial structure of the myopubic foramen, where ...