A method of preparing a rotator cuff patch

Abstract

The application relates to the field of rotator cuff surgery, in particular to a preparation method of a rotator cuff patch, which comprises the following steps: obtaining operation data, building an initial model of the rotator cuff patch; determining a mesh wire diameter according to different rotator cuff tear conditions, and weaving a plurality of patch mesh ropes; determining an operation condition, designing a mesh hole size of the rotator cuff patch, and weaving a special mesh hole; carrying out zoned weaving on the rotator cuff patch; determining a general mesh hole size, and weaving a general mesh hole; correcting a mesh knot; determining a size adjustment rope position, and setting the size adjustment rope; obtaining operation information, and determining a size of the rotator cuff patch; cutting a primary fixing assembly according to the size of the rotator cuff patch; setting a connecting assembly at one end of the rotator cuff patch; and performing a rotator cuff patch implantation operation. The application has the effect that the rotator cuff patch can adapt to various operation conditions.

Description

Technical Field

[0001] This application relates to the field of rotator cuff surgery, and more particularly to a method for preparing a rotator cuff patch. Background Technology

[0002] The rotator cuff is a sleeve-like structure formed by the tendons of the supraspinatus, infraspinatus, teres minor, and subscapularis muscles wrapping around the head of the humerus. These tendons stabilize the humeral head against the glenoid fossa, playing a crucial role in shoulder joint stability and maintaining joint mobility. Injury to these tendons can cause shoulder pain and dysfunction. Statistics show that the incidence of rotator cuff injuries is as high as 31% in people aged 60-69, and is estimated to reach 65% in those over 80. A rotator cuff tear is a serious injury. A large rotator cuff tear is defined as a tear >5cm or involving ≥2 tendons. Rotator cuff tears are difficult to heal on their own. Some patients with rotator cuff injuries can alleviate or relieve symptoms through conservative treatment, but patients with severe rotator cuff tears usually require surgery. The re-tear rate after surgery for patients with large rotator cuff tears is still as high as 30%-70%. With improvements in repair instruments and techniques, more and more patients are choosing surgical repair.

[0003] Among the rotator cuff patches commonly used in surgical repair, biological patches can guide tissue regeneration but have lower mechanical strength, while synthetic patches have better mechanical properties but poor biocompatibility and tissue regeneration ability. Therefore, designing rotator cuff patches with excellent mechanical strength and good biocompatibility is of great significance for the treatment of rotator cuff injuries.

[0004] Regarding the aforementioned technologies, the inventors believe that existing rotator cuff patches have the drawback of not being able to use the appropriate rotator cuff patch according to the actual situation during surgery. Summary of the Invention

[0005] To enable rotator cuff patches to adapt to various surgical conditions, this application provides a method for preparing a rotator cuff patch.

[0006] This application provides a method for preparing a rotator cuff patch, which adopts the following technical solution: A method for preparing a rotator cuff patch includes the following steps: Acquire surgical data and construct an initial model of the rotator cuff patch; Determine the mesh diameter based on the different types of rotator cuff tears, and weave multiple patch mesh cords; Determine the surgical details, design the mesh size of the rotator cuff patch, and weave the special mesh. The shoulder and sleeve patch is knitted in sections; Determine the standard mesh size and weave the standard mesh; Correct the network knot; Determine the position of the size adjustment rope and set the size adjustment rope; Obtain surgical information and determine the rotator cuff patch size; Cut the initial fixing components according to the shoulder and sleeve patch dimensions; A connecting component is provided at one end of the shoulder and sleeve patch; Perform rotator cuff patch implantation surgery.

[0007] By adopting the above technical solution, rotator cuff patches of different thicknesses, sizes, and mesh sizes can be woven to meet different surgical needs. In some cases, rotator cuff patches can be customized according to each individual's specific situation. First, the patient's surgical data is obtained, and an initial model of the rotator cuff patch is built based on the size and location of the patient's tear. The diameter of the mesh wire is determined according to different situations, and different patch net ropes are woven using different numbers of mesh wires according to different locations. This allows the rotator cuff patch to be woven in sections, so that the thickness of the rotator cuff patch in each section is different. When there are multiple surgeries in a day, the data of different patients are recorded, and the rotator cuff patch is woven in sections on the same rotator cuff patch according to the different patients' situations. The size and thickness of the mesh knots are adjusted to determine the size of the rotator cuff patch for different patients. According to the different sizes of different sections, corresponding preliminary fixing components can be cut to fix the rotator cuff patch. When it is determined to be used, different rotator cuff patches are spliced ​​together along the thickness or length direction through connecting components, and finally the surgery is performed. This method is suitable for a variety of surgical situations and is convenient and quick.

[0008] Preferably, the step of determining the mesh diameter according to different rotator cuff tears and weaving multiple patch mesh cords includes the following steps: Obtain the required patch cord diameter; The diameter of the mesh wire is determined based on the precision of different patch mesh ropes; Multiple wires are woven together to form a patchwork rope.

[0009] By adopting the above technical solution, the diameter of the mesh cord for this part is determined according to the different thickness requirements of the shoulder sleeve patch in different surgeries. If the mesh cord requires high precision, the diameter of the mesh wire cannot be too large or too small. The higher the precision requirement, the smaller the diameter of the mesh wire. Different diameter mesh wires are selected according to different needs, and different numbers of mesh wires are used to weave mesh cords of different thicknesses.

[0010] Preferably, the step of weaving multiple mesh wires to form a patch mesh rope includes the following steps: Multiple mesh fibers were obtained by electrospinning. Multiple wires are woven together to obtain a patch rope of the required diameter.

[0011] By adopting the above technical solution, electrospinning can quickly achieve the spinning and weaving process, thereby rapidly obtaining the net rope.

[0012] Preferably, the mesh wire can be made of a high-molecular synthetic material with high biocompatibility.

[0013] By adopting the above technical solutions, polymer synthetic materials have better compatibility with the human body, reducing the probability of rejection reactions in patients and making them safer and more reliable.

[0014] Preferably, the steps of determining the surgical situation, designing the mesh size of the rotator cuff patch, and weaving the special mesh include: The tear is categorized into different ranges based on its size; The required mesh size for the surgery is determined based on the extent of the tear. The woven shoulder and sleeve patches have different mesh sizes to accommodate different areas of pre-cut tear holes.

[0015] By adopting the above technical solution, the surgical space required for lacerations of different sizes is different. After being divided into different ranges, the mesh size required for lacerations within the same range will be fixed, which facilitates the preparation of rotator cuff patches and thus quickly adapts to various surgical situations.

[0016] Preferably, the different sized meshes are reserved on the same shoulder and sleeve patch or on different shoulder and sleeve patches.

[0017] By adopting the above technical solution, if the rotator cuff patch is reserved on the same rotator cuff patch, the rotator cuff patch needs to be large enough and different areas need to be adapted to different surgical conditions to facilitate cutting during the operation. If the rotator cuff patch is reserved on different rotator cuff patches, the required size rotator cuff patch can be directly picked up according to the needs of the operation, which is convenient and quick.

[0018] Preferably, the step of knitting the shoulder and sleeve patch in sections includes: The shoulder and sleeve patch is divided into multiple pieces; Different sizes of special mesh are distributed on multiple shoulder and sleeve patches; Each shoulder and sleeve patch has a center area, a transition area, and an edge area; Weaving is done according to the different needs of the central area, transition area, and peripheral area.

[0019] By adopting the above technical solution, if different special meshes are distributed on the same rotator cuff patch, each area should be divided into different zones to better adapt to surgical conditions, and different zones should be woven in different ways.

[0020] Preferably, the central region has the largest thickness, the edge region has the smallest thickness, the transition region is located between the central region and the edge region, and the thickness trend of the transition region from the edge region to the central region is that the thickness of the transition region gradually increases from the thickness of the edge region to the thickness of the central region.

[0021] By adopting the above technical solution, the different thicknesses in different areas can make it easier for the body to move after surgery, and can guide the regrowth of rotator cuff wounds, which is beneficial to recovery.

[0022] Preferably, the modified mesh knot includes the following steps; Adjust the size of the knots according to the location of different special mesh holes and the thickness of the shoulder and sleeve patches in different areas.

[0023] By adopting the above technical solution, in order to avoid the patient experiencing a foreign body sensation after implantation, it is necessary to adjust both the size and thickness of the mesh knot.

[0024] Preferably, determining the position of the size adjustment rope and setting the size adjustment rope includes the following steps: Each mesh size controllable patch cord is woven into the same patch cord during the weaving process; Leave the end of the mesh cord pre-installed; simply pull the end of the cord to adjust the mesh size.

[0025] By adopting the above technical solution, the size of the mesh can be adjusted using patch wires to better adapt to various surgical situations, offering greater flexibility.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. To address the diverse surgical needs, rotator cuff patches of varying thicknesses, sizes, and mesh sizes can be woven as required. In some cases, rotator cuff patches can be customized to suit individual circumstances. First, the patient's surgical data is obtained. Based on the size and location of the tear, an initial model of the rotator cuff patch is constructed. The diameter of the mesh wire is determined according to different situations, and different patch cords are woven using varying numbers of mesh wires for different locations. This allows for zoned weaving of the rotator cuff patch, ensuring that the thickness of the patch varies in each zone. When multiple surgeries are performed in a day, data from different patients is recorded. Zoned weaving is then performed on the same rotator cuff patch for each patient's specific needs, adjusting the size and thickness of the knots to determine the patch dimensions for each patient. Preliminary fixing components of corresponding sizes can be cut to fix the rotator cuff patch according to the different sizes of each zone. When ready for use, different rotator cuff patches are spliced ​​together along the thickness or length direction using connecting components before surgery. This method is adaptable to various surgical situations, offering convenience and speed.

[0027] 2. Determine the diameter of the mesh cord for this part of the patch based on the different thickness requirements in different surgeries for the shoulder sleeve patch. If the mesh cord requires high precision, the diameter of the mesh wire cannot be too large or too small. The higher the precision requirement, the smaller the diameter of the mesh wire. Select mesh wires of different diameters according to different needs, and use different numbers of mesh wires to weave mesh cords of different thicknesses.

[0028] 3. If the rotator cuff patch is reserved on the same rotator cuff patch, the rotator cuff patch needs to be large enough and adaptable to different surgical conditions in different areas to facilitate cutting during the operation. If the rotator cuff patch is reserved on different rotator cuff patches, the required size rotator cuff patch can be directly picked up according to the needs of the operation, which is convenient and quick. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall process of a method for preparing a shoulder sleeve patch according to an embodiment of this application; Figure 2 This is a structural diagram illustrating a mesh shoulder and sleeve patch; Figure 3 This is a structural diagram illustrating another type of mesh shoulder and sleeve patch; Figure 4 This is a schematic diagram illustrating the structure of the shoulder and sleeve patch used in combination with the other two. Detailed Implementation

[0030] Normally, the supraspinatus and deltoid muscles act as both a force couple and synergists, working together to perform shoulder abduction. When the shoulder joint performs abduction and flexion movements repeatedly over a long period, the rotator cuff repeatedly impacts the acromion and coracoacromial ligament, causing chronic rotator cuff injury or even tearing. In addition, sudden, powerful trauma can also cause rotator cuff tears. After a tear, the tendon will retract and degenerate. For rotator cuff surgery, the purpose of a rotator cuff patch is to "reinforce" or "replace" the rotator cuff tendon.

[0031] The corresponding patch application techniques are reinforcement (coverage) and insertion (intermediate) techniques. Reinforcement techniques are suitable for torn tendons with degenerative lesions such as fatty infiltration, but where anatomical repair can still be achieved under tension-free or low-tension conditions. The patch is used to cover and reinforce the degenerated rotator cuff tendon. Insertion techniques are suitable for torn tendons with significant retraction and large defects between the tendon ends, making bridging and coverage of the humeral footprint area impossible under tension-free or low-tension conditions. The patch is used to bridge the tendon ends and the humeral attachment point.

[0032] Regardless of the source of the patch, an ideal patch material should have the following characteristics: it should be able to withstand the tension concentrated at the suture graft interface, have no immune rejection reaction, and have an appropriate degradation rate, persisting at least until the repaired tendon heals.

[0033] The following is in conjunction with the appendix Figure 1-4This application will be described in further detail.

[0034] This application discloses a method for preparing a rotator cuff patch. (Refer to...) Figure 1 and Figure 2 and Figure 2 The preparation method of the rotator cuff patch includes the following steps: Reference Figure 1 and Figure 2 Step 1: Obtain surgical data and construct an initial model of the rotator cuff patch; For different surgical situations, rotator cuff patches of different thicknesses, sizes, and mesh sizes can be woven as needed. In some cases, rotator cuff patches can be customized according to each individual's specific situation. First, the patient's surgical data is obtained, and an initial model of the rotator cuff patch is built based on the size and location of the patient's tear.

[0035] Reference Figure 1 and Figure 2 Step 2: Determine the mesh diameter according to different rotator cuff tears and weave multiple patch mesh cords; The process of determining the mesh diameter based on different rotator cuff tears and weaving multiple patch mesh cords includes the following steps: Obtain the required patch cord diameter; The diameter of the mesh wire is determined based on the precision of different patch mesh ropes; Multiple wires are woven together to form a patchwork rope.

[0036] The diameter of the mesh cord used to weave the patch is determined based on the different thickness requirements of the patch in different surgeries. If the mesh cord requires high precision, the diameter of the mesh wire cannot be too large or too small. The higher the precision requirement, the smaller the diameter of the mesh wire. Different diameter mesh wires are selected according to different needs, and different numbers of mesh wires are used to weave the patch mesh cord of different thicknesses.

[0037] Optionally, multiple mesh wires can be woven together to form a patch mesh rope, including the following steps: Multiple mesh fibers were obtained by electrospinning. Multiple wires are woven together to obtain a patch rope of the required diameter.

[0038] Electrospinning can quickly achieve the spinning and weaving process, thus rapidly obtaining netting ropes.

[0039] The mesh can be made of biocompatible synthetic polymers. Suitable synthetic materials include polyethylene terephthalate (PET), polypropylene, polyethylene, polycarbonate, polyurethane, polylactic acid (PLA), polyglycolic acid (PEG), and polycaprolactone (VCT), while natural materials include chitosan and silk fibroin. Considering factors such as biomechanical strength and material availability, PET and polypropylene are preferred for non-degradable fibers, while PLA and VDT are preferred for biodegradable fibers. Synthetic polymers offer superior biocompatibility, reducing the probability of rejection and ensuring greater safety and reliability.

[0040] Reference Figure 1 and Figure 2 Step 3: Determine the surgical situation, design the mesh size of the rotator cuff patch, and weave the special mesh. The process of determining the surgical details, designing the mesh size of the rotator cuff patch, and weaving the special mesh includes the following steps: The tear is categorized into different ranges based on its size; The required mesh size for the surgery is determined based on the extent of the tear. The woven shoulder and sleeve patches have different mesh sizes to accommodate different areas of pre-cut tear holes.

[0041] Different sizes of tears require different surgical spaces. After dividing the tears into different ranges, the mesh size required for tears within the same range will be fixed, which facilitates the preparation of rotator cuff patches and allows for rapid adaptation to various surgical situations.

[0042] Optionally, different mesh sizes can be pre-cut on the same rotator cuff patch or on different rotator cuff patches. If pre-cut on the same rotator cuff patch, the patch needs to be large enough and adaptable to different surgical conditions in different areas to facilitate cutting during surgery. If pre-cut on different rotator cuff patches, the required size patch can be directly selected according to the surgical needs, which is convenient and quick.

[0043] Reference Figure 1 and Figure 2 Step 4: Knit the shoulder and sleeve patch in sections; The section knitting of the shoulder and sleeve patch includes the following steps: The shoulder and sleeve patch is divided into multiple pieces; Different sizes of special mesh are distributed on multiple shoulder and sleeve patches; Each shoulder and sleeve patch has a center area, a transition area, and an edge area; Weaving is done according to the different needs of the central area, transition area, and peripheral area.

[0044] If different special meshes are distributed on the same rotator cuff patch, each area should be divided into different zones to better adapt to surgical conditions, and these zones should be woven in different ways. The central zone should be the thickest, the peripheral zone the thinnest, and the transition zone should be located between the central and peripheral zones. The thickness of the transition zone should gradually increase from the peripheral zone to the central zone. These varying thicknesses in different zones allow for easier movement after surgery and can guide the regrowth of the rotator cuff wound, promoting recovery.

[0045] Reference Figure 1 and Figure 2 Step 5: Determine the general mesh size and weave the general mesh. Reference Figure 1 and Figure 2 Step 6: Correct the network knots; The process of correcting the network knot includes the following steps; The size of the mesh knots is adjusted according to the location of different special mesh openings and the thickness of the rotator cuff patch in different areas. To avoid a foreign body sensation in patients after implantation, both the size and thickness of the mesh knots need to be adjusted.

[0046] Reference Figure 1 and Figure 2 Step 7: Determine the position of the size adjustment rope and set the size adjustment rope; The step of determining the position of the size adjustment rope and setting the size adjustment rope includes the following steps: Each mesh size controllable patch cord is woven into the same patch cord during the weaving process; Leave the end of the mesh cord pre-installed; simply pull the end of the cord to adjust the mesh size.

[0047] The size of the mesh can be adjusted using patch cords to better adapt to various surgical situations, offering greater flexibility.

[0048] Reference Figure 1 and Figure 2 Step 8: Obtain surgical information and determine the rotator cuff patch size; Among them, individual weaving or cutting can be selected based on the obtained patch size.

[0049] Reference Figure 3 and Figure 4 Step 9: Cut the initial fixing components according to the shoulder and sleeve patch size; Reference Figure 3 and Figure 4 Step 10: Set a connecting component at one end of the shoulder and sleeve patch; Step 11: Perform rotator cuff patch implantation surgery.

[0050] The implementation principle of this application embodiment is as follows: For different surgical situations, rotator cuff patches of different thicknesses, sizes, and mesh sizes can be woven as needed. In some cases, rotator cuff patches can be customized according to each individual's specific situation. First, the patient's surgical data is obtained, and an initial model of the rotator cuff patch is constructed based on the size and location of the patient's tear. The diameter of the mesh wire is determined according to different situations, and different patch net ropes are woven using different numbers of mesh wires according to different locations. This allows the rotator cuff patch to be woven in sections, so that the thickness of the rotator cuff patch in each section is different. When there are multiple surgeries in a day, the data of different patients are recorded, and the rotator cuff patch is woven in sections on the same rotator cuff patch according to the different patients' situations. The size and thickness of the mesh knots are adjusted to determine the size of the rotator cuff patch for different patients. According to the different sizes of different sections, preliminary fixing components of corresponding sizes can be cut to fix the rotator cuff patch. When it is determined to be used, different rotator cuff patches are spliced ​​together along the thickness or length direction through connecting components, and finally the surgery is performed. This method is suitable for various surgical situations and is convenient and quick.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for preparing a rotator cuff patch, characterized in that, Includes the following steps: Acquire surgical data and construct an initial model of the rotator cuff patch; Determine the mesh diameter based on the different types of rotator cuff tears, and weave multiple patch mesh cords; Determine the surgical details, design the mesh size of the rotator cuff patch, and weave the special mesh. The shoulder and sleeve patch is knitted in sections; Determine the standard mesh size and weave the standard mesh; Correct the network knot; Determine the position of the size adjustment rope and set the size adjustment rope; Obtain surgical information and determine the rotator cuff patch size; Cut the initial fixing components according to the shoulder and sleeve patch dimensions; A connecting component is provided at one end of the shoulder and sleeve patch; Perform rotator cuff patch implantation surgery; The process of determining the mesh diameter based on different rotator cuff tears and weaving multiple patch mesh cords includes the following steps: Obtain the required patch cord diameter; The diameter of the mesh wire is determined based on the precision of different patch mesh ropes; Multiple mesh wires are woven together to form patchwork rope; The process of determining the surgical details, designing the mesh size of the rotator cuff patch, and weaving the special mesh includes the following steps: The tear is categorized into different ranges based on its size; The required mesh size for the surgery is determined based on the extent of the tear. The shoulder and sleeve patch is woven with different mesh sizes reserved for different ranges of tearing. The section knitting of the shoulder and sleeve patch includes the following steps: The shoulder and sleeve patch is divided into multiple pieces; Different sizes of special mesh are distributed on multiple shoulder and sleeve patches; Each shoulder and sleeve patch has a center area, a transition area, and an edge area; Weaving is done according to the different needs of the central area, transition area, and peripheral area; The steps of determining the position of the size adjustment rope and setting the size adjustment rope include: Each patch cord with controllable mesh size is woven into the same patch cord during the weaving process; Leave the end of the mesh cord pre-installed; simply pull the end of the cord to adjust the mesh size.

2. The method for preparing a rotator cuff patch according to claim 1, characterized in that: The method of weaving multiple mesh wires to form a patch mesh rope includes the following steps: Multiple mesh fibers were obtained by electrospinning. Multiple wires are woven together to obtain a patch rope of the required diameter.

3. The method for preparing a shoulder and cuff patch according to claim 2, characterized in that: The mesh is made of a high-molecular synthetic material that is highly compatible with the human body.

4. The method for preparing a rotator cuff patch according to claim 1, characterized in that: The different sized meshes are reserved on the same shoulder and sleeve patch, or on different shoulder and sleeve patches.

5. The method for preparing a rotator cuff patch according to claim 1, characterized in that: The central region has the greatest thickness, the edge region has the smallest thickness, and the transition region is located between the central region and the edge region. The thickness of the transition region changes from the edge region to the central region by gradually increasing from the thickness of the edge region to the thickness of the central region.

6. The method for preparing a rotator cuff patch according to claim 1, characterized in that: The modified network knot includes the following steps: Adjust the size of the knots according to the location of different special mesh holes and the thickness of the shoulder and sleeve patches in different areas.

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