CN219397748U - Rotator cuff patch for repairing musculoskeletal tissue - Google Patents
Rotator cuff patch for repairing musculoskeletal tissue Download PDFInfo
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- CN219397748U CN219397748U CN202222150522.2U CN202222150522U CN219397748U CN 219397748 U CN219397748 U CN 219397748U CN 202222150522 U CN202222150522 U CN 202222150522U CN 219397748 U CN219397748 U CN 219397748U
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Abstract
The utility model discloses a rotator cuff patch for repairing musculoskeletal tissue, which is characterized in that: comprises a collagen porous material and a chemical fiber fabric, wherein the collagen porous material is made of type I collagen; the chemical fiber fabric is coated by a collagen porous material and is made of spinnable polymer; the fabric structure of the chemical fiber fabric is a woven structure, the woven structure consists of warp yarns and weft yarns, and the chemical fiber fabric is divided into three areas of an imitation bone area, an imitation tendon area and an imitation muscle area along the weft yarn direction. The rotator cuff patch for repairing musculoskeletal tissue can segment the mechanical characteristics of bionic bones, tendons and muscles and chemical components and topological structures beneficial to growth on the basis of ensuring continuous production, is suitable for weight construction of rotator cuff bearing functions of patients, and can induce accurate repair of the rotator cuff structure of bionic human body of affected tissues.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a rotator cuff patch for repairing musculoskeletal tissue.
Background
The rotator cuff is a sleeve-like muscle-like structure formed by tendons of supraspinatus, subspinatus, subscapularis and small circular muscles in front of, on and behind the humeral head, and the functions of controlling and rotating the arm are realized. When overstress is applied to the rotator cuff tendon, the rotator cuff tendon can be subjected to inflammation and degradation, pain, lipidation and calcification are caused, the mechanical property of the tendon is reduced, and finally partial thickness tearing and full layer tearing are generated.
After the shoulder sleeve oversleeve-like muscle group is damaged, the shoulder joint pain and the physiological function are reduced. Patients with damaged rotator cuff and patients with large-area damaged rotator cuff with ineffective conservative treatment usually adopt a surgical treatment method, and the patients need to receive rotator cuff repair operation.
In rotator cuff repair surgery, rotator cuff patches based on synthetic materials are widely used to reconstruct rotator cuff function due to wide sources, controllable composition, and adjustable performance; the prior clinical rotator cuff patch is homogeneous along rotator cuff tissue direction for convenient continuous production on the basis of ensuring mechanical strength. The rotator cuff muscular bone system comprises three tissues of bones, tendons and muscles, the three tissues have obvious differences in the requirements of micro environments such as components, structures and the like, and the market rotator cuff patch products with the same homogeneity and isomorphism are difficult to meet the requirements of specific bionic repair. In addition, there are often differences in the rotator cuff defect of the patient, and the rotator cuff patch needs to be adapted according to the patient's condition during the repair operation. Therefore, developing a segmented bionic bone-tendon-muscle characteristic, clinically easy to adapt to the cut rotator cuff patch, is an important point of rotator cuff tissue clinical repair.
Disclosure of Invention
The utility model aims to provide a rotator cuff patch for repairing musculoskeletal tissues, which solves the problems in the prior art, ensures that the rotator cuff patch is integrated, simultaneously performs segmental bionic operation, is beneficial to the mechanical characteristics and component structural environments of bone-tendon-musculature growth, and is convenient for adapting cutting and accurate repairing according to the illness state of patients.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a rotator cuff patch for repairing musculoskeletal tissue, which comprises the following components:
a collagen porous material, wherein the collagen porous material is made of type I collagen;
a chemical fiber fabric, wherein the chemical fiber fabric is coated by the collagen porous material, and the chemical fiber fabric is made of spinnable polymer; the chemical fiber fabric is characterized in that the fabric structure of the chemical fiber fabric is a woven structure, the woven structure consists of warp yarns and weft yarns, and the chemical fiber fabric is divided into three areas of a bone-imitation area, a tendon-imitation area and a muscle-imitation area along the weft yarn direction.
In one embodiment, the fibrous component of the spinnable polymer is polyethylene terephthalate or polylactic acid.
In one embodiment, the woven structure is specifically a plain, twill or satin structure.
In one embodiment, the twist angle of the monofilaments of the warp and weft yarns is 0-45 °.
In one embodiment, the weft yarns are in particular multifilament yarns of side-by-side bicomponent fibers or multifilament yarns of profiled-section fibers.
In one embodiment, the weft yarns are multifilament yarns of side-by-side bicomponent fibers, the weft yarns of the simulated bone area and the simulated tendon area are macroscopically in a vertical form along the weft yarn direction, and the weft yarns of the simulated muscle area are macroscopically in a curled form; the diameter of the circumcircle of the monofilament of the weft yarn is 10-60 mu m.
In one embodiment, the weft yarn is multifilament yarn of profiled-section fiber, and the monofilament of the weft yarn has a circumcircle diameter of 10-30 μm.
In one embodiment, the warp yarns used in the simulated bone region have a diameter of 10-30 μm and the warp yarns used in the simulated bone region comprise polymeric multifilament yarns of bone active nanoparticles.
In one embodiment, the warp yarns used in the tendon-like and muscle-like regions have a diameter of 10-30 μm, and the warp yarns used in the tendon-like and muscle-like regions are round pure phase polymer multifilament yarns.
Compared with the prior art, the utility model has the following beneficial technical effects:
the rotator cuff patch for repairing the musculoskeletal tissue overcomes the defect of homogeneous isomorphism of commercial rotator cuff patch products along the rotator cuff tissue direction on the basis of ensuring continuous production, can segment the mechanical characteristics of bionic bones, tendons and muscles, and chemical components and topological structures beneficial to growth, and can induce the accurate repair of the bionic human rotator cuff structure of the affected tissue while being suitable for reconstructing the rotator cuff bearing function of a patient. In addition, the rotator cuff patch is easy to cut and process in clinical use, and can be matched with the defects of rotator cuff bones, tendons and muscles of affected parts and the priorities of two requirements of functional reconstruction and tissue repair.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a chemical fiber fabric in example 1;
FIG. 2 is a schematic structural view of the chemical fiber fabric in example 2;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a rotator cuff patch for repairing musculoskeletal tissues, which solves the problems in the prior art, ensures that the rotator cuff patch is integrated, simultaneously performs segmental bionic operation, is beneficial to the mechanical characteristics and component structural environments of bone-tendon-musculature growth, and is convenient to tailor and accurately repair according to patient conditions.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The present embodiment provides a rotator cuff patch for repairing musculoskeletal tissue, comprising:
a collagen porous material, wherein the collagen porous material is made of I-type collagen;
a chemical fiber fabric, wherein the chemical fiber fabric is coated by a collagen porous material, and the chemical fiber fabric is made of a spinnable polymer; the fabric structure of the chemical fiber fabric is a woven structure, the woven structure consists of warp yarns and weft yarns, and the chemical fiber fabric is divided into three areas of an imitation bone area, an imitation tendon area and an imitation muscle area along the weft yarn direction.
As shown in fig. 1, in the present embodiment, the fiber component of the chemical fiber fabric is a spinnable polymer having good compatibility with human tissue, such as polyethylene terephthalate (PET) and polylactic acid (PLA).
In this embodiment, the woven structure is specifically a plain weave structure.
For the weft yarns, the weft yarns of the simulated bone area and the simulated tendon area macroscopically present a conventional vertical form, and the weft yarns of the simulated muscle area macroscopically present a curled form, wherein the diameter of an outer circle of the weft yarns is 60 mu m, and the twist angle is 0 deg.
In this example, the warp yarn used in the simulated bone region was a HAp/PLA hexalobal fiber structure, the diameter of the warp yarn was 30 μm, and the twist angle was 45 ° of PLA multifilament yarn containing hydroxyapatite (HAp) nanoparticles in the warp yarn used in the simulated bone region.
In this example, the warp yarns used in the tendon-like and muscle-like regions were 30 μm in diameter, and the warp yarns used in the tendon-like and muscle-like regions were round pure-phase PET multifilament yarns with a twist angle of 45 °.
In this embodiment, the weft yarn is embodied as a side-by-side bicomponent multifilament yarn of high viscosity PET and low viscosity PET.
The tensile strength of the chemical fiber monofilament is not lower than 2.5cN/dtex.
The pore size of the collagen porous material is 50-300 μm, and the collagen porous material is I-type collagen derived from biological tissues such as beef tendon, cow hide, etc.
The embodiment is more prone to simulate the high elastic mechanical property of the muscle area, and can quickly reconstruct the functions of the muscle area after surgical implantation aiming at the illness state of large-area defects of the muscle area.
Example two
The present embodiment provides a rotator cuff patch for repairing musculoskeletal tissue, comprising:
a collagen porous material, wherein the collagen porous material is made of I-type collagen;
a chemical fiber fabric, wherein the chemical fiber fabric is coated by a collagen porous material, and the chemical fiber fabric is made of a spinnable polymer; the fabric structure of the chemical fiber fabric is a woven structure, the woven structure consists of warp yarns and weft yarns, and the chemical fiber fabric is divided into three areas of an imitation bone area, an imitation tendon area and an imitation muscle area along the weft yarn direction.
As shown in fig. 2, in the present embodiment, the fiber component of the chemical fiber fabric is a spinnable polymer having good compatibility with human tissue, such as polyethylene terephthalate (PET) and Polyethylene (PE).
In this embodiment, the woven structure is specifically a plain weave structure.
In this example, the warp yarn used in the simulated bone region had a diameter of 10 μm and the PET multifilament yarn containing the lithium alginate soil nanoparticles contained in the warp yarn used in the simulated bone region had a twist angle of 15 °.
In this example, the warp yarns used in the tendon-like and muscle-like regions were 10 μm in diameter, and the warp yarns used in the tendon-like and muscle-like regions were round pure-phase PE multifilament yarns with a twist angle of 15 °.
In this example, the weft yarn was multifilament yarn of a PET fiber of a profiled cross section, the profiled cross section of the fiber was cross-shaped, the diameter of the circumcircle thereof was 10 μm, and the twist angle was 0 °.
The tensile strength of the chemical fiber monofilament is not lower than 2.5cN/dtex.
The pore diameter of the collagen porous material is 20-100 μm, and the collagen porous material is I-type collagen derived from biological tissues such as beef tendon, cow hide, etc.
The embodiment is more prone to bionic the orientation microstructure of tendon tissue and muscle tissue, is beneficial to inducing regenerated tissue to simulate the tendon and muscle structure of a human body to form ordered soft tissues, and improves the biomechanical performance of the rotator cuff tissue after operation.
It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (8)
1. A rotator cuff patch for repairing musculoskeletal tissue, characterized in that: comprising
A collagen porous material, wherein the collagen porous material is made of type I collagen;
a chemical fiber fabric, wherein the chemical fiber fabric is coated by the collagen porous material, and the chemical fiber fabric is made of spinnable polymer; the chemical fiber fabric is characterized in that the fabric structure of the chemical fiber fabric is a woven structure, the woven structure consists of warp yarns and weft yarns, and the chemical fiber fabric is divided into three areas of a bone-imitation area, a tendon-imitation area and a muscle-imitation area along the weft yarn direction.
2. The musculoskeletal tissue repair rotator cuff patch of claim 1, wherein: the fiber component of the spinnable polymer is polyethylene terephthalate or polylactic acid.
3. The musculoskeletal tissue repair rotator cuff patch of claim 1, wherein: the woven structure is specifically a plain, twill or satin structure.
4. The musculoskeletal tissue repair rotator cuff patch of claim 1, wherein: the twist angle of the monofilaments of the warp and weft yarns is 0-45 deg..
5. The musculoskeletal tissue repair rotator cuff patch of claim 1, wherein: the weft yarn is specifically multifilament yarn of side-by-side bicomponent fiber or multifilament yarn of profiled-section fiber.
6. The rotator cuff patch for repair of musculoskeletal tissue of claim 5, wherein: the weft yarns are multifilament yarns of side-by-side bicomponent fibers, the weft yarns of the bone-imitation area and the tendon-imitation area are in a vertical form macroscopically along the weft yarn direction, and the weft yarns of the muscle-imitation area are in a curled form macroscopically; the diameter of the circumcircle of the monofilament of the weft yarn is 10-60 mu m.
7. The rotator cuff patch for repair of musculoskeletal tissue of claim 5, wherein: the weft yarn is multifilament of special-shaped cross-section fiber, and the circumcircle diameter of the monofilament of the weft yarn is 10-30 mu m.
8. The musculoskeletal tissue repair rotator cuff patch of claim 1, wherein: the diameter of the warp yarn used in the tendon-like area and the muscle-like area is 10-30 mu m, and the warp yarn used in the tendon-like area and the muscle-like area is round pure-phase polymer multifilament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150522.2U CN219397748U (en) | 2022-08-16 | 2022-08-16 | Rotator cuff patch for repairing musculoskeletal tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150522.2U CN219397748U (en) | 2022-08-16 | 2022-08-16 | Rotator cuff patch for repairing musculoskeletal tissue |
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| Publication Number | Publication Date |
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| CN219397748U true CN219397748U (en) | 2023-07-25 |
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| CN202222150522.2U Active CN219397748U (en) | 2022-08-16 | 2022-08-16 | Rotator cuff patch for repairing musculoskeletal tissue |
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| CN (1) | CN219397748U (en) |
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- 2022-08-16 CN CN202222150522.2U patent/CN219397748U/en active Active
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