A mesh-like inner plant with multiple suture holes

Abstract

This invention belongs to the field of medical device technology and discloses a mesh-type implant with multiple suture holes, comprising: an implant body, which is a flexible sheet material with opposing first and second surfaces; first holes, a plurality of first holes arranged in an array penetrating the first and second surfaces, adjacent first holes being separated by spacers on the implant body; second holes, a plurality of second holes disposed in the spacer region, the second holes penetrating the first and second surfaces, and not communicating with the first holes; wherein, the second holes are suture thread holes. This invention selects several second holes for suture attachment based on the shape of the tear. Through this operation, the sutures in the second holes can be fixed to the soft tissue to be sutured, thereby ensuring that the entire tear is completely pressure-sealed by the mesh-type implant, solving the technical problem of "cat ear" shaped unevenness in the suture area caused by uneven suture tension in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and more specifically, relates to a mesh-type implant with multiple suture holes. Background Technology

[0002] The rotator cuff, also known as the rotator cuff or musculotendinous cuff, is a structure composed of four muscles and their tendons in the shoulder: the supraspinatus, infraspinatus, teres minor, and subscapularis. Together, they form a sleeve-like structure that covers the space between the humeral head and the scapula. The primary function of the rotator cuff is to stabilize the shoulder joint by compressing the humeral head within the glenoid fossa of the scapula. Additionally, the rotator cuff muscles play a crucial role in various shoulder movements and prevent impingement between the humeral head and the acromion.

[0003] An insertion point refers to the location where a muscle or tendon attaches to a bone. For example, a tendon insertion point is the point where a tendon connects to a bone, a crucial area for transmitting muscle force to the bone. For rotator cuff tendons, their insertion points are mainly at the anatomical neck and greater and lesser tubercles of the proximal humerus. The anterior cruciate ligament (ACL) insertion point is the location where the two ends of the ACL attach to the bone, playing a key role in knee joint stability. Similarly, the posterior cruciate ligament (PCL) insertion point is the location where the two ends of the PCL attach to the bone, also playing a key role in knee joint stability.

[0004] Rotator cuff tears and avulsion fractures can be caused by various factors such as acute trauma and chronic strain. Rotator cuff tear repair and avulsion fracture reduction and internal fixation are common surgical treatments. These procedures involve suturing the edges of the rotator cuff tear and suturing the tendon ends to the insertion area. Currently, during suturing surgery, the focus is usually on prognosis and reducing the rate of rotator cuff re-tears and insertion re-avulsions, with less consideration given to the impact of stitch quality on the patient's later aesthetic appearance. Therefore, uneven tension caused by stitching in the suture area, resulting in a "cat ear" shaped unevenness, is quite common.

[0005] Chinese patent application CN119279855A discloses an artificial rotator cuff patch and its weaving method, which includes an upper weaving structure (1), a middle weaving structure (2) for carrying drugs, and a lower weaving structure (3) stacked from top to bottom. A locking edge fixing structure (4) is formed around the edge of the patch, and multiple locking holes (5) are provided on the inner side of the locking edge fixing structure (4), forming a ring. However, the rotator cuff patch of this patent application relies entirely on the locking edge fixing structure (4) for fixation. When the rotator cuff patch is fixed at the site of rotator cuff tear or avulsion fracture with an irregular three-dimensional structure, wrinkled deformation areas will inevitably be generated. Furthermore, due to the frequent movement of the rotator cuff, it is difficult for the rotator cuff patch, especially the wrinkled areas, to be fully pressed against the tendons of the suture area, thus failing to improve the "cat ear" shaped unevenness in the suture area.

[0006] Therefore, there is an urgent need to provide a mesh-type implant with multiple suture holes to solve the technical problem of "cat ear" shaped unevenness in the suture area caused by uneven suture tension in the suturing of rotator cuff tear edges and tendon rupture ends and insertion areas in existing surgeries. Summary of the Invention

[0007] The main objective of this invention is to propose a mesh-type internal implant with multiple suture holes, which aims to solve the technical problem of "cat ear" shaped unevenness in the suture area caused by uneven suture tension in the suturing of rotator cuff tears and tendon ends and insertion areas in existing surgeries.

[0008] To achieve the above objectives, in a first aspect, the present invention provides a mesh-type inner planter with multiple suture holes, comprising:

[0009] The inner plant body is a flexible sheet material having opposing first and second surfaces;

[0010] The first hole, a plurality of the first holes arranged in an array, penetrates the first surface and the second surface, and adjacent first holes are separated by a spacer wall on the inner plant body;

[0011] A second hole, a plurality of second holes, is disposed in the spacer wall region, the second hole penetrating through the first surface and the second surface, but not communicating with the first hole; wherein...

[0012] The second hole is a suture thread hole.

[0013] Preferably, the netted inner plant is made by a weaving process or a non-woven process.

[0014] Preferably, the first holes are arranged in a uniform array on the inner plant body.

[0015] Preferably, the second hole is located in the partition wall region adjacent to the area with the largest number of first holes.

[0016] Preferably, the material of the inner plant body is selected from one or more combinations of polyethylene terephthalate, polypropylene, polyethylene, polylactic acid, polyglycolic acid, polycaprolactone, chitosan, silk fibroin, polytetrafluoroethylene, polyetheretherketone, natural fibers, high-density polyethylene, and ultra-high molecular weight polyethylene.

[0017] Preferably, the shape of the first hole is selected from any one of a circle, a rectangle, a parallelogram, a trapezoid, or a regular polygon.

[0018] Preferably, the second hole is circular in shape.

[0019] Preferably, the inner diameter of the first hole is in the range of 2.6mm-5mm.

[0020] Preferably, the inner diameter of the second hole is in the range of 1.5mm-2.5mm.

[0021] Preferably, the shape of the first hole is selected from an equilateral triangle, and the outlines of adjacent first holes are combined to form a parallelogram shape.

[0022] Preferably, the inner corner of the first hole is rounded.

[0023] Preferably, the netted inner plant is a flat strip.

[0024] Preferably, the mesh-type inner plant is used to flatten and press the tendon in place.

[0025] Preferably, the flat, strip-shaped net-like inner plant is provided with cutting scale markings.

[0026] Secondly, the present invention proposes a method for implanting a mesh-type inner plant with multiple suture holes, comprising:

[0027] Step 1. Provide several inner row anchors with sutures and several outer row anchors;

[0028] Step 2. Insert an inner row of anchors into the bone, and pass the free end of the inner row of anchors with sutures through the soft tissue to be reduced and the second hole in sequence;

[0029] Step 3. Repeat step 2 for all inner row anchors;

[0030] Step 4. Use the sutures attached to several inner anchors to pull the soft tissue to the position to be repositioned;

[0031] Step 5. Pass the free end of the inner row of anchors with the suture thread through the second hole again;

[0032] Step 6. The free end of the suture passing through the second hole is fixed into the bone using external anchors to flatten and press the soft tissue into the repositioned position, completing the implantation of the mesh-type internal implant; wherein,

[0033] The second hole in step 2 is in a different position than the second hole in step 5.

[0034] Preferably, the second hole in step 2 and the second hole in step 5 are distributed on both sides of the soft tissue repositioning position, and the implantation positions of the inner row of anchors and the outer row of anchors are distributed on both sides of the soft tissue repositioning position.

[0035] Preferably, the soft tissue is a tendon.

[0036] Preferably, the inner plant of the netted structure is provided with cutting scale markings.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The present invention provides a mesh-type implant with multiple suture holes. A plurality of first holes arranged in an array penetrate the first surface and the second surface, and adjacent first holes are separated by a partition wall on the implant body. A plurality of second holes are disposed in the partition wall area, and the second holes penetrate the first surface and the second surface, but are not connected to the first holes. Due to the above-mentioned arrangement of the second holes, the number of parts on the implant body that can be sutured through is increased. The surgeon can select several second holes to attach sutures according to the shape of the tear. Through this operation, the sutures of the second holes can be sutured and fixed with the soft tissue to be repositioned, thereby ensuring that the entire tear is completely pressure-fitted by the mesh-type implant and is not prone to relative displacement.

[0039] Furthermore, by setting a second hole in the partition wall area adjacent to the area with the largest number of first holes, the force of the second hole fixed to the soft tissue via the suture can be evenly distributed to the first hole adjacent to the partition wall area. This helps to keep the inner plant of the mesh sleeve in a relatively stable state and can effectively avoid the "cat ear" shaped unevenness caused by uneven wiring tension in the existing system.

[0040] (2) This invention provides a mesh-type implant with multiple suture holes. By arranging a plurality of first holes in an array and specifying their inner diameter ranges, the mesh-type implant provides relatively uniform compression force and permeability in all directions. This ensures both overall adhesion to soft tissue and allows for material exchange between the internal and external environments of the mesh-type implant, facilitating the flow of tissue fluids, promoting the growth and repair of surrounding tissues, and preventing the accumulation of local metabolic products. Furthermore, the first holes provide the surgeon with a sufficient field of view, facilitating adjustments to the compression state of the mesh-type implant during suturing.

[0041] (3) This invention provides a method for implanting a mesh-like implant with multiple suture holes. This involves using a plurality of inner and outer row anchors with sutures in conjunction with the mesh-like implant with multiple suture holes, and providing cutting markings on the flat, strip-shaped mesh-like implant. The surgeon can cut the mesh-like implant with multiple suture holes to match the shape of the irregular tear, thereby reducing the amount of mesh-like implant used while still achieving complete pressure fitting of the irregular tear in a large rotator cuff tear. Attached Figure Description

[0042] Figure 1 This is a schematic diagram illustrating the alignment of the tear edges in existing rotator cuff tear repair surgery using sutures and anchors.

[0043] Figure 2 This is a schematic diagram illustrating the suturing process for rotator cuff tears in existing techniques, where sutures and anchors are used to complete the suturing.

[0044] Figure 3 This is a plan view of an embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0045] Figure 4 This is a plan view of another embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0046] Figure 5 This is a plan view of another embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0047] Figure 6 This is a plan view of another embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0048] Figure 7 This is a plan view of another embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0049] Figure 8This is a three-dimensional schematic diagram of another embodiment of the mesh-type inner plant with multiple suture holes of the present invention;

[0050] Figure 9 for Figure 8 An enlarged schematic diagram of the Q position in the central region;

[0051] Figure 10 This is a schematic diagram of the implantation method of the mesh-type inner plant with multiple suture holes according to the present invention;

[0052] Figure 11 This is a schematic diagram of the use of the mesh-type inner plant with multiple suture holes according to the present invention. Detailed Implementation

[0053] The various aspects of the present invention will be further described in detail below.

[0054] Unless otherwise defined or stated, all technical and scientific terms used herein have the same meaning as are familiar to a user skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be applied to the methods of this invention.

[0055] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For users skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0056] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this disclosure. The drawings only show components relevant to this application and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. For example, the thickness of the elements in the drawings may be exaggerated for clarity.

[0057] Example 1

[0058] Current surgical procedures for rotator cuff tears or insertion avulsions typically involve aligning the tear margins before suturing, for example, in cases resulting in crescent-shaped, U-shaped, or L-shaped tears (non-massive tears) as defined by Davidson and Burkhart, or in cases of massive tears. However, current suturing techniques rarely consider the impact of stitch quality on the patient's post-operative aesthetics, often leading to uneven stitch tension and resulting in "cat-ear" shaped bumps in tendons and other soft tissues. After recovery, these "cat-ear" bumps contribute to an uneven skin surface.

[0059] like Figure 1-2 As shown, in the crescent-shaped rotator cuff tear repair surgery, the suture 1 of the inner row anchor 2 is fixed to the humeral bone 4 by the outer row anchor 9 after the cross-lined wiring. Under the pulling and pressing action of the cross-lined wiring, the tendon 3 that contacts the suture 1 bears a larger tension, while the tendon 3 that does not contact the suture 1 bears a smaller tension. The tendon 3 that bears a smaller tension forms an upward convexity, which in turn leads to the formation of a "cat ear" shaped concave-convex shape 5.

[0060] To address the technical problems in the prior art, this invention proposes a mesh-type inner planter with multiple suture holes, comprising:

[0061] The inner plant body 6 is a flexible sheet material having a first and a second opposing surface;

[0062] The first hole 7, a plurality of the first holes 7 arranged in an array, penetrate the first surface and the second surface, and adjacent first holes 7 are separated by a partition wall on the inner plant body 6.

[0063] A second hole 8, a plurality of second holes 8, are disposed in the spacer wall region. The second holes 8 penetrate the first surface and the second surface, but are not connected to the first hole 7.

[0064] The second hole 8 is the thread hole for the suture 1, and the second hole 8 is different from the first hole 7.

[0065] It should be noted that the mesh-type inner planter with multiple suture holes of the present invention can be tightly pressed against the tear edge alignment of the aforementioned rotator cuff tear or stop avulsion, so that the soft tissue (e.g., tendon) at the tear edge is completely wrapped around and adhered to one side of the mesh-type inner planter with multiple suture holes at the reset position, thereby effectively avoiding the "cat ear" shaped unevenness caused by uneven wiring tension in the existing method.

[0066] It should be noted that the partition wall region specifically refers to the portion of the inner plant body 6 used to separate the plurality of first holes 7. The partition wall region includes both the portion of the inner plant body 6 between two adjacent first holes 7 and the portion of the inner plant body 6 at the intersection of the plurality of partition walls.

[0067] In some embodiments, the first holes 7 are arranged in a uniform array on the inner plant body 6. The inner diameter of the first holes 7 ranges from 2.6 mm to 5 mm. Preferably, the inner diameter of the first holes 7 ranges from 2.7 mm to 4.9 mm; more preferably, from 2.8 mm to 4.8 mm; even more preferably, from 2.9 mm to 4.7 mm; even more preferably, from 3.0 mm to 4.6 mm; even more preferably, from 3.1 mm to 4.5 mm; even more preferably, from 3.2 mm to 4.4 mm; even more preferably, from 3.3 mm to 4.3 mm; even more preferably, from 3.4 mm to 4.2 mm; even more preferably, from 3.5 mm to 4.1 mm; even more preferably, from 3.6 mm to 4 mm; even more preferably, from 3.7 mm to 3.9 mm; even more preferably, from 3.8 mm.

[0068] It should be noted that the arrangement of the array of multiple first holes 7 and their inner diameter ranges ensures that the mesh-like inner plant provides relatively uniform compression force and permeability in all directions. This guarantees both overall adhesion to the soft tissue and allows for material exchange between the inner plant and the external environment, facilitating the flow of tissue fluid and promoting the growth and repair of surrounding tissues while preventing the accumulation of local metabolic products. Specifically, if the pore size is too small (e.g., less than 2.6 mm), the flow of tissue fluid is restricted, and the discharge of metabolic products is impaired; while if the pore size is too large (e.g., greater than 5 mm), the compression strength of the inner plant will be weakened.

[0069] In addition, the setting of the first hole 7 can provide the surgeon with sufficient field of view, making it convenient for the surgeon to adjust the compression state of the mesh inner plant during the suturing process.

[0070] In some embodiments, the second hole 8 is disposed in the partition wall region adjacent to the largest number of first holes 7.

[0071] It should be noted that when multiple second holes 8 are arranged in an array, since the second holes 8 are distributed in the center and peripheral areas of the mesh-like implant, the surgeon can adaptively select several second holes 8 to attach sutures 1 according to the shape of the tear. Through this operation, the sutures 1 attached to the second holes 8 can be fixed to the soft tissue to be sutured (e.g., tendons), thereby ensuring that the entire tear is completely pressure-sealed by the mesh-like implant. Furthermore, setting the second holes 8 in the partition wall area adjacent to the largest number of first holes 7, compared to setting the second holes 8 only in the partition wall between two adjacent first holes 7, allows the force of the second holes 8 fixed to the soft tissue via sutures to be more evenly distributed to all first holes 7 adjacent to the partition wall area, rather than only pulling on two adjacent first holes 7, which helps to keep the mesh-like implant in a more stable state.

[0072] In a more preferred embodiment, a second hole 8 is provided in each partition wall region adjacent to the largest number of first holes 7, because a high density of second holes 8 is advantageous for this embodiment. Furthermore, the partition wall region adjacent to the largest number of first holes 7 is also the intersection of multiple partition walls.

[0073] In some embodiments, the second hole 8, which serves as the suture thread hole, is circular in shape, and the inner diameter of the second hole 8 ranges from 1.5mm to 2.5mm, so that the suture 1 has sufficient space for threading.

[0074] Preferably, the mesh-like inner planter is made by a weaving or non-woven process. Preferably, the inner diameter of the second hole ranges from 1.6mm to 2.4mm; more preferably, from 1.7mm to 2.3mm; even more preferably, from 1.8mm to 2.2mm; even more preferably, from 1.9mm to 2.1mm; even more preferably, from 2.0mm.

[0075] It should be noted that, regarding the selection of suture type 1, commonly used suture type 1 is suitable for suturing thicker fascia, muscles, and other tissues (such as for fixing the rotator cuff tendon in rotator cuff tear surgery). sutures The diameter and strength of the sutures, etc., are conducive to the formation of the final structure of the mesh-like inner plant of the present invention.

[0076] In some embodiments, the flexible sheet material is selected from one or more combinations of polyethylene terephthalate, polypropylene, polyethylene, polylactic acid, polyglycolic acid, polycaprolactone, chitosan, silk fibroin, polytetrafluoroethylene, polyetheretherketone, natural fibers, high-density polyethylene, and ultra-high molecular weight polyethylene. This not only gives the netted inner planter excellent biocompatibility but also ideal mechanical strength.

[0077] In some embodiments, the mesh implant is a flat strip. This configuration is advantageous for pressure fitting of complex-shaped rotator cuff tears. Preferably, the flat strip mesh implant has graduated markings, which helps the surgeon to cut the mesh implant to the optimal shape.

[0078] In some embodiments, the mesh-like inner plant is produced by a weaving or non-weaving process. In the weaving process, yarns or filaments can be interwoven according to the arrangement of the first hole 7 and the second hole 8 to form a woven mesh-like inner plant, for example, using plain weave or twill weave. This operation can be performed by a weaving machine. In the non-weaving process, the mesh-like inner plant can be formed using laser cutting, thermoforming, molding, 3D printing, etc.

[0079] In some embodiments, as shown in the appendix Figure 3-7 As shown, the shape of the first hole 7 is not particularly limited, and it can be selected from any one of the following: circle, rectangle, parallelogram, trapezoid, and regular polygon.

[0080] In some embodiments, as shown in the appendix Figure 8-9 As shown, the shape of the first hole 7 is selected from an equilateral triangle, and the splicing of adjacent first holes 7 forms a parallelogram shape. Specifically, the stability of the triangle is advantageous for the use of the mesh-type inner plant with multiple suture holes in the present invention; while the splicing of adjacent first holes 7 to form a parallelogram shape further optimizes the arrangement of the array of first holes 7, amplifying the effect of the force of the second hole 8 fixed to the soft tissue by the sutures being evenly distributed to the first hole 7 adjacent to the partition wall area.

[0081] In some embodiments, the interior angles of the first hole 7 of the equilateral triangle are rounded. This arrangement results in the spacer walls at the rounded interior angles of adjacent first holes 7 having better mechanical strength and resistance to deformation than when no rounded interior angles are provided.

[0082] In some embodiments, biomaterials such as blood, blood components, BMA, BMSC, PRP, ACP and / or growth factors can be injected into the endophyte to improve and accelerate wound and tissue healing.

[0083] Example 2

[0084] like Figure 10 As shown, the present invention also proposes a method for implanting a mesh-type inner plant with multiple suture holes, comprising:

[0085] Step 1. Provide several inner row anchors 2 with sutures and several outer row anchors 9;

[0086] Step 2. An inner row of anchors 2 is implanted into the bone, and the free end of the inner row of anchors 2 with sutures passes through the soft tissue to be repositioned and the second hole 8 in sequence;

[0087] Step 3. Repeat step 2 for all inner row anchors 2;

[0088] Step 4. Use the sutures 1 attached to several inner anchors 2 to pull the soft tissue to the position to be repositioned;

[0089] Step 5. Pass the free end of the inner row of anchors 2 with the suture 1 through the second hole 8 again;

[0090] Step 6. The free end of the suture passing through the second hole 8 is fixed into the bone 4 using external anchors 9 to flatten and press the soft tissue into the repositioned position, completing the implantation of the mesh-type internal implant; wherein,

[0091] The second hole 8 in step 2 is in a different position than the second hole 8 in step 5.

[0092] It should be noted that the inner row of anchors with suture 1 can be configured as: fully sutured anchors made of biocompatible materials such as polyester fiber (PET) or polyether ether ketone (PEEK) (e.g., SutureTak anchors), or bioabsorbable anchors made of bioabsorbable materials such as polylactic acid, or composite absorbable anchors made of composite absorbable materials, or Q-Fix anchors made of polyethylene materials, or metal anchors made of stainless steel or titanium alloy, etc.

[0093] In some embodiments, the second hole 8 in step 2 and the second hole 8 in step 5 are distributed on both sides of the soft tissue repositioning position, and the implantation positions of the inner row anchors and the outer row anchors 9 are distributed on both sides of the soft tissue repositioning position.

[0094] In some embodiments, the soft tissue is a tendon 3.

[0095] In some embodiments, the flat, strip-shaped mesh implant is provided with cutting markings. Surgical personnel can cut mesh implants with multiple suture holes to match the shape of irregular tears, thereby reducing the amount of mesh implants with multiple suture holes used while still achieving complete pressure fitting of irregular tears such as large rotator cuff tears. (See attached...) Figure 11 As shown, in cases of irregular, large rotator cuff tears (the tear shown is an inverted "T" shape), the mesh implant can be first cut according to the complex tear shape, and then fixed using the implantation method described in this embodiment. It should be noted that the multiple second holes 8 located in the spacer region provide the surgeon with a variety of selectable fixation points. Figure 11 The second hole 8 of the attached suture 1 shown can fix the soft tissue (e.g., tendon) to be sutured according to the shape of the complex tear. The smoothness of the complex tear can be observed in real time through the first hole 7. The compression effect can be selectively adjusted through the second hole 8 of the newly added attached suture 1 until the soft tissue is flattened and pressed into the repositioned position, thus completing the implantation of the mesh-type internal plant.

[0096] Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Furthermore, this device and / or practice the method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0097] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present invention. It should be pointed out that for users of ordinary skills in this field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

[0098] All documents mentioned in this invention are incorporated herein by reference as if each document were individually incorporated by reference. Furthermore, it should be understood that after reading the foregoing description of this invention, users skilled in the art can make various alterations or modifications to this invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A mesh-type inner planter with multiple suture holes, characterized in that, The application relates to a meshed endoprosthesis, comprising: an endoprosthesis body which is a flexible sheet and has opposite first and second faces; a plurality of first holes arranged in a uniform array through the first and second faces, adjacent first holes being separated by a partition wall on the endoprosthesis body; a plurality of second holes provided in the region of the partition wall, the second holes passing through the first and second faces and not being in communication with the first holes; wherein the second holes are suture threading holes; the second holes are provided in the region of the partition wall adjacent to the first holes having the largest number; the inner diameter of the second holes is smaller than that of the first holes.

2. The netting endoprosthesis having multiple suture apertures of claim 1, wherein, The material of the endoprosthesis body is selected from the group consisting of polyethylene terephthalate, polypropylene, polyethylene, polylactic acid, polyglycolic acid, polycaprolactone, chitosan, silk fibroin, polytetrafluoroethylene, polyether ether ketone, natural fiber, high-density polyethylene and ultra-high molecular weight polyethylene, or a combination of one or more thereof.

3. The netting endoprosthesis having multiple suture apertures of claim 1, wherein, The shape of the first holes is selected from any one of a circle, a rectangle, a parallelogram, a trapezoid and a regular polygon.

4. The netting endoprosthesis having multiple suture apertures of claim 1, wherein, The shape of the second holes is a circle.

5. The netting endoprosthesis having multiple suture apertures of claim 4, wherein, The inner diameter of the first holes is in the range of 2.6mm-5mm.

6. The netting endoprosthesis having multiple suture apertures of claim 5, wherein, The inner diameter of the second holes is in the range of 1.5mm-2.5mm.

7. The netting endoprosthesis having multiple suture apertures of claim 5, wherein, The shape of the first holes is a regular triangle, and adjacent first holes are spliced to form a parallelogram shape.

8. The netting endoprosthesis having multiple suture apertures of claim 7, wherein, The inner angle of the first holes is rounded.

9. The netting endoprosthesis having multiple suture apertures of claim 1, wherein, The meshed endoprosthesis is in a flat strip shape, and a cutting scale mark is arranged on the meshed endoprosthesis.

10. The netting endoprosthesis having multiple suture apertures of claim 1, wherein, The meshed endoprosthesis is used for flat pressing and fixing a tendon.

Images