An implantable PEEK anchor

Abstract

The utility model discloses an implantation grade PEEK anchor nail, including anchor nail main part, the top of anchor nail main part is equipped with roof, the top of the installation ring is equipped with spiral ring including spiral structure, the outside installation of anchor nail main part is equipped with locating block including spiral structure. The utility model discloses the outside installation of anchor nail main part is equipped with spiral ring, and spiral ring can be wound in the outside of anchor nail main part, and anchor nail main part and spiral ring can be made through PEEK material, and spiral ring and anchor nail main part are convenient for implantation and fixed, and PEEK material has excellent biocompatibility, can be implanted in human body for a long time and does not cause rejection reaction, and the elastic modulus of PEEK material is close to human cortical bone, can effectively reduce stress shielding, promotes the healing of skeleton, and the surface of spiral ring and anchor nail main part is through setting up micropore, increases the adhesion and growth of bone tissue, further improves the stability of anchor nail, and PEEK material ray can be penetrated, and the image is clear when checking after operation, and it is convenient for observing the repair condition.

Description

Technical Field

[0001] This utility model relates to the field of orthopedics and sports medicine, and in particular to an implantable PEEK anchor. Background Technology

[0002] PEEK anchors are implants used in arthroscopic surgery. In orthopedics and sports medicine, the repair of soft tissue-bone connections has always been a clinical challenge. Traditional metal anchors suffer from poor biocompatibility, easy loosening, and potential damage to surrounding tissues, while absorbable anchors have drawbacks such as unstable degradation rates and insufficient mechanical strength. Therefore, developing an implantable anchor with both excellent biocompatibility and good mechanical properties has become an urgent need. Current implantable PEEK anchors can generally meet the needs of users, but some problems still exist, as described below: Traditional metal anchors suffer from poor biocompatibility, easy loosening, and potential damage to surrounding tissues, while absorbable anchors have drawbacks such as unstable degradation rates and insufficient mechanical strength. Utility Model Content

[0003] The purpose of this invention is to provide an implantable PEEK anchor to address the shortcomings of existing implantable PEEK anchors in terms of applicability.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an implantable PEEK anchor, comprising an anchor body;

[0005] A top plate is installed at the top of the anchor body, a groove is provided at the top of the top plate, and a pointed head is installed at the bottom of the anchor body.

[0006] The bottom of the pointed tip is provided with anti-slip texture, and an installation ring is installed on the outer side of the anchor body, with a spiral structure installed on the top of the installation ring.

[0007] The spiral structure includes a spiral ring mounted on the top of the mounting ring, the spiral ring having a cavity inside, and a positioning block mounted on the outer side of the anchor body.

[0008] In use, the spiral ring can first be wrapped around the outside of the anchor body. The spiral ring can be positioned and fixed by the positioning block. Both the anchor body and the spiral ring can be made of PEEK material. The spiral ring and the anchor body are easy to implant and fix. PEEK is a polyether ether ketone material with the advantages of high strength and toughness, bone fusion promotion, postoperative comfort and easy processing and sterilization.

[0009] Furthermore, a groove is provided at the top of the positioning block, and the positioning block and the spiral ring form a sliding structure, allowing the spiral ring to be positioned by the positioning block.

[0010] Furthermore, the inner diameter of the spiral ring is larger than the outer diameter of the anchor body, and the spiral ring is spiral in shape, allowing it to rotate and wrap around the anchor body.

[0011] Furthermore, the anti-slip texture is distributed in a ring shape, and the anti-slip texture is arranged at equal intervals at the bottom of the tip, which can enhance the friction of the tip.

[0012] Furthermore, a positioning structure is installed at the bottom of the mounting ring. The positioning structure includes a positioning groove disposed on the outside of the anchor body. The positioning structure also includes a connecting rod installed at the bottom of the mounting ring, and a buckle installed at the bottom of the connecting rod. The positioning structure can position the mounting ring.

[0013] Furthermore, the buckles are arranged at equal intervals at the bottom of the connecting rod, and the buckles are distributed in a ring, so that the buckles can lock the guide groove.

[0014] Furthermore, a disassembly and assembly structure is installed at the bottom of the top plate. The disassembly and assembly structure includes a threaded groove at the top of the anchor body and a threaded block installed at the bottom of the top plate. The disassembly and assembly structure can disassemble and assemble the top plate.

[0015] Furthermore, the outer sidewall of the threaded block is uniformly provided with external threads, and the inner sidewall of the threaded groove is uniformly provided with internal threads that cooperate with the external threads. The threaded block and the threaded groove are threadedly connected, and the threaded block can be screwed into the threaded groove.

[0016] Furthermore, a rubber ring is provided at the top of the threaded groove. The inner diameter of the rubber ring is larger than the outer diameter of the anchor body. The rubber ring can enhance the sealing between the top plate and the anchor body.

[0017] The implantable PEEK anchor provided by this utility model has the following advantages: the spiral structure can be wound around the anchor body, and both the anchor body and the spiral ring can be made of PEEK material. PEEK is a polyether ether ketone material, which has the advantages of high strength and toughness, bone fusion promotion, postoperative comfort and easy processing and sterilization.

[0018] A spiral ring is installed on the outside of the anchor body. The spiral ring can be wrapped around the outside of the anchor body and can be positioned and fixed by a positioning block. Both the anchor body and the spiral ring are made of PEEK material. The spiral ring and the anchor body are easy to implant and fix. PEEK material has excellent biocompatibility and can be implanted in the human body for a long time without causing rejection. The elastic modulus of PEEK material is close to that of human cortical bone, which can effectively reduce stress shielding and promote bone healing. The surface of the spiral ring and the anchor body is made of micropores to increase the attachment and growth of bone tissue, further improving the stability of the anchor. PEEK material is radiolucent, and the images are clear during postoperative examination, which is convenient for observing the repair. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a three-dimensional exploded structural diagram of the present invention;

[0021] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of a portion of point A in the middle section;

[0022] Figure 4 This is a three-dimensional exploded structural diagram of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the present invention.

[0024] The reference numerals in the diagram are as follows: 1. Anchor nail body; 2. Spiral structure; 201. Spiral ring; 202. Cavity; 203. Positioning block; 3. Pointed end; 4. Anti-slip texture; 5. Positioning structure; 501. Positioning groove; 502. Connecting rod; 503. Buckle; 6. Mounting ring; 7. Top plate; 8. Groove; 9. Disassembly and assembly structure; 901. Threaded block; 902. Threaded groove; 903. Rubber ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 One embodiment of this utility model is an implantable PEEK anchor, comprising an anchor body 1.

[0027] A top plate 7 is installed at the top of the anchor body 1, and a disassembly structure 9 is installed at the bottom of the top plate 7. The disassembly structure 9 includes a threaded groove 902 at the top of the anchor body 1, and a rubber ring 903 at the top of the threaded groove 902. The inner diameter of the rubber ring 903 is larger than the outer diameter of the anchor body 1.

[0028] The disassembly and assembly structure 9 includes a threaded block 901 installed at the bottom of the top plate 7. External threads are evenly arranged on the outer side wall of the threaded block 901, and internal threads that cooperate with the external threads are evenly arranged on the inner side wall of the threaded groove 902. The threaded block 901 and the threaded groove 902 are threadedly connected.

[0029] See attached document Figure 4 As shown, the threaded block 901 at the bottom of the top plate 7 and the two sides of the top of the anchor body 1 form a threaded connection. The threaded block 901 can be screwed into the threaded groove 902 to fix the top plate 7 to the top of the anchor body 1. The groove 8 is cross-shaped, which makes it easy to rotate the top plate 7 with a screwdriver. When it is necessary to disassemble the top plate 7, the top plate 7 can be screwed to unscrew the threaded block 901 out of the threaded groove 902 for disassembly. The rubber ring 903 is made of rubber material and can enhance the sealing between the top plate 7 and the anchor body 1.

[0030] The top of the top plate 7 is provided with a groove 8, and the bottom of the anchor body 1 is provided with a pointed head 3.

[0031] The bottom of the pointed end 3 is provided with anti-slip texture 4, which is distributed in a ring and is arranged at equal intervals at the bottom of the pointed end 3.

[0032] An installation ring 6 is installed on the outside of the anchor body 1. A positioning structure 5 is installed at the bottom of the installation ring 6. The positioning structure 5 includes a positioning groove 501 located on the outside of the anchor body 1. A connecting rod 502 is installed at the bottom of the installation ring 6. A buckle 503 is installed at the bottom of the connecting rod 502. The buckles 503 are arranged at equal intervals at the bottom of the connecting rod 502 and are distributed in a ring.

[0033] See attached document Figure 1-3 As shown, the mounting ring 6 at the bottom of the spiral ring 201 can be wound around the bottom of the anchor body 1. When the spiral ring 201 is rotated and wound around the anchor body 1, after it is completely wound, the connecting rod 502 at the bottom of the mounting ring 6 is made of plastic material. The plastic material has a certain elasticity. The buckle 503 at the bottom of the connecting rod 502 can be inserted into the positioning groove 501 for fixation, making the fixation of the spiral ring 201 more stable.

[0034] The top of the mounting ring 6 is equipped with a spiral structure 2, which includes a spiral ring 201 installed at the top of the mounting ring 6. The inner diameter of the spiral ring 201 is larger than the outer diameter of the anchor body 1, and the spiral ring 201 is spiral in shape.

[0035] The spiral ring 201 has a cavity 202 inside. The spiral structure 2 includes a positioning block 203 installed on the outside of the anchor body 1. The top of the positioning block 203 is provided with a sliding groove. The positioning block 203 and the spiral ring 201 constitute a sliding structure.

[0036] See attached document Figure 1-5As shown, the spiral ring 201 can rotate and wrap around the outside of the anchor body 1 from the bottom end. The spiral ring 201 can be positioned and fixed by the positioning block 203. Both the anchor body 1 and the spiral ring 201 can be made of PEEK material. The spiral ring 201 and the anchor body 1 are easy to implant and fix. PEEK material has excellent biocompatibility and can be implanted in the human body for a long time without causing rejection. The elastic modulus of PEEK material is close to that of human cortical bone, which can effectively reduce stress shielding and promote bone healing. The surface of the spiral ring 201 and the anchor body 1 is... The micropores enhance bone tissue attachment and growth, further improving anchor stability. The porous structure and bioactivity of PEEK material effectively promote bone tissue growth and accelerate healing. PEEK material is radiolucent, providing clear images during postoperative examinations for easy observation of the repair progress. The high strength and good toughness of PEEK material ensure that the anchor can withstand significant external forces after implantation without easily breaking. PEEK material is heat-resistant and has poor thermal conductivity, resulting in greater patient comfort after surgery. PEEK material is easy to injection mold and has excellent sterilization properties, making it suitable for medical-grade applications.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An implantable PEEK anchor, comprising an anchor body (1); Its features are: The top of the anchor body (1) is fitted with a top plate (7), the top of the top plate (7) is provided with a groove (8), and the bottom of the anchor body (1) is fitted with a pointed head (3). The bottom end of the pointed tip (3) is provided with anti-slip texture (4), the outer side of the anchor body (1) is provided with an installation ring (6), and the top end of the installation ring (6) is provided with a spiral structure (2); The spiral structure (2) includes a spiral ring (201) installed at the top of the mounting ring (6), and a cavity (202) is provided inside the spiral ring (201). The spiral structure (2) includes a positioning block (203) installed on the outside of the anchor body (1).

2. The implantable PEEK anchor according to claim 1, characterized in that: The top of the positioning block (203) is provided with a sliding groove, and the positioning block (203) and the spiral ring (201) constitute a sliding structure.

3. The implantable PEEK anchor according to claim 1, characterized in that: The inner diameter of the spiral ring (201) is larger than the outer diameter of the anchor body (1), and the spiral ring (201) is spiral in shape.

4. The implantable PEEK anchor according to claim 1, characterized in that: The anti-slip texture (4) is distributed in a ring, and the anti-slip texture (4) is arranged at equal intervals at the bottom of the tip (3).

5. The implantable PEEK anchor according to claim 1, characterized in that: The bottom end of the mounting ring (6) is equipped with a positioning structure (5). The positioning structure (5) includes a positioning groove (501) located on the outside of the anchor body (1). The positioning structure (5) includes a connecting rod (502) installed at the bottom end of the mounting ring (6). The bottom end of the connecting rod (502) is equipped with a buckle (503).

6. The implantable PEEK anchor according to claim 5, characterized in that: The buckles (503) are arranged at equal intervals at the bottom end of the connecting rod (502), and the buckles (503) are distributed in a ring.

7. The implantable PEEK anchor according to claim 1, characterized in that: The top plate (7) is equipped with a disassembly structure (9) at its bottom end. The disassembly structure (9) includes a threaded groove (902) at the top end of the anchor body (1) and a threaded block (901) at the bottom end of the top plate (7).

8. The implantable PEEK anchor according to claim 7, characterized in that: The outer side wall of the threaded block (901) is uniformly provided with external threads, and the inner side wall of the threaded groove (902) is uniformly provided with internal threads that cooperate with the external threads. The threaded block (901) and the threaded groove (902) are threadedly connected.

9. The implantable PEEK anchor according to claim 7, characterized in that: A rubber ring (903) is provided at the top of the threaded groove (902), and the inner diameter of the rubber ring (903) is larger than the outer diameter of the anchor body (1).

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