Medical suture anchor

Abstract

The application relates to the field of medical devices, in particular to a medical suture anchor with a wire. The medical suture anchor with a wire comprises a fixing part and a penetrating part; the fixing part is used for connecting a suture; the penetrating part comprises a plurality of penetrating rods, the penetrating rods are connected with the fixing part, and the penetrating rods are distributed in the circumferential direction of the fixing part; one end of the penetrating rod away from the fixing part is provided with a pointed end, the pointed end is used for penetrating into a bone, and a barb assembly is arranged on the penetrating rod to be connected with the bone. The medical suture anchor with a wire can directly implant the penetrating rod into the bone through knocking, and the bone does not need to be pre-drilled, so that bone loss can be reduced, the medical suture anchor with a wire is more suitable for patients with osteoporosis or fragile bones, the barb assembly arranged on the penetrating rod can effectively hold the bone, the pulling resistance of the medical suture anchor with a wire is ensured, and problems such as loosening and falling out after operation are avoided.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly to a medical suture anchor. Background Technology

[0002] In sports medicine surgery, suture anchors are core implantation devices for repairing the connection between soft tissues such as tendons and ligaments and bone. Current methods of suture anchor implantation all require pre-drilling holes in the bone before inserting the anchor. However, for patients with osteoporosis or fragile bones (such as the elderly or those with chronic diseases), due to their poor shear strength, the high rotation speed and torque of the drill bit during drilling can easily cause bone fractures in the already fragile bone, or lead to irreversible bone loss or even intraoperative fractures, resulting in secondary injury to the patient. Furthermore, the decreased mechanical properties of the bone hole wall in osteoporotic patients make it difficult for the threads of traditional anchors to form an effective grip, easily leading to problems such as anchor loosening and dislodgement postoperatively. Utility Model Content

[0003] The purpose of this application is to provide a medical suture anchor for patients with osteoporosis or fragile bones, which solves the problem of secondary bone damage that may occur in the prior art, and effectively holds the bone in place, making it less prone to loosening or dislodgement after surgery.

[0004] This application provides a medical suture anchor, including a fixing part and an insertion part;

[0005] The fixing part is used to connect the suture; the inserting part includes a plurality of inserting rods, all of which are connected to the fixing part and are evenly distributed around the circumference of the fixing part.

[0006] The insertion rod has a pointed end away from the fixing part, which is used to insert into the bone; and the insertion rod is provided with a barb assembly to engage with the bone.

[0007] In the above technical solution, the size of the insertion rod gradually decreases along the insertion direction of the insertion rod.

[0008] In the above technical solution, the inserting rod is further shaped like a sheet; the thickness of the inserting rod gradually decreases along the insertion direction; at least one side of the inserting rod in the thickness direction is provided with the barb assembly;

[0009] Alternatively, the insertion rod may be conical, with the barb assembly provided on the conical surface of the insertion rod.

[0010] In the above technical solution, the end of the insertion rod near the fixing part is flush with the side of the fixing part away from the tip.

[0011] In the above technical solution, the end of the insertion rod away from the tip is a connecting end, and the connecting end is adapted to be connected to the circumferential sidewall of the fixing part.

[0012] In the above technical solution, the barb assembly further includes a plurality of snap-fit ​​barbs, which are spaced apart along the length direction of the insertion rod;

[0013] The locking dart is provided with a guide surface in the direction of insertion of the piercing rod; and with a locking surface away from the direction of insertion of the piercing rod.

[0014] In the above technical solution, the fixing part is further provided with a through hole, and the sewing thread passes through the through hole to connect with the fixing part.

[0015] In the above technical solution, at least the side of the fixation part facing the bone is provided with a receiving groove, which is used to receive the suture.

[0016] In the above technical solution, the edge of the fixing part facing the bone is further provided with a chamfer.

[0017] Compared with the prior art, the beneficial effects of this application are as follows:

[0018] The medical suture anchor provided in this application can be directly implanted into the bone by tapping, without the need for pre-drilling holes in the bone. This can reduce bone loss and is more suitable for patients with fragile bones. In addition, the barb component on the insertion rod can form an effective grip with the bone to ensure a reliable connection between the medical anchor and the bone, avoiding problems such as loosening or dislodgement after surgery. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A first structural schematic diagram of the medical suture anchor provided in this application;

[0021] Figure 2 A schematic diagram of the second structure of the medical suture anchor provided in this application;

[0022] Figure 3 A schematic diagram of the third structure of the medical suture anchor provided in this application;

[0023] Figure 4This is a schematic diagram of the structure of the medical suture anchor implanted into the bone, as provided in this application.

[0024] In the figure: 101-fixing part; 102-insertion part; 103-insertion rod; 104-tip; 105-bone; 106-barb assembly; 107-clamping barb; 108-through hole; 109-receiving groove; 110-guide surface; 111-clamping surface. Detailed Implementation

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

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] Example 1

[0029] See Figures 1 to 4 As shown, the medical suture anchor provided in this application is made of carbon fiber and includes a fixing part 101 and an insertion part 102. The fixing part 101 is used to connect sutures, which connect soft tissue to the fixing part 101; the insertion part 102 can connect to bone 105; thus, based on the overall medical suture anchor structure that connects soft tissue with the fixing part 101 and bone 105 with the insertion part 102, the fixation of soft tissue to bone 105 is achieved.

[0030] Specifically, the insertion part 102 includes multiple insertion rods 103, each connected to the fixing part 101, and the multiple insertion rods 103 are evenly distributed around the fixing part 101. A tip 104 is provided at the end of each insertion rod 103 away from the fixing part 101, and the tip 104 is used to insert into the bone 105. When implanting the medical suture anchor into the patient's bone 105, there is no need to drill a hole in the bone 105; simply tapping the fixing part 101 of the medical suture anchor causes the tip 104 to penetrate the bone 105. This avoids secondary bone damage caused by drilling into the osteoporotic or fragile bone 105.

[0031] Furthermore, the insertion rod 103 is provided with a barb assembly 106. During the process of hammering the insertion rod 103 into the bone 105, the barb assembly 106 can be hammered into the bone 105 along with the insertion rod 103. After implantation, the barb assembly 106 can fit tightly with the bone 105 and form a large reverse resistance. The gripping force generated by the barb assembly 106 is better than that of traditional threaded anchors, thereby ensuring that the medical suture anchor of this application is more stably fixed to the bone 105.

[0032] The medical suture anchor provided in this application can be directly implanted into the bone 105 by tapping the insertion rod 103, without the need for pre-drilling holes in the bone 105, thus reducing bone loss and damage. The barb assembly 106 on the insertion rod 103 can form pull-out resistance from all directions and at multiple points. At the same time, the non-closed structure can ensure the patient's bone growth. All these structures can ensure a reliable connection between the medical suture anchor and the bone 105, making it suitable for patients with osteoporosis or fragile bones.

[0033] In an optional embodiment, the size of the insertion rod 103 gradually decreases along the insertion direction, which helps to reduce damage to the bone 105 and can significantly reduce the resistance when inserting into the bone 105, making the insertion process smoother and more efficient.

[0034] In an optional embodiment, the end of the insertion rod 103 away from the tip 104 is the connecting end, which is adapted to the circumferential sidewall of the fixing part 101 so that the insertion rod 103 is reliably connected to the fixing part 101.

[0035] Optionally, the insertion rod 103 is plate-shaped; the thickness of the insertion rod 103 gradually decreases along the insertion direction; at least one side of the insertion rod 103 is provided with a barb assembly 106 in the thickness direction. Figure 1 and Figure 2As shown, in this embodiment, the outline of the fixing part 101 is circular, and the insertion rod 103 is also correspondingly set as an arc-shaped piece so that the inner side of the connecting end of the insertion rod 103 is adapted to connect with the circumferential sidewall of the fixing part 101. Furthermore, barb components 106 are provided on both sides of the arc-shaped piece in the thickness direction so that the barb components 106 and the bone 105 form a greater gripping force, ensuring that the connection between the medical suture anchor and the bone 105 is more reliable.

[0036] It should be noted that for other shapes and structures of the fixing part 101, the shape of the insert rod 103 can be correspondingly set to adapt and connect with the fixing part 101. For example, for a rectangular fixing part 101, the insert rod 103 is correspondingly set to a straight plate shape.

[0037] Optionally, the insertion rod 103 is tapered, and a barb assembly 106 is provided on the tapered surface of the insertion rod 103. The tapered surface of the insertion rod 103 is curved. In order to ensure a reliable connection between the tapered insertion rod 103 and the fixing part 101, a connecting part adapted to the fixing part 101 can be provided at the large-diameter end of the insertion rod 103, or an embedding structure can be provided in the circumference of the fixing part 101 to embed and install the insertion rod 103. Both methods can increase the connection area, thereby ensuring a reliable connection between the insertion rod 103 and the fixing part 101.

[0038] In the optional solutions of this embodiment, such as Figure 1 and Figure 4 As shown, one end of the insertion rod 103 near the fixing part 101 is flush with the side of the fixing part 101 away from the tip 104.

[0039] In this embodiment, when the medical suture anchor is implanted into the bone 105 by tapping, the insertion rod 103 first penetrates the bone 105, and then the fixation part 101 is also tapped into the bone 105. The end of the insertion rod 103 near the fixation part 101 is flush with the side of the fixation part 101 opposite to the tip 104, ensuring that the surface of the medical suture anchor after insertion into the bone 105 is flush with the surface of the bone 105. This reduces irritation to soft tissues, lowers the incidence of inflammation, and provides a better treatment experience for the patient.

[0040] In an optional embodiment, the edge of the fixing part 101 facing the bone 105 is chamfered. The chamfer is an oblique angle or a rounded angle, which can reduce the resistance of the fixing part 101 when it is driven into the bone 105 and reduce the damage to the bone 105.

[0041] In an optional embodiment, the barb assembly 106 includes a plurality of snap-fit ​​barbs 107, which are spaced apart along the length of the insertion rod 103; the snap-fit ​​barbs 107 are provided with a guide surface 110 facing the insertion direction of the insertion rod 103; and the snap-fit ​​barbs 107 are provided with a snap-fit ​​surface 111 facing away from the insertion direction of the insertion rod 103.

[0042] In this embodiment, the locking puncture 107 is specifically a wedge-shaped positioning block. The guide surface 110 of the locking puncture 107 can reduce resistance during insertion, making the surgical operation smoother and reducing damage to the bone 105 and surrounding tissues. The locking surface 111 of the locking puncture 107 can effectively prevent the medical suture anchor from loosening or shifting under external force, ensuring long-term stability. The multiple locking punctures 107 on the insertion rod 103 can be driven into the bone 105 together with the insertion rod 103, forming a multi-level anti-pull-out structure within the bone, thereby tightly binding with the bone 105 and effectively preventing it from loosening or shifting under external force.

[0043] Example 2

[0044] The medical suture anchor in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0045] See Figure 2 and Figure 3 As shown, in an optional embodiment, the fixing part 101 has a through hole 108, and the sewing thread passes through the through hole 108 to connect with the fixing part 101.

[0046] In this embodiment, sutures connecting soft tissues such as tendons and ligaments can pass through the through-hole 108 to connect with the fixation part 101. The design of the through-hole 108 simplifies the suture fixation process, reduces surgical time, and improves surgical efficiency. Figure 2 As shown, two through holes 108 are provided in the diameter direction of the fixing part 101 and are symmetrically arranged with respect to the center. The sewing thread can pass through the two through holes 108 respectively, and the two free ends of the sewing thread are located on the side of the fixing part 101 where the insertion rod 103 is not provided.

[0047] In an optional embodiment, at least the side of the fixation part 101 facing the bone 105 has a receiving groove 109. The receiving groove 109 is used to receive sutures, preventing suture protrusions from causing gaps between the fixation part 101 and the bone 105, thereby ensuring the stability of the medical suture anchor's fit with the bone 105 and reducing the risk of postoperative loosening. The receiving groove 109 on the side of the fixation part 101 away from the bone 105 can also receive sutures, so that the surface of the medical suture anchor is flush with the surface of the bone 105, while the suture connection with the soft tissue is smoother.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A medical anchor with suture, characterized in that, Includes a fixing part and a insertion part; The fixing part is used to connect the suture; the inserting part includes a plurality of inserting rods, all of which are connected to the fixing part and are evenly distributed around the circumference of the fixing part. The insertion rod has a pointed end away from the fixing part, which is used to insert into the bone; and the insertion rod is provided with a barb assembly to engage with the bone.

2. The medical suture anchor according to claim 1, characterized in that, Along the insertion direction of the insertion rod, the size of the insertion rod gradually decreases.

3. The medical suture anchor according to claim 2, characterized in that, The insertion rod is plate-shaped; the thickness of the insertion rod gradually decreases along the insertion direction; at least one side of the insertion rod in the thickness direction is provided with the barb assembly; Alternatively, the insertion rod may be conical, with the barb assembly provided on the conical surface of the insertion rod.

4. The medical suture anchor according to claim 3, characterized in that, The end of the insertion rod near the fixing part is flush with the side of the fixing part away from the tip.

5. The medical suture anchor according to claim 1, characterized in that, The end of the insertion rod away from the tip is the connecting end, which is adapted to be connected to the circumferential sidewall of the fixing part.

6. The medical suture anchor according to claim 1, characterized in that, The barb assembly includes a plurality of snap-fit ​​barbs, which are spaced apart along the length of the insertion rod. The locking dart is provided with a guide surface in the direction of insertion of the piercing rod; and with a locking surface away from the direction of insertion of the piercing rod.

7. The medical suture anchor according to claim 1, characterized in that, The fixing part has a through hole, and the sewing thread passes through the through hole to connect with the fixing part.

8. The medical suture anchor according to claim 7, characterized in that, At least one of the fixation parts is provided with a receiving groove on the side facing the bone, the receiving groove being used to receive the suture.

9. The medical suture anchor according to claim 1, characterized in that, The edge of the fixing part facing the bone is chamfered.

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