Fixator and fixing system

Abstract

The utility model provides a fixing device and a fixing system, the fixing device is used for fixing target tissue of a target object, the fixing device comprises a head part, a body part connected with the head part and a first channel penetrating through the head part and the body part, and the first channel is configured to enable the fixing device to reach a preset position of the target object. The head portion is configured to be stressed to implant the body portion into a predetermined position of a target object. According to the fixing device and the fixing system, the fixing device and the fixing system are accurate in positioning.

Description

Technical Field

[0001] The utility model relates to the field of biomedical engineering industry, in particular to a fixator and a fixation system. Background Art

[0002] In daily life, improper movements or excessive exercise may lead to articular cartilage damage (such as cartilage detachment and bone fractures). In clinical orthopedic surgery, bone screws are generally fixed to the damaged cartilage to reposition the detached cartilage fragments or prevent the bone fracture from worsening, thereby achieving the purpose of treating cartilage damage.

[0003] In the prior art, before implanting a bone screw, it is usually necessary to drill bone tunnels in the cartilage and subchondral bone respectively to determine the implantation position and direction of the bone screw; after implanting the bone screw, the bone screw usually relies on the fixing structure on it to prevent failure (such as bone screw breakage and falling off) caused by compression due to expansion of the cartilage volume (such as cartilage hyperplasia and swelling).

[0004] Generally speaking, using an electric drill to drill the bone tunnel can cause significant damage to the bone tissue. Furthermore, during the implantation process, the bone screw may deviate from the tunnel due to unintended force. This can damage the bone tissue and prevent the screw from reaching its intended location. Summary of the Invention

[0005] The present invention is proposed in view of the above-mentioned state of the prior art, and its purpose is to provide a fastener and a fastening system with precise positioning.

[0006] To this end, the first aspect of the present invention provides a fixator for fixing a target tissue of a target object, comprising a head, a body connected to the head, and a first channel running through the head and the body, wherein the first channel is configured to move the fixator to a predetermined position of the target object, and the head is configured to be subjected to force to implant the body into the predetermined position of the target object.

[0007] In the fixator involved in the first aspect of the present invention, by providing a first channel on the fixator and allowing the first channel to pass through the head and body of the fixator, the first channel can cooperate with the guide member to allow the fixator to enter the predetermined position of the target object along the guide direction of the guide member. As a result, the fixator can be accurately positioned on the target object, thereby improving the healing effect with the help of the fixator.

[0008] In addition, in the fixator according to the first aspect of the present invention, the connection between the head and the body can optionally be chamfered. After the fixator is implanted in the target object, the chamfer conforms to the surface of the target tissue. In this case, the chamfer at the connection between the head and the body can increase the strength of the connection. Furthermore, after the fixator is implanted in the target object, the chamfer can disperse the stress at the connection, thereby reducing the possibility of fixator failure due to compression and improving the fixation effect of the fixator.

[0009] In addition, in the fixator involved in the first aspect of the present invention, optionally, the body portion includes an upper body portion and a lower body portion, and the lower body portion is provided with a plurality of fixing members, and the plurality of fixing members are staggeredly distributed on the lower body portion along the axial direction of the body portion. In this case, by staggering the fixing members, it helps to reduce the cross-sectional area of ​​the fixator at the fixing member, thereby reducing the squeezing of the fixing member on the target object, thereby reducing the damage to the target object caused by the fixator. In addition, the lower body portion is provided with a plurality of fixing members, and when at least part of the lower body portion is implanted in a tissue with greater strength, the fixing member is at least partially located on the tissue with greater strength, which enables the fixator to be firmly fixed to the tissue with greater strength, thereby preventing it from falling off.

[0010] In addition, in the fixator according to the first aspect of the present invention, optionally, the target tissue includes a first tissue and a second tissue located below the first tissue, the head portion is configured to receive force to sequentially implant the body portion into the first tissue and the second tissue, and when the body portion is implanted into the second tissue, the fixator is at least partially located in the second tissue. In this case, the fixator can enhance the healing effect of the first tissue and the second tissue.

[0011] In addition, in the fixator according to the first aspect of the present invention, the head portion and the body portion may be integrally formed. In this case, by integrally forming the head portion and the body portion, the strength of the fixator can be increased, thereby improving the fixing effect of the fixator.

[0012] In addition, in the fixator according to the first aspect of the present invention, optionally, the number of the body parts is plural. In this case, by connecting the head part to the plural body parts, the applicable range of the fixator can be expanded.

[0013] In addition, the fixator according to the first aspect of the present invention may optionally further include a connecting portion, the connecting portion being arranged on a side of the head away from the body, thereby facilitating implantation of the fixator into the target object.

[0014] In addition, in the fixator involved in the first aspect of the present invention, optionally, the connection portion has a breaking point near the head. In this case, by reducing the strength of the connection portion near the head, it is possible to facilitate breaking of the connection portion.

[0015] The second aspect of the present invention provides a fixing system, comprising an inserter, a guide, and the fixator involved in the first aspect of the present invention, wherein the inserter comprises a force-applying portion, a fixing portion provided at one end of the force-applying portion and cooperating with the fixator, and a second channel provided in the force-applying portion, wherein the guide is configured to cooperate with the first channel of the fixator sleeved on the guide to guide the fixator to a predetermined position of a target object, and the end extending out of the connecting portion can be at least partially located in the second channel. In this case, by using the inserter in conjunction with the fixator, it is possible to facilitate the implantation of the fixator into the target object. In addition, by having the end of the guide extending out of the connecting portion be located in the second channel, the guide can guide the implantation direction of the inserter, thereby enabling the fixator to be accurately positioned on the target object.

[0016] Furthermore, in the fixation system according to the second aspect of the present invention, the driver can optionally be inserted into the connecting portion via the fixing portion to apply force to the head. In this case, by inserting the fixing portion and the connecting portion into each other, the implantation direction of the driver and the fixator can be aligned, thereby enabling the fixator to be accurately positioned on the target object.

[0017] According to the utility model, a fixer and a fixation system with precise positioning can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will now be explained in further detail, by way of example only, with reference to the accompanying drawings.

[0019] Figure 1 2 is a diagram showing an application scenario of the fastener involved in the example of the present utility model.

[0020] Figure 2 1 is a schematic structural diagram showing a first embodiment of a fastener according to an example of the present invention.

[0021] Figure 3 It is a schematic structural diagram showing a second embodiment of a fastener according to an example of the present invention.

[0022] Figure 4 Schematic diagram showing the fixer involved in the example of the present utility model located on the target object.

[0023] Figure 5A 1 is a schematic structural diagram showing a third embodiment of a fastener according to an example of the present invention.

[0024] Figure 5B 1 is a diagram showing an application scenario of a third embodiment of the fastener according to an example of the present invention.

[0025] Figure 6 Schematic diagram showing the structure of the fixing part involved in the example of the present invention.

[0026] Figure 7 1 is a schematic diagram showing an overall fixing system involved in an example of the present utility model.

[0027] Figure 8 2 is a schematic structural diagram showing a driver according to an example of the present invention.

[0028] Description of reference numerals:

[0029] 1…fixation system, 10…fixator, 11…head, 12…body, 121…upper body, 122…lower body, 13…first channel, 14…chamfer, 15…fixation member, 16…connecting portion, 161…breaking point, 20…injector, 21…force-applying portion, 22…fixation portion, 23…second channel, 30…guide, 40…target tissue, 41…first tissue, 411…first hole, 42…second tissue, 421…second hole. DETAILED DESCRIPTION

[0030] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. In the following description, identical components will be assigned identical reference numerals, and duplicate descriptions will be omitted. In addition, the accompanying drawings are merely schematic, and the proportions of the dimensions of the components or the shapes of the components may differ from the actual ones.

[0031] It should be noted that the terms "include" and "have" and any variations thereof in the present invention, such as a process, method, system, product or device that includes or has a series of steps or units, are not necessarily limited to those steps or units clearly listed, but may include or have other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0032] It should be noted that, in this article, relative position and relative direction terms such as "above", "towards above", "below", "towards downward", "up and down direction", "left side", "towards the left side", "left direction", "towards the left", "right side", "towards the right side", "right side", "towards the right", "left and right direction", "front", "towards the front", "back", "towards the back", "front and back direction" are with reference to the normal operating posture and should not be considered as restrictive.

[0033] The present invention relates to a fixator for fixing a target tissue of a target object. The fixator is provided with a first channel that passes through the head and body of the fixator. The first channel then cooperates with a guide member to guide the fixator to a predetermined position on the target object along the guide member's direction. This allows the fixator to be precisely positioned on the target object, thereby enhancing the healing effect.

[0034] In some examples, the fixator involved in the present invention may also be called a bone nail, a cartilage nail, a barbed nail, or a guide nail, etc. The fixator involved in the present invention is described in detail below with reference to the accompanying drawings.

[0035] Figure 1 1 is a diagram showing an application scenario of the fastener 10 involved in an example of the present utility model.

[0036] In this utility model, see Figure 1 The fixator 10 can be used to enhance the healing effect of a target object. In some examples, the target object can be a living body or any part of a living body, such as a joint or bone.

[0037] In some examples, the target object may include target tissue 40. That is, the target object may be any object that includes target tissue 40. Furthermore, target tissue 40 may be any tissue that requires fixation. In some examples, target tissue 40 may be damaged tissue. For example, target tissue 40 may be tissue that has undergone a bone fracture. In another example, target tissue 40 may be tissue that has detached.

[0038] In some examples, the fixture 10 can be used to fix a target tissue 40 of a target object. In some examples, the target tissue 40 can be fixed by moving the fixture 10 to a predetermined position in the target object. In some examples, the predetermined position can be configured as the position of the fixture 10 in the target object when the fixture 10 causes the target object to have a desired healing effect.

[0039] In some examples, the target tissue 40 may include a first tissue 41 and a second tissue 42. Figure 1 In some examples, the second tissue 42 can be located below the first tissue 41. In some examples, the first tissue 41 can cover the surface of the second tissue 42.

[0040] The following describes the fixator 10 by taking the target tissue 40 including the first tissue 41 and the second tissue 42 as an example. It should be noted that this does not limit the fixator 10 .

[0041] In some examples, the fixture 10 can be guided to a predetermined position of the target object by the guide 30. In some examples, the guide 30 can punch a first hole 411 in the first tissue 41 and a second hole 421 in the second tissue 42. In some examples, the guide 30 can pass through the first tissue 41 and into the second tissue 42 along the implantation direction D1.

[0042] In some examples, the fixator 10 can be used to heal the first tissue 41 and the second tissue 42. In this case, the fixator 10 fixes the first tissue 41 to the second tissue 42, thereby enabling the first tissue 41 and the second tissue 42 to maintain close contact during the healing process.

[0043] For some examples, see Figure 1 The fixator 10 can be sleeved on the guide 30 and implanted into a predetermined position of the target object with the help of the guide 30. Thus, the fixator 10 can be accurately positioned in the target object, thereby improving the healing effect with the help of the fixator 10.

[0044] In some examples, the implantation direction D1 may be a displacement direction of the fixture 10 when the fixture 10 is implanted in a predetermined position of the target object.

[0045] Figure 2 1 is a schematic structural diagram showing a first embodiment of a fastener 10 according to an example of the present invention.

[0046] For some examples, see Figure 2 The holder 10 may include a head 11 and a body 12. In some examples, the head 11 may be connected to the body 12.

[0047] In some examples, the head 11 can be configured to receive force to implant the body 12 into a predetermined position of the target object. In other words, the head 11 can apply force to the body 12 to implant the body 12 into the target object. In some examples, for a target tissue 40 including a first tissue 41 and a second tissue 42, the head 11 can be configured to receive force to implant the body 12 into the first tissue 41 and the second tissue 42 in sequence. In some examples, when the body 12 is implanted into the second tissue 42, the fixing member 15 (described later) can be at least partially located in the second tissue 42. As a result, the fixing device 10 can improve the healing effect of the first tissue 41 and the second tissue 42.

[0048] In some examples, the head 11 and the body 12 may be integrally formed, thereby increasing the strength of the fixator 10 and improving the fixing effect of the fixator 10 .

[0049] For some examples, see Figure 2, a chamfer 14 may be provided at the connection between the head 11 and the body 12. In some examples, after the fixator 10 is implanted into the target object, the chamfer 14 may be fitted to the surface of the target tissue 40. For example, the chamfer 14 may be fitted to the first tissue 41. In this case, by providing the chamfer 14 at the connection between the head 11 and the body 12, the strength of the connection can be increased. In addition, after the fixator 10 is implanted into the target object, the stress at the connection can be dispersed by the chamfer 14, thereby reducing the possibility of failure of the fixator 10 due to extrusion, thereby improving the fixation effect of the fixator 10.

[0050] In other examples, the connection between the head 11 and the body 12 may not be provided with the chamfer 14 , thereby facilitating the processing and manufacturing of the fixator 10 .

[0051] In some examples, the chamfer 14 may completely cover the surface of the head 11 on the side close to the body 12. This can improve the strength of the connection between the head 11 and the body 12, thereby improving the fixing effect of the fixator 10.

[0052] In some examples, the chamfer 14 may not completely cover the surface of the head 11 on the side close to the body 12. In this way, the material used in the fixture 10 can be reduced.

[0053] In some examples, the body 12 can be connected to the center of the head 11. This can facilitate the processing and manufacturing of the fixator 10. In other examples, the body 12 can be connected to other locations on the head 11. This can expand the scope of application of the fixator 10.

[0054] In some examples, the body 12 may be perpendicular to the head 11. This facilitates implantation of the fixture 10 into the target object.

[0055] In other examples, the body 12 may not be perpendicular to the head 11. This can expand the applicable range of the fixator 10.

[0056] For some examples, see Figure 2 The body 12 may be provided with a plurality of fixing members 15. In some examples, the fixing members 15 may be used to fix the fixator 10 to the target tissue 40. In some examples, the fixing members 15 may be protrusions. For example, the fixing members 15 may be barbs.

[0057] In some examples, body portion 12 may include an upper body portion 121 and a lower body portion 122 .

[0058] In some examples, the surface of the upper body portion 121 may be smooth, in other words, the upper body portion 121 may not be provided with the fixing member 15. This can reduce damage to the target object.

[0059] In other examples, the upper body 121 may be provided with a fixing member 15 , thereby improving the fixing effect of the fixing device 10 .

[0060] In some examples, the lower body portion 122 may have a pointed end, thereby facilitating implantation of the fixator 10 .

[0061] For some examples, see Figure 2 The lower body 122 may be provided with a fixing member 15. In this case, when at least a portion of the lower body 122 is implanted in a stronger tissue, the fixing member 15 is at least partially located on the stronger tissue, enabling the fixator 10 to be firmly fixed to the stronger tissue and not easily fall off.

[0062] In some examples, the fixator 10 can be made of an absorbable material. Specifically, the fixing member 15 can be made of an absorbable material. In some examples, the fixing member 15 can be made of an absorbable material. In this case, by increasing the elasticity of the fixing member 15, the fixing member 15 can undergo greater deformation when squeezed by the target object, thereby avoiding the need for a secondary surgery and reducing damage to the target object caused by the fixator 10.

[0063] In some examples, the fixture 10 may be made of a metal material, specifically, the fixing member 15 may be made of a metal material. In this case, by increasing the rigidity of the fixing member 15, the fixing effect of the fixture 10 can be improved.

[0064] In some examples, there may be multiple fixing members 15 , thereby improving the fixing effect of the fixator 10 .

[0065] In other examples, there may be only one fixing member 15 , thereby reducing the material usage of the fixator 10 .

[0066] In some examples, the end surface of the fixing member 15 may be perpendicular to the body 12 , thereby facilitating the processing and manufacturing of the fixator 10 .

[0067] In other examples, the end surface of the fixing member 15 may not be perpendicular to the body 12. In other words, the end surface of the fixing member 15 may be inclined toward the body 12. This can facilitate the implantation of the fixator 10.

[0068] In some examples, the fixing member 15 can be integrally formed with the body 12. In this case, by increasing the strength of the connection between the fixing member 15 and the body 12, the fixing effect of the fixator 10 can be improved.

[0069] In some examples, the end surface of the fixing member 15 may be square, thereby facilitating the processing and manufacturing of the fixing device 10 .

[0070] In some examples, the end surface of the fixing member 15 may be at least one of a circle, a polygon, and an irregular shape, thereby expanding the applicable scope of the fixing device 10 .

[0071] In some examples, a plurality of fixing elements 15 may be distributed along the axial direction of the body 12 .

[0072] In some examples, multiple fixing members 15 may be staggeredly distributed on the body 12 along the axial direction of the body 12. In this case, by staggering the fixing members 15, the cross-sectional area at the fixing members 15 is reduced, which can reduce the compression of the fixing members 15 on the target object, thereby reducing the damage of the fixator 10 to the target object.

[0073] In addition, the staggered distribution can be a distribution mode in which multiple fixing members 15 are arranged at multiple positions of the body 12 in a non-circular manner. Figure 2 In some examples, the plurality of fixing members 15 may be staggered along the axial direction of the body 12 . In other examples, at least some of the plurality of fixing members 15 may also be arranged in a ring around the body 12 .

[0074] In some examples, the fixing members 15 may be spaced apart by the same distance. In other examples, the fixing members 15 may be spaced apart by different distances.

[0075] In some examples, the surface of the body 12 may be uninterrupted, in other words, the surface of the body 12 may not be divided by the fixing member 15. In this case, the fixing member 15 is disposed on the body 12 in a non-circular manner, which can reduce the cross-sectional area of ​​the fixing member 15 and reduce the pressure on the target object, thereby reducing damage to the target object caused by the fixing device 10.

[0076] In some examples, a plurality of fixing members 15 may be spaced apart and distributed on the body 12 .

[0077] For some examples, see Figure 2 The fixator 10 may further include a first channel 13. In some examples, the first channel 13 may be configured to position the fixator 10 at a predetermined location on the target object. This allows the fixator 10 to be precisely positioned on the target object, thereby enhancing healing effects.

[0078] In some examples, the first channel 13 may pass through the head 11 and the body 12. In some examples, the first channel 13 may be a through hole. In some examples, the first channel 13 may be a through slot.

[0079] In some examples, the fixator 10 can be sleeved onto the guide member 30 through the first channel 13. In some examples, the guide member 30 can cooperate with the first channel 13 to guide the fixator 10 to a predetermined position on the target object. This allows the fixator 10 to be precisely positioned on the target object, thereby enhancing the healing effect of the fixator 10.

[0080] In some examples, the axis of the first channel 13 may coincide with the axis of the fixture 10. In other words, the first channel 13 may be located at the exact center of the fixture 10. This facilitates positioning of the fixture 10. In other examples, the axis of the first channel 13 may not coincide with the axis of the fixture 10. This expands the applicability of the fixture 10.

[0081] In some examples, the inner diameter of the first channel 13 is not less than the outer diameter of the guide 30. In this case, by movably sleeved on the guide 30, the implantation of the fixator 10 can be facilitated.

[0082] In some examples, the head 11 may be in a truncated cone shape, thereby facilitating the head 11 to press the first tissue 41 against the second tissue 42 .

[0083] Figure 3 1 is a schematic structural diagram showing a second embodiment of the fastener 10 according to an example of the present invention.

[0084] For some examples, see Figure 3 The head 11 can be in the shape of an elongated strip, thereby expanding the applicable scope of the fixator 10.

[0085] Figure 4 1 is a schematic diagram showing the fixer 10 according to the example of the present invention located on the target object. Figure 4 The fixer 10 is simplified in FIG.

[0086] In some examples, the first tissue 41 and the second tissue 42 may have different tissue compositions. In other examples, the first tissue 41 and the second tissue 42 may have the same tissue composition.

[0087] As described above, in some examples, the target tissue 40 may include a first tissue 41 and a second tissue 42. In some examples, see Figure 1 and Figure 4 , the second tissue 42 may be stronger than the first tissue 41. In this case, when the target tissue 40 is fixed using the fixator 10 having a plurality of fixing elements 15 disposed on the lower body portion 122, the fixing elements 15 are at least partially located on the second tissue 42, enabling the fixator 10 to be firmly fixed to the second tissue 42 and thus not easily falling off.

[0088] In some examples, the target tissue 40 may be bone tissue. In some examples, the first tissue 41 may be cartilage tissue, and the second tissue 42 may be subchondral bone tissue. In this case, when the bone tissue is fixed using a fixator 10 having multiple fixing elements 15 disposed on the lower body portion 122, the fixing elements 15 are at least partially located on the subchondral bone tissue, enabling the fixator 10 to be firmly fixed to the subchondral bone tissue, thereby preventing it from falling off.

[0089] For some examples, see Figure 4 When the fixator 10 is implanted in the second tissue 42 in the body part 12, the fixing member 15 can be at least partially located in the second tissue 42. In this case, when the strength of the second tissue 42 is greater than that of the first tissue 41, by implanting at least part of the fixing member 15 in the second tissue 42, the fixator 10 is less likely to fall off, thereby improving the fixation effect of the fixator 10.

[0090] In other examples, the strength of the second tissue 42 may not be greater than the strength of the first tissue 41. Thus, the applicable range of the fixator 10 can be expanded.

[0091] In some examples, the predetermined position may include a predetermined depth. In some examples, the predetermined depth may be no less than the axial length of the body 12 .

[0092] Figure 5A 1 is a schematic structural diagram showing a third embodiment of the fastener 10 according to an example of the present invention. Figure 5B 1 is a diagram showing an application scenario of a third embodiment of the fastener 10 according to an example of the present invention.

[0093] For some examples, see Figure 5A , the number of the body 12 can be multiple. In other examples, the number of the body 12 can be one. In this case, by connecting the head 11 with different numbers of the body 12, the applicable range of the fixator 10 can be expanded.

[0094] For some examples, see Figure 5B , the fixer 10 can be used to fix cracks in a target object.

[0095] Figure 6 1 is a schematic diagram showing a partial structure of a fastener 10 according to an example of the present invention.

[0096] For some examples, see Figure 6 The fixture 10 further includes a connecting portion 16. The connecting portion 16 can be used to connect to the driver 20. In some examples, the connecting portion 16 can be integrally formed with the head 11. This facilitates the processing and manufacturing of the fixture 10.

[0097] In some examples, the connection portion 16 may be provided on a side of the head 11 away from the body 12. In this case, by providing the connection portion 16 on a side of the head 11 close to an impactor 20 (described later), it is possible to facilitate the impactor 20 in implanting the fixture 10 into the target object.

[0098] In some examples, the connecting portion 16 may have a break-off portion 161. In some examples, the break-off portion 161 may be located close to the head 11.

[0099] In some examples, the cross-sectional area of ​​the breaking portion 161 may be smaller than the cross-sectional area of ​​other locations on the connecting portion 16. In this case, by providing the breaking portion 161, that is, by reducing the cross-sectional area of ​​the connecting portion 16 near the head 11, the strength of the connecting portion 16 near the head 11 can be reduced, thereby facilitating the breaking of the connecting portion 16.

[0100] In some examples, break-off location 161 may be a neck.

[0101] In some examples, the diameter of the connecting portion 16 may be no larger than the diameter of the body 12 , thereby facilitating breaking of the connecting portion 16 .

[0102] In some examples, the first channel 13 may also pass through the connecting portion 16. In this case, the fixator 10 is sleeved on the guide member 30 through the first channel 13, and the fixator 10 is implanted into a predetermined position of the target object under the guidance of the guide member 30, so that the fixator 10 can be accurately positioned in the target object, thereby improving the healing effect with the help of the fixator 10.

[0103] The utility model also relates to a fixing system 1 .

[0104] Figure 7 1 is a schematic diagram showing an overall structure of a fixing system 1 according to an example of the present invention.

[0105] In order to better illustrate the present invention, Figure 7 The fixer 10 is simplified in FIG.

[0106] For some examples, see Figure 7 The fixing system 1 may include a fixer 10 , a driver 20 , and a guide 30 .

[0107] In some examples, the impactor 20 may be configured to implant the fixture 10 into the target object. That is, the impactor 20 may cooperate with the fixture 10 to implant the fixture 10 into the target object.

[0108] In some examples, the fixator 10 and the driver 20 can be sleeved on the guide 30. Thus, the fixator 10 can be accurately positioned on the target object, thereby improving the healing effect with the help of the fixation system 1.

[0109] In some examples, the driver 20 may apply force to the fixture 10 to sequentially implant the fixture 10 into a predetermined position of the target object.

[0110] In some examples, the guide 30 can be configured to guide the fixture 10 to a predetermined position on the target object. In some examples, the length of the guide 30 in the implantation direction D1 can be greater than the length of the fixture 10 in the implantation direction D1. Thus, the guide 30 can extend beyond the fixture 10.

[0111] In some examples, the guide member 30 can be made of stainless steel or titanium alloy. In some examples, the guide member 30 can be needle-shaped. This facilitates the guide member 30 to enter the target object. In some examples, the guide member 30 can be a Kirschner wire.

[0112] Figure 8 1 is a schematic structural diagram showing a driver 20 according to an example of the present invention.

[0113] For some examples, see Figure 8 The driver 20 may include a force-applying portion 21. The force-applying portion 21 may be configured to apply force to a fixing portion 22 (described later). In this case, by applying force to the force-applying portion 21, the driver 20 may apply force to the head 11, thereby implanting the fixture 10 into the target object.

[0114] In some examples, the impactor 20 may include a fixing portion 22. In some examples, the fixing portion 22 may cooperate with the fixator 10. In some examples, the fixing portion 22 may be nested with the fixator 10. In some examples, the fixing portion 22 may be nested with the connecting portion 16. In this case, by nesting the fixing portion 22 and the connecting portion 16, the implantation direction D1 of the impactor 20 and the fixator 10 can be aligned, thereby enabling the fixator 10 to be accurately positioned within the target object, thereby enhancing the healing effect of the fixator 10.

[0115] In some examples, the driver 20 may apply force to the head 11 through the fixing portion 22 .

[0116] In some examples, the fixing portion 22 can match the connecting portion 16. Specifically, the inner contour of the fixing portion 22 can be consistent with the outer contour of the connecting portion 16. Thus, by fitting the fixing portion 22 and the connecting portion 16 together, the fixing portion 22 and the connecting portion 16 can fit more tightly.

[0117] In some examples, the inner diameter of the fixing portion 22 may be no smaller than the outer diameter of the connecting portion 16. Thus, the fixing portion 22 and the connecting portion 16 can be fitted more tightly.

[0118] For some examples, see Figure 8 , the fixing portion 22 can be provided at one end of the force applying portion 21. In other examples, the fixing portion 22 can be provided at both ends of the force applying portion 21. Thus, the applicable range of the driver 20 can be expanded.

[0119] For some examples, see Figure 8 The driver 20 may further include a second channel 23. In some examples, the second channel 23 may be provided in the force applying portion 21.

[0120] In some examples, one end of the guide member 30 extending from the connection portion 16 may be at least partially located in the second channel 23. In this case, the impactor 20 is inserted into the guide member 30 through the second channel 23 and applies force to the fixture 10 along the implantation direction D1. This allows the guide member 30 to guide the implantation direction D1 of the impactor 20, thereby enabling the fixture 10 to be accurately positioned in the target object, thereby enhancing the healing effect with the aid of the fixation system 1.

[0121] In some examples, the inner diameter of the first channel 13 may be the same as the inner diameter of the second channel 23. This facilitates the processing and manufacturing of the fixture 10 and the driver 20.

[0122] In the present invention, in the fixator 10 involved in the first aspect, by providing a first channel 13 in the fixator 10, the fixator 10 is sleeved on the guide 30, and the fixator 10 is implanted into the target object with the assistance of the guide 30. By providing a plurality of staggered fixing members 15 on the body 12 and providing a chamfer 14 at the connection between the head 11 and the body 12, the fixator 10 can be accurately positioned on the target object and damage to the target object can be reduced. At the same time, the fixation effect of the fixator 10 can be improved, thereby enhancing the healing effect with the help of the fixator 10. In the fixation system 1 involved in the second aspect, by providing a second channel 23 in the impactor 20, the impactor 20 is sleeved on the guide 30, and the fixing portion 22 of the impactor 20 and the connecting portion 16 of the fixator 10 are fitted together, thereby facilitating the implantation of the fixator 10 and enabling the fixator 10 to be accurately positioned on the target object, thereby enhancing the healing effect with the help of the fixation system 1.

[0123] According to the present invention, a fixator 10 and a fixation system 1 with precise positioning can be provided.

[0124] Although the present invention has been described in detail above with reference to the accompanying drawings and examples, it should be understood that the above description does not limit the present invention in any form. Those skilled in the art may modify and alter the present invention as needed without departing from the spirit and scope of the present invention, and such modifications and alterations are intended to fall within the scope of the present invention.

Claims

1. A fixator for fixing a target tissue of a target object, characterized in that: The device comprises a head, a body connected to the head, and a first channel passing through the head and the body, wherein the first channel is configured to move the fixator to a predetermined position of a target object, and the head is configured to be subjected to force to implant the body into the predetermined position of the target object.

2. The fastener according to claim 1, wherein: A chamfer is provided at the connection between the head and the body. After the fixator is implanted into the target object, the chamfer fits to the surface of the target tissue.

3. The fastener according to claim 1, wherein: The body part includes an upper body part and a lower body part. The lower body part is provided with a plurality of fixing parts, and the plurality of fixing parts are staggeredly distributed on the lower body part along the axial direction of the body part.

4. The fastener according to claim 3, wherein: The target tissue includes a first tissue and a second tissue located below the first tissue. The head is configured to be subjected to force to implant the body into the first tissue and the second tissue in sequence. When the body is implanted into the second tissue, the fixing member is at least partially located in the second tissue.

5. The fastener according to claim 1, wherein: The head and the body are integrally formed.

6. The fastener according to claim 1, wherein: There are multiple body parts.

7. The fastener according to claim 1, wherein: It also includes a connecting portion, which is arranged on a side of the head away from the body.

8. The fastener according to claim 7, wherein: The connection portion has a breaking point near the head.

9. A fixing system, characterized in that: The invention comprises a driver, a guide, and a fixator according to any one of claims 1 to 8, wherein the driver comprises a force-applying portion, a fixing portion provided at one end of the force-applying portion and cooperating with the fixator, and a second channel provided in the force-applying portion, the guide being configured to cooperate with the first channel of the fixator sleeved on the guide to guide the fixator to a predetermined position of a target object, and an end of a connecting portion extending out of the fixator can be at least partially located in the second channel.

10. The fixing system according to claim 9, characterized in that The driver is sleeved onto the connecting portion through the fixing portion to apply force to the head.

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