Angle-adjustable kirschner wire guide device based on tibia

Abstract

The utility model discloses an angle-adjustable kirschner wire guiding device based on a tibia, and belongs to the technical field of medical instruments. The device comprises a protractor, a guider and a locker, wherein the guider and the locker are used for inserting a needle; scales and an arc-shaped guide part are arranged on the protractor, and the arc-shaped guide part and the scales are coaxially arranged; at the center of the scales, the guider is rotationally connected with the protractor; the guider is in sliding connection with the arc-shaped guide part; and the locker is connected with the guider and is used for fixing the guider on the arc-shaped guide part. One end of the guider can rotate at the center of the scale, and the other end of the guider can continuously slide under the guidance of the arc-shaped guide part and can slide to any scale to be matched with the locking of the upper locker on the guider, so that the needle inserting angle of the guider can be randomly fixed within a certain continuous angle range; the problem that in the prior art, a guider cannot be fixed at will within a certain continuous angle range is practically solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, it relates to a kind of kirschner wire guiding device based on shank of adjustable angle. BACKGROUND

[0002] In orthopedic surgery, in the need of repairing fracture area, fixing fracture site, it is often necessary to hit kirschner wire according to certain angle, in order to avoid the problems such as bleeding, intraoperative trauma, postoperative recovery disorder and postoperative pain caused by kirschner wire penetration into process accumulates blood vessels and nerves of lower limbs, it is often necessary to avoid these key blood vessels and nerves;But the needle insertion angle of kirschner wire in current orthopedic surgery, needle insertion site has no unified standard temporarily, almost all according to the rich surgical experience and hard anatomical knowledge of clinician to ensure the accuracy of needle insertion, so kirschner wire guiding device arises at the historic moment.

[0003] In the existing kirschner wire guiding device, a radius distal fracture percutaneous kirschner wire fixation navigation device (publication number CN213489225U) is disclosed, including scale disc with hooking groove and guider that can rotate around scale disc center, hooking groove is circumferentially arranged on scale disc, the hook of guider is partially inserted into hooking groove, and the other part is hooked behind scale disc, so as to realize the positioning and guiding of the quantitatively adjustable angle of kirschner wire needle insertion, but, since it is realized that guider is fixed by using hooking groove and hook, guider can only be fixed at the position and angle with hooking groove, guider cannot be fixed at the position and angle without hooking groove, so that the needle insertion angle of guider cannot be fixed arbitrarily in a certain continuous angle range, and blood vessel nerve bundle is easily damaged during operation. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of kirschner wire guiding device based on shank of adjustable angle, to solve the problem that the needle insertion angle of guider cannot be fixed arbitrarily in a certain continuous angle range in prior art.

[0005] The utility model provides a kind of kirschner wire guiding device based on shank of adjustable angle in one aspect, comprising:

[0006] protractor, guider for needle insertion and lock;

[0007] Scale and arc-shaped guiding portion are provided on the protractor, and the arc-shaped guiding portion is coaxially arranged with the scale;

[0008] The guider is rotatably connected with the protractor at the center of the scale;The guider is slidably connected with the arc-shaped guiding portion;

[0009] The lock is connected with the guider, and the lock is used to fix the guider on the arc-shaped guiding portion.

[0010] In one of the embodiments, the arc-shaped guide part is an arc-shaped slot or an arc-shaped guide rail.

[0011] In one of the embodiments, the guide is slidingly installed in the arc-shaped slot.

[0012] The lock and the guide are respectively arranged on two surfaces of the protractor, and the lock and the guide are fixedly connected by screwing, so that the lock and the guide are clamped on the protractor.

[0013] In one of the embodiments, the Kirschner wire guide device further comprises a pointer.

[0014] A pointer axis of the pointer and a needle insertion axis of the guide are located in the same plane, and the plane is perpendicular to a surface of the protractor.

[0015] The pointer axis of the pointer and the needle insertion axis of the guide are parallel, and the pointer points to the scale.

[0016] In one of the embodiments, the pointer is inserted into an outer wall of the guide, and the pointer and the guide are respectively arranged on two surfaces of the protractor, and one end of the pointer is located on the surface of the protractor.

[0017] The pointer is provided with an insertion hole for connecting with the lock.

[0018] The lock is fixedly connected with the guide by screwing through the insertion hole, so that the pointer and the guide are clamped on the protractor.

[0019] In one of the embodiments, the length of the pointer is greater than the slot width of the arc-shaped slot, and both ends of the pointer are located on the surface of the protractor.

[0020] In one of the embodiments, the guide is slidingly installed on the arc-shaped guide rail.

[0021] A fixing block with a threaded hole is arranged on a side wall of the guide, the lock is screwed with the fixing block, and one end of the lock can abut against the arc-shaped guide rail, so that the guide is fixed on the arc-shaped guide rail.

[0022] In one of the embodiments, the scale comprises a first scale and a second scale arranged coaxially.

[0023] The first scale and the second scale are respectively arranged on two sides of the arc-shaped slot, the first scale is arranged adjacent to one side of the center of the scale, and the second scale is arranged away from the other side of the center of the scale.

[0024] The interval between adjacent graduations of the first scale is greater than the interval between adjacent graduations of the second scale.

[0025] In one of the embodiments, the Kirschner wire guiding device further comprises a platform; the platform is fixedly connected with the protractor, and the platform and the protractor are arranged perpendicularly to each other.

[0026] In one of the embodiments, the platform is provided with a clamping groove for penetrating a binding belt, and the bottom of the platform is provided with a buffer protection body for protecting skin.

[0027] From the above technical solutions, the Kirschner wire guiding device has the following advantages:

[0028] The embodiment of the utility model provides a kind of adjustable angle's Kirschner wire guiding device based on shin, including protractor, guider and lock, and protractor is equipped with scale and arc guiding portion, and arc guiding portion is coaxially arranged with scale;In the center of scale, guider is rotatably connected with protractor, and guider is slidably connected with arc guiding portion;Lock is connected with guider, and lock is used to fix guider on arc guiding portion, so when being applied, guider one end can rotate around the center of scale, and guider other end can continuously slide under the guidance of arc guiding portion, to slide to any scale in certain continuous angle range, cooperate the locking of guider by lock, so that the needle angle of guider can be fixed in certain continuous angle range, and the problem that guider cannot be fixed in certain continuous angle range in prior art is solved. ACCURATE DESCRIPTION

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0030] Figure 1 The overall structure of the Kirschner wire guiding device based on shin with adjustable angle provided by the embodiment one of the utility model is shown Figure 1 ;

[0031] Figure 2 The overall structure of the Kirschner wire guiding device based on shin with adjustable angle provided by the embodiment one of the utility model is shown Figure 2 ;

[0032] Figure 3 The overall structure of the Kirschner wire guiding device based on shin with adjustable angle provided by the embodiment one of the utility model is shown

[0033] Figure 4 The whole structure section schematic view of the Kirschner wire guiding device with adjustable angle based on tibia provided by the embodiment one of the present application;

[0034] Figure 5 The whole structure front view schematic view of the Kirschner wire guiding device with adjustable angle based on tibia provided by the embodiment two of the present application.

[0035] Reference signs:

[0036] 1, protractor; 10, scale; 10a, first scale; 10b, second scale; 11, arc-shaped guiding part; 11a, arc-shaped through slot; 11b, arc-shaped guide rail; 2, guider; 20, insertion shaft; 3, locker; 4, pointer; 5, platform; 50, clamping groove. DETAILED DESCRIPTION

[0037] The embodiment of the present application provides a Kirschner wire guiding device with adjustable angle based on tibia, which is used for solving the problem that the needle insertion angle of the guider cannot be fixed arbitrarily in a certain continuous angle range in the prior art.

[0038] In order to make the utility model purposes, features, advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0039] Embodiment one

[0040] Please refer to Figures 1 to 4 The present application provides a Kirschner wire guiding device with adjustable angle based on tibia, which comprises:

[0041] Protractor 1, guider 2 for Kirschner needle and locker 3;

[0042] The protractor 1 is provided with scale 10 and arc-shaped guiding part 11, and the arc-shaped guiding part 11 is coaxially arranged with the scale 10;

[0043] The guider 2 is rotationally connected with the protractor 1 at the center of the scale 10; and the guider 2 is slidingly connected with the arc-shaped guiding part 11;

[0044] The locker 3 is connected with the guider 2, and the locker 3 is used for fixing the guider 2 on the arc-shaped guiding part 11.

[0045] The working principle of the embodiment is as follows: when the Kirschner wire needs to be adjusted in the needle entry angle, the guide 2 is rotated at the center of the scale 10 and continuously slides under the guidance of the arc-shaped guide part 11 until it slides to the required angle indicated by the scale 10 of the protractor 1, and then the guide 2 is fixed on the arc-shaped guide part 11 by the locking device 3, so as to realize the accurate fixing of the needle entry angle.

[0046] As can be known from the above principle, the guide 2 changes the angle in the mode of central rotation combined with the sliding of the arc-shaped guide part 11, and the angle of the guide 2 is continuously changed in the sliding process of the guide 2. The guide 2 can be moved from a certain angle to any angle, and the needle entry angle of the Kirschner wire can be fixed at any angle in a certain continuous angle range in cooperation with the locking device 3, so as to realize the fine and display of the needle entry angle, facilitate the operation of the doctor during the operation, save time, and reduce the damage to the blood vessel nerve bundle of the patient.

[0047] In the tibial fracture surgery, the surrounding blood vessels and nerves are deeper, the fixed Kirschner wire is deeper, the needle entry angle that can avoid the damage to the blood vessel nerve bundle is more tricky, and in a continuous angle range, there may be only a few optional needle entry angles. In the tibial surgery, the Kirschner wire guide device 2 of the embodiment is applied, the Kirschner wire guide device 2 is placed on the tibial plane, the needle entry angle of the Kirschner wire is in the direction perpendicular to the long axis of the tibia, so that the Kirschner wire can continuously adjust the needle entry angle on the inner side of the tibia (the bone of the hard part of the medial malleolus), realize the change and fixing of the needle entry angle at any angle in a certain range, accurately enter the needle from a few specific angles, and avoid the problem of damaging the blood vessel nerve bundle when entering the needle.

[0048] As a possible example, in the embodiment, as shown in Figure 4 , a possible structure of the guide 2 is further provided, the guide 2 is provided with a needle entry channel penetrating through both ends of the guide 2, and the needle entry channel is narrowed on the axis of the guide 2; wherein the wide end is the needle entry end and is arranged at the bottom of the protractor 1; and the narrow end is the needle exit end and is arranged at the top of the protractor 1.

[0049] As a possible example, since the guide 2 is wide, the guide 2 cannot be used to read the scale accurately, therefore, in the embodiment, as shown in Figure 1 and Figure 4 , in order to improve the accuracy of the angle quantification of the guide 2, the Kirschner wire guide device 2 further comprises a pointer 4; the pointer axis of the pointer 4 is in the same plane as the needle entry axis of the guide 2, and the plane is perpendicular to the surface of the protractor 1; the pointer axis of the pointer 4 is parallel to the needle entry axis of the guide 2, and the pointer 4 points to the scale; when the guide 2 adjusts the angle, since the pointer 4 is parallel to the needle entry direction of the guide 2, the scale indicated by the pointer 4 is the needle entry scale of the guide 2, the angle quantification of the guide 2 is more accurate, and the accuracy of the needle entry angle is improved.

[0050] As a possible example, in this embodiment, such as Figures 1 to 3 As shown, a feasible structure for the arc-shaped guide 11 is further provided. The arc-shaped guide 11 is an arc-shaped through groove 11a. The guide 2 is slidably installed in the arc-shaped through groove 11a. The locking device 3 and the guide 2 are respectively provided on two surfaces of the protractor 1. The locking device 3 passes through the arc-shaped through groove 11a and is screwed to the guide 2 to fix it so that the locking device 3 and the guide 2 are clamped on the protractor 1. When it is necessary to fix the angle of the guide 2, the locking device 3 on the guide 2 is tightened, and the locking device 3 and the guide 2 are clamped on the protractor 1. When it is necessary to adjust the angle, the locking device 3 on the guide 2 is loosened, and the guide 2 can slide arbitrarily in the arc-shaped through groove 11a to continuously adjust the insertion angle of the Kirschner wire.

[0051] In one specific embodiment, a specific structure of the arc-shaped through groove 11a is further provided. The protractor body and the protractor arc strip are both installed on the platform 5. The protractor body and the protractor arc strip are arranged in the same plane. An arc-shaped through groove 11a is formed between the protractor body and the protractor arc strip. The included angle between the two ends of the arc-shaped through groove 11a is 180° to match the scale of the protractor 1.

[0052] Furthermore, such as Figures 1 to 3 As shown, to facilitate the user's observation of the relative position of pointer 4 and the scale, pointer 4 is inserted into the outer wall of guide 2. Pointer 4 and guide 2 are respectively located on two surfaces of protractor 1, with one end of pointer 4 located on the surface of protractor 1. Pointer 4 has an insertion hole for connecting locking device 3. Locking device 3 passes through the insertion hole and is screwed to guide 2 to fix pointer 4 and guide 2 on the protractor. When locking device 3 is tightened, the longer end of pointer 4 will clamp protractor 1 with guide 2. The user can observe pointer 4 from one side to know the angle of guide 2 on the other side. Compared with the same-side arrangement, this avoids the situation where guide 2 is too long and obstructs the scale, making it convenient for the user's daily use.

[0053] In one specific implementation, such as Figure 4 As shown, a connecting block is fixed to the side wall of the guide 2. The connecting block extends into the arc-shaped through groove 11a. The connecting block has a receiving hole, and a screw hole is provided in the receiving hole. The pointer 4 has an insertion hole, and the pointer 4 is inserted into the receiving hole. The locking device 3 is a screw. The screw passes through the insertion hole and is screwed into the screw hole. When it is necessary to fix the guide 2, tighten the screw to clamp and fix the pointer 4 and the guide 2 on the protractor 1. This can prevent the Kirschner wire from slipping off due to insecure fixing when it is inserted at a large angle.

[0054] The prior art (publication number CN213489225U) has a hooking device that is easily unstable and can slip off. Compared with the prior art, the screw fixing method used in the present application can stably fix the guide device on the protractor, avoiding the problem of slipping.

[0055] Furthermore, as shown in Figure 1 and Figure 4 , in order to improve the support strength of the pointer 4, the length of the pointer 4 is greater than the slot width of the arc-shaped slot 11a, and both ends of the pointer 4 are located on the surface of the protractor 1. When the lock 3 is locked, the force applied by the lock 3 to the pointer 4 will be transmitted to the protractor 1 through both ends of the pointer 4, avoiding damage due to stress concentration.

[0056] As a possible example, in the present embodiment, as shown in Figure 4 , a rotating connection structure of a guide device 2 is provided; another connecting block is fixed on the side wall of the guide device 2, the connecting block is connected with a threaded end plug shaft 20, the center of the scale of the protractor 1 is provided with a shaft through hole, the threaded end of the plug shaft 20 passes through the shaft through hole and is connected and fixed with a nut, and the rotation of the plug shaft 20 in the shaft through hole can realize the rotating connection of the guide device 2 on the protractor 1.

[0057] As a possible example, in the present embodiment, as shown in Figures 1 to 3 , in order to facilitate reading, the scale 10 on the protractor 1 includes coaxially arranged first and second scales 10a and 10b; the first and second scales 10a and 10b are arranged on both sides of the arc-shaped slot 11a, the first scale 10a is arranged adjacent to one side of the center of the scale, and the second scale 10b is arranged away from one side of the center of the scale; the interval between adjacent scales of the first scale 10a is greater than that of the second scale 10b, that is, the scale value of the first scale 10a is greater than that of the second scale 10b. When reading, medical staff first reads the value of the first scale 10a, and then reads the value of the second scale 10b, which can avoid the difficulty of reading due to too many scales, and can also avoid the problem of small characters that are difficult to read due to the small size of the device.

[0058] In a specific embodiment, the first scale 10a is marked from -85° to +85° (0° is perpendicular), that is, every 5 minutes a small box; the second scale 10b is marked from -80° to +80° every 10 minutes, and the adjacent scale lines are colored differently.

[0059] As a possible example, in the present embodiment, as shown in Figures 1 to 4As shown in the drawings, in order to ensure that the direction of the Kirschner wire is perpendicular to the tibial plane, a platform 5 perpendicular to the protractor 1 is provided, the platform 5 is fixedly connected with the protractor 1, the platform 5 and the protractor 1 are arranged perpendicular to each other, when the Kirschner wire is inserted, the platform 5 is placed on the tibial plane, the Kirschner wire insertion plane is perpendicular to the tibial plane, and the medical staff is more convenient to use the device, and all the treatments of each time of Kirschner wire insertion have a "reference plane", which is beneficial to the doctor to insert the Kirschner wire from the reference plane when dealing with some more complex fracture conditions, and the doctor will be more experienced and the risk in the operation is reduced, that is, from the perspective of anatomy, the fat content of the medial surface of the tibia is low, and the standard deviation of the fat content of the medial surface of the tibia in the population is small (explanation: no matter how fat a person is, the medial surface of the lower leg is not fat, so the standard deviation of the fat content is small), so it is the best choice of the "reference plane"; on the other hand, it is helpful for the clinician to summarize experience and help the clinician to summarize experience and treat the patient.

[0060] Further, as shown in the drawings, Figure 1 In order to fix the Kirschner wire guide device 2 on the patient's leg, the platform 5 is provided with a clamping groove 50 for penetrating the bandage, and the clamping groove 50 is arranged on both sides of the platform 5, when the Kirschner wire is inserted, the two clamping grooves 50 penetrate the bandage respectively, then the platform 5 is placed on the tibial plane, and then the two bandages are wound and tied on the lower leg, so as to realize the fixation of the Kirschner wire guide device 2 on the patient's leg, which is convenient for the clinician to operate and can avoid the angle deviation caused by human factors as much as possible.

[0061] Further, in order to protect the skin of the patient, the bottom of the platform 5 is provided with a buffer protection body for protecting the skin, and the buffer protection body is preferably made of EVA back glue (Ethylene Vinyl Acetate, ethylene-vinyl acetate copolymer) and velvet, which can effectively protect the skin of the patient's leg from being scratched.

[0062] Embodiment two

[0063] The second embodiment of the utility model, please refer to Figure 5 , provides a kind of adjustable angle Kirschner wire guide device based on tibia, it is basically identical with the first embodiment, difference lies in, one is not arc-shaped guide portion 11 is arc-shaped slot 11a, but arc-shaped guide rail 11b;Two is not that locker 3 clamps guide 2 and pointer 4 on protractor 1, but locker 3 is fixedly connected with guide 2 on protractor 1.

[0064] As a possible example, in this embodiment, as shown in the drawings, Figure 5As shown, further provided is a structure of the arc-shaped guiding part 11, the arc-shaped guiding part 11 is an arc-shaped rail 11b, and the guider 2 is slidingly installed on the arc-shaped rail 11b; a fixing block with a threaded hole is arranged on the side wall of the guider 2, the fixing block is screwed and locked with the locker 3 through the threaded hole, one end of the locker 3 can abut against the arc-shaped rail 11b, so that the guider 2 is fixed on the arc-shaped rail 11b; when the guider 2 needs to be adjusted in angle, the locker 3 is loosened so that the end of the locker 3 is separated from the arc-shaped rail 11b, and the guider 2 can continuously move in angle on the arc-shaped rail 11b; when the angle needs to be fixed, the locker 3 is tightened so that the end of the locker 3 is tightly abutted against the arc-shaped rail 11b, and the guider 2 cannot continue to move, thereby realizing the fixation of the guider 2 on the arc-shaped rail 11b.

[0065] In one specific embodiment, a sliding groove is formed on the side wall of the guider 2 adjacent to the arc-shaped guiding part 11, the guider 2 is slidingly installed on the arc-shaped rail 11b through the sliding groove, the guider 2 is adjusted in angle by sliding on the arc-shaped guiding part 11, and the guider 2 is fixed on the arc-shaped guiding part 11 by the tightening of the locker 3.

[0066] In summary, the arc-shaped guiding part 11 of the embodiment one is an arc-shaped through slot 11a, the guider 2 is clamped on the protractor 1 by cooperating with the pointer 4; the arc-shaped guiding part 11 of the embodiment two is an arc-shaped rail 11b, and the guider 2 is fixed by the abutment and cooperation of the locker 3 and the arc-shaped rail 11b, it can be seen that the difference between the embodiment one and the embodiment two lies in the different specific structures of the arc-shaped guiding part 11 and the different fixation structures, and the same parts are that the guider 2 in the embodiment one and the embodiment two are all rotatably connected with the protractor 1, the guider 2 is slidingly connected with the arc-shaped guiding part 11, and the locker 3 is used to fix the guider 2 on the arc-shaped guiding part 11, so that the guider 2 can be continuously adjusted in angle or stably fixed on the arc-shaped guiding part 11, and the problem of discontinuous adjustment of the guider 2 in the prior art is solved.

[0067] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

[0068] Finally, it should be noted that, in this text, relational terms such as first and second and the like can merely be used to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions.

Claims

1. A tibia-based angle-adjustable K-wire guide device, characterized in that, The application relates to a Kirschner wire guiding device, which comprises an angle gauge, a guide for a Kirschner wire and a locking device. The angle gauge is provided with a scale and an arc-shaped guide part coaxially arranged with the scale. The guide is rotationally connected with the angle gauge at the center of the scale, and is slidingly connected with the arc-shaped guide part. The locking device is connected with the guide, and is used for fixing the guide on the arc-shaped guide part. The arc-shaped guide part is an arc-shaped through groove or an arc-shaped guide rail.

2. The K-wire guide of claim 1, wherein, The guide is slidingly installed in the arc-shaped through groove.

3. The K-wire guide of claim 2, wherein, The locking device and the guide are respectively arranged on two surfaces of the angle gauge, and are fixed by screwing to clamp the locking device and the guide on the angle gauge. The Kirschner wire guiding device further comprises a pointer.

4. The K-wire guide of any one of claims 2 or 3, wherein, The pointer axis of the pointer and the Kirschner wire axis of the guide are located in the same plane, and the plane is perpendicular to the surface of the angle gauge. The pointer axis of the pointer is parallel to the Kirschner wire axis of the guide, and the pointer points to the scale.

5. The Kirschner wire guiding device according to claim 4, wherein The pointer is inserted into the outer wall of the guide, and one end of the pointer is located on the surface of the angle gauge. The pointer is provided with an insertion hole for being connected with the locking device. The locking device is fixed with the guide by screwing through the insertion hole, so that the pointer and the guide are clamped on the angle gauge. The length of the pointer is greater than the groove width of the arc-shaped through groove, and both ends of the pointer are located on the surface of the angle gauge.

6. The K-wire guide of claim 5, wherein, 7. The Kirschner wire guiding device according to claim 2, wherein The guide is slidingly installed on the arc-shaped guide rail. A fixing block with a screw hole is arranged on the side wall of the guide, the locking device is screwed with the fixing block, and one end of the locking device can abut against the arc-shaped guide rail, so that the guide is fixed on the arc-shaped guide rail. The scale comprises coaxially arranged first and second scales.

8. The K-wire guide of claim 2, wherein, The first and second scales are arranged on the two sides of the arc-shaped through groove, the first scale is arranged adjacent to one side of the center of the scale, and the second scale is arranged away from the other side of the center of the scale. The interval of adjacent scales of the first scale is greater than that of the second scale. The Kirschner wire guiding device further comprises a platform, and the platform is fixedly connected with the angle gauge and arranged perpendicularly to the angle gauge.

9. The K-wire guide of claim 1, wherein, The platform is provided with a clamping groove for a bandage, and the bottom of the platform is provided with a buffer protection body for protecting the skin.

10. The K-wire guide of claim 9, wherein, ​

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