Bone needle fixing type tracer

Abstract

The invention discloses a spicule fixing type tracer. The spicule fixing type tracer comprises a clamping mechanism and a tracing mechanism. The clamping mechanism comprises a clamping piece, a clamping structure and a clamping plate, the clamping piece comprises a main body part, a first clamping arm and a second clamping arm, the first clamping arm and the clamping plate are both used for abutting against the first bone needle, the clamping plate and the first clamping arm are arranged correspondingly, the clamping plate is rotatably arranged on the main body part so as to generate an inclination angle relative to the first clamping arm, and the first clamping arm is elastically connected with the main body part; the clamping structure and the second clamping arm are both used for abutting against a second bone needle, the clamping structure is arranged on the main body part and corresponds to the second clamping arm, and the second clamping arm is elastically connected with the main body part so as to be capable of being close to or away from the clamping plate. And the tracing mechanism is arranged on the main body part and is used for feeding back the position information. The spicule fixing type tracer can adapt to the positional deviation of the spicule, so that the installation difficulty of the spicule fixing type tracer is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a bone needle fixed tracer. Background Art

[0002] As an important part of the navigation and positioning system for orthopedic surgery, the tracer is used to indicate the spatial position of the patient during orthopedic surgery. The firm connection between the tracer and the patient and the stable relative position are important foundations for ensuring surgical accuracy. The current bone needle fixed tracer requires at least two bone needles to be inserted into the bone tissue through soft tissues such as skin and muscle, and the tracer is installed on the bone needles to achieve fixation.

[0003] However, the bone needle is prone to deviation after being inserted, making it difficult to install the tracer. When the bone needle has a large deviation, the bone needle needs to be removed and inserted repeatedly, which prolongs the operation time and aggravates the patient's trauma. Summary of the invention

[0004] The purpose of the present application is to at least solve the problem that the tracer is difficult to install when the bone needle is deviated. This purpose is achieved by: The present application proposes a bone needle fixed tracer, including: a clamping mechanism and a tracer mechanism. The clamping mechanism includes a clamping member, a clamping structure and a splint, the clamping member includes a main body, a first clamp arm and a second clamp arm, the first clamp arm and the splint are both used to abut against the first bone needle, the splint is arranged corresponding to the first clamp arm, the splint is rotatably arranged on the main body to be able to generate an inclination angle relative to the first clamp arm, the first clamp arm is elastically connected to the main body to be able to approach or move away from the splint, the clamping structure and the second clamp arm are both used to abut against the second bone needle, the clamping structure is arranged on the main body and arranged corresponding to the second clamp arm, the second clamp arm is elastically connected to the main body to be able to approach or move away from the splint. The tracer mechanism is arranged on the main body, and the tracer mechanism is used to feedback position information.

[0005] In the bone needle fixed tracer of the embodiment of the present application, since the splint is rotatable, the splint can flexibly adjust the angle formed by itself and the first clamp arm, so as to accurately fit the first bone needle, so that the first clamp arm and the splint can stably clamp the bone needle, avoiding unstable clamping caused by angle mismatch. In this way, the position deviation of the first bone needle can be adapted, thereby reducing the difficulty of installing the bone needle fixed tracer. Since the splint is rotatable, the splint can contact the first bone needle at a suitable angle, and the contact area between the splint and the first bone needle can be optimized, so that the clamping force generated between the splint and the first clamp arm can be evenly distributed on the surface of the first bone needle, thereby reducing the dispersion of the clamping force, and then improving the stability of the fixation of the first bone needle. In addition, by rotatably setting the splint, the clamping mechanism can adapt to various types of bone needles, thereby increasing the versatility of the bone needle fixed tracer of this embodiment.

[0006] In some embodiments, the first clamp arm includes a clamp arm body elastically connected to the main body and an abutment portion provided on the clamp arm body, the abutment portion having a first end face and a second end face, the first end face and the second end face intersect and form an abutment edge, the abutment edge is used to abut with the first bone needle and is arranged opposite to the splint.

[0007] In some embodiments, the clamping structure is a clamping groove for clamping the second bone needle, and the clamping groove is arranged opposite to the second clamping arm.

[0008] In some embodiments, in the width direction of the main body, the first clamp arm and the second clamp arm are located on both sides of the main body, one end of the main body in the length direction of the main body is elastically connected to the first clamp arm and defines a first groove, and the other end of the main body in the length direction of the main body is elastically connected to the second clamp arm and defines a second groove.

[0009] In some embodiments, the clamping mechanism also includes a locking stud and a first locking knob, the locking stud includes a stud head and a stud rod connected to each other, the stud rod extends along the width direction of the main body, the stud rod is passed through the main body, the first clamp arm and the second clamp arm, the first locking knob is movably provided on the stud rod in the extension direction of the stud rod, one of the first clamp arm and the second clamp arm abuts against the first locking knob, and the other of the first clamp arm and the second clamp arm abuts against the stud head.

[0010] In some embodiments, the tracing mechanism includes an adjustment component and a tracing component, and the adjustment component includes: a vertical pole, a mounting member, and a locking member. The vertical rod comprises a rod body and a mounting portion, one end of the rod body is connected to the main body, the other end of the rod body is connected to the mounting portion, the mounting portion defines a rotation groove extending along the circumferential direction of the mounting portion, a rotation cavity connected to the rotation groove is defined in the mounting portion, and a first tooth portion is provided on the outer circumferential surface of the mounting portion; the mounting member is connected to the mounting portion in a manner that it can rotate along the circumferential direction of the mounting portion, the mounting member is provided with a second tooth portion engaged with the first tooth portion, the tracing assembly is connected to the mounting member, and the tracing assembly is used to feedback position information; a locking member is passed through the rotation groove and installed in the rotation cavity, the locking member is passed through the mounting member and abuts against the mounting member, the locking member has a locking state and an unlocking state relative to the mounting member, when the locking member is in the locking state, the first tooth portion and the second tooth portion are used to limit the rotation of the mounting member, and when the locking member is in the unlocking state, the first tooth portion and the second tooth portion are configured to be able to jump teeth when subjected to force, so that the mounting member rotates relative to the mounting portion.

[0011] In some embodiments, the mounting member includes a rotating mounting member and a mounting rod, the second tooth portion is provided on one side of the rotating mounting member, and the third tooth portion is provided on the other side of the rotating mounting member, the mounting rod includes a connecting rod connected to the tracer assembly and a connecting portion connected to the connecting rod, the connecting portion is provided with a fourth tooth portion engaged with the third tooth portion, when the locking member is in the locking state, the third tooth portion and the fourth tooth portion are used to limit the rotation of the connecting portion, and when the locking member is in the unlocking state, the third tooth portion and the fourth tooth portion are configured to be able to jump teeth when subjected to force, so that the connecting portion rotates relative to the rotating mounting member along the circumferential direction of the connecting portion.

[0012] In some embodiments, the locking member includes: a locking rod and a second locking knob. A portion of the locking rod is inserted through the rotating mounting member and the connecting portion, and another portion of the locking rod is inserted through the rotating groove and installed in the rotating cavity in a manner that allows rotation along the circumferential direction of the mounting portion, the second locking knob is located on a side of the connecting portion away from the rotating mounting member and abuts against the connecting portion, the second locking knob is connected to the locking rod in a manner that allows movement along the length direction of the locking rod, and the second locking knob has the locking state and the unlocking state.

[0013] In some embodiments, the tracer assembly includes a tracer ball, a tracer plate, a buckle and a knob. The tracer ball is mounted on the tracer plate, the tracer ball is used to feedback position information, the tracer plate is provided with a mounting hole, the mounting rod also includes a clamping portion connected to the connecting rod, the clamping portion is located on the side of the connecting rod away from the connecting portion, the clamping portion defines a slot, the buckle includes a buckle body and a claw connected to each other, the buckle body is provided in the mounting hole, the claw is provided in the slot, the knob is rotatably provided in the mounting hole, the knob has a clamping position and a separation position relative to the buckle, the knob located at the clamping position is connected to the claw and causes the claw to elastically deform so that the claw is clamped in the slot, and the knob located at the separation position is separated from the claw so that the claw is released from the clamping.

[0014] In some embodiments, the knob includes a button body, a positioning boss and a driving portion, the button body is connected to the positioning boss, a first positioning boss and a second positioning boss are provided in the mounting hole, the positioning boss is located between the first positioning boss and the second positioning boss, when the knob is in the clamping position, the positioning boss abuts against the first positioning boss, when the knob is in the separation position, the positioning boss abuts against the second positioning boss; the driving portion is connected to the button body, the button body is provided with a through hole, the driving portion is penetrated through the through hole, and is located on the inner side of the claw in the inner and outer directions of the button body, when the knob is in the clamping position, the driving portion is connected to the claw, and presses the claw outward in the inner and outer directions of the button body, when the knob is in the separation position, the driving portion is separated from the claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them: Figure 1 A schematic diagram of a bone needle fixed tracer according to an embodiment of the present application; Figure 2 It is a partial structural schematic diagram of a bone needle fixed tracer according to an embodiment of the present application; Figure 3 A schematic diagram of a clamping member according to an embodiment of the present application; Figure 4 A schematic diagram of a clamping member from another perspective of an embodiment of the present application; Figure 5 A schematic diagram of a locking stud according to an embodiment of the present application; Figure 6A schematic diagram of a splint according to an embodiment of the present application; Figure 7 A schematic diagram of an adjustment component according to an embodiment of the present application; Figure 8 A schematic diagram of a pole according to an embodiment of the present application; Fig. 9 A schematic diagram of a rotating body according to an embodiment of the present application; Fig.10 A schematic diagram of a locking rod according to an embodiment of the present application; Fig.11 A schematic diagram of a rotating mounting member according to an embodiment of the present application; Fig.12 A schematic diagram of a mounting rod according to an embodiment of the present application; Fig.13 A schematic diagram of a tracer assembly according to an embodiment of the present application; Fig.14 A schematic diagram of a tracer plate according to an embodiment of the present application; Fig.15 A schematic diagram of a buckle according to an embodiment of the present application; Fig.16 Schematic diagram of a knob according to an embodiment of the present application.

[0016] The reference numerals in the accompanying drawings represent the following: 100. Bone needle fixed tracer; 1. Clamping mechanism; 11. Clamping member; 111. Main body; 112. First clamping arm; 1121. Clamping arm body; 1122. Abutting portion; 1124. First end surface; 1125. Second end surface; 1126. Abutting edge; 1123. First groove; 113. Second clamping arm; 1131. Second groove; 12. Clamping structure; 121. Clamping groove; 13. Clamping plate; 14. Locking stud; 141. Stud head; 142. Stud rod; 15. First locking knob; 2. Tracer mechanism; 21. Adjustment assembly; 211. Vertical pole; 212. Rod body; 213. Mounting part; 2131. Rotation slot; 2132. Rotation chamber; 2133. First tooth portion; 214. Mounting member; 2141. Rotation mounting member; 2142. Second tooth portion; 2143. Third tooth portion; 2144. Mounting rod; 2145. Clamping part; 2146. Clamping slot; 2147. Connecting rod; 2148. Connecting part; 2149. Fourth tooth portion; 215. Locking member; 2151. Locking rod; 2152. Second locking knob; 216. Spring; 217. Rotating body; 2171. Mounting slot; 22, tracer assembly; 221, tracer ball; 222, tracer plate; 2221, mounting hole; 2222, first positioning platform; 2223, second positioning platform; 2224, positioning groove; 223, buckle; 2231, buckle body; 2233, through hole; 2232, claw; 224, knob; 2241, knob body; 2242, positioning boss; 2243, driving part; 225, snap ring; a, length direction of the main body; b, height direction of the main body; c, width direction of the main body. DETAILED DESCRIPTION

[0017] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0018] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0019] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0020] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure rotates, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0021] In the description of the application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential", "height direction", "first direction", "second direction", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0022] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] As an important part of the orthopedic surgical navigation and positioning system, the tracer is used to indicate the patient's spatial position during orthopedic surgery. In the surgical navigation system, the optical tracking device emits light, and the tracer ball in the tracer can reflect the light. The optical tracking device captures the light reflected by the tracer ball and calculates the three-dimensional coordinate position of the tracer ball in space, thereby determining the position of the surgical site or instrument connected to it. During the operation, the tracer ball moves with the movement of the bones or surgical instruments. The optical tracking device can monitor the position changes of the tracer ball in real time, thereby providing doctors with real-time movement trajectories of the surgical site or instrument, allowing doctors to accurately grasp the progress of the operation.

[0024] It can be seen that a firm connection between the tracer and the patient and a stable relative position are important foundations for ensuring surgical accuracy. When the connection between the tracer and the patient is loose, it is easy for the position information tracked by the optical tracking device to deviate, thereby reducing surgical accuracy.

[0025] The current bone needle-fixed tracer requires at least two bone needles to be inserted through soft tissues such as skin and muscle into bone tissue, and the tracer is installed on the bone needles to achieve fixation.

[0026] However, the bone needle is prone to deviation after being inserted, making it difficult to install the tracer. When the bone needle has a large deviation, the bone needle needs to be removed and inserted repeatedly, which prolongs the operation time and aggravates the patient's trauma.

[0027] In order to at least solve the problem that the tracer is difficult to install when the bone needle is deviated, the embodiment of the present application provides a bone needle fixed tracer 100 that can adapt to the position deviation of the bone needle, thereby reducing the difficulty of installing the bone needle fixed tracer 100.

[0028] The bone needle fixed tracer 100 of an embodiment of the present application is described below with reference to the accompanying drawings.

[0029] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the bone needle fixed tracer 100 of the embodiment of the present application includes: a clamping mechanism 1 and a tracer mechanism 2. The clamping mechanism 1 includes a clamping member 11, a clamping structure 12 and a splint 13. The clamping member 11 includes a main body 111, a first clamping arm 112 and a second clamping arm 113. The first clamping arm 112 and the splint 13 are both used to abut against the first bone needle. The splint 13 is arranged corresponding to the first clamping arm 112. The splint 13 is rotatably arranged on the main body 111 so as to be able to generate an inclination angle relative to the first clamping arm 112. The first clamping arm 112 is elastically connected to the main body 111 so as to be able to approach or move away from the splint 13. The clamping structure 12 and the second clamping arm 113 are both used to abut against the second bone needle. The clamping structure 12 is arranged on the main body 111 and is arranged corresponding to the second clamping arm 113. The second clamping arm 113 is elastically connected to the main body 111 so as to be able to approach or move away from the splint 13. The tracing mechanism 2 is disposed on the main body 111 , and the tracing mechanism 2 is used to feed back position information.

[0030] When installing the bone needle fixed tracer 100 of this embodiment, the first bone needle is inserted into the gap between the splint 13 and the first clamp arm 112. Since the splint 13 is rotatably arranged on the main body 111 and can have an inclination angle relative to the first clamp arm 112, the end surface of the splint 13 can fit with the first bone needle, so that the first clamp arm 112 is close to the splint 13, thereby clamping the first bone needle. The second bone needle is inserted into the gap between the second clamp arm 113 and the clamping structure 12, and the second clamp arm 113 is close to the clamping structure, thereby clamping the second bone needle. The bone needle fixed tracer 100 is installed and fixed by the clamping action of the first bone needle and the second bone needle.

[0031] When disassembling the bone needle fixed tracer 100 of this embodiment, the first clamp arm 112 is moved away from the clamp plate 13, thereby releasing the clamping of the first bone needle. The second clamp arm 113 is moved away from the clamping structure 12, thereby releasing the clamping of the second bone needle. By releasing the clamping effect on the first bone needle and the second bone needle, the bone needle fixed tracer 100 is disassembled.

[0032] Since the splint 13 is rotatable, the splint 13 can flexibly adjust the angle formed between itself and the first clamping arm 112, so as to accurately fit the first bone needle, so that the first clamping arm 112 and the splint 13 can stably clamp the bone needle, avoiding unstable clamping caused by angle mismatch, thereby adapting to the position deviation of the first bone needle, thereby reducing the difficulty of installing the bone needle fixed tracer 100.

[0033] Moreover, since the splint 13 is rotatable, it can contact the first bone needle at a suitable angle, and the contact area between the splint 13 and the first bone needle can be optimized, so that the clamping force generated between the splint 13 and the first clamping arm 112 can be evenly distributed on the surface of the first bone needle, thereby reducing the dispersion of the clamping force and further improving the stability of the fixation of the first bone needle.

[0034] In addition, in different orthopedic surgeries, different types of bone needles will be used according to the patient's bone growth and the type of bone injury. By making the splint 13 rotatable, the clamping mechanism 1 can clamp multiple types of bone needles, thereby increasing the versatility of the bone needle fixed tracer 100 of this embodiment.

[0035] It should be noted that the first and the second bone needle are only for distinguishing the two bone needles, and do not imply the order in which the bone needles are inserted into the bone tissue. The first bone needle may be inserted into the bone tissue before the second bone needle, or the first bone needle may be inserted into the bone tissue after the second bone needle.

[0036] In some embodiments, the clamping mechanism 1 includes a rotating shaft, which is disposed on the main body 111 and extends along the length direction a of the main body. The rotating shaft passes through the clamping plate 13 along the length direction a of the main body, and the clamping plate 13 is rotatably disposed around the length direction a of the main body.

[0037] As some examples, the length direction a of the main body is as follows: Figure 4 As indicated by the arrow at a in the middle.

[0038] By making the splint 13 rotatable around the length direction a of the main body, the splint 13 can flexibly adjust the angle formed by itself and the first clamp arm 112, so as to accurately fit the first bone needle and make the splint 13 contact the first bone needle at a suitable angle.

[0039] In other embodiments, the clamping mechanism 1 includes a rotating shaft, which is arranged on the main body 111 and extends along the height direction b of the main body. The rotating shaft passes through the clamping plate 13 along the height direction b of the main body, and the clamping plate 13 is rotatable around the height direction b of the main body.

[0040] As some examples, the height direction b of the main body is as follows: Figure 4 As indicated by the arrow at b.

[0041] By making the splint 13 rotatable around the height direction b of the main body, the splint 13 can flexibly adjust the angle formed by itself and the first clamp arm 112, so as to accurately fit the first bone needle and make the splint 13 contact the first bone needle at a suitable angle.

[0042] In some optional embodiments, the rotating shaft sleeve is provided with a damping ring, and the damping ring is used to generate damping to prevent the clamping plate 13 from rotating too fast.

[0043] In some optional embodiments, the end surface of the splint 13 for abutting against the first bone needle is a plane, so as to increase the fit between the splint 13 and the first bone needle.

[0044] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the first clamp arm 112 includes a clamp arm body 1121 elastically connected to the main body 111 and an abutment portion 1122 arranged on the clamp arm body 1121, the abutment portion 1122 has a first end face 1124 and a second end face 1125, the first end face 1124 and the second end face 1125 intersect and form an abutment edge 1126, the abutment edge 1126 is used to abut with the first bone needle, and is arranged opposite to the splint 13.

[0045] The contact area between the abutting edge 1126 and the first bone needle is small, and when the abutting edge 1126 abuts against the first bone needle, a point contact or approximate point contact is formed between the abutting edge 1126 and the first bone needle. As a result, the first bone needle can have a slight position change relative to the abutting edge 1126, and the abutting edge 1126 can also produce a slight position change to adapt to the position deviation of the first bone needle in different directions. The position deviation of the first bone needle can be adapted by the abutting edge 1126, thereby further reducing the difficulty of installing the bone needle fixed tracer 100.

[0046] The splint 13 is rotatably disposed on the main body 111, and can be rotated according to the position of the first bone needle, so as to form a better fitting angle with the first bone needle. The abutment edge 1126 can adapt to the position deviation of the first bone needle in multiple directions. The bone needle fixed tracer 100 of this embodiment can greatly improve the adaptability of the clamping mechanism 1 to the position deviation of the first bone needle through the cooperation between the abutment portion 1122 and the splint 13, thereby reducing the difficulty of installing the bone needle fixed tracer 100.

[0047] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the clamping structure 12 is a clamping groove 121 for clamping the second bone needle, and the clamping groove 121 is arranged opposite to the second clamping arm 113.

[0048] The oppositely disposed clamping groove 121 and the second clamping arm 113 can apply a clamping force to the second bone needle so as to stably fix the second bone needle, thereby firmly clamping the second bone needle.

[0049] In other embodiments, the clamping structure 12 is a rotating plate, which is disposed opposite to the second bone needle. The rotating plate is rotatably disposed on the main body 111 so as to generate an inclination angle relative to the second clamping arm 113 .

[0050] Since the rotating plate is rotatable, the rotating plate can flexibly adjust the angle formed by itself and the second clamping arm 113, so as to accurately fit the second bone needle, so that the second clamping arm 113 and the rotating plate can stably clamp the bone needle, avoiding unstable clamping caused by angle mismatch, thereby adapting to the position deviation of the second bone needle, thereby reducing the difficulty of installing the bone needle fixed tracer 100.

[0051] Moreover, since the turning plate is rotatable, it can contact the second bone needle at a suitable angle, and the contact area between the turning plate and the second bone needle can be optimized, so that the clamping force generated between the turning plate and the second clamping arm 113 can be evenly distributed on the surface of the second bone needle, thereby reducing the dispersion of the clamping force and further improving the stability of the fixation of the second bone needle.

[0052] In addition, by making the rotating plate rotatable, the clamping mechanism 1 can further adapt to various types of bone needles, thereby further increasing the versatility of the bone needle fixed tracer 100 of this embodiment.

[0053] Combination Figure 3 and Figure 4 As shown, in some embodiments, in the width direction of the main body 111, the first clamp arm 112 and the second clamp arm 113 are located on both sides of the main body 111, one end of the main body 111 in the length direction of the main body 111 is elastically connected to the first clamp arm 112 and defines a first groove 1123, and the other end of the main body 111 in the length direction of the main body 111 is elastically connected to the second clamp arm 113 and defines a second groove 1131.

[0054] When the first clamp arm 112 approaches the main body 111 , the first clamp arm 112 deforms toward the first groove 1123 . The first groove 1123 provides space for the first clamp arm 112 to deform relative to the main body 111 , thereby preventing the main body 111 from hindering the deformation of the first clamp arm 112 .

[0055] When the second clamp arm 113 approaches the main body 111 , the second clamp arm 113 deforms toward the second groove 1131 . The second groove 1131 provides space for the second clamp arm 113 to deform relative to the main body 111 , thereby preventing the main body 111 from hindering the deformation of the second clamp arm 113 .

[0056] The first clamp arm 112 and the second clamp arm 113 are respectively disposed on both sides of the main body 111, which can increase the space utilization of the clamping member 11. In addition, the first clamp arm 112 and the second clamp arm 113 are located on both sides of the main body 111, providing relatively independent spaces for their respective activities, thereby avoiding mutual interference between the activities of the first clamp arm 112 and the second clamp arm 113.

[0057] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the clamping mechanism 1 also includes a locking stud 14 and a first locking knob 15, the locking stud 14 includes a stud head 141 and a stud rod 142 that are connected to each other, the stud rod 142 extends along the width direction c of the main body, the stud rod 142 is penetrated by the main body 111, the first clamp arm 112 and the second clamp arm 113, the first locking knob 15 is movably provided on the stud rod 142 in the extension direction of the stud rod 142, one of the first clamp arm 112 and the second clamp arm 113 abuts against the first locking knob 15, and the other of the first clamp arm 112 and the second clamp arm 113 abuts against the stud head 141.

[0058] When the first locking knob 15 is tightened, the first clamp arm 112 and the second clamp arm 113 approach the main body 111 and clamp the first bone needle and the second bone needle under the squeezing action of the first locking knob 15 and the stud head 141. When the first locking knob 15 is loosened, the first clamp arm 112 and the second clamp arm 113 are elastically deformed and move away from the main body 111, thereby releasing the clamping of the first bone needle and the second bone needle.

[0059] By setting the first locking knob 15, the position adjustment of the first clamp arm 112 and the second clamp arm 113 is easier. The first clamp arm 112 and the second clamp arm 113 can be loosened and locked by adjusting the position of the first locking knob 15, so that the installation, adjustment and disassembly of the bone needle fixed tracer 100 of this embodiment can be completed quickly during the operation, saving operation time.

[0060] By adjusting the tightening degree of the first locking knob 15, the clamping force of the first clamp arm 112 and the second clamp arm 113 on the bone needle can be adjusted, thereby increasing the clamping effect of the first clamp arm 112 on the first bone needle and increasing the clamping effect of the second clamp arm 113 on the second bone needle. In addition, by adjusting the clamping force of the first clamp arm 112 and the second clamp arm 113 on the bone needle, the adaptability of the clamping mechanism 1 to bone needles of different specifications and models can be increased, so as to further improve the versatility of the clamping mechanism 1.

[0061] In some specific embodiments, the locking stud 14 and the first locking knob 15 are threadedly connected.

[0062] When the first locking knob 15 is tightened on the stud rod 142, the friction between the threads can provide a stable locking force, so that the first clamping arm 112 and the second clamping arm 113 can firmly clamp the first bone needle and the second bone needle.

[0063] The locking stud 14 and the first locking knob 15 are threadedly connected, which makes it easier to adjust the position of the first locking knob 15. The first clamp arm 112 and the second clamp arm 113 can be loosened and locked by rotating the first locking knob 15. The installation, adjustment and disassembly of the bone needle fixed tracer 100 of this embodiment can be completed quickly during the operation, saving operation time.

[0064] In some optional embodiments, the first clamp arm 112 and the second clamp arm 113 are both loosely matched with the stud rod 142 so that the stud rod 142 can swing relative to the first clamp arm 112 and the second clamp arm 113, thereby increasing the regulating effect of the stud rod 142 on the first clamp arm 112 and the second clamp arm 113.

[0065] Combination Figure 7 , Figure 8 and Fig.13 As shown, in some embodiments, the tracing mechanism 2 includes an adjusting component 21 and a tracing component 22 , and the adjusting component 21 includes: a vertical pole 211 , a mounting member 214 and a locking member 215 .

[0066] The vertical rod 211 includes a rod body 212 and a mounting portion 213. One end of the rod body 212 is connected to the main body 111, and the other end of the rod body 212 is connected to the mounting portion 213. The mounting portion 213 defines a rotating groove 2131 extending circumferentially along the mounting portion 213. The mounting portion 213 defines a rotating cavity 2132 connected to the rotating groove 2131. The outer peripheral surface of the mounting portion 213 is provided with a first tooth portion 2133.

[0067] The mounting member 214 is connected to the mounting portion 213 in a manner that it can rotate along the circumferential direction of the mounting portion 213. The mounting member 214 is provided with a second tooth portion 2142 that is engaged with the first tooth portion 2133. The tracer component 22 is connected to the mounting member 214 and is used to feedback position information.

[0068] The locking member 215 is passed through the rotating groove 2131 and installed in the rotating cavity 2132. The locking member 215 is passed through the mounting member 214 and abuts against the mounting member 214. The locking member 215 has a locking state and an unlocking state relative to the mounting member 214. When the locking member 215 is in the locking state, the first tooth portion 2133 and the second tooth portion 2142 are used to limit the rotation of the mounting member 214. When the locking member 215 is in the unlocking state, the first tooth portion 2133 and the second tooth portion 2142 are configured to jump teeth when subjected to force, so that the mounting member 214 can rotate relative to the mounting portion 213.

[0069] The first tooth portion 2133 and the second tooth portion 2142 each include a plurality of engaging teeth, and the first tooth portion 2133 and the second tooth portion 2142 are configured to be able to jump teeth when subjected to force, which means that the engaging teeth of the first tooth portion 2133 are separated from the engaging teeth of the currently mating second tooth portion 2142, and are engaged with the engaging teeth at other positions of the second tooth portion 2142.

[0070] One end of the rod body 212 is connected to the main body 111 , and they may be connected in an integral manner or in separate parts, which is not limited in this embodiment.

[0071] When the angle of the tracer assembly 22 needs to be adjusted, the locking member 215 is in an unlocked state, and an external force is applied to the mounting member 214 to rotate the mounting member 214 relative to the mounting portion 213, so that the tracer assembly 22 can rotate along the circumferential direction of the mounting portion 213. After the angle of the tracer assembly 22 is adjusted, the locking member 215 is in a locked state to limit the mounting member 214 from rotating relative to the mounting portion 213.

[0072] When the locking member 215 is in the unlocked state, the first tooth portion 2133 and the second tooth portion 2142 are configured to be able to jump teeth when subjected to force, and the clamping action between the first tooth portion 2133 and the second tooth portion 2142 provides a certain resistance, so that the mounting member 214 can avoid arbitrary rotation when there is no external force, thereby ensuring the stability of the tracer assembly 22. When the position needs to be adjusted, a certain external force needs to be applied to make the first tooth portion 2133 and the second tooth portion 2142 jump teeth, thereby preventing the angle change caused by the operator's misoperation through the resistance between the first tooth portion 2133 and the second tooth portion 2142. In addition, through the tooth-jumping function of the first tooth portion 2133 and the second tooth portion 2142, the mounting member 214 can be quickly adjusted to different angular positions, thereby improving the operating efficiency of the tracer mechanism 2.

[0073] When the locking member 215 is in the locking state, the first tooth portion 2133 and the second tooth portion 2142 restrict the mounting member 214 from rotating relative to the mounting portion 213 , thereby increasing the stability of the tracer assembly 22 .

[0074] The locking member 215 is passed through the rotating groove 2131 and installed in the rotating cavity 2132, and is passed through the mounting member 214 and abuts against the mounting member 214, thereby enhancing the overall structural stability of the adjustment component 21, making the mounting component 214 more stable during rotation, and improving the tracking accuracy of the tracking component 22.

[0075] Combination Figure 7 , Fig.11 and Fig.12 In some embodiments, the mounting member 214 includes a rotating mounting member 2141 and a mounting rod 2144, a second tooth portion 2142 is provided on one side of the rotating mounting member 2141, and a third tooth portion 2143 is provided on the other side of the rotating mounting member 2141, the mounting rod 2144 includes a connecting rod 2147 connected to the tracer assembly 22 and a connecting portion 2148 connected to the connecting rod 2147, the connecting portion 2148 is provided with a fourth tooth portion 2149 engaged with the third tooth portion 2143, when the locking member 215 is in a locked state, the third tooth portion 2143 and the fourth tooth portion 2149 are used to limit the rotation of the connecting portion 2148, and when the locking member 215 is in an unlocked state, the third tooth portion 2143 and the fourth tooth portion 2149 are configured to be able to jump teeth when subjected to force, so that the connecting portion 2148 can rotate relative to the rotating mounting member 2141 along the circumferential direction of the connecting portion 2148.

[0076] The third tooth portion 2143 and the fourth tooth portion 2149 each include a plurality of engaging teeth, and the third tooth portion 2143 and the fourth tooth portion 2149 are configured to be able to jump teeth under force, which means that the engaging teeth of the third tooth portion 2143 are separated from the engaging teeth of the currently mating fourth tooth portion 2149, and are engaged with the engaging teeth at other positions of the fourth tooth portion 2149.

[0077] When the angle of the tracer assembly 22 needs to be adjusted, the locking member 215 is unlocked, and an external force is applied to the rotating mounting member 2141 to rotate the rotating mounting member 2141 relative to the mounting portion 213, so that the tracer assembly 22 can rotate along the circumferential direction of the mounting portion 213. An external force is applied to the connecting portion to rotate the connecting portion 2148 relative to the rotating mounting member 2141, so that the tracer assembly 22 can rotate along the circumferential direction of the connecting portion 2148.

[0078] The mounting component 214 of the present embodiment adjusts the tracing component 22 in all directions, so that the tracing component 22 can adapt to complex usage conditions, thereby enabling the tracing component 22 to meet diverse usage requirements and improve the tracing accuracy of the tracing component 22 .

[0079] When the locking member 215 is in the unlocked state, the third tooth portion 2143 and the fourth tooth portion 2149 are configured to be able to jump teeth when subjected to force, and the clamping action between the third tooth portion 2143 and the fourth tooth portion 2149 provides a certain resistance, so that the mounting member 214 can avoid arbitrary rotation when there is no external force, thereby ensuring the stability of the tracer assembly 22. When the position needs to be adjusted, a certain external force needs to be applied to make the third tooth portion 2143 and the fourth tooth portion 2149 jump teeth, thereby preventing the angle change caused by the operator's misoperation through the resistance between the third tooth portion 2143 and the fourth tooth portion 2149. In addition, through the tooth-jumping function of the third tooth portion 2143 and the fourth tooth portion 2149, the mounting member 214 can be quickly adjusted to different angular positions, thereby improving the operating efficiency of the tracer mechanism 2.

[0080] When the locking member 215 is in the locking state, the third tooth portion 2143 and the fourth tooth portion 2149 restrict the mounting member 214 from rotating relative to the mounting portion 213 , thereby increasing the stability of the tracer assembly 22 .

[0081] Combination Figure 7 and Fig.10 As shown, in some embodiments, the locking member 215 includes: a locking rod 2151 and a second locking knob 2152. A portion of the locking rod 2151 is inserted through the rotating mounting member 2141 and the connecting portion 2148, and another portion of the locking rod 2151 is inserted through the rotating groove 2131 and is installed in the rotating cavity 2132 in a manner that it can rotate along the circumferential direction of the mounting portion 213. The second locking knob 2152 is located on a side of the connecting portion 2148 away from the rotating mounting member 2141 and abuts against the connecting portion 2148. The second locking knob 2152 is connected to the locking rod 2151 in a manner that it can move along the length direction of the locking rod 2151, and the second locking knob 2152 has a locked state and an unlocked state.

[0082] The second locking knob 2152 is connected to the locking rod 2151 in a manner that it can move along the length direction of the locking rod 2151. The second locking knob 2152 has a locking state and an unlocking state. When the second locking knob 2152 is in the locking state, the second locking knob 2152 generates a large squeezing force on the rotating mounting member 2141, the mounting portion 213 and the connecting portion 2148, thereby clamping the first tooth portion 2133 and the second tooth portion 2142, and clamping the third tooth portion 2143 and the fourth tooth portion 2149, thereby limiting the rotation of the rotating mounting member 2141 relative to the mounting portion 213, and limiting the rotation of the connecting portion 2148 relative to the rotating mounting member 2141.

[0083] When the second locking knob 2152 is in the unlocked state, the second locking knob 2152 generates a smaller squeezing force on the rotating mounting member 2141, the mounting portion 213 and the connecting portion 2148, the clamping strength between the first tooth portion 2133 and the second tooth portion 2142 is smaller, and the clamping strength between the third tooth portion 2143 and the fourth tooth portion 2149 is smaller, so that the rotating mounting member 2141 is subjected to force to rotate relative to the mounting portion 213, and the connecting portion 2148 is subjected to force to rotate relative to the rotating mounting member 2141.

[0084] Since the locking rod 2151 is inserted into the rotation groove 2131 and can rotate in the rotation cavity 2132, when adjusting the position and angle of the tracer assembly 22, the second locking knob 2152 is first rotated to the unlocked state, and the mounting member 214 and the connecting portion 2148 can be flexibly rotated at this time. After adjusting to a suitable position, the second locking knob 2152 is tightened to restore the components to the locked state, thereby achieving accurate adjustment and fixation of the position and angle of the tracer assembly 22.

[0085] The locking rod 2151 passes through the rotating mounting member 2141, the connecting portion 2148 and the rotating cavity 2132 of the mounting portion 213, forming a stable connection structure, thereby enhancing the overall structural stability of the adjustment assembly 21, making the mounting member 214 more stable during the rotation process, and improving the tracking accuracy of the tracking assembly 22.

[0086] In some specific embodiments, the second locking knob 2152 is threadedly connected to the locking rod 2151 .

[0087] The second locking knob 2152 is threadedly connected to the locking rod 2151, and has a reliable locking function. Through the threaded connection, the second locking knob 2152 can stably realize the locking and unlocking operations on the locking rod 2151, and can remain stable for a long time in the locked state, and is not prone to loosening, thereby improving the reliability of the tracer mechanism 2.

[0088] like Figure 7 As shown, in some optional embodiments, the adjustment assembly 21 also includes a spring 216, which stops between the rotating mounting member 2141 and the connecting portion 2148. The spring 216 is used to drive the rotating mounting member 2141 and the connecting portion 2148 to move away from each other when the second locking knob 2152 is in an unlocked state.

[0089] When adjusting the tracer assembly 22, the elastic force of the spring 216 can make the rotating mounting member 2141 and the connecting portion 2148 move away from each other, thereby further reducing the clamping strength between the third tooth portion 2143 and the fourth tooth portion 2149, so that the operator can control the rotation between the rotating mounting member 2141 and the connecting portion 2148 by applying a smaller external force, thereby reducing the difficulty of adjusting the tracer assembly 22.

[0090] Combination Figure 7 and Fig. 9 As shown, the adjustment assembly 21 further includes a rotating body 217 , which is rotatably disposed in the rotating cavity 2132 . The rotating body 217 is provided with a mounting groove 2171 , and the locking rod 2151 extends into the mounting groove 2171 and is connected to the rotating body 217 .

[0091] The rotating body 217 provides a support structure for the locking rod 2151 in the rotating cavity 2132, so that the locking rod 2151 is more firmly arranged in the rotating cavity 2132. The cooperation between the rotating body 217 and the rotating cavity 2132 can reduce the shaking of the locking rod 2151 in the inner and outer directions of the rotating cavity 2132, so that the tracer assembly 22 is more stable.

[0092] The rotating body 217 is rotatably disposed in the rotating cavity 2132, providing a more stable support for the rotation of the locking rod 2151. When adjusting the angle of the tracer assembly 22, the rotating body 217 can ensure that the locking rod 2151 rotates according to a predetermined trajectory, thereby preventing the locking rod 2151 from rotating and deviating, and reducing the difficulty of the operator during the adjustment process.

[0093] Combination Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, in some embodiments, the tracer assembly 22 includes a tracer ball 221, a tracer plate 222, a buckle 223 and a knob 224, the tracer ball 221 is mounted on the tracer plate 222, the tracer ball 221 is used to feedback position information, the tracer plate 222 is provided with a mounting hole 2221, the mounting rod 2144 also includes a clamping portion 2145 connected to the connecting rod 2147, the clamping portion 2145 is located on the side of the connecting rod 2147 away from the connecting portion 2148, the clamping portion 2145 defines a clamping slot 2146, and the buckle 223 includes mutually connected The buckle body 2231 and the claw 2232, the buckle body 2231 is arranged in the mounting hole 2221, the claw 2232 is arranged in the slot 2146, the knob 224 is rotatably arranged in the mounting hole 2221, the knob 224 has a clamping position and a separation position relative to the buckle 223, the knob 224 at the clamping position is connected to the claw 2232, and the claw 2232 is elastically deformed so that the claw 2232 is clamped in the slot 2146, and the knob 224 at the separation position is separated from the claw 2232 so that the claw 2232 is released from the clamping.

[0094] When the tracer component 22 needs to be installed on the adjustment component 21, the buckle body 2231 of the buckle 223 is aligned with the mounting hole 2221, and the claw 2232 is aligned with the slot 2146. The tracer component 22 can be quickly placed on the mounting rod 2144, and the knob 224 is located in the engaging position. The knob 224 is connected to the claw 2232, and the claw 2232 is elastically deformed so that the claw 2232 is engaged in the slot 2146, so that the tracer component 22 is installed on the adjustment component 21.

[0095] When it is necessary to separate the tracer assembly 22 from the adjustment assembly 21 , the knob 224 is located at the separation position, and the knob 224 is separated from the claw 2232 to release the clamping of the claw 2232 , and the tracer assembly 22 is removed from the adjustment assembly, thereby achieving the separation of the tracer assembly 22 from the adjustment assembly 21 .

[0096] The knob 224 is provided to reduce the difficulty of installing and removing the tracer assembly 22 , making the installation and removal processes of the tracer assembly 22 simple and quick.

[0097] Combination Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, in some embodiments, the knob 224 includes a knob body 2241, a positioning boss 2242 and a driving portion 2243. The knob body 2241 is connected to the positioning boss 2242. A first positioning platform 2222 and a second positioning platform 2223 are provided in the mounting hole 2221. The positioning boss 2242 is located between the first positioning platform 2222 and the second positioning platform 2223. When the knob 224 is in the clamping position, the positioning boss 2242 abuts against the first positioning platform 2222. When the knob 224 is in the separation position, the positioning boss 2242 abuts against the first positioning platform 2222. 42 is in contact with the second positioning platform 2223; the driving portion 2243 is connected to the button body 2241, the button body 2231 is provided with a through hole 2233, the driving portion 2243 is passed through the through hole 2233, and is located on the inner side of the claw 2232 in the inward and outward directions of the button body 2231. When the knob 224 is in the engaged position, the driving portion 2243 is connected to the claw 2232 and presses the claw 2232 outward in the inward and outward directions of the button body 2231. When the knob 224 is in the separated position, the driving portion 2243 is separated from the claw 2232.

[0098] The first positioning platform 2222 and the second positioning platform 2223 can define the engaging position and the disengaging position of the knob 224. When the knob 224 is in the engaging position, the positioning boss 2242 abuts against the first positioning platform 2222, ensuring that the knob 224 is in the correct locking position. At this time, the driving part 2243 can stably squeeze the claw 2232 outward, so that the claw 2232 is firmly engaged in the slot 2146, thereby ensuring the reliability of the connection between the tracer assembly 22 and the mounting rod 2144. When the knob 224 is in the disengaging position, the positioning boss 2242 abuts against the second positioning platform 2223, clearly indicating to the operator that the knob 224 is in the unlocked state, and the claw 2232 is separated from the slot 2146, which facilitates the disassembly or adjustment of the tracer assembly 22.

[0099] When the driving part 2243 is in the engaging position, it is connected to the claw 2232 and squeezes the claw 2232 outward, so that the claw 2232 can generate sufficient engaging force, thereby making the claw 2232 firmly engaged in the slot 2146, so that the claw 2232 is not easy to be separated from the slot 2146, thereby improving the stability of the tracer assembly 22 during operation, thereby ensuring that the tracer ball 221 can accurately feedback the position information.

[0100] When the knob 224 is located at the separation position, the driving part 2243 is separated from the claw 2232, and the claw 2232 can be released from the clamping state smoothly, thereby making the disassembly process of the tracer assembly 22 simple and quick.

[0101] The driving portion 2243 passes through the through hole 2233 of the buckle body 2231 and is located inside the claw 2232 , thereby fully utilizing the space inside the buckle body 2231 , making the structure of the tracer assembly 22 more compact and facilitating miniaturization of the tracer assembly 22 .

[0102] Combination Fig.13 and Fig.14 As shown, in some specific embodiments, the tracer assembly 22 also includes a snap ring 225, the tracer plate 222 is provided with a positioning groove 2224, one end of the positioning groove 2224 forms an opening, the tracer ball 221 is arranged in the positioning groove 2224 through the opening, the snap ring 225 is connected to the tracer plate 222, and covers the opening of the positioning groove 2224, and the snap ring 225 is connected to the tracer ball 221.

[0103] The design of an opening at one end of the positioning groove 2224 facilitates the placement of the tracer ball 221 therein, and the retaining ring 225 covers the opening and is connected to the tracer ball 221, which can effectively prevent the tracer ball 221 from escaping from the positioning groove 2224, thereby allowing the tracer ball 221 to be stably located in the positioning groove 2224.

[0104] In some specific embodiments, the tracer plate 222 is provided with a locking protrusion and an unlocking protrusion. When the knob 224 is in the engaging position, the button body 2241 points to the locking protrusion. When the knob 224 is in the separating position, the button body 2241 points to the unlocking protrusion.

[0105] The locking protrusion and the unlocking protrusion provide clear operation guidance for the operator. The operator can quickly and intuitively determine the current position state of the knob 224 by observing whether the button body 2241 is pointing to the locking protrusion or the unlocking protrusion, thereby improving the accuracy of the operation.

[0106] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A bone needle fixed tracer, characterized in that: include: The clamping mechanism comprises a clamping member, a clamping structure and a clamping plate, wherein the clamping member comprises a main body, a first clamping arm and a second clamping arm, wherein the first clamping arm and the clamping plate are both used to abut against a first bone needle, the clamping plate is arranged corresponding to the first clamping arm, the clamping plate is rotatably arranged on the main body so as to be able to generate an inclination angle relative to the first clamping arm, and the first clamping arm is elastically connected to the main body so as to be able to approach or move away from the clamping plate, The clamping structure and the second clamping arm are both used to abut against the second bone needle. The clamping structure is arranged on the main body and corresponds to the second clamping arm. The second clamping arm is elastically connected to the main body so as to be able to approach or move away from the splint. The tracing mechanism is arranged on the main body, and is used for feeding back position information.

2. The bone needle fixed tracer according to claim 1, characterized in that: The first clamp arm includes a clamp arm body elastically connected to the main body and an abutment portion arranged on the clamp arm body, the abutment portion has a first end face and a second end face, the first end face and the second end face intersect and form an abutment edge, the abutment edge is used to abut with the first bone needle and is arranged opposite to the splint.

3. The bone needle fixed tracer according to claim 1, characterized in that: The clamping structure is a clamping groove for clamping the second bone needle, and the clamping groove is arranged opposite to the second clamping arm.

4. The bone needle fixed tracer according to claim 1, characterized in that: In the width direction of the main body, the first clamp arm and the second clamp arm are located on both sides of the main body, one end of the main body in the length direction of the main body is elastically connected to the first clamp arm and defines a first groove, and the other end of the main body in the length direction of the main body is elastically connected to the second clamp arm and defines a second groove.

5. The bone needle fixed tracer according to claim 4, characterized in that: The clamping mechanism also includes a locking stud and a first locking knob, the locking stud includes a stud head and a stud rod connected to each other, the stud rod extends along the width direction of the main body, the stud rod is penetrated by the main body, the first clamp arm and the second clamp arm, the first locking knob is movably provided on the stud rod in the extension direction of the stud rod, one of the first clamp arm and the second clamp arm abuts against the first locking knob, and the other of the first clamp arm and the second clamp arm abuts against the stud head.

6. The bone needle fixed tracer according to any one of claims 1 to 5, characterized in that: The tracer mechanism comprises an adjustment component and a tracer component, and the adjustment component comprises: A vertical rod, comprising a rod body and a mounting portion, wherein one end of the rod body is connected to the main body, and the other end of the rod body is connected to the mounting portion, the mounting portion defines a rotation groove extending along the circumference of the mounting portion, the mounting portion defines a rotation cavity connected to the rotation groove, and the outer circumferential surface of the mounting portion is provided with a first tooth portion; A mounting member is connected to the mounting portion in a manner that it can rotate along the circumferential direction of the mounting portion, the mounting member is provided with a second tooth portion that is engaged with the first tooth portion, the tracing assembly is connected to the mounting member, and the tracing assembly is used to feed back position information; A locking member is passed through the rotation groove and installed in the rotation cavity. The locking member is passed through the mounting member and abuts against the mounting member. The locking member has a locking state and an unlocking state relative to the mounting member. When the locking member is in the locking state, the first tooth portion and the second tooth portion are used to limit the rotation of the mounting member. When the locking member is in the unlocking state, the first tooth portion and the second tooth portion are configured to jump teeth when subjected to force, so that the mounting member can rotate relative to the mounting portion.

7. The bone needle fixed tracer according to claim 6, characterized in that: The mounting member comprises a rotating mounting member and a mounting rod, the second tooth portion is provided on one side of the rotating mounting member, the third tooth portion is provided on the other side of the rotating mounting member, the mounting rod comprises a connecting rod connected to the tracer assembly and a connecting portion connected to the connecting rod, the connecting portion is provided with a fourth tooth portion engaged with the third tooth portion, When the locking member is in the locking state, the third tooth portion and the fourth tooth portion are used to limit the rotation of the connecting portion; when the locking member is in the unlocking state, the third tooth portion and the fourth tooth portion are configured to be able to jump teeth when subjected to force, so that the connecting portion rotates relative to the rotating mounting member along the circumferential direction of the connecting portion.

8. The bone needle fixed tracer according to claim 7, characterized in that: The locking member comprises: A locking rod, a part of which is passed through the rotating mounting member and the connecting portion, and another part of which is passed through the rotating groove and is installed in the rotating cavity in a manner that it can rotate along the circumferential direction of the mounting portion. A second locking knob, the second locking knob is located on the side of the connecting portion away from the rotating mounting member and abuts against the connecting portion, the second locking knob is connected to the locking rod in a manner that it can move along the length direction of the locking rod, and the second locking knob has the locking state and the unlocking state.

9. The bone needle fixed tracer according to claim 7 or 8, characterized in that: The tracer assembly includes a tracer ball, a tracer plate, a buckle and a knob, wherein the tracer ball is mounted on the tracer plate, and the tracer ball is used to feedback position information, the tracer plate is provided with a mounting hole, and the mounting rod further includes a clamping portion connected to the connecting rod, the clamping portion is located on a side of the connecting rod away from the connecting portion, and the clamping portion defines a clamping slot, The buckle includes a buckle body and a claw connected to each other, the buckle body is arranged in the mounting hole, the claw is arranged in the slot, and the knob is rotatably arranged in the mounting hole. The knob has a clamping position and a separation position relative to the buckle. The knob located at the clamping position is connected to the claw and causes the claw to elastically deform so that the claw is clamped in the slot. The knob located at the separation position is separated from the claw so that the claw is released from the clamping.

10. The bone needle fixed tracer according to claim 9, characterized in that: The knob comprises a knob body, a positioning boss and a driving part, the knob body is connected to the positioning boss, a first positioning platform and a second positioning platform are arranged in the mounting hole, the positioning boss is located between the first positioning platform and the second positioning platform, when the knob is located at the clamping position, the positioning boss abuts against the first positioning platform, when the knob is located at the separation position, the positioning boss abuts against the second positioning platform; The driving part is connected to the button body, and the button body is provided with a through hole. The driving part is passed through the through hole and is located on the inner side of the claw in the inner and outer directions of the button body. When the knob is located at the engaging position, the driving part is connected to the claw and presses the claw outward in the inner and outer directions of the button body. When the knob is located at the separation position, the driving part is separated from the claw.

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