An adjustable bilateral symmetrical pedicle screw placement assisting device

Abstract

The application provides an adjustable bilateral symmetrical pedicle screw placement auxiliary device, and belongs to the technical field of pedicle screw placement. The device comprises a clamping and fixing mechanism, the top of the clamping and fixing mechanism is provided with a first connecting frame, the side, away from the clamping and fixing mechanism, of the first connecting frame is provided with a second connecting frame, and the second connecting frame is provided with first lightened grooves at equal intervals. The installation adjusting mechanism is arranged, so that one needle placement sleeve can be quickly installed on the center frame by the installation adjusting mechanism, the position and angle of the needle placement sleeve can be flexibly adjusted by the cooperation of various components in the installation mechanism, after the installation of one needle placement sleeve, the installation position and angle of another needle placement sleeve are measured by the infrared emitter body installed on the needle placement sleeve, and after the measurement, another needle placement sleeve is quickly and stably installed on the center frame by the installation adjusting structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pedicle screw placement, and particularly relates to an adjustable bilateral symmetrical pedicle screw placement auxiliary device. BACKGROUND

[0002] Percutaneous pedicle screw fixation is an image-guided technique in which a pedicle screw-rod system is implanted through a hole in the skin, including pedicle screw implantation, connecting rod implantation, pedicle screw cap implantation, and necessary pedicle distraction or compression techniques.

[0003] Percutaneous pedicle screw fixation is often required, but there are often problems during the placement process. First, after selecting the entry point, the placement operation may shift due to the inability to maintain complete stability of the hands during operation, causing the placement direction to deviate from the design. Second, the cone is often symmetrical on both sides of the pedicle, and after placing the screw on one side, the depth and angle of the previous screw placement need to be referenced when placing the screw on the other side. This part of the positioning operation is often estimated subjectively by experience and eyesight, which increases the number of fluoroscopy and the risk of operation. Therefore, the present application provides an adjustable bilateral symmetrical pedicle screw placement auxiliary device to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an adjustable bilateral symmetrical pedicle screw placement auxiliary device. By setting the installation adjustment mechanism, one needle placement sleeve can be quickly installed on the center framework using the installation adjustment mechanism, and the position and angle of the needle placement sleeve can be flexibly adjusted using the cooperation of the components in the installation mechanism. After installing one needle placement sleeve, the installation position and angle of the other needle placement sleeve are measured using the infrared emitter body installed on the needle placement sleeve. After measurement, the other needle placement sleeve is quickly and stably installed on the center framework using the installation adjustment structure. The above settings can solve the problems of inconvenient positioning and poor accuracy of existing screw placement operations.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] The application discloses an adjustable bilateral symmetrical pedicle screw placement auxiliary device, which comprises a clamping fixing mechanism, a first connecting frame is arranged on the top of the clamping fixing mechanism, a second connecting frame is arranged on the side, away from the clamping fixing mechanism, of the first connecting frame, first lightened grooves are equidistantly arranged on the second connecting frame, the clamping fixing mechanism, the first connecting frame and the second connecting frame are two in number, a center framework is arranged between the two second connecting frames, two needle placement sleeves are arranged on one side of the center framework, and an infrared emitter body is arranged on one of the needle placement sleeves; and an installation adjusting mechanism is arranged and used for the installation and adjustment of the needle placement sleeve, and the installation adjusting mechanism is connected with the center framework.

[0007] Optionally, two clamping openings are arranged on the clamping fixing mechanism, one of the clamping openings is arranged at the bottom of the clamping fixing mechanism, and the other clamping opening is arranged at the top of the clamping fixing mechanism; two clamping pieces are arranged at the clamping opening at the top; anti-skid grooves are arranged on the side, close to the first connecting frame, of the clamping pieces; and anti-skid protrusions, matched with the anti-skid grooves in shape, are arranged on the bottom of the first connecting frame.

[0008] Optionally, a second connecting block is fixedly connected to the top end of the first connecting frame; a first connecting block is fixedly connected to the side end, away from the center framework, of the second connecting frame; an installation groove, matched with the second connecting block in shape, is arranged on the first connecting block; a groove is arranged on the second connecting block; grooves are arranged on the two sides of the first connecting block; and a protrusion, matched with the groove in shape, is fixedly connected to the side, close to the first connecting block, of the second connecting block.

[0009] Optionally, the installation adjusting mechanism comprises a rotating block arranged on the center framework; a clamping piece, matched with the needle placement sleeve in shape, is rotatably connected to the side, away from the center framework, of the rotating block; limit blocks are equidistantly arranged on the side, close to the center framework, of the rotating block; limit grooves, matched with the limit blocks in shape, are equidistantly arranged on the center framework; plug-in grooves are equidistantly arranged on the bottom of the center framework; screws are inserted into the plug-in grooves; screw sleeves are arranged on the screws; and third lightened grooves are annularly and equidistantly arranged on the needle placement sleeve.

[0010] Optionally, the center framework has an arc-shaped cross section; the center framework and the two second connecting frames are integrally formed; and the center framework is made of stainless steel.

[0011] Optionally, second lightened grooves are equidistantly arranged on the top of the center framework; and the plug-in grooves are arranged in three groups and are transversely and equidistantly arranged on the center framework.

[0012] Optionally, two limiting sheets are arranged on the two sides of the top of the center framework, and the top of the rotating block is fixedly connected with end blocks matched with the limiting sheets.

[0013] Optionally, a limiting portion is arranged on the side of the limiting sheet away from the center framework, and a buffer cavity is arranged on the side of the end block close to the limiting sheet, and the limiting sheet and the end block are made of plastic material.

[0014] Optionally, a guide end sheet is fixedly connected to the top of the needle placement sleeve, a fourth light-weight groove is annularly and equidistantly arranged on the guide end sheet, and a guide portion is arranged on the top of the guide end sheet.

[0015] Optionally, the outer diameter of the screw is equal to the width of the third light-weight groove, the inner diameter of the screw sleeve is equal to the outer diameter of the screw, and an anti-skid line with a depth of two millimeters is annularly and equidistantly arranged on the outer wall of the screw sleeve.

[0016] Compared with the prior art, the present application has at least the following advantages:

[0017] In the above scheme, by arranging the mounting and adjusting mechanism, one needle placement sleeve can be quickly mounted on the center framework by using the mounting and adjusting mechanism, and the position and angle of the needle placement sleeve can be flexibly adjusted by using the cooperation of various components in the mounting mechanism. After one needle placement sleeve is mounted, the mounting position and angle of another needle placement sleeve are measured by using the infrared emitter body mounted on the needle placement sleeve, and after the measurement is completed, another needle placement sleeve is quickly and stably mounted on the center framework by using the mounting and adjusting mechanism, so that the device can be well used for the auxiliary operation of bilateral symmetrical pedicle screw placement, and the stability during the placement process is ensured. The auxiliary positioning by the device effectively reduces the risk of operation caused by angle deviation during the operation, and the cooperation between the structures effectively improves the work efficiency of the operation.

[0018] By arranging the second connecting frame, the center framework, the anti-skid groove and the anti-skid convex block in the device, the first connecting frame can be further limited and fixed by using the anti-skid groove and the anti-skid convex block, so that the clamping and fixing effect of the clamping and fixing mechanism on the first connecting frame is better, and the first connecting frame plays a stable supporting role during use, thereby facilitating the operation of the pedicle screw placement during the operation. The top of the second connecting frame and the center framework forms an arch-shaped structure, further improving the stability of the device, so that the force received by the device as a whole during the placement of the pedicle screw is more uniform, thereby preventing the device from shaking and ensuring the safe performance of the operation. The two second connecting frames can also assist in limiting the back of the patient's body, and the cooperation between the structures effectively improves the use effect of the device, and the structure is simple and convenient to use.

[0019] By setting the needle sleeve and the infrared emitter body in the device, the depth of the needle sleeve can be recorded, which is convenient for the opposite side to refer to, and after determining the installation position and angle of a needle sleeve, the angle and depth of the opposite needle sleeve can be calibrated by using the infrared emitter body, which reduces the risk of multiple operations and multiple fluoroscopy, and the stable installation of the needle sleeve guides the operation of the opposite nail, effectively avoiding the problem of position and angle deviation caused by unstable hands of the operator during the operation of the nail.

[0020] By providing a guide end piece in the device, the nail can enter the channel of the needle sleeve along the guide part quickly by guiding the nail into the needle sleeve with the guide end piece, and the fourth lightweight slot can reduce the mass of the guide end piece, and the cooperation between the structures effectively makes the use effect of the device better, and the structure is simple and convenient to use.

[0021] By providing a third lightweight slot and a slot in the installation adjustment mechanism, a screw can be inserted through the third lightweight slot, then the screw is inserted into the corresponding slot on the center frame, then the sleeve is sleeved on the screw, and when the sleeve is not completely tightened, the angle of the needle sleeve can be adjusted according to the required angle of the needle sleeve, so that the angle of the needle sleeve is adjusted, so that the needle sleeve is better used for auxiliary operation of the nail, after the connection of the limiting slot and the limiting block is completed, the sleeve on the screw is rotated by hand, and the sleeve is completely fixed, so that the position of the needle sleeve is completely fixed in the third lightweight slot and the slot required, the cooperation of the third lightweight slot and the slot can make two needle sleeves be installed on the center frame with the required distance and depth quickly and stably, and the cooperation between the structures effectively makes the use effect of the installation adjustment mechanism better, and the structure is simple and convenient to use.

[0022] By providing a rotating block and a limiting slot in the installation adjustment mechanism, the rotating block on the clamping piece can be aligned with the limiting slot, then the needle sleeve is pressed towards the center frame, the limiting block on the rotating block is clamped into the limiting slot, the top of the needle sleeve can be quickly limited, and the use of the above-mentioned slot and the third lightweight slot can make the needle sleeve stably at the best nail angle, and the cooperation between the structures can quickly determine the angle and position of the nail, thereby reducing the operation time and controlling the amount of bleeding during the operation to some extent, thereby effectively reducing the risk of operation, and the cooperation between the structures effectively makes the use effect of the installation adjustment mechanism better, and the structure is simple and convenient to use.

[0023] By setting the limiting sheet and end block in the installation adjusting mechanism, the end block can be extruded into the limiting sheet through the process of connecting the limiting block and the limiting groove, and the position of the rotating block is further limited by the limiting sheet and the end block, so that the position of one positioning point of the needle placement sleeve close to the clamping piece does not deviate during the entire operation process, and the other positioning point of the needle placement sleeve does not deviate in angle, the cooperation between the structures is better in stability during use, and the cooperation between the structures effectively makes the use effect of the installation adjusting mechanism better, and the structure is simple and convenient to use.

[0024] In summary, the device can make two needle placement sleeves quickly installed on the center framework for use through the cooperation of the installation adjusting mechanism and the components therein, and the stability of the entire device is good, the connection and disconnection are relatively convenient, the device is convenient to store, the two needle placement sleeves are used to assist in the operation of the staple, the stability during the staple placement process is ensured, and the safety of the operation is ensured, and the device has the advantages of simple structure, convenient and fast use, low production cost, good practicality, and is convenient to promote and use. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0026] Figure 1 is a first perspective view of the adjustable bilateral symmetrical pedicle screw placement auxiliary device;

[0027] Figure 2 is Figure 1 is an enlarged structure diagram of position A in the middle;

[0028] Figure 3 is a structure diagram of the adjustable bilateral symmetrical pedicle screw placement auxiliary device;

[0029] Figure 4 is a three-dimensional sectional structure diagram of the cooperation between the center framework and the limiting sheet;

[0030] Figure 5 is Figure 4 is an enlarged structure diagram of position B in the middle;

[0031] Figure 6 is an exploded three-dimensional structure diagram of the adjustable bilateral symmetrical pedicle screw placement auxiliary device;

[0032] Figure 7 is Figure 6 is an enlarged structure diagram of position C in the middle;

[0033] Figure 8 Figure 8 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in cooperation with a pedicle in a perspective view;

[0034] Figure 9 Figure 9 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in a second perspective view;

[0035] Figure 10 Figure 10 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in a perspective view; Figure 9 Figure 11 is a schematic view of an enlarged structure at D in Figure 10;

[0036] Figure 11 Figure 12 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in a perspective view; Figure 9 Figure 13 is a schematic view of an enlarged structure at E in Figure 12;

[0037] Figure 12 Figure 14 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in a perspective view; Figure 9 Figure 15 is a schematic view of an enlarged structure at F in Figure 14;

[0038] Figure 13 Figure 16 is a schematic view of a three-dimensional structure of the adjustable bilateral symmetrical pedicle screw placement auxiliary device in a perspective view in an actual use state;

[0039] Figure 14 Figure 17 is a schematic view of a connection between a rotating block and a rotating groove.

[0040] Reference signs:

[0041] 1, clamping and fixing mechanism; 101, clamping opening; 102, clamping piece; 103, bolt; 2, first connecting frame; 3, second connecting frame; 4, first lightweight groove; 5, first connecting block; 6, second connecting block; 7, slotted hole; 8, mounting groove; 9, central framework; 10, limiting groove; 11, insertion groove; 12, second lightweight groove; 13, needle placement sleeve; 14, third lightweight groove; 15, guide end piece; 16, fourth lightweight groove; 17, guide portion; 18, screw; 19, screw sleeve; 20, rotating block; 201, rotating groove; 21, clamping piece; 211, rotating block; 22, infrared emitter body; 23, limiting piece; 24, limiting block; 25, end block; 26, buffer cavity; 27, limiting portion; 28, fifth lightweight groove; 29, anti-skid groove; 30, anti-skid protrusion.

[0042] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structures, devices and environments, and the devices and environments can be adjusted or modified by those skilled in the art according to specific needs. DETAILED DESCRIPTION

[0043] The adjustable bilateral symmetrical pedicle screw placement auxiliary device provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be adopted by those skilled in the art for implementation; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0044] It should be noted that the terms "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. in the description indicate that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to implement such a feature, structure or characteristic in combination with other embodiments whether or not it is explicitly described.

[0045] Generally, the terms can be understood at least in part from the context in which they are used. For example, depending at least in part upon the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics in the plural. In addition, the term "based on" can be understood as not necessarily requiring exclusively derived from that which is stated, but rather can allow for being based on a combination of explicitly and inexplicitly described factors.

[0046] It can be understood that the meanings of "on", "above", and "over" in the present application should be interpreted in the broadest way, so that "on" not only means "directly on" something, but also includes the meaning of "on" something with intervening features or layers therebetween, and "above" or "over" not only means the meaning of "above" or "over" something, but also can include the meaning of "above" or "over" something without intervening features or layers therebetween.

[0047] In addition, spatially relative terms such as "under", "below", "lower", "over", "upper" and the like can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.

[0048] As Figures 1 to 14As shown, the embodiment of the present application provides an adjustable bilateral symmetrical pedicle screw placement auxiliary device, which comprises a clamping and fixing mechanism 1, the top of the clamping and fixing mechanism 1 is provided with a first connecting frame 2, the first connecting frame 2 is provided with a fifth lightened groove 28 at equal intervals, which can reduce the weight of the first connecting frame 2. The side of the first connecting frame 2 away from the clamping and fixing mechanism 1 is provided with a second connecting frame 3, and the second connecting frame 3 is provided with a first lightened groove 4 at equal intervals.

[0049] The clamping and fixing mechanism 1, the first connecting frame 2 and the second connecting frame 3 are two, the two second connecting frames 3 are provided with a center framework 9, one side of the center framework 9 is provided with two needle placement sleeves 13, and one of the needle placement sleeves 13 is provided with an infrared emitter body 22.

[0050] The installation and adjustment mechanism is used for the installation and adjustment of the needle placement sleeve 13, and the installation and adjustment mechanism is connected with the center framework 9. Figure 13 As shown, then the first connecting frame 2 is clamped and fixed on the patient's operating bed on both sides by using the clamping and fixing mechanism 1, wherein the specific structure and working principle of the clamping and fixing mechanism 1 are the existing mature technology, and thus will not be described in detail here. Then the second connecting frame 3 is connected with the first connecting frame 2.

[0051] As shown in Figure 7 and Figure 11 As shown, the top end of the first connecting frame 2 is fixedly connected with a second connecting block 6, the side end of the second connecting frame 3 away from the center framework 9 is fixedly connected with a first connecting block 5, the first connecting block 5 is provided with a mounting groove 8 matched with the shape of the second connecting block 6, the second connecting block 6 is provided with a slot 7, the two sides of the first connecting block 5 are provided with grooves, the side of the second connecting block 6 close to the first connecting block 5 is fixedly connected with a protrusion matched with the shape of the groove, by aligning the second connecting block 6 with the mounting groove 8, then pressing the second connecting block 6 into the mounting groove 8, the slot 7 provided on the second connecting block 6 is used to enhance the end deformation ability of the second connecting block 6 when the second connecting block 6 is pressed, so that the second connecting block 6 can be more quickly inserted and fixed into the mounting groove 8, the second connecting block 6 is completely inserted into the mounting groove 8, and the protrusion on the second connecting block 6 is tightly connected with the groove on the first connecting block 5, the first connecting block 5 and the second connecting block 6 are quickly and stably fixed and connected, and then the first connecting frame 2 and the second connecting frame 3 are connected together, and the above operation is repeated to complete the installation of the two second connecting frames 3 and the two first connecting frames 2 respectively.

[0052] The installation adjusting mechanism can quickly install a needle placement sleeve 13 on the center frame 9, and the cooperation of various components in the installation adjusting mechanism can also flexibly adjust the position and angle of the needle placement sleeve 13. After installing a needle placement sleeve 13, the installation position and angle of another needle placement sleeve 13 are measured by using the infrared emitter body 22 installed on the needle placement sleeve 13, and after the measurement is completed, another needle placement sleeve 13 is quickly and stably installed on the center frame 9 by using the installation adjusting structure, so that the device can be well used for bilateral symmetrical pedicle screw placement, and the stability during the placement process is ensured. The risk of surgical risk caused by angle deviation during the operation is effectively reduced by the auxiliary positioning of the device, and the cooperation between the structures also effectively improves the work efficiency of the operation, and the structure is simple and convenient to use. The specific structure and working principle of the above-mentioned installation adjusting mechanism are described in detail below.

[0053] As shown in Figure 12 The clamping and fixing mechanism 1 is provided with two clamping openings 101, one clamping opening 101 is arranged at the bottom of the clamping and fixing mechanism 1, and the other clamping opening 101 is arranged at the top of the clamping and fixing mechanism 1. The clamping opening 101 arranged at the top is a typical vice structure, and the clamping opening 101 arranged at the bottom is clamped by a bolt 103. Two opposite clamping pieces 102 are arranged at one clamping opening 101 at the top, and a anti-slip groove 29 is arranged on the side of the clamping piece 102 close to the first connecting frame 2. Anti-slip protrusions 30 are arranged on both sides of the bottom of the first connecting frame 2 and are matched with the shape of the anti-slip groove 29. By aligning one clamping opening 101 at the bottom of the clamping and fixing mechanism 1 with the edge of the side of the operating bed, and then adjusting the size of the clamping opening 101 to install the clamping and fixing mechanism 1 on the side of the operating bed, the bottom of the first connecting frame 2 is placed in one clamping opening 101 at the top of the clamping and fixing mechanism 1. A threaded hole is arranged on one clamping piece 102, and a insertion hole is arranged on the other clamping piece 102. A threaded adjusting rod is inserted into the threaded hole and the insertion hole. A limiting groove is arranged at the bottom of the clamping piece 102, and a limiting piece matched with the shape of the limiting groove is arranged at the top of the clamping and fixing mechanism 1. By rotating the threaded adjusting rod, one clamping piece 102 is slid along the limiting piece under the action of the thread, so as to adjust the distance between the two clamping pieces 102. The bottom of the first connecting frame 2 is clamped, and the first connecting frame 2 is further limited and fixed by the anti-slip groove 29 and the anti-slip protrusion 30, so that the clamping and fixing effect of the clamping and fixing mechanism 1 on the first connecting frame 2 is better, and the first connecting frame 2 plays a stable supporting role during use, thereby facilitating the operation of the pedicle screw placement during the operation, and the top of the second connecting frame 3 and the center frame 9 form an arch structure as shown in Figure 1 The arch structure formed by the top of the second connecting frame 3 and the center frame 9 further improves the stability of the device, so that the force received by the device as a whole during the placement of the pedicle screw is more uniform, thereby preventing the device from shaking and ensuring the safe performance of the operation.

[0054] As shown in Figures 4 to 13 The installation adjusting mechanism comprises a rotating block 20 installed on the center framework 9, and a clamping piece 21 connected with the shape of the needle placing sleeve 13 is rotatably connected to the side of the rotating block 20 away from the center framework 9, and the clamping piece 21 embraces the needle placing sleeve 13. Figure 14 As shown in The side of the clamping piece 21 close to the rotating block 20 is fixedly connected with a rotating block 211, the rotating block 211 is a rotary body, the side of the rotating block 20 close to the clamping piece 21 is provided with a rotating groove 201 matched with the shape of the rotating block 211, and the rotating groove 201 is a rotary groove. The side of the rotating block 20 close to the center framework 9 is provided with a limiting block 24 at equal intervals, and the center framework 9 is provided with a limiting groove 10 matched with the shape of the limiting block 24 at equal intervals. The bottom of the center framework 9 is provided with an insertion slot 11, and a screw 18 is inserted in the insertion slot 11, and a screw sleeve 19 is sleeved on the screw 18.

[0055] The third light weight groove 14 is provided on the needle placing sleeve 13 at equal intervals, the rotating block 20 and the limiting block 24 are integrally formed, the limiting block 24 is sawtooth-shaped, the cross section of the rotating block 20 is square, the clamping piece 21 is made of plastic material, the inside of the clamping piece 21 is rough, the clamping piece 21 is pressed towards the needle placing sleeve 13, the clamping piece 21 is deformed under the influence of the pressing force, the clamping piece 21 is sleeved and installed on the needle placing sleeve 13, the position of the clamping piece 21 sleeved on the needle placing sleeve 13 can be used to adjust the depth of the needle placing sleeve 13 placed under the skin of the patient, so that the structure can be used for auxiliary operation of placing nails at different depths.

[0056] After the clamping piece 21 and the needle placing sleeve 13 are connected, the position of the pedicle screw on one side of the pedicle is determined, one screw 18 is inserted through the third light weight groove 14, then the screw 18 is inserted into the corresponding insertion slot 11 of the center framework 9, then the screw sleeve 19 is sleeved on the screw 18, at this time the screw sleeve 19 is not completely tightened, the needle placing sleeve 13 is adjusted by rotating according to the required angle, then the rotating block 20 rotatably connected to the clamping piece 21 is aligned with the limiting groove 10, then the needle placing sleeve 13 is pressed towards the center framework 9, so that the limiting block 24 on the rotating block 20 is clamped in the limiting groove 10, thereby limiting the top of the needle placing sleeve 13, and the two positions are used to make the needle placing sleeve 13 stably at the best nail placing angle.

[0057] After the connecting of the limiting groove 10 and the limiting block 24 is completed, the sleeve 19 on the screw 18 is rotated by hand, the sleeve 19 is completely fixed, so that the position of the needle setting sleeve 13 is completely fixed, then the installation position of the other needle setting sleeve 13 is measured by using the infrared emitter body 22 on the needle setting sleeve 13, so that the two needle setting sleeves 13 are symmetrical to the central axis of the central frame 9, after the measurement is completed, the installation operation of the needle setting sleeve 13 is repeated to install the other needle setting sleeve 13, the structure is simple and flexible, the needle setting operation of the bilateral symmetry is assisted by using the needle setting sleeve 13, not only the stability of the needle setting is improved, and the angle and position of the needle setting can be quickly determined, so that the operation time is reduced, the amount of bleeding in the operation is controlled to a certain extent, thereby effectively reducing the risk of operation, the cooperation between the structures makes the practicability of the device better, and the structure of the device is simple, the cost is relatively low, and the device is convenient to popularize and use.

[0058] The cross section of the central frame 9 is arc-shaped, so that the top of the central frame 9 and the two needle setting sleeves 13 form an arch-shaped structure, and the stability of the structure is assisted and strengthened by using the bottom of the central frame 9, and the top and bottom of the central frame 9 are used to fix two points of the needle setting sleeve 13 respectively, so that the stability of the installation of the needle setting sleeve 13 is enhanced. The two second connecting frames 3 and the central frame 9 are integrally formed, and the structure of the integral formation is better in stability.

[0059] The central frame 9 is made of stainless steel material, the strength of the stainless steel material is high, the corrosion resistance is good, and the stability of the device is further enhanced. The second lightweight groove 12 is equidistantly arranged on the top of the central frame 9, which can effectively reduce the mass of the central frame 9 and reduce the production material consumption of the central frame 9.

[0060] The insertion groove 11 is three groups of transverse equidistant arrangement on the central frame 9, which can make the installation position of the screw 18 more flexible by cooperating with the use of the third lightweight groove 14, so that the installation distance and angle of the two needle setting sleeves 13 can be better adjusted and controlled.

[0061] The two limiting pieces 23 are oppositely arranged on the top of the central frame 9, which can protect the edge of the top of the central frame 9, prevent the medical staff from scratching the gloves by accidentally touching the edge of the central frame 9 during operation, and the limiting piece 23 close to the needle setting sleeve 13 also assists the installation of the needle setting sleeve 13.

[0062] The top of the rotating block 20 is fixedly connected with an end block 25 matched with the shape of the limiting sheet 23, the side of the limiting sheet 23 away from the center framework 9 is provided with a limiting part 27, the side of the end block 25 close to the limiting sheet 23 is provided with a buffer cavity 26, the limiting sheet 23 and the end block 25 are made of plastic material, the end block 25 is extruded into the limiting sheet 23 in the process of being clamped and connected with the limiting block 24 and the limiting groove 10, the buffer cavity 26 in the end block 25 is deformed when the end block 25 is extruded, so that the end block 25 can be more quickly installed into the limiting sheet 23, and the limiting part 27 is used for limiting the end block 25, so that the rotating block 20 is more stably connected with the center framework 9, thereby ensuring that the one positioning point of the needle placing sleeve 13 close to the clamping sheet 21 does not deviate in the whole operation process, and the other positioning point of the needle placing sleeve 13 does not deviate in angle, and the cooperation between the structures makes the device more stable in use.

[0063] As shown in Figures 4 to 10 The needle placing sleeve 13 is marked with a scale, so that the depth of the needle placing sleeve can be recorded and the contralateral reference is facilitated. The top of the needle placing sleeve 13 is fixedly connected with a guide end sheet 15, the fourth light weight groove 16 is annularly and equidistantly arranged on the guide end sheet 15, the top of the guide end sheet 15 is provided with a guide part 17, the nail is guided into the needle placing sleeve 13 by the guide end sheet 15, so that the nail can quickly enter the channel of the needle placing sleeve 13 along the guide part 17, and the operation of placing the nail is assisted by the needle placing sleeve 13. The fourth light weight groove 16 can reduce the weight of the guide end sheet 15, the outer diameter of the screw 18 is equal to the width of the third light weight groove 14, the screw 18 can be stably installed in the third light weight groove 14 through the above size design, the inner diameter of the screw sleeve 19 is equal to the outer diameter of the screw 18 and the screw sleeve 19 is stably sleeved and installed on the screw 18. The outer wall of the screw sleeve 19 is annularly and equidistantly provided with anti-skid lines with a depth of two millimeters, so as to rotate the screw sleeve 19, thereby adjusting the tightness of the screw 18, and the cooperation between the structures further makes the use effect of the device better.

[0064] The working principle of the technical scheme provided by the application is as follows:

[0065] In use, the clamping fixing mechanism 1 is installed on the side edge of the operating bed by aligning one of the clamping openings 101 at the bottom of the clamping fixing mechanism 1 with the side edge of the operating bed, and then adjusting the size of the clamping opening 101. The bottom of the first connecting frame 2 is clamped by placing it in one of the clamping openings 101 at the top of the clamping fixing mechanism 1, and then adjusting the distance between the two clamping pieces 102. Further positioning and fixing of the first connecting frame 2 is achieved by using the anti-skid grooves 29 and anti-skid protrusions 30. After the two clamping fixing mechanisms 1 and the first connecting frame 2 are installed, the second connecting block 6 is aligned with the installation slot 8, and then the second connecting block 6 is pressed into the installation slot 8. The slotted opening 7 on the second connecting block 6 enhances the end shell deformation capability when it is pressed, so that the second connecting block 6 can be more quickly inserted and fixed into the installation slot 8. The second connecting block 6 is completely inserted into the installation slot 8, and the protrusions on the second connecting block 6 are tightly connected with the grooves on the first connecting block 5. The first connecting block 5 and the second connecting block 6 are quickly and stably fixed and connected, and then the first connecting frame 2 and the second connecting frame 3 are connected together. After repeating the above operations to install the two second connecting frames 3 with the two first connecting frames 2, the central framework 9 on the second connecting frame 3 is also fixed.

[0066] Then press the clamping piece 21 towards the needle placement sleeve 13, and the clamping piece 21 deforms under the pressure. The clamping piece 21 is installed on the needle placement sleeve 13. The position of the clamping piece 21 installed on the needle placement sleeve 13 can be used to adjust the depth of the needle placement sleeve 13 placed under the patient's skin, so that the structure can be used for assisted operation of placing nails at different depths. After the connection of the clamping piece 21 and the needle placement sleeve 13 is completed, the position of the pedicle screw is determined on one side of the vertebral arch. Then, a screw 18 is inserted into the corresponding insertion slot 11 on the central framework 9 by passing through the third lightened groove 14. Then, a screw sleeve 19 is installed on the screw 18. At this time, the screw sleeve 19 is not completely tightened. The angle of the needle placement sleeve 13 is adjusted according to the required angle. Then, the rotating block 20 connected to the clamping piece 21 is aligned with the limiting groove 10. Then, the needle placement sleeve 13 is pressed towards the central framework 9, and the limiting block 24 on the rotating block 20 is clamped in the limiting groove 10, so as to limit the top of the needle placement sleeve 13. In the process of clamping and connecting the limiting block 24 and the limiting groove 10, the end block 25 is extruded into the limiting piece 23. When the end block 25 is extruded, the buffer cavity 26 inside the end block 25 deforms, so that the end block 25 can be more quickly installed into the limiting piece 23, and the limiting part 27 limits the end block 25 well, so that the rotating block 20 is more stably connected with the central framework 9. Then, the needle placement sleeve 13 is stably placed at the best nail placement angle by using two positions. After the connection of the limiting groove 10 and the limiting block 24 is completed, the screw sleeve 19 on the screw 18 is rotated by hand to completely fix the screw sleeve 19, so that the position of the needle placement sleeve 13 is completely fixed.

[0067] Then the installation position of another needle setting sleeve 13 is measured by the infrared emitter body 22 on the needle setting sleeve 13, after the measurement is completed, the installation operation of the needle setting sleeve 13 is repeated to install another needle setting sleeve 13, after the installation and fixation of the two needle setting sleeves 13 are completed, the nails entering the needle setting sleeve 13 are guided by the guide end piece 15, so that the nails can enter the channel of the needle setting sleeve 13 along the guide part 17 quickly, the accuracy of the nail setting position and angle is better by using the needle setting sleeve 13 to assist the nail setting operation, when the nail setting operation is assisted by the needle setting sleeve 13, the central framework 9 is first stressed, and then the force is dispersed to the bottom and both sides of the central framework 9, so that the overall stress of the device is more uniform, so that the stability of the nail setting operation is better, and the cooperation between the structures reduces the operation time to a certain extent, and the amount of bleeding during the operation is controlled to a certain extent.

[0068] The two second connecting frames 3 and the central framework 9 are integrally formed, the structure of integral formation is better in stability, the central framework 9 is formed of stainless steel material, the stainless steel material is high in strength and good in corrosion resistance, and the stability of the device is further enhanced, the second lightweight groove 12 is equidistantly arranged at the top of the central framework 9, the mass of the central framework 9 can be effectively reduced, and the production material consumption of the central framework 9 is reduced, the three groups of insertion grooves 11 are transversely and equidistantly arranged on the central framework 9, the use of the third lightweight groove 14 can make the installation position of the screw 18 more flexible, so that the installation distance and angle of the two needle setting sleeves 13 can be better adjusted and controlled, the two limiting pieces 23 are oppositely arranged at the top of the central framework 9, the edges of the top of the central framework 9 can be protected, the gloves of medical staff are prevented from being scratched by the edges of the central framework 9 during operation, the mass of the guide end piece 15 is reduced by the fourth lightweight groove 16, the outer diameter of the screw 18 is equal to the width of the third lightweight groove 14, the screw 18 can be stably installed in the third lightweight groove 14, the inner diameter of the screw sleeve 19 is equal to the outer diameter of the screw 18, and the screw sleeve 19 is stably and sleevedly installed on the screw 18, the anti-skid lines with a depth of two millimeters are equidistantly arranged on the outer wall of the screw sleeve 19, the screw sleeve 19 can be rotated, so that the tightness of the screw 18 is adjusted, and the cooperation between the structures further makes the use effect of the device better.

[0069] The present application covers any substitutions, modifications, equivalent methods and schemes made on the essence and scope of the present application. In order for the public to have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0070] The above merely describes the preferred embodiments of the present application, and it should be pointed out that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. An adjustable bilaterally symmetrical pedicle screw placement assisting device, characterized in that: It includes a clamping and fixing mechanism, a first connecting frame is installed on the top of the clamping and fixing mechanism, a second connecting frame is installed on the side of the first connecting frame away from the clamping and fixing mechanism, and a first lightweight slot is equidistantly provided on the second connecting frame. There are two clamping and fixing mechanisms, two first connecting frames, and two second connecting frames. A central frame is installed between the two second connecting frames, two needle insertion sleeves are installed on one side of the central frame, and an infrared emitter body is installed on one of the needle insertion sleeves; An installation and adjustment mechanism, the installation and adjustment mechanism is used for installing and adjusting the needle insertion sleeve, and the installation and adjustment mechanism is connected to the central frame; The installation and adjustment mechanism includes a rotating block installed on the central frame, the rotating block is rotatably connected to a clip adapted to the shape of the needle sleeve on a side away from the central frame, a limit block is equidistantly provided on a side of the rotating block close to the central frame, and limit grooves adapted to the shape of the limit block are equidistantly provided on the central frame, slots are equidistantly provided at the bottom of the central frame, screws are inserted into the slots, and screw sleeves are sleeved on the screws, and a third lightweight slot is equidistantly provided in an annular shape on the needle sleeve; The cross section of the central skeleton is arch-shaped.

2. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The clamping and fixing mechanism is provided with two clamping openings, one of which is arranged at the bottom of the clamping and fixing mechanism, and the other clamping opening is arranged at the top of the clamping and fixing mechanism. Two clamping plates are provided at one of the clamping openings at the top, and an anti-slip groove is provided on the side of the clamping plate close to the first connecting frame. Anti-slip protrusions that are adapted to the shape of the anti-slip groove are provided on both sides of the bottom of the first connecting frame.

3. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The top end of the first connecting frame is fixedly connected to the second connecting block, and the end of the second connecting frame on the side away from the central skeleton is fixedly connected to the first connecting block. The first connecting block is provided with a mounting groove adapted to the shape of the second connecting block, the second connecting block is provided with a slot, and grooves are provided on both sides of the first connecting block. The second connecting block is fixedly connected to a protrusion adapted to the shape of the groove on the side close to the first connecting block.

4. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The two second connecting frames and the central frame are integrally formed, and the central frame is made of stainless steel.

5. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The top of the central frame is provided with second lightweight slots at equal intervals, and the slots are arranged in three groups at equal intervals laterally on the central frame.

6. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: Two limiting plates are provided on opposite sides of the top of the central frame, and the top of the rotating block is fixedly connected with an end block whose shape matches that of the limiting plates.

7. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 6, characterized in that: A limiting portion is provided on a side of the limiting piece away from the central frame, and a buffer cavity is provided on a side of the end block close to the limiting piece. The limiting piece and the end block are made of plastic material.

8. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The top of the needle placement sleeve is fixedly connected to a guide end piece, a fourth lightweight groove is annularly and equidistantly provided on the guide end piece, and a guide portion is provided on the top of the guide end piece.

9. The adjustable bilaterally symmetrical pedicle screw placement auxiliary device according to claim 1, characterized in that: The outer diameter of the screw is equal to the width of the third lightweight groove, the inner diameter of the screw sleeve is equal to the outer diameter of the screw, and the outer wall of the screw sleeve is annularly and equidistantly provided with anti-slip grooves with a depth of two millimeters.

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