Hallux valgus osteotomy tool

Abstract

The invention discloses a hallux valgus osteotomy tool, and belongs to the technical field of hallux valgus surgical instruments.The tool comprises a positioning needle, a connecting transverse plate, an angle positioning disc, a connecting vertical plate, a guide cylinder and a positioning assembly. Integrated printing is carried out through the adjusting vertical plate and the guide cylinder according to the actual conditions of patients, personalized customization of different patients is achieved, through arrangement of the positioning assembly, the position of the adjusting vertical plate on the connecting vertical plate can be adjusted in an operation after printing is completed, and through arrangement of an angle pointer and an angle positioning disc, the angle of the patient can be adjusted. According to the surgical instrument, the angle of the connecting vertical plate relative to the connecting transverse plate can be more accurately adjusted by a doctor in the surgical process, so that the surgical instrument is simpler to use, and the connecting vertical plate can rotate along the circle center of an angle positioning disc by unscrewing an arranged fastening bolt; and the connecting vertical plate can be fixed at the adjusted position by tightening the fastening bolt.

Description

Technical Field

[0001] The invention belongs to the technical field of hallux valgus surgical instruments, and in particular relates to a hallux valgus osteotomy tool. Background Art

[0002] Hallux valgus is a common foot deformity. It refers to a foot disease in which the big toe tilts outward more than the physiological 15 degrees, which will affect the normal supporting walking function of the foot. Currently, the most common surgery is minimally invasive hallux valgus surgery, which corrects the valgus angle by cutting the metatarsal bones.

[0003] Hallux valgus is a common foot deformity, which usually needs to be corrected by surgery. This hallux valgus surgery requires specific positioning tools to assist the surgery to achieve precise positioning, osteotomy, and screw guidance. There are currently some positioning tools for this surgery on the market. For example, Chinese utility model patent CN218186919U discloses a guide for hallux valgus surgery, including a positioning needle, a guide piece, a guide needle sleeve and a first fixing component; the positioning needle and the guide needle sleeve are respectively connected to the guide piece, and the guide needle sleeve is used to guide the insertion and withdrawal of the guide needle; the guide piece is provided with an arc-shaped guide rail, and the guide needle sleeve can slide relative to the guide piece along an arc-shaped route under the guidance of the guide rail to cross-insert the guide needle, and the first fixing component is used to fix the guide needle sleeve on the guide piece. The guide for hallux valgus surgery provided by the utility model has a guiding effect on the guide needle, which can ensure that the guide needle and the positioning needle are located in the same plane.

[0004] Although the above-mentioned prior art can guide the guide needle, the adjustable range of the angle between the guide needle sleeve and the positioning needle is small. Therefore, when actually designing the patient's surgery, once the adjustment range cannot meet the patient's condition, the tool cannot be used or the effect of the tool is reduced. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problem that the adjustable range of the angle between the guide needle sleeve and the positioning needle is small as proposed in the above-mentioned background technology, and further when actually designing the patient's surgery, once the adjustment range cannot meet the patient's condition, the tool cannot be used or the effect of the tool is reduced, the present invention adopts the following technical solution.

[0007] A hallux valgus osteotomy tool comprises a positioning pin, a positioning slot is arranged on the positioning pin, the outer wall of the positioning pin is rotatably connected with a connecting horizontal plate, a side of the connecting horizontal plate away from the positioning pin is fixedly connected with an angle positioning disk, the back of the angle positioning disk is rotatably connected with a connecting vertical plate, an outer wall of the angle positioning disk is provided with an angle pointer, the angle pointer passes through the angle positioning disk and is detachably connected to the connecting vertical plate, the connecting vertical plate rotates to drive the angle pointer to rotate, the outer wall of the connecting vertical plate is slidably connected with an adjusting vertical plate, a plurality of guide cylinders are fixedly connected to the adjusting vertical plate, the adjusting vertical plate and the guide cylinder are integrally formed by 3D printing, a positioning assembly is plugged into the adjusting vertical plate, the positioning assembly fixes the adjusting vertical plate to the outer wall of the connecting vertical plate, a screw passes through the inside of the guide cylinder, and the guide cylinder is opposite to the positioning slot.

[0008] Preferably, a supporting vertical plate is installed on the outer wall of the connecting horizontal plate, a threaded column is threadedly connected to the supporting vertical plate, the internal rotation of the adjusting screw cap is connected to a guide tube, a screw passes through the inside of the guide tube, and fastening components are installed at both ends of the guide tube to fix the screw, a moving component is installed on the connecting horizontal plate, the moving component enables the supporting vertical plate to move on the outer wall of the connecting horizontal plate, and a length measuring component is installed on the supporting vertical plate, and the length measuring component detects the protruding length of the screw inside the guide tube.

[0009] Preferably, the outer wall of the connecting vertical plate is provided with a plurality of through holes, and the adjusting vertical plate is provided with a sliding groove. The adjusting vertical plate is sleeved on the outer wall of the connecting vertical plate through the sliding groove. The positioning component passes through the adjusting vertical plate and the through holes to fix the adjusting vertical plate on the surface of the connecting vertical plate. The positioning component is provided with a stabilizing component, which stabilizes the adjusting vertical plate on the outer wall of the connecting vertical plate.

[0010] Preferably, the positioning assembly includes a first pin and a second pin, the insertion end of the first pin is concave, the plug-in portion on the second pin is inserted into the concave portion of the first pin, an internal thread groove is provided at the end of the insertion end of the first pin, and a threaded boss is fixedly connected to the outer wall of the second pin near the plug-in portion, and the threaded boss is threadedly connected to the internal thread groove.

[0011] Preferably, a connecting sleeve is fixedly connected to the top of the connecting vertical plate, a fastening bolt passes through an outer wall of one side of the connecting sleeve, and the fastening bolt is threadedly connected to the angle positioning plate.

[0012] Preferably, the fastening assembly includes an external thread, a fastening nut and a through groove, the two ends of the threaded column are fixedly connected with an adjusting screw cap, the internal rotation of the adjusting screw cap is connected with a guide tube, the two ends of the guide tube pass through the adjusting screw cap, the outer walls of the two ends of the guide tube passing through the adjusting screw cap are provided with external threads, the guide tube is provided with a plurality of through grooves at the external thread, the guide tube at the external thread is made of elastic material and is expanded outward under normal conditions, the inner wall of the guide tube at the external threads on both sides is provided with rubber pads, the outer walls of the external threads on both sides are threadedly connected with fastening nuts, the screws are inserted into the interior of the guide tube, and the fastening nut is rotated so that the guide tube at the external thread contracts inward to clamp the outer wall of the screw.

[0013] Preferably, the moving component includes a sliding groove and an adjusting cap, a sliding groove is provided at the upper end of the connecting horizontal plate, an adjusting screw is rotatably connected inside the sliding groove, one end of the adjusting screw close to the angle positioning plate passes through the connecting horizontal plate and is fixedly connected to the adjusting cap, a first through groove is provided on the outer wall of the supporting vertical plate, the first through groove is sleeved on the outer wall of the connecting horizontal plate, a sliding block is fixedly connected to the inner top of the first through groove, the sliding block is slidably connected to the inside of the sliding groove, and the sliding block is threadedly connected to the adjusting screw.

[0014] Preferably, the length detection assembly includes a sliding rod, a positioning bolt, an extension rod, a scale mark and an abutment plate. The outer wall of the supporting vertical plate is provided with a second through groove consistent with the direction of the threaded column. The sliding rod is slidably connected inside the second through groove. The end of the sliding rod close to the angle positioning plate is detachably connected to the limiting plate. The end of the sliding rod away from the limiting plate is telescopically connected to the extension rod. The outer wall of the extension rod is provided with a scale mark. The end of the extension rod is rotatably connected to the abutment plate. The outer wall of the supporting vertical plate is threadedly connected to the positioning bolt, and the threaded end of the positioning bolt contacts the outer wall of the sliding rod.

[0015] Preferably, the outer wall of the extension rod inserted into the interior of the sliding rod is provided with a return spring, and the return spring is engaged with the interior of the sliding rod.

[0016] Preferably, the stabilizing component includes an expansion airbag, a connecting hole and a sealing block. A plurality of expansion airbags are embedded and installed in the outer wall of the first pin insertion end. A connecting hole is provided in the recessed part of the first pin insertion end. The connecting hole is connected to the air inlet end of each expansion airbag. A sealing block is provided at the end of the plug-in part.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The device is positioned by inserting the positioning needle into the patient's metatarsal bone. The vertical plate and the guide cylinder are adjusted and printed in one piece according to the patient's actual situation, thereby realizing personalized customization for different patients. Through the setting of the positioning component, the position of the adjusting vertical plate on the connecting vertical plate can be adjusted during surgery after printing. Through the setting of the angle pointer and the angle positioning plate, it is convenient for the doctor to more accurately adjust the angle of the connecting vertical plate relative to the connecting horizontal plate during the operation, making the tool easier to use.

[0018] 2. By loosening the set fastening bolts, the connecting vertical plate can be rotated along the center of the angle positioning plate, and by tightening the fastening bolts, the connecting vertical plate can be fixed in the adjusted position.

[0019] 3. The screw passing through the inside of the threaded column is inserted into the cut metatarsal bone, and the threaded column is rotated to move the metatarsal bone horizontally. After the metatarsal bone is osteotomized, the metatarsal bone is moved to the planned path to ensure the accuracy of the surgical path.

[0020] 4. By rotating the guide tube and the threaded column in the fastening assembly, the screw can be inserted into the patient's metatarsal bone and the adjusting screw cap can be rotated to prevent the screw from rotating. The installation of the screw is more convenient by tightening the fastening nut, and the screw can be clamped more tightly by setting the rubber pad.

[0021] 5. By rotating the adjusting cap in the movable assembly, the adjusting screw is rotated, so that the supporting vertical plate can move laterally on the connecting horizontal plate, and the lateral movement distance of the screw inside the threaded column can be increased in coordination with the rotation of the threaded column, so that the planned path of metatarsal movement can be longer.

[0022] 6. By loosening the positioning bolt in the length detection assembly, the sliding rod can be slid to adjust the lateral position so that the end of the sliding rod close to the positioning pin is parallel to the adjusting screw cap close to the positioning pin. Pull out the extension rod so that the abutment plate contacts the end of the screw inside the threaded column close to the positioning pin. At this time, the length of the screw passing through the adjusting screw cap end close to the positioning pin can be detected by the scale mark on the scale mark, so as to control the extension length of the screw inside the threaded column to ensure that the extension length of the screw inside the threaded column is inserted into the metatarsal. After adjusting the length, rotate the abutment plate to keep it away from the end of the screw and retract the extension rod.

[0023] 7. By setting the reset spring, the extension rod has the force to retract into the inside of the sliding rod, so that after the length measurement is completed, the abutment plate is rotated, and the extension rod can be automatically retracted by the resilience of the reset spring.

[0024] 8. When the plug-in portion of the positioning assembly is inserted into the inner recess of the first pin insertion end, air is pushed into the interior of each expansion airbag through the connecting hole to expand it and fill the inner wall of the through hole, so that the adjustment vertical plate will not shake on the surface of the connecting vertical plate, thereby making the positioning more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a hallux valgus osteotomy tool in the present invention; Figure 2 It is a schematic diagram of the back structure of the hallux valgus osteotomy tool of the present invention; Figure 3 It is a schematic diagram of the structure of the threaded column in the present invention; Figure 4 It is a schematic diagram of the structure in which the supporting vertical plate moves on the connecting horizontal plate in the present invention; Figure 5 It is a schematic diagram of the structure of the length measuring device in the present invention; Figure 6 It is a schematic diagram of the structure of the length measurement component in the present invention; Figure 7 It is a schematic diagram of the sliding connection structure between the adjusting vertical plate and the connecting vertical plate in the present invention; Figure 8 It is a schematic diagram of the structure of the first latch pin in the positioning assembly of the present invention; Fig. 9 It is a schematic diagram of the second pin structure in the positioning assembly of the present invention.

[0026] The corresponding relationship between the illustrations and component names in the figure is as follows: 100, positioning pin; 101, positioning slot; 102, connecting horizontal plate; 103, angle positioning plate; 104, angle pointer; 105, fastening bolt; 106, sliding slot; 107, adjusting screw; 108. Adjustment cap; 200, supporting vertical plate; 201, threaded column; 202, adjusting screw cap; 203, external thread; 204, fastening nut; 205, sliding block; 206, first through groove; 207, second through groove; 208, sliding rod; 209, limiting plate; 210, return spring; 211, extension rod; 212, scale mark; 213, abutment plate; 214, positioning bolt; 300, connecting vertical plate; 301, adjusting vertical plate; 302, positioning assembly; 303, guide cylinder; 304, through hole; 305, slide groove; 306, connecting sleeve; 307, first latch pin; 308, expansion airbag; 309, internal thread groove; 310, communication hole; 311, second plug pin; 312, threaded boss; 313, plug-in portion; 314, sealing block. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] like Figure 1As shown, it is a schematic diagram of the structure of a hallux valgus osteotomy tool in a preferred embodiment of the present invention. The hallux valgus osteotomy tool in this embodiment includes a positioning pin 100, a positioning slot 101 is provided on the positioning pin 100, the outer wall of the positioning pin 100 is rotatably connected to a connecting horizontal plate 102, and the connecting horizontal plate 102 is fixedly connected to an angle positioning disk 103 on a side away from the positioning pin 100, the back of the angle positioning disk 103 is threadedly connected to a fastening bolt 105, and the outer wall of the fastening bolt 105 is sleeved with a connecting vertical plate 300, and the outer wall of the angle positioning disk 103 is provided with an angle pointer 104, and the angle pointer 104 passes through the angle positioning disk 103 and is detachably connected to the connecting vertical plate 300, and the connecting vertical plate 300 rotates to drive the angle pointer 104 to rotate, and the outer wall of the connecting vertical plate 300 is slidably connected to an adjusting vertical plate 301, and a plurality of inclined guide cylinders 303 are fixedly connected to the adjusting vertical plate 301. The vertical plate 301 and the guide cylinder 303 are integrally formed, and a positioning component 302 is inserted into the adjusting vertical plate 301. The positioning component 302 fixes the adjusting vertical plate 301 to the outer wall of the connecting vertical plate 300. The screw passes through the interior of the guide cylinder 303, and the guide cylinder 303 is opposite to the positioning groove 101. In this embodiment, after the metatarsal osteotomy, the positioning needle 100 is inserted into the patient from the osteotomy cross section to position the device. The adjusting vertical plate 301 and the guide cylinder 303 are printed as a whole according to the actual situation of the patient, thereby realizing personalized customization for different patients. Through the setting of the positioning component 302, the position of the adjusting vertical plate 301 on the connecting vertical plate 300 can be adjusted during surgery. Through the setting of the angle pointer 104 and the angle positioning disk 103, it is convenient for the doctor to more accurately adjust the angle of the connecting vertical plate 300 relative to the connecting horizontal plate 102 during the operation, making the tool easier to use.

[0031] like Figure 2 As shown, it is a schematic diagram of the back structure of the hallux valgus osteotomy tool in this embodiment, the top of the connecting vertical plate 300 is fixedly connected with a connecting sleeve 306, and the outer wall of one side of the connecting sleeve 306 passes through the fastening bolt 105, and the fastening bolt 105 is threadedly connected to the angle positioning disk 103. In this embodiment, by loosening the fastening bolt 105, the connecting vertical plate 300 can be rotated along the center of the circle of the angle positioning disk 103, and by tightening the fastening bolt 105, the connecting vertical plate 300 can be fixed in the adjusted position.

[0032] like Figure 1 As shown, a supporting vertical plate 200 is installed on the outer wall of the connecting horizontal plate 102, and a threaded column 201 is threadedly connected to the supporting vertical plate 200, and a screw passes through the inside of the threaded column 201. In this embodiment, the screw passing through the inside of the threaded column 201 is inserted into the cut metatarsal, and the threaded column 201 is rotated to move horizontally, so as to move the metatarsal after osteotomy to the planned path, thereby ensuring the accuracy of the surgical path.

[0033] like Figure 3 As shown, it is a schematic diagram of the threaded column structure in this embodiment, the two ends of the threaded column 201 are fixedly connected with an adjusting screw cap 202, the inner rotation of the adjusting screw cap 202 is connected with a guide tube, the two ends of the guide tube pass through the adjusting screw cap 202, the outer walls of the two ends of the guide tube passing through the adjusting screw cap 202 are provided with external threads 203, the guide tube is provided with a plurality of through grooves at the external threads 203, the guide tube at the external threads 203 is made of elastic material, and is expanded outward under normal conditions, the inner walls of the external threads 203 on both sides of the guide tube are provided with rubber pads, and the two sides The outer wall of the external thread 203 is threadedly connected with a fastening nut 204, and the screw is inserted into the interior of the guide tube. The fastening nut 204 is rotated to cause the guide tube at the external thread 203 to shrink inward to clamp the outer wall of the screw. In this embodiment, the screw is inserted into the severed metatarsal, and the guide tube is rotatably connected to the threaded column 201, so that after the screw is inserted into the severed metatarsal, the adjusting screw cap 202 is rotated to prevent the screw from rotating. The tightening of the fastening nut 204 makes the installation of the screw more convenient, and the setting of the rubber pad can make the screw clamped more tightly.

[0034] It is worth noting that the above-mentioned external thread 203, fastening nut 204 and through groove are the fastening components in this embodiment. The fastening components include but are not limited to the external thread 203, fastening nut 204 and through groove. As long as it is a component that can fix the screw inside the guide tube, it can be applied to this embodiment.

[0035] like Figure 4 As shown, it is a schematic diagram of the structure of the support vertical plate moving on the connecting horizontal plate in this embodiment. A sliding groove 106 is provided at the upper end of the connecting horizontal plate 102. An adjusting screw 107 is rotatably connected inside the sliding groove 106. The end of the adjusting screw 107 close to the angle positioning disk 103 passes through the connecting horizontal plate 102 and is fixedly connected with an adjusting cap 108. The outer wall of the support vertical plate 200 is provided with a first through groove 206. The first through groove 206 is sleeved on the outer wall of the connecting horizontal plate 102. A sliding block 205 is fixedly connected to the inner top of the first through groove 206. The sliding block 205 is slidably connected to the inside of the sliding groove 106. The sliding block 205 is threadedly connected to the adjusting screw 107. In this embodiment, the adjusting screw 107 is rotated by rotating the adjusting cap 108, so that the support vertical plate 200 can move laterally on the connecting horizontal plate 102, and then the lateral movement distance of the screw inside the threaded column 201 can be increased in coordination with the rotation of the threaded column 201, so that the planned path of metatarsal movement can be made longer.

[0036] It is worth noting that the above-mentioned sliding groove 106 and adjusting cap 108 are movable components in this embodiment, and the movable components include but are not limited to the sliding groove 106 and adjusting cap 108. As long as it is a component that can enable the supporting vertical plate 200 to move on the outer wall connected to the horizontal plate 102, it can be applied to this embodiment.

[0037] like Figure 4 as well as Figure 5 As shown, the outer wall of the support vertical plate 200 is provided with a second through groove 207 which is consistent with the direction of the threaded column 201, and a sliding rod 208 is slidably connected inside the second through groove 207. The end of the sliding rod 208 close to the angle positioning plate 103 is detachably connected to the limiting plate 209, and the end of the sliding rod 208 away from the limiting plate 209 is telescopically connected to an extension rod 211, and a scale mark 212 is provided on the outer wall of the extension rod 211. The end of the extension rod 211 is rotatably connected to an abutment plate 213, and the outer wall of the support vertical plate 200 is threadedly connected to a positioning bolt 214, and the threaded end of the positioning bolt 214 contacts the outer wall of the sliding rod 208. In this embodiment, the positioning bolt 214 can be loosened to make The sliding rod 208 is slid to adjust the lateral position so that the end of the sliding rod 208 close to the positioning pin 100 is parallel to the adjusting screw cap 202 close to the positioning pin 100, and the extension rod 211 is pulled out so that the abutment plate 213 contacts the end of the screw inside the threaded column 201 close to the positioning pin 100. At this time, the length of the screw passing through the end of the adjusting screw cap 202 close to the positioning pin 100 is detected by the scale mark on the scale mark 212, and then the extension length of the screw inside the threaded column 201 can be controlled to ensure that the extension length of the screw inside the threaded column 201 is inserted into the metatarsal. After adjusting the length, the abutment plate 213 is rotated to make it away from the end of the screw and retract the extension rod 211.

[0038] It is worth noting that the above-mentioned sliding rod 208, positioning bolt 214, extension rod 211, scale mark 212 and abutment plate 213 are the length detection components in this embodiment. The length detection components include but are not limited to the sliding rod 208, positioning bolt 214, extension rod 211, scale mark 212 and abutment plate 213. As long as it is a component that can detect the extension length of the screw inside the threaded column 201, it can be applied to this embodiment.

[0039] like Figure 6 As shown, it is a schematic diagram of the length measurement component structure in this embodiment. The outer wall of the extension rod 211 inserted into the sliding rod 208 is provided with a reset spring 210, and the reset spring 210 is clamped with the inside of the sliding rod 208. In this embodiment, through the setting of the reset spring 210, the extension rod 211 has a force to retract toward the inside of the sliding rod 208, so that after the length measurement is completed, the abutment plate 213 is rotated, and the extension rod 211 can be automatically retracted by the rebound force of the reset spring 210.

[0040] like Figure 7As shown, it is a schematic diagram of the sliding connection structure between the adjusting vertical plate and the connecting vertical plate in this embodiment, the outer wall of the connecting vertical plate 300 is provided with a plurality of through holes 304, and the adjusting vertical plate 301 is provided with a slide groove 305, the adjusting vertical plate 301 is sleeved on the outer wall of the connecting vertical plate 300 through the slide groove 305, the positioning component 302 passes through the adjusting vertical plate 301 and the through holes 304 to fix the adjusting vertical plate 301 on the surface of the connecting vertical plate 300, in this embodiment, the position of the adjusting vertical plate 301 on the connecting vertical plate 300 can be adjusted according to actual needs through the limit of the positioning component 302, and then the position of the guide cylinder 303 can be adjusted, which is convenient for fine-tuning up and down according to actual conditions during the operation.

[0041] like Figure 8 as well as Fig. 9 As shown, it is a schematic diagram of the positioning component structure in this embodiment, the positioning component 302 includes a first pin 307 and a second pin 311, the insertion end of the first pin 307 is concave, the plug-in portion 313 on the second pin 311 is inserted into the concave part of the first pin 307, the end of the insertion end of the first pin 307 is provided with an internal thread groove 309, the outer wall of the second pin 311 near the plug-in portion 313 is fixedly connected with a threaded boss 312, and the threaded boss 312 is threadedly connected to the internal thread groove 309. In this embodiment, the threaded connection between the second pin 311 and the first pin 307 can fix the adjustment vertical plate 301 on the outer wall of the connecting vertical plate 300 through the through hole 304.

[0042] like Figure 8 as well as Fig. 9 As shown, a plurality of expansion airbags 308 are embedded in the outer wall of the insertion end of the first pin 307, and a connecting hole 310 is provided at the recessed part of the insertion end of the first pin 307. The connecting hole 310 is connected to the air inlet end of each expansion airbag 308, and a sealing block 314 is provided at the end of the plug-in portion 313. In this embodiment, when the plug-in portion 313 is inserted into the recessed part of the insertion end of the first pin 307, air is pushed into the interior of each expansion airbag 308 through the connecting hole 310 to expand it and fill the inner wall of the through hole 304, so that the adjustment vertical plate 301 will not shake on the surface of the connecting vertical plate 300, thereby making the positioning more precise.

[0043] It is worth noting that the above-mentioned expansion airbag 308, connecting hole 310 and sealing block 314 are stabilizing components in this embodiment, and the stabilizing components include but are not limited to the expansion airbag 308, connecting hole 310 and sealing block 314. As long as the components can stabilize the outer wall of the connecting vertical plate 300 when adjusting the vertical plate 301, they can be applied to this embodiment.

[0044] In summary, the specific use of this embodiment is as follows: First, the patient's metatarsal is osteotomized, and the positioning pin 100 is inserted into the cross section of the patient's osteotomy for positioning, and the screw is inserted into the severed metatarsal. The guide tube is connected to the threaded column 201 by rotation, so that after the screw is inserted into the patient's metatarsal, the adjusting screw cap 202 is rotated to prevent the screw from rotating. The tightening of the fastening nut 204 makes the installation of the screw more convenient. The setting of the rubber pad can make the clamping of the screw tighter. The screw passing through the threaded column 201 is inserted into the severed metatarsal. The threaded column 201 is rotated to move horizontally. After the metatarsal osteotomy, the metatarsal is moved to the planned path to ensure the accuracy of the surgical path. The adjusting screw 107 is rotated by rotating the adjusting cap 108, so that the support vertical The plate 200 moves laterally on the connecting cross plate 102, and can cooperate with the rotation of the threaded column 201 to increase the lateral movement distance of the screw inside the threaded column 201, so that the planned path of metatarsal movement can be longer. By loosening the positioning bolt 214, the sliding rod 208 can slide to adjust the lateral position, so that the end of the sliding rod 208 close to the positioning pin 100 is parallel to the adjusting screw cap 202 close to the positioning pin 100. The extension rod 211 is pulled out to make the contact plate 213 contact the end of the screw inside the threaded column 201 close to the positioning pin 100. At this time, the scale mark on the scale mark 212 is used to detect the length of the screw passing through the end of the adjusting screw cap 202 close to the positioning pin 100, so that the thread The extended length of the screw inside the column 201 is measured to ensure that the extended length of the screw inside the threaded column 201 is inserted into the metatarsal. After adjusting the length, the abutment plate 213 is rotated to make it away from the end of the screw and retract the extended rod 211. Through the setting of the return spring 210, the extended rod 211 has the force to retract toward the inside of the sliding rod 208, so that after the length measurement is completed, the abutment plate 213 is rotated, and the extended rod 211 can be automatically retracted by the rebound force of the return spring 210. After the truncated metatarsal is corrected, the connecting vertical plate 300 can be rotated along the center of the circle of the angle positioning disk 103 by loosening the fastening bolt 105, and the connecting vertical plate 300 can be fixed in the adjusted position by tightening the fastening bolt 105. The vertical plate 301 and the guide cylinder 303 are printed as one piece according to the actual situation of the patient, realizing personalized customization for different patients. The threaded connection between the second pin 311 and the first pin 307 can fix the adjusting vertical plate 301 on the outer wall of the connecting vertical plate 300 through the through hole 304. When the plug-in portion 313 is inserted into the inner recess of the insertion end of the first pin 307, air is pushed through the connecting hole 310 to push the interior of each expansion airbag 308 to expand and fill the inner wall of the through hole 304, so that the adjusting vertical plate 301 will not shake on the surface of the connecting vertical plate 300, thereby making the positioning more accurate. The screw is inserted into the interior of the guide cylinder 303 and into the corrected metatarsal to fix the corrected metatarsal.

[0045] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A hallux valgus osteotomy tool, comprising a positioning pin (100), the positioning pin (100) being provided with a positioning groove (101), the outer wall of the positioning pin (100) being rotatably connected to a connecting transverse plate (102), characterized in that: An angle positioning disk (103) is fixedly connected to a side of the connecting horizontal plate (102) away from the positioning pin (100); the back of the angle positioning disk (103) is rotatably connected to the connecting vertical plate (300); an angle pointer (104) is provided on the outer wall of the angle positioning disk (103); the angle pointer (104) passes through the angle positioning disk (103) and is detachably connected to the connecting vertical plate (300); the connecting vertical plate (300) rotates to drive the angle pointer (104) to rotate; The outer wall is slidably connected to an adjusting vertical plate (301), a plurality of guide cylinders (303) are fixedly connected to the adjusting vertical plate (301), the adjusting vertical plate (301) and the guide cylinders (303) are integrally formed by 3D printing, a positioning assembly (302) is plugged into the adjusting vertical plate (301), the positioning assembly (302) fixes the adjusting vertical plate (301) to the outer wall of the connecting vertical plate (300), a screw passes through the interior of the guide cylinder (303), and the guide cylinder (303) is opposite to the positioning groove (101).

2. The hallux valgus osteotomy tool according to claim 1, characterized in that: A supporting vertical plate (200) is installed on the outer wall of the connecting horizontal plate (102), a threaded column (201) is threadedly connected to the supporting vertical plate (200), a guide tube is rotatably connected inside the adjusting screw cap (202), a screw passes through the inside of the guide tube, fastening components are installed at both ends of the guide tube to fix the screw, a moving component is installed on the connecting horizontal plate (102), the moving component enables the supporting vertical plate (200) to move on the outer wall of the connecting horizontal plate (102), and a length measuring component is installed on the supporting vertical plate (200), and the length measuring component detects the protruding length of the screw inside the guide tube.

3. The hallux valgus osteotomy tool according to claim 2, characterized in that: The outer wall of the connecting vertical plate (300) is provided with a plurality of through holes (304), the adjusting vertical plate (301) is provided with a slide groove (305), the adjusting vertical plate (301) is sleeved on the outer wall of the connecting vertical plate (300) through the slide groove (305), the positioning component (302) passes through the adjusting vertical plate (301) and the through holes (304) to fix the adjusting vertical plate (301) on the surface of the connecting vertical plate (300), and the positioning component (302) is provided with a stabilizing component, which stabilizes the adjusting vertical plate (301) on the outer wall of the connecting vertical plate (300).

4. The hallux valgus osteotomy tool according to claim 3, characterized in that: The positioning assembly (302) comprises a first latch pin (307) and a second latch pin (311); the insertion end of the first latch pin (307) is concave, the plug-in portion (313) on the second latch pin (311) is inserted into the concave portion of the first latch pin (307), an internal thread groove (309) is provided at the end of the insertion end of the first latch pin (307), and a threaded boss (312) is fixedly connected to the outer wall of the second latch pin (311) near the plug-in portion (313), and the threaded boss (312) is threadedly connected to the internal thread groove (309).

5. The hallux valgus osteotomy tool according to claim 4, characterized in that: A connecting sleeve (306) is fixedly connected to the top of the connecting vertical plate (300), and a fastening bolt (105) passes through an outer wall of one side of the connecting sleeve (306), and the fastening bolt (105) is threadedly connected to the angle positioning plate (103).

6. The hallux valgus osteotomy tool according to claim 5, characterized in that: The fastening assembly comprises an external thread (203), a fastening nut (204) and a through groove. The two ends of the threaded column (201) are fixedly connected with an adjusting screw cap (202). The inside of the adjusting screw cap (202) is rotatably connected with a guide tube. The two ends of the guide tube pass through the adjusting screw cap (202). The outer walls of the two ends of the guide tube passing through the adjusting screw cap (202) are provided with external threads (203). The guide tube is provided with a plurality of through grooves at the external thread (203). The guide tube at the external thread (203) is made of elastic material and is expanded outward under normal conditions. The inner walls of the guide tube at the external threads (203) on both sides are provided with rubber pads. The outer walls of the external threads (203) on both sides are threadedly connected with fastening nuts (204). The screws are inserted into the inside of the guide tube. The fastening nuts (204) are rotated so that the guide tube at the external thread (203) contracts inward to clamp the outer wall of the screw.

7. The hallux valgus osteotomy tool according to claim 6, characterized in that: The moving assembly comprises a sliding groove (106) and an adjusting cap (108); the sliding groove (106) is arranged at the upper end of the connecting horizontal plate (102); an adjusting screw (107) is rotatably connected inside the sliding groove (106); one end of the adjusting screw (107) close to the angle positioning plate (103) passes through the connecting horizontal plate (102) and is fixedly connected to the adjusting cap (108); the outer wall of the supporting vertical plate (200) is provided with a first through groove (206); the first through groove (206) is sleeved on the outer wall of the connecting horizontal plate (102); a sliding block (205) is fixedly connected to the inner top of the first through groove (206); the sliding block (205) is slidably connected to the inside of the sliding groove (106); and the sliding block (205) is threadedly connected to the adjusting screw (107).

8. The hallux valgus osteotomy tool according to claim 7, characterized in that: The length detection assembly comprises a sliding rod (208), a positioning bolt (214), an extension rod (211), a scale mark (212) and an abutment plate (213); the outer wall of the support vertical plate (200) is provided with a second through groove (207) in the same direction as the threaded column (201); the interior of the second through groove (207) is slidably connected with the sliding rod (208); one end of the sliding rod (208) close to the angle positioning plate (103) is detachably connected to the limit plate (209); one end of the sliding rod (208) away from the limit plate (209) is telescopically connected to the extension rod (211); the outer wall of the extension rod (211) is provided with a scale mark (212); the end of the extension rod (211) is rotatably connected to the abutment plate (213); the outer wall of the support vertical plate (200) is threadedly connected with the positioning bolt (214); the threaded end of the positioning bolt (214) contacts the outer wall of the sliding rod (208).

9. The hallux valgus osteotomy tool according to claim 8, characterized in that: The outer wall of the extension rod (211) inserted into the interior of the sliding rod (208) is provided with a return spring (210), and the return spring (210) is clamped with the interior of the sliding rod (208).

10. The hallux valgus osteotomy tool according to claim 9, characterized in that: The stabilizing component comprises an expansion airbag (308), a communication hole (310) and a sealing block (314); a plurality of expansion airbags (308) are embedded in the outer wall of the insertion end of the first latch pin (307); a communication hole (310) is provided at the inner concave portion of the insertion end of the first latch pin (307); the communication hole (310) is connected to the air inlet end of each expansion airbag (308); and a sealing block (314) is provided at the end of the plug-in portion (313).

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