Rapid femoral medullary cavity forming assembly

Abstract

The application discloses a kind of fast femoral medullary cavity forming assembly, it is related to the technical field of forming assembly, the forming assembly includes bone cavity file, the side of the bone cavity file is equipped with connector;The bone cavity file includes cutter body, ring tooth, rhombus tooth, connecting hole, mounting head and clamping groove;Ring tooth and rhombus tooth are opened in the cutter body, connecting hole is opened in one end of the cutter body, mounting head is connected with one end close to connecting hole of the cutter body, clamping groove is opened in the mounting head, is locked by handle driving spring leaf transmission and is driven to rotate and is inserted into clamping groove to realize quick locking, cooperate the damping buffer and power-off self-locking of hydraulic device, so that bone cavity file always keeps fixed in the operation of expanding medullary cavity, avoid the risk of operation caused by vibration loosening, improve the operation safety and convenience.

Description

Technical Field

[0001] This invention relates to the field of molding component technology, specifically a rapid femoral medullary cavity molding component. Background Technology

[0002] Total hip arthroplasty is an important means of treating end-stage hip diseases such as avascular necrosis of the femoral head and osteoarthritis of the hip. During the operation, the femoral medullary cavity needs to be reamed to allow for the implantation of a femoral stem prosthesis of appropriate size. The quality of medullary cavity reaming directly affects the initial stability, force transmission and long-term bone ingrowth effect after prosthesis implantation, and is one of the key factors that determine the success or failure of the operation.

[0003] Currently, commonly used tools for femoral medullary canal reconstruction mainly include a reamer and a matching holder. Most existing holders use a manual locking structure, where a handle drives a locking hook to engage with a slot on the reamer's mounting head for fixation. After locking, friction is used to maintain the engagement. However, during medullary canal reaming, the reamer is subjected to continuous impact loads and torsional torques. The manual locking structure is prone to gradually loosening due to vibration, leading to a loose connection between the reamer and the holder. This affects the accuracy and safety of the medullary canal reaming operation, and in severe cases, the reamer may remain in the medullary canal, increasing surgical risks. Furthermore, when the reamer becomes stuck due to bone fragment impaction, changes in medullary canal morphology, or hammering, conventional holders lack effective emergency removal methods. Difficult removal during surgery often requires enlarging the surgical incision or even changing the surgical plan, prolonging the operation time and increasing the risk of trauma and postoperative complications for the patient. Summary of the Invention

[0004] The purpose of this invention is to provide a quick femoral medullary cavity shaping component to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the forming assembly includes a bone cavity file, and a connector is mounted on one side of the bone cavity file; The bone cavity file includes a blade body, ring teeth, rhomboid teeth, connecting holes, mounting head, and slot; The blade body is provided with ring teeth and rhomboid teeth, and a connecting hole is provided at one end of the blade body. An installation head is connected to the end of the blade body near the connecting hole, and a slot is provided on the installation head.

[0006] As a preferred technical solution, the connector is a holder, which includes a housing, a handle, a spring, a locking hook, and a hydraulic device; The mounting head is inserted into the housing, a handle is hinged to the housing, a locking hook is hinged inside the housing, a spring is hinged to one end of the handle, one end of the spring is hinged to the middle of the locking hook, one end of the locking hook fits into the slot, a hydraulic device is installed inside the housing, and the output end of the hydraulic device is hinged to the handle.

[0007] As a preferred technical solution, the holder further includes a limiting component; The limiting assembly includes a slide rod, a guide block, a limiting spring, a sleeve, a guide cylinder, a spiral groove, an arc groove, and an arc block; A sliding rod is rotatably connected to the spring piece. A guide block and a guide cylinder are fixedly connected inside the housing. A sleeve is fixedly connected to the outside of the sliding rod. The sleeve is slidably connected inside the guide cylinder. The sliding rod is slidably connected inside the guide block. A limiting spring is fitted over the sliding rod. The sleeve and the guide block are connected by the limiting spring. A spiral groove and an arc groove are formed on the guide cylinder. One end of the arc groove is connected to the spiral groove. An arc block is fixedly connected to the outside of the sleeve. The arc block is slidably connected inside the spiral groove and the arc groove. The outer diameter of the limiting spring is smaller than the inner diameter of the guide cylinder.

[0008] As a preferred technical solution, the connector is a puller, which includes a handle, a connecting rod, an extractor, and a connector head; One end of the handle is connected to a connecting rod, one end of the connecting rod is threaded to an extractor, one end of the extractor is connected to a connector, and the connector is installed in a connecting hole.

[0009] As a preferred technical solution, the puller further includes a vibration excitation component; The vibration excitation assembly includes a handguard, a vibration spring, a connecting block, and a vibration block; One end of the grip is connected to a handguard, and a connecting block is provided on one side of the handguard. The connecting block is connected to a connecting rod, and a connecting handle is provided on one side of the connecting block. The connecting handle is slidably connected to the connecting rod, and the handguard and the connecting handle are connected by a vibration spring.

[0010] As a preferred technical solution, the excitation assembly further includes a connecting handle and a gasket; The exciter is symmetrically connected with connecting handles, and the connecting handles are provided with anti-slip grooves. A pad is connected to one side of the exciter, and the pad does not contact the connecting rod.

[0011] As a preferred technical solution, the hand guard is connected to the connecting rod, and the excitation spring is sleeved on the outside of the connecting rod and the connecting block.

[0012] As a preferred technical solution, a bone hammer is provided on one side of the connecting rod; The bone hammer includes a hammer body and a guide groove; The hammer body is provided with a guide groove, and the hammer body is slidably connected to the outside of the connecting rod through the guide groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a handle-driven spring plate to rotate the locking hook and engage it in the slot for quick locking. Combined with the damping buffer of the hydraulic device and the self-locking function in case of power failure, the bone cavity file remains fixed during the medullary reaming operation, avoiding the surgical risks caused by loosening due to vibration, and improving the safety and convenience of operation.

[0014] 2. The present invention utilizes the cooperation between the arc-shaped block and the spiral groove in the limiting component. When the handle is pressed down, the arc-shaped block slides into the arc-shaped groove along the spiral groove to achieve circumferential locking, locking the handle in the locked position and preventing the handle from accidentally rebounding and unlocking during the operation. When unlocking, pressing the handle again causes the arc-shaped block to disengage from the arc-shaped groove, and the limiting spring pushes the sleeve to reset, thus improving the stability of operation.

[0015] 3. This invention uses the extractor of the puller to quickly hook and connect with the connecting hole of the bone file. With the axial impact force generated by the compression and release of the excitation spring in the excitation assembly, the stuck bone file can be gradually loosened and removed. In the case of severe sticking, the bone hammer slides along the connecting rod axially through the guide groove and hammers the excitation block to output a larger impact load. This realizes a graded emergency removal scheme, reduces the risk of the bone file being stuck and difficult to remove during the operation, and avoids increasing surgical trauma due to removal difficulties. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the bone cavity file structure of the present invention; Figure 3 This is a schematic diagram of the shell structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 5 This is a schematic diagram of the puller structure of the present invention; Figure 6 This is a schematic diagram of the explosion of the puller of the present invention; Figure 7 This is a schematic diagram of the limiting component structure of the present invention; Figure 8 This is a schematic diagram of the excitation component structure of the present invention.

[0017] In the diagram: 1. Bone cavity file; 11. Blade body; 12. Ring tooth; 13. Diamond tooth; 14. Connecting hole; 15. Mounting head; 16. Slot; 2. Holder; 21. Housing; 22. Handle; 23. Spring; 24. Locking hook; 25. Hydraulic unit; 26. Limiting assembly; 261. Slide rod; 262. Guide block; 263. Limiting spring; 264. Sleeve; 265. Guide cylinder; 266. Spiral groove; 267. Arc groove; 268. Arc block; 3. Puller; 31. Handle; 32. Connecting rod; 33. Extractor; 34. Connecting head; 35. Vibration assembly; 351. Hand guard; 352. Vibration spring; 353. Connecting block; 354. Vibration block; 355. Connecting handle; 356. Washer; 4. Bone hammer; 41. Hammer body; 42. Guide groove. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: As Figures 1-4 As shown, the present invention provides a technical solution for a quick femoral medullary cavity shaping assembly, which includes a bone cavity file 1, and a connector is installed on one side of the bone cavity file 1. The bone cavity file 1 includes a blade body 11, ring teeth 12, rhomboid teeth 13, a connecting hole 14, a mounting head 15, and a slot 16; the blade body 11 has ring teeth 12 and rhomboid teeth 13, one end of the blade body 11 has a connecting hole 14, the end of the blade body 11 near the connecting hole 14 is connected to the mounting head 15, and the mounting head 15 has a slot 16.

[0020] The bone cavity file 1 has a tapered structure along its axial direction. The ring teeth 12 are annular, raised, transverse cutting edges, arranged around the outer wall of the large end of the file 11, spaced apart along its axial direction. When the bone cavity file 1 is struck downwards, the ring teeth 12 cut the inner wall of the bone, expanding the medullary cavity to a size matching the prosthesis stem. A chip groove is provided axially between adjacent ring teeth 12 to store some of the filed bone chips, reducing subsequent processing workload. The rhomboid teeth 13 are rhomboid, block-shaped, raised longitudinal cutting edges. On the outer wall of the small end of the blade 11, the longitudinal edges are distributed along the circumference of the blade 11. When striking forward, the longitudinal edges are attached to the inner wall of the medullary cavity, which restricts the left and right deviation of the bone cavity file 1 and assists in scraping and breaking some bone fragments. The connecting hole 14 is opened at the large end of the bone cavity file 1, and the inner wall of the connecting hole 14 is provided with a hook step surface. The mounting head 15 is fixedly connected to the large end of the blade 11 and is inserted into the inner wall of the front opening of the housing 21. The slot 16 is opened on the outer peripheral wall of the mounting head 15, and the slot opening faces the radial direction of the mounting head 15.

[0021] like Figure 1 , Figure 3 , Figure 4 As shown, the connector is a holder 2, which includes a housing 21, a handle 22, a spring 23, a locking hook 24, and a hydraulic actuator 25. The mounting head 15 is inserted into the housing 21. The handle 22 is hinged to the housing 21, and the locking hook 24 is hinged inside the housing 21. One end of the handle 22 is hinged to the spring 23, and one end of the spring 23 is hinged to the middle of the locking hook 24. One end of the locking hook 24 fits into the slot 16. The hydraulic actuator 25 is installed inside the housing 21, and the output end of the hydraulic actuator 25 is hinged to the handle 22. The holder 2 also includes a limiting component 26; the limiting component 26 includes a slide rod 261, a guide block 262, a limiting spring 263, a sleeve 264, a guide cylinder 265, a spiral groove 266, an arc groove 267, and an arc block 268; the slide rod 261 is rotatably connected to the spring piece 23, the guide block 262 and the guide cylinder 265 are fixedly connected inside the housing 21, the sleeve 264 is fixedly connected outside the slide rod 261, the sleeve 264 is slidably connected inside the guide cylinder 265, and the slide rod 261 is slidably connected... The guide block 261 is fitted inside the guide block 262, and a limiting spring 263 is fitted over the slide rod 261. The sleeve 264 is connected to the guide block 262 through the limiting spring 263. The guide cylinder 265 has a spiral groove 266 and an arc groove 267. One end of the arc groove 267 is connected to one end of the spiral groove 266. An arc block 268 is fixedly connected to the outside of the sleeve 264. The arc block 268 is slidably connected in the spiral groove 266 and the arc groove 267. The outer diameter of the limiting spring 263 is smaller than the inner diameter of the guide cylinder 265.

[0022] The inner diameter of the front opening of the housing 21 of the holder 2 is adapted to the outer diameter of the mounting head 15. The housing 21 of the holder 2 smoothly transitions to the shoulder of the bone file 1 to avoid scraping the greater trochanter bone. The middle hinge shaft of the handle 22 is hinged to the housing 21. The locking hook 24 is bent and hook-shaped. The middle part is hinged to the housing 21 through the hinge shaft. The front end of the locking hook 24 is provided with a bent hook head. The shape of the bent hook head is adapted to the cross-sectional shape of the slot 16. One end of the spring piece 23 is hinged to the front end of the handle 22 through the third hinge shaft, and the other end is hinged to the rear end of the locking hook 24. The hydraulic device 25 is fixedly installed inside the rear end of the housing 21. The end of the output shaft is hinged to the rear end of the handle 22. One end of the slide rod 261 is rotatably connected to the spring piece 23 via a connector. The guide block 262 is fixedly connected to the inner wall of the housing 21. An axial guide hole is provided on the guide block 262. The slide rod 261 passes through the guide hole of the guide block 262 and slides in cooperation with the guide hole. The guide cylinder 265 is fixedly connected to the inner wall of the housing 21 and is located behind the guide block 262. The guide cylinder 265 is coaxially arranged with the guide block 262. The sleeve 264 is fixedly sleeved on the outer wall of the slide rod 261. The outer wall of the sleeve 264 is aligned with the guide hole. The inner wall of the cylinder 265 is slidably fitted, and the limiting spring 263 is sleeved on the outside of the slide rod 261. The limiting spring 263 is connected to the opposite face of the sleeve 264 and the guide block 262. The spiral groove 266 is opened on the cylinder wall of the guide cylinder 265 and extends spirally in the circumferential direction. The arc groove 267 is connected to the end of the spiral groove 266. The arc block 268 is fixedly connected to the outer wall of the sleeve 264, slides along the spiral groove 266 as the sleeve 264 moves axially, and enters the arc groove 267 as the sleeve 264 rotates. By pressing down the handle 22, the spring 23 drives the locking hook 24 to rotate and engage with the slot 16 to complete the mechanical locking. The hydraulic device 25 can provide auxiliary locking power and damping for the swing of the handle 22 to prevent the handle 22 from rebounding and mis-locking. The power-off self-locking further prevents accidental loosening during the operation. When the handle 22 is pressed down, the spring 23 drives the slide rod 261 to advance axially, and the sleeve 264 drives the arc block 268 to slide spirally along the spiral groove 266. After reaching the end of the stroke, the arc block 268 slides into the arc groove 267 to lock, locking the handle 22 in the locked position and maintaining the locking hook 24 in the engaged state. Pressing the handle 22 again causes the arc block 268 to disengage from the arc groove 268 limit, and the limit spring 263 pushes the sleeve 264 and the slide rod 261 to reset, completing the unlocking.

[0023] Example 2: Compared with Example 1, the main difference is that the connector is a puller 3.

[0024] like Figure 5 , Figure 6As shown, the puller 3 includes a handle 31, a connecting rod 32, an extractor 33, and a connector 34; one end of the handle 31 is connected to the connecting rod 32, one end of the connecting rod 32 is threadedly connected to the extractor 33, one end of the extractor 33 is connected to the connector 34, and the connector 34 is installed in the connecting hole 14.

[0025] When the bone file 1 becomes stuck and difficult to remove due to bone fragments or changes in the shape of the medullary cavity, an emergency removal operation is performed using the puller 3. One end of the handle 31 is fixedly connected to the tail end of the connecting rod 32, and the outer surface is provided with anti-slip texture. The front end of the connecting rod 32 is provided with external threads, and the tail end of the extractor 33 is provided with an internal thread hole. The external thread at the front end of the connecting rod 32 is screwed into the internal thread hole at the tail end of the extractor 33 for internal thread connection. The connector 34 is connected to the front end of the extractor 33. The connector 34 has a hemispherical structure. After the connector 34 is inserted into the connecting hole 14 and rotated 90 degrees, the connector 34 is fixed in the connecting hole 14.

[0026] like Figure 6 , Figure 8 As shown, the puller 3 also includes a vibration assembly 35; the vibration assembly 35 includes a hand guard 351, a vibration spring 352, a connecting block 353, and a vibration block 354; one end of the handle 31 is connected to the hand guard 351, one side of the hand guard 351 is provided with a connecting block 353, the connecting block 353 is connected to the connecting rod 32, one side of the connecting block 353 is provided with a connecting handle 355, the connecting handle 355 is slidably connected to the connecting rod 32, and the hand guard 351 and the connecting handle 355 are connected through the vibration spring 352; the vibration assembly 35 also includes a connecting handle 355 and a washer 356; the vibration block 354 is symmetrically connected with the connecting handle 355, the connecting handle 355 is provided with an anti-slip groove, one side of the vibration block 354 is connected with the washer 356, the washer 356 does not contact the connecting rod 32; the hand guard 351 is connected to the connecting rod 32, and the vibration spring 352 is sleeved on the outside of the connecting rod 32 and the connecting block 353.

[0027] The handguard 351 is fixedly connected to the connecting rod 32 near the handle 31, and the outer diameter of the handguard 351 is larger than the outer diameter of the handle 31; the connecting block 353 is fixedly connected to the front end of the connecting rod 32, and the outer diameter of the connecting block 353 is larger than the outer diameter of the connecting rod 32; the exciter block 354 is sleeved on the outside of the connecting rod 32, and the exciter block 354 can slide along the axial direction of the connecting rod 32; the two ends of the connecting handle 355 are respectively fixedly connected to the upper and lower sides of the exciter block 354, and the connecting... The handle 355 has an anti-slip groove; the excitation spring 352 is sleeved on the outside of the connecting rod 32, and the inner diameter of the excitation spring 352 is larger than the outer diameter of the connecting block 353. The excitation spring 352 is connected to the opposite side of the hand guard 351 and the connecting handle 355; the washer 356 is fixedly connected to the end face of the excitation block 354 facing the connecting block 353. There is a gap between the inner wall of the washer 356 and the outer wall of the connecting rod 32, which does not affect the sliding of the excitation block 354 on the connecting rod 32. By pulling the excitation block 354 backward, the excitation spring 352 is compressed to store energy. After the spring is released, it pushes the excitation block to strike the connecting block 353. The impact force is transmitted to the bone cavity file along the connecting rod 32, outputting a controllable primary excitation impact force. The bone cavity file 1 is then pulled out of the bone cavity by the puller 3.

[0028] like Figure 5 , Figure 8 As shown, a bone hammer 4 is provided on one side of the connecting rod 32; the bone hammer 4 includes a hammer body 41 and a guide groove 42; the guide groove 42 is provided on the hammer body 41, and the hammer body 41 is slidably connected to the outside of the connecting rod 32 through the guide groove 42.

[0029] A guide groove 42 is provided at the center of the hammer body 41 along the axial direction. The inner diameter of the guide groove 42 is larger than the outer diameter of the connecting rod 32. The hammer body 41 is sleeved on the outside of the connecting rod 32 through the guide groove 42 and slides along the axial direction of the connecting rod 32. When the spring excitation is insufficient to overcome the jamming resistance, the bone hammer 4 is sleeved on the outside of the connecting rod 32 and slides along the axis of the connecting rod 32 to strike the excitation block 354. The hammer head of the hammer body 41 contacts the pad 356, which buffers the impact noise and protects the impact contact surface. The external force drives the excitation block 354 to strike the connecting block 353 to output a larger impact load. The hand guard 351 is placed between the hand holding the hammer and the striking work area to prevent the bone hammer 4 from slipping and deviating and injuring the operator's hand. The guide groove 42 restricts the hammer body 41 to only make axial movements to avoid radial deviation during striking. After striking, the bone hammer 4 can be directly removed.

[0030] The working principle of the present invention is as follows: During surgery, the installation head 15 is inserted into the housing 21; the handle 22 of the holder 2 is pulled, and the handle 22 drives the spring piece 23 to drive the locking hook 24 to rotate around the hinge point, and lock it into the slot 16 to lock the bone cavity file 1; when operation is inconvenient, the handle 22 can be pushed by the hydraulic device 25 to control the locking and unlocking of the bone cavity file 1. When the spring 23 moves, it drives the slide bar 261 and the sleeve 264 to slide. The arc-shaped block 268 outside the sleeve 264 slides along the spiral groove 266 of the guide cylinder 265 and slides into the arc-shaped groove 267 to achieve a limit and lock the handle 22. After locking, the holder 2 is operated. The ring teeth 12 of the bone cavity file 1 compacts the proximal cancellous bone of the femur, and the rhomboid teeth 13 cut and trim the distal medullary cavity to complete the femoral medullary cavity reaming. After reaming, the handle 22 is pressed again, and the arc-shaped block 268 disengages from the limit of the arc-shaped groove 267. Under the action of the limit spring 263, the sleeve 264 and the arc-shaped block 268 return to the initial position along the spiral groove 266. After releasing the lock, the holder 2 can be removed from the bone cavity file 1. When the bone cavity file 1 is difficult to remove, it is removed by the puller 3; the connector 34 is inserted into the connector hole 14 and rotated 90 degrees to complete the connection. The extractor 33 is threaded to the connector rod 32. The operator holds the handle 31 and pulls the excitation block 354 to compress the excitation spring 352 to store energy. After releasing the excitation block 354, the excitation spring 352 pulls the excitation block 354 to strike the connector block 353. The axial impact force is transmitted to the bone cavity file 1 to overcome the stuck friction force inside the medullary cavity and loosen and remove the bone cavity file 1. If the bone file 1 is severely stuck and the spring excitation force is insufficient, the bone hammer 4 is aligned with the outside of the connecting rod 32 through the guide groove 42 on the hammer body 41. The guide groove 42 constrains the bone hammer 4 to slide along the connecting rod 32. The surgeon holds the bone hammer 4 and strikes the excitation block 354 to output a larger impact load and completely remove the stuck bone file 1.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid femoral medullary cavity reconstruction component, characterized in that: The forming assembly includes a bone cavity file (1), on one side of which a connector is mounted; The bone cavity file (1) includes a blade body (11), ring teeth (12), rhomboid teeth (13), connecting hole (14), mounting head (15), and slot (16). The blade body (11) is provided with ring teeth (12) and rhomboid teeth (13). One end of the blade body (11) is provided with a connecting hole (14). The end of the blade body (11) near the connecting hole (14) is connected to an installation head (15). The installation head (15) is provided with a slot (16).

2. The rapid femoral medullary cavity reconstruction component according to claim 1, characterized in that: The connector is a holder (2), which includes a housing (21), a handle (22), a spring (23), a locking hook (24), and a hydraulic device (25). The mounting head (15) is inserted into the housing (21). A handle (22) is hinged to the housing (21). A locking hook (24) is hinged inside the housing (21). A spring piece (23) is hinged to one end of the handle (22). One end of the spring piece (23) is hinged to the middle of the locking hook (24). One end of the locking hook (24) is engaged with the slot (16). A hydraulic device (25) is installed inside the housing (21). The output end of the hydraulic device (25) is hinged to the handle (22).

3. The rapid femoral medullary cavity reconstruction component according to claim 2, characterized in that: The holder (2) also includes a limiting component (26); The limiting component (26) includes a slide bar (261), a guide block (262), a limiting spring (263), a sleeve (264), a guide cylinder (265), a spiral groove (266), an arc groove (267), and an arc block (268). A slide rod (261) is rotatably connected to the spring piece (23). A guide block (262) and a guide cylinder (265) are fixedly connected inside the housing (21). A sleeve (264) is fixedly connected to the outside of the slide rod (261). The sleeve (264) is slidably connected inside the guide cylinder (265). The slide rod (261) is slidably connected inside the guide block (262). A limiting spring (263) is provided on the outer sleeve of the slide rod (261). The sleeve (264) and the guide block... (262) The guide cylinder (265) is connected by a limiting spring (263). A spiral groove (266) and an arc groove (267) are provided on the guide cylinder (265). The arc groove (267) is connected to one end of the spiral groove (266). An arc block (268) is fixedly connected to the outside of the sleeve (264). The arc block (268) is slidably connected in the spiral groove (266) and the arc groove (267). The outer diameter of the limiting spring (263) is smaller than the inner diameter of the guide cylinder (265).

4. The rapid femoral medullary canal reconstruction assembly according to claim 1, characterized in that: The connector is a puller (3), which includes a handle (31), a connecting rod (32), an extractor (33), and a connector (34). One end of the handle (31) is connected to a connecting rod (32), one end of the connecting rod (32) is threaded to an extractor (33), one end of the extractor (33) is connected to a connector (34), and the connector (34) is installed in the connecting hole (14).

5. The rapid femoral medullary cavity reconstruction component according to claim 4, characterized in that: The puller (3) also includes a vibration assembly (35). The vibration assembly (35) includes a hand guard (351), a vibration spring (352), a connecting block (353), and a vibration block (354). One end of the handle (31) is connected to a handguard (351). A connecting block (353) is provided on one side of the handguard (351). The connecting block (353) is connected to the connecting rod (32). A connecting handle (355) is provided on one side of the connecting block (353). The connecting handle (355) is slidably connected to the connecting rod (32). The handguard (351) and the connecting handle (355) are connected by a vibration spring (352).

6. The rapid femoral medullary cavity reconstruction assembly according to claim 5, characterized in that: The excitation assembly (35) also includes a connecting handle (355) and a gasket (356). The exciter block (354) is symmetrically connected with a connecting handle (355), and the connecting handle (355) is provided with an anti-slip groove. A pad (356) is connected to one side of the exciter block (354), and the pad (356) does not contact the connecting rod (32).

7. The rapid femoral medullary cavity reconstruction assembly according to claim 5, characterized in that: The handguard (351) is connected to the connecting rod (32), and the excitation spring (352) is sleeved on the outside of the connecting rod (32) and the connecting block (353).

8. The rapid femoral medullary cavity reconstruction assembly according to claim 4, characterized in that: A bone hammer (4) is provided on one side of the connecting rod (32); The bone hammer (4) includes a hammer body (41) and a guide groove (42). The hammer body (41) is provided with a guide groove (42), and the hammer body (41) is slidably connected to the outside of the connecting rod (32) through the guide groove (42).

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