Medical parietal rod

Abstract

Medical parietal bone rod, by parietal bone rod, hammer rod, hammer block, limit round plate, groove, medical parietal bone rod is formed, the end of parietal bone rod top is needed to correct the bone, the other end is connected with hammer rod through limit round plate and groove, after installation, hammer block is used to knock parietal bone rod to make it correct bone. The whole device is convenient to install, unlike the existing technology, it is easy to make mistakes and cause secondary injury to patients, using the device can not be directly facing the parietal bone rod during the process of doctor observing image, and the bone hammer can be used stably and accurately, which ensures the safety of patient treatment and greatly reduces the mistake, greatly increases the success rate of operation.

Description

Technical Field

[0001] This utility model relates to orthopedic surgical aids, specifically a medical bone-setting rod. Background Technology

[0002] In modern orthopedic surgery, the surgeon needs to use X-rays or other imaging technologies to observe the bones in the area requiring surgical correction. At the same time, the surgeon also needs to use a bone hammer to perform the correction. During the correction using the bone hammer, the images need to be monitored in real time to ensure the smooth progress of the surgery. However, while monitoring the images, the surgeon's line of sight cannot remain fixed on the point of impact with the bone hammer. This means that when using the bone hammer to strike, it may cause the hammer to strike to one side or deviate from its target. This can not only cause secondary injury to the patient but also potentially harm the surgeon, leading to reduced surgical efficiency and success rate. Summary of the Invention

[0003] The purpose of this invention is to provide a medical apical rod, which consists of an apical rod and a hammer rod. When the doctor observes the image in real time and strikes the apical rod with the hammer, there will be no misalignment. This solves the safety problem for both doctors and patients and greatly increases the success rate of surgery. The medical apical rod solves the problems existing in the prior art.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A medical parietal rod includes a detachable parietal rod and a hammer rod. One end of the parietal rod is provided with a boss, and a groove is provided on the boss. Two through slots are provided on the circumference of the groove. A limiting slot is provided in the boss and communicates with each through slot. One end of the hammer rod is equipped with a limiting circular plate that cooperates with the groove. Two fixing blocks that cooperate with the through slots are installed on the limiting circular plate. The fixing blocks can rotate in the through slots and enter the limiting slots, and the limiting circular plate is fixed in the groove by the fixing blocks. The other end of the hammer rod is equipped with a limiting block. A movable hammer block is installed on the hammer rod between the limiting circular plate and the limiting block. When the hammer block moves close to the limiting circular plate, it can strike the boss. The parietal rod also includes a handle connected to the boss. A connecting rod is installed on the side of the handle away from the boss. A contact block is installed on the end of the connecting rod away from the handle. Several friction teeth are provided on the end face of the contact block. A frosted limiting band is provided on the outer periphery of the hammer rod near the limiting block. When the hammer moves closer to the limiting block, it can contact the frosted limiting band to decelerate. A placement groove communicating with the through slot is opened in the boss. A spring is installed in the placement groove, and a locking block is installed on the end of the spring near the through slot. The spring always has a tendency to push the locking block into the through slot. The locking block located in the through slot can lock the fixing block in the limiting groove. A first inclined edge is provided on the locking block, and a second inclined edge that cooperates with the first inclined edge is provided on the fixing block. When the hammer rod is rotated, the second inclined edge can squeeze the first inclined edge to overcome the spring force and allow the locking block to fully enter the placement groove. The diameter of the boss is larger than the diameter of the handle, and the diameter of the handle is larger than the diameter of the connecting rod. The outer periphery of the hammer has four surfaces, two of which are flat and the other two are curved, with the flat and curved surfaces arranged adjacent to each other.

[0005] The positive effects of this utility model are as follows: The medical bone rod described in this utility model is composed of a bone rod, a hammer rod, a hammer block, a limiting circular plate, and a groove. One end of the bone rod is pressed tightly against the bone that needs correction, and the other end is connected to the hammer rod through the limiting circular plate and the groove. After installation, the hammer block is used to strike the bone rod to correct the bone. The overall device is easy to install, unlike existing technologies which are prone to errors and secondary injury to the patient. Using this device, doctors can stably and accurately use the hammer to strike the bone without looking directly at the bone rod during image observation, ensuring patient safety while greatly reducing errors and significantly increasing the success rate of surgery. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 yes Figure 2Enlarged view of the sectional view along the AA direction; Figure 4 This is a schematic diagram of the hammer rod structure; Figure 5 This is a top view of the parietal skeletal column; Figure 6 yes Figure 5 Enlarged view of the sectional view along the BB direction; Figure 7 This is a schematic diagram of the parietal skeletal structure; Figure 8 This is a schematic diagram of the structure where the fixed block enters the through slot; Figure 9 This is a schematic diagram of the structure where the fixed block enters the limiting groove. Detailed Implementation

[0007] The present invention will be further described below with reference to the embodiments, but the present invention is not limited to these examples. Any improvements made without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

[0008] like Figure 1 As shown, a medical bone rod includes a detachable bone rod 1 and a hammer rod 6. The bone rod 1 is used to contact bone, and one end of the bone rod 1 is provided with a boss 2. The boss 2 is used to increase the contact area with the hammer block 9, so as to better transmit the force generated by the collision.

[0009] The boss 2 has a groove 3, and two interconnected through slots 4 are formed on the circumference of the groove 3. A limiting slot 5 is formed in the boss 2, which is connected to each through slot 4. A limiting circular plate 7 that mates with the groove 3 is installed at one end of the hammer rod 6. The diameter of the limiting circular plate 7 can be equivalent to the diameter of the groove 3. After the limiting circular plate 7 is installed in the groove 3, the top of the limiting circular plate 7 is lower than the groove 3.

[0010] The limiting circular plate 7 is equipped with two fixing blocks 10 that mate with the through groove 4. These fixing blocks 10 can rotate within the through groove 4 and enter the limiting groove 5, preventing them from moving upwards. The fixing blocks 10 then fix the limiting circular plate 7 within the groove 3, ensuring the fixed installation of the top bone rod 1 and the hammer rod 6. Without external force to rotate the hammer rod 6, the limiting circular plate 7 will remain trapped within the groove 3.

[0011] A limiting block 8 is installed at the other end of the hammer rod 6. A movable hammer block 9 is installed on the hammer rod 6 between the limiting circular plate 7 and the limiting block 8. When the hammer block 9 moves close to the limiting circular plate 7, it can strike the boss 2. The force of the hammer block 9 impact is transmitted through the boss 2 to correct the bone.

[0012] The top bone rod 1 is equipped with a handle 17 connected to the boss 2, wherein the diameter of the boss 2 is larger than the diameter of the handle 17, which not only protects the hand holding the handle 17 but also increases the contact area with the hammer block 9. A connecting rod 18 is installed on the side of the handle 17 away from the boss 2, wherein a contact block 19 is installed on the end of the connecting rod 18 away from the handle 17. The end face of the contact block 19 is provided with several friction teeth 20. The friction teeth 20 can contact the bone through multiple small teeth, increasing the friction force and providing better stability to the part that needs to be corrected.

[0013] Furthermore, a frosted limiting band 11 can be provided on the outer periphery of the hammer rod 6 near the limiting block 8. When the hammer block 9 moves close to the limiting block 8, it can come into contact with the frosted limiting band 11 and decelerate. By decelerating the hammer block 9 through the frosted limiting band 11, the doctor can reduce the collision with the limiting block 8 caused by excessive force when lifting the hammer block 9 upward. Moreover, when the doctor moves the hammer block 9 upward in sync with the image, it will provide dynamic feedback to the doctor when passing through the frosted limiting band 11. This allows the doctor to determine the moving position of the hammer block 9 without looking directly at it while observing the image, based on the feedback provided by the frosted limiting band 11, thereby preventing collision with the limiting block 8 and ensuring that the contact between the top bone rod 1 and the bone does not detach or shift.

[0014] Furthermore, the boss 2 may have a placement groove 12 communicating with the through groove 4. The placement groove 12 is perpendicular to the through groove 4, and a spring 13 is installed in the placement groove 12. A locking block 14 is installed at the end of the spring 13 near the through groove 4. The spring 13 always has a tendency to push the locking block 14 into the through groove 4. After the spring 13 fully pushes the locking block 14 into the through groove 4, a small part of the locking block 14 remains in the placement groove 12, ensuring that the locking block 14 will not deviate when moving up and down. The locking block 14 located in the through groove 4 can lock the fixing block 10 in the limiting groove 5. The locking block 14 is provided with a first inclined side 15, and the fixing block 10 is provided with a second inclined side 16 that cooperates with the first inclined side 15. When the hammer rod 6 is rotated, the second inclined side 16 can squeeze the first inclined side 15 to overcome the elastic force of the spring 13 and allow the locking block 14 to fully enter the placement groove 12. At this time, the fixing block 10 enters the through groove 4 and moves the hammer rod 6 upward to separate it from the top bone rod 1.

[0015] Furthermore, the diameter of the boss 2 is larger than the diameter of the connected handle 17. While ensuring an increased contact area with the hammer block 9, it can also shield the hand holding the handle 17, preventing the hammer block 9 from hitting the hand during the strike. The diameter of the handle 17 is larger than the diameter of the connecting rod 18 at one end. While improving the grip, when the surgical incision is small or the position for placing the top bone rod 1 is narrow, the connecting rod 18 can be more easily inserted into the incision site and its position adjusted, which is more conducive to the operation and the doctor's use.

[0016] Furthermore, the hammer block 9 can be provided with four surfaces on its outer periphery, two of which are flat surfaces and the other two are curved surfaces. The flat and curved surfaces are arranged adjacent to each other, so that the surgeon can apply force by pinching the two flat surfaces with his fingers, and his fingers will not be pinched during the tapping process.

[0017] After the limiting circular plate 7 below the hammer rod 6 is placed in the groove 3 opened in the boss 2, the hammer rod 6 is pressed and the locking block 14 is pushed down by the fixing block 10 to overcome the elastic force of the spring 13. Then the hammer rod 6 is rotated so that the fixing block 10 enters the limiting groove 5. The spring 13 restores its elastic force and lifts the locking block 14 to limit the fixing block 10. The top bone rod 1 and the hammer rod 6 are installed. The top bone rod 1 can be provided with a boss 2, and a handle 17 is connected below the boss 2. The doctor holds the handle 17 with one hand and places the end face of the contact block 19 installed through the connecting rod 18 on the bone that needs to be corrected. The friction teeth 20 are used to increase the friction and stabilize the placement. This device can ensure that the doctor can observe the image during the operation and correct the bone without hitting the patient as in the existing technology. Furthermore, the deceleration feedback of the abrasive limit belt 11 further ensures that the doctor reduces the chance of error when using it. The other hand holds the two flat surfaces of the hammer block 9 and strikes the boss 2 with force. The force is transmitted through the boss 2 to correct the bone.

[0018] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.

Claims

1. A medical parietal bone rod, characterized in that: The device includes a detachable top rod (1) and a hammer rod (6). One end of the top rod (1) has a boss (2) with a groove (3) on it. Two through slots (4) are connected around the circumference of the groove (3). A limiting slot (5) connected to each through slot (4) is provided inside the boss (2). One end of the hammer rod (6) is fitted with a limiting circular plate (7) that mates with the groove (3). Two fixing blocks (10) that mate with the through slots (4) are installed on the limiting circular plate (7). The fixing blocks (10) can rotate inside the through slots (4) and enter the limiting slots (5), and the limiting blocks (10) can be used to fix the hammer rod (6). The positioning plate (7) is fixed in the groove (3). The other end of the hammer rod (6) is equipped with a limiting block (8). A movable hammer block (9) is installed on the hammer rod (6) between the limiting plate (7) and the limiting block (8). When the hammer block (9) moves close to the limiting plate (7), it can strike the boss (2). A handle (17) is also installed at one end of the boss (2). A connecting rod (18) is installed at the end of the handle (17) away from the boss (2). A contact block (19) is installed at the end of the connecting rod (18) away from the handle (17). Several friction teeth (20) are provided on the end face of the contact block (19).

2. The medical parietal bone rod according to claim 1, characterized in that: The hammer rod (6) is provided with a frosted limiting band (11) on the outer periphery of the end near the limiting block (8). When the hammer block (9) moves close to the limiting block (8), it can come into contact with the frosted limiting band (11) and decelerate.

3. The medical parietal bone rod according to claim 1, characterized in that: The boss (2) has a placement groove (12) that communicates with the through groove (4). A spring (13) is installed in the placement groove (12). A locking block (14) is installed on one end of the spring (13) near the through groove (4). The spring (13) always has the tendency to push the locking block (14) into the through groove (4). The locking block (14) located in the through groove (4) can lock the fixing block (10) in the limiting groove (5). A first inclined side (15) is provided on the locking block (14). A second inclined side (16) that cooperates with the first inclined side (15) is provided on the fixing block (10). When the hammer rod (6) is rotated, the second inclined side (16) can squeeze the first inclined side (15) to overcome the elastic force of the spring (13) and allow the locking block (14) to fully enter the placement groove (12).

4. A medical parietal bone rod according to claim 1, characterized in that: The diameter of the boss (2) is greater than the diameter of the handle (17), and the diameter of the handle (17) is greater than the diameter of the connecting rod (18).

5. A medical parietal bone rod according to claim 1, characterized in that: The hammer block (9) has four surfaces on its outer periphery, two of which are planes and the other two are arc surfaces, with the planes and arc surfaces arranged adjacent to each other.

Images