Bone vertebral plate drilling equipment suitable for spinal surgery

Abstract

The utility model relates to bone vertebral plate drilling equipment suitable for spinal surgery, which comprises an equipment body, the equipment body is provided with an outer tube, an inner rod is arranged in the outer tube, a cross rod is movably arranged on the inner rod, two ends of the cross rod are fixedly contacted with the outer tube, a drill bit is arranged at the lower end of the inner rod, and an indicating device is arranged at the upper end of the inner rod. A force application device is arranged at the upper end of the outer pipe, a limiting nut used for limiting is arranged outside the outer pipe, a forward gap is formed between the limiting nut and the equipment body, and an endoscope is installed on the equipment body. Therefore, whether drilling is completed or not can be directly observed through the indicating rod, and the drilling depth can be conveniently controlled. The transverse rod has a proper displacement adjusting gap under the cooperation of the displacement groove, and the requirements for control over the drilling depth and observation whether the drilling depth is completed or not in the drilling period are met. And the limiting nut is adopted, the final path distance of the drill bit can be limited, and the drill bit is prevented from moving forwards too deeply and entering the spinal canal. And convenient operation can be realized, and the operation safety can be ensured.

Description

Technical Field

[0001] The utility model relates to a surgical device, in particular to a bone vertebral plate drilling device suitable for spinal surgery. Background Art

[0002] In recent years, spinal surgery has made great progress, and various technologies have been widely used in the clinical treatment of spinal degenerative diseases, such as cervical disc herniation, lumbar disc herniation, etc., including various methods of disc removal, such as total laminectomy, hemilaminectomy, endoscopic minimally invasive discectomy, pedicle screw implantation and internal fixation, discectomy and fusion, and the method of retaining the protruding cervical and lumbar discs and allowing them to retract naturally, namely the "disc preservation and restoration" technology, which has emerged in recent years. However, no matter which method is used, spinal decompression must be performed.

[0003] In order to facilitate the spinal decompression operation, a corresponding spinal surgery robot has been used to perform the corresponding operation through the manipulator configured therein. At the same time, in order to facilitate the operation, a bone (lamina) device is often required.

[0004] At present, conventional equipment is just a simple variation of the drill device. The operator completes the operation by turning the drill bit. The drill bit has free space to move forward. If it is not operated properly, it is easy to cause the bone (vertebral plate) to be too deep and damage the nerves. At the same time, the existing drill bit is an independent component, which makes it impossible for the operator to observe the current drilling process. Moreover, after the drilling is completed, there is no intuitive prompt, which completely depends on the operator's feel. For this reason, the use is relatively limited, and it cannot be directly transplanted to the surgical robot for use.

[0005] In view of the above-mentioned defects, the designer actively conducts research and innovation in order to create a bone vertebral plate drilling device suitable for spinal surgery to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a bone vertebral plate drilling device suitable for spinal surgery.

[0007] The utility model discloses a bone vertebral plate drilling device suitable for spinal surgery, comprising a device body, wherein: the device body is provided with an outer tube, an inner rod is provided in the outer tube, a cross bar is movably provided on the inner rod, both ends of the cross bar are in fixed contact with the outer tube, a drill bit is provided at the lower end of the inner rod, an indicating device is provided at the upper end of the inner rod, a force applying device is provided at the upper end of the outer tube, a limiting nut for limiting is provided outside the outer tube, a forward clearance is provided between the limiting nut and the device body, and an endoscope is installed on the device body.

[0008] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, a displacement groove is provided on the inner rod, and the cross bar is movably arranged in the displacement groove.

[0009] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, the displacement grooves arranged on the inner rod are vertically distributed long circular grooves.

[0010] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, the inner wall of the outer tube is provided with mirror-distributed positioning grooves, and the two ends of the cross bar are embedded in the corresponding positioning grooves.

[0011] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, a working channel extends from the lower end of the device body, and the drill bit extends outward from the working channel.

[0012] Furthermore, in the above-mentioned bone vertebral plate drilling equipment suitable for spinal surgery, the indicating device includes an indicating rod connected to the inner rod, a bearing step is provided at the bottom of the indicating rod, an elastic component is sleeved on the indicating rod, and the bottom of the elastic component is in contact with the bearing step.

[0013] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, the elastic component is a spring or a shrapnel.

[0014] Furthermore, in the above-mentioned bone lamina drilling device suitable for spinal surgery, the force-applying device is a handle or a motor, and the handle is a crossbar structure.

[0015] By means of the above solution, the utility model has at least the following advantages:

[0016] 1. Whether the drilling is completed can be directly observed through the indicator rod, which is convenient for controlling the drilling depth.

[0017] 2. The cross bar has an appropriate displacement adjustment gap through the cooperation of the displacement groove set on the inner rod to meet the control of drilling depth and observation of whether it is completed.

[0018] 3. The use of a limit nut can limit the final drill bit path distance to prevent the drill bit from moving too deep.

[0019] 4. It can realize convenient operation and ensure the safety of surgery.

[0020] 5. The use of endoscope can assist observation and improve the accuracy of use.

[0021] 6. The overall structure is simple, easy to manufacture and use.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the overall structure of the bone vertebral plate drilling device suitable for spinal surgery.

[0024] Figure 2 The present invention is a schematic diagram of the internal structure of a bone vertebral plate drilling device suitable for spinal surgery.

[0025] Figure 3 It is a schematic diagram of the combination of the outer tube, the inner rod and the cross bar.

[0026] The meanings of the reference numerals in the drawings are as follows.

[0027] 1 Equipment body 2 Outer tube

[0028] 3 inner rod 4 cross rod

[0029] 5 Drill bit 6 Limit nut

[0030] 7 Endoscope 8 Displacement slot

[0031] 9 Working channel 10 Indicator rod

[0032] 11 Elastic component 12 Handle DETAILED DESCRIPTION

[0033] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] like Figures 1 to 3 The bone vertebral plate drilling device suitable for spinal surgery includes a device body 1, which is different in that: the device body 1 is provided with an outer tube 2, and an inner rod 3 is provided in the outer tube 2 for realizing bone (vertebral plate) control. At the same time, a cross bar 4 is movably provided on the inner rod 3, and both ends of the cross bar 4 are fixedly contacted with the outer tube 2. In this way, the inner rod 3 can be stably transmitted with a rotational torque through the outer tube 2. A drill bit 5 is provided at the lower end of the inner rod 3, and an indicator device is provided at the upper end of the inner rod 3, so as to know whether it is completed in time during the operation. Considering the convenience of operation, a force-applying device is provided at the upper end of the outer tube 2, and a limit nut 6 for limiting is provided outside the outer tube 2. At the same time, a forward clearance is provided between the limit nut 6 and the device body 1. In this way, accurate depth limiting can be achieved according to the actual depth. Furthermore, in order to effectively observe the current drilling state in real time, an endoscope 7 is installed on the device body 1.

[0035] In combination with a preferred embodiment of the utility model, in order to achieve appropriate forward displacement adjustment, a displacement groove 8 is provided on the inner rod 3, and the cross bar 4 is movably arranged in the displacement groove 8. Specifically, the displacement groove 8 is a vertically distributed long circular groove, which allows the cross bar 4 to slide in the groove displacement groove 8. Taking into account the convenience of installation and limiting, the inner wall of the outer tube 2 is provided with mirror-distributed positioning grooves, and the two ends of the cross bar 4 are embedded in the corresponding positioning grooves. In this way, the inner rod 3 can eventually have a certain displacement adjustment range. The upper top and lower bottom ends of the displacement groove 8 act as upper and lower limits for the cross bar 4. During implementation, as long as the shape of the cross bar 4 is adapted to allow it to have a certain amount of movable margin, the displacement groove 8 can be formed as needed. The long circular groove is only a more preferred solution.

[0036] Furthermore, in order to properly guide the forward path of the drill bit 5 and to achieve proper isolation from the external environment, a working channel 9 extends from the lower end of the device body 1, and the drill bit 5 extends outward from the working channel 9.

[0037] At the same time, in order to conveniently indicate whether the current drill bit 5 has drilled into place, the indicator device used includes an indicator rod 10 connected to the inner rod 3. Specifically, a load-bearing step is provided at the bottom of the indicator rod 10, and an elastic component 11 is sleeved on the indicator rod 10, and the bottom of the elastic component 11 is in contact with the load-bearing step. In this way, when drilling begins, the drill bit 5 presses against the bone vertebral plate to compress the elastic component 11, and the cross bar 4 also rises to the top in the displacement groove 8. As a result, the indicator rod 10 rises to the highest point. Then, at the moment of successful drilling, the drill bit 5 loses the supporting force of the bone (vertebral plate), and the elastic component 11 will quickly push the cross bar 4 down to the bottom of the displacement groove 8, and also move the indicator rod 10 down a certain distance to indicate completion. Considering the convenience of use, the elastic component 11 is a spring or a shrapnel.

[0038] Looking further, the force-applying device used is a handle 12, and the handle 12 is a crossbar structure. In this way, the user can more conveniently implement force application with one hand or by holding with both hands. The forward movement of the drill bit 5 can be controlled by rotating the handle 12, which is convenient to operate. During the implementation, a motor can also be used to constitute the force-applying device. In this way, drilling is achieved by driving the motor. At the same time, when the drilling is completed, the indicator rod 10 can contact the stop switch of the motor to perform stop control. Of course, a travel switch can also be directly added to the motor to complete the quantitative drilling forward setting.

[0039] The working principle of the utility model is as follows:

[0040] The device is installed by an external manipulator, and after reaching the drilling position, the handle 12 is started to rotate.

[0041] As the handle 12 rotates, the outer tube 2 drives the inner rod 3 to rotate via the crossbar 4. Then, the drill bit 5 rotates synchronously.

[0042] During this period, the drill bit 5 can lift the indicator rod 10 upward to a certain height through the cross bar 4. When the bone (vertebral plate) is drilled through, the elastic component 11 pushes the indicator rod 10 downward to a certain distance. In addition, the forward distance of the outer tube 2 is restricted by the limit nut 6. Even if there is an abnormal operation, it can effectively prevent the drill bit 5 from further moving forward into the spinal canal to damage the nerves, thereby achieving auxiliary limit to ensure the safety of the operation.

[0043] Finally, the user can cooperate with the endoscope 7 according to the position of the indicator rod 10 to drill through the bone lamina safely and open a bone hole.

[0044] It can be seen from the above text description and the accompanying drawings that the following advantages are achieved after adopting the utility model:

[0045] 1. Whether the drilling is completed can be directly observed through the indicator rod, which is convenient for controlling the drilling depth.

[0046] 2. The cross bar has an appropriate displacement adjustment gap through the cooperation of the displacement groove set on the inner rod to meet the control of drilling depth and observation of whether it is completed.

[0047] 3. The use of a limit nut can limit the final drill bit path distance to prevent the drill bit from moving too deep.

[0048] 4. It can realize convenient operation and ensure the safety of surgery.

[0049] 5. The use of endoscope can assist observation and improve the accuracy of use.

[0050] 6. The overall structure is simple, easy to manufacture and use.

[0051] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated with a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A bone lamina drilling device suitable for spinal surgery, comprising a device body, Features: The device body is provided with an outer tube, an inner rod is provided in the outer tube, a cross bar is movably provided on the inner rod, both ends of the cross bar are in fixed contact with the outer tube, a drill bit is provided at the lower end of the inner rod, an indicating device is provided at the upper end of the inner rod, a force-applying device is provided at the upper end of the outer tube, a limiting nut for limiting position is provided outside the outer tube, a forward clearance is provided between the limiting nut and the device body, and an endoscope is installed on the device body.

2. The vertebral lamina drilling device suitable for spinal surgery according to claim 1, Features: The inner rod is provided with a displacement groove, and the cross bar is movably arranged in the displacement groove.

3. The vertebral lamina drilling device suitable for spinal surgery according to claim 2, Features: The displacement grooves are vertically distributed long circular grooves.

4. The bone lamina drilling device suitable for spinal surgery according to claim 1, Features: The inner wall of the outer tube is provided with positioning grooves distributed in a mirror image, and the two ends of the cross bar are embedded in the corresponding positioning grooves.

5. The vertebral lamina drilling device suitable for spinal surgery according to claim 1, Features: A working channel extends from the lower end of the equipment body, and the drill bit extends outward from the working channel.

6. The vertebral lamina drilling device suitable for spinal surgery according to claim 1, Features: The indicating device comprises an indicating rod connected to the inner rod, a bearing step is arranged at the bottom of the indicating rod, an elastic component is sleeved on the indicating rod, and the bottom of the elastic component is in contact with the bearing step.

7. The bone lamina drilling device suitable for spinal surgery according to claim 6, Features: The elastic component is a spring or a spring.

8. The bone lamina drilling device suitable for spinal surgery according to claim 1, Features: The force applying device is a handle, and the handle is a crossbar structure.

Images