A retractable self-limiting decompression orthopedic power surgical device for spinal surgery

Abstract

The present invention relates to a retractable self-limiting decompression orthopedic power surgical device for spinal surgery, which includes a device body. A fixed seat is arranged at the upper end of the device body, and a connecting mechanism is arranged at the lower end of the device body. A separation and retraction device is installed on the fixed seat, and a guiding device is also connected to the fixed seat. An orthopedic power device is connected to the guiding device, and a connecting plate extends outside the guiding device. The separation and retraction device includes a motor connected to the fixed seat, an electromagnet is arranged on the shaft of the motor, the electromagnet is connected to the guiding device through the connecting plate, and a guiding device is arranged between the connecting plate and the fixed seat. Thus, by controlling the circuit of the electromagnet and the operation of the motor through a travel switch, relying on the outer surface structure of the bone, the cutter bar of the orthopedic power device can instantaneously and rapidly retract and rise when breaking through the inner surface of the bone, avoiding the cutter bar of the orthopedic power device from touching important tissues such as nerves and ensuring safety.

Description

Technical Field

[0001] The invention relates to a surgical device, in particular to a retractable self-limiting decompression orthopedic power surgical device for spinal surgery. Background Art

[0002] In recent years, the field of spinal surgery has achieved rapid development, and a variety of surgical methods are used to treat different spinal diseases, including open and anterior spinal surgery, posterior spinal surgery, and combined anterior and posterior surgery.

[0003] Taking the surgery for herniated disc as an example, its treatment will usher in a major change in a century, and the method will also undergo a subversive change: literature reports that artificial double-opening spinal enlargement and plasty (CMEL) can widely "induce" the natural absorption (RHNP) phenomenon of herniated disc, with an absorption ratio of up to 81.3% and a maximum absorption rate of 100%. The model that mainly uses "resection" of herniated disc as the treatment method will enter a model that mainly uses "retention" of herniated disc to allow it to be absorbed naturally.

[0004] Despite these changes in surgical methods, no matter which surgical method is used, removing nerve compressors such as herniated discs, osteophytes, and hypertrophic ligaments, that is, opening a bone groove or opening a bone window for decompression, is still the key. Currently, the main methods for decompression of bone grooves or bone windows are as follows:

[0005] 1. Manual method: There are problems such as large incision, possible surgical error and high risk.

[0006] 2. Orthopedic power system: handheld operation, low safety.

[0007] 3. Spinal surgery robots: They have been successfully applied in clinical practice, including Israel's Mazor spinal assistant robot, South Korea's SPINEBOT spinal robot, the United States' Mazor X spinal hand T image registration robot, and my country's Tianji spinal surgery robot. However, they basically use intraoperative X-ray images and preoperative C-position for positioning and can only be used for pedicle screw placement. They have very simple functions and cannot meet the decompression requirements of opening bone grooves or bone windows in the CMEL procedure.

[0008] In view of the above-mentioned defects, the designer has actively carried out research and innovation in order to create a retractable self-limiting decompression orthopedic power surgery device for spinal surgery, making it more valuable for industrial use. Summary of the invention

[0009] In order to solve the above technical problems, the purpose of the present invention is to provide a retractable self-limiting decompression orthopedic power surgery device for spinal surgery.

[0010] A retractable self-limiting decompression orthopedic power surgical device for spinal surgery of the present invention includes a device body, wherein: a fixed seat is arranged at the upper end of the device body, a connecting mechanism is arranged at the lower end of the device body, a separation and retraction device is installed on the fixed seat, a guiding device is also connected to the fixed seat, an orthopedic power device is connected to the guiding device, a connecting plate extends outside the guiding device, the separation and retraction device includes a motor connected to the fixed seat, an electromagnet is arranged on the shaft of the motor, the electromagnet is connected to the guiding device through the connecting plate, and a guiding device is arranged between the connecting plate and the fixed seat.

[0011] Further, in the above-mentioned retractable self-limiting decompression orthopedic power surgical device for spinal surgery, the guiding device includes a guiding tube, a limiting ring is arranged inside the guiding tube, one side of the limiting ring is exposed outside the guiding tube, a travel switch is installed on the exposed part, auxiliary springs are distributed on the limiting ring, and the orthopedic power device is connected to the auxiliary springs.

[0012] Still further, in the above-mentioned retractable self-limiting decompression orthopedic power surgical device for spinal surgery, a plug cover is arranged at the upper end of the guiding tube.

[0013] Still further, in the above-mentioned retractable self-limiting decompression orthopedic power surgical device for spinal surgery, the orthopedic power device includes a driving assembly, a tool bar is arranged on the driving assembly, and an ultrasonic bone knife is connected to the tool bar; or, a grinding drill is connected to the tool bar.

[0014] Still further, in the above-mentioned retractable self-limiting decompression orthopedic power surgical device for spinal surgery, an inner channel tube is sleeved at the end of the tool bar.

[0015] Even further, in the above-mentioned retractable self-limiting decompression orthopedic power surgical device for spinal surgery, the guiding device includes a pair of main guiding columns and auxiliary guiding columns distributed in pairs, and main springs and auxiliary springs are respectively sleeved on the main guiding columns and the auxiliary guiding columns.

[0016] By means of the above solution, the present invention has at least the following advantages:

[0017] 1. By controlling the circuit of the electromagnet and the operation of the motor through the travel switch, relying on the outer surface structure of the bone, the tool bar of the orthopedic power device can quickly retract and rise instantaneously when breaking through the inner surface of the bone, avoiding the tool bar of the orthopedic power device from touching important tissues such as nerves and ensuring safety.

[0018] 2. The motor drives the tool bar of the orthopedic power device to descend, realizing the decompression operation of creating a bone slot or a bone window. At the moment of breaking through the inner surface of the bone (cutting through the bone), the auxiliary spring installed in the guide tube can disconnect the travel switch, cut off the power supply of the electromagnet, and realize the rapid separation of the connection plate and the electromagnet.

[0019] 3. During the separation period of the connection plate and the electromagnet, the main and auxiliary springs quickly push up the connection plate with the connection plate, causing the tool bar of the orthopedic power device to rise rapidly, realizing self-limitation, accurately controlling the position of the tool bar of the orthopedic power device, and ensuring that the distance of the tool bar breaking through the inner surface of the bone is within a safe range.

[0020] 4. The overall structure is simple, safe and reliable, and is convenient for manufacturing and use.

[0021] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and combines the accompanying drawings to describe in detail as follows. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the retractable self-limiting decompression orthopedic power surgical device for spinal surgery.

[0023] Figure 2 It is a schematic sectional view of the use of the retractable self-limiting decompression orthopedic power surgical device for spinal surgery.

[0024] The meanings of the reference numerals in the drawings are as follows.

[0025] 1 Fixed seat 2 Connecting mechanism

[0026] 3 Separation and retraction device 4 Orthopedic power device

[0027] 5 Connection plate 6 Motor

[0028] 7 Electromagnet 8 Guide tube

[0029] 9 Limit ring 10 Travel switch

[0030] 11 Auxiliary spring 12 Tool bar

[0031] 13 Inner channel cylinder 14 Main guide post

[0032] 15 Main spring 16 Plug

[0033] 17 Bone tissue Detailed Description of the Preferred Embodiments

[0034] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0035] Such as Figures 1 to 2 The retractable self-limiting decompression orthopedic power surgical device for spinal surgery of the present invention includes a device body. What makes it different is that a fixed seat 1 is provided at the upper end of the device body, and a connecting mechanism 2 is provided at the lower end of the device body, which is convenient for docking with the corresponding surgical robot. During actual implementation, the connecting mechanism 2 can be a connecting plate, and locking bolts are provided on the connecting plate.

[0036] At the same time, in order to meet decompression operations such as bone slot opening or bone window opening during surgery, a separation and retraction device 3 is installed on the fixed seat 1. And, in order to meet smooth load-bearing guidance, a guiding device is also connected to the fixed seat 1, an orthopedic power device 4 is connected to the guiding device, and a connecting plate 5 extends outside the guiding device. From the perspective of actual assembly, the separation and retraction device 3 includes a motor 6 connected to the fixed seat 1, an electromagnet 7 is provided on the shaft of the motor 6, and the electromagnet 7 is connected to the guiding device through the connecting plate 5. Furthermore, a guiding device is provided between the connecting plate 5 and the fixed seat 1.

[0037] In combination with a preferred embodiment of the present invention, in order to realize the working guidance of the orthopedic power device 4 and achieve proper positioning, the guiding device adopted includes a guiding tube 8, and a limiting ring 9 is arranged inside the guiding tube 8. In this way, the orthopedic power device 4 can be limited to avoid unnecessary shaking.

[0038] Specifically, one side of the limiting ring 9 is exposed outside the guiding tube 8, and a travel switch 10 is installed on the exposed part. At the same time, auxiliary springs 11 are distributed on the limiting ring 9, and the orthopedic power device 4 is connected to the auxiliary springs 11. And, a plug cover 16 is provided at the upper end of the guiding tube 8, which can prevent external foreign objects from invading the guiding tube 8.

[0039] Furthermore, the orthopedic power device 4 adopted in the present invention includes a driving assembly, a tool bar 12 is provided on the driving assembly, and an ultrasonic bone knife is connected to the tool bar 12. Of course, considering different surgical operation requirements, a grinding drill can also be connected to the tool bar 12. At the same time, in order to better conduct actual movement guidance, an inner channel cylinder 13 can also be sleeved at the end of the tool bar 12.

[0040] Looking further, the guiding device adopted includes a pair of main guiding columns 14 and auxiliary guiding columns distributed. Main springs 15 and auxiliary springs are respectively sleeved on the main guiding column 14 and the auxiliary guiding column. (The auxiliary guiding column and the auxiliary spring are blocked in the attached drawings and not shown.) In this way, the orthopedic power device 4 can rise rapidly in the separated state. At the same time, through the mutual cooperation of the main spring 15 and the auxiliary spring, appropriate buffering can be achieved, and unnecessary vibration can be avoided, improving the stability of the robot operation.

[0041] The working principle of the present invention is as follows:

[0042] When the device is started, the motor 6 starts to work. During this period, the guiding device and the connecting plate 5 are driven to descend by the adsorption of the electromagnet 7. The tool bar 12 of the orthopedic power device 4 abuts against the outer surface of the bone tissue 17, and the auxiliary spring 11 is compressed, causing the limit ring 9 to rise relatively by a small distance to form a safety distance. At this time, the travel switch 10 is turned on, and the work of the orthopedic power device 4 is started to be controlled.

[0043] Then, the motor 6 continues to drive the tool bar 12 of the orthopedic power device 4 to descend, break through the inner surface of the bone (i.e., cut through the bone tissue 17), and realize the decompression operation of opening a bone groove or a bone window. And, at the moment when the tool bar 12 of the orthopedic power device 4 cuts through the bone tissue 17, the auxiliary spring 11 located in the guiding device pops the orthopedic power device 4 and the tool bar 12 downward, and the travel switch 10 is disconnected, causing the electromagnet 7 to lose power and magnetism. At the same time, the main spring 15 and the auxiliary spring quickly push up the connecting plate 5 and the guiding tube 8, and the tool bar 12 of the orthopedic power device 4 rises rapidly to achieve self-limitation. In this way, it can be avoided that the orthopedic power device 4 and the tool bar 12 touch the nerve during the operation due to excessive forward movement, ensuring the operation safety.

[0044] It can be seen from the above text description and in combination with the attached drawings that after adopting the present invention, the following advantages are possessed:

[0045] 1. By controlling the circuit of the electromagnet and the operation of the motor through the travel switch, relying on the outer surface structure of the bone, the tool bar of the orthopedic power device can quickly retract and rise instantaneously when breaking through the inner surface of the bone, avoiding the tool bar of the orthopedic power device from touching important tissues such as nerves and ensuring safety.

[0046] 2. The motor drives the tool bar of the orthopedic power device to descend to realize the decompression operation of opening a bone groove or a bone window. At the moment of breaking through the inner surface of the bone (cutting through the bone), the auxiliary spring installed in the guiding tube can disconnect the travel switch, cause the electromagnet to lose power, and realize the separation of the connecting plate and the electromagnet.

[0047] 3. During the separation period, the main and auxiliary springs quickly push up the connecting plate, causing the orthopedic power device to rise rapidly, achieving self-limitation, precisely controlling the position of the tool bar of the orthopedic power device, and ensuring that the distance at which the tool bar breaks through the inner surface of the bone is within a safe range.

[0048] 4. The overall structure is simple, safe and reliable, and is convenient for manufacturing and use.

[0049] In addition, the orientation or positional relationship described in the present invention is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or structure referred to must have a specific orientation, or be operated in a specific orientation structure, so it cannot be understood as a limitation of the present invention.

[0050] The terms "main" and "auxiliary" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "main" and "auxiliary" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0051] Similarly, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. And it can be directly on another component or indirectly on that another component. When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0053] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0054] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A retractable self-limiting decompression orthopedic power surgical device for spinal surgery, comprising a device body, Characterized in that: A fixed seat is provided at the upper end of the device body, a connecting mechanism is provided at the lower end of the device body, a separation and retraction device is installed on the fixed seat, a guiding device is also connected to the fixed seat, an orthopedic power device is connected to the guiding device, an adapter plate extends outside the guiding device, the separation and retraction device includes a motor connected to the fixed seat, an electromagnet is provided on the shaft of the motor, the electromagnet is connected to the guiding device through the adapter plate, and a guiding device is provided between the adapter plate and the fixed seat; The guiding device includes a guiding tube, a limiting ring is arranged inside the guiding tube, one side of the limiting ring is exposed outside the guiding tube, a travel switch is installed on the exposed part, auxiliary springs are distributed on the limiting ring, and the orthopedic power device is connected to the auxiliary springs; the orthopedic power device includes a driving component, a cutter bar is arranged on the driving component, and an ultrasonic osteotome is connected to the cutter bar; Or, a burr is connected to the cutter bar; the guiding device includes a pair of main guiding columns and auxiliary guiding columns distributed in pairs, and a main spring and an auxiliary spring are respectively sleeved on the main guiding column and the auxiliary guiding column; After the device body is started, the motor starts to work, drives the guiding device and the adapter plate to descend together through the adsorption of the electromagnet, the cutter bar of the orthopedic power device abuts against the outer surface of the bone tissue, the auxiliary spring is compressed, and the limiting ring rises relatively to generate a small distance to form a safety distance. At this time, the travel switch is turned on, and the work of the orthopedic power device is started to be controlled. The motor continues to drive the cutter bar of the orthopedic power device to descend, break through the inner surface of the bone, and realize the decompression operation of opening a bone groove or a bone window; At the moment when the cutter bar of the orthopedic power device cuts through the bone tissue, the auxiliary spring located inside the guiding device ejects the orthopedic power device and the cutter bar downward, and the travel switch is turned off, so that the electromagnet loses power and loses magnetism; the main spring and the auxiliary spring quickly push up the adapter plate and the guiding tube, and the cutter bar of the orthopedic power device quickly rises, realizing self-limitation, and avoiding the orthopedic power device and the cutter bar from touching the nerve due to excessive forward movement during the operation.

2. A retractable self-limiting decompression orthopedic power surgical device for spinal surgery according to claim 1, Characterized in that: A plug cover is provided at the upper end of the guiding tube.

3. A retractable self-limiting decompression orthopedic power surgical device for spinal surgery according to claim 1, Characterized in that: An inner channel cylinder is sleeved at the end of the cutter bar.

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