Cerebral periosteum detacher for neurosurgery department

Abstract

The invention provides a cerebral periosteum detacher for the neurosurgery department, and belongs to the technical field of medical instruments. Comprising a grab handle, connecting rods are fixedly connected to the two ends of the grab handle correspondingly, stripping mechanisms are arranged at the ends, away from the grab handle, of the connecting rods correspondingly, the two stripping mechanisms are different in size, annular grooves are formed in the surfaces of the connecting rods correspondingly, and air bags are connected to the interiors of the annular grooves in a surrounding mode; an air bag is arranged on the handle, a ventilation mechanism is arranged on the handle, the air conveying end of the ventilation mechanism is connected with an air port of the air bag, and the ventilation mechanism can convey air into the air bag or extract air in the air bag. The skin of the surgical site of a patient is cut, the stripping mechanism is inserted into the surgical site through the incision, the air bag is inflated through the ventilation mechanism, the soft tissue at the incision can be expanded by expanding the air bag, and therefore the skeleton is leaked out, and the stripping mechanism can strip the periosteum conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and more particularly to a neurosurgery periosteal stripper. Background Art

[0002] Periosteum stripper, also known as periosteal stripper, is a commonly used medical device. Periosteum is a connective tissue that surrounds the backbone, and muscles are attached to the backbone through the periosteum. Orthopedic surgery is basically performed on the bone surface. Only by stripping the periosteum attached to the bone surface can the site where surgery is required be revealed. In brain surgery, such as meningioma, skull lesions and other surgeries, the periosteum needs to be stripped from the skull surface to reveal the surgical field of view. The brain periosteal stripper is mainly used to strip the periosteum in brain surgery. The use of the brain periosteal stripper can strip the periosteum more accurately, reduce damage to brain tissue, and improve the safety and effectiveness of the operation.

[0003] The existing periosteal elevator has a simple structure and is usually composed of a handle and a blade. The blade of the periosteal elevator is usually flat or curved, with a sharp cutting edge, which can easily cut and peel the periosteum. The periosteal elevator has different models and sizes, and can be selected according to different needs;

[0004] When cutting the periosteum, the existing periosteal stripper needs to first remove the soft tissue of the surgical site to expose the bone site to be treated, and then insert the periosteal stripper into the lower layer of the periosteum and strip along the bone surface. Therefore, during the periosteal stripping process, the doctor needs to keep pulling up the soft tissue, which will increase the doctor's physical exertion during the operation, affect the safety of the operation, and make it inconvenient for the doctor to operate. Therefore, a neurosurgery periosteal stripper is proposed. Summary of the invention

[0005] In view of the problem that when a periosteal stripper in the prior art cuts the periosteum, it is necessary to first remove the soft tissue of the surgical site to expose the bone site to be treated. Therefore, the doctor needs to keep pulling up the soft tissue, which increases the doctor's physical exertion during the operation and affects the safety of the operation. The purpose of the present invention is to provide a neurosurgery periosteal stripper.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A neurosurgery periosteal stripper comprises a handle, both ends of the handle are fixedly connected to connecting rods, and the ends of the connecting rods away from the handles are provided with stripping mechanisms, and the sizes of the two sets of stripping mechanisms are different. The surfaces of the connecting rods are provided with annular grooves, and the inside of the annular grooves is surrounded by an air bag;

[0008] The handle is provided with a ventilation mechanism, the air supply end of which is connected to the air port of the airbag. The ventilation mechanism can supply gas into the airbag or extract the gas from the airbag. When the airbag is inflated, the soft tissue at the surgical site can be expanded to allow the bone to leak out.

[0009] Optionally, the ventilation mechanism includes a connecting tube and a telescopic bag, the handle is thin in the middle and thick at both ends, and two groups of the connecting tube and the telescopic bag are provided. The two groups of telescopic bags are arranged on both sides of the middle part of the handle, and the telescopic bags and the airbags on the same side are connected through the connecting tube. A magnetic ring is arranged in the middle part of the handle, and the magnetic ring is located between the two groups of telescopic bags. U-shaped plates are fixedly connected to both sides of the outer surface of the magnetic ring, and an electromagnet is fixedly embedded inside the handle.

[0010] Optionally, a return spring is arranged inside the telescopic bag, and the return spring is sleeved on the outer surface of the middle part of the handle, one end of the return spring abuts against the end of the handle, and the other end of the return spring abuts against the end of the U-shaped plate.

[0011] Optionally, the connecting rod and the handle are both provided with preset grooves, and the connecting tube is fixedly embedded in the preset grooves.

[0012] Optionally, an annular groove is provided inside the connecting rod, and the side of the annular groove close to the annular groove is set to be an opening, an adjustment cover is provided inside the annular groove, an electric push rod is fixedly installed inside the annular groove, the telescopic end of the electric push rod is fixedly connected to the adjustment cover, and the electric push rod can drive the adjustment cover to move to the surface of the airbag.

[0013] Optionally, the telescopic direction of the electric push rod is parallel to the axes of the annular groove and the annular slide groove.

[0014] Optionally, the interior of the connecting rod is configured to be hollow, and one end of the connecting rod away from the handle is configured to be open, and the stripping mechanism can be accommodated inside the connecting rod.

[0015] Optionally, the peeling mechanism includes a blade, a connecting head, a round rod, a telescopic spring and a push plate. The size of the blade is smaller than the inner diameter of the connecting rod. One end of the connecting head is fixedly connected to the blade, and the other end of the connecting head is fixedly connected to the round rod. The other end of the round rod extends to one side of the handle and is provided with a control end, which is used to adjust the position of the blade.

[0016] Optionally, the control end includes a push plate sleeved on the outer surface of the handle, the push plate is arranged in an annular shape, a cross plate is fixedly connected to the inside of the push plate, a through groove matched with the cross plate is opened on the surface of the handle, the cross plate is installed in cooperation with the inside of the through groove, one end of the round rod passes through the side wall of the handle to the inside of the through groove, and the round rod is fixedly connected to the cross plate, a limit rod is inserted in the radial direction of the outer surface of the push plate, a limit groove matched with the limit rod is opened on the surface of the handle, when the limit rod is inserted in the limit groove, the blade is located outside the connecting rod, a positioning spring is sleeved on the surface of the limit rod, one end of the positioning spring is fixedly connected to the end of the limit rod, and the other end of the positioning spring is fixedly connected to the outer surface of the push plate.

[0017] Optionally, a telescopic spring is sleeved on the surface of the round rod, one end of the telescopic spring is fixedly connected to the inner surface of the connecting rod, and the other end of the telescopic spring is fixedly connected to the connecting head. When the telescopic spring is in a natural state, the blade is located inside the connecting rod.

[0018] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects:

[0019] In the above scheme, by setting up an air bag and a ventilation mechanism for use in conjunction, before peeling the periosteum, the user first cuts the skin of the patient's surgical site, inserts the peeling mechanism into the surgical site through the incision, and uses the ventilation mechanism to inflate the air bag. The air bag expands to open the soft tissue at the incision, thereby allowing the bone to leak out, so that the peeling mechanism can peel the periosteum. Therefore, the doctor does not need to open the soft tissue for a long time, which reduces the doctor's physical exertion and facilitates the doctor's operation.

[0020] By setting the electric push rod and the adjustment cover to cooperate with each other, when the periosteal stripper is not in use, the electric push rod is driven to extend, so that the adjustment cover moves to the surface of the airbag, ensuring that when the periosteal stripper is stored together with other surgical tools, the airbag will not be damaged by other equipment, thereby protecting the airbag;

[0021] The inside of the connecting rod is set to be hollow, and the end of the connecting rod away from the handle is set to be open, so that the blade can be stored in the connecting rod, so that the blade can be protected when the periosteal stripper is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic cross-sectional structure diagram of ;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the part;

[0026] Figure 4 For the present invention Figure 2 Schematic diagram of the partial structure of the middle handle;

[0027] Figure 5 For the present invention Figure 2 The enlarged view of point A in the middle;

[0028] Figure 6 For the present invention Figure 3 The enlarged view of point B in the middle;

[0029] Figure 7 It is a schematic diagram of the push plate, round rod and limit rod structures of the present invention.

[0030] [Reference Signs]

[0031] 1. Handle; 2. Connecting rod;

[0032] 3. Peeling mechanism; 31. Blade; 32. Connector; 33. Round rod; 34. Telescopic spring; 35. Push plate; 36. Limit rod; 37. Positioning spring; 38. Limit groove; 39. Through groove.

[0033] 4. Airbag;

[0034] 5. Ventilation mechanism; 51. Connecting pipe; 52. Telescopic bag; 53. Return spring; 54. U-shaped plate; 55. Electromagnet; 56. Magnetic ring;

[0035] 6. Electric push rod; 7. Adjustment cover; 8. Slide slot.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of a neurosurgery periosteal stripper provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0042] like Figures 1 to 7 As shown, an embodiment of the present invention provides a neurosurgery periosteal stripper, including a handle 1, both ends of the handle 1 are fixedly connected with connecting rods 2, and the connecting rods 2 are provided with stripping mechanisms 3 at one end away from the handle 1, and the two groups of stripping mechanisms 3 have different sizes. The surface of the connecting rod 2 is provided with an annular groove, and the inside of the annular groove is surrounded by an air bag 4.

[0043] The handle 1 is provided with a ventilation mechanism 5, the air supply end of the ventilation mechanism 5 is connected to the air port of the airbag 4, the ventilation mechanism 5 can supply gas to the inside of the airbag 4 or extract the gas inside the airbag 4, and when the airbag 4 is expanded, the soft tissue of the surgical site can be expanded to allow the bone to leak out.

[0044] The handle 1, the connecting rod 2 and the stripping mechanism 3 are all made of stainless steel or other corrosion-resistant materials, and are suitable for long-term use in a medical environment. In addition, a rubber soft cover can be provided on the surface of the handle 1 to provide a more comfortable grip.

[0045] By setting up the airbag 4 for use with the ventilation mechanism 5, the user first cuts the skin of the patient's surgical site before peeling the periosteum, inserts the peeling mechanism 3 into the surgical site through the incision, and uses the ventilation mechanism 5 to inflate the airbag 4. The expansion of the airbag 4 can expand the soft tissue at the incision, thereby allowing the bone to leak out, making it easier for the peeling mechanism 3 to peel the periosteum. Therefore, the doctor does not need to expand the soft tissue for a long time, reducing the doctor's physical exertion.

[0046] The shapes and sizes of the two sets of stripping mechanisms 3 can be set according to the requirements of the periosteal surgery.

[0047] The ventilation mechanism 5 includes a connecting tube 51 and a telescopic bag 52. The handle 1 is thin in the middle and thick at both ends. There are two groups of connecting tubes 51 and telescopic bags 52. The two groups of telescopic bags 52 are sleeved on both sides of the middle part of the handle 1. The telescopic bags 52 and the airbag 4 on the same side are connected through the connecting tube 51. A magnetic ring 56 is sleeved in the middle part of the handle 1. The magnetic ring 56 is located between the two groups of telescopic bags 52. U-shaped plates 54 are fixedly connected to both sides of the outer surface of the magnetic ring 56. An electromagnet 55 is fixedly embedded inside the handle 1.

[0048] A return spring 53 is disposed inside the telescopic bag 52 . The return spring 53 is sleeved on the outer surface of the middle part of the handle 1 . One end of the return spring 53 abuts against the end of the handle 1 , and the other end of the return spring 53 abuts against the end of the U-shaped plate 54 .

[0049] The connection rod 2 and the handle 1 are both provided with preset grooves, and the connection pipe 51 is fixedly embedded in the preset grooves.

[0050] The specific operation of the ventilation mechanism 5 to inflate the airbag 4 is as follows: the user holds the U-shaped plate 54 and moves the U-shaped plate 54 and the magnetic ring 56 to the side of the peeling mechanism 3 in use, and the U-shaped plate 54 and the magnetic ring 56 can press the telescopic bag 52 corresponding to the peeling mechanism 3, and the gas inside the telescopic bag 52 can be transported to the inside of the airbag 4 through the connecting tube 51, so that the airbag 4 expands, thereby expanding the soft tissue of the surgical site. In addition, by setting the electromagnet 55 and the magnetic ring 56 for use in conjunction, a corresponding battery assembly can be set on the surface of the handle 1 to provide power for the electromagnet 55. In addition, A button is also required to be provided on the surface of the handle 1. By pressing the button, the power of the electromagnet 55 can be turned on, and the electromagnet 55 can absorb the magnetic ring 56 to fix the magnetic ring 56 and the U-shaped plate 54, so that the telescopic bag 52 remains compressed and the airbag 4 remains expanded, thereby maintaining support for the soft tissue; in addition, by providing a reset spring 53, when the telescopic bag 52 is compressed, the reset spring 53 is compressed at the same time. After use, the button is pressed again to switch the power of the electromagnet 55, so that the electromagnet 55 no longer absorbs the magnetic ring 56, and the compressed reset spring 53 is reset, driving the telescopic bag 52 and the airbag 4 to reset.

[0051] An annular slide groove 8 is provided inside the connecting rod 2, and the side of the annular slide groove 8 close to the annular groove is set to be open. An adjustment cover 7 is provided inside the annular slide groove 8. An electric push rod 6 is fixedly installed inside the annular slide groove 8. The telescopic end of the electric push rod 6 is fixedly connected to the adjustment cover 7. The electric push rod 6 can drive the adjustment cover 7 to move to the surface of the airbag 4.

[0052] The telescopic direction of the electric push rod 6 is parallel to the axis of the annular groove and the annular slide groove 8 .

[0053] By setting the electric push rod 6 and the adjustment cover 7 for use together, when the periosteal stripper is not in use, the electric push rod 6 is driven to extend to move the adjustment cover 7 to the surface of the airbag 4, ensuring that when the periosteal stripper is stored together with other surgical instruments, the airbag 4 will not be damaged by other equipment, thereby protecting the airbag 4.

[0054] It should be noted that the electric push rod 6 can be used in conjunction with a controller. The controller can control when the electric push rod 6 is extended and the length of the extension. The switch button of the controller can be set on the surface of the handle 1. Pressing the button can control the movement of the electric push rod 6. The controller can select a single-chip microcomputer as a control. The single-chip microcomputer is composed of an arithmetic unit, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption. There is no requirement for the model of the single-chip microcomputer.

[0055] The interior of the connecting rod 2 is configured to be hollow, and one end of the connecting rod 2 away from the handle 1 is configured to be open, and the peeling mechanism 3 can be accommodated inside the connecting rod 2 .

[0056] The peeling mechanism 3 includes a blade 31, a connecting head 32, a round rod 33, a telescopic spring 34 and a push plate 35. The size of the blade 31 is smaller than the inner diameter of the connecting rod 2. One end of the connecting head 32 is fixedly connected to the blade 31, and the other end of the connecting head 32 is fixedly connected to the round rod 33. The other end of the round rod 33 extends to one side of the handle 1 and is provided with a control end, which is used to adjust the position of the blade 31.

[0057] The control end includes a push plate 35 sleeved on the outer surface of the handle 1, the push plate 35 is arranged in a ring shape, a cross plate is fixedly connected inside the push plate 35, a through groove 39 adapted to the cross plate is opened on the surface of the handle 1, and the cross plate is installed in cooperation inside the through groove 39, one end of the round rod 33 passes through the side wall of the handle 1 to the inside of the through groove 39, and the round rod 33 is fixedly connected to the cross plate, a limit rod 36 is inserted in the radial direction of the outer surface of the push plate 35, a limit groove 38 adapted to the limit rod 36 is opened on the surface of the handle 1, when the limit rod 36 is inserted in the limit groove 38, the blade 31 is located outside the connecting rod 2, a positioning spring 37 is sleeved on the surface of the limit rod 36, one end of the positioning spring 37 is fixedly connected to the end of the limit rod 36, and the other end of the positioning spring 37 is fixedly connected to the outer surface of the push plate 35.

[0058] A telescopic spring 34 is sleeved on the surface of the round rod 33 , one end of the telescopic spring 34 is fixedly connected to the inner surface of the connecting rod 2 , and the other end of the telescopic spring 34 is fixedly connected to the connecting head 32 . When the telescopic spring 34 is in a natural state, the blade 31 is located inside the connecting rod 2 .

[0059] When the periosteal stripper is not in use, the blade 31 can be moved to the inside of the connecting rod 2 for storage, thereby protecting the blade 31. When in use, the blade 31 is moved out of the inside of the connecting rod 2 and the position of the blade 31 is fixed. Specifically, the user moves the push plate 35 to drive the cross plate, the round rod 33, the connecting head 32 and the blade 31 to move. When the blade 31 is completely moved out of the inside of the connecting rod 2, the limiting rod 36 is aligned with the limiting groove 38, and the limiting rod 36 is inserted into the limiting groove 38, so that the positions of the blade 31, the connecting head 32, the round rod 33 and the push plate 35 can be fixed. In this process, the telescopic spring 34 on the outer surface of the round rod 33 is stretched. After use, the limiting rod 36 is pulled out of the limiting groove 38, and the stretched telescopic spring 34 is reset, thereby driving the blade 31, the connecting head 32, the round rod 33 and the push plate 35 to reset, and the blade 31 is moved to the inside of the connecting rod 2, so that the blade 31 can be stored. By providing the positioning spring 37 , the positioning spring 37 can press the limiting rod 36 against the inside of the limiting groove 38 , so that the limiting rod 36 can be stably inserted into the inside of the limiting groove 38 , thereby ensuring the stability of the blade 31 when in use.

[0060] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A neurosurgery periosteal stripper, comprising a handle, characterized in that: Both ends of the handle are fixedly connected to a connecting rod, and one end of the connecting rod away from the handle is provided with a peeling mechanism, and the two sets of peeling mechanisms have different sizes. The surface of the connecting rod is provided with an annular groove, and the inside of the annular groove is surrounded by an air bag; The handle is provided with a ventilation mechanism, the air supply end of which is connected to the air port of the airbag. The ventilation mechanism can supply gas into the airbag or extract the gas from the airbag. When the airbag is inflated, the soft tissue at the surgical site can be expanded to allow the bone to leak out.

2. The neurosurgery periosteal stripper according to claim 1, characterized in that: The ventilation mechanism includes a connecting tube and a telescopic bag. The handle is thin in the middle and thick at both ends. There are two groups of connecting tubes and telescopic bags. The two groups of telescopic bags are arranged on both sides of the middle part of the handle. The telescopic bags and airbags on the same side are connected through the connecting tube. A magnetic ring is arranged in the middle part of the handle, and the magnetic ring is located between the two groups of telescopic bags. U-shaped plates are fixedly connected to both sides of the outer surface of the magnetic ring, and an electromagnet is fixedly embedded inside the handle.

3. The neurosurgery periosteal stripper according to claim 2, characterized in that: A return spring is arranged inside the telescopic bag, and the return spring is sleeved on the outer surface of the middle part of the handle. One end of the return spring abuts against the end of the handle, and the other end of the return spring abuts against the end of the U-shaped plate.

4. The neurosurgery periosteal stripper according to claim 3, characterized in that: The connecting rod and the handle are both provided with preset grooves, and the connecting pipe is fixedly embedded in the preset grooves.

5. The neurosurgery periosteal stripper according to claim 4, characterized in that: An annular slide groove is provided inside the connecting rod, and a side of the annular slide groove close to the annular groove is set as an opening. An adjustment cover is provided inside the annular slide groove. An electric push rod is fixedly installed inside the annular slide groove. The telescopic end of the electric push rod is fixedly connected to the adjustment cover, and the electric push rod can drive the adjustment cover to move to the surface of the airbag.

6. The neurosurgery periosteal stripper according to claim 5, characterized in that: The telescopic direction of the electric push rod is parallel to the axis of the annular groove and the annular slide groove.

7. The neurosurgery periosteal stripper according to claim 1, characterized in that: The interior of the connecting rod is configured to be hollow, and the end of the connecting rod away from the handle is configured to be open, and the stripping mechanism can be accommodated inside the connecting rod.

8. The neurosurgery periosteal stripper according to claim 7, characterized in that: The peeling mechanisms include a blade, a connecting head, a round rod, a telescopic spring and a push plate. The size of the blade is smaller than the inner diameter of the connecting rod. One end of the connecting head is fixedly connected to the blade, and the other end of the connecting head is fixedly connected to the round rod. The other end of the round rod extends to one side of the handle and is provided with a control end, which is used to adjust the position of the blade.

9. The neurosurgery periosteal stripper according to claim 8, characterized in that: The control end includes a push plate sleeved on the outer surface of the handle, the push plate is arranged in a ring shape, a cross plate is fixedly connected inside the push plate, a through groove matched with the cross plate is opened on the surface of the handle, the cross plate is installed in cooperation inside the through groove, one end of the round rod passes through the side wall of the handle to the inside of the through groove, and the round rod is fixedly connected to the cross plate, a limit rod is inserted in the radial direction of the outer surface of the push plate, a limit groove matched with the limit rod is opened on the surface of the handle, when the limit rod is inserted in the limit groove, the blade is located outside the connecting rod, a positioning spring is sleeved on the surface of the limit rod, one end of the positioning spring is fixedly connected to the end of the limit rod, and the other end of the positioning spring is fixedly connected to the outer surface of the push plate.

10. The neurosurgery periosteal stripper according to claim 9, characterized in that: A telescopic spring is sleeved on the surface of the round rod, one end of the telescopic spring is fixedly connected to the inner surface of the connecting rod, and the other end of the telescopic spring is fixedly connected to the connecting head. When the telescopic spring is in a natural state, the blade is located inside the connecting rod.

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