A subcutaneous soft tissue separator applied in brain surgery and a method of using the same

Abstract

The application relates to the technical field of medical devices, in particular to a subcutaneous soft tissue separator applied to brain surgery and a use method thereof, which comprises a frame structure, clamping fixing pieces are arranged on the frame structure, driving assemblies are connected with a sliding plate, two groups of the driving assemblies can drive the sliding plate to make circular motion, a sliding folding assembly is arranged on the sliding plate and connected with the clamping fixing pieces, the sliding folding assembly can move along the length direction of the sliding plate and drive the clamping fixing pieces located on the side to move away from the plane where the sliding plate is located, a clamping assembly is arranged on the frame structure, the clamping assembly is used for fixing the head of a patient, an adjusting assembly is connected with the clamping assembly and the sliding plate, the adjusting assembly comprises a pushing structure and a screw transmission structure, the pushing structure is matched with the screw transmission structure, can drive the sliding folding assembly to move away from the head of the patient when the sliding plate makes circular motion, and can assist medical staff to perform surgery, reduce the difficulty of surgery, and improve the success rate of surgery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a subcutaneous soft tissue separator used in craniocerebral surgery and its method of use. Background Technology

[0002] There are many surgical procedures for brain surgery, and each procedure must be tailored to the specific condition. For the most common type, hypertensive intracerebral hemorrhage, the procedure is relatively simple and standardized. Generally, under general anesthesia, an incision is made along the outer hairline to separate the skin, subcutaneous soft tissue, and muscle, exposing the skull. A cranial drill is then used to make 3-4 holes. A milling cutter is then used to remove the entire skull flap, revealing the dura mater, which is then used for hemostasis and suspension.

[0003] When separating the skin and subcutaneous soft tissue, the length of the scalp being separated will increase as the separation progresses. At this point, in order for the surgeon to have a better surgical field of vision, the scalp needs to be pulled. The traditional approach is to have an assistant assist the surgeon by manually pulling the scalp to tighten it. This method requires the assistant and the surgeon to have a tacit understanding. When there is a deviation in the coordination, it will bring certain risks to the surgery.

[0004] Therefore, when separating the skin and subcutaneous soft tissue, it is necessary to use professional instruments for traction to improve the success rate of the surgery. However, since the patient's head is spherical, the traction length on both sides of the scalp needs to be greater than that in the middle when separating the scalp. Moreover, the existing traction device uses parallel traction, which causes the sides of the scalp being pulled to be in a relaxed state, which can easily affect the surgeon's surgical field of vision. Summary of the Invention

[0005] The purpose of this invention is to provide a subcutaneous soft tissue separator for use in craniocerebral surgery and its method of use, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A subcutaneous soft tissue separator for use in craniocerebral surgery, comprising:

[0008] The frame structure is provided with three sets of clamping and fixing components;

[0009] The drive components are symmetrically mounted on the frame structure and connected to the slide plate set on the frame structure. The two sets of drive components can drive the slide plate to perform circular motion.

[0010] A sliding retractable assembly is disposed on the slide plate and connected to the clamping and fixing member. The sliding retractable assembly is capable of moving along the length direction of the slide plate and driving the clamping and fixing member located on the side to move away from the plane on which the slide plate is located.

[0011] A clamping assembly is disposed on the frame structure, the clamping assembly being used to fix the patient's head;

[0012] An adjustment component connects the clamping component and the slide plate. The adjustment component includes a pushing structure and a threaded transmission structure. The pushing structure and the threaded transmission structure cooperate to drive the sliding retracting component away from the patient's head when the slide plate makes a circular motion.

[0013] As a further aspect of the present invention: the driving component includes a slide groove disposed on the frame structure, a slider slidably mounted in the slide groove, the slider being connected to an electric push rod fixed on the frame structure, and a horizontal axis perpendicular to the electric push rod being disposed on the slider, a guide structure being disposed on the horizontal axis, the two sets of guide structures being connected by a connecting rod, and the connecting rod being fixedly connected to the slide plate.

[0014] As a further embodiment of the present invention: the guide structure includes two arc-shaped plates symmetrically arranged on the frame structure, and the arc-shaped plates are provided with a first arc-shaped groove and a second arc-shaped groove, which are concentric.

[0015] The guide assembly further includes a sliding connector slidably mounted on the horizontal axis, the sliding connector being rotatably connected to the connecting rod, and a pulley fixed on the sliding connector, the pulley being able to roll within the first arc-shaped groove;

[0016] An extension shaft is also fixed to the sliding connector, and the extension shaft can slide within the second arc-shaped groove.

[0017] As a further embodiment of the present invention: the sliding retracting assembly includes a sliding part slidably disposed on the slide plate and guide shafts symmetrically disposed on both sides of the slide plate. Two deflecting rods are symmetrically rotatably mounted on the sliding part, and the end of the deflecting rod away from the sliding part is fixedly connected to the clamping and fixing member.

[0018] The pivot of the yaw rod is hollow, and the guide shaft can pass through the pivot of the yaw rod. The guide shaft and the yaw rod are connected by a keyway structure.

[0019] As a further embodiment of the present invention: the keyway structure includes a spiral groove arranged along the length direction of the guide shaft and a protrusion arranged on the inner wall of the deflector shaft. When the sliding part moves along the length direction of the slide plate, the protrusion can slide in the spiral groove and drive the deflector to swing.

[0020] As a further embodiment of the present invention: the clamping assembly includes a bidirectional lead screw rotatably mounted on the frame structure, two No. 2 threaded sleeves are symmetrically arranged on the bidirectional lead screw, the No. 2 threaded sleeves penetrate the frame structure and are connected to a side plate, and an abutment is provided at the end of the side plate away from the No. 2 threaded sleeve, one of the abutment is connected to the pushing structure.

[0021] As a further embodiment of the present invention: the threaded transmission structure includes a one-way screw sleeved on the connecting rod, a first threaded sleeve threadedly connected to the one-way screw, a support rod rotatably mounted on the first threaded sleeve, and the end of the support rod away from the first threaded sleeve rotatably connected to the sliding part.

[0022] The threaded transmission structure also includes a meshing structure connected to the pushing structure.

[0023] As a further embodiment of the present invention: the meshing structure includes a gear rotatably connected to one of the extended shafts and an arcuate rack plate disposed on one of the arcuate plates, the gear meshing with the arcuate rack plate.

[0024] As a further embodiment of the present invention: the pushing structure includes a connecting shaft rotatably mounted on the extension shaft, the connecting shaft being coaxially and fixedly connected to the gear, and a connecting sleeve being sleeved on the connecting shaft, a limiting block being provided on the inner wall of the connecting sleeve, and the limiting block being slidably engaged with a limiting groove provided on the connecting shaft;

[0025] A connecting plate is rotatably mounted on the end of the connecting sleeve away from the gear. The connecting plate is rotatably connected to the one-way lead screw, and the connecting sleeve and the one-way lead screw are connected by a belt.

[0026] A push-pull component is also rotatably mounted on the connecting sleeve, and the push-pull component is rotatably connected to a vertical plate rotatably mounted on the side plate.

[0027] A method of using a subcutaneous soft tissue separator as described in craniocerebral surgery includes the following steps:

[0028] Step 1: Secure the frame structure to the operating table, ensuring the patient's head is directly below the clamping fixation device;

[0029] Step 2: Control the movement of the clamping component to fix the patient's head. When the clamping component moves, it will drive the sliding retracting component to change the initial height of the clamping fixation piece through the pushing structure.

[0030] Step 3: The surgeon manually separates the patient's subcutaneous tissue and uses clamping fixation devices to hold the separated scalp.

[0031] Step 4: As the separation proceeds, control the drive components to move, causing the slide to make a circular motion. At this time, the slide will pull the patient's scalp and move the two ends of the separated scalp away from the slide.

[0032] Step 5: Repeat step 4 above until the skull is exposed within the surgical field.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] By using a specially designed drive assembly and threaded transmission structure, the surgeon can control the distance between the clamping fixation device and the patient's skull as the subcutaneous tissue separation progresses, based on the length of the separated scalp. As the subcutaneous tissue continues to separate and the length of the separated scalp increases, the clamping fixation device can be used to keep the scalp taut to a certain extent, reducing the amount of medical staff involved in the operation, saving manpower, and preventing the separated scalp from obstructing the surgical field of vision, thus reducing the difficulty of separation, increasing the success rate of the operation, and preventing the scalp from coming into contact with foreign objects and causing infection.

[0035] The sliding retraction component allows the clamping fixation pieces on both sides of the separated scalp to move a greater distance after the scalp is separated, resulting in a more consistent tension on the separated scalp. This reduces the difficulty for the surgeon when separating the two sides of the scalp. Furthermore, the side clamping fixation pieces have a tendency to bend the scalp outwards, providing a better field of vision on both sides of the separation site when the scalp is being pulled.

[0036] By using the clamping components and pushing structure, the patient's head can be fixed in place, thus improving the stability of the patient's head and preventing the scalpel from cutting the patient during subcutaneous tissue separation due to the movement of the patient's head under the action of gravity, thereby reducing surgical risks. On the other hand, the initial height of the clamping and fixing components will also change according to the different head circumferences of the patients, so that the separator can be used for patients with different head circumferences. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0038] Figure 2 This is a schematic diagram of the structure from another angle in one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0039] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle.

[0040] Figure 4 An exploded view of the drive assembly in one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0041] Figure 5 This is a schematic diagram of the sliding retraction component in one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0042] Figure 6 This is a schematic diagram of the sliding part and the deflector rod in one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0043] Figure 7 This is a schematic diagram of the pushing structure in one embodiment of a subcutaneous soft tissue separator used in craniocerebral surgery.

[0044] Figure 8 for Figure 4 Enlarged view of the structure at point B in the middle.

[0045] In the diagram: 1. Base; 2. Vertical plate; 201. Slide groove; 3. Electric push rod; 4. Slider; 5. Horizontal shaft; 6. Sliding connector; 601. Extension shaft; 7. Pulley; 8. Arc plate; 801. Arc groove No. 1; 802. Arc groove No. 2; 9. Connecting rod; 10. One-way lead screw; 11. Threaded sleeve No. 1; 12. Support rod; 13. Connecting sleeve; 1301. Limiting block; 14. Connecting... 1401, limiting groove; 15, connecting plate; 16, belt; 17, gear; 18, arc-shaped rack plate; 19, double-acting screw; 20, No. 2 threaded sleeve; 21, side plate; 22, abutment part; 23, vertical plate; 24, push-pull part; 25, sliding plate; 26, guide shaft; 2601, spiral groove; 27, deflecting rod; 2701, protrusion; 28, sliding part; 29, clamping and fixing part. Detailed Implementation

[0046] 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.

[0047] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0048] Please see Figures 1-8 In this embodiment of the invention, a subcutaneous soft tissue separator for craniocerebral surgery includes: a frame structure, a drive assembly, a sliding retraction assembly, a clamping assembly, and an adjustment assembly, to pull the separated scalp, so that after the patient's scalp is separated, the clamping and fixing members 29 on both sides of the separated scalp move a greater distance, and the degree of tension on the separated scalp is more consistent, thereby reducing the difficulty for the surgeon in separating the two sides of the scalp and improving the success rate of the surgery. In addition, since the clamping and fixing members 29 on the sides have a tendency to bend the scalp outward, the field of vision on both sides of the separation position is better when the scalp is pulled.

[0049] Specifically, the frame structure is provided with three sets of clamping and fixing parts 29, and the frame structure includes a base 1 and two upright plates 2 symmetrically arranged on the base 1.

[0050] The drive components are symmetrically mounted on the frame structure and connected to the slide plate 25 mounted on the frame structure. The two sets of drive components can drive the slide plate 25 to perform circular motion. The drive components include a slide groove 201 mounted on the upright plate 2. A slider 4 is slidably mounted in the slide groove 201. The slider 4 is connected to an electric push rod 3 fixed on the upright plate 2. The slider 4 is provided with a horizontal axis 5 perpendicular to the electric push rod 3. A guide structure is provided on the horizontal axis 5. The two sets of guide structures are connected by a connecting rod 9. The connecting rod 9 is fixedly connected to the slide plate 25.

[0051] The guide structure includes two arc-shaped plates 8 symmetrically arranged on the vertical plate 2, and the arc-shaped plates 8 are provided with a first arc-shaped groove 801 and a second arc-shaped groove 802, which are concentric.

[0052] The guide assembly also includes a sliding connector 6 slidably mounted on the horizontal shaft 5. The sliding connector 6 is rotatably connected to the connecting rod 9, and a pulley 7 is fixed on the sliding connector 6. The pulley 7 can roll in the first arc groove 801. An extension shaft 601 is also fixed on the sliding connector 6. The extension shaft 601 can slide in the second arc groove 802.

[0053] The adjustment assembly connects the clamping assembly and the slide plate 25. The adjustment assembly includes a pushing structure and a threaded transmission structure. The pushing structure and the threaded transmission structure cooperate to drive the sliding retracting assembly away from the patient's head when the slide plate 25 makes a circular motion.

[0054] The threaded transmission structure includes a one-way screw 10 sleeved on the connecting rod 9, a first threaded sleeve 11 threadedly connected to the one-way screw 10, a support rod 12 rotatably mounted on the first threaded sleeve 11, and the end of the support rod 12 away from the first threaded sleeve 11 rotatably connected to the sliding part 28.

[0055] The threaded transmission structure further includes a meshing structure connected to the pushing structure. The meshing structure includes a gear 17 rotatably connected to one of the extension shafts 601 and an arc-shaped rack plate 18 disposed on one of the arc-shaped plates 8. The gear 17 meshes with the arc-shaped rack plate 18.

[0056] When using it, the base 1 needs to be fixed on the operating table first, then the slide 25 is adjusted to the highest position, the patient lies flat on the operating table, and the patient's head is located under the slide 25. Finally, the chief physician performs subcutaneous tissue separation of the cranium.

[0057] As the dissection of the subcutaneous tissue of the cranium progresses, the length of the separated scalp increases. At this point, clamping fixation piece 29 can be used to fix the separated scalp. Furthermore, as the surgery continues, the surgeon can control the electric push rod 3 to drive the sliding plate 25 in a circular motion. Specifically, when the electric push rod 3 moves downwards, it drives the sliding connector 6 downwards via the slider 4 and the horizontal axis 5. Guided by the pulley 7 and the first arc-shaped groove 801, when the sliding connector 6 moves downwards, it will move along the length direction of the horizontal axis 5. The slide moves toward the slider 4 and drives the slide plate 25 to make a circular motion through the connecting rod 9. The extension shaft 601 is slidably set in the second arc groove 802, and the distance between the extension shaft 601 and the pulley 7 is equal to the distance between the first arc groove 801 and the second arc groove 802. The plane containing the central axis of the extension shaft 601 and the pulley 7 always passes through the line connecting the centers of the two arc plates 8. Thus, the extension line of the slide plate 25 always passes through the center of its circular motion. That is, the slide plate 25 can be regarded as always perpendicular to the patient's skull, which plays a certain guiding role for the sliding retraction component.

[0058] As the slide plate 25 moves in a circular motion, the gear 17 will follow the slide plate 25 in a circular motion. The gear 17 is in a state of meshing with the arc-shaped rack plate 18, so that the gear 17 will rotate when it moves in a circular motion, and drive the one-way screw 10 to rotate. This causes the first threaded sleeve 11 connected to the one-way screw 10 to move along the length of the one-way screw 10. Specifically, when the first threaded sleeve 11 moves toward the slide plate 25, the first threaded sleeve 11 will drive the sliding retracting assembly away from the connecting rod 9 through the support rod 12, and drive the clamping and fixing piece 29 away from the patient's skull, so that the patient's separated scalp can be pulled. On the one hand, this avoids the separated scalp from obstructing the surgical field of vision, and on the other hand, it avoids the scalp from contacting foreign objects and causing infection.

[0059] With the above settings, as the subcutaneous tissue separation progresses, the surgeon can control the distance between the clamping fixation piece 29 and the patient's skull based on the length of the separated scalp. As the subcutaneous tissue continues to separate and the length of the separated scalp increases, the clamping fixation piece 29 can be used to keep the scalp in a certain degree of tension, reducing the amount of medical staff involved in the operation, saving manpower, and preventing the separated scalp from obstructing the surgical field of vision, thereby reducing the difficulty of separation, increasing the success rate of the operation, and preventing the scalp from coming into contact with foreign objects and causing infection.

[0060] Please see Figure 4 , Figure 5 , Figure 6 , Figure 8 The sliding retractable assembly is disposed on the slide plate 25 and connected to the clamping and fixing member 29. The sliding retractable assembly can move along the length direction of the slide plate 25 and drive the clamping and fixing member 29 located on the side to move away from the plane where the slide plate 25 is located.

[0061] The sliding retracting assembly includes a sliding part 28 slidably disposed on the slide plate 25 and guide shafts 26 symmetrically disposed on both sides of the slide plate 25. Two deflecting rods 27 are symmetrically rotatably mounted on the sliding part 28, and one end of the deflecting rod 27 away from the sliding part 28 is fixedly connected to the clamping and fixing member 29.

[0062] The pivot of the yaw rod 27 is hollow, and the guide shaft 26 can pass through the pivot of the yaw rod 27. The guide shaft 26 and the yaw rod 27 are connected by a keyway structure. The keyway structure includes a spiral groove 2601 arranged along the length direction of the guide shaft 26 and a protrusion 2701 arranged on the inner wall of the pivot of the yaw rod 27. When the sliding part 28 moves along the length direction of the slide plate 25, the protrusion 2701 can slide in the spiral groove 2601 and drive the yaw rod 27 to swing.

[0063] When the No. 1 threaded sleeve 11 moves close to the slide plate 25, the sliding part 28 will move away from the patient's head along the length of the slide plate 25. At the same time, the sliding part 28 will drive the deflecting rod 27 to move synchronously, and drive the three sets of clamping and fixing parts 29 to move away from the patient's head so that the separated scalp is kept in a certain degree of tension. When the deflecting rod 27 moves away from the patient's head, the deflecting rod 27 will deflect under the action of the spiral groove 2601 and the protrusion 2701, and drive the clamping and fixing parts 29 located on both sides to move away from the connecting rod 9. At this time, the three clamping and fixing parts 29 are triangularly distributed, so that the length of the separated scalp on both sides is pulled greater, avoiding the three clamping and fixing parts 29 being in the same position, which would cause the scalp to be pulled and tightened unevenly, thus increasing the difficulty of separating the two sides of the scalp.

[0064] With the above settings, after the patient's scalp is separated, the clamping and fixing components 29 on both sides of the separated scalp can move a greater distance, resulting in a more consistent degree of tension on the separated scalp. This reduces the difficulty for the surgeon when separating the two sides of the scalp, increases the success rate of the surgery, and because the clamping and fixing components 29 on the sides have a tendency to bend the scalp outward, the field of vision on both sides of the separation position is better when the scalp is pulled.

[0065] Furthermore, among the three sets of clamping and fixing components 29, the clamping and fixing components 29 located on both sides are respectively connected to two eccentric rods 27 via rubber connecting rods, and the clamping and fixing component 29 located in the middle is connected to the sliding part 28 via a rubber connecting rod.

[0066] Please see Figure 1 , Figure 2 , Figure 3 , Figure 7 The clamping assembly is disposed on the upright plate 2. The clamping assembly is used to fix the patient's head. The clamping assembly includes a bidirectional lead screw 19 rotatably mounted on the upright plate 2. Two No. 2 threaded sleeves 20 are symmetrically disposed on the bidirectional lead screw 19. The No. 2 threaded sleeves 20 penetrate the frame structure and are connected to a side plate 21. An abutment 22 is disposed at the end of the side plate 21 away from the No. 2 threaded sleeves 20. One of the abutment 22 is connected to the pushing structure.

[0067] The pushing structure includes a connecting shaft 14 rotatably mounted on the extension shaft 601. The connecting shaft 14 is coaxially and fixedly connected to the gear 17. A connecting sleeve 13 is sleeved on the connecting shaft 14. A limiting block 1301 is provided on the inner wall of the connecting sleeve 13. The limiting block 1301 is slidably engaged with a limiting groove 1401 provided on the connecting shaft 14.

[0068] A connecting plate 15 is rotatably mounted on the end of the connecting sleeve 13 away from the gear 17. The connecting plate 15 is rotatably connected to the one-way lead screw 10, and the connecting sleeve 13 and the one-way lead screw 10 are connected by a belt 16.

[0069] A push-pull component 24 is rotatably mounted on the connecting sleeve 13, and the push-pull component 24 is rotatably connected to the vertical plate 23 rotatably mounted on the side plate 21.

[0070] Before performing subcutaneous tissue separation, the two No. 2 threaded sleeves 20 can be driven to move closer or further apart by rotating the bidirectional screw 19. Specifically, when the two No. 2 threaded sleeves 20 move closer together, they will drive the two side plates 21 to move closer together to clamp the patient's head, thereby improving the stability of the patient's head during the operation and preventing the scalpel from cutting the patient due to the movement of the patient's head under the action of gravity during subcutaneous tissue separation, thus reducing the surgical risk.

[0071] When the side plate 21 clamps the patient's head, one of the side plates 21 will drive the vertical plate 23 to move and drive the push-pull member 24 to move. When the push-pull member 24 moves, it can drive the connecting sleeve 13 away from the gear 17 and drive the one-way screw 10 to move closer to the slide plate 25 under the action of the connecting plate 15, so that the sliding part 28 moves away from the connecting rod 9. The distance between the clamping fixing member 29 and the patient's head can be changed according to the size of the patient's head and tail, so that the separator can be used for patients with different head circumferences.

[0072] The above settings can, on the one hand, fix the patient's head and improve its stability, thus preventing the scalpel from cutting the patient during subcutaneous tissue separation due to the patient's head moving under gravity, thereby reducing surgical risks. On the other hand, the initial height of the clamping fixture 29 will also change according to the patient's different head circumference, making the separator suitable for patients with different head circumferences.

[0073] It should be noted that when the connecting sleeve 13 moves, it can always remain engaged with the connecting shaft 14, so that when the gear 17 rotates, it can drive the one-way lead screw 10 to rotate through the belt 16 under the action of the limiting block 1301 and the limiting groove 1401.

[0074] As an embodiment of the present invention, a method for using a subcutaneous soft tissue separator as described above in craniocerebral surgery is also proposed, comprising the following steps:

[0075] Step 1: Secure the frame structure to the operating table, and position the patient's head directly below the clamping fixture 29;

[0076] Step 2: Control the movement of the clamping component to fix the patient's head. When the clamping component moves, it will drive the sliding retracting component to change the initial height of the clamping fixture 29 through the pushing structure.

[0077] Step 3: The surgeon manually separates the patient's subcutaneous tissue and uses clamping fixation device 29 to clamp the separated scalp.

[0078] Step 4: As the separation proceeds, control the drive component to move so that the slide plate 25 makes a circular motion. At this time, the slide plate 25 will pull the patient's scalp and move the two ends of the separated scalp away from the slide plate 25.

[0079] Step 5: Repeat step 4 above until the skull is exposed in the surgical field.

[0080] 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.

[0081] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A subcutaneous soft tissue separator for use in craniocerebral surgery, characterized in that, include: The frame structure is provided with three sets of clamping and fixing components; The drive components are symmetrically mounted on the frame structure and connected to the slide plate set on the frame structure. The two sets of drive components can drive the slide plate to perform circular motion. A sliding retractable assembly is disposed on the slide plate and connected to the clamping and fixing member. The sliding retractable assembly is capable of moving along the length direction of the slide plate and driving the clamping and fixing member located on the side to move away from the plane on which the slide plate is located. A clamping assembly is disposed on the frame structure, the clamping assembly being used to fix the patient's head; An adjustment component connects the clamping component and the slide plate. The adjustment component includes a pushing structure and a threaded transmission structure. The pushing structure and the threaded transmission structure cooperate to drive the sliding retracting component away from the patient's head when the slide plate makes a circular motion. The drive assembly includes a slide groove disposed on the frame structure, a slider slidably mounted in the slide groove, the slider being connected to an electric push rod fixed on the frame structure, and a horizontal axis perpendicular to the electric push rod being disposed on the slider, a guide structure being disposed on the horizontal axis, and two sets of guide structures being connected by a connecting rod, the connecting rod being fixedly connected to the slide plate; The guide structure includes two arc-shaped plates symmetrically arranged on the frame structure, and the arc-shaped plates are provided with a first arc-shaped groove and a second arc-shaped groove, which are concentric. The guide structure further includes a sliding connector that is slidably mounted on the horizontal axis. The sliding connector is rotatably connected to the connecting rod, and a pulley is fixed on the sliding connector. The pulley can roll in the first arc-shaped groove. An extension shaft is also fixed on the sliding connector, and the extension shaft can slide within the second arc-shaped groove. The sliding retracting assembly includes a sliding part slidably disposed on the slide plate and guide shafts symmetrically disposed on both sides of the slide plate. Two deflecting rods are symmetrically rotatably mounted on the sliding part, and the end of the deflecting rod away from the sliding part is fixedly connected to the clamping and fixing member. The pivot of the yaw rod is hollow, the guide shaft can pass through the pivot of the yaw rod, and the guide shaft and the yaw rod are connected by a keyway structure. The clamping assembly includes a bidirectional lead screw rotatably mounted on the frame structure. Two No. 2 threaded sleeves are symmetrically arranged on the bidirectional lead screw. The No. 2 threaded sleeves penetrate the frame structure and are connected to a side plate. An abutment is provided at the end of the side plate away from the No. 2 threaded sleeve, and one of the abutment is connected to the pushing structure. The threaded transmission structure includes a one-way screw sleeved on the connecting rod, a first threaded sleeve threadedly connected to the one-way screw, a support rod rotatably mounted on the first threaded sleeve, and the end of the support rod away from the first threaded sleeve rotatably connected to the sliding part. The threaded transmission structure also includes a meshing structure connected to the pushing structure; The meshing structure includes a gear rotatably connected to one of the extended shafts and an arc-shaped rack plate disposed on one of the arc-shaped plates, the gear meshing with the arc-shaped rack plate; The pushing structure includes a connecting shaft rotatably mounted on the extension shaft, the connecting shaft being coaxially and fixedly connected to the gear, and a connecting sleeve being sleeved on the connecting shaft. A limit block is provided on the inner wall of the connecting sleeve, and the limit block is slidably engaged with a limit groove provided on the connecting shaft. A connecting plate is rotatably mounted on the end of the connecting sleeve away from the gear. The connecting plate is rotatably connected to the one-way lead screw, and the connecting sleeve and the one-way lead screw are connected by a belt. A push-pull component is also rotatably mounted on the connecting sleeve, and the push-pull component is rotatably connected to a vertical plate rotatably mounted on the side plate.

2. The subcutaneous soft tissue separator for use in craniocerebral surgery according to claim 1, characterized in that, The keyway structure includes a spiral groove arranged along the length of the guide shaft and a protrusion arranged on the inner wall of the deflector shaft. When the sliding part moves along the length of the slide plate, the protrusion can slide in the spiral groove and drive the deflector to swing.

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