Brain spatula for neurosurgery operation

Abstract

The invention discloses a brain spatula for neurosurgery, and belongs to the technical field of neurosurgery medical instruments, the brain spatula comprises a fixing plate and two brain spatula bodies, the surface of the end of the fixing plate is provided with an action mechanism and a shell, and the action mechanism comprises a lifting plate, an opening and closing assembly and a telescopic assembly. The distance between the two brain spatula bodies can be controlled by arranging the opening and closing assembly and pushing the sliding block to be in linkage with the opening and closing connecting rod, a surgery operation channel is formed, through cooperative use of the lifting plate and the telescopic assembly, vertical descending and retracting of the brain spatula bodies are achieved, gradual weak traction on brain tissue is completed, sudden pressing caused by the lever effect is avoided, and the brain spatula body is prevented from being damaged. Brain tissue damage caused by continuous single-point pressing can be prevented, the warning assembly and the small pressure sensor are arranged to monitor the pressure of the brain spatula on the tissue in real time in the operation, and when the pressure exceeds the limit, the control chip triggers an optical fiber to warn and remind a doctor to adjust operation, and tissue damage is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of neurosurgery medical instruments, and in particular to a brain pressure plate for neurosurgery. Background Art

[0002] A brain pressure splint is a device specifically used in neurosurgery. It is mainly used to pull, block, and fix brain tissue to expose the surgical field and assist in delicate operations. It is usually made of a rigid single-piece structure such as stainless steel and titanium alloy.

[0003] Existing intracranial pressure splints are prone to slight rotation due to the doctor's wrist movement. When used in a confined area (such as during a medium-sized acoustic neuroma resection surgery), this slight rotation can amplify the displacement of the distal end of the pressure splint through the lever effect, causing the distal end of the pressure splint to suddenly depress excessively and over-compress the brain tissue, which can easily lead to brain ischemia or mechanical damage.

[0004] Furthermore, the existing intracerebral pressure plate limits the surgical field of view due to its fixed structure, blocks the exposure of lesions, and hinders the coordinated operation of instruments such as suction devices and bipolar coagulation, increasing the risk of surgical blind spots. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of insufficient traction control accuracy of brain pressure plates in the prior art and obstruction of surgical field of view and surgical instruments, and to propose a brain pressure plate for neurosurgery.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A neurosurgery intracranial pressure plate comprises a fixed plate and two intracranial pressure plate bodies. The surfaces of the ends of the fixed plates are provided with an actuating mechanism and a housing. The actuating mechanism comprises two lifting plates for vertically adjusting the intracranial pressure plate bodies. An opening and closing assembly for adjusting the spacing between the intracranial pressure plate bodies is provided above the lifting plates. A telescopic assembly for controlling the telescopic movement of the intracranial pressure plate bodies is provided within the opening and closing assembly.

[0008] The opening and closing assembly includes a sliding mounting plate, an opening and closing connecting rod group is provided above the sliding mounting plate, a control connecting rod is connected to the upper end of the opening and closing connecting rod group, an opening and closing slide rail is provided at one end of the opening and closing connecting rod group away from the sliding mounting plate, a positioning groove is provided on the inner side wall of the opening and closing slide rail, an opening and closing slider is slidably connected in the opening and closing slide rail, a positioning pin is provided on the outer side wall of the opening and closing slider, and the opening and closing slider is connected to the end of the control connecting rod;

[0009] The telescopic assembly includes a telescopic slider, a control pressure block for controlling the lifting and extension of the brain pressure board body is fixedly connected to the top of the telescopic slider, and the end of the telescopic slider away from the sliding mounting plate is plugged into the brain pressure board body. A warning component is provided inside the telescopic slider for prompting excessive pressure during surgery;

[0010] A control chip is integrated in the shell, and a battery slot is provided below the shell.

[0011] Preferably, a transverse sliding groove for connecting the sliding mounting plate is provided on the surface of the lifting plate, and a lifting limit rod passing through the fixed plate is provided under the lifting plate. A disc spring is sleeved on the rod body of the lifting limit rod. The disc spring is provided between the fixed plate and the lifting plate to provide a reset elastic force for the lifting plate.

[0012] Preferably, a telescopic slide groove is provided in the sliding mounting plate, the inner side wall of the telescopic slide groove is connected to the telescopic slider, the telescopic slide groove is open at one end away from the closing slide rail, and compensation limit rods are provided above the adjacent two sides of the sliding mounting plate, the compensation limit rods are slidably connected to the end of the opening and closing connecting rod group, and a horizontal slider matching the horizontal slide groove is fixedly connected to the bottom of the sliding mounting plate.

[0013] Preferably, a slot for mounting the brain pressure board body is provided inside the end of the telescopic slider away from the sliding mounting plate, and a compression spring is connected to the end of the telescopic slider close to the sliding mounting plate to provide a reset force.

[0014] Preferably, a positioning groove and an optical fiber card slot are provided at the top of the slot, and a mounting opening aligned with the positioning groove is provided at the bottom of the slot, and a cover plate for pressing the brain pressure plate body is threadedly connected to the mounting opening.

[0015] Preferably, a positioning column matching the positioning groove is fixedly connected to the upper surface of the cover plate.

[0016] Preferably, a mounting tube is provided above the brain pressure plate body, a plurality of window pieces are provided on the tube body of the mounting tube at equal intervals, and one end of the mounting tube close to the optical fiber card slot is open.

[0017] Preferably, the warning component includes a small pressure sensor and a warning optical fiber. The small pressure sensor is embedded in the top of the slot. One end of the warning optical fiber is connected to the interior of the closed end of the mounting tube. The other end of the warning optical fiber passes through the mounting tube, the optical fiber slot and the sliding mounting plate in sequence to connect to the control chip in the shell.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention sets an opening and closing assembly. By pushing the control slider, the control railing can be linked to drive the opening and closing connecting rod group to expand to both sides, and drive the two brain pressure plate bodies to form an operating channel, exposing the surgical field of view and providing operating space for surgical instruments.

[0020] 2. The present invention uses a lifting plate and a telescopic assembly in conjunction with each other. Vertical pressing controls the pressure block to drive the lifting plate and the brain pressure plate body to descend vertically. Horizontal traction controls the inclined surface of the pressure block to cause the telescopic slider to retract the brain pressure plate, thereby achieving weak traction on the brain tissue. The cyclic alternation of the above actions can form a progressive traction, which can avoid sudden downward pressure caused by the lever effect and prevent brain tissue damage caused by continuous single-point pressure.

[0021] 3. The present invention sets an alarm component, and a small pressure sensor monitors the pressure of the brain pressure plate on the tissue in real time during surgery. When the pressure exceeds the limit, the control chip triggers the optical fiber alarm to remind the doctor to adjust the operation to avoid damaging the tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a brain pressure plate for neurosurgery proposed by the present invention;

[0023] Figure 2 This is an overall structural assembly diagram of a brain pressure plate for neurosurgery proposed by the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a structural assembly diagram of the action mechanism of a brain pressure plate for neurosurgery proposed by the present invention;

[0026] Figure 5 This is a schematic structural diagram of a single brain compression board body in a descending and retracted state in a brain compression board for neurosurgery proposed by the present invention;

[0027] Figure 6 This is a schematic structural diagram of an opening and closing assembly in a closed state in a brain pressure plate for neurosurgery proposed by the present invention;

[0028] Figure 7 This is a structural assembly diagram of an opening and closing slide rail and an opening and closing slider in a brain pressure plate for neurosurgery proposed by the present invention;

[0029] Figure 8 This is a structural assembly diagram of a fixing plate and a shell in a brain pressure plate for neurosurgery proposed by the present invention;

[0030] Figure 9This is a structural assembly diagram of the telescopic slider and the brain pressure board body in a brain pressure board for neurosurgery proposed by the present invention;

[0031] Figure 10 This is a structural schematic diagram of a cover plate in a brain compression plate for neurosurgery proposed by the present invention.

[0032] In the figure: 1. Fixed plate; 2. Brain pressure plate body; 3. Shell; 4. Lifting plate; 5. Sliding mounting plate; 6. Opening and closing connecting rod group; 7. Control connecting rod; 8. Opening and closing slide rail; 9. Opening and closing slider; 10. Telescopic slider; 11. Control pressure block; 12. Lifting limit rod; 13. Compensation limit rod; 14. Horizontal slider; 15. Positioning groove; 16. Fiber optic card slot; 17. Cover plate; 18. Mounting tube; 19. Window piece; 20. Small pressure sensor; 21. Warning optical fiber. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] Example, see Figures 1 to 10A brain pressure plate for neurosurgery, comprising a fixed plate 1 and two brain pressure plate bodies 2, an action mechanism and a shell 3 are provided on the surface of the end of the fixed plate 1, the action mechanism comprises two lifting plates 4 for adjusting the brain pressure plate bodies 2 in the vertical direction, an opening and closing assembly for adjusting the spacing between the brain pressure plate bodies 2 is provided above the lifting plates 4, and a telescopic assembly for controlling the telescopic movement of the brain pressure plate bodies 2 is provided inside the opening and closing assembly;

[0037] The opening and closing assembly includes a sliding mounting plate 5, an opening and closing connecting rod group 6 is provided above the sliding mounting plate 5, a control connecting rod 7 is connected to the upper end of the opening and closing connecting rod group 6, an opening and closing slide rail 8 is provided at the end of the opening and closing connecting rod group 6 away from the sliding mounting plate 5, a positioning groove 15 is provided on the inner side wall of the opening and closing slide rail 8, an opening and closing slider 9 is slidably connected to the opening and closing slide rail 8, a positioning pin is provided on the outer side wall of the above-mentioned opening and closing slider 9, and the opening and closing slider 9 is connected to the end of the control connecting rod 7;

[0038] The advantage of using the above-mentioned opening and closing components is that pushing the control slider can link the control railing to drive the opening and closing connecting rod group 6 to expand to both sides, and using the compensation limit rod 13 to synchronously push the opening and closing slider 9 to move along the slide rail, and finally drive the two brain pressure plate bodies 2 to form a regular operating channel, exposing the surgical field of view, providing operating space for surgical instruments, and solving the problems of instrument interference and limited field of view.

[0039] The telescopic assembly includes a telescopic slider 10, to which a control pressure block 11 for controlling the lifting and extension of the brain pressure plate body 2 is fixedly connected above the telescopic slider 10. The end of the telescopic slider 10 away from the sliding mounting plate 5 is plugged into the brain pressure plate body 2. A warning component is provided inside the telescopic slider 10 to indicate excessive pressure during surgery.

[0040] It should be noted that the surface of the control pressing block 11 has an inclined surface, so that the doctor can control the pressing block 11 by pulling it with his thumb.

[0041] The advantage of using the telescopic assembly is that the lifting plate 4 is driven downward by vertically pressing the control block 11, thereby driving the brain pressure plate body 2 to descend vertically. Then, the inclined surface of the control block 11 is pulled horizontally to cause the telescopic slider 10 to retract the brain pressure plate, thereby achieving weak traction on the brain tissue. The cyclic alternation of the above actions can form a gradual traction, which not only avoids sudden downward pressure caused by the lever effect, but also prevents brain tissue damage caused by continuous single-point pressure.

[0042] The housing 3 contains a control chip, and a battery slot is provided below the housing 3 .

[0043] It should be noted that a button battery in the prior art needs to be connected in the battery slot to supply power to the control chip in the housing 3 .

[0044] Furthermore, a transverse groove for connecting the sliding mounting plate 5 is provided on the surface of the lifting plate 4. A lifting limit rod 12 is provided below the lifting plate 4 and passes through the fixed plate 1. A disc spring is sleeved on the rod body of the lifting limit rod 12. The disc spring is provided between the fixed plate 1 and the lifting plate 4 to provide a reset elastic force for the lifting plate 4. The pre-stressed state of the disc spring ensures that the lifting plate 4 can automatically reset to its initial height when no pressure is applied. The lifting limit rod 12 strictly limits the lifting plate 4 to only vertical linear motion along its axial direction to prevent deflection.

[0045] Furthermore, a telescopic slide groove is provided in the sliding mounting plate 5, the inner side wall of the telescopic slide groove is connected to the telescopic slider 10, and the end of the telescopic slide groove away from the closing slide rail 8 is open. Compensation limit rods 13 are provided above the adjacent two sides of the sliding mounting plate 5. The compensation limit rods 13 are slidably connected to the ends of the opening and closing connecting rod group 6. A transverse slider 14 matching the transverse slide groove is fixedly connected to the bottom of the sliding mounting plate 5;

[0046] It should be noted that: during the process of pressing down and resetting, the end of the opening and closing connecting rod group 6 can slide along the compensation limit rod 13, so that when the end of the opening and closing connecting rod group 6 slides along the compensation limit rod 13 during the lifting process, it can automatically generate vertical position compensation, thereby maintaining the stability and linkage relationship of the opening and closing mechanism during the lifting process.

[0047] Furthermore, a slot for mounting the brain pressure board body 2 is provided inside the end of the telescopic slider 10 away from the sliding mounting plate 5, and a compression spring is connected to the end of the telescopic slider 10 close to the sliding mounting plate 5 to provide a reset force;

[0048] Furthermore, a positioning groove 15 and an optical fiber card slot 16 are provided at the top of the slot, and a mounting port aligned with the positioning groove 15 is provided at the bottom of the slot. The mounting port is threadedly connected with a cover plate 17 for pressing the brain compression plate body 2. A positioning column matching the positioning groove 15 is fixedly connected to the upper surface of the cover plate 17. The cover plate 17 is connected to the mounting port by screws in the prior art. The positioning column of the cover plate 17 is accurately inserted into the positioning groove 15 at the top of the slot to form a positioning, ensuring that the position of the cover plate 17 is accurate and firm when pressing the brain compression plate body 2 to prevent loosening during surgery. The optical fiber card slot 16 is used to accommodate and fix a specific section of the warning optical fiber 21;

[0049] Furthermore, a mounting tube 18 is provided above the brain compression board body 2. The body of the mounting tube 18 is provided with a plurality of windows 19 at equal intervals. One end of the mounting tube 18 close to the optical fiber slot 16 is open, so that the warning optical fiber 21 can enter the optical fiber slot 16. The open end of the mounting tube 18 facilitates the warning optical fiber 21 to pass from the inside of the brain compression board body 2 into the optical fiber slot 16 in the telescopic slider 10. The windows 19 distributed along the body of the tube provide multiple visual outlets for the optical signal emitted by the warning optical fiber 21, ensuring that the warning light is clearly visible at different angles in the surgical field.

[0050] Furthermore, the warning component includes a small pressure sensor 20 and a warning optical fiber 21. The small pressure sensor 20 is embedded in the top of the slot, and one end of the warning optical fiber 21 is connected to the inside of the closed end of the mounting tube 18. The other end of the warning optical fiber 21 passes through the mounting tube 18, the optical fiber card slot 16 and the sliding mounting plate 5 in sequence to be connected to the control chip in the housing 3. The small pressure sensor 20 is located at the top of the slot, and its sensing surface directly contacts the brain pressure board body 2, which is used to sense the pressure transmitted to the end of the brain pressure board body 2. The connecting end of the warning optical fiber 21 is firmly fixed to the light source coupling point inside the closed end of the mounting tube 18, and its signal transmission section is constrained and guided by the optical fiber card slot 16, passes through the reserved channel in the sliding mounting plate 5, and is finally connected to the control chip interface in the housing 3;

[0051] A further benefit of this approach is that during surgery, the small pressure sensor 20 monitors the pressure applied by the pressure plate to the tissue in real time. If the pressure exceeds the limit, the control chip triggers an optical fiber alarm, prompting the surgeon to adjust the procedure to avoid damaging brain tissue and improve safety during surgery.

[0052] When the present invention is in use, when performing fine tissue traction, the doctor uses his fingers to vertically press the control pressure block 11 corresponding to the target brain pressure plate to apply pressure to the lifting plate 4. After the lifting plate 4 is subjected to the vertical force, it moves downward in a straight line along the axial direction of the lifting limit rod 12 and drives the sliding mounting plate 5, the telescopic slider 10 and the brain pressure plate body 2 to drop vertically synchronously. In this process, the downward pressing distance is completely controlled by the vertical pressure applied by the doctor's fingers. After the brain pressure plate body 2 drops to the appropriate position, the doctor can use the inclined surface of the control pressure block 11 to use his fingers to horizontally pull the control pressure block 11 to apply tension, thereby retracting the telescopic slider 10, and retracting the brain pressure plate body 2 through the telescopic slider 10, thereby achieving weak traction control, avoiding the lever effect amplifying the end displacement, resulting in sudden excessive downward pressure on the end of the brain pressure plate, and the cyclic alternation of the above actions can form a gradual traction, which can avoid the brain pressure plate continuously pulling the same part to cause organic damage to the patient's brain;

[0053] When it is necessary to expose the lesion or create an instrument channel, the doctor pushes the control slider to slide toward the brain pressure plate body 2 and pushes the control rail to move synchronously, and drives the opening and closing link group 6 to expand from the center to both sides through the control link 7. During the expansion process, the opening and closing link group 6 pushes the opening and closing slider 9 to expand from the center to both sides in the opening and closing slide rail 8 through the compensation limit rod 13, and finally drives the two brain pressure plate bodies 2 to expand, thereby forming a spacious and regular operation channel, improving the exposure of the deep surgical field, and providing operating space and smooth entry and exit paths for key surgical instruments such as surgical forceps, suction devices, bipolar electrocoagulation, and ultrasonic suction devices, solving the problems of mutual interference of instruments and limited field of view when operating in a narrow area. At the same time, traction actions can still be performed in this state;

[0054] During the operation, the small pressure sensor 20 can sense the pressure exerted on the brain tissue by the brain pressure plate body 2 in real time. When the pressure exceeds the preset safety threshold, the control chip lights up the warning optical fiber 21 to emit a light signal, and clearly and visibly alerts the doctor through the window piece 19 on the mounting tube 18, so that the doctor can immediately detect excessive pressure and adjust the operation, effectively avoiding organic brain tissue damage caused by excessive pressure and improving the safety of the operation. At the same time, the optical fiber transmission method has strong anti-electromagnetic interference ability and is suitable for operating rooms with complex electromagnetic environments.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A brain pressure plate for neurosurgery, comprising a fixing plate (1) and two brain pressure plate bodies (2), characterized in that: The surface of the end of the fixed plate (1) is provided with an action mechanism and a shell (3), the action mechanism includes two lifting plates (4) for adjusting the brain pressure plate body (2) in the vertical direction, an opening and closing component for adjusting the spacing of the brain pressure plate body (2) is provided above the lifting plates (4), and a telescopic component for controlling the telescopic movement of the brain pressure plate body (2) is provided inside the opening and closing component; The opening and closing assembly comprises a sliding mounting plate (5), an opening and closing connecting rod group (6) is provided above the sliding mounting plate (5), a control connecting rod (7) is connected above the opening and closing connecting rod group (6), an opening and closing slide rail (8) is provided at one end of the opening and closing connecting rod group (6) away from the sliding mounting plate (5), a positioning groove (15) is provided on the inner side wall of the opening and closing slide rail (8), an opening and closing slider (9) is slidably connected in the opening and closing slide rail (8), a positioning pin is provided on the outer side wall of the opening and closing slider (9), and the opening and closing slider (9) is connected to the end of the control connecting rod (7); The telescopic assembly includes a telescopic slider (10), a control pressure block (11) for controlling the lifting and extension of the brain pressure plate body (2) is fixedly connected to the upper portion of the telescopic slider (10), an end of the telescopic slider (10) away from the sliding mounting plate (5) is plugged into the brain pressure plate body (2), and a warning component for prompting excessive pressure during surgery is provided in the telescopic slider (10); A control chip is integrated in the housing (3), and a battery slot is provided below the housing (3).

2. A neurosurgery pressure plate according to claim 1, characterized in that: The surface of the lifting plate (4) is provided with a transverse sliding groove for connecting to the sliding mounting plate (5); a lifting limit rod (12) penetrating the fixed plate (1) is provided below the lifting plate (4); a disc spring is sleeved on the rod body of the lifting limit rod (12); the disc spring is provided between the fixed plate (1) and the lifting plate (4) and is used to provide a reset elastic force for the lifting plate (4).

3. A brain pressure plate for neurosurgery according to claim 1, characterized in that: A telescopic slot is provided in the sliding mounting plate (5), the inner side wall of the telescopic slot is connected to the telescopic slider (10), and the telescopic slot is open at one end away from the closing slide rail (8). Compensation limit rods (13) are provided above the adjacent two sides of the sliding mounting plate (5), and the compensation limit rods (13) are slidably connected to the ends of the opening and closing connecting rod group (6). A transverse slider (14) matching the transverse slot is fixedly connected below the sliding mounting plate (5).

4. A brain pressure plate for neurosurgery according to claim 1, characterized in that: A slot for mounting the brain pressure plate body (2) is provided inside the end of the telescopic slider (10) away from the sliding mounting plate (5), and a compression spring is connected to the end of the telescopic slider (10) close to the sliding mounting plate (5) to provide a reset elastic force.

5. A brain pressure plate for neurosurgery according to claim 4, characterized in that: The top of the slot is provided with a positioning slot (15) and an optical fiber card slot (16), the bottom of the slot is provided with a mounting opening aligned with the positioning slot (15), and the mounting opening is threadedly connected to a cover plate (17) for pressing the brain pressure plate body (2).

6. A brain pressure plate for neurosurgery according to claim 5, characterized in that: A positioning column matching the positioning groove (15) is fixedly connected to the upper surface of the cover plate (17).

7. The brain pressure plate for neurosurgery according to claim 5, characterized in that: A mounting tube (18) is provided above the brain pressure plate body (2), and a plurality of window pieces (19) are provided on the body of the mounting tube (18) at equal intervals. One end of the mounting tube (18) close to the optical fiber card slot (16) is open.

8. The brain pressure plate for neurosurgery according to claim 7, characterized in that: The warning component comprises a small pressure sensor (20) and a warning optical fiber (21); the small pressure sensor (20) is embedded in the top of the slot; one end of the warning optical fiber (21) is connected to the interior of a closed end of the mounting tube (18); the other end of the warning optical fiber (21) passes through the mounting tube (18), the optical fiber slot (16) and the sliding mounting plate (5) in sequence to be connected to the control chip in the housing (3).

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