Post-craniotomy subcutaneous effusion puncture suction and administration device

Abstract

The invention relates to the technical field of perioperative period management, and provides a post-craniotomy subcutaneous effusion puncture suction and administration device which comprises a lantern ring, a plurality of fixing sleeves are fixedly connected to the inner circumference of the lantern ring and surround the inner circumference of the lantern ring at equal intervals, an expansion air bag is fixedly arranged in each fixing sleeve in a sleeved mode, and the expansion air bags are fixed to the inner circumference of the lantern ring in a sleeved mode. Cotton gaskets are arranged on the inner peripheries of the multiple fixing sleeves, and the expansion air bag enables the cotton gaskets to abut against the forehead of the patient through expansion so that the lantern ring can be fixed to the forehead of the patient. The two traction arcs are arranged in a crossed and staggered mode, sliding grooves are formed in the middle ends of the traction arcs, and an expansion fixing piece is connected to the intersection of the two sliding grooves in a sliding mode. The device can be matched with a single person to carry out subcutaneous hydrops suction and medicine injection work after craniotomy, in the suction or medicine injection process, the device assists in fixing a needle head and carrying out syringe operation with two hands, multiple persons do not need to carry out stable hydrops suction and medicine injection operation, medical convenience is improved, and manpower consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of perioperative management, and in particular to a device for puncturing, aspirating and administering medication for subcutaneous effusion after craniotomy. Background Art

[0002] Craniotomy is a surgical procedure that involves opening the skull to access the brain, and is often used to treat various brain tumors, brain aneurysms, brain abscesses, intracranial hematomas, brain injuries, and other brain diseases. During the operation, the doctor will make one or more incisions in the patient's scalp, remove a small bone flap, cut the dura mater to expose the brain, perform necessary surgical operations, and then repair the dura mater, return the skull, and suture the scalp. Subcutaneous effusion in the surgical incision after craniotomy is one of the complications caused during the recovery period after surgery, especially in patients with intracranial infection, intracranial aseptic inflammation or epidural infection. Inflammatory exudation will occur, leading to subcutaneous effusion. The symptoms are scalp swelling at the surgical site, formation of a lump, cerebrospinal fluid extravasation in the lump or soft tissue damage or inflammatory reaction exudate in the surgical area, which will cause persistent headache and fever in patients, especially when there is a lot of effusion. The subcutaneous fluid accumulated in such patients is drained, and diluted therapeutic antibiotics are injected into the subcutaneous tissue after extraction. Combined with systemic anti-infection treatment, it can quickly relieve local symptoms, shorten the course of the disease, and cure subcutaneous effusion.

[0003] At present, the common treatment method for subcutaneous effusion is to use a medical syringe with a scalp needle and a hose for suction. After suction, the syringe is pulled out and replaced with a syringe filled with antibiotic solution for slow injection. However, during the suction and drug administration process, the syringe and scalp needle need to be fixed at the same time to ensure that the scalp needle is stable to avoid displacement, and stable extraction and injection operations are performed. For medical safety, this process requires at least two people to cooperate to complete (one person to suction and one person to fix the needle) to ensure the basic extraction operation. Once the needle is displaced, it will cause suction failure and the needle needs to be adjusted again. Adjusting the needle will increase the risk of subcutaneous bleeding. Once the subcutaneous artery is punctured, it will cause severe consequences of heavy bleeding. Therefore, there is an urgent need for a device in the clinic that can ensure the fixation of the puncture needle and the smooth suction and drug administration during the operation. The use of this device can also reduce manpower consumption, and one doctor can operate alone. Therefore, a device for puncturing, suctioning and drug administration of subcutaneous effusion after craniotomy is needed to solve this problem. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device for puncturing, aspirating and administering medication for subcutaneous fluid after craniotomy, which solves the problem that subcutaneous fluid aspiration requires at least two people to complete, and can improve the success rate and safety of puncture and medication, save labor costs, and improve the safety and comfort of operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] Subcutaneous fluid puncture, aspiration and drug administration device after craniotomy, including:

[0007] A collar, wherein a plurality of fixing sleeves are fixedly connected to the inner periphery of the collar, the plurality of fixing sleeves are equidistantly surrounded by the inner periphery of the collar, an inflatable airbag is fixedly mounted inside the plurality of fixing sleeves, a cotton gasket is arranged on the inner periphery of the plurality of fixing sleeves, and the inflatable airbag presses the cotton gasket against the patient's forehead by inflating, so as to fix the collar on the patient's forehead;

[0008] Two traction arcs are arranged crosswise, and a slide groove is provided at the middle end of the traction arc. An expansion fixing piece is slidably connected at the intersection of the two slide grooves. A cotton gasket is provided on the bottom side of the expansion fixing piece, so that the cotton gasket can be pressed against the affected part of the scalp after surgery to fix the needle for extracting fluid. The outer wall of the collar is fixedly connected to two box bodies, one end of the outer wall of the bottom end of the box body is rotatably connected to a half gear, one end of the bottom of the traction arc is rotatably connected to the outer wall of the collar, and the other end of the bottom of the traction arc is fixedly connected to the half gear. The middle end of the outer wall of the box body is rotatably connected to a gear, one side of the gear is meshed with the half gear, and the other side of the half gear is provided with a clamping piece. An air valve is installed at the output end of the expansion airbag, and the air valve is located on the right side of one of the box bodies. The air valve and one of the clamping pieces are synchronously controlled by a control component.

[0009] The expandable airbag and the expandable fixing part are both inflated by an inflatable ball, a connecting tube 1 is connected between one of the inflatable balls and the input end of the inflatable fixing part, a holding piece is installed on the outer wall of one of the inflatable balls, a fixing groove is provided on the side of the holding piece away from one of the inflatable balls, limiting protrusions are provided on both sides of the opening of the fixing groove for fixing the syringe inside the fixing groove, and a connecting tube 2 is connected between the other inflatable ball and the input end of the expandable airbag.

[0010] Preferably, the inflatable airbag includes a connecting portion sleeved inside the plurality of fixed sleeves, the outer wall of the connecting portion is provided with a plurality of expansion portions, the outer wall of the expansion portion abuts against the outer periphery of the cotton gasket, and the input end of the fixed sleeve is fixedly connected to the second connecting pipe.

[0011] Preferably, the expansion fixing member includes a sliding member located at the intersection of the two slide grooves, the top input end of the sliding member is fixedly connected to a connecting pipe, the bottom output end of the sliding member is installed with a telescopic airbag, and the bottom side of the telescopic airbag is connected to a cotton gasket.

[0012] Preferably, the gas valve comprises a shell fixedly connected to the output end of the connecting portion, an open-hole ball is rotatably connected inside the shell, and a through hole is formed at the middle end of the open-hole ball.

[0013] Preferably, the control component includes a roller rotatably connected to the other end of the outer wall of the box body, a screw is fixedly connected to one side of the roller, an end of the clamping piece close to the ring is threadedly connected to the screw, a rotating rod is fixedly connected to one side of the perforated ball close to one of the box bodies, an end of the rotating rod close to one of the traction arcs passes through the outer wall of the shell and the inner wall of one of the box bodies, and is connected to the inner wall of the box body through a damping shaft, the bottom side of the middle end of the rotating rod is fixedly connected to a limited seat, and the top side of the middle end of the rotating rod is connected to a resistance member through a torsion spring.

[0014] Preferably, a groove is formed on the outer wall of the roller, the bottom side of the abutment member abuts against the top side of the limit seat, and one end of the abutment member close to one of the rollers abuts against the adjacent groove.

[0015] Preferably, the inflatable ball comprises a balloon made of rubber, and the inner wall of the output end and the inner wall of the input end of the balloon are both provided with a one-way valve diaphragm, wherein the output end of one of the balloons is connected to the input end of connecting tube one, and the output end of the other balloon is connected to the input end of connecting tube two.

[0016] Preferably, a torsion axis is provided on a side of the perforated ball away from one of the traction arcs.

[0017] Preferably, an air venting pipe is provided on the outer wall of the sliding member, and an air plug is provided at the opening of the air venting pipe.

[0018] Preferably, the cotton gasket and the fixing sleeve, and the telescopic airbag and the cotton gasket are connected by Velcro.

[0019] Working principle: First, the patient is put on a frame device for auxiliary treatment, and the structure including the expansion airbag connected to the ring is put on the patient's forehead. At this time, the inflatable ball connected to the connecting tube 2 is pressed to pump air into the compressed airbag. When the connecting part of the compressed airbag receives the gas, the gas will be transported to the flattened expansion part, so that the expansion part expands and abuts against the cotton gasket, and force is applied to the cotton gasket to offset the inner periphery of the cotton gasket, reduce the inner peripheral space of the cotton gasket, and fix it on the patient's forehead by transmitting force to the cotton gasket. Then, the syringe, hose and needle used for extracting liquid are prepared and assembled. , squeeze and install the syringe into the fixing groove on the gripping part, fix it, then move the expansion fixing part to the affected part where fluid needs to be extracted, and the needle pierces the effusion. At this time, by compressing the inflatable ball connected to the connecting tube 1, the air in the inflatable ball will enter the interior of the sliding part along the connecting tube 1, and enter the interior of the compressed air bag connected to it along the sliding part, so that the compressed air bag expands, and applies force to the cotton gasket, so that the cotton gasket is against the affected part after the operation, and the needle is fixed. At this time, by turning the roller, the roller rotates, driving the screw connected to it to rotate, so that the screw drives the clamping part. The clamping part is displaced toward the position of the gear, so that the clamping part The component is stuck into the teeth on the gear, forcing the gear to be unable to rotate, and then the half gear connected to the traction arc cannot rotate, and the two traction arcs are fixed and cannot rotate, thereby fixing the position of the expansion fixing component. At this time, the medical staff holds the holding component with one hand, puts the palm close to the inflatable ball, and slowly compresses the inflatable ball according to the amplitude of the fluid extraction, so that the compressed airbag expands, and the cotton gasket follows the swelling of the postoperative effusion to subside and shrink, always abutting against the effusion site to prevent the needle from shifting. After the fluid extraction is completed, the needle is pulled out while the cotton gasket continues to press the extraction site, and the syringe, hose and needle are replaced. The syringe, hose and needle filled with liquid medicine are assembled The needle is inserted under the cotton gasket and pierced into the extraction site to inject the medicine. After the injection, the needle is pulled out to complete the treatment. At this time, the stent device is disassembled, and the roller is turned in the opposite direction to make the clamping part displace in the opposite direction and disengage from the gear. At the same time, one of the rollers adjacent to the resistance part applies force to the resistance part to make it move downward. The force that limits the rotation of the rotating rod by the limit seat makes the open hole ball connected to the rotating rod rotate, and the opened through hole is connected with the openings at both ends of the shell to discharge the gas in the expansion airbag, release the fixation of the expansion airbag on the forehead when it is inflated, and tear off the cotton gasket from the Velcro on the compression airbag and press it on the affected area.

[0020] The present invention provides a device for puncturing, aspirating and administering medication for subcutaneous effusion after craniotomy. It has the following beneficial effects:

[0021] 1. The present invention can cooperate with a single person to perform the suction and injection of subcutaneous fluid after craniotomy. During the suction or injection process, the needle can be assisted in fixing, and the syringe can be operated with both hands. Multiple people are not required to perform stable fluid extraction and injection operations, which improves the convenience of medical treatment and reduces manpower consumption.

[0022] 2. The present invention can flexibly adapt to the fixation of needles at affected parts of the head, and use a grip to fix the syringe. Both hands can synchronously operate the inflatable ball and the syringe to slowly compress the inflatable ball in accordance with the amplitude of the fluid extraction, so that the cotton pad can follow the swelling of the postoperative effusion to subside and shrink, and always abut against the effusion site to prevent the needle from deviating.

[0023] 3. The present invention can simultaneously release the position fixation of the expansion fixing part of the affected part for fluid extraction, thereby offsetting it to release the fixation of the cotton pad and the expansion airbag to the patient's forehead, greatly improving the removal speed of the device and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the sleeve ring of the present invention;

[0027] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A;

[0028] Figure 5 It is a schematic diagram of the structure of the expansion airbag of the present invention;

[0029] Figure 6 It is a schematic diagram of the position of the gas valve of the present invention;

[0030] Figure 7 A schematic diagram of the internal structure of one of the boxes of the present invention;

[0031] Figure 8 It is a schematic diagram of the internal structure of another box body of the present invention;

[0032] Fig. 9 It is a schematic structural diagram of the conflicting member of the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the gripping member of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the telescopic airbag of the present invention;

[0035] Fig.12It is a schematic diagram of the structure of the balloon of the present invention.

[0036] Among them, 1. ring; 2. connecting part; 3. expansion part; 4. fixing sleeve; 5. cotton gasket; 6. traction arc; 7. box body; 8. half gear; 9. gear; 10. snap-fit ​​part; 11. shell; 12. perforated ball; 13. roller; 14. screw; 15. rotating rod; 16. limit seat; 17. resistance; 18. holding part; 19. limit protrusion; 20. syringe; 21. connecting tube 1; 22. sliding part; 23. telescopic airbag; 24. cotton gasket; 25. connecting tube 2; 26. balloon; 27. one-way valve diaphragm. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example:

[0039] The embodiment of the present invention provides a device for puncturing, aspirating and administering medication for subcutaneous effusion after craniotomy, comprising:

[0040] Please see attached Figure 1 -Attached Figure 3 , a ring 1, the inner circumference of the ring 1 is fixedly connected with a plurality of fixing sleeves 4, the plurality of fixing sleeves 4 are equidistantly surrounded by the inner circumference of the ring 1, the inner sleeves of the plurality of fixing sleeves 4 are fixed with expansion airbags, the inner circumferences of the plurality of fixing sleeves 4 are provided with cotton gaskets 5, the expansion airbags expand to push the cotton gaskets 5 against the forehead of the patient, so as to fix the ring 1 on the forehead of the patient;

[0041] Please see attached Figure 3 -Attached Figure 5 The inflatable airbag is composed of a connecting part 2 which is sleeved inside a plurality of fixed sleeves 4 and a plurality of expansion parts 3 which are arranged on the outer wall of the connecting part 2. The outer wall of the expansion part 3 abuts against the outer periphery of the cotton gasket 5. The input end of the fixed sleeve 4 is fixedly connected to the connecting tube 25. When the connecting part 2 receives gas, the gas will be transported to the deflated expansion part 3, so that the expansion part 3 expands and abuts against the cotton gasket 5, and a force is applied to the cotton gasket 5 to offset the inner periphery of the cotton gasket 5, thereby reducing the inner peripheral space of the cotton gasket 5, and by transmitting force to the cotton gasket 5, it abuts against the forehead of the patient. Since the cotton gasket 5 is made of cotton and has a rough surface, it can prevent the ring 1 and the connected structure from slipping off the forehead together with the force applied to the patient's forehead, thereby improving stability.

[0042] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 6 , two traction arcs 6 are arranged crosswise, a slide groove is provided at the middle end of the traction arc 6, an expansion fixing piece is slidably connected at the intersection of the two slide grooves, a cotton gasket 24 is provided on the bottom side, so that the cotton gasket 24 can be pressed against the affected part of the scalp after surgery to fix the needle for extracting fluid, the outer wall of the ring 1 is fixedly connected to two box bodies 7, one end of the outer wall of the bottom end of the box body 7 is rotatably connected to a half gear 8, one end of the bottom of the traction arc 6 is rotatably connected to the outer wall of the ring 1, and the other end of the bottom of the traction arc 6 is fixedly connected to the half gear 8, the middle end of the outer wall of the box body 7 is rotatably connected to a gear 9, one side of the gear 9 is meshed with the half gear 8, and the other side of the half gear 8 is provided with a clamping piece 10, and the clamping piece 10 is slidably connected to the box body 7, and an air valve is installed at the output end of the expansion airbag, and the air valve is located on the right side of one of the box bodies 7;

[0043] Specifically, when the expansion fixing member is moved, the expansion fixing member will slide in the two slide grooves and drive the two traction arcs 6 to rotate. During the rotation of the traction arc 6, the half gear 8 connected thereto will mesh with the rotating gear 9, causing the gear 9 to rotate synchronously.

[0044] Please see attached Figure 1 , Attachment Figure 2 and attached Fig.11 The expansion fixing part is composed of a sliding part 22 located at the intersection of two slide grooves and a telescopic airbag 23 installed at the bottom output end of the sliding part 22. The top input end of the sliding part 22 is fixedly connected to the connecting tube 21, and the bottom side of the telescopic airbag 23 is connected to the cotton gasket 24. When the telescopic airbag 23 expands, force will be applied to the cotton gasket 24, so that the cotton gasket 24 will follow the swelling of the postoperative effusion to subside and shrink, and always abut against the effusion part to prevent the needle from deviating. The outer wall of the sliding part 22 is provided with an air release pipe, and an air plug is provided at the opening of the air release pipe. By pulling out the air plug, the air injected into the telescopic airbag 23 can be released, so that the telescopic airbag releases the abutment force on the cotton gasket 24.

[0045] Please see attached Figure 5 , Attachment Fig.10 and attached Fig.12The inflatable airbag and the inflatable fixing member are both inflated by an inflatable ball. The inflatable ball is composed of a rubber balloon 26. The inner wall of the output end and the inner wall of the input end of the balloon 26 are both provided with a one-way valve diaphragm 27. The output end of one of the balloons 26 is connected to the input end of the connecting tube 1 21, and the output end of the other balloon 26 is connected to the input end of the connecting tube 2 25. A connecting tube 1 21 is connected between one of the inflatable balls and the input end of the inflatable fixing member. A gripping member 18 is installed on the outer wall of one of the inflatable balls. The gripping member 18 is away from one of the inflatable balls. A fixing groove is provided on one side of the inflatable ball, and limiting protrusions 19 are provided on both sides of the opening of the fixing groove. The gripping member 18 is made of plastic, so it has a certain elasticity. When the syringe 20 is squeezed into the fixing groove, the fixing groove will deviate and deform to a certain extent, so that the opening of the fixing groove is expanded, and the syringe 20 is stuck in the fixing groove. At this time, the fixing groove recovers due to elasticity, and the opening is reduced, and the limiting protrusion 19 is used to fix the syringe 20 inside the fixing groove. A connecting pipe 25 is connected between the other inflatable ball and the input end of the inflation airbag;

[0046] Specifically, the air inlet of the balloon 26 can take in air in one direction when the balloon 26 is compressed through the one-way valve diaphragm 27, and cannot let out air due to the air pressure in the balloon 26. The one-way valve diaphragm 27 at the air outlet of the balloon 26 has the opposite function, and is responsible for letting out air in one direction when the balloon 26 is compressed, so as to prevent gas from flowing back and leaking. By compressing the balloon 26 connected to the connecting tube 1 21, the air in the balloon 26 will enter the interior of the sliding member 22 along the connecting tube 1 21, and enter the interior of the compressed airbag 23 connected thereto along the sliding member 22. By compressing the balloon 26 connected to the connecting tube 25, the air in the balloon 26 will enter the interior of the expansion airbag along the connecting tube 25.

[0047] Please see attached Figure 7 -Attached Fig. 9, a screw 14 is fixedly connected to one side of the roller 13 rotatably connected to the other end of the outer wall of the box body 7, the end of the clamping member 10 close to the collar 1 is threadedly connected to the screw 14, the open hole ball 12 is fixedly connected to the side of one of the box bodies 7 with a rotating rod 15, the end of the rotating rod 15 close to one of the traction arcs 6 penetrates the outer wall of the shell 11 and the inner wall of one of the box bodies 7, and is connected to the inner wall of the box body 7 through a damping shaft, the bottom side of the middle end of the rotating rod 15 is fixedly connected to the limited seat 16, and the top side of the middle end of the rotating rod 15 is connected to a resistance member 17 through a torsion spring, The outer wall of the roller 13 is provided with a groove, the bottom side of the abutment 17 abuts against the top side of the limit seat 16, and one end of the abutment 17 close to one of the rollers 13 abuts against the adjacent groove. The groove is used to clamp the abutment 17 and to increase the friction with the finger when the roller 13 is turned, so that it is easier to turn the roller 13. The air valve is mainly composed of a shell 11 fixedly connected to the output end of the connecting part 2. A through hole is provided at the middle end of the perforated ball 12 rotatably connected inside the shell 11, and a torsion shaft is provided on the side of the perforated ball 12 away from one of the traction arcs 6;

[0048] Specifically, after the cotton gasket 24 is positioned and the needle is pressed, the roller 13 is turned to rotate, driving the screw 14 connected thereto to rotate, so that the screw 14 drives the clamping member 10, so that the clamping member 10 is displaced toward the position of the gear 9, so that the clamping member 10 is clamped into the teeth on the gear 9, forcing the gear 9 to be unable to rotate, and then the half gear 8 connected to the traction arc 6 is unable to rotate. The two traction arcs 6 are fixed and cannot rotate, thereby fixing the position of the expansion fixing member. When one of the rollers 13 rotates, the groove on its surface will apply force to the adjacent resistance member 17, causing it to rotate upward on the rotating rod 15, stretching the torsion spring, and then resetting it, cooperating with the damping shaft, so that The rotating rod 15 connected to the perforated ball 12 cannot rotate when the roller 13 is turned while the fixed gear 9 is fixed, so as to prevent the perforated ball 12 from rotating to open the exhaust port of the inflatable airbag. After the liquid extraction and drug injection are completed, the roller 13 can be turned in the opposite direction to make the clamping member 10 displace in the opposite direction and disengage from the gear 9. At the same time, one of the rollers 13 adjacent to the abutment 17 applies force to the abutment 17 to cause it to move downward. The force that limits the rotation of the rotating rod 15 by the limit seat 16 makes the perforated ball 12 connected to the rotating rod 15 rotate, and the opened through hole is connected to the openings at both ends of the shell 11, so that the gas in the inflatable airbag is discharged. Afterwards, the perforated ball 12 can be reset by twisting the torsion shaft connected to the perforated ball 12 to close the air valve.

[0049] The cotton gasket 5 and the cotton gasket 24 are both disinfected, and the cotton gasket 5 and the fixed sleeve 4 and the telescopic airbag 23 and the cotton gasket 24 are connected by Velcro. The Velcro is a type with barbs, so as to adhere to the cotton gasket 5 and the cotton gasket 24, which have uneven and fuzzy surfaces. By conveniently tearing off and adhering and fixing, the dirty and used cotton gasket 5 and the cotton gasket 24 can be quickly replaced, thereby meeting the medical hygiene standards.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy, characterized in that: include: A collar (1), wherein a plurality of fixing sleeves (4) are fixedly connected to the inner periphery of the collar (1), the plurality of fixing sleeves (4) are equidistantly surrounded on the inner periphery of the collar (1), an expansion air bag is fixedly mounted inside the plurality of fixing sleeves (4), and a cotton gasket (5) is arranged on the inner periphery of the plurality of fixing sleeves (4), and the expansion air bag presses the cotton gasket (5) against the forehead of the patient through expansion, so as to fix the collar (1) on the forehead of the patient; Two traction arcs (6) are arranged crosswise, and a slide groove is provided at the middle end of the traction arc (6). An expansion fixing piece is slidably connected at the intersection of the two slide grooves. A cotton pad (24) is provided on the bottom side of the expansion fixing piece so that the cotton pad (24) can be pressed against the affected part after scalp surgery to fix the needle for extracting fluid. The outer wall of the collar (1) is fixedly connected to two box bodies (7). One end of the outer wall of the bottom end of the box body (7) is rotatably connected to a half gear (8). The bottom end of the traction arc (6) is connected to the collar (1). ) is rotatably connected to the outer wall of the box body (7), the other end of the bottom of the traction arc (6) is fixedly connected to the half gear (8), the middle end of the outer wall of the box body (7) is rotatably connected to a gear (9), one side of the gear (9) is meshingly connected to the half gear (8), and the other side of the half gear (8) is provided with a clamping piece (10), the output end of the expansion airbag is installed with an air valve, the air valve is located on the right side of one of the box bodies (7), and the air valve and one of the clamping pieces (10) are synchronously controlled by a control component; The inflatable airbag and the inflatable fixing member are both inflated by an inflatable ball, a connecting tube 1 (21) is connected between one of the inflatable balls and the input end of the inflatable fixing member, a holding member (18) is installed on the outer wall of one of the inflatable balls, a fixing groove is provided on the side of the holding member (18) away from one of the inflatable balls, and limiting protrusions (19) are provided on both sides of the opening of the fixing groove for fixing the syringe (20) inside the fixing groove, and a connecting tube 2 (25) is connected between the other inflatable ball and the input end of the inflatable airbag.

2. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 1, characterized in that: The inflatable airbag comprises a connecting portion (2) which is sleeved inside a plurality of the fixing sleeves (4); the outer wall of the connecting portion (2) is provided with a plurality of inflatable portions (3); the outer wall of the inflatable portion (3) abuts against the outer periphery of the cotton gasket (5); and the input end of the fixing sleeve (4) is fixedly connected to the second connecting pipe (25).

3. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 1, characterized in that: The expansion fixing member comprises a sliding member (22) located at the intersection of the two sliding grooves, the top input end of the sliding member (22) is fixedly connected to the connecting pipe 1 (21), the bottom output end of the sliding member (22) is installed with a telescopic airbag (23), and the bottom side of the telescopic airbag (23) is connected to a cotton gasket (24).

4. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 2, characterized in that: The gas valve comprises a shell (11) fixedly connected to the output end of the connecting portion (2), an open-hole ball (12) is rotatably connected inside the shell (11), and a through hole is formed at the middle end of the open-hole ball (12).

5. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 4, characterized in that: The control component comprises a roller (13) rotatably connected to the other end of the outer wall of the box body (7); a screw (14) is fixedly connected to one side of the roller (13); an end of the clamping member (10) close to the collar (1) is threadedly connected to the screw (14); a rotating rod (15) is fixedly connected to one side of the perforated ball (12) close to one of the box bodies (7); an end of the rotating rod (15) close to one of the traction arcs (6) penetrates the outer wall of the shell (11) and the inner wall of one of the box bodies (7), and is connected to the inner wall of the box body (7) via a damping shaft; the bottom side of the middle end of the rotating rod (15) is fixedly connected to a limiting seat (16); and the top side of the middle end of the rotating rod (15) is connected to a resisting member (17) via a torsion spring.

6. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy according to claim 5, characterized in that: The outer wall of the roller (13) is provided with a groove, the bottom side of the abutment member (17) abuts against the top side of the limiting seat (16), and one end of the abutment member (17) close to one of the rollers (13) abuts against the adjacent groove.

7. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 1, characterized in that: The inflatable ball comprises a balloon (26) made of rubber, and the inner wall of the output end and the inner wall of the input end of the balloon (26) are both provided with a one-way valve diaphragm (27), wherein the output end of one of the balloons (26) is connected to the input end of the connecting tube 1 (21), and the output end of the other balloon (26) is connected to the input end of the connecting tube 2 (25).

8. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy according to claim 4, characterized in that: A torsion axis is arranged on a side of the perforated ball (12) away from one of the traction arcs (6).

9. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 3, characterized in that: The outer wall of the sliding member (22) is provided with an air release pipe, and an air plug is provided at the opening of the air release pipe.

10. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 3, characterized in that: The cotton gasket (5) and the fixing sleeve (4) as well as the telescopic airbag (23) and the cotton gasket (24) are connected by Velcro.

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