Subcutaneous fluid puncture, aspiration and drug delivery device after craniotomy

Abstract

The present invention relates to the field of perioperative management technology, and provides a device for puncturing, aspirating, and administering subcutaneous fluid after craniotomy, comprising: a collar, the inner circumference of which is fixedly connected to a plurality of fixing sleeves, the plurality of fixing sleeves being equidistantly surrounded by the inner circumference of the collar, the inner sleeves of the plurality of fixing sleeves being fixed with an inflatable airbag, the inner circumferences of the plurality of fixing sleeves being provided with a cotton gasket, the inflatable airbags being inflated to press the cotton gasket against the patient's forehead to fix the collar on the patient's forehead; two traction arcs arranged in a cross-staggered manner, the middle ends of the traction arcs being provided with a slide groove, and the intersection of the two slide grooves being slidably connected to an expansion fixing piece. The present invention can cooperate with a single person to perform subcutaneous fluid aspiration and drug injection after craniotomy. During the aspiration or drug injection process, the needle can be fixed to assist in fixing the needle, and the syringe can be operated with both hands. There is no need for multiple people to perform stable fluid extraction and drug injection operations, thereby improving medical convenience and reducing manpower consumption.

Description

Technical Field

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

[0002] A craniotomy is a surgical procedure that involves opening the skull to access the brain. It is commonly used to treat various brain tumors, brain aneurysms, brain abscesses, intracranial hematomas, brain injuries, and other brain disorders. During the procedure, the surgeon makes one or more incisions in the patient's scalp, removes a small bone flap, cuts open the dura mater to expose the brain, performs the necessary surgical procedures, then repairs the dura mater, replaces the skull, and sutures the scalp. Subcutaneous fluid accumulation 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 fluid accumulation. The symptoms are scalp swelling at the surgical site, formation of a lump, cerebrospinal fluid exudation in the lump or soft tissue damage or inflammatory reaction exudate in the surgical area, which will cause persistent headaches and fever in patients. Especially when there is a lot of fluid accumulation, the subcutaneous fluid accumulated in such patients is drained away, 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 fluid accumulation.

[0003] The most common treatment method for subcutaneous fluid collection is to use a medical syringe with a scalp needle and a soft tube for suction. After suction, the syringe is removed 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 and avoids displacement, and stable fluid extraction and injection operations are performed. For medical safety, this process requires at least two people to complete (one to suction and one to fix the needle) to ensure the basic fluid extraction operation. Once the needle shifts, it will cause suction failure and the needle needs to be adjusted again. Adjusting the needle increases the risk of subcutaneous bleeding. Once the subcutaneous artery is punctured, it will cause severe consequences such as 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 flow of suction and drug administration during this operation. The use of this device can also reduce manpower consumption, and a doctor can operate alone. Therefore, a device for puncturing, aspirating and administering subcutaneous fluid after craniotomy is needed to solve this problem. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a device for puncturing, aspirating and administering 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 administration, 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 delivery device after craniotomy, including:

[0007] A collar, wherein a plurality of fixing sleeves are fixedly connected to the inner circumference of the collar, the plurality of fixing sleeves being equidistantly surrounded by the inner circumference of the collar, an inflation airbag being fixedly sleeved inside the plurality of fixing sleeves, and a cotton gasket being provided on the inner circumference of the plurality of fixing sleeves, wherein the inflation airbag presses the cotton gasket against the patient's forehead upon expansion, thereby fixing 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 to fix the needle for extracting fluid on the affected part after scalp surgery by expansion. The outer wall of the collar is fixedly connected to two box bodies, and 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 inflatable airbag and the inflatable fixing piece 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 piece, a gripping piece is installed on the outer wall of one of the inflatable balls, a fixing groove is provided on the side of the gripping 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 inflatable airbag.

[0010] Preferably, the inflatable airbag includes a connecting portion which is 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 sliding grooves, the top input end of the sliding member is fixedly connected to the 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 the cotton gasket.

[0012] Preferably, the gas valve includes a shell fixedly connected to the output end of the connecting portion, an open-hole ball is rotatably connected to the interior of 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, the end of the clamping piece close to the ring is threadedly connected to the screw, the open-hole ball is fixedly connected to a rotating rod on one side close to one of the box bodies, the 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 the limiting 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 includes 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, 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 vent is provided on the outer wall of the sliding member, and an air plug is provided at the opening of the air vent.

[0018] Preferably, the cotton washer and the fixing sleeve, and the telescopic airbag and the cotton gasket are both 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 contacts the cotton gasket, and force is applied to the cotton gasket to offset the inner periphery of the cotton gasket, reducing the inner periphery space of the cotton gasket, and by transmitting force to the cotton gasket, it is fixed on the patient's forehead. 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 grip and fix it, then move the expansion fixing part to the affected area where fluid needs to be extracted, and the needle penetrates the fluid accumulation. 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 then enter the interior of the compressed air bag connected to it along the sliding part, so that the compressed air bag expands, exerts force on the cotton gasket, so that the cotton gasket presses against the affected area after surgery, fixes the needle, and 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, causing the clamping part to move toward the position of the gear, so that the clamping part The component is stuck in the teeth of the gear, forcing the gear to be unable to rotate, and then the half gear connected to the traction arc cannot rotate. 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 gripping 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 to expand the compressed airbag, so that 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 deviating. After the fluid extraction is completed, under the premise of continuously pressing the cotton gasket on the extraction site, the needle is pulled out, the syringe, hose and needle are replaced, and the syringe, hose and needle filled with liquid 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 bracket device is disassembled. By turning the roller in the opposite direction, the clamping part is displaced in the opposite direction and disengaged from the gear. At the same time, one of the rollers adjacent to the resistance part exerts force on the resistance part to cause it to move downward. The force that limits the rotation of the rotating rod by the limit seat causes the open ball connected to the rotating rod to rotate. The opened through hole is connected to the openings at both ends of the shell, so that the gas in the expansion airbag is discharged, and the fixation of the expansion airbag on the forehead is released when the expansion airbag is inflated. The cotton gasket is torn off the Velcro on the compression airbag and pressed on the affected area.

[0020] The present invention provides a device for puncturing, aspirating, and administering medication to subcutaneous fluid 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. There is no need for multiple people 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 in affected areas of the head, and use a grip to fix the syringe. The inflatable ball and the syringe are operated synchronously with both hands to slowly compress the inflatable ball following the amplitude of the fluid extraction, so that the cotton gasket follows the swelling of the postoperative effusion to subside and shrink, and always abuts against the effusion area to prevent the needle from deflecting.

[0023] 3. The present invention can simultaneously release the position fixation of the expansion fixing part of the affected area for fluid extraction, thereby offsetting it to release the fixation of the cotton gasket and the expansion airbag on 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 collar 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 structural diagram 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 This is a schematic diagram of the internal structure of another box body of the present invention;

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

[0033] Figure 10 is a schematic structural diagram of the gripping member of the present invention;

[0034] Figure 11 It is a schematic structural diagram of the telescopic airbag of the present invention;

[0035] Figure 12Schematic 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 clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts 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 to subcutaneous fluid after craniotomy, comprising:

[0040] Please see the attached Figure 1 -Attached Figure 3 , 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 internal 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 are expanded to press the cotton gaskets 5 against the patient's forehead to fix the ring 1 on the patient's forehead;

[0041] Please see the 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 is in contact with the outer periphery of the cotton gasket 5. The input end of the fixed sleeve 4 is fixedly connected to the connecting pipe 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 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 patient's forehead. 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 by cooperating with the force applied to the patient's forehead, thereby improving stability.

[0042] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 6 , two traction arcs 6 are arranged crosswise, and a slide groove is opened at the middle end of the traction arc 6. The intersection of the two slide grooves is slidably connected with an expansion fixing piece, and a cotton gasket 24 is provided on the bottom side to fix the needle for extracting fluid from the affected part of the scalp through expansion. The outer wall of the collar 1 is fixedly connected to two box bodies 7, and 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 rotatably connected to the outer wall of the collar 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, which is slidably connected to the box body 7. 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 engage with the rotating gear 9, causing the gear 9 to rotate synchronously.

[0044] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 11 The expansion fixing part is composed of a sliding part 22 located at the intersection of the 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 area to prevent the needle from deviating. The outer wall of the sliding part 22 is provided with an air release tube, and an air plug is provided at the opening of the air release tube. 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 the attached Figure 5 , Attachment Figure 10 and attached Figure 12The inflatable airbag and the inflatable fixing member are both inflated by the 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 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 and therefore has a certain degree of elasticity. When the syringe 20 is squeezed into the fixing groove, the fixing groove will deflect and deform to a certain extent, causing the opening of the fixing groove to expand, so that 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 protrusions 19 are 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 inlet of balloon 26, through the action of a one-way valve diaphragm 27, allows air to flow in one direction when balloon 26 is deflated. However, due to the air pressure within balloon 26, air cannot escape. The one-way valve diaphragm 27 at the outlet of balloon 26 acts in the opposite manner, allowing air to escape in one direction when compressing balloon 26, thereby preventing gas from flowing back and leaking. By compressing balloon 26 connected to connecting tube 1 21 , the air within balloon 26 will flow along connecting tube 1 21 into the interior of slider 22, and then along slider 22 into the interior of the compressed airbag 23 connected thereto. By compressing balloon 26 connected to connecting tube 25 , the air within balloon 26 will flow along connecting tube 25 into the interior of the expanded airbag.

[0047] Please see the attached Figure 7 -Attached Figure 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, and 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 passes through 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 the contact member 17 through a torsion spring. A groove is formed on the outer wall of the roller 13. The bottom side of the resistance member 17 abuts against the top side of the limit seat 16. The end of the resistance member 17 close to one of the rollers 13 abuts against the adjacent groove. The groove is used to both clamp the resistance member 17 and increase the friction with the finger when the roller 13 is turned, thereby making it 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 formed in the middle end of the open ball 12 rotatably connected to the inside of the shell 11. A torsion axis is provided on the side of the open 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, thereby causing the screw 14 to drive the clamping member 10. The clamping member 10 is displaced toward the position of the gear 9, so that the clamping member 10 is engaged with 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 fixture. 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, 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 in operation, thereby preventing 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 disengage the clamping member 10 from the gear 9, and at the same time, one of the rollers 13 adjacent to the resistance member 17 applies force to the resistance member 17 to cause it to move downward. The force that limits the rotation of the rotating rod 15 is limited by the limit seat 16, and then the perforated ball 12 connected to the rotating rod 15 is rotated, and the through hole opened is connected to the openings at both ends of the shell 11, so that the gas in the inflated 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 sterilized, 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, which can 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 medical hygiene standards.

[0050] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 airbag is fixedly mounted inside the plurality of fixing sleeves (4), and a cotton gasket (5) is provided on the inner periphery of the plurality of fixing sleeves (4), and the expansion airbag presses the cotton gasket (5) against the patient's forehead by expansion, thereby fixing the collar (1) on the patient's forehead; 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 to the intersection of the two slide grooves. A cotton gasket (24) is provided on the bottom side of the expansion fixing piece so that the cotton gasket (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 two box bodies (7) is rotatably connected to a half gear (8). The bottom end of the traction arc (6) is connected to the collar ( 1), 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 member (10), the output end of the expansion airbag is provided 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 members (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 gripping member (18) is installed on the outer wall of one of the inflatable balls, a fixing groove is provided on the side of the gripping 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; The expansion airbag includes a communication portion (2) sleeved inside a plurality of the fixing sleeves (4); The gas valve comprises a housing (11) fixedly connected to the output end of the communication portion (2), an open-hole ball (12) is rotatably connected inside the housing (11), and a through hole is formed at the middle end of the open-hole ball (12); The control assembly includes 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), the hole ball (12) is fixedly connected to a rotating rod (15) close to one side of the box body (7), the bottom side of the middle end of the rotating rod (15) is fixedly connected to the limiting seat (16), the top side of the middle end of the rotating rod (15) is connected to a resisting member (17) through a torsion spring, the outer wall of the roller (13) is provided with a groove, the bottom side of the resisting member (17) abuts against the top side of the limiting seat (16), and the end of the resisting member (17) close to one of the rollers (13) abuts against the adjacent groove.

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

3. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy 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 (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 the cotton gasket (24).

4. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 1, characterized in that: One end of the rotating rod (15) close to one of the traction arcs (6) passes through 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.

5. The post-craniotomy subcutaneous fluid puncture, aspiration and drug delivery device according to claim 1, characterized in that: The inflatable ball includes 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), the output end of one of the balloons (26) is connected to the input end of the connecting tube (21), and the output end of the other balloon (26) is connected to the input end of the connecting tube (25).

6. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy according to claim 1, characterized in that: A torsion axis is provided on one side of the perforated ball (12) away from one of the traction arcs (6).

7. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy 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.

8. The device for puncture, aspiration and drug administration of subcutaneous fluid after craniotomy according to claim 3, characterized in that: The cotton washer (5) and the fixing sleeve (4) as well as the telescopic airbag (23) and the cotton pad (24) are connected by Velcro.

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