Ommuya sac scalp external drainage device

Abstract

The invention discloses an omaya sac scalp external drainage device, and belongs to the technical field of medical instruments, the omaya sac scalp external drainage device comprises a fixing shell, and the upper surface of the fixing shell is fixedly connected with an adjusting box; through the arranged adjusting mechanism, a medical worker can accurately adjust the angle and the direction of the puncture needle, and the rotating handle is operated to rotate to drive the adjusting block to accurately and transversely move and rotate in the adjusting groove, so that the puncture needle can be aligned with a sac part according to the accurate angle and the accurate direction to puncture the sac part; meanwhile, the situation that the puncture needle shakes drastically in the puncture process can be prevented through sliding fit of the insertion hole and the fixing rod, the puncture accuracy and safety can be improved by adjusting the puncture needle in multiple directions through the adjusting mechanism, the puncture efficiency is improved, in addition, the device can be stably fixed to the scalp, and the use effect is good. The omaya bag can continuously drain cerebrospinal fluid, and the problem that the omaya bag falls off due to the movement of the head during external drainage of the omaya bag is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an ommaya cyst scalp external drainage device. Background Art

[0002] The ommaya cyst is a commonly used intracranial implant in neurosurgery. It consists of a silicone storage cyst implanted under the scalp with a flat bottom end and a silicone tube with one end connected to the storage cyst and the other end placed in the ventricle or lesion. When in use, a syringe can be connected with a needle or an intravenous infusion needle, and the cerebrospinal fluid can be extracted or continuously drained by puncturing the storage cyst from the scalp. Drugs can also be injected into the intracranial cavity through the storage cyst. When fixing the needle, usually a degreased sterile cotton ball is placed under the needle, and it is fixed with medical tape, transparent film patch or medical dressing. Some units also adopt the suture fixation method;

[0003] After the needle in the existing ommaya cyst external drainage device punctures into the storage cyst, it generally cannot be better fixed, so that the needle is likely to fall off, resulting in unsmooth drainage and unable to provide stable and effective cerebrospinal fluid drainage for patients. Summary of the Invention

[0004] Object of the Invention: The object of the present invention is to solve the problem that the needle in the existing ommaya cyst external drainage device generally cannot be better fixed after puncturing into the storage cyst, and is likely to fall off.

[0005] Technical Solution: The ommaya cyst scalp external drainage device includes a fixing shell. The upper surface of the fixing shell is fixedly connected with an adjusting box. An adjusting mechanism is arranged in front of the adjusting box. A through-type adjusting groove is opened on the upper surface of the adjusting box. An adjusting block is arranged inside the adjusting groove. A through-type insertion hole is opened on the upper surface of the adjusting block. A fixing rod is arranged inside the insertion hole. The bottom end of the fixing rod extends below the fixing shell and is detachably fixed with a puncture needle;

[0006] A first fixing belt is fixedly connected to the left side of the lower surface of the fixing shell, and a second fixing belt is fixedly connected to the right side of the lower surface of the fixing shell. A male magic tape is fixedly connected to the inner side of the first fixing belt, and a female magic tape is fixedly connected to the outer side of the second fixing belt.

[0007] Furthermore, a through-type extending hole is opened on the outer side wall of the fixing shell. A communicating hose is integrally formed on the outer side of the puncture needle. One end of the communicating hose away from the puncture needle passes through the extending hole and is detachably connected with a drainage hose. A drainage bag is arranged at one end of the drainage hose away from the extending hole.

[0008] Furthermore, adjusting bolts are provided in front of and behind the adjusting block. The opposite ends of the two adjusting bolts both extend into the insertion hole, and limiting clamping plates are rotatably connected to both of them through rotating shafts.

[0009] Furthermore, the adjusting mechanism includes a rotating handle which is located in front of the adjusting box. A sleeve rod is fixedly connected to the center of the rear surface of the rotating handle. A sliding rod is slidably connected inside the sleeve rod. Limiting sliding grooves are provided on the inner front surface and the inner rear surface of the adjusting groove. An angle control groove is provided on the front surface of the adjusting block. The rear end of the sliding rod is rotatably connected to the inner rear surface of the angle control groove through a rotating shaft. A control gear is fixedly connected to the outer side wall of the sleeve rod. A rack plate is fixedly connected to the inner lower surface of the limiting sliding groove in front of the adjusting groove. A first spring is fixedly connected between the front end of the sliding rod and the inside of the sleeve rod. An adjusting transverse groove is provided on the inner front surface of the limiting sliding groove in front of the adjusting groove and penetrates through.

[0010] Furthermore, a guiding block is slidably connected to the inside of the limiting sliding groove behind the adjusting groove. The front surface of the guiding block is rotatably connected to the rear surface of the adjusting block through a rotating shaft.

[0011] Furthermore, a locking plate is provided on the outer side wall of the sleeve rod and in front of the adjusting box. An extrusion cavity is integrally formed above the inside of the locking plate. A clamping block is slidably connected to the inside of the extrusion cavity. A resisting rod is fixedly connected to the center of the front surface of the clamping block. The front end of the resisting rod is in contact with the rear surface of the rotating handle. A plurality of second springs are fixedly connected between the front surface of the clamping block and the inner front surface of the extrusion cavity. A plurality of insertion holes one are provided on the front surface of the adjusting box. The rear end of the clamping block extends into the insertion hole one at the center of the front surface of the adjusting box.

[0012] Furthermore, scale lines are provided on the front surface of the drainage bag.

[0013] Furthermore, guiding grooves are provided above and below the plurality of insertion holes one in front of the adjusting box. Two guiding strips are fixedly connected to the rear surface of the locking plate. The outer side walls of the two guiding strips are respectively slidably connected to the inside of the two guiding grooves.

[0014] Further, a plurality of second insertion holes are formed in the outer side wall of the locking plate, and the plurality of second insertion holes are distributed in a circumferential shape. An upper portion inside the rotating handle is integrally formed with a pressing cavity, and an arc-shaped piston plate is slidably connected inside the pressing cavity. An upper surface of the arc-shaped piston plate is fixedly connected with a pressing block, and a top end of the pressing block extends above the rotating handle. A plurality of third springs are fixedly connected between a lower surface of the arc-shaped piston plate and an upper surface inside the pressing cavity. A ventilation cavity is formed inside the rotating handle and below the pressing cavity, and a piston column is slidably connected inside the ventilation cavity. A rear end of the piston column extends into the second insertion hole above the locking plate. The inside of the pressing cavity is communicated with the inside of the ventilation cavity. An inner gear is fixedly connected to an inner side wall of the angle control groove, and an outer side wall of the control gear is meshed with an inner side wall of the inner gear.

[0015] Beneficial effects: Through the provided adjusting mechanism, medical staff can accurately adjust the angle and orientation of the puncture needle. By operating the rotating handle to rotate, the adjusting block is driven to accurately move horizontally and rotate in the adjusting groove, so that the puncture needle can puncture the cyst part at an accurate angle and orientation. At the same time, through the sliding fit between the insertion hole and the fixing rod, it can prevent the puncture needle from shaking greatly during the puncture process, avoiding unexpected situations. The multi-directional adjustment of the puncture needle by the adjusting mechanism improves the accuracy and safety of the puncture and the puncture efficiency.

[0016] By rotating the two provided adjusting bolts, the two limiting clamping plates can clamp the fixing rod in the insertion hole, further restricting the displacement of the puncture needle in all directions, complementing the fixing structure of the overall device, and ensuring that the puncture needle remains stable during the puncture and subsequent drainage stages in multiple directions, not easily falling off, further ensuring that the drainage operation can be carried out continuously and safely. At the same time, both the puncture needle and the fixing rod are commonly used disposable puncture devices on the market, which is convenient for procurement and can be quickly matched with this external drainage device, increasing the practicability and convenience of the device.

[0017] By providing the fixed shell and the connected first fixing belt and second fixing belt, and using the cooperation of the male magic tape and the female magic tape, the entire drainage device can be firmly fixed at the pre-embedded omaya cyst part of the patient. After the puncture needle punctures into the liquid storage cyst, the overall drainage device is relatively stable, effectively avoiding the needle from falling off easily due to external forces and other factors, ensuring the continuity and effectiveness of the drainage operation, improving the safety and reliability during the use of the device. Then, the position of the puncture needle can be further adjusted through the adjusting mechanism, further ensuring the accuracy of the puncture.

[0018] After the angle adjustment of the adjusting block is completed, the adjusted angle can be locked quickly and reliably through the cooperation between the locking block on the locking plate and the plug hole 1 of the adjusting box, as well as the cooperation between the piston column and the plug hole 2, thereby ensuring the stability of the angle after adjustment, avoiding accidental changes in the angle in subsequent operations that affect the drainage effect, and improving the convenience and stability of the operation of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall oblique view and upward view of the structure of the present invention;

[0020] Figure 2 It is a schematic cross-sectional view of the regulating box of the present invention;

[0021] Figure 3 is a front view structural schematic diagram of the locking plate of the present invention;

[0022] Figure 4 The present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 The present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the figure: 1, fixed shell; 2, adjustment box; 3, scale line; 4, adjustment mechanism; 5, adjustment slot; 6, adjustment block; 7, insertion hole; 8, fixed rod; 9, puncture needle; 10, fixing belt 1; 11, fixing belt 2; 12, sub-velcro; 13, main Velcro; 14, drainage hose; 15, drainage bag; 16, adjustment bolt; 17, limit splint; 18, connecting hose; 19, extension hole; 401, turning handle; 402, sleeve rod; 403, sliding rod; 404, limit slide groove; 405, angle control Groove; 406, control gear; 407, rack plate; 408, spring one; 409, guide block; 410, locking plate; 411, extrusion chamber; 412, engaging block; 413, resistance rod; 414, spring two; 415, plug-in hole one; 416, guide groove; 417, guide strip; 418, plug-in hole two; 419, pressing chamber; 420, arc-shaped piston plate; 421, pressing block; 422, spring three; 423, ventilation chamber; 424, piston column; 425, internal gear; 426, adjusting horizontal groove. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figures 1-4As shown in the figure, an external drainage device for the Ommaya reservoir on the scalp is provided, including a fixing shell 1. The upper surface of the fixing shell 1 is fixedly connected with an adjustment box 2. An adjustment mechanism 4 is arranged in front of the adjustment box 2. A through adjustment slot 5 is opened on the upper surface of the adjustment box 2. An adjustment block 6 is arranged inside the adjustment slot 5. A through insertion hole 7 is opened on the upper surface of the adjustment block 6. A fixing rod 8 is arranged inside the insertion hole 7. The bottom end of the fixing rod 8 extends below the fixing shell 1 and is provided with a puncture needle 9. A through extension hole 19 is opened on the outer side wall of the fixing shell 1. A connecting hose 18 is integrally formed on the outer side of the puncture needle 9. One end of the connecting hose 18 away from the puncture needle 9 passes through the extension hole 19 and is detachably connected with a drainage hose 14. One end of the drainage hose 14 away from the extension hole 19 is provided with a drainage bag 15. Adjustment bolts 16 are arranged in front of and behind the adjustment block 6. The opposite ends of the two adjustment bolts 16 both extend into the insertion hole 7 and are both rotatably connected with a limiting clamping plate 17 through a rotating shaft;

[0028] During use, after wearing the fixing shell 1 on the reservoir part of the patient and fixing it, the movement of the adjustment block 6 inside the adjustment slot 5 can be controlled through the provided adjustment mechanism 4. When the adjustment block 6 moves or its angle changes, the position of the insertion hole 7 will change. Then, the doctor inserts the disposable puncture needle 9 and the fixing rod 8 into the insertion hole 7 at the bottom of the fixing shell 1. When puncturing, the doctor can observe the depth of the puncture needle 9 inserted according to the imaging equipment. Then, by rotating the two adjustment bolts 16, the two limiting clamping plates 17 move relatively to fix the fixing rod 8, and thus the puncture needle 9 can be fixed to prevent loosening or displacement during the drainage process. At the same time, the distance reserved above the fixing shell 1 after the fixing rod 8 is inserted into the insertion hole 7 is about 2 cm, which can prevent the external device from accidentally touching the fixing rod 8 and ensure that the device can drain normally. Then, the doctor docks and fixes the connecting hose 18 through the extension hole 19 and the drainage hose 14, so that the liquid in the reservoir can be drained into the drainage bag 15. At the same time, the angle of the adjustment block 6 can also be finely adjusted through the provided adjustment mechanism 4, so that the puncture position of the puncture needle 9 can be further adjusted to align with the best puncture position of the Ommaya reservoir, improving the practicability and diversity of the drainage device.

[0029] As Figure 1 shown, a scale line 3 is arranged on the front surface of the drainage bag 15;

[0030] Through the provided scale line 3, medical staff can clearly see the volume change of the liquid in the drainage bag 15, preventing adverse effects on the patient caused by excessive drainage. At the same time, the drainage bag 15 can be replaced with other negative pressure suction devices, and drugs or other agents can also be injected into the patient's brain through these devices, thus improving the flexibility of the device in use.

[0031] As Figure 1As shown, a first fixing strap 10 is fixedly connected to the left side of the lower surface of the fixing shell 1, and a second fixing strap 11 is fixedly connected to the right side of the lower surface of the fixing shell 1. A male magic tape 12 is fixedly connected to the inner side of the first fixing strap 10, and a female magic tape 13 is fixedly connected to the outer side of the second fixing strap 11;

[0032] When the patient wears the drainage device on the sac part of the patient through the fixing shell 1, the medical staff picks up the first fixing strap 10, gently wraps it around the corresponding side of the patient's head, and then turns the male magic tape 12 on the inner side of the first fixing strap 10 outward. Then, the medical staff picks up the second fixing strap 11, aligns the female magic tape 13 on the outer side of the second fixing strap 11 with the male magic tape 12, and then slowly attaches the female magic tape 13 to the male magic tape 12 while appropriately adjusting the position of the first fixing strap 10 and the overall tightness. The tightness should be such that the fixing device can be firmly fixed without causing excessive pressure on the scalp and other parts, so as to stably fix the entire fixing shell 1 on the patient's head and prevent the device from shifting or shaking during subsequent puncture, drainage and other operations, providing a stable basis for precise operation.

[0033] As Figure 2 , Figure 4 and Figure 5 shown, the adjusting mechanism 4 includes a rotating handle 401, which is located in front of the adjusting box 2. The center of the rear surface of the rotating handle 401 is fixedly connected with a sleeve rod 402. A sliding rod 403 is slidably connected inside the sleeve rod 402. Limiting sliding grooves 404 are opened on the inner front surface and the inner rear surface of the adjusting groove 5. An angle control groove 405 is opened on the front surface of the adjusting block 6. The rear end of the sliding rod 403 is rotatably connected to the inner rear surface of the angle control groove 405 through a rotating shaft. A control gear 406 is fixedly connected to the outer side wall of the sleeve rod 402. A rack plate 407 is fixedly connected to the inner lower surface of the limiting sliding groove 404 in front of the adjusting groove 5. A first spring 408 is fixedly connected between the front end of the sliding rod 403 and the inside of the sleeve rod 402. A through adjusting transverse groove 426 is opened on the inner front surface of the limiting sliding groove 404 in front of the adjusting groove 5;

[0034] When the drainage device is fixed, the medical staff can control the position of the adjustment block 6 according to the patient's pre-buried ommaya sac point, so as to facilitate the insertion of the puncture needle 9 into the ommaya sac. The medical staff can control the sliding of the sleeve rod 402 by pulling the rotating handle 401 outward. When the sleeve rod 402 slides, it can drive the control gear 406 to move to the top of the rack plate 407 and engage with it. Then, the control gear 406 is controlled to rotate by rotating the rotating handle 401. The adjustment block 6 can move laterally inside the adjustment groove 5 through the adjustment transverse groove 426, so as to facilitate the fine-tuning and accurate movement of the insertion hole 7 to the top of the ommaya sac. When the rotating handle 401 is released, the sleeve rod 402 can be moved to the initial position through the rebound of the spring 408, and the control gear 406 can be moved to the inside of the angle control groove 405 and cancel the engagement with the rack plate 407. The medical staff can fine-tune the puncture needle 9 to the ideal position according to actual needs, thereby improving the flexibility of the device.

[0035] like Figure 2 , Figure 3 and Figure 5 As shown, a locking plate 410 is provided on the outer wall of the sleeve rod 402 and in front of the regulating box 2, an extrusion cavity 411 is integrally formed on the upper part of the locking plate 410, a clamping block 412 is slidably connected to the inside of the extrusion cavity 411, a resisting rod 413 is fixedly connected to the center of the front surface of the clamping block 412, the front end of the resisting rod 413 contacts the rear surface of the rotating handle 401, a plurality of springs 414 are fixedly connected to the front surface of the clamping block 412 and the inner front surface of the extrusion cavity 411, a plurality of plug holes 415 are provided on the front surface of the regulating box 2, and the rear end of the clamping block 412 extends to the inside of the plug hole 415 located at the center of the front surface of the regulating box 2;

[0036] When adjusting the lateral position of the adjusting block 6, the rotating handle 401 cancels the contact with the resistance rod 413, so that the locking block 412 can be pulled out of the interior of the plug-in hole 415 by the elastic force of multiple springs 414. At this time, the locking fixation of the locking plate 410 can be cancelled, which is convenient for medical staff to move the adjusting block 6 by rotating the rotating handle 401. When the adjusting block 6 moves to a suitable position, the rotating handle 401 can be automatically reset by the elastic force of the set spring 408, so that the resistance rod 413 is squeezed by the rotating handle 401 to make the locking block 412 plugged into the interior of the plug-in hole 415 in the corresponding direction, so that the locking plate 410 can be fixed, and the adjusting block 6 can be effectively fixed in the adjusting groove 5, ensuring that the device maintains a certain stability during the subsequent puncture and drainage process, thereby improving the drainage efficiency.

[0037] like Figure 2As shown in the figure, a guide block 409 is slidably connected inside the rear limiting chute 404 of the adjusting chute 5. The front surface of the guide block 409 is rotatably connected to the rear surface of the adjusting block 6 through a rotating shaft;

[0038] The sliding fit between the provided guide block 409 and the rear limiting chute 404 can limit the lateral movement trajectory of the adjusting block 6, enabling the adjusting block 6 to move smoothly along a predetermined straight line direction, preventing deviation from the predetermined path to the left or right, further ensuring the accuracy of the adjustment operation, and allowing the puncture needle 9 to accurately move to the ideal lateral position.

[0039] As Figure 5 shown in the figure, guide grooves 416 are provided above and below the front of the adjusting box 2 and above and below a plurality of first plug holes 415. Two guide bars 417 are fixedly connected to the rear surface of the locking plate 410, and the outer side walls of the two guide bars 417 are respectively slidably connected inside the two guide grooves 416;

[0040] Through the sliding fit between the two guide bars 417 and the two guide grooves 416, it can ensure that the movement trajectory of the locking plate 410 during the locking and unlocking operations and when moving or rotating following the rotating handle 401 is more accurate and stable, ensuring that the drainage device can accurately and efficiently perform puncture drainage work subsequently.

[0041] As Figures 3-5 shown in the figure, a plurality of second plug holes 418 are provided on the outer side wall of the locking plate 410, and the plurality of second plug holes 418 are distributed in a circular shape. An upper pressing cavity 419 is integrally formed inside the rotating handle 401. An arc-shaped piston plate 420 is slidably connected inside the pressing cavity 419. A pressing block 421 is fixedly connected to the upper surface of the arc-shaped piston plate 420. The top end of the pressing block 421 extends above the rotating handle 401. A plurality of third springs 422 are fixedly connected between the lower surface of the arc-shaped piston plate 420 and the upper surface inside the pressing cavity 419. An air exchange cavity 423 is provided inside the rotating handle 401 and below the pressing cavity 419. A piston column 424 is slidably connected inside the air exchange cavity 423. The rear end of the piston column 424 extends into the second plug hole 418 located above the upper locking plate 410. The inside of the pressing cavity 419 is communicated with the inside of the air exchange cavity 423. An internal gear 425 is fixedly connected to the inner side wall of the angle control groove 405, and the inner side wall of the internal gear 425 is meshed with the outer side wall of the control gear 406

[0042] After the lateral angle of the adjustment block 6 is adjusted, medical staff can hold the rotating handle 401 provided by hand and press the pressing block 421 downward, so that the arc-shaped piston plate 420 can slide downward inside the pressing cavity 419, and the air flow inside the pressing cavity 419 can be conveyed to the lower ventilation cavity 423 through the sliding of the arc-shaped piston plate 420. Thus, the piston column 424 inside the ventilation cavity 423 slides backward under the action of the air flow, and the piston column 424 is withdrawn from the inside of the second insertion hole 418, so as to cancel the rotation restriction of the rotating handle 401. At this time, the rotating handle 401 provided can be rotated to control the rotation of the sleeve rod 402, and the control gear 406 can be rotated through the sleeve rod 402. The rotation of the control gear 406 can make the internal gear 425 rotate, and thus the angle of the adjustment block 6 can be changed through the internal gear 425. When the angle of the adjustment block 6 is adjusted to the required angle, after releasing the set pressing block 421, the arc-shaped piston plate 420 can be reset by the rebound of multiple third springs 422, and at the same time, the piston column 424 moves to insert into the second insertion hole 418 corresponding to the angle, so as to lock the rotating handle 401. In this way, the precise adjustment of the angle of the puncture needle 9 can be realized, and the flexibility of the device is further improved.

[0043] The above embodiments only represent several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. Ommaya capsule scalp external drainage device, comprising a fixed shell (1), characterized in that: The upper surface of the fixed shell (1) is fixedly connected to an adjustment box (2), an adjustment mechanism (4) is arranged in front of the adjustment box (2), a through-type adjustment slot (5) is provided on the upper surface of the adjustment box (2), an adjustment block (6) is arranged inside the adjustment slot (5), a through-type insertion hole (7) is provided on the upper surface of the adjustment block (6), a fixing rod (8) is arranged inside the insertion hole (7), the bottom end of the fixing rod (8) extends to the bottom of the fixed shell (1) and is fixedly connected to a puncture needle (9); A fixing belt 1 (10) is fixedly connected to the left side of the lower surface of the fixing shell (1), a fixing belt 2 (11) is fixedly connected to the right side of the lower surface of the fixing shell (1), a sub-velcro (12) is fixedly connected to the inner side of the fixing belt 1 (10), and a mother-velcro (13) is fixedly connected to the outer side of the fixing belt 2 (11).

2. The ommaya capsule scalp external drainage device according to claim 1, characterized in that: The outer wall of the fixed shell (1) is provided with a through-type extension hole (19), and a connecting hose (18) is integrally formed on the outer side of the puncture needle (9). The end of the connecting hose (18) away from the puncture needle (9) passes through the extension hole (19) and is detachably connected to a drainage hose (14). The end of the drainage hose (14) away from the extension hole (19) is provided with a drainage bag (15).

3. The ommaya capsule scalp external drainage device according to claim 1, characterized in that: Adjustment bolts (16) are provided at the front and rear of the adjustment block (6), and the opposite ends of the two adjustment bolts (16) extend into the interior of the insertion hole (7) and are rotatably connected to the limit clamping plate (17) via a rotating shaft.

4. The ommaya capsule scalp external drainage device according to claim 1, characterized in that: The adjusting mechanism (4) comprises a rotating handle (401), the rotating handle (401) is located in front of the adjusting box (2), a sleeve rod (402) is fixedly connected to the center of the rear surface of the rotating handle (401), a sliding rod (403) is slidably connected inside the sleeve rod (402), a limiting sliding groove (404) is provided on the inner front surface and the inner rear surface of the adjusting groove (5), an angle control groove (405) is provided on the front surface of the adjusting block (6), and the rear end of the sliding rod (403) is rotatably connected to the angle control groove (405). The inner rear surface of the control groove (405) is rotatably connected via a rotating shaft, the outer side wall of the sleeve rod (402) is fixedly connected with a control gear (406), the inner lower surface of the limiting slide groove (404) located in front of the adjustment groove (5) is fixedly connected with a rack plate (407), a spring 1 (408) is fixedly connected between the front end of the sliding rod (403) and the inside of the sleeve rod (402), and a through-type adjustment transverse groove (426) is provided on the inner front surface of the limiting slide groove (404) located in front of the adjustment groove (5).

5. The ommaya capsule scalp external drainage device according to claim 4, characterized in that: A guide block (409) is slidably connected inside the limiting sliding groove (404) located behind the adjusting groove (5), and the front surface of the guide block (409) is rotatably connected to the rear surface of the adjusting block (6) via a rotating shaft.

6. The ommaya capsule scalp external drainage device according to claim 4, characterized in that: A locking plate (410) is provided on the outer wall of the sleeve rod (402) and located in front of the regulating box (2); an extrusion cavity (411) is integrally formed on the upper part of the interior of the locking plate (410); a snap-fit ​​block (412) is slidably connected to the interior of the extrusion cavity (411); a resisting rod (413) is fixedly connected at the center of the front surface of the snap-fit ​​block (412); the front end of the resisting rod (413) contacts the rear surface of the rotating handle (401); a plurality of springs (414) are fixedly connected between the front surface of the snap-fit ​​block (412) and the inner front surface of the extrusion cavity (411); a plurality of plug-in holes (415) are provided on the front surface of the regulating box (2); the rear end of the snap-fit ​​block (412) extends to the interior of the plug-in hole (415) located at the center of the front surface of the regulating box (2).

7. The ommaya capsule scalp external drainage device according to claim 1, characterized in that: The front surface of the drainage bag (15) is provided with scale lines (3).

8. The ommaya capsule scalp external drainage device according to claim 6, characterized in that: Guide grooves (416) are provided in front of the adjustment box (2) and above and below the plurality of plug holes (415); two guide strips (417) are fixedly connected to the rear surface of the locking plate (410); and the outer side walls of the two guide strips (417) are respectively slidably connected to the inside of the two guide grooves (416).

9. The ommaya capsule scalp external drainage device according to claim 6, characterized in that: The outer wall of the locking plate (410) is provided with a plurality of plug holes (418), and the plurality of plug holes (418) are distributed in a circular shape. A pressing cavity (419) is integrally formed on the upper part of the interior of the rotating handle (401). The interior of the pressing cavity (419) is slidably connected with an arc-shaped piston plate (420). The upper surface of the arc-shaped piston plate (420) is fixedly connected with a pressing block (421). The top end of the pressing block (421) extends to the upper part of the rotating handle (401). The lower surface of the arc-shaped piston plate (420) and the upper surface of the interior of the pressing cavity (419) are fixedly connected with a plurality of springs (421). 2), a ventilation chamber (423) is provided inside the rotating handle (401) and below the pressing chamber (419), and a piston column (424) is slidably connected inside the ventilation chamber (423), and the rear end of the piston column (424) extends to the inside of the second plug-in hole (418) located above the upper locking plate (410), and the inside of the pressing chamber (419) is connected to the inside of the ventilation chamber (423), and the inner side wall of the angle control groove (405) is fixedly connected to an internal gear (425), and the inner side wall of the internal gear (425) is meshingly connected to the outer side wall of the control gear (406).

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