CN113995897A - Neurosurgery posterior skull distraction drainage device - Google Patents

Abstract

The invention discloses a neurosurgical posterior skull distraction drainage device which comprises a pedestal, a liquid storage tank, a left posterior skull distraction mechanism, a right posterior skull distraction mechanism, a headrest, a drainage mechanism and a head stabilizing mechanism, wherein the headrest is arranged in front of the upper end surface of an operating table, two groups of stroke limiting cylinders are arranged between the pedestal and the headrest, the left posterior skull distraction mechanism is arranged on the left side of the front part of the upper end surface of the operating table, and the right posterior skull distraction mechanism is arranged on the right side of the front part of the upper end surface of the operating table; the middle of the upper end face of the headrest is provided with a concave surface, a head stabilizing mechanism is installed in the concave surface, a base plate is arranged on the lower portion of the headrest, and a drainage mechanism is installed at the front end of the upper end face of the operating table. The invention has reasonable structure arrangement, is convenient for spreading tissues such as skin muscles and the like on two sides of a craniotomy incision of a posterior skull of a patient to two sides, is convenient for adjusting the position of the spreading mechanism, has no influence on the surgical spread space due to the arrangement of the drainage mechanism, is more reliable to use and install, and is beneficial to improving the operation success rate of the surgery.

Description

Neurosurgery posterior skull distraction drainage device

Technical Field

The invention relates to the technical field related to medical instruments, in particular to a neurosurgery posterior skull distraction drainage device.

Background

At present, clinically, after craniocerebral operation is performed on a patient, the head of the patient needs to be prevented from moving as far as possible, and because intracranial blood vessels are abundant, multi-layer separation is needed, and much blood seepage exists, drainage needs to be performed after the operation. In the reference file "CN 201711097116.1 posterior skull distraction drainage device for neurosurgery", in this specification, it is mentioned that "the base is a" u "shaped plate, the upper surfaces of the two ends of the base are relatively fixed with fixing plates, the shaft holes of the fixing plates are provided with rotating shafts, the middle parts of the two rotating shafts are fixedly connected through arc-shaped arm plates, the middle parts of the arm plates pass through the arc-shaped through groove in the middle part of the sliding seat, the circular hole in the middle part of the sliding seat is provided with a movable sleeve, the lower end side surface of the movable sleeve is relatively fixed with a second electric telescopic rod, the inner side end telescopic arm of the second electric telescopic rod is fixed with a pulling plate, the upper end of the movable sleeve is fixed with a negative pressure cylinder, although the wall plates of the reference file are arranged on the two sides of the posterior skull, the tissues such as skin and muscle on the two sides of the incision are not conveniently distracted, and the negative pressure cylinder is located above the affected part, which limits the operation space for the doctor to do the craniotomy, the expansion of the operation is affected, and the use is not safe and convenient.

Disclosure of Invention

The invention aims to provide a posterior skull distraction drainage device for neurosurgery, which aims to solve the problems that wall plates in a comparison document provided in the background technology are arranged on two sides of a posterior skull, but tissues such as skin and muscles on two sides of an incision are not convenient to distract from the two sides, and a negative pressure cylinder is positioned above an affected part, so that the operation space of a doctor in the craniotomy is limited, the expansion of the operation is influenced, and the use is not safe and convenient.

In order to achieve the purpose, the invention provides the following technical scheme: a neurosurgery posterior skull distraction drainage device comprises a pedestal, a liquid storage tank, a left posterior skull distraction mechanism, a right posterior skull distraction mechanism, a headrest, a drainage mechanism and a head stabilizing mechanism, wherein two groups of fixed blocks are arranged at the front end and the rear end of the upper end face of the pedestal, the upper ends of the fixed blocks are supported on the lower end face of an operating table, a bottom plate is arranged at the lower part of the pedestal, two groups of supporting legs are arranged at the left part and the right part of the lower end face of the bottom plate, and the liquid storage tank is arranged between the two groups of supporting legs at the front part;

a headrest is arranged in front of the upper end face of the operating table, two groups of stroke limiting cylinders are arranged between the pedestal and the headrest, a left rear skull opening mechanism is arranged on the left side of the front of the upper end face of the operating table, and a right rear skull opening mechanism is arranged on the right side of the front of the upper end face of the operating table; the middle of the upper end face of the headrest is provided with a concave surface, a head stabilizing mechanism is installed in the concave surface, a base plate is arranged on the lower portion of the headrest, and a drainage mechanism is installed at the front end of the upper end face of the operating table.

As a further technical scheme, the upper end of liquid reserve tank is provided with the case mouth, and the wrench cover has been turned round on the case mouth to the leading flank upper portion of liquid reserve tank is provided with first inlet, is connected with first transfer line on the first inlet, and the upper end of first transfer line is connected on drainage mechanism, and the leading flank lower part of liquid reserve tank is provided with first liquid outlet.

As a further technical scheme, left recess has been seted up to the front end left part of operating table, and installs left ball screw in the left recess to left ball screw's front end rotates to be connected on the inside wall of left recess, and installs left carousel on left ball screw's the rear end, and right recess has been seted up to the front end right part of operating table simultaneously, installs right ball screw in the right recess, and right ball screw's front end rotates to be connected on the inside wall of right recess, and installs right carousel on right ball screw's the rear end.

According to a further technical scheme, the left posterior skull opening mechanism is provided with an upper ball screw, the lower end of the upper ball screw is rotatably connected in a base, a first movable sleeve is arranged at the bottom of the base and movably connected to the left ball screw, a second movable sleeve is movably connected to the upper ball screw, a connecting plate is arranged on the right side of the second movable sleeve, a mounting plate is arranged at the front end of the connecting plate, a pin seat is arranged on the upper portion of the front side face of the mounting plate, a shaft pin is arranged on the pin seat, and an electronic clamping holder of a clamping mechanism is hinged to the middle portion of the shaft pin.

As a further technical solution, an upper clamp plate is arranged at the upper part of the front end of the clamping mechanism electronic clamp holder, a lower clamp plate is arranged at the lower part of the front end of the clamping mechanism electronic clamp holder, and the upper clamp plate and the lower clamp plate can move up and down at the front end of the clamping mechanism electronic clamp holder.

As a further technical scheme, the left posterior cranium distraction mechanism and the right posterior cranium distraction mechanism are bilaterally symmetrical about the center line of the headrest, the structure arrangement of the right posterior cranium distraction mechanism is consistent with that of the left posterior cranium distraction mechanism, and a movable sleeve at the bottom of the right posterior cranium distraction mechanism is movably connected on the right groove.

As a further technical scheme, the lower part of the drainage mechanism is provided with a mounting rack, the mounting rack is fixed at the front end of the upper end face of the operating table, the drainage pump is installed on the upper end face of the drainage mechanism, the second infusion tube connected to the upper part of the drainage mechanism passes through the drainage pump, the middle part of the tube body of the second infusion tube is hung on the tube frame, the front part of the second infusion tube is connected with a telescopic tube, and the lower end of the telescopic tube is provided with a drainage nozzle.

According to a further technical scheme, a left side frame is arranged at the left part of the head stabilizing mechanism, a notch is formed in the middle of the left side frame, mounting sleeves are arranged on the front portion and the rear portion of the left side frame, fastening cranium nails are mounted on the mounting sleeves and can stretch and retract back and forth in the mounting sleeves, a right side frame is arranged at the right part of the head stabilizing mechanism, and the left side frame and the right side frame are arranged in a bilateral symmetry mode about the center line of the head stabilizing mechanism.

As a further technical scheme, the headrest is made of medical silica gel, the base plate at the bottom of the headrest is made of ABS, and the headrest ascends and descends in the vertical direction.

Compared with the prior art, the invention has the beneficial effects that:

1. the liquid storage tank is arranged for storing drainage liquid in a centralized mode, the liquid storage tank is arranged between the two groups of supporting legs at the lower front portion of the pedestal, the liquid storage tank is convenient to drain nearby and store, meanwhile, the liquid storage tank is convenient to push and take out, the liquid storage tank is convenient to install, and meanwhile, a tank opening and a twisting cover are arranged at the upper end of the liquid storage tank, so that the liquid storage tank is convenient to clean and use after being opened.

2. The operating table is an operating table structure attached to the lying face of a patient, meanwhile, a left groove and a right groove are formed in the left side and the right side of the front portion of the operating table respectively, lead screws are mounted in the left groove and the right groove, and the rear ends of the lead screws are provided with rotating discs, so that medical workers can conveniently rotate and move manually, the lead screws in the medical workers can rotate, and a movable sleeve on the lead screws can be driven to move.

3. The upper ball screw arranged on the left back skull opening mechanism can drive the second movable sleeve to move up and down while rotating, so as to drive the connecting plate and the mounting plate to move synchronously, and properly adjust the displacement of the electronic clamp holder of the upper clamping mechanism on the front side surface of the mounting plate.

4. According to the medical electronic clamp holder adopted by the electronic clamp holder of the clamping mechanism, the upper clamp plate and the lower clamp plate which can move are arranged at the front end of the electronic clamp holder of the clamping mechanism, the upper clamp plate and the lower clamp plate are arranged in an up-down opposite mode, and the clamping surfaces of the upper clamp plate and the lower clamp plate are both provided with medical silica gel materials with the thickness of 1-2mm, so that the medical electronic clamp holder is convenient to clamp the upper clamp plate and the lower clamp plate oppositely, and meanwhile, skin muscles and other tissues on two sides of a posterior skull incision of a patient are prevented from being damaged.

5. The left posterior cranium distraction mechanism and the right posterior cranium distraction mechanism are respectively positioned at the left side and the right side of the headrest, the structures of the left posterior cranium distraction mechanism and the right posterior cranium distraction mechanism are consistent, and the electronic clamping devices of the clamping mechanisms are respectively arranged at the front ends of the upper parts of the left posterior cranium distraction mechanism and the right posterior cranium distraction mechanism, so that the skin and flesh at the affected part of the operation can be conveniently distracted from the left side and the right side of the posterior cranium of a patient, and the middle gap between the left posterior cranium distraction mechanism and the right posterior cranium distraction mechanism is always kept, thereby being convenient for a doctor to perform the posterior cranium distraction operation, being beneficial to larger surgical deployment space and being more convenient for the operation.

6. The drainage mechanism is mainly used for conducting drainage work on an affected part by using the drainage nozzle, the telescopic pipe connected to the drainage nozzle is a stainless steel telescopic pipeline, so that medical workers can conveniently stretch and drain, the drainage mechanism is flexible and convenient to use, and meanwhile drainage liquid in the drainage mechanism can be conveyed into the liquid storage tank, so that the drainage mechanism can continuously drain after being emptied, and the service life is longer.

7. The head stabilizing mechanism is arranged on a concave surface on a headrest, a main user stabilizes the head of a patient, a left side frame and a right side frame are respectively arranged at the left part and the right part of the head stabilizing mechanism, and mounting sleeves and fastening cranium nails are arranged on the left side frame and the right side frame, so that the head of the patient can be conveniently stabilized from two sides of the head of the patient.

8. The headrest is arranged for placing the head of a patient, the concave surface is arranged in the middle of the upper end face of the headrest, the head of the patient can be exactly rested on the concave surface, and meanwhile, the headrest is made of medical silica gel, so that the head of the patient can be placed more comfortably for a long time, and the head of the patient can be protected.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic view of the arrangement of the liquid storage tank and the drainage mechanism of the structure of the invention;

FIG. 3 is an elevational schematic view of a left posterior distraction mechanism of the structure of the invention;

FIG. 4 is a top view of a left posterior distraction mechanism of the structure of the invention;

FIG. 5 is a schematic front view of a head stabilizing mechanism of the present invention;

FIG. 6 is a top view of the head stabilizing mechanism of the present invention;

FIG. 7 is a schematic view of the structural arrangement of an operating table constructed in accordance with the present invention;

FIG. 8 is a schematic view of the head rest, the drainage mechanism and the head stabilizing mechanism of the present invention;

FIG. 9 is a schematic view of the structure of the suction nozzle at the lower end of the drainage nozzle.

In the figure: 1. a pedestal; 10. a fixed block; 11. a base plate; 12. supporting legs; 13. a stroke limit cylinder; 2. a liquid storage tank; 20. a first liquid outlet; 21. a first liquid inlet; 22. a box opening; 23. twisting a cover; 24. a first infusion tube; 3. an operating table; 30. a left groove; 31. a left ball screw; 32. a left turn plate; 33. a right groove; 34. a right ball screw; 35. a right rotary table; 4. a left posterior cranium distraction mechanism; 40. a first movable sleeve; 41. a base; 42. an upper ball screw; 43. a second movable sleeve; 44. a connecting plate; 45. mounting a plate; 46. a pin boss; 47. a shaft pin; 5. a right posterior cranium distraction mechanism; 6. a headrest; 60. a concave surface; 61. a base plate; 7. a drainage mechanism; 70. a mounting frame; 71. a drainage pump; 72. a second infusion tube; 73. a pipe frame; 74. a telescopic pipe; 75. a drainage nozzle; 8. a head stabilizing mechanism; 80. a left side frame; 81. installing a sleeve; 82. fastening a cranial nail; 83. a right side frame; 84. a recess; 9. a clamping mechanism; 9. an electronic holder; 90. an upper splint; 91. and (5) a lower splint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first embodiment, referring to fig. 1 to 9, the present invention provides a technical solution: a neurosurgery posterior skull distraction drainage device comprises a pedestal 1, a liquid storage tank 2, a left posterior skull distraction mechanism 4, a right posterior skull distraction mechanism 5, a headrest 6, a drainage mechanism 7 and a head stabilizing mechanism 8, wherein two groups of fixed blocks 10 are arranged at the front end and the rear end of the upper end face of the pedestal 1, the upper ends of the fixed blocks 10 are supported on the lower end face of an operating table 3, a bottom plate 11 is arranged at the lower part of the pedestal 1, two groups of supporting legs 12 are arranged at the left part and the right part of the lower end face of the bottom plate 11, and the liquid storage tank 2 is arranged between the two groups of supporting legs 12 at the front part; a headrest 6 is arranged in front of the upper end face of the operating table 3, two groups of stroke limiting cylinders 13 are arranged between the pedestal 1 and the headrest 6, a left rear skull opening mechanism 4 is arranged on the left side of the front of the upper end face of the operating table 3, and a right rear skull opening mechanism 5 is arranged on the right side of the front of the upper end face of the operating table 3; the middle part of the upper end face of the headrest 6 is provided with a concave surface 60, a head stabilizing mechanism 8 is arranged in the concave surface 60, a base plate 61 is arranged at the lower part of the headrest 6, and the front end of the upper end face of the operating table 3 is provided with a drainage mechanism 7.

In this embodiment, a first tank opening 22 is formed in the upper end of the liquid storage tank 2, a twist cover 23 is twisted on the first tank opening 22, a first liquid inlet 21 is formed in the upper portion of the front side surface of the liquid storage tank 2, a first liquid conveying pipe 24 is connected to the first liquid inlet 21, the upper end of the first liquid conveying pipe 24 is connected to the drainage mechanism 7, and a first liquid outlet 20 is formed in the lower portion of the front side surface of the liquid storage tank 2.

In the invention, the liquid storage tank 2 is arranged for intensively storing drainage liquid, and the liquid storage tank 2 is arranged between the two groups of supporting legs 12 at the lower front part of the pedestal 1, so that the liquid storage tank is convenient to drain nearby and store nearby, and is convenient to push and take out, and the liquid storage tank is convenient to install, and meanwhile, the upper end of the liquid storage tank 2 is provided with a tank opening 22 and a twisting cover 23, so that the liquid storage tank is convenient to clean and use after being opened.

In this embodiment, left recess 30 has been seted up to the front end left part of operating table 3, and install left ball screw 31 in the left recess 30, and the front end of left ball screw 31 rotates and connects on the inside wall of left recess 30, and install left carousel 32 on the rear end of left ball screw 31, right recess 33 has been seted up to the front end right part of operating table 3 simultaneously, install right ball screw 34 in the right recess 33, the front end of right ball screw 34 rotates and connects on the inside wall of right recess 33, and install right carousel 35 on the rear end of right ball screw 34.

According to the third specific embodiment, the first specific embodiment is further limited, the operating table 3 is used as an operating table top structure for a patient to lie on the stomach, meanwhile, the left groove 30 and the right groove 33 are respectively formed in the left side and the right side of the front portion of the operating table 3, the screw rods are respectively arranged in the left groove 30 and the right groove 33, and the rotary tables are arranged at the rear ends of the screw rods, so that medical workers can manually rotate and move conveniently, the screw rods in the screw rods are rotated, and a movable sleeve on the screw rods is driven to move.

In this embodiment, the left posterior skull opening mechanism 4 is provided with an upper ball screw 42, the lower end of the upper ball screw 42 is rotatably connected in a base 41, the bottom of the base 41 is provided with a first movable sleeve 40, the first movable sleeve 40 is movably connected on the left ball screw 31, the upper ball screw 42 is movably connected with a second movable sleeve 43, the right side of the second movable sleeve 43 is provided with a connecting plate 44, the front end of the connecting plate 44 is provided with a mounting plate 45, the upper part of the front side surface of the mounting plate 45 is provided with a pin seat 46, a pin 47 is arranged on the pin seat 46, and the middle part of the pin 47 is hinged with the clamping mechanism electronic holder 9.

Fourth embodiment, this embodiment is a further limitation to the first embodiment, in the present invention, the upper ball screw 42 disposed on the left posterior cranium distracting mechanism 4 can drive the second movable sleeve 43 to move up and down while rotating, so as to drive the connecting plate 44 and the mounting plate 45 to move synchronously, so as to properly adjust the displacement of the electronic holder 9 of the upper clamping mechanism on the front side of the mounting plate 45.

In the present embodiment, the upper part of the front end of the clamping mechanism electronic holder 9 is provided with an upper plate 90, and the lower part of the front end of the clamping mechanism electronic holder 9 is provided with a lower plate 91, and both the upper plate 90 and the lower plate 91 can move up and down at the front end of the clamping mechanism electronic holder 9.

In the medical electronic clamp holder adopted by the electronic clamp holder 9 of the clamping mechanism of the invention, the front end of the electronic clamp holder 9 of the clamping mechanism is provided with the upper clamp plate 90 and the lower clamp plate 91 which can move movably, the upper clamp plate 90 and the lower clamp plate 91 are arranged oppositely up and down, and the clamping surfaces of the upper clamp plate 90 and the lower clamp plate 91 are both provided with medical silica gel materials with the thickness of 1-2mm, so that the rear skull flesh of a patient can be prevented from being damaged while the upper clamp plate 90 and the lower clamp plate 91 are clamped oppositely.

In this embodiment, the left posterior cranium distraction mechanism 4 and the right posterior cranium distraction mechanism 5 are bilaterally symmetrical about the center line of the headrest 6, the structures of the right posterior cranium distraction mechanism 5 and the left posterior cranium distraction mechanism 4 are consistent, and the movable sleeve at the bottom of the right posterior cranium distraction mechanism 5 is movably connected on the right groove 33.

In the invention, the left posterior cranium distraction mechanism 4 and the right posterior cranium distraction mechanism 5 are respectively positioned at the left side and the right side of the headrest 6, the structures of the left posterior cranium distraction mechanism 4 and the right posterior cranium distraction mechanism 5 are consistent, and the front ends of the upper parts of the two groups are respectively provided with a holding mechanism electronic holder 9, so that the skin flesh at the affected part of the operation can be conveniently distracted from the left side and the right side of the posterior cranium of a patient, and the middle gap between the two parts is always kept, thereby facilitating the posterior craniotomy operation of a doctor, being beneficial to larger operation space and being more convenient for the operation.

In this embodiment, a mounting frame 70 is provided at a lower portion of the drainage mechanism 7, the mounting frame 70 is fixed at a front end of an upper end surface of the operating table 3, a drainage pump 71 is installed at the upper end surface of the drainage mechanism 7, a second infusion tube 72 connected to an upper portion of the drainage mechanism 7 passes through the drainage pump 71, a middle portion of a tube body of the second infusion tube 72 is hung on a tube frame 73, a telescopic tube 74 is connected to a front portion of the second infusion tube 72, and a drainage nozzle 75 is provided at a lower end of the telescopic tube 74.

Seventh embodiment, this embodiment is a further limitation to the first embodiment, in the present invention, the drainage mechanism 7 is mainly used to perform drainage work by aligning the drainage nozzle 75 with the affected part, and the telescopic tube 74 connected to the drainage nozzle 75 is a stainless steel telescopic tube, which facilitates the stretching and drainage of medical staff, and is flexible and convenient to use, and meanwhile, when the drainage liquid in the drainage mechanism 7 can be delivered to the liquid storage tank 2, so that the drainage mechanism 7 can continuously drain the drainage liquid after being emptied, and the service life is longer.

In this embodiment, the left portion of the head stabilizing mechanism 8 is provided with a left side frame 80, a notch 84 is formed in the middle of the left side frame 80, the front portion and the rear portion of the left side frame 80 are both provided with a mounting sleeve 81, a fastening cranial nail 82 is mounted on the mounting sleeve 81, the fastening cranial nail 82 can be moved back and forth in the mounting sleeve 81 in a telescopic manner, meanwhile, the right portion of the head stabilizing mechanism 8 is provided with a right side frame 83, and the left side frame 80 and the right side frame 83 are arranged in a left-right symmetrical manner with respect to the center line of the head stabilizing mechanism 8.

Eighth embodiment, the first embodiment is further limited to the first embodiment, in the present invention, the head stabilizing mechanism 8 is installed on the concave surface 60 of the headrest 6, and the main user stabilizes the head of the patient, and the left side frame 80 and the right side frame 83 are respectively provided at the left portion and the right portion of the head stabilizing mechanism 8, and the left side frame 80 and the right side frame 83 are both provided with the installation sleeve 81 and the fastening skull nail 82, so as to facilitate stabilizing from both sides of the head of the patient, and meanwhile, the middle portions of the left side frame 80 and the right side frame 83 are both provided with the notch 84, and the notch 84 is provided for facilitating the passage of the electronic clamp holder 9 of the holding mechanism on the installation plate 45, so as to facilitate the operation.

In this embodiment, the headrest 6 is made of medical silica gel, the backing plate 61 at the bottom of the headrest 6 is made of ABS, and the headrest 6 moves up and down in the vertical direction;

the first embodiment is further limited, the headrest 6 is used for placing the head of a patient, the concave surface 60 is arranged in the middle of the upper end face of the headrest 6, the head of the patient can be rested on the concave surface, and the headrest 6 is made of medical silica gel, so that the head of the patient can be placed more comfortably for a long time, and the head of the patient can be protected.

When the neurosurgical posterior skull distraction drainage device is used, a patient lies on the operating table 3 with the face facing downwards, the head is placed on the concave surface 60 of the headrest 6, the fastening cranial nails 82 on the left side frame 80 and the right side frame 83 of the head stabilizing mechanism 8 are clockwise rotated and move towards the head of the patient, the front ends of the fastening cranial nails 82 on the two sides are fixed on the two sides of the skull of the patient, the head is stabilized in the concave surface 60 and cannot shake, then the left rotating disc 32 and the right rotating disc 35 on the two sides of the front end of the operating table 3 are respectively rotated to move the left posterior skull distraction mechanism 4 and the right posterior skull distraction mechanism 5 on the X axis, then the screw rods on the left posterior skull distraction mechanism 4 and the right posterior skull distraction mechanism 5 are respectively rotated to drive the electronic clamp holder 9 of the holding mechanism to move up and down, and the positions of the electronic clamp holders 9 of the two rear side distraction mechanisms are adjusted, after the skull opening operation is conveniently carried out by a doctor, the outer skin and flesh on two sides of an affected part are pulled open towards two sides to be in an outward-opening state, so that the skull opening operation is carried out, meanwhile, the drainage nozzle 75 on the drainage mechanism 7 is utilized to aim at the affected part for drainage, drainage liquid firstly enters the drainage mechanism 7, and after the internal volume of the drainage mechanism 7 is fully stored, the drainage liquid can be automatically conveyed to the liquid storage tank 2 through the first liquid conveying pipe 24 to be stored in a concentrated mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a drainage device is strutted to neurosurgery back cranium, includes pedestal (1), liquid reserve tank (2), left back cranium struts mechanism (4), right back cranium struts mechanism (5), headrest (6), drainage mechanism (7) and head stabilizing mean (8), its characterized in that: two groups of fixed blocks (10) are arranged at the front end and the rear end of the upper end face of the pedestal (1), the upper ends of the fixed blocks (10) are supported on the lower end face of the operating table (3), a bottom plate (11) is arranged at the lower part of the pedestal (1), two groups of supporting legs (12) are arranged on the left and right parts of the lower end face of the bottom plate (11), and a liquid storage tank (2) is arranged between the two groups of supporting legs (12) at the front part;

a headrest (6) is arranged in front of the upper end face of the operating table (3), two groups of stroke limiting cylinders (13) are arranged between the pedestal (1) and the headrest (6), a left rear skull opening mechanism (4) is arranged on the left side of the front of the upper end face of the operating table (3), and a right rear skull opening mechanism (5) is arranged on the right side of the front of the upper end face of the operating table (3); the upper end face middle part of headrest (6) is provided with concave surface (60), and installs head stabilizing mean (8) in concave surface (60) to the lower part of headrest (6) is provided with backing plate (61), drainage mechanism (7) are installed to the upper end face front end of operating table (3).

2. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the upper end of liquid reserve tank (2) is provided with case mouth (22), and the twist has turned round lid (23) on case mouth (22) to the leading flank upper portion of liquid reserve tank (2) is provided with first inlet (21), is connected with first transfer line (24) on first inlet (21), and the upper end of first transfer line (24) is connected on drainage mechanism (7), and the leading flank lower part of liquid reserve tank (2) is provided with first liquid outlet (20).

3. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: left recess (30) have been seted up to the front end left part of operating table (3), and install left ball screw (31) in left recess (30), and the front end of left ball screw (31) rotates and connects on the inside wall of left recess (30), and install left carousel (32) on the back end of left ball screw (31), right recess (33) have been seted up to the front end right part of operating table (3) simultaneously, install right ball screw (34) in right recess (33), the front end of right ball screw (34) rotates and connects on the inside wall of right recess (33), and install right carousel (35) on the back end of right ball screw (34).

4. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the left back skull opening mechanism (4) is provided with an upper ball screw (42), the lower end of the upper ball screw (42) is rotatably connected in a base (41), a first movable sleeve (40) is arranged at the bottom of the base (41), the first movable sleeve (40) is movably connected on a left ball screw (31), a second movable sleeve (43) is movably connected on the upper ball screw (42), a connecting plate (44) is arranged on the right side of the second movable sleeve (43), a mounting plate (45) is arranged at the front end of the connecting plate (44), a pin seat (46) is arranged on the upper portion of the front side face of the mounting plate (45), a pin (47) is arranged on the pin seat (46), and an electronic clamping device (9) of the adding and holding mechanism is hinged to the middle portion of the pin (47).

5. The neurosurgical posterior cranial distraction drainage device of claim 4, wherein: an upper clamping plate (90) is arranged at the upper part of the front end of the clamping mechanism electronic clamp holder (9), a lower clamping plate (91) is arranged at the lower part of the front end of the clamping mechanism electronic clamp holder (9), and the upper clamping plate (90) and the lower clamping plate (91) can move up and down at the front end of the clamping mechanism electronic clamp holder (9).

6. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the left posterior cranium distraction mechanism (4) and the right posterior cranium distraction mechanism (5) are bilaterally symmetrical about the center line of the headrest (6), the structure arrangement of the right posterior cranium distraction mechanism (5) and the left posterior cranium distraction mechanism (4) is consistent, and a movable sleeve at the bottom of the right posterior cranium distraction mechanism (5) is movably connected onto the right groove (33).

7. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the lower part of drainage mechanism (7) is provided with mounting bracket (70), and mounting bracket (70) are fixed at the up end front end of operating table (3), and drainage pump (71) are installed to the up end of drainage mechanism (7), and second transfer line (72) that drainage mechanism (7) upper portion is connected pass through drainage pump (71), and hang in the middle part of the body of second transfer line (72) and put on pipe support (73), and the front portion of second transfer line (72) is connected with flexible pipe (74), and the lower extreme of flexible pipe (74) is provided with drainage mouth (75).

8. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the left part of head stabilizing mechanism (8) is provided with left side frame (80), notch (84) have been seted up in the middle part of left side frame (80), and both are provided with mounting sleeve (81) in the front and back two parts of left side frame (80), and install fastening cranial nail (82) on mounting sleeve (81), and fastening cranial nail (82) flexible activity around in mounting sleeve (81), the right part of head stabilizing mechanism (8) is provided with right side frame (83) simultaneously, and left side frame (80) and right side frame (83) are bilateral symmetry setting about the central line of head stabilizing mechanism (8).

9. A neurosurgical posterior cranial distraction drainage device according to claim 1, wherein: the headrest (6) is made of medical silica gel, the base plate (61) at the bottom of the headrest (6) is made of ABS, and the headrest (6) ascends and descends in the vertical direction.

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