Head and neck surgery operation cavity fixing tractor

Abstract

The invention discloses a head and neck surgery operation cavity fixing tractor, and relates to the technical field of medical braces. The two front-back moving assemblies are arranged on the lower side of the supporting frame. The two lifting air cylinders are fixedly arranged at the upper ends of the vertical ends in the supporting frame correspondingly. The two supporting frames are arranged on the upper sides of the lifting air cylinders correspondingly. The two movable frames are arranged on one side of the supporting frame. The movable frame is of an inverted-L-shaped structure. The two left-right moving assemblies are arranged between the moving frame and the supporting frame. The two connecting frames are arranged on the lower side of the movable frame. The two expanders are respectively arranged on the lower side of the connecting frame; by moving the expander, the incision is expanded, and the expander is positioned, so that the visual field of an operation cavity is wider, and medical staff can see conditions in the operation cavity more clearly.

Description

Technical Field

[0001] The invention relates to the technical field of medical braces, and in particular to a head and neck surgery cavity fixing traction device. Background Art

[0002] Head and neck surgery focuses on the treatment of various diseases of the head and neck, which often require surgical treatment; in the process of surgical treatment of patients' pharyngeal head and neck, it is often necessary to perform surgery. When performing head and neck surgery, the patient's head and neck often need to be completely exposed to the doctor's field of vision; in order to facilitate the doctor to operate and observe more carefully in the surgical cavity, the surgical incision needs to be stretched open. However, in the prior art, there is no device to achieve this purpose, and it is simply to limit the support of the head and neck, which is in urgent need of improvement. Summary of the invention

[0003] The purpose of the present invention is to provide a head and neck surgical cavity fixing traction device with a simple structure, reasonable design and easy use in view of the defects and shortcomings of the prior art. By moving the expander, the incision is expanded and the expander is positioned, so that the field of view of the surgical cavity is wider, thereby facilitating medical staff to see the situation inside the surgical cavity more clearly.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a support frame, wherein the support frames are two and both are arranged in an "L"-shaped structure, the two support frames are arranged on the left and right sides of the bed board relative to each other, and the vertical ends of the support frames are arranged in contact with the outside of the bed board, and the horizontal ends of the support frames are arranged in contact with the bottom of the bed board; it also comprises:

[0005] A forward and backward moving assembly, wherein the forward and backward moving assemblies are two and are respectively arranged on the lower side of the supporting frame;

[0006] Lifting cylinders, there are two lifting cylinders, which are respectively fixed at the upper ends of the vertical ends of the support frame;

[0007] Support frames, there are two support frames, which are respectively arranged on the upper side of the lifting cylinder;

[0008] Moving frame, there are two moving frames, which are respectively arranged on one side of the supporting frame; the moving frame is arranged in an inverted "L" shape;

[0009] Left and right moving components, there are two left and right moving components, which are respectively arranged between the moving frame and the supporting frame;

[0010] Connecting frames, there are two connecting frames, which are respectively arranged at the lower side of the moving frame;

[0011] Expanders, there are two expanders, which are respectively arranged on the lower side of the connecting frame;

[0012] Through the above technical solution design, the expander expands the incision, the front-rear moving component moves and adjusts the expander in the front-rear direction, and the left-right moving component moves and adjusts the expander in the left-right direction.

[0013] As a further improvement of the present invention, the forward and backward moving assembly comprises:

[0014] Support blocks, there are two support blocks, which are fixedly arranged at the bottom of the bed board and are respectively arranged at the front and rear sides of the support frame;

[0015] A connecting block, the connecting block is inserted into the front and rear supporting blocks, and the connecting block is arranged on the lower side of the supporting frame; the inner side wall of the connecting block is provided with teeth;

[0016] A connecting platform, the connecting platform is fixedly arranged on the upper side of the connecting block, and the connecting platform is arranged between the front and rear supporting blocks, and the connecting platform is fixedly arranged at the bottom of the horizontal end of the supporting frame;

[0017] A central axis, wherein the central axis is screwed to the bottom of the bed plate through a bearing, and is disposed on a side of the central axis close to the teeth;

[0018] The rotating member is sleeved and fixed on the central shaft, and the rotating member is provided with arc-shaped teeth on the side close to the connecting block, and the arc-shaped teeth are meshed with the teeth; the rotating member is provided with a groove inside the side away from the connecting block;

[0019] A turntable, wherein the turntable is arranged on the upper side of the rotating member, a rotating support is fixedly arranged at the bottom of the turntable, and the rotating support is slidably arranged in the strip groove;

[0020] A rotating motor, wherein the rotating motor is fixedly arranged at the bottom of the bed board, and the rotating motor is arranged on the upper side of the rotating disk, and the output shaft of the rotating motor is fixedly arranged on the rotating disk;

[0021] Through the above technical solution design, when the turntable rotates, it drives the rotating support to move in the groove, so that the rotating part rotates around the rotation center of the central axis, and the arc-shaped teeth engage and drive the teeth to move the connecting block to move the support frame in the front and rear directions.

[0022] As a further improvement of the present invention, both the front and rear sides of the connecting block are provided with limiting platforms, and the limiting platforms are provided on the outer side of the supporting block;

[0023] The above technical solution is designed to prevent the connection block from moving away from the support block.

[0024] As a further improvement of the present invention, the left-right moving assembly comprises:

[0025] The movable frame is fixedly arranged on a side wall of the movable frame close to the supporting frame, and the movable frame is slidably arranged in the supporting frame through a sliding pair; movable teeth are arranged on the inner walls of the front and rear sides of the movable frame;

[0026] A driving motor, wherein the driving motor is fixedly arranged on the upper side of the supporting frame, and the output shaft of the driving motor is arranged inside the supporting frame after passing through the top plate of the supporting frame, and a driving shaft is fixedly arranged thereon, and the driving shaft is arranged in the moving frame;

[0027] A driving gear, which is sleeved and fixed on the driving shaft and is arranged on the upper side of the moving frame;

[0028] A transmission gear, wherein the transmission gear is meshed and arranged on one side of the driving gear, and the transmission gear is arranged on the upper side of the moving frame, a transmission shaft is passed through and fixed inside the transmission gear, the transmission shaft is arranged in the moving frame, and the upper end of the transmission shaft is screwed and arranged in the inner top surface of the supporting frame through a bearing;

[0029] Moving gears, there are two moving gears, which are respectively sleeved and fixed on the driving shaft and the transmission shaft, and the moving gears are arranged on the lower side of the driving gear, and the moving gears are respectively meshed with adjacent moving teeth;

[0030] Through the above technical solution design, the driving gear rotates to mesh and drive the transmission gear, so that the transmission shaft and the driving shaft rotate at the same time, so that the moving gear rotates to drive the moving gear, so that the moving frame moves.

[0031] As a further improvement of the present invention, a moving groove is provided in the vertical end of the moving frame, a moving support block is slidably inserted in the moving groove, and a connecting frame is provided at the bottom of the moving support block; a lifting motor is provided on the horizontal end of the moving frame, and a screw is provided after the output shaft of the lifting motor passes through the horizontal end of the moving frame, a screw tube is provided on the screw tube through a threaded connection sleeve, and the bottom end of the screw tube is fixedly provided on the moving support block;

[0032] Through the above technical solution design, the thread drive drives the connecting frame.

[0033] As a further improvement of the present invention, the connecting frame is composed of a No. 1 straight rod, a No. 2 straight rod and an inclined rod, the No. 1 straight rod is fixedly arranged at the bottom of the movable support block, the bottom of the No. 1 straight rod is fixedly arranged with an inclined rod, and the inclined rod is inclined from top to bottom and from outside to inside, the No. 2 straight rod is fixedly arranged at the lower end of the inclined rod, and the expander is fixedly arranged at the bottom end of the No. 2 straight rod;

[0034] Through the above technical solution design, the visual field is increased.

[0035] As a further improvement of the present invention, a support platform is provided at the upper end of the lifting cylinder, and a rotating motor is provided inside the support platform, and the upper end of the output shaft of the rotating motor is fixedly provided at the bottom of the supporting frame;

[0036] Through the above technical solution design, the support frame is rotated to change the angle of the expander.

[0037] As a further improvement of the present invention, a rotating frame is movably mounted on the support table, and the rotating frame is fixedly arranged at the bottom of the support frame;

[0038] Through the above technical solution design, the rotating support frame is guided.

[0039] As a further improvement of the present invention, a neck support platform is provided on the upper rear end of the bed board, and a groove is provided on the upper rear end of the neck support platform;

[0040] Through the above technical design, the head and neck are supported.

[0041] The working principle of the present invention is as follows: the patient lies on the bed board, with the neck resting on the neck support platform and the head in the groove so that the neck is exposed to the maximum extent; according to the position of the incision, the rotating motor is started to rotate the turntable, driving the rotating support platform to move in the groove, so that the rotating part rotates around the rotation center of the central axis, and the arc-shaped teeth are meshed and driven to drive the tooth teeth to move the connecting block to move the support frame in the front and back directions until the expander moves to the upper side of the incision; the lifting cylinder is started to drive the expander to move downward close to the upper side of the incision; and by starting the driving motor, the gear is driven The wheel rotates to engage and drive the transmission gear, so that the transmission shaft and the driving shaft rotate at the same time, to rotate the moving gear to drive the moving tooth, so that the moving frame moves, and the expander moves to the top of the incision; start the lifting motor to rotate the screw rod, drive the screw tube, so that the moving support block moves in the moving groove, and drives the expander downward into the incision; finally, start the driving motor again to make it rotate in the opposite direction, drive the moving frame to move outward, and drive the expander to move outward to expand the incision, thereby achieving traction and fixation of the incision and increasing the field of view of the surgical cavity.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. Add two left and right expanders at the location of the neck incision, and drive the expanders to expand and open the incision to increase the visual field of the surgical cavity;

[0044] 2. By driving the rotating part to rotate around the rotation center of the central axis, the connecting block is driven by the teeth meshing driving cooperation to move the expander 9 forward and backward and adjust it to a suitable position;

[0045] 3. The driving gear and the transmission gear mesh and rotate synchronously and in opposite directions, so that the two moving gears rotate synchronously and in opposite directions to drive the moving frame and adjust the expander to move left and right;

[0046] 4. The setting of the connecting frame enables the expander to expand the incision while reducing obstacles, which is conducive to seeing the inside of the surgical cavity clearly. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a structural schematic diagram of the present invention.

[0048] Figure 2 yes Figure 1 Enlarged view of part A.

[0049] Figure 3 yes Figure 1 Schematic diagram of the northwest isometric structure.

[0050] Figure 4 yes Figure 1 The left side structural diagram of .

[0051] Figure 5 yes Figure 1 Schematic diagram of the front structure.

[0052] Figure 6 It is a structural schematic diagram of the forward and backward moving component in the present invention.

[0053] Figure 7 It is a structural schematic diagram of the rotating part in the present invention.

[0054] Figure 8 It is a structural schematic diagram of the left-right moving component in the present invention.

[0055] Fig. 9 It is a structural schematic diagram of the connecting frame in the present invention.

[0056] Fig.10 It is a structural schematic diagram of the support platform and the rotating frame in the present invention.

[0057] Description of reference numerals:

[0058] Support frame 1, bed board 2, front and rear moving component 3, support block 3-1, connecting block 3-2, teeth 3-3, connecting platform 3-4, central axis 3-5, rotating part 3-6, arc teeth 3-7, strip groove 3-8, turntable 3-9, rotating support platform 3-10, rotating motor 3-11, limit platform 3-12, lifting cylinder 4, support frame 5, moving frame 6, moving groove 6-1, left and right moving component 7, moving frame 7-1, moving teeth 7-2, driving motor 7-3, driving gear 7-4, transmission gear 7-5, moving gear 7-6, connecting frame 8, straight rod No. 1 8-1, straight rod No. 2 8-2, tilting rod 8-3, expander 9, moving support block 10, lifting motor 11, screw 12, screw tube 13, support platform 14, rotating motor 15, rotating frame 16, neck support platform 17, groove 17-1. DETAILED DESCRIPTION

[0059] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0060] Embodiment 1:

[0061] See also Figure 1-Figure 10 In this embodiment, it comprises a support frame 1, wherein there are two support frames 1, and both are arranged in an "L"-shaped structure, and the two support frames 1 are arranged on the left and right sides of the bed board 2, and the vertical end of the support frame 1 is arranged on the outside of the bed board 2, and the horizontal end of the support frame 1 is arranged on the bottom of the bed board 2; a neck support platform 17 is arranged on the upper end of the rear side of the bed board 2, and a groove 17-1 is arranged on the upper end of the rear side of the neck support platform 17;

[0062] Also includes:

[0063] A forward and backward moving assembly 3, wherein the forward and backward moving assembly 3 is two and is respectively arranged at the lower side of the supporting frame 1;

[0064] Lifting cylinders 4, there are two lifting cylinders 4, which are respectively fixedly arranged at the upper ends of the vertical ends of the support frame 1; the specific use model of the lifting cylinders 4 is directly purchased and installed from the market according to actual use requirements;

[0065] Support frames 5, there are two support frames 5, which are respectively arranged on the upper side of the lifting cylinder 4;

[0066] The movable frame 6 includes two movable frames 6, which are respectively arranged on one side of the supporting frame 5; the movable frame 6 is arranged in an inverted "L" shape;

[0067] Left and right moving components 7, there are two left and right moving components 7, which are respectively arranged between the moving frame 6 and the supporting frame 5;

[0068] The connecting frame 8 is two and is respectively arranged at the lower side of the moving frame 6; the connecting frame 8 is composed of a straight rod 8-1, a straight rod 8-2 and an inclined rod 8-3, the bottom of the straight rod 8-1 is fixedly provided with an inclined rod 8-3, and the inclined rod 8-3 is inclined from top to bottom and from outside to inside, and the straight rod 8-2 is fixedly provided at the lower end of the inclined rod 8-3;

[0069] Expanders 9, there are two expanders 9, which are respectively arranged at the lower side of the second straight rod 8-2;

[0070] Through the above technical solution design, the expander 9 expands the incision, the front-rear moving component 3 moves and adjusts the expander 9 in the front-rear direction, and the left-right moving component 7 moves and adjusts the expander 9 in the left-right direction.

[0071] Embodiment 2:

[0072] See also Figure 1-Figure 10 , further improved on the basis of Example 1, the forward and backward moving component 3 comprises:

[0073] Support blocks 3-1, there are two support blocks 3-1, which are fixedly arranged at the bottom of the bed board 2 and are respectively arranged at the front and rear sides of the support frame 1;

[0074] A connecting block 3-2, wherein the connecting block 3-2 is inserted into the front and rear support blocks 3-1, and the connecting block 3-2 is arranged on the lower side of the support frame 1; the inner side wall of the connecting block 3-2 is provided with teeth 3-3; the front and rear sides of the connecting block 3-2 are both provided with limit platforms 3-12, and the limit platforms 3-12 are arranged on the outer side of the support block 3-1;

[0075] A connecting platform 3-4, wherein the connecting platform 3-4 is fixedly arranged on the upper side of the connecting block 3-2, and the connecting platform 3-4 is arranged between the front and rear supporting blocks 3-1, and the connecting platform 3-4 is fixedly arranged at the bottom of the horizontal end of the supporting frame 1;

[0076] The central shaft 3-5 is screwed to the bottom of the bed plate 2 through a bearing, and the central shaft 3-5 is arranged on one side close to the tooth 3-3;

[0077] Rotating member 3-6, the rotating member 3-6 is sleeved and fixed on the central shaft 3-5, and the rotating member 3-6 is provided with arc teeth 3-7 on the side close to the connecting block 3-2, and the arc teeth 3-7 are meshed with the teeth 3-3; the rotating member 3-6 is provided with a groove 3-8 on the side away from the connecting block 3-2;

[0078] A turntable 3-9, wherein the turntable 3-9 is disposed on the upper side of the rotating member 3-6, a rotating support 3-10 is fixedly disposed at the bottom of the turntable 3-9, and the rotating support 3-10 is slidably penetrated in the strip groove 3-8;

[0079] The rotating motor 3-11 is fixedly arranged at the bottom of the bed plate 2, and the rotating motor 3-11 is arranged on the upper side of the rotating disk 3-9, and the output shaft of the rotating motor 3-11 is fixedly arranged on the rotating disk 3-9; the specific use model of the rotating motor 3-11 is directly purchased, installed and used from the market according to actual use requirements;

[0080] Through the above technical solution design, when the turntable 3-9 rotates, it drives the rotating support 3-10 to move in the groove 3-8, so that the rotating member 3-6 rotates around the rotation center of the central axis 3-5, and the arc-shaped teeth 3-7 engage and drive the teeth 3-3 to move the connecting block 3-2 to move the support frame 1 in the front and rear directions.

[0081] Embodiment 3:

[0082] See also Figure 1-Figure 10 , further improved on the basis of Example 1, the left-right moving component 7 comprises:

[0083] The movable frame 7-1 is fixedly arranged on a side wall of the movable frame 6 close to the supporting frame 5, and the movable frame 7-1 is slidably arranged in the supporting frame 5 through a sliding pair; movable teeth 7-2 are arranged on the inner walls of the front and rear sides of the movable frame 7-1;

[0084] The driving motor 7-3 is fixedly arranged on the upper side of the supporting frame 5. After the output shaft of the driving motor 7-3 passes through the top plate of the supporting frame 5, it is arranged inside the supporting frame 5 and is fixedly provided with a driving shaft, which is arranged inside the moving frame 7-1. The specific model of the driving motor 7-3 is purchased directly from the market, installed and used according to the actual use requirements.

[0085] A driving gear 7-4, wherein the driving gear 7-4 is sleeved and fixed on the driving shaft, and the driving gear 7-4 is arranged on the upper side of the moving frame 7-1;

[0086] Transmission gear 7-5, the transmission gear 7-5 is meshed and arranged on one side of the driving gear 7-4, and the transmission gear 7-5 is arranged on the upper side of the mobile frame 7-1, a transmission shaft is passed through and fixed inside the transmission gear 7-5, the transmission shaft is arranged in the mobile frame 7-1, and the upper end of the transmission shaft is screwed and arranged in the inner top surface of the support frame 5 through a bearing;

[0087] The moving gear 7-6 is two and is respectively sleeved and fixed on the driving shaft and the transmission shaft. The moving gear 7-6 is arranged on the lower side of the driving gear 7-4. The moving gear 7-6 is respectively meshed with the adjacent moving gear 7-2.

[0088] Through the above technical solution design, the driving gear 7-4 rotates to engage and drive the transmission gear 7-5, so that the transmission shaft and the driving shaft rotate at the same time, so that the moving gear 7-6 rotates to drive the moving tooth 7-2, so that the moving frame 7-1 moves.

[0089] Embodiment 4:

[0090] See also Figure 1-Figure 10 , further improved on the basis of Example 1, a moving groove 6-1 is provided in the vertical end of the moving frame 6, a moving support block 10 is slidably penetrated in the moving groove 6-1, and the connecting frame 8 is arranged at the bottom of the moving support block 10; a lifting motor 11 is provided on the horizontal end of the moving frame 6, and a screw rod 12 is provided after the output shaft of the lifting motor 11 passes through the horizontal end of the moving frame 6, and a screw tube 13 is provided on the screw rod 12 through a threaded screw sleeve, and the bottom end of the screw tube 13 is fixedly arranged on the moving support block 10;

[0091] Through the above technical solution design, the thread drive drives the connecting frame 8.

[0092] Embodiment 5:

[0093] See also Figure 1-Figure 10 , further improved on the basis of Example 1, the upper end of the lifting cylinder 4 is provided with a support platform 14, and a rotating motor 15 is provided in the support platform 14. The specific use model of the rotating motor 15 is directly purchased and installed from the market according to actual use requirements, and the upper end of the output shaft of the rotating motor 15 is fixedly set at the bottom of the support frame 5; a rotating frame 16 is movably sleeved on the support platform 14, and the rotating frame 16 is fixedly set at the bottom of the support frame 5;

[0094] Through the above technical solution design, the support frame 5 is rotated to change the angle of the expander 9.

[0095] When using the present invention, the patient lies on the bed board 2, with the neck resting on the neck support platform 17 and the head in the groove 17-1, so that the neck is exposed to the greatest extent; according to the position of the incision, the rotating motor 3-11 is started to rotate the turntable 3-9, driving the rotating support platform 3-10 to move in the groove 3-8, so that the rotating member 3-6 rotates around the rotation center of the central axis 3-5, and the arc teeth 3-7 engage and drive the teeth 3-3 to move the connecting block 3-2 to move the support frame 1 in the front and rear directions until the expander 9 moves to the upper side of the incision; the lifting cylinder 4 is started to drive the expander 9 to move downward close to the upper side of the incision; and by starting the drive motor 7-3, The driving gear 7-4 rotates to engage and drive the transmission gear 7-5, so that the transmission shaft and the driving shaft rotate at the same time, so that the moving gear 7-6 rotates to drive the moving tooth 7-2, so that the moving frame 7-1 moves, and the expander 9 moves to the top of the incision; the lifting motor 11 is started to rotate the screw 12 to drive the screw tube 13, so that the moving support block 10 moves in the moving groove 6-1, and drives the expander 9 downward into the incision; finally, the driving motor 7-3 is started again to rotate in the opposite direction, so as to drive the moving frame 7-1 to move outward, and the moving frame 6 drives the expander 9 to move outward to expand the incision, realize the traction and fixation of the incision, and increase the field of view of the surgical cavity.

[0096] Compared with the prior art, the present invention has the following beneficial effects:

[0097] 1. Add two left and right expanders 9 at the location of the neck incision, and drive the expanders 9 to expand and open the incision, thereby increasing the visual field of the surgical cavity;

[0098] 2. By driving the rotating member 3-6 to rotate around the rotation center of the central axis 3-5, the connecting block 3-2 is driven by the meshing driving cooperation of the teeth 3-3, so that the expander 9 moves forward and backward and is adjusted to a suitable position;

[0099] 3. The driving gear 7-4 and the transmission gear 7-5 are meshed and driven to realize synchronous and opposite rotation, so that the two moving gears 7-6 rotate synchronously in opposite directions to drive the moving frame 7-1 and adjust the expander 9 to move left and right;

[0100] 4. The setting of the connecting frame 8 enables the expander 9 to expand the incision while reducing obstacles, which is conducive to seeing the inside of the surgical cavity clearly.

[0101] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A head and neck surgical cavity fixing traction device, comprising a support frame (1), wherein the support frames (1) are two and both are arranged in an "L"-shaped structure, the two support frames (1) are arranged on the left and right sides of a bed board (2) opposite to each other, and the vertical ends of the support frames (1) are arranged in contact with the outside of the bed board (2), and the horizontal ends of the support frames (1) are arranged in contact with the bottom of the bed board (2); It is characterized in that It also contains: A forward and backward moving assembly (3), wherein the forward and backward moving assembly (3) is two and is respectively arranged on the lower side of the supporting frame (1); Lifting cylinders (4), there are two lifting cylinders (4), which are respectively fixedly arranged at the upper ends of the vertical ends in the support frame (1); Support frames (5), wherein the number of the support frames (5) is two and they are respectively arranged on the upper side of the lifting cylinder (4); A movable frame (6), wherein the movable frames (6) are two in number and are respectively arranged on one side of the support frame (5); the movable frame (6) is arranged in an inverted "L"-shaped structure; Left and right moving components (7), the number of the left and right moving components (7) being two and respectively arranged between the moving frame (6) and the supporting frame (5); Connecting frames (8), two of which are respectively arranged on the lower side of the moving frame (6); Expanders (9), there are two expanders (9), which are respectively arranged on the lower side of the connecting frame (8).

2. A head and neck surgery cavity fixing traction device according to claim 1, characterized in that: The forward and backward moving component (3) comprises: Support blocks (3-1), wherein the support blocks (3-1) are two in number and are fixedly arranged at the bottom of the bed board (2) and are respectively arranged at the front and rear sides of the support frame (1); A connecting block (3-2), wherein the connecting block (3-2) is inserted into the front and rear supporting blocks (3-1), and the connecting block (3-2) is arranged on the lower side of the supporting frame (1); the inner side wall of the connecting block (3-2) is provided with teeth (3-3); A connecting platform (3-4), wherein the connecting platform (3-4) is fixedly arranged on the upper side of the connecting block (3-2), and the connecting platform (3-4) is arranged between the front and rear supporting blocks (3-1), and the connecting platform (3-4) is fixedly arranged at the bottom of the horizontal end of the supporting frame (1); A central shaft (3-5), wherein the central shaft (3-5) is screwed to the bottom of the bed plate (2) through a bearing, and the central shaft (3-5) is arranged on a side close to the teeth (3-3); A rotating member (3-6), wherein the rotating member (3-6) is sleeved and fixed on the central shaft (3-5), and an arc-shaped tooth (3-7) is provided on a side of the rotating member (3-6) close to the connecting block (3-2), and the arc-shaped tooth (3-7) is meshed with the tooth (3-3); and a groove (3-8) is provided inside the rotating member (3-6) on a side away from the connecting block (3-2); A rotating disk (3-9), wherein the rotating disk (3-9) is arranged on the upper side of the rotating member (3-6), a rotating support platform (3-10) is fixedly arranged at the bottom of the rotating disk (3-9), and the rotating support platform (3-10) is slidably arranged in the strip groove (3-8); A rotating motor (3-11) is fixedly arranged at the bottom of the bed board (2), and the rotating motor (3-11) is arranged on the upper side of the turntable (3-9), and the output shaft of the rotating motor (3-11) is fixedly arranged on the turntable (3-9).

3. A head and neck surgery cavity fixing traction device according to claim 2, characterized in that: Limiting platforms (3-12) are arranged on both the front and rear sides of the connection block (3-2), and the limiting platforms (3-12) are arranged on the outside of the supporting block (3-1).

4. The head and neck surgery cavity fixing traction device according to claim 1, characterized in that: The left-right moving component (7) comprises: A movable frame (7-1), wherein the movable frame (7-1) is fixedly arranged on a side wall of the movable frame (6) close to the supporting frame (5), and the movable frame (7-1) is slidably arranged in the supporting frame (5) through a sliding pair; movable teeth (7-2) are arranged on both the front and rear inner walls of the movable frame (7-1); A driving motor (7-3), wherein the driving motor (7-3) is fixedly arranged on the upper side of the supporting frame (5), and an output shaft of the driving motor (7-3) passes through a top plate of the supporting frame (5), and is arranged inside the supporting frame (5), and a driving shaft is fixedly arranged thereon, and the driving shaft is arranged inside the moving frame (7-1); A driving gear (7-4), wherein the driving gear (7-4) is sleeved and fixed on the driving shaft, and the driving gear (7-4) is arranged on the upper side of the moving frame (7-1); A transmission gear (7-5), the transmission gear (7-5) is meshed and arranged on one side of the driving gear (7-4), and the transmission gear (7-5) is arranged on the upper side of the moving frame (7-1), a transmission shaft is passed through and fixed inside the transmission gear (7-5), the transmission shaft is arranged in the moving frame (7-1), and the upper end of the transmission shaft is screwed and arranged in the inner top surface of the support frame (5) through a bearing; The movable gear (7-6) is two in number and is respectively sleeved and fixed on the driving shaft and the transmission shaft. The movable gear (7-6) is arranged on the lower side of the driving gear (7-4). The movable gear (7-6) is respectively meshed with adjacent movable teeth (7-2).

5. The head and neck surgery cavity fixing traction device according to claim 1, characterized in that: A moving groove (6-1) is arranged in the vertical end of the moving frame (6), a moving support block (10) is slidably inserted in the moving groove (6-1), and a connecting frame (8) is arranged at the bottom of the moving support block (10); a lifting motor (11) is arranged on the horizontal end of the moving frame (6), and a screw rod (12) is arranged after the output shaft of the lifting motor (11) passes through the horizontal end of the moving frame (6), a screw tube (13) is arranged on the screw rod (12) through a threaded connection, and the bottom end of the screw tube (13) is fixedly arranged on the moving support block (10).

6. The head and neck surgery cavity fixing traction device according to claim 5, characterized in that: The connecting frame (8) is composed of a first straight rod (8-1), a second straight rod (8-2) and an inclined rod (8-3); the first straight rod (8-1) is fixedly arranged at the bottom of the movable support block (10); the bottom of the first straight rod (8-1) is fixedly arranged with an inclined rod (8-3), and the inclined rod (8-3) is inclined from top to bottom and from outside to inside; the second straight rod (8-2) is fixedly arranged at the lower end of the inclined rod (8-3); and the expander (9) is fixedly arranged at the bottom end of the second straight rod (8-2).

7. The head and neck surgery cavity fixing traction device according to claim 1, characterized in that: A support platform (14) is arranged at the upper end of the lifting cylinder (4), and a rotating motor (15) is arranged inside the support platform (14). The upper end of the output shaft of the rotating motor (15) is fixedly arranged at the bottom of the supporting frame (5).

8. The head and neck surgery cavity fixing traction device according to claim 7, characterized in that: A rotating frame (16) is movably mounted on the support platform (14), and the rotating frame (16) is fixedly arranged at the bottom of the support frame (5).

9. The head and neck surgery cavity fixing traction device according to claim 1, characterized in that: A neck support platform (17) is arranged on the upper rear end of the bed board (2), and a groove (17-1) is arranged on the upper rear end of the neck support platform (17).

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