Maxillofacial fixator with waste liquid extraction structure

Abstract

The present invention discloses a maxillofacial fixator with a waste liquid extraction structure, which relates to the field of maxillofacial surgery technology, and includes two mounting mechanisms, each of which is fixedly provided with a distance adjustment mechanism at the top, two position adjustment mechanisms are arranged between the two distance adjustment mechanisms, and two fixing mechanisms are arranged on one side of each position adjustment mechanism, one side of one distance adjustment mechanism is fixedly provided with a waste liquid extraction mechanism, and the position adjustment mechanism includes a slide bar, both ends of the slide bar are fixedly provided with an adjustment box, and the bottom end of each adjustment box is rotatably connected with a threaded sleeve. The distance adjustment mechanism of the invention cooperates with the position adjustment mechanism to realize the approach or distance between the two position adjustment mechanisms, and the position adjustment mechanism cooperates with the fixing mechanism to realize the adjustment of various directions and angles of the fixing mechanism, which makes the operation of personnel more flexible and convenient, and ensures the multi-directional traction and fixation of the face tissue and the progress of the operation.

Description

Technical Field

[0001] The invention relates to the technical field of maxillofacial surgery, in particular to a maxillofacial fixator with a waste liquid extraction structure. Background Art

[0002] Oral and maxillofacial surgery is a discipline that focuses on surgical treatment and the prevention and treatment of oral organs (teeth, alveolar bones, lips, cheeks, tongue, palate, pharynx, etc.), facial soft tissues, maxillofacial bones (maxilla, mandible, zygomatic bone, etc.), temporomandibular joint, salivary glands, and certain neck-related diseases. During maxillofacial surgery, such as oral and maxillofacial tumor surgery and gum surgery, a submandibular incision is required, and the mouth needs to be kept open during the operation.

[0003] In view of this, the utility model patent with the authorization announcement number CN219230160U discloses a fixator for maxillofacial surgery nursing, including a mounting frame, the bottom and top of the mounting frame are respectively provided with a first support mechanism and a second support mechanism, the middle of the mounting frame is provided with a fixing mechanism, the first support mechanism and the second support mechanism respectively include a mounting shell fixedly installed at the bottom and top of the mounting frame, the inside of the mounting shell is rotatably provided with a first threaded rod, and the outer side of the second threaded rod is threadedly connected with a threaded cylinder. The utility model can drive the support seat and the support plate to move by rotating the first knob in the first support mechanism and the second support mechanism, so as to facilitate the support and positioning of the patient's chin and head, and by rotating the second knob, the spacing between the maxillofacial fixing plates on both sides can be adjusted, so as to facilitate the fixation of the patient's maxillofacial part, and the flexibility is higher, so as to facilitate the adjustment according to the patient's face, thereby facilitating the positioning effect of the patient's face.

[0004] However, there are still some problems with the maxillofacial fixator in the above patent: the existing maxillofacial fixator is not flexible enough when used, and personnel cannot adjust the maxillofacial fixator in multiple directions and angles, which makes it inconvenient for personnel to use; and if multiple incisions are performed on the maxillofacial area, it is difficult to perform multi-directional traction and fixation of the maxillofacial tissues, which affects the progress of the operation. At the same time, during the operation, when the patient lies on his back, the blood generated by the operation and the waste liquid generated by disinfection are easy to enter the patient's oral cavity, which is easy to cause harm to the patient. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a maxillofacial fixator with a waste liquid extraction structure, which solves the problem that the existing maxillofacial fixator is not flexible enough when used, and personnel cannot adjust the maxillofacial fixator in multiple directions and angles. If multiple incisions are performed on the maxillofacial area, it is difficult to perform multi-directional traction and fixation of the maxillofacial tissues, which affects the progress of the operation. At the same time, during the operation, when the patient lies on his back, the blood generated by the operation, the waste liquid generated by disinfection, etc. are easy to enter the patient's oral cavity, which is easy to cause harm to the patient.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a maxillofacial fixator with a waste liquid extraction structure, comprising two mounting mechanisms, each of which is fixedly provided with a distance adjustment mechanism at the top end, two position adjustment mechanisms are provided between the two distance adjustment mechanisms, and two fixing mechanisms are provided on one side of each position adjustment mechanism, and a waste liquid extraction mechanism is fixedly provided on one side of one of the distance adjustment mechanisms;

[0007] The position adjustment mechanism comprises a slide rod, both ends of the slide rod are fixedly provided with an adjustment box, the bottom end of each adjustment box is rotatably connected with a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected with a threaded column, and the top of the threaded sleeve is fixedly provided with a first worm gear, each adjustment box is rotatably connected with a first worm, one side of the first worm gear is meshed with one side of the first worm gear, and a transmission shaft is fixedly provided between the two first worm gears;

[0008] The fixing mechanism includes a first movable sleeve, a second movable sleeve is fixedly provided at the bottom end of the first movable sleeve, a movable column is inserted in the second movable sleeve, a support ear is fixedly provided at one end of the movable column, a second worm gear is rotatably connected to the middle part of the top end of the support ear, an arc-shaped frame is fixedly provided on the side of the top end of the support ear, a second worm is rotatably connected in the arc-shaped frame, one side of the second worm is meshed with one side of the second worm gear, a docking column is inserted in the docking hole opened at the top end of the second worm gear, a support block is fixedly provided at the bottom end of the docking column, a fixed clamping rod is fixedly provided at the bottom end of the support block, the inner wall of the fixed clamping rod is rotatably connected to the driving screw, and the outer wall of the driving screw is rotatably connected to the movable clamping rod;

[0009] The waste liquid extraction mechanism includes a support plate, a liquid pump is installed on one side of the top of the support plate, the liquid inlet end of the liquid pump is fixedly connected to a liquid extraction main pipe, the outer wall of the liquid extraction main pipe is fixedly connected to the connecting hole opened in the inner wall of the concave liquid collecting piece, the top of the concave liquid collecting piece is fixedly connected to a conical ventilation pipe, and liquid inlet holes are opened on both sides of the bottom end of the concave liquid collecting piece, one side of each of the liquid inlet holes is fixedly connected to a liquid extraction branch pipe, one end of the two liquid extraction branches is fixedly connected to the surface of the liquid extraction main pipe, a connecting ring is fixedly provided on the outer wall of the concave liquid collecting piece, and support springs are fixedly provided in two receiving grooves opened on both sides of the connecting ring, one end of each of the two support springs located on the same side is fixedly connected to the surface of the corresponding arc strip, and the inner wall of each arc strip is fixedly provided with an arc plate.

[0010] Furthermore, a crank is fixedly provided at one end of each of the two first worm gears, and a first pin hole is provided at the bottom of one side of each of the threaded columns.

[0011] Furthermore, a first positioning screw hole opened at the top of the first movable sleeve is threadedly connected to a positioning knob, a second positioning screw hole opened at one side of the top of the second movable sleeve is threadedly connected to a positioning bolt, one side of the top of the arc frame is hinged with an arc cover through a hinge, and an arc block is fixedly provided on one side of the arc cover.

[0012] Furthermore, the top of the outer wall of the docking column is threadedly connected with a limiting screw ring, and limiting strips are fixedly provided on both sides of the docking column. The outer walls of the two limiting strips are respectively interlaced and connected with the limiting grooves opened on both sides of the inner wall of the docking hole. A rotating disk is fixedly provided at one end of the second worm gear, and a guide slider is provided at the top of the movable clamping rod and is slidably connected with a guide slide groove opened at the top of the inner wall of the fixed clamping rod. A rotating button is fixedly provided at one end of the driving screw.

[0013] Furthermore, a collecting bottle is placed in the placement groove opened on the other side of the top of the support plate, the outer wall of the collecting bottle is threadedly connected with a sealing cover, a liquid guide tube is inserted in the insertion hole opened in the top of the sealing cover, one side of the outer wall of the liquid guide tube is threadedly connected with a shift screw ring, and one end of the liquid guide tube is fixedly connected to the liquid outlet end of the liquid pump, and the outer walls of the two arc-shaped strips are fixedly provided with silicone protective strips.

[0014] Furthermore, the distance adjustment mechanism includes a drive box, the inner wall of the drive box is rotatably connected to a bidirectional lead screw, both sides of the outer wall of the bidirectional lead screw are threadedly connected to square drive blocks, the top of each square drive block is fixed with a docking sleeve, a fixing pin is inserted in a second pin hole opened on one side of the docking sleeve, and the outer wall of the fixing pin is interlaced and connected to the first pin hole.

[0015] Furthermore, a stepper motor is installed at one end of the drive box, and the output end of the stepper motor is fixedly connected to one end of the bidirectional lead screw. Each of the square drive blocks is interlaced and connected to the inner wall of the drive box, and the outer dimensions of the square drive block are adapted to the inner dimensions of the drive box.

[0016] Furthermore, the mounting mechanism includes a fixing frame, the top and bottom of one side of the fixing frame are fixedly provided with horizontal bars, a clamping screw is rotatably connected between the two horizontal bars, the outer wall of the clamping screw is threadedly connected with a clamping sleeve, a first limit block is fixedly provided on one side of the clamping sleeve, a clamping plate is fixedly provided on one end of the first limit block, a connecting button is fixedly provided on the top end of the clamping screw, and a hexagonal slot is provided on the top end of the connecting button.

[0017] Furthermore, two sliding columns are fixed between the two horizontal bars, and the outer wall of each sliding column is slidably connected with a sliding sleeve, and a second limit block is fixedly provided on one side of each sliding sleeve, and one end of the two second limit blocks are respectively fixedly connected to the two ends of one side of the clamping plate, and a first limit block is inserted in the first limit long hole opened in the middle part of one side of the fixing frame, and a second limit sliding block is inserted in the second limit long holes opened at both ends of one side of the fixing frame.

[0018] Furthermore, the two stepper motors and the liquid pump are electrically connected to an external power supply via an external stepper motor switch and an external liquid pump switch, respectively.

[0019] The maxillofacial fixator with a waste liquid extraction structure proposed by the present invention can bring the following beneficial effects:

[0020] 1. The maxillofacial fixator with a waste liquid extraction structure has a distance adjustment mechanism and a position adjustment mechanism, which can realize the approach or distance between the two position adjustment mechanisms. The position adjustment mechanism and the fixing mechanism can realize the adjustment of various directions and angles of the fixing mechanism. The operation of personnel is more flexible and convenient, which ensures the multi-directional traction and fixation of the face tissue and the progress of the operation.

[0021] 2. The maxillofacial fixator with a waste liquid extraction structure has a waste liquid extraction mechanism in which a liquid extraction main pipe connected to a liquid extraction pump is connected to a liquid extraction branch pipe connected to a concave liquid collecting piece, the concave liquid collecting piece is connected to a conical ventilation pipe, a supporting spring provided in a receiving groove provided in a connecting ring is connected to an arc-shaped strip, the arc-shaped strip is connected to an arc-shaped plate, and the area formed by the concave liquid collecting piece and the two arc-shaped plates can be modified according to the size of the patient's oral cavity. The device is suitable for different patients and can extract waste liquid entering the patient's oral cavity during surgery to ensure the progress of the patient's surgery.

[0022] Waste liquid extraction mechanism;

[0023] 3. The maxillofacial fixator with a waste liquid extraction structure has a fixing mechanism in which a movable column is inserted in the second movable sleeve connected to the first movable sleeve, the support ear connected to the movable column is rotatably connected to the second worm gear, the arc cover hinged to the arc frame is connected to an arc block, the docking hole provided in the second worm gear is connected to the docking column connected to the support block, the limiting strip connected to the docking column is inserted and connected to the limiting groove provided in the docking hole, and the docking column is threadedly connected with a limiting screw ring, which is convenient for personnel to remove components on the movable column, convenient for removing the fixing clamp rod, convenient for personnel to clean and disinfect, and ensure the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the distance adjustment mechanism and the position adjustment mechanism of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the installation mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the distance adjustment mechanism of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the waste liquid extraction mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure of the arc strip of the present invention;

[0031] Figure 7 It is a schematic diagram of the connection structure between the position adjustment mechanism and the fixing mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the regulating box of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0034] Fig.10 It is a schematic diagram of the internal structure of the fixed clamp rod of the present invention.

[0035] In the figure: 1. mounting mechanism; 101. fixing frame; 102. horizontal bar; 103. clamping screw; 104. sliding column; 105. clamping plate; 2. distance adjustment mechanism; 201. drive box; 202. bidirectional lead screw; 203. stepping motor; 204. square drive block; 205. docking sleeve; 206. fixing pin; 3. position adjustment mechanism; 301. sliding rod; 302. adjusting box; 303. transmission shaft; 304. crank; 305. threaded sleeve; 306. threaded column; 307. first worm; 308. first worm wheel; 4. fixing mechanism; 401. first movable sleeve; 402. positioning knob; 403. second movable sleeve; 404. positioning bolt; 405. movable sleeve Moving column; 406, support ear; 407, second worm gear; 408, arc frame; 409, second worm; 410, docking column; 411, arc cover; 412, arc block; 413, support block; 414, limit strip; 415, fixed clamp rod; 416, driving screw; 417, movable clamp rod; 5, waste liquid extraction mechanism; 501, support plate; 502, liquid pump; 503, liquid guide tube; 504, collecting bottle; 505, sealing cover; 506, liquid extraction main pipe; 507, concave liquid collecting part; 508, conical vent pipe; 509, connecting ring; 510, arc strip; 511, arc plate; 512, silicone protective strip; 513, liquid extraction branch pipe; 514, support spring. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0037] like Figures 1 to 10 As shown, an embodiment of the present invention provides a maxillofacial fixator with a waste liquid extraction structure, comprising two mounting mechanisms 1, a distance adjustment mechanism 2 is fixedly provided at the top of each mounting mechanism 1, two position adjustment mechanisms 3 are provided between the two distance adjustment mechanisms 2, two fixing mechanisms 4 are provided on one side of each position adjustment mechanism 3, and a waste liquid extraction mechanism 5 is fixedly provided on one side of one distance adjustment mechanism 2;

[0038] The position adjustment mechanism 3 includes a slide bar 301, both ends of which are fixedly provided with adjustment boxes 302, the bottom end of each adjustment box 302 is rotatably connected with a threaded sleeve 305, the inner wall of the threaded sleeve 305 is threadedly connected with a threaded column 306, and the top of the threaded sleeve 305 is fixedly provided with a first worm gear 308, each adjustment box 302 is rotatably connected with a first worm 307, one side of the first worm 307 is meshed with one side of the first worm gear 308, a transmission shaft 303 is fixedly provided between the two first worms 307, wherein one end of the two first worms 307 is fixedly provided with a crank 304, and a first pin hole is provided at the bottom of one side of each threaded column 306;

[0039] The fixing mechanism 4 includes a first movable sleeve 401, a second movable sleeve 403 is fixedly provided at the bottom end of the first movable sleeve 401, a movable column 405 is inserted in the second movable sleeve 403, a support ear 406 is fixedly provided at one end of the movable column 405, a second worm gear 407 is rotatably connected to the middle part of the top end of the support ear 406, an arc frame 408 is fixedly provided on the side of the top end of the support ear 406, a second worm 409 is rotatably connected in the arc frame 408, one side of the second worm 409 is meshed with one side of the second worm gear 407, a docking column 410 is inserted in the docking hole provided at the top end of the second worm gear 407, a support block 413 is fixedly provided at the bottom end of the docking column 410, a fixed clamping rod 415 is fixedly provided at the bottom end of the support block 413, a driving screw 416 is rotatably connected to the inner wall of the fixed clamping rod 415, and a movable clamping rod 415 is rotatably connected to the outer wall of the driving screw 416 Rod 417, a first positioning screw hole formed at the top of the first movable sleeve 401 is threadedly connected to a positioning knob 402, a second positioning screw hole formed at one side of the top of the second movable sleeve 403 is threadedly connected to a positioning bolt 404, a curved cover 411 is hingedly connected to one side of the top of the curved frame 408 through a hinge, a curved clamping block 412 is fixedly provided on one side of the curved cover 411, a limiting screw ring is threadedly connected to the top of the outer wall of the docking column 410, and limiting strips 414 are fixedly provided on both sides of the docking column 410, and the outer walls of the two limiting strips 414 are respectively interlaced and connected with the limiting grooves formed at both sides of the inner wall of the docking hole, a rotating disk is fixedly provided at one end of the second worm 409, a guide slider formed at the top of the movable clamping rod 417 is slidably connected to the guide sliding groove formed at the top of the inner wall of the fixed clamping rod 415, and a rotating button is fixedly provided at one end of the driving screw 416;

[0040] The waste liquid extraction mechanism 5 includes a support plate 501, and a liquid extraction pump 502 is installed on one side of the top of the support plate 501. The liquid inlet end of the liquid extraction pump 502 is fixedly connected to a liquid extraction main pipe 506. The outer wall of the liquid extraction main pipe 506 is fixedly connected to a connecting hole opened on the inner wall of the concave liquid collecting piece 507. The top of the concave liquid collecting piece 507 is fixedly connected to a conical ventilation pipe 508, and liquid inlet holes are opened on both sides of the bottom end of the concave liquid collecting piece 507. One side of each liquid inlet hole is fixedly connected to a liquid extraction branch pipe 513, and one end of the two liquid extraction branch pipes 513 is fixedly connected to the surface of the liquid extraction main pipe 506. The outer wall of the concave liquid collecting piece 507 is fixedly provided with a connecting ring 509, and two connecting rings 509 are opened on both sides of the connecting ring 509. A support spring 514 is fixedly provided in each storage groove, one end of each two support springs 514 located on the same side are fixedly connected to the surface of the corresponding arc strip 510, an arc plate 511 is fixedly provided on the inner wall of each arc strip 510, a collecting bottle 504 is placed in the placement groove opened on the other side of the top of the support plate 501, a sealing cover 505 is threadedly connected to the outer wall of the collecting bottle 504, a liquid guide tube 503 is inserted in the through hole opened at the top of the sealing cover 505, a shift screw ring is threadedly connected to one side of the outer wall of the liquid guide tube 503, and one end of the liquid guide tube 503 is fixedly connected to the liquid outlet end of the liquid pump 502, and a silicone protective strip 512 is fixedly provided on the outer walls of the two arc strips 510.

[0041] The distance adjustment mechanism 2 includes a drive box 201, the inner wall of which is rotatably connected to a bidirectional lead screw 202, and both sides of the outer wall of the bidirectional lead screw 202 are threadedly connected to square drive blocks 204, and the top of each square drive block 204 is fixed with a docking sleeve 205, and a fixing pin 206 is inserted in a second pin hole opened on one side of the docking sleeve 205, and the outer wall of the fixing pin 206 is interlaced with the first pin hole. A stepper motor 203 is installed at one end of the drive box 201, and the output end of the stepper motor 203 is fixedly connected to one end of the bidirectional lead screw 202, and each square drive block 204 is interlaced with the inner wall of the drive box 201, and the outer size of the square drive block 204 is compatible with the inner size of the drive box 201.

[0042] The mounting mechanism 1 comprises a fixing frame 101, a horizontal bar 102 is fixedly provided at the top and the bottom of one side of the fixing frame 101, a clamping screw 103 is rotatably connected between the two horizontal bars 102, a clamping screw sleeve is threadedly connected to the outer wall of the clamping screw 103, a first limiting block is fixedly provided at one side of the clamping screw sleeve, a clamping plate 105 is fixedly provided at one end of the first limiting block, a connecting button is fixedly provided at the top of the clamping screw 103, a hexagonal slot is provided at the top of the connecting button, two sliding columns 104 are fixedly provided between the two horizontal bars 102, and each sliding column 104 is fixedly provided with a hexagonal slot. The outer wall of the column 104 is slidably connected with a sliding sleeve, and a second limit block is fixedly provided on one side of each sliding sleeve, and one end of the two second limit blocks are respectively fixedly connected to the two ends of one side of the clamp 105, and the first limit block is inserted in the first limit long hole opened in the middle of one side of the fixed frame 101, and the second limit long holes opened at both ends of one side of the fixed frame 101 are inserted with second limit sliding blocks, and the two stepping motors 203 and the liquid pump 502 are electrically connected to the external power supply through the external stepping motor switch and the external liquid pump switch respectively.

[0043] Working principle: When using the maxillofacial fixator, it is mounted on the operating table through the mounting mechanism 1, and the clamping screw 103 on the horizontal bar 102 is rotated to drive the clamping plate 105 to move and cooperate with the fixing frame 101, so that it can be clamped on the side of the operating table;

[0044] Then, the operation position of the patient is adjusted according to the operation position. The stepper motor 203 connected to the drive box 201 can drive the bidirectional lead screw 202, thereby driving the two square drive blocks 204 to move closer or farther away. The square drive block 204 is connected to a docking sleeve 205. A fixing pin 206 is inserted in the second pin hole of the docking sleeve 205. The fixing pin 206 is inserted and connected with the first pin hole of the threaded column 306, so that the personnel can choose one or two sets of position adjustment mechanisms according to the operation requirements. Then, the personnel rotates the crank 304, and the crank 304 drives the first worm 307. The first worm 307 is driven by the transmission shaft 303. The two first worms 307 drive the two first worm wheels 308, thereby driving the threaded sleeves 305 connected to the two adjustment boxes 302 to rotate. At this time, the threaded column 306 is fixed by the fixing pin 206, thereby causing the threaded sleeve 305 to rotate on the threaded column 306, thereby changing the overall height.

[0045] During surgery, in the waste liquid extraction mechanism 5, the concave liquid collection piece 507 can be placed in the patient's oral cavity, and the support spring 514 in the receiving groove provided in the connecting ring 509 is connected to the arc strip 510. The support spring 514 is compressed by the patient's oral cavity, so that the silicone protective strip 512 can be pressed against the oral cavity surface. The concave liquid collection piece 507 is connected to the concave liquid collection piece 507. The concave vent pipe 508 is outwardly connected to ensure the patient's breathing. The concave liquid collection piece 507 cooperates with the arc plate 511 to collect waste liquid. The liquid extraction pump 502 can extract waste liquid through the liquid extraction main pipe 506 and the liquid extraction branch pipe 513, and then enter the collection bottle 504 for storage through the liquid guide pipe 503;

[0046] In the fixing mechanism 4, the first movable sleeve 401 can slide on the sliding rod 301, the first movable sleeve 401 can rotate thereon, the movable column 405 can move in the second movable sleeve 403, the movable column 405 can rotate therein, rotating the second worm gear 409 can drive the second worm gear 407, and then drive the support block 413 connected to the docking column 410, so as to change the angle of the fixed clamp rod 415, and personnel can rotate the driving screw 416 to drive the movable clamp rod 417 to cooperate with the fixed clamp rod 415 to fix the maxillofacial tissue, thereby completing the traction and fixation of the maxillofacial tissue.

Claims

1. A maxillofacial fixator with a waste liquid extraction structure, comprising two mounting mechanisms (1), each of the mounting mechanisms (1) being fixedly provided with a distance adjustment mechanism (2) at the top end, two position adjustment mechanisms (3) being provided between the two distance adjustment mechanisms (2), two fixing mechanisms (4) being provided on one side of each position adjustment mechanism (3), a waste liquid extraction mechanism (5) being fixedly provided on one side of one of the distance adjustment mechanisms (2), characterized in that: The position adjustment mechanism (3) comprises a slide bar (301), both ends of which are fixedly provided with adjustment boxes (302), the bottom end of each adjustment box (302) is rotatably connected with a threaded sleeve (305), the inner wall of the threaded sleeve (305) is threadedly connected with a threaded column (306), and the top end of the threaded sleeve (305) is fixedly provided with a first worm gear (308), each adjustment box (302) is rotatably connected with a first worm (307), one side of the first worm (307) is meshed with one side of the first worm gear (308), and a transmission shaft (303) is fixedly provided between the two first worms (307); The fixing mechanism (4) comprises a first movable sleeve (401), a second movable sleeve (403) is fixedly provided at the bottom end of the first movable sleeve (401), a movable column (405) is inserted in the second movable sleeve (403), a support ear (406) is fixedly provided at one end of the movable column (405), a second worm gear (407) is rotatably connected to the middle part of the top end of the support ear (406), an arc frame (408) is fixedly provided on the side of the top end of the support ear (406), and a second worm gear (407) is rotatably connected in the arc frame (408). (409), one side of the second worm (409) is meshed with one side of the second worm wheel (407), a docking post (410) is inserted into a docking hole opened at the top of the second worm wheel (407), a support block (413) is fixedly provided at the bottom end of the docking post (410), a fixed clamping rod (415) is fixedly provided at the bottom end of the support block (413), the inner wall of the fixed clamping rod (415) is rotatably connected to a driving screw (416), and the outer wall of the driving screw (416) is rotatably connected to a movable clamping rod (417); The waste liquid extraction mechanism (5) comprises a support plate (501), a liquid extraction pump (502) is installed on one side of the top end of the support plate (501), a liquid extraction main pipe (506) is fixedly connected to the liquid inlet end of the liquid extraction pump (502), the outer wall of the liquid extraction main pipe (506) is fixedly connected to a connecting hole provided on the inner wall of a concave liquid collecting member (507), the top end of the concave liquid collecting member (507) is fixedly connected to a conical vent pipe (508), and liquid inlet holes are provided on both sides of the bottom end of the concave liquid collecting member (507), and one side of each of the liquid inlet holes is fixedly connected to the concave liquid collecting member (507). A liquid extraction branch pipe (513) is connected, and one end of the two liquid extraction branch pipes (513) is fixedly connected to the surface of the liquid extraction main pipe (506). A connecting ring (509) is fixedly provided on the outer wall of the concave liquid collecting member (507). Support springs (514) are fixedly provided in two receiving grooves opened on both sides of the connecting ring (509). One end of each of the two support springs (514) located on the same side is fixedly connected to the surface of the corresponding arc strip (510), and an arc plate (511) is fixedly provided on the inner wall of each arc strip (510).

2. The maxillofacial fixator with a waste liquid extraction structure according to claim 1, characterized in that: One end of each of the two first worms (307) is fixedly provided with a crank (304), and the bottom of one side of each of the threaded columns (306) is provided with a first pin hole.

3. The maxillofacial fixator with a waste liquid extraction structure according to claim 1, characterized in that: A first positioning screw hole opened at the top of the first movable sleeve (401) is threadedly connected to a positioning knob (402); a second positioning screw hole opened at one side of the top of the second movable sleeve (403) is threadedly connected to a positioning bolt (404); one side of the top of the arc frame (408) is hingedly connected to an arc cover (411) through a hinge, and an arc block (412) is fixedly provided on one side of the arc cover (411).

4. The maxillofacial fixator with a waste liquid extraction structure according to claim 1, characterized in that: The top of the outer wall of the docking column (410) is threadedly connected to a limiting screw ring, and limiting strips (414) are fixedly provided on both sides of the docking column (410). The outer walls of the two limiting strips (414) are respectively inserted and connected with the limiting grooves opened on both sides of the inner wall of the docking hole. A rotating disk is fixedly provided at one end of the second worm gear (409). The guide slider provided at the top of the movable clamping rod (417) is slidably connected with the guide sliding groove opened at the top of the inner wall of the fixed clamping rod (415). A rotating button is fixedly provided at one end of the driving screw (416).

5. The maxillofacial fixator with a waste liquid extraction structure according to claim 1, characterized in that: A collecting bottle (504) is placed in a placement groove opened on the other side of the top of the support plate (501); a sealing cover (505) is threadedly connected to the outer wall of the collecting bottle (504); a liquid guide tube (503) is inserted into a through hole opened on the top of the sealing cover (505); a shift screw ring is threadedly connected to one side of the outer wall of the liquid guide tube (503); one end of the liquid guide tube (503) is fixedly connected to the liquid outlet end of the liquid pump (502); and a silicone protective strip (512) is fixedly provided on the outer walls of the two arc-shaped strips (510).

6. The maxillofacial fixator with a waste liquid extraction structure according to claim 2, characterized in that: The distance adjustment mechanism (2) comprises a drive box (201), the inner wall of the drive box (201) is rotatably connected to a bidirectional lead screw (202), both sides of the outer wall of the bidirectional lead screw (202) are threadedly connected to square drive blocks (204), the top of each square drive block (204) is fixed with a docking sleeve (205), a fixing pin (206) is inserted into a second pin hole opened on one side of the docking sleeve (205), and the outer wall of the fixing pin (206) is inserted and connected to the first pin hole.

7. The maxillofacial fixator with a waste liquid extraction structure according to claim 6, characterized in that: A stepper motor (203) is installed at one end of the drive box (201), and an output end of the stepper motor (203) is fixedly connected to one end of a bidirectional lead screw (202). Each of the square drive blocks (204) is connected to the inner wall of the drive box (201) by insertion, and the outer dimensions of the square drive blocks (204) are compatible with the inner dimensions of the drive box (201).

8. The maxillofacial fixator with a waste liquid extraction structure according to claim 1, characterized in that: The mounting mechanism (1) comprises a fixing frame (101), a cross bar (102) is fixedly provided at the top and bottom of one side of the fixing frame (101), a clamping screw (103) is rotatably connected between the two cross bars (102), the outer wall of the clamping screw (103) is threadedly connected to a clamping screw sleeve, a first limit block is fixedly provided at one side of the clamping screw sleeve, a clamping plate (105) is fixedly provided at one end of the first limit block, a connecting button is fixedly provided at the top end of the clamping screw (103), and a hexagonal slot is provided at the top end of the connecting button.

9. The maxillofacial fixator with a waste liquid extraction structure according to claim 8, characterized in that: Two sliding columns (104) are fixedly arranged between the two horizontal bars (102), the outer wall of each sliding column (104) is slidably connected with a sliding sleeve, a second limit block is fixedly arranged on one side of each sliding sleeve, one end of the two second limit blocks are respectively fixedly connected to the two ends of one side of the clamping plate (105), a first limit block is inserted into a first limit long hole opened in the middle of one side of the fixing frame (101), and second limit sliding blocks are inserted into the second limit long holes opened at both ends of one side of the fixing frame (101).

10. The maxillofacial fixator with a waste liquid extraction structure according to claim 7, characterized in that: The two stepper motors (203) and the liquid pump (502) are electrically connected to an external power source via an external stepper motor switch and an external liquid pump switch, respectively.

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