CN115317045A

CN115317045A - Thyroid surgery support

Info

Publication number: CN115317045A
Application number: CN202210986143.9A
Authority: CN
Inventors: 郭维军
Original assignee: Chongqing Chenglian Medical Instrument Co ltd
Current assignee: Chongqing Chenglian Medical Instrument Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-11-11

Abstract

The invention relates to a thyroid surgery bracket, which comprises the following components: be used for fixing near the thyroid gland skin and make the naked drag hook ware of thyroid gland, be used for supporting and the track subassembly of fixed drag hook ware and be used for the centre gripping on the operating table to support and go up and down the centre gripping riser of track subassembly, wherein the track subassembly connect and be in centre gripping riser and drag hook ware between, just the drag hook ware can remove along track subassembly. Compared with the prior art that the incision is opened by directly adopting the supporting rod, the height of the retractor is adjusted according to requirements, and meanwhile, the retractor is connected with the retractor through the track assembly, so that the retractor moves along the track assembly, and the angle of the retractor can be further adjusted.

Description

Thyroid surgery support

Technical Field

The invention relates to the technical field of medical instruments, in particular to a thyroid surgery bracket.

Background

Thyroid gland is a very important gland of vertebrates and belongs to an endocrine organ. In mammals, it is located below the neck thyroid cartilage, on both sides of the trachea. The thyroid gland of human is butterfly-like and just like the thyroid gland, so named, the thyroid parenchyma is mainly composed of many thyroid follicles; follicular epithelial cells function to synthesize, store and secrete thyroid hormones; thyroid hormone has the main functions of promoting the metabolism of organisms and maintaining the normal growth and development of the organisms, and has great influence on the development of skeletons and nervous systems; when thyroid gland secretion function is low, the basal metabolic rate of the body is low, and myxedema may occur.

Thyroid is an important organ part of a human body, and the number of patients suffering from thyroid diseases is not large enough every year. Surgical operation is one of effective means for treating thyroid diseases, and thyroid operation generally refers to total thyroidectomy, refers to total removal of one lateral thyroid gland, is not total removal of two thyroid glands, is one type of thyroidectomy, and is partial removal. The thyroid surgery is common, during the thyroid surgery, because the thyroid is located at the neck, the head and the shoulder of a patient need to be fixed, so that the thyroid part is fully exposed, and the angle can be adjusted during the surgery, so that a doctor can clearly see the diseased part to effectively perform the surgical treatment, so that at present, the support is most commonly used for fixing the neck, and during the thyroid surgery, the skin on both sides of the neck surgery part needs to be stretched, and then the internal thyroid is cut.

Disclosure of Invention

Aiming at the problems in the prior art, the technical problems to be solved by the invention are as follows: the current incision distractor cannot adjust the angle once being fixed.

In order to solve the technical problems, the invention adopts the following technical scheme: a thyroid surgery stent comprising the following components:

the hook pulling device is used for fixing the skin near the thyroid gland to expose the thyroid gland;

the track assembly is used for supporting and fixing the retractor;

the clamping lifter is used for clamping on an operating table and supporting and lifting the clamping lifter of the track assembly, wherein the track assembly is connected between the clamping lifter and the retractor, and the retractor can move along the track assembly.

According to the invention, the hook device for fixing the skin near the thyroid gland to expose the thyroid gland is additionally arranged, and meanwhile, the lower part of the hook device is fixed on an operating table through the clamping lifter.

In order to adjust fast and conveniently the angle of two draw hook pieces guarantees simultaneously the draw hook ware can remove along the track on the track subassembly, the draw hook ware include two bilateral symmetry's first draw hook subassembly, each first draw hook subassembly includes a draw hook piece, bulb telescoping assembly one, bulb swivel nut one, damping cover one and fourth knob, damping cover one end and bulb telescoping assembly one end are connected, bulb telescoping assembly one other end is connected with articulated unit, articulated unit and draw hook ball damping cover one on be provided with the first U type draw-in groove that is used for activity joint track subassembly, fourth knob be located damping cover a side, bulb swivel nut one side threaded connection have the fourth knob, fourth knob on be provided with the first spacing post with a damping cover joint, in damping cover one the activity of pegging graft in bulb swivel nut one, and damping cover be provided with a spacing post complex clamping groove.

In the structure, through set up a first U type draw-in groove on damping cover one, with first U type draw-in groove card in on the square rail of track subassembly below promptly, guarantee simultaneously that the bore of first U type draw-in groove matches with square orbital diameter, guarantee that first U type draw-in groove removes or rotates along square orbital shape, finally can adjust the angle and the position of two hook plates, in addition through set up a fourth knob at damping cover side, the rotatory holder radial movement who guarantees first spacing post head of first spacing post of drive of fourth knob rotation, can be with the opening grow or diminish of first U type draw-in groove at the in-process that removes, finally take off or install square rail, and also make things convenient for the later stage to dismantle, can through operation fourth knob in the opposite direction, consequently, can further adjust as required through above-mentioned structure setting the drag hook ware can be rotatory or remove along square rail, and when arriving suitable position, can also realize locking the drag hook ware on corresponding position, compare the current operation mode through near the thyroid gland skin, this structure has and accords with the operation that the operation is strong, the suitability is stronger crowd uses.

Preferably, the second drag hook assembly comprises a drag hook sheet, a second ball head telescopic assembly, a second ball head thread sleeve, a second damping sleeve and a third knob, one end of the drag hook sheet is connected with one end of the second ball head telescopic assembly in a ball joint mode, the other end of the second ball head telescopic assembly is connected with the second damping sleeve in a ball joint mode, a first U-shaped clamping groove matched with the first limiting column is formed in the second damping sleeve, a damping piece is inserted into the side edge of the first U-shaped clamping groove in a plug-in mode, the damping piece is connected with the end portion of the third knob in a buckle mode, the second ball head thread sleeve is connected to the two sides of the second damping sleeve in a sleeve mode, the second ball head thread sleeve on one side is connected with the third knob in a screw joint mode, and the second ball head thread sleeve on the other side is connected with one end of the second ball head telescopic assembly in a ball joint mode.

Preferably, the first ball head telescopic assembly comprises a first telescopic sleeve, a first telescopic rod body and a first telescopic knob, one end of the first telescopic sleeve is provided with a first clamping seat, one end of the first telescopic rod body is connected with the drag hook sheet, the other end of the first telescopic rod body is movably inserted into the first clamping seat, the first telescopic knob is in threaded connection with the first telescopic sleeve, and the first telescopic rod body can be locked in the first telescopic sleeve after the first telescopic sleeve rotates.

Through the structure setting, the flexible subassembly of bulb one owing to include flexible cover one, flexible body of rod one and flexible knob one, during the operation, at the in-process of rotatory flexible knob one, can guarantee that the first clamp splice of holder one is in the state of loosening with flexible body of rod one, this moment flexible body of rod one can be along a flexible cover horizontal migration, finally adjust the horizontal position to the hook piece, with this interval between changing two hook pieces, when adjusting suitable position, through the flexible knob one of opposite direction rotation, slowly diminish the last process that finally presss from both sides flexible body of rod one with the clamp splice of holder one under the effect of flexible knob one, guarantee that flexible body of rod one is in fixed state, consequently can adjust the interval between two hook pieces as required fast conveniently through this structure setting, make it can strut suitable size with near thyroid gland skin, further make things convenient for the doctor's operation.

Preferably, the other end of the first telescopic rod body is provided with a first bulb, the hinge unit comprises a first round pipe and a second round pipe, one end of the first round pipe is provided with a first bulb seat, the first bulb is inserted into the first bulb seat, the other end of the first round pipe is fixed with a second bulb, one end of the second round pipe is provided with a third bulb, a ball connecting rod is inserted into the third bulb and the second bulb, a bulb locking knob is connected to the side edge of the ball connecting rod in a threaded mode, and the other end of the second round pipe is connected with the drag hook sheet ball.

Preferably, this device adopts the contact mode of face and face to carry out the centre gripping, further improves the stability of centre gripping, the centre gripping riser include mainboard, locking clamp plate, v style of calligraphy locking curved boom, locking screw and lifting unit, the cooperation of face and face is realized to the one side of mainboard and locking clamp plate to constitute and be used for the centre gripping mouth of centre gripping on the operating table, lifting unit be located the mainboard on, the one end and the mainboard of v style of calligraphy locking curved boom are articulated, the other end and the locking clamp plate of v style of calligraphy locking curved boom are articulated the pivot pin is articulated at the center of v style of calligraphy locking curved boom, pivot pin and locking screw threaded connection, the one end of locking screw is fixed with the connecting pin, the connecting pin rotates to be connected in the mainboard on, the other end of locking screw is connected with operating handle, operating handle drives after the rotation, locking screw is rotatory to the drive pivot pin drives the rotation of v style of calligraphy locking curved boom rotation and changes the bore of centre gripping mouth in step.

Above-mentioned structure sets up the mode that realizes face and face clamp tightly, further improve the centre gripping effect, during operation, be located the both sides of operating table side support respectively with two planes of locking clamp plate and mainboard, constitute two clamping faces, then through waveing operating handle, operating handle is rotatory to drive the locking screw rod rotatory, the locking screw rod drives the connecting pin and rotates on the mainboard, it is rotatory to drive the commentaries on classics round pin of v style of calligraphy locking bent arm simultaneously, the one end of v style of calligraphy locking bent arm rotates on the mainboard this moment, the other end drives the locking clamp plate also rotatory, it slowly diminishes to finally guarantee the interval between locking clamp plate and the mainboard, guarantee that two clamping faces are close a bit more, finally guarantee clamping face and the more inseparable contact of operating table side support, until the clamping position, consequently, the mode of face and face centre gripping is adopted to whole structure, because the clamping face scope is wider, consequently, it is more stable to further guarantee the centre gripping.

Preferably, in order to guarantee that the operation is more convenient when lifting the hook ware, lifting unit include turbine, worm, lead screw and flexible cover one, flexible cover one is fixed on the lead screw seat of lead screw, the below of lead screw is fixed on the turbine, turbine and worm mesh, the side of worm is provided with the rotatory first knob of drive worm.

Through the structure setting, it is rotatory through the first knob of drive, first knob drives the worm rotatory, the turbine of synchronous drive side is rotatory, the lead screw that finally drives the top is rotatory, the rotatory synchronous actuation lead screw seat of lead screw reciprocates, finally drive and lead screw seat fixed connection's flexible cover one reciprocate the height of adjusting manual pincers subassembly, consequently this structure converts manual pincers subassembly linear motion reciprocating from top to bottom through adopting turbine and worm cooperation rotary work, realize the altitude mixture control to track subassembly, and because the drag hook ware is fixed on track subassembly, consequently the drag hook ware also in step carry out height adjustment along with track subassembly, the similar jack height-adjusting's of whole structure mode is compared current adoption cylinder drive overall cost and is lower, stability is better.

Preferably, the rail assembly comprises two L-shaped rail elbows and a square rail which are bilaterally symmetrical, a supporting rod is connected between one ends of the two L-shaped rail elbows, the supporting rod is movably sleeved on a supporting rod joint seat, the lower end of the supporting rod joint seat is fixedly connected with the upper end of a first telescopic sleeve, a rail clamp is fixed at the other end of the L-shaped rail elbow, a second clamping groove used for clamping the square rail is formed in each rail clamp, the square rail can move horizontally along the second clamping groove, and the two ends of the square rail are respectively clamped in the second clamping grooves. In the structure, the bore of the second clamping groove is matched with the diameter of the square rail, the square rail can be clamped in the second clamping groove and cannot drop, the square rail can be moved along the second clamping groove, the position of the square rail can be changed, and the square rail can be rapidly detached in the later stage.

Preferably, in order to further facilitate the operation, a second knob is arranged on the support rod joint seat, a second screw rod in threaded connection with the support rod joint seat is arranged on the second knob, and the end of the second screw rod is arranged in the support rod joint seat and used for clamping the support rod in the support rod joint seat when the end of the second screw rod is abutted against the support rod.

Through setting up the second knob in the above-mentioned structure, drive the second screw rod on the second knob and rotate on the track clamp and realize stretching out and realize that it presss from both sides tight or loosen the effect to the die-pin, when die-pin and second screw rod loosen, the die-pin can rotate in the track clamp this moment, further realize adjusting square orbital rotation angle as required.

Preferably, the lower portion of the track clamp is sleeved outside the L-shaped track elbow, the upper portion of the track clamp is provided with a hinge rod located outside the track clamp through a first rotating shaft hinge portion, the center of the hinge rod is hinged to a pressing hook through a second rotating shaft, an arc surface which is abutted to the side edge of the track clamp is arranged on the pressing hook, a lower opening of the pressing hook is matched with a triangular clamp opening in the track clamp to form a second clamping groove, and the side edge of the hinge rod is an operating wrench. Through the structure setting, when utilizing the operating wrench to press down, drive the hinge bar and rotate downwards, press the hook this moment under the effect of side cambered surface, guarantee to press and lift up on the under shed of hook, with second draw-in groove opening grow, when operating wrench upwards lifts up, drive the hinge bar and rotate upwards, press the hook this moment and guarantee to press the under shed of hook to push down under the effect of side cambered surface and finally realize compressing tightly square rail in the second draw-in groove, consequently, set up through above-mentioned structure and make things convenient for the later stage to dismantle square rail.

Preferably, the lifting assembly further comprises a worm wheel and worm seat, the worm wheel and the worm are located in the worm wheel and worm seat, the worm wheel and worm seat is fixedly connected with the main board, two ends of the worm are fixed on the worm wheel and worm seat through an end cover, one end of the worm extends out of the worm wheel and worm seat and then is fixedly connected with the first knob, a guide sleeve is integrally formed above the worm wheel and worm seat, the upper portion of the screw rod is located in the guide sleeve, the telescopic sleeve is movably inserted into the guide sleeve, a first bearing is connected to the upper portion and the lower portion of the worm wheel, the first bearing is sleeved outside the screw rod, the outer wall of the first bearing is matched with the inner wall of the worm wheel and worm seat, and the lower portion of the guide sleeve is fixedly connected with the worm wheel and worm seat through four positioning pins.

In the above structure: in order to facilitate fixing, two ends of the worm are fixed on a worm wheel and worm seat through end covers, meanwhile, in order to ensure that the worm can rotate smoothly, a second bearing sleeved outside the worm rod body is arranged inside each end cover, the worm can be fixed conveniently by additionally arranging the second bearing, meanwhile, the end covers can be prevented from being influenced and the supporting effect can be started when the worm rotates, and meanwhile, the worm wheel and the worm can be fixed conveniently by arranging the worm wheel and worm seat; by additionally arranging the guide sleeve, the first telescopic sleeve is guaranteed to play a role of guiding when moving up and down, and the first telescopic sleeve always moves up and down along the guide sleeve without deviation, so that the stability of moving up and down can be finally guaranteed; can play the supporting role to lead screw and turbine through setting up first bearing, avoid when guaranteeing simultaneously that the turbine is rotatory to damage the turbine worm seat with the friction of turbine worm seat.

Compared with the prior art, the invention has at least the following advantages:

1. according to the invention, the hook device for fixing the skin near the thyroid gland to expose the thyroid gland is additionally arranged, and meanwhile, the lower part of the hook device is fixed on an operating table through the clamping lifter.

This structure has easy operation, and the suitability is strong, more accords with different crowds ' use, and whole structure is through set up a first U type draw-in groove on damping cover one, with first U type draw-in groove card in on the track subassembly (the square rail of below promptly), guarantee simultaneously that the bore of first U type draw-in groove matches with square rail's diameter, guarantee that first U type draw-in groove removes or rotates along square rail's shape, can adjust the angle and the position of two draw-in hook pieces finally, in addition through set up a fourth knob at a damping cover side, the rotatory holder radial movement who guarantees first spacing toe portion of first spacing post of driving of fourth knob, can be with the opening grow or the diminishing of first U type draw-in groove at the in-process that removes, finally take off or install square rail, consequently can further adjust according to the requirement through above-mentioned structure setting the draw-in hook ware can be with rotatory or remove along square rail to when reacing suitable position, can also realize locking the draw-in the position that the draw-hook struts the ware on corresponding, compare the current operation mode through near ordinary vaulting pole skin.

Drawings

Fig. 1 is a schematic structural diagram of a thyroid surgery stent in example 1, in which two first retractor assemblies are separated from other components.

Fig. 2 is a schematic structural view of a thyroid surgery support in example 1, in which two first retractor assemblies are not installed, and a square rail is separated from other parts.

Fig. 3 is a schematic view of the square rail, the trunnion joint seat, and the second knob of fig. 2 being separated from other components.

Fig. 4 is a schematic structural view of the rail clip.

Fig. 5 is a schematic view of the first retractor assembly of embodiment 1.

Fig. 6 is a partially exploded view of fig. 5.

Fig. 7 is a schematic view of the clamp lifter when the lower jaw is fully closed.

Fig. 8 is an exploded view of fig. 7.

Fig. 9 is a schematic structural view of the clamping lifter without the guide sleeve and the worm gear seat when the lower jaw is completely closed.

Fig. 10 is a schematic view of the overall structure of the second retractor assembly.

Fig. 11 is an exploded view of fig. 10.

Fig. 12 is a schematic view of the second retractor assembly without the second telescoping sleeve.

Figure 13 is a cross-sectional view of the second retractor assembly.

<xnotran> , 1, 1-1, 1-11, 1-12, 1-13, 1-14, 1-15, 1-16, U 1-14-1, 1-15-1, 1-14-2, 1-12-1, 1-12-2, 1-12-3, 1-12-5, 16-1-1, 16-1-2, 16-1-3, 16-1-4, 16-1-5, 16-1-6, 16-1-7, 2, 2-1, 2-2, v 2-3, 2-4, 2-5, 2-51, 2-52, 2-53, 2-54, 2-55, 2-56, 2-6, 2-7, 2-8, 2-9, 2-10, 3, L 3-1, 3-2, 3-3, 3-4, 3-5, 3-4-1, </xnotran> 3-4-2 parts of a hinged rod, 3-4-3 parts of a press hook, 3-4-4 parts of a triangular clamping opening, 3-4-5 parts of a first rotating shaft, 3-4-6 parts of a second rotating shaft, 3-4-7 parts of an arc surface, 4 parts of a guide sleeve, 5 parts of a first bearing, 6 parts of a square rail, 7 parts of an operating wrench, 1-1-1 parts of a second drag hook component, 1-111 parts of a ball head telescopic component, 1-112 parts of a ball head screw sleeve, 1-113 parts of a damping sleeve, 1-114 parts of a third knob, 1-115 parts of a damping component, 1-12-11 parts of a telescopic sleeve, 1-12-21 parts of a telescopic rod body, 1-12-31 parts of a telescopic knob, 1-12-111 parts of an external thread part, 1-12-112 parts of a ball head sleeve, 1-12-211 parts of a positioning column, 1-18 parts of a limiting through hole, 1-19 parts of a positioning bead and 1-20 parts of a trapezoidal table.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is to be understood that the embodiments described are merely exemplary embodiments, rather than exemplary embodiments, and that all other embodiments may be devised by those skilled in the art without departing from the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to figures 1-13 of the drawings,

example 1: a thyroid surgery stent comprising the following components:

a hook drawing device 1 for fixing the skin near the thyroid gland to expose the thyroid gland;

a track component 3 for supporting and fixing the retractor 1;

the clamping lifter 2 is used for clamping on an operating table and supporting and lifting the rail assembly 3, wherein the rail assembly 3 is connected between the clamping lifter 2 and the retractor 1, and the retractor 1 can move along the rail assembly 3.

According to the invention, the hook device 1 for fixing the skin near the thyroid gland to expose the thyroid gland is additionally arranged, and meanwhile, the lower part of the hook device 1 is fixed on an operating table through the clamping lifter 2, compared with the prior art that the incision is opened by directly adopting the stay bar, the invention has the advantage that the height of the hook device 1 is adjusted according to the requirement, meanwhile, the hook device 1 is connected with the hook device 1 through the track component 3, so that the hook device 1 moves along the track component 3, and the angle of the hook device 1 can be further adjusted.

In order to quickly and conveniently adjust the angles of the two pull hook pieces 1-11 and simultaneously ensure that the pull hook device 1 can move along a track on the track component 3, the pull hook device 1 comprises two first pull hook components 1-1 which are bilaterally symmetrical, each first pull hook component 1-1 comprises one pull hook piece 1-11, a ball head telescopic component 1-12, a ball head screw sleeve 1-13, a damping sleeve 1-14 and a fourth knob 1-15, one end of the damping sleeve 1-14 is connected with one end of the ball head telescopic component 1-12, the other end of the ball head telescopic component 1-12 is connected with a hinge unit 1-16, the hinge unit 1-16 is connected with the draw hook piece 1-11 ball, a first U-shaped clamping groove 1-14-1 for movably clamping the track assembly 3 is arranged on the damping sleeve 1-14, the fourth knob 1-15 is positioned on the side edge of the damping sleeve 1-14, the side edge of the ball head screw sleeve 1-13 is in threaded connection with the fourth knob 1-15, the fourth knob 1-15 is provided with a first limit column 1-15-1 clamped with the damping sleeve 1-14, the damping sleeve 1-14 is movably inserted in the ball head screw sleeve 1-13, and the side edge of the damping sleeve 1-14 is provided with a clamping groove 1-14-2 matched with the first limit column 1-15-1.

In the structure, the first U-shaped clamping groove 1-14-1 is arranged on the damping sleeve 1-14, the first U-shaped clamping groove 1-14-1 is clamped on the square rail 6 on the upper portion, namely the lower portion, of the rail assembly 3, the caliber of the first U-shaped clamping groove 1-14-1 is matched with the diameter of the square rail 6, the first U-shaped clamping groove 1-14-1 is guaranteed to move or rotate along the shape of the square rail 6, the angle and the position of the two pull hook pieces 1-11 can be adjusted finally, in addition, the fourth knob 1-15 is arranged on the side edge of the damping sleeve 1-14, the fourth knob 1-15 rotates to drive the first limiting column 1-15-1 to rotate to guarantee that the head of the first limiting column 1-15-1 moves radially, the opening of the first U-shaped clamping groove 1-14-1 is enlarged or reduced in the moving process, the square rail 6 is removed or installed finally, the pull hook pieces 1-11 are clamped on the corresponding positions of the square rail 6, the pull hook can be further adjusted to reach the position of a thyroid gland through a simple operation mode, and the thyroid gland can be locked, and the thyroid gland can be used by a simple operation mode, and the pull hook can be used for realizing that the thyroid gland can be adjusted, and the thyroid gland can be used more suitable for people, and the thyroid gland.

Preferably, the second drag hook assembly 1-1-1 comprises a drag hook sheet 1-11, a ball head telescopic assembly two 1-111, a ball head thread sleeve two 1-112, a damping sleeve two 1-113 and a third knob 1-114, one end of the drag hook sheet 1-11 is ball-jointed with one end of the ball head telescopic assembly two 1-111, the other end of the ball head telescopic assembly two 1-111 is ball-jointed with the damping sleeve two 1-113, a first U-shaped clamping groove 1-14-1 matched with a first limiting column 1-15-1 is arranged on the damping sleeve two 1-113, a damping piece 1-115 is inserted into the side of the first U-shaped clamping groove 1-14-1, the damping piece 1-115 is connected with the end of the third knob 1-114 in a buckling manner, a ball head thread sleeve two 1-112 is sleeved on two sides of the damping sleeve two 1-113, the ball head thread sleeve two 1-112 is screwed with the third knob 1-114 on one side, the thread part of the ball head thread sleeve two 1-112 is sleeved with the ball head telescopic assembly 1-12, the telescopic assembly 1-12 is arranged on the side of the telescopic assembly 1-12, the telescopic rod body 1-12, the telescopic assembly 1-12 is also arranged on the telescopic rod body 1-12, a ball head rotatably connected with a ball head screw sleeve II 1-112 is fixed at one end of a telescopic sleeve II 1-12-11, a positioning column 1-12-211 inserted into the telescopic sleeve II 1-12-11 is arranged at the other end of the telescopic rod body II 1-12-21, a spring 1-12-113 and a clamping seat II 1-12-114 are sleeved outside the telescopic rod body II 1-12-21, one end of the spring 1-12-113 is abutted against the clamping seat II 1-12-114, the other end of the spring 1-12-114 is abutted against the clamping seat II 1-12-114, a telescopic knob II 1-12-31 is sleeved outside the spring 1-12-113 and the clamping seat II 1-12-114, more than one limiting through hole 1-18 is annularly arranged on the clamping seat II 1-12-114, a positioning bead 1-19 partially exposed out of the limiting through hole 1-18 is movably inserted in the limiting through hole 1-18, a trapezoidal table 1-12-11 is arranged in the telescopic sleeve II, the trapezoidal table 1-12-11, the positioning bead 1-20 can press the positioning bead II 1-19 of the telescopic table 1-12 to the telescopic table 1-12 and drive the telescopic table to rotate slowly towards the waist part of the telescopic table 1-12, and the telescopic table after the telescopic table 1-12 is rotated, after the positioning beads 1-19 are pushed to move towards the second telescopic rod body 1-12-21, the second telescopic rod body 1-12-21 is held tightly, at the moment, the second telescopic rod body 1-12-21 cannot be pulled outwards, when the second telescopic sleeve 1-12-11 is rotated in the opposite direction, the positioning beads 1-19 are separated from the second telescopic rod body 1-12-21 along with the gradual distance between the waists of the trapezoid table 1-20 and the positioning beads 1-20 are gradually increased, and at the moment, the second telescopic rod body 1-12-21 can be pulled outwards to adjust the length of the pull hook piece 1-11.

During the operation, at the in-process of rotatory flexible knob two, can guarantee that the mouth of clamp on the holder two is in the state of unclamping with the flexible body of rod two, at this moment flexible body of rod two can be along two horizontal migration of flexible cover, finally adjust the horizontal position to the hook piece, with this interval between two hook pieces of change, when adjusting suitable position, through reverse rotation flexible knob two, slowly diminish the mouth of clamp on the holder two under the effect of flexible knob two and finally press from both sides the tight process with flexible body of rod two, guarantee that flexible body of rod two is in fixed state, consequently can conveniently adjust the interval between two hook pieces as required fast through this structural setting, make it can strut near thyroid gland skin to suitable size, further make things convenient for doctor's operation, similar rotary-type structure of the clothes hanger on the market at present, the form that the pull rod can stretch out and draw back when rotatory middle knob.

Preferably, the ball head telescopic assembly 1-12 comprises a telescopic sleeve 1-12-1, a telescopic rod body 1-12-2 and a telescopic knob 1-12-3, one end of the telescopic sleeve 1-12-1 is provided with a holder 1-12-4, one end of the telescopic rod body 1-12-2 is connected with a pull hook sheet 1-11, the other end of the telescopic rod body 1-12-2 is movably inserted into the holder 1-12-4, the telescopic knob 1-12-3 is in threaded connection with the telescopic sleeve 1-12-1, and the telescopic rod body 1-12-2 can be locked in the telescopic sleeve 1-12-1 after the telescopic sleeve 1-12-1 rotates.

Through the structure setting, the flexible subassembly of bulb one owing to include flexible cover one, flexible body of rod one and flexible knob one, during the operation, at the in-process of rotatory flexible knob one, can guarantee that the nip on the holder one is in the state of unclamping with flexible body of rod one, at this moment flexible body of rod one can be along a flexible cover horizontal migration, finally adjust the horizontal position to the hook piece, with this interval between two hook pieces that changes, when adjusting suitable position, through the flexible knob one of opposite direction rotation, the nip on the holder one slowly diminishes finally with the process that flexible body of rod one presss from both sides tightly under the effect of flexible knob one, guarantee flexible body of rod one and be in fixed state, consequently can adjust the interval between two hook pieces as required through this structure setting fast conveniently, make it can strut suitable size with near thyroid gland skin, further make things convenient for doctor's operation.

Preferably, the other end of the first telescopic rod body 1-12-2 is provided with a first ball head 1-12-5, the hinge unit 1-16 comprises a first circular tube 16-1-1 and a second circular tube 16-1-2, one end of the first circular tube 16-1-1 is provided with a first ball head seat 16-1-3, the first ball head 1-12-5 is inserted into the first ball head seat 16-1-3, the other end of the first circular tube 16-1-1 is fixedly provided with a second ball head 16-1-4, one end of the second circular tube 16-1-2 is provided with a third ball head 16-1-5, the third ball head 16-1-5 and the second ball head 16-1-4 are inserted with a ball connecting rod 16-1-6, the side edge of the ball connecting rod 16-1-6 is in threaded connection with a ball head 16-1-7 of a locking knob, and the other end of the second circular tube 16-1-2 is in ball joint with the pull hook sheet 1-11.

Preferably, when the device clamps, a surface-to-surface contact mode is adopted for clamping, the clamping stability is further improved, the clamping lifter 2 comprises a main board 2-1, a locking pressing plate 2-2, a v-shaped locking bent arm 2-3, a locking screw 2-4 and a lifting assembly 2-5, the surface-to-surface matching of one surface of the main board 2-1 and one surface of the locking pressing plate 2-2 is realized, a clamping opening 2-6 used for clamping on an operating table is formed, the lifting assembly 2-5 is located on the main board 2-1, one end of the v-shaped locking bent arm 2-3 is hinged to the main board 2-1, the other end of the v-shaped locking bent arm 2-3 is hinged to the locking pressing plate 2-2, a rotating pin 2-7 is hinged to the center of the v-shaped locking bent arm 2-3, the rotating pin 2-7 is in threaded connection with the locking screw 2-4, one end of the locking screw 2-4 is fixedly provided with a connecting pin 2-8, the connecting pin 2-8 is rotatably connected to the main board 2-1, the other end of the rotating pin 2-4 is rotatably connected to a handle, and the rotating pin 2-4 is connected to drive the locking bent arm 2-6, and the rotating handle is connected with the rotating pin 9, and the rotating pin to drive the locking bent arm 2-4 to drive the rotating handle to drive the rotating pin to drive the locking bent arm 2-2.

In the prior art, a bolt is generally fixed with a side support of an operating table, the bolt is screwed or unscrewed to ensure that the bolt is tightly pressed with the side support of the operating table in the screwing process, so that the bolt is clamped in a point-to-surface contact manner, the structure is provided with a manner of realizing surface-to-surface clamping, the clamping effect is further improved, during operation, two planes of the locking pressing plate 2-2 and the main plate 2-1 are respectively positioned at two sides of the side support of the operating table to form two clamping surfaces, then the operating handle 2-9 is shaken to drive the locking screw 2-4 to rotate, the locking screw 2-4 drives the connecting pin 2-8 to rotate on the main plate 2-1 and simultaneously drive the rotating pin 2-7 of the v-shaped locking bent arm 2-3 to rotate, at the moment, one end of the v-shaped locking bent arm 2-3 rotates on the main plate 2-1, the other end drives the locking pressing plate 2-2 to rotate, finally, the distance between the locking pressing plate 2-2 and the main plate 2-1 is ensured to be gradually close to the side support, and the whole clamping surface is ensured to be more stably clamped.

Preferably, in order to ensure that the operation is more convenient, the lifting assembly 2-5 comprises a worm wheel 2-51, a worm 2-52, a screw rod 2-53 and a telescopic sleeve 2-54, the telescopic sleeve 2-54 is fixed on a screw rod seat of the screw rod 2-53, the lower part of the screw rod 2-53 is fixed on the worm wheel 2-51, the worm wheel 2-51 is meshed with the worm 2-52, and a first knob 2-55 for driving the worm 2-52 to rotate is arranged on the side edge of the worm 2-52.

In the above structure: in order to facilitate fixing, two ends of the worm 2-52 are fixed on a worm wheel and worm seat 2-56 through end covers 2-57, and meanwhile, in order to ensure that the worm 2-52 can rotate smoothly, a second bearing 2-10 sleeved outside a rod body of the worm 2-52 is arranged inside each end cover 2-57, the second bearing 2-10 is additionally arranged, so that the worm 2-52 can be fixed conveniently, the end covers 2-57 cannot be influenced and a supporting effect can be started when the worm 2-52 rotates, and meanwhile, the worm wheel and worm seat 2-56 is arranged to facilitate fixing of the worm wheel 2-51 and the worm 2-52; by additionally arranging the guide sleeve 4, the first telescopic sleeve 2-54 is ensured to play a role of guiding when moving up and down, and the first telescopic sleeve 2-54 always moves up and down along the guide sleeve 4 without deflection, so that the stability of moving up and down can be ensured finally; the first bearing 5 can support the screw rod 2-53 and the turbine 2-51, and meanwhile, the turbine is prevented from being rubbed with the turbine worm seat 2-56 to damage the turbine worm seat 2-56 when the turbine rotates.

Preferably, the rail assembly 3 comprises two L-shaped rail elbows 3-1 and a square rail 6 which are bilaterally symmetrical, a supporting rod 3-5 is connected between one ends of the two L-shaped rail elbows 3-1, the supporting rod 3-5 is movably sleeved on a supporting rod joint seat 3-2, the lower end of the supporting rod joint seat 3-2 is fixedly connected with the upper end of a telescopic sleeve 2-54, a rail clamp 3-4 is fixed at the other end of the L-shaped rail elbow 3-1, a second clamping groove 3-4-1 for clamping the square rail 6 is arranged on each rail clamp 3-4, the square rail 6 can horizontally move along the second clamping groove 3-4-1, and two ends of the square rail 6 are clamped in the second clamping grooves 3-4-1 respectively. In the structure, the bore of the second clamping groove is matched with the diameter of the square rail, the square rail can be clamped in the second clamping groove and cannot fall off, the square rail can be moved along the second clamping groove, the position of the square rail can be changed, and the square rail can be rapidly detached in the later stage.

Preferably, in order to further facilitate the operation, a second knob 3-3 is arranged on the support rod joint seat 3-2, a second screw 3-3-1 in threaded connection with the support rod joint seat 3-2 is arranged on the second knob 3-3, and the end of the second screw 3-3-1 is arranged in the support rod joint seat 3-2 and used for clamping the support rod 3-5 in the support rod joint seat 3-2 when the end can abut against the support rod 3-5.

In the structure, the second knob 3-3 is arranged to drive the second screw rod 3-3-1 on the second knob 3-3 to rotate on the track clamp to extend into and out to clamp or loosen the support rod, and when the support rod is loosened with the second screw rod, the support rod can rotate in the track clamp, so that the rotation angle of the square track can be further adjusted according to requirements. In the structure, the second knob 3-3 is arranged to drive the second screw rod 3-3-1 on the second knob 3-3 to rotate on the track clamp 3-4 to extend and retract so as to clamp or release the support rod 3-5, and when the support rod 3-5 and the second screw rod 3-3-1 are released, the support rod 3-5 can rotate in the track clamp 3-4, so that the rotation angle of the square track 6 can be further adjusted according to requirements.

Preferably, the lower portion of the track clamp 3-4 is sleeved outside the L-shaped track bent pipe 3-1, a hinged rod 3-4-2 is hinged to the upper portion of the track clamp 3-4 through a first rotating shaft 3-4-5 and is located outside the track clamp 3-4, a pressing hook 3-4-3 is hinged to the center of the hinged rod 3-4-2 through a second rotating shaft 3-4-6, an arc surface 3-4-7 abutting against the side edge of the track clamp 3-4 is arranged on the pressing hook 3-4-3, a lower opening of the pressing hook 3-4-3 is matched with a triangular clamp opening 3-4-4 on the track clamp 3-4 to form the second clamping groove 3-4-1, and an operating wrench 7 is arranged on the side edge of the hinged rod 3-4-2. Through the structural arrangement, when the operation wrench 7 is pressed downwards, the hinge rod 3-4-2 is driven to rotate downwards, the press hook 3-4-3 is guaranteed to be lifted up from the lower opening of the press hook 3-4-3 under the action of the side arc surface 3-4-7, the opening of the second clamping groove 3-4-1 is enlarged, when the operation wrench 7 is lifted upwards, the hinge rod 3-4-2 is driven to rotate upwards, and the press hook 3-4-3 is guaranteed to be pressed downwards from the lower opening of the press hook 3-4-3 under the action of the side arc surface 3-4-7, so that the square rail 6 is finally pressed in the second clamping groove 3-4-1, and therefore the square rail 6 is convenient to disassemble in the later period through the structural arrangement.

Preferably, in order to ensure that the operation is more convenient when the retractor 1 is lifted, the lifting assembly 2-5 of the retractor 1 comprises a turbine 2-51, a worm 2-52, a screw rod 2-53 and a telescopic sleeve 2-54, the telescopic sleeve 2-54 is fixed on a screw rod seat of the screw rod 2-53, the lower part of the screw rod 2-53 is fixed on the turbine 2-51, the turbine 2-51 is meshed with the worm 2-52, and a first knob 2-55 for driving the worm 2-52 to rotate is arranged on the side edge of the worm 2-52.

Through the structural arrangement, the first knob 2-55 is driven to rotate, the first knob 2-55 drives the worm 2-52 to rotate, the worm wheel 2-51 on the side edge is synchronously driven to rotate, the lead screw 2-53 above is finally driven to rotate, the lead screw rotates to synchronously drive the lead screw seat to move up and down, and the telescopic sleeve 2-54 fixedly connected with the lead screw seat is finally driven to move up and down to adjust the height of the manual clamp assembly 1, so that the height of the track assembly 3 is adjusted by converting the matching rotation work of the worm wheel and the worm into the linear motion of the manual clamp assembly 1 in a vertical reciprocating mode, and the hook device 1 is fixed on the track assembly 3, so that the hook device 1 can also synchronously adjust the height along with the track assembly 3, and the whole structure is similar to a jack height adjusting mode, and compared with the existing mode that a cylinder is adopted to drive, the whole cost is lower, and the stability is better.

Preferably, the lifting assembly 2-5 further comprises a turbine worm seat 2-56, the turbine 2-51 and the worm 2-52 are located in the turbine worm seat 2-56, the turbine worm seat 2-56 is fixedly connected with the main board 2-1, two ends of the worm 2-52 are fixed on the turbine worm seat 2-56 through an end cover 2-57, one end of the worm 2-52 extends out of the turbine worm seat 2-56 and is fixedly connected with the first knob 2-55, a guide sleeve 4 is integrally formed above the turbine worm seat 2-56, the upper part of the screw rod 2-53 is located in the guide sleeve 4, the telescopic sleeve 2-54 is movably inserted in the guide sleeve 4, a first bearing 5 is connected to each of the upper part and the lower part of the turbine 2-51, the first bearing 5 is sleeved outside the screw rod 2-53, the outer wall of the first bearing 5 is matched with the inner wall of the turbine worm seat 2-56, and the lower part of the guide sleeve 4 is connected with the turbine worm seat 2-56 through a positioning pin 8 fixed on the turbine worm seat 2-56.

In the embodiment, for convenience of fixation, two ends of the worm 2-52 are fixed on the worm wheel and worm seat 2-56 through the end covers 2-57, and meanwhile, in order to ensure that the worm 2-52 can rotate smoothly, a second bearing 2-10 sleeved outside the rod body of the worm 2-52 is arranged inside each end cover 2-57, and by additionally arranging the second bearing 2-10, the worm 2-52 can be fixed conveniently, meanwhile, the end covers 2-57 can be ensured not to be influenced and the supporting function can be started when the worm 2-52 rotates, and meanwhile, the worm wheel and worm seat 2-56 is arranged to facilitate fixation of the worm wheel 2-51 and the worm 2-52.

Preferably, the safety is improved, the situation that the patient is cut due to the fact that the hook pulling piece is too sharp is avoided, the hook pulling piece 1-11 is of an arc-shaped structure, and the hook pulling piece 1-11 is arranged to be of an arc-shaped structure, so that the whole surface of the hook pulling piece has a certain radian, and the skin of the patient cannot be cut due to the fact that the surface of the hook pulling piece 1-11 is too sharp.

The overall working principle of the invention is as follows:

firstly, installing, namely respectively positioning two planes of a locking pressure plate 2-2 and a main board 2-1 at two sides of a side support of an operating table to form two clamping surfaces, then shaking an operating handle 2-9, rotating the operating handle 2-9 to drive a locking screw 2-4 to rotate, driving a connecting pin 2-8 to rotate on the main board 2-1 by the locking screw 2-4 and driving a rotating pin 2-7 of a v-shaped locking bent arm 2-3 to rotate, wherein one end of the v-shaped locking bent arm 2-3 rotates on the main board 2-1, and the other end drives the locking pressure plate 2-2 to rotate, finally ensuring that the distance between the locking pressure plate 2-2 and the main board 2-1 is gradually reduced, ensuring that the two clamping surfaces are close to each other, and finally ensuring that the clamping surfaces are in closer contact with the side support of the operating table until the clamping positions are reached; then adjusting the distance between the two pull hook pieces 1-11 according to requirements, fixing and opening the skin near the thyroid gland by the two pull hook pieces 1-11 to expose the thyroid gland, rotating the first telescopic knob 1-12-3 until the clamping opening on the first holder 1-12-4 and the first telescopic rod 1-12-2 are in a loosened state, then horizontally moving the first telescopic rod 1-12-2 along the first telescopic sleeve 1-12-1 to finally adjust the horizontal position of the first telescopic hook piece 1-11, so as to change the distance between the two pull hook pieces 1-11, when the first telescopic knob 1-12-3 is adjusted to a proper position, slowly clamping the first telescopic rod 1-12-2 by the clamping opening on the first holder 1-12-4 under the action of the first telescopic knob 1-12-3 by rotating the first telescopic knob 1-12-3 in the opposite direction to ensure that the first telescopic rod 1-12-2 is in a fixed state, so that a doctor can conveniently drive a fourth telescopic knob 1-15 to quickly adjust the distance between the first telescopic hook piece 1-12-4 according to requirements to further drive the first telescopic hook piece 1-12-2 to rotate the first telescopic hook piece to open the first telescopic hook piece to ensure that the first telescopic rod 1-12-2 and the first telescopic rod 1-15 is in a fourth telescopic rod to be convenient to further to operate the first, and the fourth pull column to further to open the first telescopic rod 15 to ensure that the first telescopic rod 1-15 to keep the first telescopic rod 1-15 in a fourth telescopic rod 1-12-15, the opening of the first U-shaped clamping groove 1-14-1 is enlarged or reduced in the moving process, the square rail 6 is finally taken down or mounted, the drag hook sheet 1-11 is tied on the position corresponding to the square rail 6 in such a way, meanwhile, the drag hook sheet 1-11 is held by hands to rotate up and down and left and right, a damping piece is arranged in the ball joint part in order to ensure the friction force in the later period, the ball head and the damping piece are in damping connection in the rotating process, when the drag hook sheet 1-11 is held by hands to swing to any position, the ball head and the damping piece generate the friction force, the whole structure is finally ensured to be fixed on the corresponding position adjusted by a doctor, and the adjusting and fixing effects of the inclination angle of the drag hook sheet 1-11 are further realized;

finally, the height of the hook piece 1-11 is adjusted according to requirements, the first knob 2-55 is driven to rotate, the first knob 2-55 drives the worm 2-52 to rotate, the worm wheel 2-51 on the side edge is synchronously driven to rotate, the lead screw 2-53 on the upper side is finally driven to rotate, the lead screw rotates to synchronously drive the lead screw seat to move up and down, and the telescopic sleeve 2-54 fixedly connected with the lead screw seat is finally driven to move up and down to adjust the height of the manual clamp assembly 1.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A thyroid surgery stent comprising the following components:

the retractor (1) is used for fixing the skin near the thyroid gland to expose the thyroid gland;

a track component (3) for supporting and fixing the hook drawing device (1);

the clamping device is used for clamping on an operating table and supporting and lifting the clamping lifter (2) of the rail assembly (3), wherein the rail assembly (3) is connected between the clamping lifter (2) and the retractor (1), and the retractor (1) can move along the rail assembly (3).

2. The thyroid surgery stent of claim 1, wherein: the draw hook device (1) comprises a first draw hook component (1-1) and a second draw hook component (1-1-1) which are bilaterally symmetrical, the first draw hook component (1-1) comprises a draw hook sheet (1-11), a ball head telescopic component (1-12), a ball head thread sleeve (1-13), a damping sleeve (1-14) and a fourth knob (1-15), one end of the damping sleeve (1-14) is connected with one end of the ball head telescopic component (1-12), the other end of the ball head telescopic component (1-12) is connected with a hinge unit (1-16), the hinge unit (1-16) is in ball joint with the draw hook sheet (1-11), a first U-shaped clamping groove (1-14-1) for movably clamping a track component (3) is arranged on the damping sleeve (1-14), the fourth knob (1-15) is arranged on the side edge of the damping sleeve (1-14), the first U-shaped clamping groove (1-14-1) for movably clamping the track component (3) is arranged on the side edge of the damping sleeve (1-13), the damping sleeve (1-15) is connected with the first damping sleeve (1-14) in a clamping connection way, the damping sleeve (1-15) and the damping sleeve (1-15) is arranged on the damping sleeve (1-14), and the side edge of the first damping sleeve (1-14) is provided with a clamping groove (1-14-2) matched with the first limiting column (1-15-1).

3. A thyroid surgery stent according to claim 1, wherein: the second drag hook assembly (1-1-1) comprises a drag hook sheet (1-11), a second ball head telescopic assembly (1-111), a second ball head screw sleeve (1-112), a second damping sleeve (1-113) and a third knob (1-114), one end of the drag hook sheet (1-11) is in ball joint with one end of the second ball head telescopic assembly (1-111), the other end of the second ball head telescopic assembly (1-111) is in ball joint with the second damping sleeve (1-113), the second damping sleeve (1-113) is provided with a first U-shaped clamping groove (1-14-1) matched with a first limiting column (1-15-1), a damping piece (1-115) is inserted into the side edge of the first U-shaped clamping groove (1-14-1), the damping piece (1-115) is in snap joint with the end of the third knob (1-114), one side of the second ball head screw sleeve (1-112) is sleeved on two sides of the second damping sleeve (1-113), and one end of the second ball head screw sleeve (1-112) is connected with the second ball head telescopic assembly (1-111) and the other side of the second ball head telescopic assembly (1-113).

4. The thyroid surgery stent of claim 2, wherein: the first bulb telescopic assembly (1-12) comprises a first telescopic sleeve (1-12-1), a first telescopic rod body (1-12-2) and a first telescopic knob (1-12-3), one end of the first telescopic sleeve (1-12-1) is provided with a first holder (1-12-4), one end of the first telescopic rod body (1-12-2) is connected with a pull hook sheet (1-11), the other end of the first telescopic rod body (1-12-2) is movably inserted into the first holder (1-12-4), and the first telescopic knob (1-12-3) is in threaded connection with the first telescopic sleeve (1-12-1), the first telescopic sleeve (1-12-1) can lock the first telescopic rod body (1-12-2) in the first telescopic sleeve (1-12-1) after rotating, a first bulb (1-12-5) is arranged at the other end of the first telescopic rod body (1-12-2), the hinge unit (1-16) comprises a first circular tube (16-1-1) and a second circular tube (16-1-2), a first bulb seat (16-1-3) is arranged at one end of the first circular tube (16-1-1), and the first bulb (1-12-5) is inserted into the first bulb seat (16-1-1) In the step-3), a second ball head (16-1-4) is fixed to the other end of the first circular tube (16-1-1), a third ball head (16-1-5) is arranged at one end of the second circular tube (16-1-2), a ball connecting rod (16-1-6) is connected to the third ball head (16-1-5) and the second ball head (16-1-4) in an inserting mode, a ball head locking knob (16-1-7) is connected to the side edge of the ball connecting rod (16-1-6) in a threaded mode, and the other end of the second circular tube (16-1-2) is connected with a pull hook piece (1-11) in a ball mode.

5. A thyroid surgery stent according to claim 1, 2, 3 or 4 wherein: the clamping lifter (2) comprises a main board (2-1), a locking pressing plate (2-2), a v-shaped locking bent arm (2-3), a locking screw rod (2-4) and a lifting assembly (2-5), one surface of the main board (2-1) is matched with one surface of the locking pressing plate (2-2) in a surface-to-surface mode, a clamping opening (2-6) used for clamping on an operating table is formed, the lifting assembly (2-5) is located on the main board (2-1), one end of the v-shaped locking bent arm (2-3) is hinged to the main board (2-1), the other end of the v-shaped locking bent arm (2-3) is hinged to the locking pressing plate (2-2), a rotating pin (2-7) is hinged to the center of the v-shaped locking bent arm (2-3), the rotating pin (2-7) is in threaded connection with the locking screw rod (2-4), one end of the locking screw rod (2-4) is fixedly provided with a connecting pin (2-8), the connecting pin (2-8) is connected to a rotating handle (9-4) of the main board (2-4), and the rotating operating handle (9-4) is connected with the rotating screw rod (9-4), and the rotating pin (2-7) is driven to synchronously drive the V-shaped locking bent arm (2-3) to rotate so as to change the caliber of the clamping opening (2-6).

6. A thyroid operation support according to claim 5, wherein the lifting assembly (2-5) comprises a worm wheel (2-51), a worm (2-52), a screw rod (2-53) and a first telescopic sleeve (2-54), the first telescopic sleeve (2-54) is fixed on a screw rod seat of the screw rod (2-53), the lower part of the screw rod (2-53) is fixed on the worm wheel (2-51), the worm wheel (2-51) is meshed with the worm (2-52), and a first knob (2-55) for driving the worm (2-52) to rotate is arranged on the side of the worm (2-52).

7. The thyroid operation support according to claim 6, wherein the rail assembly (3) comprises two L-shaped rail bent pipes (3-1) and a square rail (6), the L-shaped rail bent pipes (3-1) are bilaterally symmetrical, a supporting rod (3-5) is connected between one ends of the two L-shaped rail bent pipes (3-1), the supporting rod (3-5) is movably sleeved on a supporting rod joint seat (3-2), the lower end of the supporting rod joint seat (3-2) is fixedly connected with the upper end of a first telescopic sleeve (2-54), a rail clamp (3-4) is fixed at the other end of each L-shaped rail bent pipe (3-1), a second clamping groove (3-4-1) for clamping the square rail (6) is arranged on each rail clamp (3-4), the square rail (6) can horizontally move along the second clamping groove (3-4-1), and two ends of the square rail (6) are respectively clamped in the second clamping groove (3-4-1).

8. The thyroid surgery bracket according to claim 7, wherein the second knob (3-3) is arranged on the connecting seat (3-2) of the supporting rod, the second knob (3-3) is provided with a second screw (3-3-1) in threaded connection with the connecting seat (3-2) of the supporting rod, the end of the second screw (3-3-1) is arranged in the connecting seat (3-2) of the supporting rod and can be abutted against the supporting rod (3-5) for clamping the supporting rod (3-5) in the connecting seat (3-2) of the supporting rod, the lower part of the track clamp (3-4) is sleeved outside the L-shaped track elbow (3-1), the upper portion of the track clamp (3-4) is provided with a hinged rod (3-4-2) which is positioned outside the track clamp (3-4) through a first rotating shaft (3-4-5) hinged portion, the center of the hinged rod (3-4-2) is hinged with a press hook (3-4-3) through a second rotating shaft (3-4-6), an arc surface (3-4-7) which is abutted to the side edge of the track clamp (3-4) is arranged on the press hook (3-4-3), and a lower opening of the press hook (3-4-3) is matched with a triangular clamp opening (3-4-4) on the track clamp (3-4) to form the second clamping groove (3-4-1), and an operating wrench (7) is arranged on the side edge of the hinged rod (3-4-2).

9. A thyroid surgery stent according to claim 8, wherein: the lifting assembly (2-5) also comprises a turbine worm seat (2-56), the turbine (2-51) and the worm (2-52) are positioned in the turbine worm seat (2-56), the turbine worm seat (2-56) is fixedly connected with the main board (2-1), two ends of the worm (2-52) are fixed on the turbine worm seat (2-56) through an end cover (2-57), one end of the worm (2-52) extends out of the worm wheel and worm seat (2-56) and then is fixedly connected with the first knob (2-55), a guide sleeve (4) is integrally formed above the turbine worm seat (2-56), the upper part of the screw rod (2-53) is positioned in the guide sleeve (4), and the first telescopic sleeve (2-54) is movably inserted in the guide sleeve (4), the upper part and the lower part of the turbine (2-51) are both connected with a first bearing (5), the first bearing (5) is sleeved outside the screw rod (2-53), and the outer wall of the first bearing (5) is matched with the inner wall of the turbine worm seat (2-56), the lower part of the guide sleeve (4) is fixedly connected with the turbine worm seat (2-56) through four positioning pins (8).