CN114680961A - Operation support - Google Patents

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an operation bracket. The invention provides a surgical bracket, aiming at the problem that different instruments are required to be replaced continuously according to the specific surgical situation in the prior art, and great inconvenience is brought to a user, the surgical bracket comprises a bracket, the bracket comprises a first supporting piece and a second supporting piece which are connected in a rotating mode, one end of a locking nut penetrates through the first supporting piece and the second supporting piece, the locking nut can be pressed on the first supporting piece or the second supporting piece by rotating the locking nut, a drawing device and a fixing device are further arranged on the second supporting piece, and the drawing device and the fixing device are both connected with the second supporting piece in a detachable mode. The surgical bracket can be quickly and conveniently opened and stored through the locking nut, and a plurality of medical devices such as a traction device and a fixing device which can be increased or decreased at any time according to needs in the surgical process are arranged on the bracket, so that the flexible operation degree in the surgical process is improved.

Description

Operation support

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an operation bracket.

Background

At present, with the development of medical science and technology and the synchronous requirements of people on health and beauty, the surgical operation tends to be a minimally invasive operation more and more. Mammary gland diseases are common clinical diseases, but the skin tissue of the breast is soft and difficult to fix, so that other medical instruments are needed to be matched with and pull the skin tissue of the breast in the minimally invasive mammary gland operation process so as to perform operation. Because the support of different medical instrument assemblies is different, need constantly to change different instruments according to the particular case of operation for whole operation process expends time and energy more, and can influence the doctor of the main knife and concentrate on degree and operation quality.

For example, chinese utility model patent document discloses a mammary gland operation tractive support [ CN201821587384.1], it includes that clamping device leads spool box connecting wire fixed disk and inlays groove universal ball and mount, the spool box is connected with two and leads, it has clamping device to lead the end-to-end connection of acting as go-between, clamping device is the magnet that has strong magnetic force, the connecting wire is twined in the spool box, the connecting wire end is equipped with rings, the fixed disk bottom surface is equipped with the couple, the connecting wire hangs on the couple through rings, be connected with the fixed disk, the fixed disk top surface is equipped with inlays the groove, universal ball inlays in inlaying the groove, universal ball freely rotates in inlaying the groove, be equipped with the mount on the universal ball.

The utility model discloses a function with the skin tissue of tractive breast can provide enough big operating space for the doctor, nevertheless can't assemble the apparatus that is used for other operation operations simultaneously, so it still has the above-mentioned specific conditions according to the operation and need constantly change different apparatus for whole operation process expends time and energy more, and can influence the problem that the main sword doctor is absorbed in degree and operation quality.

Disclosure of Invention

The invention aims to solve the problems and provides a surgical bracket which can realize the simultaneous assembly and use of a plurality of surgical instruments and is convenient for surgical operation.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an operation support, includes the support, and the support is including rotating first support piece and the second support piece of connecting, and lock nut's one end is link up first support piece and second support piece, rotates lock nut and can make lock nut press establish to first support piece or second support piece on, still is equipped with tractive device and fixing device on the second support piece, and tractive device and fixing device all can dismantle with second support piece and be connected.

In the above-mentioned surgical stent, the first support member includes a first support rod and a rod joint, a connecting hole recessed inside the rod joint is provided at one end of the rod joint close to the first support rod, one end of the first support rod extends into the connecting hole, the second support member includes a second support rod, at least two clamping pieces are provided at one end of the rod joint close to the second support rod, the two clamping pieces are respectively located at two sides of the second support rod, one end of the lock nut penetrates through the clamping pieces and the second support rod, the lock nut can be pressed on the clamping pieces by rotating the lock nut, and the width L1 of the clamping pieces is greater than the width L2 of the second support rod.

In foretell operation support, draw-off device includes first jib of draw-off assembly body and at least one extrusion subassembly, and the draw-off assembly body can be dismantled with second support piece and be connected, and the one end of first jib is connected with the draw-off assembly body, and the other end is connected with the extrusion subassembly, and draw-off device still includes the installation arm, and the one end fixed connection of installation arm is provided with the centre gripping recess that the rule was arranged on the installation arm on the extrusion subassembly.

In foretell operation support, the tractive assembly body includes first hand wheel and first positioning channel, first positioning channel link up tractive assembly body both sides, first hand wheel rotates with the tractive assembly body to be connected and one section extends to in the first positioning channel, second support piece extends to in the first positioning channel one section, rotate first hand wheel and can make the one end of first hand wheel press and establish on second support piece side, the axial lead of first hand wheel is mutually perpendicular with second support piece side, the tractive assembly body still is equipped with first adjusting screw and first positioning through-hole, first positioning through-hole is inserted to the one end of first jib, it can make the one end of first adjusting screw press and establish on first jib to rotate first adjusting screw.

In foretell operation support, the extrusion subassembly includes the extrusion piece and link up the connect the through-hole of extrusion piece, and first jib is located the connect the through-hole, still is equipped with the regulation gap on the extrusion piece, and the border of extrusion piece is link up to the one end in regulation gap, and the other end and connect mutually with the connect the through-hole, and the rotation of second adjusting screw is connected on the extrusion piece, and the one end of second adjusting screw link up through the regulation gap and rotate the width that the second adjusting screw can make the regulation gap reduce.

In the above-mentioned operation support, the extrusion subassembly is equipped with two and parallel to each other, and two extrusion subassemblies are arranged along the axial lead direction of first jib in proper order, and the installation arm is arc, and the crooked opposite direction of two installation arms of connecting respectively on two extrusion subassemblies.

In the above surgical stent, the traction device includes a traction member that is matched with the clamping groove, the traction member includes an elastic pull rod and a metal hook head that is fixedly connected with one end of the elastic pull rod, the metal hook head includes at least one metal hook that can pull skin, the elastic pull rod is a silicone tube, and when the traction member is embedded in the clamping groove, the traction member and/or the clamping groove are elastically deformed.

In foretell operation support, fixing device is equipped with interconnect's second jib and fixed subassembly, still be equipped with fixed assembly body, fixed assembly body can be dismantled with second support piece and be connected, the one end of second jib is connected with fixed assembly body, the other end is connected with fixed subassembly, fixed subassembly is equipped with fixed staple bolt and rotates the activity staple bolt of being connected with fixed staple bolt, be equipped with the staple bolt spanner on the activity staple bolt, it makes when activity staple bolt and fixed staple bolt laminating to rotate activity staple bolt, staple bolt spanner joint is on fixed staple bolt.

In the operation support, a second hand wheel and a second positioning channel are arranged on the fixing assembly body, the second positioning channel penetrates through two sides of the traction assembly body, the second hand wheel is rotatably connected with the traction assembly body, one section of the second hand wheel extends into the second positioning channel, one section of the second support piece extends into the second positioning channel, one end of the second hand wheel can be pressed on the side surface of the second support piece by rotating the second hand wheel, the axial lead of the second hand wheel is perpendicular to the side surface of the second support piece, a third adjusting screw rod and a second positioning through hole are further arranged on the fixing assembly body, one end of the second suspender is inserted into the second positioning through hole, and one end of the third adjusting screw rod can be pressed on the second suspender by rotating the third adjusting screw rod.

In the above-mentioned surgical stent, the fixing component is provided with a universal rod, one end of the universal rod, which is far away from the fixing component, is provided with a hoop ball head, the fixing component is further provided with a ball head seat, the ball head seat is provided with a fourth adjusting screw, one end of the fourth adjusting screw extends into the ball head seat, the hoop ball head and the ball head seat are adapted to rotate, and the fourth adjusting screw is twisted to enable one end of the fourth adjusting screw to be pressed on the hoop ball head.

Compared with the prior art, the invention has the advantages that:

1. the surgical bracket can be quickly and conveniently opened and stored through the locking nut, and a plurality of medical devices such as a traction device and a fixing device which can be increased or decreased at any time according to needs in the surgical process are arranged on the bracket, so that the flexible operation degree in the surgical process is improved.

2. The fixing component is provided with the universal rod, the hoop ball head and the ball head seat, and can rotate the fixing component to any direction at any time according to the operation requirement, so that the operation is ensured to be performed quickly and smoothly.

Drawings

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

FIG. 2 is an exploded view of the bracket;

FIG. 3 is an exploded view of the fixture;

FIG. 4 is an exploded view of the pulling device;

in the figure: the device comprises a support 1, a first support part 2, a second support part 3, a lock nut 4, a traction device 5, a fixing device 6, a rod joint 7, a connecting hole 8, a second support rod 9, a clamping piece 10, a traction assembly 11, a first suspender 12, an extrusion assembly 13, an installation arm 14, a clamping groove 15, a first hand wheel 16, a first positioning channel 17, a first adjusting screw 18, a first positioning through hole 19, an extrusion block 20, a connecting through hole 21, an adjusting gap 22, a second adjusting screw 23, a traction member 24, an elastic pull rod 25, a metal hook 26, a metal hook 27, a second suspender 28, a fixing assembly 29, a fixing assembly 30, a fixing hoop 31, a movable hoop 32, a hoop wrench 33, a second hand wheel 34, a second positioning channel 35, a third adjusting screw 36, a second positioning through hole 37, a universal rod 38, a hoop ball head 39, a ball head 40, a fourth adjusting screw 41, a head seat 7, a connecting hole 8, a second supporting rod 9, a clamping piece 10, a traction assembly 11, a first suspender 12, a second suspender components, a third adjusting screw 23, a second adjusting screw, a second clamping groove 24, a clamping groove, a clamping assembly, a clamping groove, a clamping assembly, a clamping groove, a clamping assembly, a clamping, The first support bar 42.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the present embodiment includes a bracket 1, a first support member 2 and a second support member 3 rotatably connected to each other, a lock nut 4, a pulling device 5 and a fixing device 6, wherein one end of the lock nut 4 sequentially penetrates through the first support member 2 and the second support member 3, the lock nut 4 can be pressed onto the first support member 2 or the second support member 3 by rotating the lock nut 4, and both the pulling device 5 and the fixing device 6 are detachably connected to the second support member 3.

In the invention, the bracket 1 comprises a first supporting part 2, a second supporting part 3 and a locking nut 4 which are rotatably connected, the first supporting part 2 and the second supporting part 3 are rotatably connected so that the bracket 1 can be folded and stored after use, the first supporting part 2 and the second supporting part 3 are rotated to required positions, the locking nut 4 is rotated to press the locking nut 4 onto the first supporting part 2 or the second supporting part 3, and at the moment, the first supporting part 2 and the second supporting part 3 are stably connected, so that a supporting force is provided for a surgical instrument used in a surgical process. In addition, the second support piece 3 is detachably connected with the traction device 5 and the fixing device 6, compared with the prior art, the medical device rack has the advantages that a plurality of medical devices can be arranged on the same rack at the same time, and the flexible operation degree in the operation process is improved.

Referring to fig. 1 and 2, the first support member 2 includes a first support rod 42 and a rod joint 7, a connection hole 8 recessed inside the rod joint 7 is formed in one end of the rod joint 7 close to the first support rod 42, one end of the first support rod 42 extends into the connection hole 8, the second support member 3 includes a second support rod 9, at least two clamping pieces 10 are arranged in one end of the rod joint 7 close to the second support rod 9, the two clamping pieces 10 are respectively located on two sides of the second support rod 3, one end of the lock nut 4 penetrates through the clamping pieces 10 and the second support rod 9, and the lock nut 4 can be rotated to press the lock nut 4 on the clamping pieces 10, so that the first support member 2 and the second support member 3 are stably connected. Preferably, the width L1 of the clamping flap 10 is greater than the width L2 of the second support bar 3. Thus, the locking nut 4 has a larger compression area when being compressed, and the pressure born by the instrument is smaller.

As shown in fig. 1 and 4, the pulling device 5 includes a pulling assembly 11, a first suspension rod 12 and at least one squeezing assembly 13, the pulling assembly 11 is detachably connected to the second support member 3, one end of the first suspension rod 12 is connected to the pulling assembly 11, and the other end is connected to the squeezing assembly 13, so that the pulling assembly 11 and the squeezing assembly 13 can be stably connected via the first suspension rod 12. The pulling device 5 further comprises a mounting arm 14, one end of the mounting arm 14 is fixedly connected to the squeezing assembly 13, and clamping grooves 15 which are regularly arranged are arranged on the mounting arm 14.

As shown in fig. 1 and 4, the pulling assembly body 11 includes a first hand wheel 16 and a first positioning channel 17, the first positioning channel 16 penetrates through two sides of the pulling assembly body 11, the first hand wheel 16 is rotatably connected with the pulling assembly body 11 and extends into the first positioning channel 17 in a section, the second supporting member 3 extends into the first positioning channel 17 in a section, and by rotating the first hand wheel 16, one end of the first hand wheel 16 is pressed on the side surface of the second supporting member 3, so that the pulling assembly body 11 and the second supporting member 3 are stably combined, and at this time, the axial line of the first hand wheel 16 is perpendicular to the side surface of the second supporting member 3; in addition, the pulling assembly body 11 is further provided with a first adjusting screw 18 and a first positioning through hole 19, one end of the first suspender 12 is inserted into the first positioning through hole 19, and the first adjusting screw 19 is rotated to enable one end of the first adjusting screw 19 to be pressed on the first suspender 12, so that the pulling assembly body 11 and the first suspender 12 are stably combined. In the embodiment, both axial and radial flexible movements of the traction device are provided with components which are convenient to operate and stable in guarantee, that is, stable connection or separation of the traction assembly body 11, the first suspender 12 and the second supporting member 3 can be quickly realized by twisting the first adjusting screw 18 and the first hand wheel 16, and the operation is promoted to be smoothly performed to the maximum extent.

Referring to fig. 1 and 4, the extrusion assembly 13 includes an extrusion block 20 and a connection through hole 21 penetrating through the extrusion block 20, the first suspender 12 is located in the connection through hole 21, an adjustment gap 22 is further disposed on the extrusion block 20, one end of the adjustment gap 22 penetrates through an edge of the extrusion block 20, the other end of the adjustment gap 22 is communicated with the connection through hole 21, a second adjustment screw 23 is rotatably connected to the extrusion block 20, and one end of the second adjustment screw 23 penetrates through the adjustment gap 22 and rotates the second adjustment screw 23 to reduce a width of the adjustment gap 22. During adjusting device, put first jib 12 in connect the via hole 21, rotate second adjusting screw 23 and can make the width of adjusting gap 22 reduce, first jib 12 is laminated gradually to extrusion piece 20, realizes the stable combination of extrusion subassembly 13 and first jib 12, and when needs adjustment axial height, the contrarotation second adjusting screw 23 can make extrusion subassembly 13 and first jib 12 separation fast, effectively adapts to the various circumstances in the operation process.

Preferably, two extrusion assemblies 13 are arranged and are parallel to each other, the two extrusion assemblies 13 are sequentially arranged along the axial lead direction of the first suspender 12, the mounting arms 14 are arc-shaped, the bending directions of the two mounting arms 14 respectively connected to the two extrusion assemblies 13 are opposite, and the mounting arms 14 form an approximately closed ring shape in a top view. In the operation process, the mounting arm 14 with the shape is matched with the shape of the breast, the number of the clamping grooves 15 required by the operation can be met, the operation view of a doctor is not obstructed due to the annular shape, and the operation is most effectively ensured.

Referring to fig. 1 and 4, the pulling device 5 includes a pulling member 24 engaged with the holding groove 15, the pulling member 24 includes an elastic pulling rod 25 and a metal hook 26 fixedly connected to one end of the elastic pulling rod 25, preferably, the metal hook 26 includes at least one metal hook 27 capable of pulling the skin, the elastic pulling rod 25 is a silicone tube, and when the pulling member 24 is embedded in the holding groove 15, the pulling member 24 and/or the holding groove 15 is elastically deformed. When the operation, make tractive spare 24 gomphosis in centre gripping recess 15, at least one emergence elastic deformation of tractive spare 24 and centre gripping recess 15 this moment, tractive spare 24 stable connection is on centre gripping recess 15, and according to the concrete demand of operation can follow the axial displacement tractive spare 24 of tractive spare 24 in order to adjust the tractive height, also can dismantle or install tractive spare 24 in order to increase and decrease quantity. Because the pulling piece 24 is made of elastic material, the elastic stretching of the skin of the patient is realized, and meanwhile, the installation is convenient. Therefore, the traction piece 24 is embedded in the clamping groove 5, the two are connected through the pressure generated by elastic deformation, the disassembly and the assembly and the position adjustment are convenient, the number of the traction pieces 24 can be increased or reduced and the height of a single traction piece 24 can be adjusted at any time according to needs in the operation process, and the operation flexibility degree in the operation process is improved. In addition, the number of the metal hooks 27 can be one or more, and the pulling element 24 with different numbers of metal hooks 27 can be selected according to the actual needs of the operation, thereby enlarging the applicable scene of the invention.

Referring to fig. 1 and 3, the fixing device 6 is provided with a second suspension rod 28 and a fixing component 29 which are connected to each other, and further provided with a fixing assembly 30, the fixing assembly 30 is detachably connected to the second support member 3, one end of the second suspension rod 28 is connected to the fixing assembly 30, and the other end is connected to the fixing component 29, so that the fixing assembly 30 and the fixing component 29 can be stably connected through the second suspension rod 28; fixed subassembly 29 is equipped with fixed staple bolt 31 and rotates the movable staple bolt 32 of being connected with fixed staple bolt 31, is equipped with staple bolt spanner 33 on the activity staple bolt, for example when needing to use fixed 29 of fixed subassembly laparoscopic surgery haplopore multichannel way to go into the device during the operation, rotates movable staple bolt 32 and makes movable staple bolt 32 and fixed staple bolt 31 laminate and hold haplopore multichannel way and go into the device tightly, and staple bolt spanner 33 joint is on fixed staple bolt 31 this moment, realizes that fixing device uses safely and stably. The specific structure of the single-hole multichannel access device can adopt the specific structure in the prior art, for example, the specific structure described in the patent application No. 201721219008.2.

Referring to fig. 1 and 3, a second hand wheel 34 and a second positioning channel 35 are arranged on the fixing assembly 30, the second positioning channel 35 penetrates through two sides of the pulling assembly 30, the second hand wheel 34 is rotatably connected with the pulling assembly 30, and a section of the second hand wheel extends into the second positioning channel 35, a section of the second support member 3 extends into the second positioning channel 35, and by rotating the second hand wheel 34, one end of the second hand wheel 34 is pressed on the side surface of the second support member 3, so that the fixing assembly 30 is stably combined with the second support member 3, and at this time, the axial line of the second hand wheel 34 is perpendicular to the side surface of the second support member 3; the fixing assembly 30 is further provided with a third adjusting screw 36 and a second positioning through hole 37, one end of the second suspender 28 is inserted into the second positioning through hole 37, and the third adjusting screw 36 is rotated to enable one end of the third adjusting screw 36 to be pressed on the second suspender 28, so that the fixing assembly 30 is stably combined with the second suspender 28. The present embodiment provides a component for the fixing device to move flexibly in both axial and radial directions, which is convenient for operation and ensures stability, that is, the stable connection or separation of the fixing assembly 30, the second suspension rod 28 and the second supporting member 3 can be quickly realized by twisting the third adjusting screw 36 and the second hand wheel 34, so as to maximally promote the smooth operation.

Referring to fig. 1 and 3, the fixing assembly 29 is provided with a universal rod 38, one end of the universal rod 38, which is far away from the fixing assembly 29, is provided with a hoop ball 39, the fixing assembly 29 is further provided with a ball seat 40, the ball seat 40 is provided with a fourth adjusting screw 41, one end of the fourth adjusting screw 41 extends into the ball seat 40, the hoop ball 39 and the ball seat 40 are adapted to rotate, and one end of the fourth adjusting screw 41 can be pressed on the hoop ball 39 by twisting the fourth adjusting screw 41. The fixing component 29 is provided with a ball seat 40 and a universal rod 38 with a hoop ball head 39, so that the universal rod 38 can rotate universally in the ball seat 40 according to specific surgical needs, meanwhile, one end of a fourth adjusting screw 41 extends into the ball seat 40, and the fourth adjusting screw 41 is twisted to enable one end of the fourth adjusting screw 41 to be pressed on the hoop ball head 39, so that the universal rod 38 in the current direction is fixed, and when the direction needs to be adjusted again, the universal rod 38 and the ball seat 40 can be adjusted quickly by reversely twisting the fourth adjusting screw 41.

The working principle of the invention is as follows: when the device is used, the first support member 2 and the second support member 3 are rotated to required positions, the lock nut 4 is rotated to enable the lock nut 4 to be pressed on the first support member 2 or the second support member 3, at the moment, the first support member 2 and the second support member 3 are stably connected, so that a supporting force is provided for surgical instruments used in a surgical process, namely, a supporting force is provided for the traction device 5 and the fixing device 6, then the traction device 5 is detachably connected to the second support member 3 through the traction assembly body 11, the traction assembly body 11 is stably connected or separated with the first suspender 12 and the second support member 3 through twisting the first adjusting screw 18 and the first hand wheel 16, further, the axial and radial flexible movement of the traction device 5 is realized, and the method for realizing the axial and radial flexible movement of the fixing device 6 is consistent with that of the traction device 5. The traction device is also provided with an extrusion assembly 13 and a mounting arm 14, the first suspender 12 is stably connected with the extrusion assembly 13 through a second adjusting screw 23 of the extrusion assembly 14, a clamping groove 15 on the mounting arm 14 is connected with a traction piece 24 through pressure generated by elastic deformation, and the traction piece 24 pulls the skin through a metal hook 27; the fixing device 6 is further provided with a ball head seat 40 and a fixing component 29, a fixing hoop 31 and a movable hoop 32 of the fixing component 29 are attached to fix the single-hole multi-channel access device, and a hoop ball head 39 of the fixing component 29 is in universal connection with the ball head seat 40 through a fourth adjusting screw 41. The surgical bracket can be quickly and conveniently opened and stored through the locking nut, and a plurality of medical devices such as a traction device and a fixing device which can be increased or decreased at any time according to needs in the surgical process are arranged on the bracket, so that the flexible operation degree in the surgical process is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the support 1, the first support member 2, the second support member 3, the lock nut 4, the drawing device 5, the fixing device 6, the rod joint 7, the connecting hole 8, the second support rod 9, the clamping piece 10, the drawing assembly 11, the first suspension rod 12, the extrusion assembly 13, the mounting arm 14, the clamping groove 15, the first hand wheel 16, the first positioning channel 17, the first adjusting screw 18, the first positioning through hole 19, the extrusion block 20, the connecting through hole 21, the adjusting gap 22, the second adjusting screw 23, the drawing member 24, the elastic pull rod 25, the metal hook head 26, the metal hook 27, the second suspension rod 28, the fixing assembly 29, the fixing assembly 30, the fixing hoop 31, the movable hoop 32, the hoop wrench 33, the second hand wheel 34, the second positioning channel 35, the third adjusting screw 36, the second positioning through hole 37, the universal rod 38, the hoop ball head 39, the ball head seat 40, the second support 3, the clamping piece 11, the rod joint 7, the connecting hole 8, the extrusion block 20, the connecting hole 21, the clamping piece 20, the second support rod 9, the clamping piece 10, the second adjusting screw 23, the clamping piece 23, the drawing member 24, the drawing member 24, the second clamping groove 24, the clamping groove 24, and the clamping groove 15, Fourth adjusting screw 41, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. The utility model provides an operation support, includes support (1), its characterized in that, support (1) is including rotating first support piece (2) and the second support piece (3) of connecting, and first support piece (2) and second support piece (3) are link up to the one end of lock nut (4), rotate lock nut (4) and can make lock nut (4) press to establish to first support piece (2) or second support piece (3) on, still be equipped with tractive device (5) and fixing device (6) on second support piece (3), tractive device (5) and fixing device (6) all can dismantle with second support piece (3) and be connected.

2. A surgical stent according to claim 1, wherein the first support (2) comprises a first support rod (42) and a rod joint (7), one end of the rod joint (7) close to the first supporting rod (42) is provided with a connecting hole (8) which is sunken towards the inside of the rod joint (7), one end of the first supporting rod (42) extends into the connecting hole (8), the second supporting piece (3) comprises a second supporting rod (9), one end of the rod joint (7) close to the second supporting rod (9) is provided with at least two clamping pieces (10), the two clamping pieces (10) are respectively positioned at two sides of the second supporting rod (9), one end of the locking nut (4) penetrates through the clamping piece (10) and the second supporting rod (9), the locking nut (4) can be pressed on the clamping piece (10) by rotating the locking nut (4), the width L1 of the clamping piece (10) is larger than the width L2 of the second supporting rod (9).

3. The surgical stent as claimed in claim 1, wherein the pulling device (5) comprises a pulling assembly body (11), a first suspender (12) and at least one pressing assembly (13), the pulling assembly body (11) is detachably connected with the second support member (3), one end of the first suspender (12) is connected with the pulling assembly body (11), the other end of the first suspender is connected with the pressing assembly (13), the pulling device (5) further comprises a mounting arm (14), one end of the mounting arm (14) is fixedly connected to the pressing assembly (13), and clamping grooves (15) which are regularly arranged are formed in the mounting arm (14).

4. The surgical bracket as claimed in claim 3, wherein the pulling assembly body (11) comprises a first hand wheel (16) and a first positioning channel (17), the first positioning channel (16) penetrates through two sides of the pulling assembly body (11), the first hand wheel (16) is rotatably connected with the pulling assembly body (11) and extends into the first positioning channel (17) in one section, the second support member (3) extends into the first positioning channel (17) in one section, the first hand wheel (16) is rotated to enable one end of the first hand wheel (16) to be pressed on the side surface of the second support member (3), the axial line of the first hand wheel (16) is perpendicular to the side surface of the second support member (3), the pulling assembly body (11) is further provided with a first adjusting screw rod (18) and a first positioning through hole (19), one end of the first suspension rod (12) is inserted into the first positioning through hole (19), one end of the first adjusting screw rod (19) can be pressed on the first suspender (12) by rotating the first adjusting screw rod (19).

5. The surgical bracket according to claim 3, wherein the extrusion assembly (13) comprises an extrusion block (20) and a connecting through hole (21) penetrating through the extrusion block (20), the first suspender (12) is located in the connecting through hole (21), an adjusting gap (22) is further arranged on the extrusion block (20), one end of the adjusting gap (22) penetrates through the edge of the extrusion block (20), the other end of the adjusting gap is communicated with the connecting through hole (21), a second adjusting screw (23) is rotatably connected to the extrusion block (20), one end of the second adjusting screw (23) penetrates through the adjusting gap (22), and the width of the adjusting gap (22) can be reduced by rotating the second adjusting screw (23).

6. The surgical stent according to claim 3, wherein the two squeezing assemblies (13) are parallel to each other, the two squeezing assemblies (13) are sequentially arranged along the axial line direction of the first suspender (12), the mounting arms (14) are arc-shaped, and the bending directions of the two mounting arms (14) respectively connected to the two squeezing assemblies (13) are opposite.

7. The surgical stent according to claim 3, wherein the pulling device (5) comprises a pulling member (24) matched with the clamping groove (15), the pulling member (24) comprises an elastic pull rod (25) and a metal hook head (26) fixedly connected with one end of the elastic pull rod (25), the metal hook head (26) comprises at least one metal hook (27) capable of pulling the skin, the elastic pull rod (25) is a silicone tube, and when the pulling member (24) is embedded in the clamping groove (15), the pulling member (24) and/or the clamping groove (15) are/is elastically deformed.

8. The surgical bracket according to claim 1, wherein the fixing device (6) is provided with a second suspender (28) and a fixing assembly (29) which are connected with each other, and a fixing assembly (30) is further provided, the fixing assembly (30) is detachably connected with the second support member (3), one end of the second suspender (28) is connected with the fixing assembly (30), the other end of the second suspender is connected with the fixing assembly (29), the fixing assembly (29) is provided with a fixing hoop (31) and a movable hoop (32) which is rotatably connected with the fixing hoop (31), the movable hoop is provided with a hoop wrench (33), and when the movable hoop (32) is rotated to enable the movable hoop (32) to be attached to the fixing hoop (31), the hoop wrench (33) is clamped on the fixing hoop (31).

9. The surgical stent as claimed in claim 8, wherein the fixing assembly (30) is provided with a second hand wheel (34) and a second positioning channel (35), the second positioning channel (35) penetrates through two sides of the pulling assembly (30), the second hand wheel (34) is rotatably connected with the pulling assembly (30) and extends into the second positioning channel (35) in one section, the second support member (3) extends into the second positioning channel (35) in one section, the second hand wheel (34) is rotated to enable one end of the second hand wheel (34) to be pressed on the side surface of the second support member (3), the axial line of the second hand wheel (34) is perpendicular to the side surface of the second support member (3), the fixing assembly (30) is further provided with a third adjusting screw (36) and a second positioning through hole (37), one end of the second suspender (28) is inserted into the second positioning through hole (37), the third adjusting screw rod (36) is rotated to enable one end of the third adjusting screw rod (36) to be pressed on the second suspender (28).

10. The surgical bracket according to claim 8, wherein the fixing assembly (29) is provided with a universal rod (38), one end of the universal rod (38) far away from the fixing assembly (29) is provided with a hoop ball head (39), the fixing assembly (29) is further provided with a ball head seat (40), the ball head seat (40) is provided with a fourth adjusting screw (41), one end of the fourth adjusting screw (41) extends into the ball head seat (40), the hoop ball head (39) and the ball head seat (40) are adapted to rotate, and the fourth adjusting screw (41) is twisted to enable one end of the fourth adjusting screw (41) to be pressed on the hoop ball head (39).

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