Magnetic suction surgical operation table with adjustable clamping size

Abstract

The invention relates to the field of rat and mouse operating tables, in particular to a clamping-size-adjustable magnetic suction operating table which comprises an operating table with ferromagnetism and a multifunctional magnetic connecting piece, the multifunctional magnetic connecting piece comprises a first magnet, a cylindrical shell and a clamping assembly, and the clamping assembly is arranged at the top of the cylindrical shell; the diameter of the clamping assembly is smaller than that of the cylindrical shell, the height of the cylindrical shell is equal to or larger than that of the anesthesia trachea, and the diameter of the cylindrical shell is smaller than that of the finger insertion part of the hemostatic forceps in the linear direction parallel to the center line of the cylindrical shell and the circumferential direction surrounding the center line of the cylindrical shell. And the distance between the outer wall of the cylindrical shell and the center line of the cylindrical shell is gradually reduced. The multifunctional magnetic connecting piece is provided with the clamping assembly and the cylindrical shell in a special shape, and the purpose of clamping anesthesia tracheas, traction lines and hook hooks of different sizes and haemostatic forceps of different specifications can be achieved.

Description

Technical Field

[0001] The invention relates to the field of mouse and rat operating tables, and in particular to a magnetic suction operating table with adjustable clamping size. Background Art

[0002] During animal surgery (such as mouse liver transplantation), the surgeon not only needs to fix the mouse, but also needs to fix the anesthesia trachea, hemostat, traction wire and retractor. As the operation progresses, the surgeon needs to adjust the position, angle and tension of the hemostat, traction wire and retractor at any time. If each surgical instrument needs manual assistance to fix its position, a mouse liver transplantation operation will require 2 to 3 assistants, which consumes a lot of manpower.

[0003] In order to solve the problem of high manpower consumption, people have designed an operating table that uses permanent magnets to absorb and fix surgical instruments, such as the veterinary operating table disclosed in CN 113974892 A. However, different surgical instruments have different fixation requirements. Some surgical instruments need to be fixed at a specified height and angle and cannot be simply fixed using permanent magnets. Summary of the invention

[0004] The purpose of the present invention is to provide a magnetic suction surgical operating table with adjustable clamping size, so as to solve the problem of how to use permanent magnets to absorb and fix surgical instruments on the operating table.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] The present application provides a magnetic surgical operating table with adjustable clamping size, comprising a ferromagnetic operating table and at least six multifunctional magnetic connectors adsorbed on the operating table; the multifunctional magnetic connector comprises a first magnet, a cylindrical shell and a clamping assembly connected in sequence, the first magnet is used to be adsorbed on the tabletop of the operating table, the cylindrical shell is used to stand upright on the operating table, the clamping assembly is arranged on the top of the cylindrical shell, the clamping assembly is used to clamp a pulling wire, and the diameter of the clamping assembly is smaller than the diameter of the cylindrical shell, so that the annular end of the hook can be constrained between the clamping assembly and the cylindrical shell the height of the cylindrical shell is equal to or greater than the diameter of the anesthesia trachea, and the diameter of the cylindrical shell is smaller than the finger insertion part of the hemostatic forceps, so that the two cylindrical shells can clamp the anesthesia trachea from both sides, and the two cylindrical shells can open the two finger insertion parts of the hemostatic forceps to both sides; along the straight line direction parallel to the center line of the cylindrical shell, the distance between the outer wall of the cylindrical shell and the center line of the cylindrical shell gradually decreases, and along the circumferential direction surrounding the center line of the cylindrical shell, the distance between the outer wall of the cylindrical shell and the center line of the cylindrical shell gradually decreases.

[0007] Furthermore, the outer peripheral surface of the cylindrical shell surrounding its own center line includes a first inclined wall, a second inclined wall, a third inclined wall and a vortex inclined wall connected in sequence, the first inclined wall, the second inclined wall and the third inclined wall are all straight, and the angles between the first inclined wall, the second inclined wall and the third inclined wall and the table top of the operating table are all acute angles, the angle between the vortex inclined wall and the table top of the operating table is an obtuse angle, and the radius of one end of the vortex inclined wall connected to the first inclined wall is smaller than the radius of one end of the vortex inclined wall connected to the third inclined wall.

[0008] Furthermore, the clamping assembly includes a slider, a spring and a knob, a non-through guide hole is formed inside the knob, the slider is embedded in the guide hole, and the slider can slide in a direction perpendicular to the operating table, a pressing portion is formed on the top of the slider, which passes through the knob and is exposed above the knob, and the cross-section of the pressing portion is smaller than the cross-section of the slider, so that the pressing portion can pass through the knob, while the slider cannot pass through the knob, the spring is arranged between the slider and one end of the guide hole, so that the slider slides toward the other end of the guide hole, and the pressing portion always protrudes above the knob when no external force is applied, and the pressing portion can rebound upward after being pressed by external force, thereby clamping the pull wire between the slider and the knob.

[0009] Furthermore, the slider is provided with a through first wire clamping groove, and the knob is provided with a through second wire clamping groove, the widths of the first wire clamping groove and the second wire clamping groove allow the traction wire to pass therethrough unimpeded, and the first wire clamping groove and the second wire clamping groove are distributed along the sliding direction of the slider, and after the pressing portion is pressed, the first wire clamping groove is coaxial with the second wire clamping groove, and after the pressing portion rebounds, the radial distance between the first wire clamping groove and the second wire clamping groove satisfies the requirement of preventing the traction wire from moving through the friction between the hole wall and the traction wire.

[0010] Furthermore, the knob is coaxially connected to a screw rod, which is rotatably connected to the cylindrical shell. A nut guide groove extending along the axial direction is provided inside the cylindrical shell. The screw rod is threadedly connected to a nut which slides along the axis of the nut guide groove and cannot rotate. The first magnet is fixedly connected to the nut. When the knob is turned, the first magnet follows the nut and moves along the nut guide groove, thereby changing the distance between the first magnet and the operating table.

[0011] Furthermore, a shaft sleeve is arranged on the top of the cylindrical shell, a step is formed between the cylindrical shell and the shaft sleeve, and the annular end of the draw hook is sleeved on the outside of the shaft sleeve.

[0012] Furthermore, the knob is coaxially connected to the screw through a rotating shaft, an axial hole is formed at the center of the sleeve and is rotatably matched with the rotating shaft, a spring retaining ring is installed on the outer circumference of the rotating shaft, and the spring retaining ring and the knob are respectively arranged at both ends of the axial hole to prevent the rotating shaft from moving axially.

[0013] Furthermore, the operating table includes two table tops arranged opposite to each other, the two table tops are connected by rivets, a resistance wire is embedded between the two table tops, a plug with a wiring harness is connected to the outside of the operating table, and the plug is electrically connected to the resistance wire.

[0014] Furthermore, a plurality of internal magnets are embedded between the two table plates, and the internal magnets are evenly distributed along a rectangular array to form a uniform magnetic field on the surface of the operating table.

[0015] Furthermore, it also includes two bar magnets, which are respectively adsorbed on the top and bottom of the operating table, and the length direction of the bar magnets is arranged along the width direction of the operating table, so as to clamp the upper and lower sides of the sterile cloth on the surface of the operating table.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] The embodiment of the present invention uses a multifunctional magnetic connector to be adsorbed on an operating table with ferromagnetism. The multifunctional magnetic connector itself has a clamping component and a specifically shaped cylindrical shell, which can achieve the purpose of clamping anesthesia tracheas of different sizes, traction wires, hooks and hemostatic forceps of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 A top view of a first embodiment of the present invention;

[0020] Figure 2 This is an application mode of the first embodiment of the present invention;

[0021] Figure 3 Another application mode of the first embodiment of the present invention;

[0022] Figure 4 Another application mode of the first embodiment of the present invention;

[0023] Figure 5 A front view of a multifunctional magnetic module according to a first embodiment of the present invention;

[0024] Figure 6 for Figure 5 Cross-sectional view in the AA direction;

[0025] Figure 7 is a top view of a multifunctional magnetic module according to a first embodiment of the present invention;

[0026] Figure 8 It is an assembly diagram of an operating table according to a first embodiment of the present invention;

[0027] Fig. 9 is a three-dimensional diagram of a working condition of the second embodiment of the present invention;

[0028] Fig.10 is a three-dimensional diagram of another working state of the second embodiment of the present invention;

[0029] The numbers in the figure represent the following:

[0030] 1-operating table; 11-table top; 111-groove; 12-rivet; 13-resistance wire; 14-magnet inside the table; 15-wiring harness; 16-plug; -surgical instrument; 21-anesthesia trachea; 22-hemostatic forceps; 23-pulling wire; 24-retractor hook; 241-elastic rope; 242-ring end; 25-sterile cloth; 3-bar magnet; 4-multifunctional magnetic connector; 5-cylindrical shell; 51-first Inclined wall; 52-second inclined wall; 53-third inclined wall; 54-vortex inclined wall; 55-sleeve; 56-step; 57-nut guide groove; 6-first magnet; 7-clamping assembly; 71-slider; 711-pressing portion; 712-first wire clamping groove; 72-spring; 73-knob; 731-second wire clamping groove; 74-guide hole; 91-rotating shaft; 92-nut; 93-screw; 94-spring retaining ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] During surgery on rats and mice (such as mouse liver transplantation), the surgeon not only needs to fix the mouse, but also needs to fix the anesthesia trachea 21, hemostatic forceps 22, traction wire 23 and retractor 24. As the surgery proceeds, the surgeon needs to adjust the position, angle and tension of the hemostatic forceps 22, traction wire 23 and retractor 24 at any time. If each surgical instrument needs manual assistance to fix its position, then a mouse liver transplantation surgery will require 2 to 3 assistants, which consumes a lot of manpower.

[0033] In order to solve the above problems, the present invention provides a magnetic surgical operating table with adjustable clamping size. The operating table 1 has ferromagnetism. At least six magnetic connectors are placed on the operating table 1. Each magnetic connector includes a connecting portion matching different surgical instruments, and at least one magnet, so that the magnetic connector can be firmly adsorbed to the surface of the operating table 1 through the magnet, and the surgical instrument can be fixed to the surface of the operating table 1 through the connecting portion.

[0034] (First embodiment)

[0035] refer to Figure 1 There are four kinds of surgical instruments fixed on the surface of the operating table 1, namely, anesthesia trachea 21, hemostatic forceps 22, traction wire 23 and retractor 24. The four kinds of surgical instruments are all facing the mouse (not shown) in the center of the operating table 1.

[0036] Among them, an anesthesia trachea 21 is placed flat on the surface of the operating table 1, and a hemostat 22 is placed flat on the top of the anesthesia trachea 21. On the one hand, the anesthesia trachea 21 supports the hemostat 22 so that the jaws of the hemostat 22 are located at an appropriate height. On the other hand, the hemostat 22 presses the anesthesia trachea 21 to increase the friction between the anesthesia trachea 21 and the operating table 1. The purpose of the hemostat 22 is to lift the xiphoid process to better expose the surgical field.

[0037] The two pulling wires 23 pull the two branches of the portal vein from both sides of the operating table 1 respectively, and the two retractors 24 pull the tissues of the mouse from both sides of the operating table 1 respectively to expose the vicinity of the liver.

[0038] The four surgical instruments are respectively fixed by six multifunctional magnetic connectors 4. Each multifunctional magnetic connector 4 includes a cylindrical shell 5 and a first magnet 6 arranged inside the cylindrical shell. The first magnet 6 is connected to the cylindrical shell 5, and the first magnet 6 is magnetically connected to the operating table 1, so that the cylindrical shell can be vertically adsorbed on the operating table 1.

[0039] refer to Figure 2 , Figure 7 The anesthesia trachea 21 and the hemostatic forceps 22 are fixed by two multifunctional magnetic connectors 4, and the outer peripheral surface of the cylindrical shell 5 surrounding its own center line includes a first inclined wall 51, a second inclined wall 52, a third inclined wall 53 and a vortex inclined wall 54 connected in sequence.

[0040] The first slanted wall 51 , the second slanted wall 52 , and the third slanted wall 53 are all straight, and the angles between the first slanted wall 51 , the second slanted wall 52 , and the third slanted wall 53 and the table top of the operating table 1 are all acute angles.

[0041] When the anesthesia trachea 21 is clamped between the two multifunctional magnetic connectors 4 , the first inclined wall 51 , the second inclined wall 52 and the third inclined wall 53 can restrict the horizontal and vertical movements of the anesthesia trachea 21 .

[0042] The angle between the vortex inclined wall 54 and the table top of the operating table 1 is an obtuse angle, and the radius of one end of the vortex inclined wall 54 connected to the first inclined wall 51 is smaller than the radius of one end of the vortex inclined wall 54 connected to the third inclined wall 53, so that the diameters of the cylindrical shell 5 are different along the direction perpendicular to the midline of the first inclined wall 51, the second inclined wall 52 and the third inclined wall 53.

[0043] When the finger insertion portion of the hemostatic forceps 22 is sleeved on the outside of the cylindrical shell 5 and the vortex inclined wall 54 abuts against the inner circle of the finger insertion portion of the hemostatic forceps 22, the user can rotate the multifunctional magnetic connector 4, thereby selectively using one of the first inclined wall 51, the second inclined wall 52 and the third inclined wall 53 to clamp the two sides of the anesthesia trachea 21, so that the cylindrical shell 5 can simultaneously clamp the anesthesia trachea 21 and tighten the hemostatic forceps 22.

[0044] refer to Figure 3 The multifunctional magnetic connector 4 also includes a sleeve 55 arranged on the top of the cylindrical shell 5, and a step 56 is formed between the cylindrical shell 5 and the sleeve 55. The annular end 242 of the hook 24 is sleeved on the outside of the sleeve 55, and the annular end 242 rests on the step 56. The annular end 242 is connected to the hook 24 through an elastic rope 241.

[0045] refer to Figure 4 The multifunctional magnetic connector 4 also includes a clamping assembly 7 arranged on the top of the knob 73. The clamping assembly 7 includes a slider 71, a spring 72 and a knob 73. A non-through guide hole 74 is formed inside the knob 73. The slider 71 is embedded in the guide hole 74, and the slider 71 can slide in a direction perpendicular to the operating table 1. A pressing portion 711 is formed on the top of the slider 71, which passes through the knob 73 and is exposed above the knob 73. The cross section of the pressing portion 711 is smaller than the cross section of the slider 71, so that the pressing portion 711 can pass through the knob 73, while the slider 71 cannot pass through the knob 73. The spring 72 is arranged between the slider 71 and one end of the guide hole 74, so that the slider 71 slides toward the other end of the guide hole 74 (close to the direction of the pressing portion 711). When no external force is applied, the pressing portion 711 always protrudes above the knob 73, and the pressing portion 711 can rebound upward after being pressed by an external force.

[0046] A through first wire clamping groove 712 is provided on the slider 71, and a through second wire clamping groove 731 is provided on the knob 73. The widths of the first wire clamping groove 712 and the second wire clamping groove 731 allow the pulling wire 23 to pass through them unimpeded. The pulling wire 23 can pass through the side of the slider 71 to enter the first wire clamping groove 712, and the pulling wire 23 can pass through the side of the knob 73 to enter the second wire clamping groove 731.

[0047] The first wire clamping groove 712 and the second wire clamping groove 731 are distributed along the sliding direction of the slider 71. After the pressing portion 711 is pressed, the first wire clamping groove 712 is coaxial with the second wire clamping groove 731. After the pressing portion 711 rebounds, the radial distance between the first wire clamping groove 712 and the second wire clamping groove 731 meets the requirement of preventing the pulling wire 23 from moving by the friction between the hole wall and the pulling wire 23.

[0048] In addition, the magnetic force of the first magnet 6 is a crucial parameter. If the magnetic force of the first magnet 6 is relatively high, it can more stably adsorb the vascular clamp and the operating table 1. However, it is difficult to move the position of the first magnet 6 during the operation. On the contrary, if the magnetic force of the first magnet 6 is relatively low, it is easy to move the position of the first magnet 6 during the operation, thereby adjusting the position, angle and tension of the traction wire 23. However, it is difficult for the first magnet 6 to stably adsorb the vascular clamp and the operating table 1.

[0049] Especially in liver transplantation surgery on mice and rats, since the two branches of the portal vein are relatively thin and very easy to tear, the first magnet 6 should apply a smaller pulling force to the traction wire 23. However, in order to fully expose the abdominal cavity, the first magnet 6 needs to apply a larger pulling force to the two hooks 24. Therefore, magnets used in different positions require different magnetic forces.

[0050] In addition, when performing surgery on rats and mice of different sizes, it is also necessary to select magnets with appropriate magnetic force. When performing surgery on rats, the magnet needs a larger magnetic force, while when performing surgery on mice, the magnet needs a smaller magnetic force.

[0051] In order to solve the above problem, the multifunctional magnetic connector 4 also includes a manipulable screw slide. The knob 73 is not fixedly connected to the cylindrical housing 5, but can be rotatably connected to the cylindrical housing 5, and is connected to the first magnet 6 through the screw slide. The screw slide can be manipulated to drive the first magnet 6 closer to or away from the operating table 1, so that the magnetic force between the first magnet 6 and the operating table 1 can be adjusted.

[0052] refer to Figure 5 , Figure 6 , the implementation method of the screw slide is:

[0053] A nut guide groove 57 extending along the axial direction is arranged inside the cylindrical housing 5 , and the screw slide includes a rotating shaft 91 , a nut 92 and a screw 93 .

[0054] The knob 73, the rotating shaft 91 and the screw rod 93 are coaxially connected. An axial hole that rotates with the rotating shaft 91 is formed at the center of the sleeve 55. A spring retaining ring 94 is installed on the outer peripheral surface of the rotating shaft 91. The spring retaining ring 94 and the knob 73 are respectively arranged at both ends of the axial hole to prevent the rotating shaft 91 from moving axially, so that the screw rod 93 is rotationally connected to the cylindrical housing 5.

[0055] The nut 92 can slide along the axis of the nut guide groove 57 and cannot rotate. The screw 93 is installed at the center of the nut guide groove 57 and is threadedly connected to the nut 92, so that when the user rotates the knob 73, the nut 92 can move up and down along the nut guide groove 57.

[0056] The first magnet 6 is fixedly connected to the nut 92 , so that when the user rotates the knob 73 , the distance between the first magnet 6 and the operating table 1 can be changed, thereby changing the magnetic force between the first magnet 6 and the operating table 1 .

[0057] In summary, the cylindrical housing 5, the first magnet 6, the clamping assembly 7 and the screw slide are integrated into one component, so that the operating table 1 only requires six common magnetic connectors, reducing the difficulty of disinfection and storage, and the magnetic force between the magnetic connector and the operating table 1 can be adjusted, thereby improving the operability of the magnetic connector.

[0058] To summarize, two pulling wires 23 are fixed to the operating table 1 by two multifunctional magnetic connectors 4, an anesthesia trachea 21, a hemostatic forceps 22 and two retractors 24 are fixed to the operating table 1 by four multifunctional magnetic connectors 4, and the position of each multifunctional magnetic connector 4 can be adjusted at any time, thereby realizing a working environment in which mouse liver transplantation surgery can be performed without an assistant.

[0059] In addition, the operating table 1 also has the function of constant temperature heating. Figure 8 The operating table 1 includes two oppositely arranged table tops 11, the two table tops 11 are connected by rivets 12, and a resistance wire 13 is embedded between the two table tops 11. Figure 1 A plug 16 with a wiring harness 15 is connected to the outside of the operating table 1. The plug 16 is electrically connected to the resistance wire 13. The plug 16 can be connected to a power source to provide power to the resistance wire 13, so that the resistance wire 13 can be powered on and heated to increase the temperature of the operating table 1.

[0060] Preferably, a temperature sensor can also be embedded inside the operating table 1, and a controller is installed between the plug 16 and the resistance wire 13, and the controller is electrically connected to the temperature sensor, so that when the temperature of the operating table 1 is lower than a preset threshold, the resistance wire 13 is energized, and when the temperature of the operating table 1 is higher than the preset threshold, the resistance wire 13 is de-energized, thereby allowing the operating table 1 to maintain a constant temperature.

[0061] In addition, the controller also includes a human-machine interaction module (such as a knob) so that the operator can manually select a suitable temperature for the operating table 1 .

[0062] In addition, in order to form or enhance the magnetic force between the operating table 1 and the magnetic connection piece, refer to Figure 8 A plurality of internal magnets 14 are embedded between the two table plates 11 , and the plurality of internal magnets 14 are evenly distributed along a rectangular array, forming a uniform magnetic field on the surface of the operating table 1 , so that the first magnet 3 and the second magnet 4 can be adsorbed on the surface of the table plate 11 .

[0063] (Second embodiment)

[0064] The surface of the operating table 1 can also quickly install and remove the sterile cloth 25, refer to Fig. 9 and Fig.10 The operating table 1 also includes two bar magnets 3, which are respectively adsorbed on the top and bottom of the operating table 1, and the length direction of the bar magnets 3 is arranged along the width direction of the operating table 1, so as to clamp the upper and lower sides of the sterile cloth 25 on the surface of the operating table 1.

[0065] Furthermore, the table top 11 of the operating table 1 is provided with a downwardly recessed groove 111 , which matches the bar magnet 3 . When the bar magnet 3 presses the sterile cloth 25 to be embedded in the groove 111 , the sterile cloth 25 is tightened along the length direction of the operating table 1 .

[0066] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A magnetic surgical operating table with adjustable clamping size, characterized in that: It comprises a ferromagnetic operating table (1) and at least six multifunctional magnetic connectors (4) adsorbed on the operating table; The multifunctional magnetic connector (4) comprises a first magnet (6), a cylindrical shell (5) and a clamping assembly (7) which are connected in sequence, wherein the first magnet (6) is used to be adsorbed on the surface of an operating table, the cylindrical shell (5) is used to stand upright on the operating table (1), the clamping assembly (7) is arranged on the top of the cylindrical shell (5), the clamping assembly (7) is used to clamp a pulling wire (23), and the diameter of the clamping assembly (7) is smaller than the diameter of the cylindrical shell (5), so that the annular end (242) of the retractor (24) can be constrained at the connection between the clamping assembly (7) and the cylindrical shell (5); The height of the cylindrical shell (5) is equal to or greater than the diameter of the anesthesia trachea (21), and the diameter of the cylindrical shell (5) is smaller than the finger insertion portion of the hemostatic forceps (22), so that the two cylindrical shells (5) can clamp the anesthesia trachea (21) from both sides, and the two cylindrical shells (5) can open the two finger insertion portions of the hemostatic forceps (22) to both sides; Along a straight line direction parallel to the center line of the cylindrical shell (5), the distance between the outer wall of the cylindrical shell (5) and the center line of the cylindrical shell (5) gradually decreases, and along a circumferential direction surrounding the center line of the cylindrical shell (5), the distance between the outer wall of the cylindrical shell (5) and the center line of the cylindrical shell (5) gradually decreases.

2. The magnetic surgical operating table with adjustable clamping size according to claim 1, characterized in that: The outer peripheral surface of the cylindrical shell (5) surrounding its own center line comprises a first inclined wall (51), a second inclined wall (52), a third inclined wall (53) and a vortex inclined wall (54) connected in sequence, the first inclined wall (51), the second inclined wall (52) and the third inclined wall (53) are all straight, and the angles between the first inclined wall (51), the second inclined wall (52) and the third inclined wall (53) and the table top of the operating table (1) are all acute angles, the angle between the vortex inclined wall (54) and the table top of the operating table (1) is an obtuse angle, and the radius of one end of the vortex inclined wall (54) connected to the first inclined wall (51) is smaller than the radius of one end of the vortex inclined wall (54) connected to the third inclined wall (53).

3. The magnetic surgical operating table with adjustable clamping size according to claim 1, characterized in that: The clamping assembly (7) comprises a slider (71), a spring (72) and a knob (73); a non-through guide hole (74) is formed inside the knob (73); the slider (71) is embedded inside the guide hole (74); and the slider (71) can slide in a direction perpendicular to the operating table (1); a pressing portion (711) is formed on the top of the slider (71) and passes through the knob (73) and is exposed above the knob (73); the cross section of the pressing portion (711) is smaller than the cross section of the slider (71), so that the slider (71) The pressing portion (711) can pass through the knob (73), while the slider (71) cannot pass through the knob (73); the spring (72) is arranged between the slider (71) and one end of the guide hole (74) so ​​that the slider (71) slides toward the other end of the guide hole (74); when no external force is applied, the pressing portion (711) always protrudes above the knob (73); and after being pressed by external force, the pressing portion (711) can rebound upward, thereby clamping the pulling wire (23) between the slider (71) and the knob (73).

4. The magnetic surgical operating table with adjustable clamping size according to claim 3, characterized in that: The slider (71) is provided with a through first wire clamping groove (712), and the knob (73) is provided with a through second wire clamping groove (731). The widths of the first wire clamping groove (712) and the second wire clamping groove (731) allow the pulling wire (23) to pass therethrough without hindrance. The first wire clamping groove (712) and the second wire clamping groove (731) are distributed along the sliding direction of the slider (71). After the pressing portion (711) is pressed, the first wire clamping groove (712) and the second wire clamping groove (731) are coaxial. After the pressing portion (711) rebounds, the radial distance between the first wire clamping groove (712) and the second wire clamping groove (731) meets the requirement of preventing the pulling wire (23) from moving by the friction between the hole wall and the pulling wire (23).

5. The magnetic surgical operating table with adjustable clamping size according to claim 3, characterized in that: The knob (73) is coaxially connected to a screw rod (93), and the screw rod (93) is rotatably connected to the cylindrical housing (5). A nut guide groove (57) extending along the axial direction is provided inside the cylindrical housing (5). The screw rod (93) is threadedly connected to a nut (92) that slides along the axis of the nut guide groove (57) and cannot rotate. The first magnet (6) is fixedly connected to the nut (92). When the knob (73) is turned, the first magnet (6) follows the nut (92) and moves along the nut guide groove (57), thereby changing the distance between the first magnet and the operating table (1).

6. The magnetic surgical operating table with adjustable clamping size according to claim 5, characterized in that: A shaft sleeve (55) is provided at the top of the cylindrical housing (5), a step (56) is formed between the cylindrical housing (5) and the shaft sleeve (55), and the annular end (242) of the draw hook (24) is sleeved on the outside of the shaft sleeve (55).

7. The magnetic surgical operating table with adjustable clamping size according to claim 6, characterized in that: The knob (73) is coaxially connected to the screw rod (93) via a rotating shaft (91); an axial hole rotatably matched with the rotating shaft (91) is formed at the center of the sleeve (55); a spring retaining ring (94) is installed on the outer peripheral surface of the rotating shaft (91); the spring retaining ring (94) and the knob (73) are respectively arranged at two ends of the axial hole to prevent the rotating shaft (91) from moving axially.

8. The magnetic surgical operating table with adjustable clamping size according to claim 1, characterized in that: The operating table (1) comprises two table tops (11) arranged opposite to each other, the two table tops (11) being connected via rivets (12), a resistance wire (13) being embedded between the two table tops (11), a plug (16) having a wiring harness (15) being connected to the outside of the operating table (1), and the plug (16) being electrically connected to the resistance wire (13).

9. The magnetic surgical operating table with adjustable clamping size according to claim 8, characterized in that: A plurality of internal table magnets (14) are embedded between the two table plates (11); the internal table magnets (14) are evenly distributed along a rectangular array, forming a uniform magnetic field on the table surface of the operating table (1).

10. The magnetic surgical operating table with adjustable clamping size according to claim 1, characterized in that: It also includes two bar magnets (3), which are respectively adsorbed on the top and bottom of the operating table (1), and the length direction of the bar magnets (3) is arranged along the width direction of the operating table (1), so as to clamp the upper and lower sides of the sterile cloth (25) on the surface of the operating table (1).

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