Mechanical control device for magnetic compression peritoneal blood flow occlusion bed

Abstract

The present invention provides a mechanical control device for a magnetic compression abdominal blood flow blocking bed, comprising a support frame, a lifting platform, a sliding seat, a magnet block and a driving mechanism; the lifting platform is movably arranged on the support frame in a vertical direction; the sliding seat is movably arranged on the lifting platform in a preset horizontal direction; the magnet block is arranged on the sliding seat; the driving mechanism is connected to both the lifting platform and the sliding seat, and the driving mechanism is used to drive the lifting platform to move up and down in a vertical direction and drive the sliding seat to move in a preset horizontal direction to drive the magnet block to move to a predetermined position, so that when performing emergency hemostasis in a surgical operation, the position of the mother magnet can be quickly and flexibly moved according to the needs of treatment, thereby generating an attraction force of the corresponding direction and angle on the sub-magnet, thereby generating a continuous and stable compressive force on the tissue, thereby achieving blood flow blocking. The problem that the magnetic blocking bed in the prior art cannot flexibly move the position of the mother magnet according to the needs of treatment is solved.

Description

Technical Field

[0001] The invention relates to the field of magnetic surgical medical equipment, in particular to a mechanical control device for a magnetic compression abdominal blood flow blocking bed. Background Art

[0002] Modern surgical technology has made great progress along with the continuous development of other disciplines. However, blood control technology is still a major problem that has always troubled surgeons since the birth of modern surgical technology. Acute massive blood loss often causes patients to go into shock or even die.

[0003] When there is massive abdominal bleeding, it is very severe. Without effective blood control measures, the patient can bleed several thousand milliliters in just a few minutes, leading to hemorrhagic shock and death. In such emergency situations, surgeons often find it difficult to timely and accurately expose, separate and block damaged blood vessels, so the mortality rate is quite high.

[0004] At present, magnetic blocking beds have been used to a certain extent in surgical operations. The principle of the magnetic blocking bed is to place the mother magnet outside the human body and the sub-magnet on the upper part of the blood vessels in the body. The magnetic field can be used to generate attraction between the mother and sub-magnets through the air, and the sub-magnet can be used to generate continuous and stable pressure on the tissue, thereby achieving blood flow blocking.

[0005] However, the existing magnetic blocking bed cannot flexibly move the position of the mother magnet according to the needs of treatment, resulting in poor treatment effect and difficulty in achieving the purpose of quickly blocking damaged blood vessels. Summary of the invention

[0006] The main purpose of the present invention is to provide a mechanical control device for a magnetic compression abdominal blood flow blocking bed to solve the problem that the magnetic blocking bed in the prior art cannot flexibly move the position of the mother magnet according to the needs of treatment.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a mechanical control device for a magnetic compression abdominal blood flow blocking bed, comprising: a support frame; a lifting platform, which is movably arranged on the support frame up and down in a vertical direction; a sliding seat, which is movably arranged on the lifting platform along a preset horizontal direction; a magnet block, which is arranged on the sliding seat; a driving mechanism, which is connected to both the lifting platform and the sliding seat, and the driving mechanism is used to drive the lifting platform to move up and down in the vertical direction and drive the sliding seat to move in a preset horizontal direction to drive the magnet block to move to a predetermined position.

[0008] Furthermore, the support frame includes: a guide slide column, there are multiple guide slide columns, and the multiple guide slide columns are all extended in the vertical direction; wherein, a plurality of linear bearings matching the multiple guide slide columns are arranged on the lifting platform, and the lifting platform is installed on the multiple guide slide columns one by one through the multiple linear bearings so that the lifting platform can slide in the vertical direction.

[0009] Furthermore, a slide rail is arranged on the lifting platform, and the slide rail is extended along a preset horizontal direction; wherein a slide groove matching the slide rail is opened on the sliding seat, and the sliding seat is installed on the slide rail through the slide groove to slide along the preset horizontal direction.

[0010] Furthermore, the support frame includes a base, and the driving mechanism includes: a lifter, the lower end of the lifter is connected to the base, the upper end of the lifter is connected to the lifting platform, and the lifter is used to drive the lifting platform to slide in the vertical direction.

[0011] The lifting device comprises: a lower connecting seat, which is used to connect to the base; an upper connecting seat, which is used to connect to the lifting platform; a lower swing arm and an upper swing arm, wherein there are two lower swing arms and two upper swing arms, the first ends of the two lower swing arms are respectively hinged to the lower connecting seat, the first ends of the two upper swing arms are respectively hinged to the upper connecting seat, and the second ends of the two lower swing arms are correspondingly hinged to the second ends of the two upper swing arms; a first screw rod, the two ends of the first screw rod are provided with thread structures with opposite spiral directions; a first screw rod nut, there are two first screw rod nuts, and the two first screw rod nuts are correspondingly arranged at the connection between the second ends of the two lower swing arms and the second ends of the two upper swing arms; wherein the thread structures at the two ends of the first screw rod are correspondingly inserted into the two first screw rod nuts, and the first screw rod is used to drive the lower connecting seat and the upper connecting seat to approach or move away from each other during rotation to drive the lifting platform to slide in the vertical direction.

[0012] Furthermore, the driving mechanism also includes: a second screw rod, which is extended along a preset horizontal direction and rotatably mounted on the lifting platform around its axis; wherein a second screw rod nut matching the second screw rod is provided on the sliding seat, and the second screw rod is inserted into the second screw rod nut to drive the sliding seat to move along the preset horizontal direction when rotating.

[0013] Furthermore, the driving mechanism also includes: a gear box, which is arranged on the lifting platform; a first transmission gear set, which is arranged in the gear box and is drivingly connected to the first screw rod; a second transmission gear set, which is arranged in the gear box and is drivingly connected to the second screw rod; a main drive shaft, which is rotatably arranged on the lifting platform around its axis, and the head end of the main drive shaft extends into the gear box; a clutch claw, which is arranged at the head end of the main drive shaft and is located between the first transmission gear set and the second transmission gear set; wherein the clutch claw has a first preset position and a second preset position that move along the extension direction of the main drive shaft, and when the clutch claw moves to the first preset position, it meshes with the first transmission gear set to drive the first screw rod to rotate under the action of the main drive shaft, and when the clutch claw moves to the second preset position, it meshes with the second transmission gear set to drive the second screw rod to rotate under the action of the main drive shaft.

[0014] Furthermore, the driving mechanism also includes: a first pulley, which is arranged on the first output shaft of the first transmission gear set; wherein a second pulley is arranged on the first screw rod, and the first pulley is connected to the second pulley through the first transmission belt to drive the first screw rod to rotate.

[0015] Furthermore, the driving mechanism also includes: a third pulley, which is arranged on the second output shaft of the second transmission gear set; wherein a fourth pulley is arranged on the second screw rod, and the third pulley is connected to the fourth pulley through the second transmission belt to drive the second screw rod to rotate.

[0016] Furthermore, the main drive shaft is movably arranged on the lifting platform along its extension direction, and the driving mechanism also includes: a crank, which is arranged at the tail end of the main drive shaft, and the crank is used to drive the main drive shaft to move along the extension direction of the main drive shaft and rotate around the axis of the main drive shaft; wherein, when the main drive shaft moves along its extension direction, it drives the clutch claw to move between a first preset position and a second preset position; when the main drive shaft rotates around its axis, it drives the first screw rod or the second screw rod to rotate.

[0017] The mechanical control device for magnetic compression abdominal blood flow blocking bed using the technical solution of the present invention comprises a support frame, a lifting platform, a sliding seat, a magnet block and a driving mechanism; the lifting platform is movably arranged on the support frame in the vertical direction; the sliding seat is movably arranged on the lifting platform in the preset horizontal direction; the magnet block is arranged on the sliding seat; the driving mechanism is connected to both the lifting platform and the sliding seat, and the driving mechanism is used to drive the lifting platform to move up and down in the vertical direction and drive the sliding seat to move in the preset horizontal direction to drive the magnet block to move to a predetermined position, so that when performing emergency hemostasis in surgical operations, the position of the mother magnet can be quickly and flexibly moved according to the needs of treatment, thereby generating an attraction force of the corresponding direction and angle on the sub-magnet, thereby generating a continuous and stable compressive force on the tissue, thereby achieving blood flow blocking. The problem that the magnetic blocking bed in the prior art cannot flexibly move the position of the mother magnet according to the needs of treatment is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of a three-dimensional structure from a first perspective of a mechanical control device for a magnetic compression abdominal blood flow occlusion bed, which can be selected according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a stereoscopic structure from a second perspective of a mechanical control device for a magnetic compression abdominal blood flow occlusion bed, which can be selected according to an embodiment of the present invention;

[0021] Figure 3 It is a structural schematic diagram of a lifting platform and a sliding seat of a mechanical control device for a magnetic compression abdominal blood flow occlusion bed, which can be selected according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a lifter for a mechanical control device of a magnetic compression abdominal blood flow occlusion bed, which can be selected according to an embodiment of the present invention; and

[0023] Figure 5 It is a schematic structural diagram of a driving mechanism for a mechanical control device of a magnetic compression peritoneal blood flow occlusion bed which can be selected according to an embodiment of the present invention.

[0024] The above drawings include the following reference numerals:

[0025] 10. Support frame; 11. Guide slide column; 12. Base; 13. Upper connecting frame; 20. Lifting platform; 21. Linear bearing; 22. Slide rail; 23. Bearing seat; 30. Sliding seat; 31. Slide groove; 32. Second screw nut; 40. Magnet block; 50. Driving mechanism; 51. Lifter; 511. Lower connecting seat; 512. Upper connecting seat; 513. Lower swing arm; 514. Upper swing arm; 515. First screw; 516. First screw nut; 517. First pulley; 518. Second pulley; 519. First transmission belt; 520. Third pulley; 521. Fourth pulley; 522. Second transmission belt; 52. Second screw; 53. Gear box; 531. Bevel gear mounting seat; 54. First transmission gear set; 541. First gear; 542. Second gear; 543. First output shaft; 55, second transmission gear set; 551, third gear; 552, fourth gear; 553, transmission shaft; 554, first bevel gear; 555, second bevel gear; 556, second output shaft; 56, main drive shaft; 57, clutch claw; 58, crank. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] According to an embodiment of the present invention, a mechanical control device for a magnetic compression abdominal blood flow occlusion bed is provided. Figure 1 and Figure 2As shown, it includes a support frame 10, a lifting platform 20, a sliding seat 30, a magnet block 40 and a driving mechanism 50; the lifting platform 20 is movably arranged on the support frame 10 in the vertical direction; the sliding seat 30 is movably arranged on the lifting platform 20 in the preset horizontal direction; the magnet block 40 is arranged on the sliding seat 30; the driving mechanism 50 is connected to both the lifting platform 20 and the sliding seat 30, and the driving mechanism 50 is used to drive the lifting platform 20 to move up and down in the vertical direction and drive the sliding seat 30 to move in the preset horizontal direction to drive the magnet block 40 to move to a predetermined position, so that when performing emergency hemostasis in surgical operations, the position of the mother magnet can be quickly and flexibly moved according to the needs of treatment, thereby generating an attraction force of the corresponding direction and angle on the sub-magnet, thereby generating a continuous and stable compressive force on the tissue, thereby achieving blood flow blocking. The problem that the magnetic blocking bed in the prior art cannot flexibly move the position of the mother magnet according to the needs of treatment is solved.

[0028] In specific implementation, the support frame 10 includes a guide slide column 11, a base 12 and an upper connecting frame 13. There are multiple guide slide columns 11, and the multiple guide slide columns 11 are all extended in the vertical direction; wherein, the lifting platform 20 is provided with multiple linear bearings 21 matching the multiple guide slide columns 11. Optionally, there are four guide slide columns 11 and four linear bearings 21. The bottom ends of the four guide slide columns 11 are correspondingly connected to the four corners of the base 12. The upper connecting frame 13 is a rectangular frame, and the top ends of the four guide slide columns 11 are correspondingly connected to the four corners of the upper connecting frame 13; the four linear bearings 21 are correspondingly arranged at the four corners of the lifting platform 20, and the four linear bearings 21 are installed on the four guide slide columns 11 one by one so that the lifting platform 20 slides in the vertical direction under the drive of the driving mechanism 50 to adjust the height position of the magnet block 40.

[0029] Furthermore, if Figure 3 As shown, the lifting platform 20 is provided with two slide rails 22, which are arranged parallel to each other, and each slide rail 22 extends along a preset horizontal direction, which is the extension direction of the magnetic blocking bed. Accordingly, the bottom surface of the sliding seat 30 is provided with two slide grooves 31 matching the slide rails 22, and the sliding seat 30 is installed on the slide rails 22 through the slide grooves 31 so that it can slide along the preset horizontal direction under the drive of the driving mechanism 50 to adjust the position of the magnet block 40 along the extension direction of the magnetic blocking bed.

[0030] Furthermore, the driving mechanism 50 includes a lifter 51 and a second screw rod 52. The lower end of the lifter 51 is connected to the base 12, and the upper end of the lifter 51 is connected to the lifting platform 20. The lifter 51 is used to drive the lifting platform 20 to slide in the vertical direction; the second screw rod 52 is extended along a preset horizontal direction, and two opposite bearing seats 23 are arranged on the lifting platform 20. A bearing is installed in each bearing seat 23. Both ends of the second screw rod 52 are connected to the two bearings so that it can rotate around its axis. A second screw rod nut 32 matching the second screw rod 52 is arranged on the sliding seat 30. The second screw rod 52 is inserted into the second screw rod nut 32 so as to drive the sliding seat 30 to move along the preset horizontal direction when rotating.

[0031] Specifically, Figure 4 As shown, the lifter 51 includes a lower connecting seat 511, an upper connecting seat 512, a lower swing arm 513, an upper swing arm 514, a first screw rod 515 and a first screw rod nut 516. The lower connecting seat 511 is used to be fixedly connected to the upper surface of the base 12, and the upper connecting seat 512 is fixedly connected to the lower surface of the lifting platform 20; the lower swing arm 513 and the upper swing arm 514 are both two, and the first ends of the two lower swing arms 513 are respectively hinged to the lower connecting seat 511 through connecting pins, and the first ends of the two upper swing arms 514 are respectively connected to the lower connecting seat 511 through connecting pins. The connecting pin and the upper connecting seat 512 are hinged to each other, and the second ends of the two lower swing arms 513 and the second ends of the two upper swing arms 514 are correspondingly hinged to each other through the connecting pin; there are two first screw nuts 516, and the two first screw nuts 516 are correspondingly arranged at the connection between the second ends of the two lower swing arms 513 and the second ends of the two upper swing arms 514, and the two ends of the first screw rod 515 are provided with thread structures with opposite spiral directions, and the thread structures at both ends correspond to the two first screw nuts 516, and the thread structures at both ends of the first screw rod 515 are correspondingly penetrated into the two first screw nuts 516, and the first screw rod 515 drives the two lower swing arms 513 and the two upper swing arms 514 to shrink toward the center or expand to both sides when rotating, so that the lower connecting seat 511 and the upper connecting seat 512 are close to or away from each other, thereby driving the lifting platform 20 to rise or fall in the vertical direction.

[0032] Furthermore, if Figure 1 , Figure 2 and Figure 5As shown, the driving mechanism 50 also includes a gear box 53, a first transmission gear set 54, a second transmission gear set 55, a main driving shaft 56, a clutch claw 57 and a crank 58. The gear box 53 is arranged below the lifting platform 20; the first transmission gear set 54 and the second transmission gear set 55 are relatively arranged in the gear box 53, the first transmission gear set 54 includes a first gear 541, a second gear 542 and a first output shaft 543, and the second transmission gear set 55 includes a third gear 551, a fourth gear 552, a transmission shaft 553, a first bevel gear 554, a second bevel gear 555 and a second output shaft 556. The main drive shaft 56 is rotatably arranged on the lifting platform 20 around its axis, and the head end of the main drive shaft 56 extends into the gear box 53. The first gear 541 and the third gear 551 are installed on the main drive shaft 56 and can rotate freely relative to the main drive shaft 56. The clutch claw 57 is fixedly installed on the main drive shaft 56 and rotates with the main drive shaft 56. There is a certain distance between the first gear 541 and the third gear 551 along the extension direction of the main drive shaft 56. The clutch claw 57 is located between the first gear 541 and the third gear 551, and the main drive shaft 56 can be pushed and pulled along its axial direction, wherein the clutch claw 57 has a first preset position and a second preset position that move along the extension direction of the main drive shaft 56.

[0033] The crank 58 is arranged at the tail end of the main drive shaft 56, and the main drive shaft 56 is driven to move along its extension direction and to rotate around its axis through the crank 58; when the main drive shaft 56 rotates around its axis, the first screw rod 515 is driven to rotate through the first transmission gear set 54 or the second screw rod 52 is driven to rotate through the second transmission gear set 55; the main drive shaft 56 is pushed forward by the crank 58, so that when the clutch claw 57 moves to the first preset position, it meshes with the first gear 541, thereby driving the first gear 541 to rotate; the main drive shaft 56 is pulled backward by the crank 58, so that when the clutch claw 57 moves to the second preset position, it meshes with the third gear 551, thereby driving the third gear 551 to rotate.

[0034] The second gear 542 is fixedly mounted on the first output shaft 543 and meshes with the first gear 541. A first pulley 517 is provided at the end of the first output shaft 543. A second pulley 518 is provided on the first screw rod 515. The first pulley 517 is connected to the second pulley 518 through a first transmission belt 519. Therefore, when the clutch claw 57 moves to the first preset position, the first screw rod 515 can be driven to rotate by turning the crank 58, and then the lifting platform 20 is driven to rise or fall in the vertical direction through the lifter 51 to adjust the height position of the magnet block 40.

[0035] The fourth gear 552 is fixedly mounted on the transmission shaft 553 and meshes with the third gear 551. The first bevel gear 554 is arranged at the end of the transmission shaft 553. A bevel gear mounting seat 531 is also arranged on the outside of the gear box 53. The second output shaft 556 is rotatably mounted on the bevel gear mounting seat 531. The second bevel gear 555 is mounted on one end of the second output shaft 556 and meshes with the first bevel gear 554. The other end of the second output shaft 556 is provided with a third pulley 520, wherein a fourth pulley 521 is arranged at the end of the second screw rod 52, and the third pulley 520 is connected to the fourth pulley 521 through a second transmission belt 522. Therefore, when the clutch claw 57 moves to the second preset position, the second screw rod 52 can be driven to rotate by turning the crank 58, thereby driving the sliding seat 30 to move along the preset horizontal direction to adjust the position of the magnet block 40 along the extension direction of the magnetic blocking bed.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mechanical control device for a magnetic compression peritoneal blood flow occlusion bed, characterized in that: include: A support frame (10), the support frame (10) comprising a guide slide column (11) and a base (12), the guide slide column (11) being a plurality, and the plurality of guide slide columns (11) are all extended in a vertical direction; A lifting platform (20) is arranged on the support frame (10) so as to be movable up and down in the vertical direction; a plurality of linear bearings (21) matching the plurality of guide slide columns (11) are arranged on the lifting platform (20), and the lifting platform (20) is mounted on the plurality of guide slide columns (11) in a one-to-one correspondence through the plurality of linear bearings (21) so as to enable the lifting platform (20) to slide in the vertical direction; a slide rail (22) is arranged on the lifting platform (20), and the slide rail (22) is extended along a preset horizontal direction; A sliding seat (30) is movably arranged on the lifting platform (20) along a preset horizontal direction, and a sliding groove (31) matching the sliding rail (22) is provided on the sliding seat (30). The sliding seat (30) is installed on the sliding rail (22) through the sliding groove (31) to slide along the preset horizontal direction; A magnet block (40) is arranged on the sliding seat (30); A driving mechanism (50) is connected to both the lifting platform (20) and the sliding seat (30), and is used to drive the lifting platform (20) to move up and down in a vertical direction and to drive the sliding seat (30) to move in a preset horizontal direction so as to drive the magnet block (40) to move to a predetermined position; the driving mechanism (50) comprises a lifter (51), the lower end of the lifter (51) is connected to the base (12), and the upper end of the lifter (51) is connected to the lifting platform (12). The lifting device (51) is connected to the base (12), and is used to drive the lifting platform (20) to slide in a vertical direction; the lifting device (51) comprises a lower connecting seat (511), an upper connecting seat (512), a lower swing arm (513), an upper swing arm (514), a first screw rod (515) and a first screw rod nut (516); the lower connecting seat (511) is used to be connected to the base (12); the upper connecting seat (512) is used to be connected to the lifting platform (20); the lower swing arm (513) and the first screw rod nut (516) are ... upper connecting seat (512) and the lifting platform (20) are connected to the lifting platform (20); the lower swing arm (513) and the first screw rod nut (516) are connected to the lifting platform (20); the upper connecting seat (512) and the lifting platform (20) are connected to the lifting platform (20); the lower swing arm (513) and the first screw rod nut (516) are connected to the lifting platform (20); the upper connecting seat (512) and the lifting platform (20) are connected to the lifting platform (20); the lower swing arm (513) and the first screw rod nut (516) are connected to the lifting platform (20); the upper connecting seat (512 There are two upper swing arms (514), the first ends of the two lower swing arms (513) are respectively hinged to the lower connecting seat (511), the first ends of the two upper swing arms (514) are respectively hinged to the upper connecting seat (512), and the second ends of the two lower swing arms (513) are correspondingly hinged to the second ends of the two upper swing arms (514); the two ends of the first screw rod (515) are provided with thread structures with opposite spiral directions; there are two first screw rod nuts (516), the two The first screw nuts (516) are correspondingly arranged at the connection between the second ends of the two lower swing arms (513) and the second ends of the two upper swing arms (514); wherein the threaded structures at both ends of the first screw (515) are correspondingly penetrated in the two first screw nuts (516), and the first screw (515) is used to drive the lower connecting seat (511) and the upper connecting seat (512) to move closer to or away from each other during rotation so as to drive the lifting platform (20) to slide in the vertical direction.

2. The mechanical control device for the magnetic compression peritoneal blood flow occlusion bed according to claim 1, characterized in that: The driving mechanism (50) further comprises: a second screw rod (52), the second screw rod (52) extending along the preset horizontal direction and rotatably mounted on the lifting platform (20) around its axis; The sliding seat (30) is provided with a second screw nut (32) matching the second screw (52), and the second screw (52) is inserted into the second screw nut (32) to drive the sliding seat (30) to move along the preset horizontal direction when rotating.

3. The mechanical control device for the magnetic compression peritoneal blood flow occlusion bed according to claim 2, characterized in that: The driving mechanism (50) further comprises: A gear box (53) is arranged on the lifting platform (20); A first transmission gear set (54), disposed in the gear box (53) and drivingly connected to the first screw rod (515); A second transmission gear set (55), disposed in the gear box (53) and drivingly connected to the second screw rod (52); A main drive shaft (56) is rotatably arranged on the lifting platform (20) around its axis, and the head end of the main drive shaft (56) extends into the gear box (53); A clutch claw (57) is arranged at the head end of the main drive shaft (56) and is located between the first transmission gear set (54) and the second transmission gear set (55); The clutch claw (57) has a first preset position and a second preset position that move along the extension direction of the main drive shaft (56). When the clutch claw (57) moves to the first preset position, it meshes with the first transmission gear set (54) to drive the first screw rod (515) to rotate under the action of the main drive shaft (56). When the clutch claw (57) moves to the second preset position, it meshes with the second transmission gear set (55) to drive the second screw rod (52) to rotate under the action of the main drive shaft (56).

4. The mechanical control device for the magnetic compression peritoneal blood flow occlusion bed according to claim 3, characterized in that: The driving mechanism (50) further comprises: A first pulley (517) is disposed on a first output shaft (543) of the first transmission gear set (54); Wherein, a second pulley (518) is arranged on the first screw rod (515), and the first pulley (517) is connected to the second pulley (518) via a first transmission belt (519) to drive the first screw rod (515) to rotate.

5. The mechanical control device for the magnetic compression peritoneal blood flow occlusion bed according to claim 3, characterized in that: The driving mechanism (50) further comprises: A third pulley (520) is disposed on the second output shaft (556) of the second transmission gear set (55); Wherein, a fourth pulley (521) is arranged on the second screw rod (52), and the third pulley (520) is connected to the fourth pulley (521) via a second transmission belt (522) to drive the second screw rod (52) to rotate.

6. The mechanical control device for the magnetic compression peritoneal blood flow occlusion bed according to claim 3, characterized in that: The main drive shaft (56) is movably arranged on the lifting platform (20) along its extension direction, and the driving mechanism (50) further comprises: A crank (58) is arranged at the rear end of the main drive shaft (56), and the crank (58) is used to drive the main drive shaft (56) to move along the extension direction of the main drive shaft (56) and to rotate around the axis of the main drive shaft (56); When the main drive shaft (56) moves along its extension direction, it drives the clutch claw (57) to move between the first preset position and the second preset position; when the main drive shaft (56) rotates around its axis, it drives the first screw rod (515) or the second screw rod (52) to rotate.

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