Traction device for minimally invasive thoracic and abdominal tumors

Abstract

The invention discloses a traction device for thoracic and abdominal tumor minimally invasive surgery in the technical field of medical apparatus and instruments, the traction device comprises two groups of side fixing frames and traction silk threads, the two groups of side fixing frames can be symmetrically clamped on two sides of an operating bed body, and traction tools are slidably arranged on the side fixing frames; the traction tool can be symmetrically guided into a thoracico-abdominal micro-wound of a patient from the two sides of the body of the patient and can enlarge the surgical micro-wound, the auxiliary traction assembly comprises a guide-in needle, an embedded ball is arranged at the bottom of the guide-in needle, and the two ends of a traction silk thread can penetrate through the embedded ball in a crossed mode to form a closed ring at the bottom of the guide-in needle; the upper end of the lead-in needle can be embedded and clamped to the bottom of the material pushing assembly; according to the device, the adjusting assembly is used for replacing a medical worker to hold the leading-in needle, the stability and continuity of holding the leading-in needle in an operation are improved, the operation difficulty of the operation is reduced, and the physical strength of the medical worker is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a retraction device for minimally invasive treatment of chest and abdominal tumors. Background Art

[0002] Due to the need to excise tumors in both minimally invasive surgery and laparoscopic minimally invasive surgery, medical staff need to use a retraction device to extract the excised tumors. Most of the existing retraction devices are separately arranged. An external retraction rod member is used to widen the minimally invasive incision of the patient to facilitate the operation of medical staff. Then, the patient holds the traction silk thread by hand and guides it to the tumor position of the patient to excise the patient's tumor. In order to ensure the accuracy and completeness of tumor excision, it is necessary to ensure the stability during the introduction process of the traction silk thread, which requires a high level of stability for medical staff to hold by hand and consumes more physical strength. This makes it impossible for medical staff to continuously perform surgical operations, resulting in greater surgical difficulty. Moreover, the traction silk thread is prone to entanglement and misalignment during the introduction process, affecting the surgical efficiency. Summary of the Invention

[0003] The technical problem of the present invention is to provide a retraction device for minimally invasive treatment of chest and abdominal tumors, so as to replace medical staff to hold and introduce the needle through an adjustment component, increase the stability and continuity of the introduction needle during the operation, reduce the difficulty of surgical operation, and save the physical strength of medical staff.

[0004] To achieve the above object, the present invention provides the following technical solution: A retraction device for minimally invasive treatment of chest and abdominal tumors, including side fixing frames and a traction silk thread. There are two groups of the side fixing frames, and the two groups of side fixing frames can be symmetrically clamped on both sides of the operating table. A retraction tooling is slidably arranged on each side fixing frame. The retraction tooling can be symmetrically introduced into the minimally invasive openings of the patient's chest and abdomen from both sides of the patient's body and can widen the surgical minimally invasive opening. An auxiliary traction component is arranged on one group of the retraction toolings, and the auxiliary traction component includes:

[0005] An introduction needle, the bottom of the introduction needle is provided with an embedded ball, and both ends of the traction silk thread can cross through the embedded ball to form a closed loop at the bottom of the introduction needle, and the size of the closed loop can be adjusted;

[0006] A material pushing component, the upper end of the introduction needle can be embedded and clamped at the bottom of the material pushing component, and the material pushing component can push the introduction needle to move linearly;

[0007] An adjustment component, the adjustment component is located between the material pushing component and the retraction tooling, and the adjustment component can adjust the inclination angle and direction of the introduction needle.

[0008] As a further solution of the present invention, the pulling tooling includes an inner sliding seat. A lower telescopic cylinder is fixedly installed at one end of the inner sliding seat outside the side fixing frame. An upper telescopic cylinder is fixedly installed on the upper surface of the free end of the lower telescopic cylinder. A traction frame is fixedly installed at the upper end of the upper telescopic cylinder. A bidirectional threaded rod is arranged inside the traction frame. Sliding blocks are threadedly connected to both ends of the bidirectional threaded rod. An introduction traction rod is fixedly installed on the sliding block. The ends of the two groups of introduction traction rods far away from the sliding block are bent away from each other.

[0009] As a further solution of the present invention, a lead-out rod is slidably arranged inside the introduction needle. The lead-out rod can be led out from the central position at the lower end of the introduction needle. A positioning fork is fixedly installed at the lower end of the lead-out rod. The positioning fork can be clamped on both sides of the traction silk thread. Magnetic induction blocks are arranged at the upper end of the lead-out rod and inside the introduction needle, and the magnetic properties of the two magnetic induction blocks are opposite. The magnetic size of the magnetic induction block inside the introduction needle can be controlled by the circuit current.

[0010] As a further solution of the present invention, the material pushing assembly includes a driving seat. A rotating frame is rotatably installed on the driving seat. An electric telescopic rod is fixedly installed at the middle position of the rotating frame. The lower end of the electric telescopic rod is clamped with the upper end of the introduction needle. The electric telescopic rod can stably push the introduction needle to perform a linear motion. A power supply is arranged inside the driving seat. The power supply can provide power for the electromagnetic block and the electric telescopic rod inside the introduction needle.

[0011] As a further solution of the present invention, the adjusting assembly includes a mounting seat. The mounting seat is fixedly installed on one side of the traction frame. A positioning disk is fixedly installed on the side of the mounting seat close to the traction frame. A connecting shaft is rotatably installed on the positioning disk and the connecting shaft is arranged on both sides of the positioning disk. A rotating disk and an extension frame are respectively fixedly installed at both ends of the connecting shaft. An upper rotating shaft is rotatably installed at the end of the extension frame far away from the connecting shaft. Upper connecting frames are fixedly installed at both ends of the upper rotating shaft. The other ends of the upper connecting frames are fixedly installed on both sides of the driving seat.

[0012] As a further solution of the present invention, an extension block is fixedly installed on the rotating disk. Fixed telescopic rods are fixedly installed on the extension block, the upper connecting frame and the rotating frame. The fixed telescopic rods can lock the positions of the rotating disk and the positioning disk, the positions of the upper connecting frame and the extension frame, and the positions between the rotating frame and the driving seat.

[0013] As a further solution of the present invention, mounting seats are fixedly installed on both sides of the traction frame. A winding wheel is rotatably installed on the mounting seat. Both ends of the traction silk thread are respectively wound on the winding wheels on both sides. Locking nuts are arranged at both ends of the winding wheel.

[0014] As a further solution of the present invention, on both the upper and lower ends of the side away from the lower telescopic cylinder of the inner sliding seat, side positioning frames are fixedly installed. The side positioning frames extend to the upper and lower sides of the side fixed frame. Positioning screws are threadedly connected to the side positioning frames. One end of the positioning screw can rotate and abut against the surface of the side fixed frame. Inner telescopic rods are inclined at both ends of the side fixed frame. A lower positioning plate is fixedly installed at the lower end of the inner telescopic rod. When the inner telescopic rod contracts, the edge of the operating bed body can be clamped between the side fixed frame and the lower positioning plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, medical staff adjust the inclination angle and direction of the guiding needle through the adjusting component. After adjustment, the guiding needle is held by the adjusting component for subsequent surgical operations. This can make the guiding needle more stable during operation, avoiding the problems of easy shaking and dislocation when manually held, and reducing the physical consumption of medical staff. The guiding needle moves linearly through the feeding component, thereby driving the traction silk thread closer to the tumor position of the patient. The feeding component can ensure that the guiding needle moves along a straight line, increasing the accuracy of the entry path of the guiding needle, avoiding the problem of scratching the patient's tissue due to unstable manual holding and misalignment, increasing the stability and continuity of the holding and movement of the guiding needle during the operation, reducing the difficulty of surgical operation, and saving the physical strength of medical staff.

[0017] 2. In the present invention, the guiding needle drives the traction silk thread to enter the patient's body through the linear movement of the feeding component. Through cooperation with the adjusting component, the guiding needle gradually approaches the tumor position to be cut. During the introduction process, both ends of the traction silk thread are locked, and the positioning fork is exported and clamped on the traction silk thread through the magnetic induction block. As a result, the traction silk thread forming a closed loop at the lower end of the guiding needle is stretched on both sides of the export rod under the pushing action of the positioning fork, thus avoiding entanglement and misalignment of the traction silk thread during the process of entering the patient's body. After approaching the tumor position, the locking of both ends of the traction silk thread is released. By adjusting the electric power of the magnetic induction block, the length of the guiding needle exported from the lower end of the export rod can be controlled, thereby controlling the size of the closed loop formed by the traction silk thread at the lower end of the guiding needle. The larger the export rod exports beyond the closed loop, the more suitable it is for the tumor size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2For the present invention Figure 1 Partial structural schematic diagram of location A in the present invention;

[0021] Figure 3 For the present invention Figure 1 Partial structural schematic diagram of location B in the present invention;

[0022] Figure 4 For the present invention Figure 1 Partial structural schematic diagram of location C in the present invention;

[0023] Figure 5 Top - view structural schematic diagram of the present invention;

[0024] Figure 6 For the present invention Figure 5 Partial structural schematic diagram of location D in the present invention;

[0025] Figure 7 Structural sectional view of the present invention.

[0026] In the attached drawings: 1. Side fixing frame; 2. Lower positioning plate; 3. Inner telescopic rod; 4. Side positioning frame; 5. Mounting seat; 6. Traction frame; 7. Extension frame; 8. Upper rotating shaft; 9. Upper connecting frame; 10. Fixed telescopic rod; 11. Introduction needle; 12. Electric telescopic rod; 13. Rotating frame; 14. Winding wheel; 15. Inner sliding seat; 16. Connecting shaft; 17. Lower telescopic cylinder; 18. Upper telescopic cylinder; 19. Introduction traction rod; 20. Traction wire; 21. Positioning disk; 22. Rotating disk; 23. Extension block; 24. Sliding block; 25. Embedded ball; 26. Export rod; 27. Positioning fork; 28. Driving seat. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figures 1-7 , the present invention provides a technical solution: A minimally invasive traction device for chest and abdominal tumors includes a side fixing frame 1 and a traction wire 20. There are two sets of side fixing frames 1, and the two sets of side fixing frames 1 can be symmetrically clamped on both sides of the operating table. A traction tooling is slidably arranged on each side fixing frame 1. The traction tooling can be symmetrically introduced into the minimally invasive openings of the patient's chest and abdomen from both sides of the patient's body and can enlarge the surgical minimally invasive opening. An auxiliary traction component is arranged on one set of traction tooling, and the auxiliary traction component includes:

[0029] The introducing needle 11 is provided with an embedded ball 25 at the bottom. Both ends of the traction silk thread 20 can cross through the embedded ball 25 to form a closed loop at the bottom of the introducing needle 11, and the size of the closed loop can be adjusted.

[0030] The feeding component. The upper end of the introducing needle 11 can be embedded and clamped to the bottom of the feeding component, and the feeding component can push the introducing needle 11 to move linearly.

[0031] The adjusting component. The adjusting component is located between the feeding component and the pulling tooling. The adjusting component can adjust the inclination angle and direction of the introducing needle 11.

[0032] During operation, in the present invention, before the operation, the side fixing frame 1 is positioned at the two edges of the operation. The traction silk thread 20 crosses through the embedded ball 25 of the introducing needle 11. When the medical staff performs minimally invasive surgery on the patient's chest and abdomen, the position of the pulling tooling on the side fixing frame 1 can be adjusted so that the pulling tooling is symmetrically located on both sides of the minimally invasive wound. Then, through the pulling tooling, it is introduced into the minimally invasive wounds of the patient's chest and abdomen from both sides. By moving the two groups of pulling tooling away from each other, the minimally invasive wound of the patient is enlarged, and the wound is enlarged to increase the operation space and vision of the medical staff. Then, the medical staff adjusts the inclination angle and direction of the introducing needle 11 through the adjusting component. After adjustment, the adjusting component holds the introducing needle 11 for subsequent surgical operations, which can make the introducing needle 11 more stable during the operation and avoid the problems of easy shaking and dislocation when manually held, and reduce the physical consumption of the medical staff. The introducing needle 11 moves linearly through the feeding component, thereby driving the traction silk thread 20 close to the patient's tumor position. The feeding component can ensure that the introducing needle 11 moves along a straight line, increasing the accuracy of the entry path of the introducing needle 11, avoiding the problem of unstable manual holding and scratching the patient's tissue if misaligned, increasing the stability and continuity of the holding and movement of the introducing needle 11 during the operation, reducing the operation difficulty of the surgery, and saving the physical strength of the medical staff.

[0033] As a further solution of the present invention, the pulling tooling includes an inner sliding seat 15. A lower telescopic cylinder 17 is fixedly installed at one end of the inner sliding seat 15 outside the side fixing frame 1. An upper telescopic cylinder 18 is fixedly installed on the upper surface of the free end of the lower telescopic cylinder 17. A traction frame 6 is fixedly installed at the upper end of the upper telescopic cylinder 18. A bidirectional threaded rod is arranged in the traction frame 6. Both ends of the bidirectional threaded rod are threadedly connected with sliding blocks 24. An introducing and pulling rod 19 is fixedly installed on the sliding block 24. The ends of the two groups of introducing and pulling rods 19 away from the sliding blocks 24 are bent away from each other.

[0034] During operation, the position of the inner sliding seat 15 and the side fixing frame can be adjusted, so as to adjust the position of the guiding traction rod 19. The height of the guiding traction rod 19 can be adjusted by the upper telescopic cylinder 18. The lower telescopic cylinder 17 can adjust the distance between the guiding traction rod 19 and the traction frame 6. After the end of the guiding traction rod 19 is inserted into the patient's body, the lower telescopic rod cylinder 17 contracts to drive the guiding traction rod 19 to widen the patient's wound. The distance between the through grooves of the guiding traction rod 19 can be adjusted by rotating the bidirectional threaded rod. The larger the wound, the larger the distance between the guiding traction rods 19 should be.

[0035] As a further solution of the present invention, a lead-out rod 26 is slidably arranged inside the guiding needle 11. The lead-out rod 26 can be led out from the central position at the lower end of the guiding needle 11. A positioning fork 27 is fixedly installed at the lower end of the lead-out rod 26. The positioning fork 27 can be clamped on both sides of the traction silk thread 20. Magnetic induction blocks are arranged at the upper end of the lead-out rod 26 and inside the guiding needle 11, and the magnetic properties of the two groups of magnetic induction blocks are opposite. The magnetic size of the magnetic induction block inside the guiding needle 11 can be controlled by the circuit current.

[0036] During operation, in the present invention, the guiding needle 11 drives the traction silk thread 20 to enter the patient's body through the linear movement of the feeding component. Through cooperation with the adjusting component, the guiding needle 11 gradually approaches the tumor position to be cut. During the insertion process, both ends of the traction silk thread 20 are locked, and the positioning fork 27 is led out and clamped on the traction silk thread 20 through the magnetic induction block. Thus, the traction silk thread 20 forming a closed loop at the lower end of the guiding needle 11 is stretched on both sides of the lead-out rod 26 under the pushing action of the positioning fork 27, so as to prevent the traction silk thread 20 from being entangled and misaligned during the process of being inserted into the patient's body. After approaching the tumor position, the locking of both ends of the traction silk thread 20 is released. By adjusting the electric power of the magnetic induction block, the length of the lead-out rod 26 led out from the lower end of the guiding needle 11 can be controlled, so as to control the size of the closed loop formed by the traction silk thread 20 at the lower end of the guiding needle 11. The larger the lead-out rod 26 leads out beyond the closed loop, the more suitable it is for the tumor size.

[0037] As a further solution of the present invention, the feeding component includes a driving seat 28. A rotating frame 13 is rotatably installed on the driving seat 28. An electric telescopic rod 12 is fixedly installed at the middle position of the rotating frame 13. The lower end of the electric telescopic rod 12 is clamped with the upper end of the guiding needle 11. The electric telescopic rod 12 can stably push the guiding needle 11 to perform linear motion. A power supply is arranged inside the driving seat 28, and the power supply can provide power for the electromagnetic block and the electric telescopic rod 12 inside the guiding needle 11.

[0038] During operation, the rotation of the rotating frame 13 can drive the rotation of the guiding needle 11, so as to adjust the angle of the closed loop of the traction silk thread 20 at the bottom of the guiding needle 11. After determining the angle, the electric telescopic rod 12 pushes the guiding needle 11 to move linearly.

[0039] As a further solution of the present invention, the adjusting component includes a mounting base 5 which is fixedly installed on one side traction frame 6. A positioning disc 21 is fixedly installed on the side of the mounting base 5 close to the traction frame 6. A connecting shaft 16 is rotatably installed on the positioning disc 21 and the connecting shaft 16 is arranged on both sides of the positioning disc 21. Rotating discs 22 and extension frames 7 are respectively fixedly installed at both ends of the connecting shaft 16. An upper rotating shaft 8 is rotatably installed at the end of the extension frame 7 away from the connecting shaft 16. Upper connecting frames 9 are fixedly installed at both ends of the upper rotating shaft 8. The other ends of the upper connecting frames 9 are fixedly installed on both sides of the driving seat 28.

[0040] During operation, the extension frame 7 rotates on the positioning disc 21 through the connecting shaft 16, and the upper rotating shaft 8 drives the upper connecting frame 9 to rotate. A robotic arm is formed by the extension frame 7 and the upper connecting frame 9 to replace the medical staff holding the introducing needle 11, increasing the stability and continuity of holding the introducing needle 11.

[0041] As a further solution of the present invention, an extension block 23 is fixedly installed on the rotating disc 22. Fixed telescopic rods 10 are fixedly installed on the extension block 23, the upper connecting frame 9 and the rotating frame 13. The fixed telescopic rods 10 can lock the positions of the rotating disc 22 and the positioning disc 21, the position of the upper connecting frame 9 and the extension frame 7, and the position between the rotating frame 13 and the driving seat 28.

[0042] During operation, when operating, the medical staff drives the extension frame 7 to move by holding the extension block 23. When it is necessary to rotate the extension frame 7, the upper connecting frame 9 and the rotating frame 13, the fixed telescopic rods 10 need to be squeezed. By the contraction of the fixed telescopic rods 10, the locking effect on the extension frame 7, the upper connecting frame 9 and the rotating frame 13 disappears. After adjustment, the fixed telescopic rods 10 automatically extend to lock the positions of the extension frame 7, the upper connecting frame 9 and the rotating frame 13.

[0043] As a further solution of the present invention, mounting bases 5 are fixedly installed on both side traction frames 6. Winding wheels 14 are rotatably installed on the mounting bases 5. Both ends of the traction silk thread 20 are respectively wound on the winding wheels 14 on both sides. Locking nuts are arranged at both ends of the winding wheels 14.

[0044] During operation, the winding wheel 14 can control the size of the closed loop formed by the traction silk thread 20 at the bottom of the introducing needle 11. The winding wheel 14 can be locked by the locking nut of the winding wheel 14 to fix the size of the closed loop. When tumor cutting is required, the closed loop can be tightened by rotating the winding wheel 14 to cut the tumor.

[0045] As a further solution of the present invention, side positioning frames 4 are fixedly installed at both the upper and lower ends of the side of the inner sliding seat 15 away from the lower telescopic cylinder 17. The side positioning frames 4 extend to both the upper and lower sides of the side fixing frame 1. Positioning screws are threadedly connected to the side positioning frames 4. One end of the positioning screw can rotatably abut against the surface of the side fixing frame 1. Inner telescopic rods 3 are inclined at both ends of the side fixing frame 1. A lower positioning plate 2 is fixedly installed at the lower end of the inner telescopic rod 3. When the inner telescopic rod 3 contracts, the edge of the operating bed body can be clamped between the side fixing frame 1 and the lower positioning plate 2.

[0046] During operation, after the position of the inner sliding seat 15 is fixed, the positioning screw on the side positioning frame 4 can be rotated to abut against the side fixing frame 1 so as to lock the position of the inner sliding seat 15. When fixing the position of the side fixing frame 1, the side fixing frame 1 is located on the upper surface of the bed body, while the lower positioning plate 2 is located on the lower surface of the bed body. The side fixing frame 1 is clamped on the bed body by the contraction of the inner telescopic rod 3.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A pulling device for minimally invasive treatment of chest and abdominal tumors, comprising a side fixing frame (1) and a traction silk thread (20), characterized in that: There are two sets of the side fixing frames (1), and the two sets of side fixing frames (1) can be symmetrically clamped on both sides of the operating bed body. A pulling tooling is slidably arranged on each of the side fixing frames (1). The pulling tooling can be symmetrically introduced into the minimally invasive incisions in the chest and abdomen of the patient from both sides of the patient's body and can enlarge the surgical minimally invasive incisions. An auxiliary traction assembly is arranged on one set of the pulling tooling. The auxiliary traction assembly includes: An introducing needle (11). An embedded ball (25) is arranged at the bottom of the introducing needle (11). Both ends of the traction silk thread (20) can cross through the embedded ball (25) to form a closed loop at the bottom of the introducing needle (11), and the size of the closed loop can be adjusted. A material pushing assembly. The upper end of the introducing needle (11) can be embedded and clamped to the bottom of the material pushing assembly, and the material pushing assembly can push the introducing needle (11) to move linearly. An adjusting assembly. The adjusting assembly is located between the material pushing assembly and the pulling tooling, and the adjusting assembly can adjust the inclination angle and direction of the introducing needle (11).

2. The pulling device for minimally invasive treatment of chest and abdominal tumors according to claim 1, wherein: The pulling tooling includes an inner sliding seat (15). A lower telescopic cylinder (17) is fixedly installed at one end of the inner sliding seat (15) outside the side fixing frame (1). An upper telescopic cylinder (18) is fixedly installed on the upper surface of the free end of the lower telescopic cylinder (17). A traction frame (6) is fixedly installed at the upper end of the upper telescopic cylinder (18). A bidirectional threaded rod is arranged in the traction frame (6). Sliding blocks (24) are threadedly connected to both ends of the bidirectional threaded rod. An introducing and pulling rod (19) is fixedly installed on the sliding block (24). The ends of the two groups of introducing and pulling rods (19) away from the sliding blocks (24) are bent away from each other.

3. The minimally invasive traction device for chest and abdominal tumors according to claim 2, characterized in that: A guiding rod (26) is slidably arranged in the introducing needle (11). The guiding rod (26) can be led out from the central position at the lower end of the introducing needle (11). A positioning fork (27) is fixedly installed at the lower end of the guiding rod (26). The positioning fork (27) can be clamped on both sides of the traction silk thread (20). Magnetic induction blocks are arranged at the upper end of the guiding rod (26) and inside the introducing needle (11), and the magnetic polarities of the two magnetic induction blocks are opposite. The magnetic size of the magnetic induction block inside the introducing needle (11) can be controlled by the circuit current.

4. The minimally invasive retraction device for chest and abdominal tumors according to claim 3, characterized in that: The material pushing assembly includes a driving seat (28). A rotating frame (13) is rotatably installed on the driving seat (28). An electric telescopic rod (12) is fixedly installed at the middle position of the rotating frame (13). The lower end of the electric telescopic rod (12) is clamped to the upper end of the introducing needle (11). The electric telescopic rod (12) can stably push the introducing needle (11) to perform a linear motion. A power supply is arranged in the driving seat (28), and the power supply can supply power to the electromagnetic block and the electric telescopic rod (12) inside the introducing needle (11).

5. The pulling device for minimally invasive treatment of chest and abdominal tumors according to claim 4, wherein: The adjusting component includes a mounting seat (5), the mounting seat (5) is fixedly installed on one side of the traction frame (6), a positioning disk (21) is fixedly installed on one side of the mounting seat (5) close to the traction frame (6), a connecting shaft (16) is rotatably installed on the positioning disk (21) and the connecting shaft (16) is arranged on both sides of the positioning disk (21), a rotating disk (22) and an extension frame (7) are respectively fixedly installed at both ends of the connecting shaft (16), an upper rotating shaft (8) is rotatably installed at one end of the extension frame (7) away from the connecting shaft (16), upper connecting frames (9) are fixedly installed at both ends of the upper rotating shaft (8), and the other ends of the upper connecting frames (9) are fixedly installed on both sides of the driving seat (28).

6. The retraction device for minimally invasive treatment of chest and abdominal tumors according to claim 5, characterized in that: An extension block (23) is fixedly installed on the rotating disk (22), fixed telescopic rods (10) are fixedly installed on the extension block (23), the upper connecting frame (9) and the rotating frame (13), and the fixed telescopic rods (10) can lock the positions of the rotating disk (22) and the positioning disk (21), the position of the upper connecting frame (9) and the extension frame (7), and the position between the rotating frame (13) and the driving seat (28).

7. The pulling device for minimally invasive treatment of chest and abdominal tumors according to claim 6, characterized in that: Mounting seats (5) are fixedly installed on both sides of the traction frame (6), a winding wheel (14) is rotatably installed on the mounting seat (5), both ends of the traction wire (20) are respectively wound on the winding wheels (14) on both sides, and locking nuts are arranged at both ends of the winding wheel (14).

8. The minimally invasive traction device for chest and abdominal tumors according to claim 7, characterized in that: Side positioning frames (4) are fixedly installed at both the upper and lower ends on one side of the inner sliding seat (15) away from the lower telescopic cylinder (17), the side positioning frames (4) extend to both the upper and lower sides of the side fixed frame (1), positioning screws are threadedly connected to the side positioning frames (4), one end of the positioning screw can rotatably abut against the surface of the side fixed frame (1), inner telescopic rods (3) are inclinedly arranged at both ends of the side fixed frame (1), a lower positioning plate (2) is fixedly installed at the lower end of the inner telescopic rod (3), and when the inner telescopic rod (3) contracts, the edge of the operating bed body can be clamped between the side fixed frame (1) and the lower positioning plate (2).

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