Clinical sternum retractor for thymoma thoracotomy

Abstract

The utility model relates to the technical field of retractors, and discloses a clinical sternum retractor for a thymoma thoracotomy. The clinical sternum retractor for the thymoma thoracotomy comprises a retraction device, the movable plate is positioned below the retraction device and is used for mounting a retraction plate; a push rod located between the two movable plates rotates the limiting block by 90 degrees, meanwhile, the lifting plate is moved downwards, the lifting plate drives the baffle to move downwards to the top of the limiting block, the bottom of the baffle is tightly attached to the top of the limiting block at the moment, the limiting block is limited to the current position through friction force, the retracting plate can be fixed to the movable plates at the moment, and then the retracting device is operated. The two movable plates are gradually far away from each other at the chest opening of a patient, the opening is opened, the multiple assemblies are matched with one another to achieve rapid assembly and disassembly of the retractor plates, then the retractor plates in the corresponding forms are switched according to different expansion requirements, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of retractors, in particular to a sternal retractor for clinical thymoma thoracotomy. Background Art

[0002] Important organs of the human body, such as the lungs and heart, are located under the sternum, which supports and protects them to prevent external impacts from causing harm to the lungs and heart. When the heart is diseased and surgery is required, it is often necessary to open the sternum and then perform surgery on the exposed heart. A sternum retractor is often used to open the sternum.

[0003] First, when using the existing retractors, retractor plates of different sizes and shapes are selected according to different parts of the chest cavity. Since the retractor plates are often fixed to the retractors by fasteners, different retractors need to be replaced to expand the opening during complex operations, which will prolong the operation time and be time-consuming and labor-intensive, resulting in low practicality of the existing retractors.

[0004] Second, the existing retractor needs to rely on the movable plate to translate when adjusting the distance between the two movable plates. However, since the existing movable plate and the retractor are connected by gears and tooth grooves, the movable plate can only move at a fixed distance when moving, and the opening size cannot be fine-tuned according to different surgical requirements. Utility Model Content

[0005] The utility model aims to provide a sternal retractor for clinical thymoma thoracotomy to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a sternal retractor for clinical thymoma thoracotomy surgery, comprising a retractor; a movable plate located below the retractor, the movable plate being used to install the retractor plate; a push rod located between the two movable plates, the push rod being used to limit the position of the movable plate; a fixed block is welded at the bottom of the retractor, an adjusting ring is movably engaged with the outside of the fixed block, the bottom of the adjusting ring is bolted to the movable plate, a connecting groove is opened on the movable plate, a connecting block is engaged in the connecting groove, a retractor plate is welded on the side of the connecting block away from the movable plate, a side of the movable plate away from the retractor plate is tightly attached to the limiting block, a baffle is tightly attached to the top of the limiting block, a lifting plate is welded to the top of the baffle, a screw rod is movably passed through the retractor, a transfer block is passed through the screw rod, and the top of the push rod is welded to the bottom of the transfer block.

[0007] Preferably, a movable rod is welded to a side of the limit block close to the retraction plate, and an elastic member is bolted to an end of the movable rod away from the limit block.

[0008] Preferably, a through slot is formed on the connecting block, one end of the elastic member away from the movable rod passes through the through slot and is bolted in the retraction plate, and a communicating limiting slot is formed on the through slot.

[0009] Preferably, the movable rod is located in the connecting groove, a limiting ring is welded to the outside of the movable rod, and the limiting ring is movably embedded in the limiting groove.

[0010] Preferably, one end of the lifting plate close to the movable plate is bolted to a sliding block, a sliding groove is provided on one side of the movable plate close to the sliding block, and the sliding block is movably engaged in the sliding groove.

[0011] Preferably, two adapter blocks are provided, and the two adapter blocks are respectively connected to the screw rod in a forward thread connection and a reverse thread connection.

[0012] Preferably, two push rods are provided, the two push rods are symmetrically arranged, and the two push rods are bolted to a telescopic rod on one side away from each other, and the telescopic rod is bolted to the retraction device.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] First, embed the limit block into the connecting groove, and pull the limit block from the connecting groove in the direction away from the retraction plate. When the limit block is completely pulled out of the connecting groove, rotate the limit block ninety degrees and move the lifting plate downward at the same time. The lifting plate drives the baffle plate to move down to the top of the limit block. At this time, the bottom of the baffle plate is in close contact with the top of the limit block, and the limit block is limited to the current position by friction. At this time, the retraction plate can be fixed on the movable plate, and then the retraction device is operated to make the two movable plates gradually move away from the patient's chest opening to open the opening. Multiple components cooperate with each other to realize rapid loading and unloading of the retraction plate, and then switch the retraction plate of corresponding form according to different expansion needs, thereby improving the practicality of the device.

[0015] Second, the rotating screw drives the two adapter blocks connected to it with positive and negative threads to move, so that the adapter blocks move horizontally, driving the two push rods away from each other. The bottom ends of the push rods will push the two movable plates in the direction away from each other, causing the movable plates to rotate along the center of the fixed block, thereby changing the angle of the chest opening. The movable plates with changeable angles make it easy for medical staff to quickly fine-tune the size of the chest opening expansion according to different surgical needs during the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal components of the utility model;

[0018] Figure 3 This is a structural diagram of the movable plate of the utility model;

[0019] Figure 4 This is a structural diagram of the push rod of the utility model.

[0020] Among them: 1. retraction device; 2. movable plate; 3. fixed block; 4. adjusting ring; 5. retraction plate; 6. connecting block; 7. limiting groove; 8. connecting groove; 9. elastic member; 10. movable rod; 11. limiting block; 12. lifting plate; 13. baffle; 14. slider; 15. slide groove; 16. screw rod; 17. adapter block; 18. push rod; 19. telescopic rod; 20. limiting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A sternal retractor for clinical thymoma thoracotomy surgery comprises a retractor 1; a movable plate 2 located below the retractor 1, the movable plate 2 is used to install a retractor plate 5; a push rod 18 located between the two movable plates 2, the push rod 18 is used to limit the position of the movable plate 2; a fixed block 3 is welded at the bottom of the retractor 1, an adjusting ring 4 is movably embedded outside the fixed block 3, the bottom of the adjusting ring 4 is bolted to the movable plate 2, a connecting groove 8 is opened on the movable plate 2, a connecting block 6 is embedded in the connecting groove 8, a retractor plate 5 is welded on the side of the connecting block 6 away from the movable plate 2, a side of the movable plate 2 away from the retractor plate 5 is closely attached to a limiting block 11, a baffle 13 is closely attached to the top of the limiting block 11, a lifting plate 12 is welded to the top of the baffle 13, a screw rod 16 is movably penetrated on the retractor 1, a transfer block 17 is penetrated on the screw rod 16, and a push rod 18 is welded to the top of the baffle 13. The top of the rod 18 is welded to the bottom of the adapter block 17, and the limit block 11 is embedded in the connecting groove 8, and the limit block 11 is pulled from the connecting groove 8 in the direction away from the retraction plate 5. When the limit block 11 is completely pulled out of the connecting groove 8, the limit block 11 is rotated ninety degrees, and the lifting plate 12 is moved down at the same time. The lifting plate 12 drives the baffle plate 13 to move down to the top of the limit block 11. At this time, the bottom of the baffle plate 13 is tightly attached to the top of the limit block 11, and the limit block 11 is limited to the current position by friction. At this time, the retraction plate 5 can be fixed on the movable plate 2, and then the retraction device 1 is operated to make the two movable plates 2 gradually move away from the patient's chest opening to open the opening. Multiple components cooperate with each other to realize the quick loading and unloading of the retraction plate 5, and then switch the retraction plate 5 of the corresponding form according to different expansion needs, thereby improving the practicality of the device.

[0023] Specifically, a movable rod 10 is welded to one side of the limiting block 11 close to the retraction plate 5 , and an end of the movable rod 10 away from the limiting block 11 is bolted to the elastic member 9 .

[0024] Through the above technical solution, the limiting block 11 will remain parallel to the connecting block 6 in the original state, and the side of the limiting block 11 close to the distraction plate 5 is in close contact with the surface of the connecting block 6.

[0025] Specifically, a through slot is formed on the connecting block 6 , one end of the elastic member 9 away from the movable rod 10 passes through the through slot and is bolted in the distraction plate 5 , and a communicating limiting slot 7 is formed on the through slot.

[0026] Through the above technical solution, the elastic member 9 will be slightly twisted after the limit block 11 rotates, and when the limit block 11 abuts against the movable plate 2, the elastic member 9 will pull the limit block 11 through its own elasticity, so that the limit block 11 is tightly against the movable plate 2.

[0027] Specifically, the movable rod 10 is located in the connecting groove 8 , a limiting ring 20 is welded to the outside of the movable rod 10 , and the limiting ring 20 is movably embedded in the limiting groove 7 .

[0028] Through the above technical solution, the limiting ring 20 is used to prevent the movable rod 10 from completely sliding out of the connecting block 6.

[0029] Specifically, one end of the lifting plate 12 close to the movable plate 2 is bolted to a slider 14 , and a slide groove 15 is formed on one side of the movable plate 2 close to the slider 14 , and the slider 14 is movably engaged in the slide groove 15 .

[0030] Through the above technical solution, the slider 14 is made of rubber material, which can increase the friction between the lifting plate 12 and the slide groove 15, and prevent the stopped limit block 11 from automatically rotating back to the original position.

[0031] Specifically, two adapter blocks 17 are provided, and the two adapter blocks 17 are respectively connected to the screw rod 16 in a forward thread connection and a reverse thread connection.

[0032] Through the above technical solution, when the screw rod 16 rotates, it will drive the two adapter blocks 17 to move away from each other.

[0033] Specifically, two push rods 18 are provided, and the two push rods 18 are symmetrically arranged. The two push rods 18 are bolted to the telescopic rod 19 on the sides away from each other, and the telescopic rod 19 is bolted to the retraction device 1.

[0034] Through the above technical solution, after the push rod 18 moves, it will push the movable plates 2 on both sides away from each other, so that the two movable plates 2 can rotate outside the fixed block 3 through the adjustment ring 4 to adjust the angle of the movable plates 2.

[0035] When in use, the limit block 11 parallel to the connecting block 6 is embedded in the connecting groove 8, and the limit block 11 is pulled from the connecting groove 8 in the direction away from the pulling plate 5. At this time, the limit block 11 will pull the elastic member 9 through the movable rod 10. When the limit block 11 is completely pulled out of the connecting groove 8, the limit block 11 is rotated ninety degrees. At this time, the movable rod 10 will twist the elastic member 9 in the connecting block 6 and move the lifting plate 12 downward at the same time. The lifting plate 12 drives the baffle plate 13 to move down to the top of the limit block 11. At this time, the bottom of the baffle plate 13 is tightly attached to the top of the limit block 11, and the limit block 11 is limited by the friction between the slider 14 and the slide groove 15. The retraction plate 5 can be fixed on the movable plate 2 at the current position, and then the retraction device 1 can be operated to make the two movable plates 2 gradually move away from each other at the patient's chest opening to open the opening, and the screw rod 16 is rotated to make the screw rod 16 drive the two adapter blocks 17 connected to it in positive and negative threads to move. Since the angle position of the adapter block 17 is controlled by the telescopic rod 19, the adapter block 17 will move horizontally when the screw rod 16 rotates, driving the two push rods 18 away from each other. The bottom end of the push rod 18 will push the two movable plates 2 in the direction away from each other, so that the movable plate 2 rotates along the center of the fixed block 3, thereby changing the angle of retraction of the chest opening.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sternal retractor for clinical thymoma thoracotomy, characterized by: include: Retraction device (1); a movable plate (2) located below the retraction device (1), the movable plate (2) being used to install a retraction plate (5); a push rod (18) located between the two movable plates (2), the push rod (18) being used to limit the position of the movable plates (2); A fixed block (3) is welded to the bottom of the pulling device (1), an adjusting ring (4) is movably engaged with the outside of the fixed block (3), the bottom of the adjusting ring (4) is bolted to the movable plate (2), a connecting groove (8) is opened on the movable plate (2), a connecting block (6) is engaged in the connecting groove (8), a pulling plate (5) is welded to the side of the connecting block (6) away from the movable plate (2), a limiting block (11) is tightly attached to the side of the movable plate (2) away from the pulling plate (5), a baffle (13) is tightly attached to the top of the limiting block (11), a lifting plate (12) is welded to the top of the baffle (13), a screw rod (16) movably passes through the pulling device (1), a transfer block (17) passes through the screw rod (16), and the top of the push rod (18) is welded to the bottom of the transfer block (17).

2. A sternal retractor for clinical thymoma thoracotomy according to claim 1, characterized in that: A movable rod (10) is welded to one side of the limit block (11) close to the retraction plate (5), and an elastic member (9) is bolted to one end of the movable rod (10) away from the limit block (11).

3. A sternal retractor for clinical thymoma thoracotomy according to claim 2, characterized in that: The connecting block (6) is provided with a through slot, one end of the elastic member (9) away from the movable rod (10) passes through the through slot and is bolted to the retraction plate (5), and a communicating limiting slot (7) is provided on the through slot.

4. A sternal retractor for clinical thymoma thoracotomy according to claim 3, characterized in that: The movable rod (10) is located in the connecting groove (8), a limiting ring (20) is welded to the outside of the movable rod (10), and the limiting ring (20) is movably embedded in the limiting groove (7).

5. The sternal retractor for clinical thymoma thoracotomy according to claim 1, characterized in that: One end of the lifting plate (12) close to the movable plate (2) is bolted to a slider (14), and a slide groove (15) is provided on one side of the movable plate (2) close to the slider (14), and the slider (14) is movably engaged in the slide groove (15).

6. A sternal retractor for clinical thymoma thoracotomy according to claim 1, characterized in that: Two adapter blocks (17) are provided, and the two adapter blocks (17) are respectively connected to the screw rod (16) in a forward thread connection and a reverse thread connection.

7. A sternal retractor for clinical thymoma thoracotomy according to claim 1, characterized in that: Two push rods (18) are provided, the two push rods (18) are symmetrically arranged, and the two push rods (18) are bolted to a telescopic rod (19) on one side away from each other, and the telescopic rod (19) is bolted to the retraction device (1).

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