Surgical retractor

Abstract

The utility model discloses an operation drag hook, and particularly relates to the technical field of medical instruments, the operation drag hook comprises a connecting plate, the connecting plate is provided with a movable groove, two movable blocks are arranged in the movable groove, and a second adjusting assembly is arranged in the movable groove; a movable square rod is arranged at one end of each rotating rod, one end of each movable square rod penetrates through the corresponding rotating rod and extends to the other end of the corresponding rotating rod, a connecting rod is fixedly arranged at one end of each movable square rod, and two pulling hooks are fixedly arranged at the bottom end of each rotating rod and the bottom end of each connecting rod. According to the utility model, a plurality of pulling hooks capable of moving towards two sides are used for pulling a surgical incision, so that the surgical traction process is simpler and more convenient, and the condition that arms of medical personnel are uncomfortable due to long-time traction is avoided; and the distance and the angle between the multiple pulling hooks can be adjusted according to the actual situation, the applicability is higher, and the using effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a surgical retractor. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. With the changes of the times and society, the spectrum of orthopedic injuries has changed significantly. For example, diseases such as bone and joint tuberculosis, osteomyelitis, and poliomyelitis have decreased significantly, while injuries caused by traffic accidents have increased significantly. Surgical retractors are the most common medical devices in orthopedic surgery.

[0003] Existing surgical retractors usually consist of a hook body and a pulling arm. This type of surgical retractor requires a dedicated person to pull the pulling arm throughout the entire operation. The operation is very troublesome and it is difficult to control the stability of the traction. If the person applies uneven force, it is easy to cause the hook body to deviate and slide, thereby affecting the normal surgical traction and increasing the difficulty of the medical staff's work. Medical staff pulling the surgical retractor for a long time will also cause arm discomfort, numbness, etc. Utility Model Content

[0004] The utility model aims to provide a surgical retractor to solve the above-mentioned technical deficiencies.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surgical retractor, comprising:

[0006] A connecting plate, wherein a movable groove is formed on the connecting plate, two movable blocks are arranged inside the movable groove, and a second adjusting component is arranged inside the movable groove;

[0007] Two rotating rods, one end of the two rotating rods passes through two movable blocks respectively and is rotatably connected with the movable blocks, one end of the rotating rod is provided with a movable square rod, one end of the movable square rod passes through the rotating rod and extends to the other end of the rotating rod, one end of the movable square rod is fixedly provided with a connecting rod, the bottom end of the rotating rod and the bottom end of the connecting rod are both fixedly provided with two pulling hooks, and the other end of the movable square rod is provided with a first adjustment component.

[0008] Preferably, the first adjusting component includes a fixing ring fixedly arranged on the outside of one end of the rotating rod, a connecting block is fixedly arranged on the other end of the movable square rod, a threaded rod is rotatably connected to the bottom end of the outer side of the fixing ring, one end of the threaded rod passes through the connecting block and extends to the outside of the connecting block, and the threaded rod is threadedly connected to the connecting block to facilitate adjusting the distance between the rotating rod and the connecting rod.

[0009] Preferably, a rotating block is fixedly provided at one end of the threaded rod to facilitate driving the threaded rod to rotate.

[0010] Preferably, the second adjusting component includes a bidirectional screw rod arranged inside the movable groove, both ends of the bidirectional screw rod pass through two movable blocks respectively, the bidirectional screw rod and the two movable blocks are connected by threads and the threads are in opposite directions, both ends of the bidirectional screw rod are rotatably connected to the two walls inside the movable groove, one end of the bidirectional screw rod extends to one side of the connecting plate, and one end of the bidirectional screw rod is fixed with a turning handle to facilitate adjusting the distance between the two movable blocks.

[0011] Preferably, a movable limiting rod is provided at the top end of the outer side of the fixed ring, and a plurality of limiting grooves are opened on the side of the movable block close to the fixed ring, and the plurality of limiting grooves are all provided on the outer side of the rotating rod, and one end of the movable limiting rod passes through the fixed ring and extends into one of the limiting grooves, and a pulling block is fixedly provided at the other end of the movable limiting rod, and a reset spring is sleeved on the outer end of the movable limiting rod, and both ends of the reset spring are respectively fixedly connected to the inner side of the pulling block and the outer side of the fixed ring, so as to facilitate limiting the fixed ring and the rotating rod.

[0012] Preferably, a handle is fixedly provided on the top of the connecting plate to facilitate lifting the device.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] By using multiple pulling hooks that can be moved to both sides to pull the surgical incision, the surgical traction process is simpler and more convenient, and the arm discomfort of medical staff caused by long-term traction is avoided. The distance and angle between the multiple pulling hooks can be adjusted according to the actual situation, which has higher applicability and better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall rear view structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 A is a schematic diagram of the enlarged structure;

[0019] Figure 4 It is a schematic diagram of the connection structure of the rotating rod, the movable square rod and the connecting rod of the utility model;

[0020] Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of a connecting plate of the utility model.

[0021] Description of reference numerals:

[0022] 1. Connecting plate; 2. Movable groove; 3. Movable block; 4. Rotating rod; 5. Movable square rod; 6. Connecting rod; 7. Pull hook; 8. Fixing ring; 9. Connecting block; 10. Threaded rod; 11. Rotating block; 12. Bidirectional screw rod; 13. Turning handle; 14. Movable limit rod; 15. Limit groove; 16. Pull block; 17. Reset spring; 18. Handle. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model provides Figures 1 to 5 A surgical retractor is shown, comprising:

[0025] A connecting plate 1, a movable groove 2 is provided on the connecting plate 1, two movable blocks 3 are provided inside the movable groove 2, a second adjustment component is provided inside the movable groove 2, and a handle 18 is fixedly provided on the top of the connecting plate 1;

[0026] Two rotating rods 4, one end of the two rotating rods 4 passes through the two movable blocks 3 respectively and is rotatably connected with the movable blocks 3, one end of the rotating rod 4 is provided with a movable square rod 5, one end of the movable square rod 5 passes through the rotating rod 4 and extends to the other end of the rotating rod 4, one end of the movable square rod 5 is fixedly provided with a connecting rod 6, the bottom end of the rotating rod 4 and the bottom end of the connecting rod 6 are both fixedly provided with two pulling hooks 7, and the other end of the movable square rod 5 is provided with a first adjustment component.

[0027] The first adjustment component includes a fixed ring 8 fixed on the outside of one end of the rotating rod 4, a connecting block 9 is fixed on the other end of the movable square rod 5, a threaded rod 10 is rotatably connected to the bottom end of the outer side of the fixed ring 8, one end of the threaded rod 10 passes through the connecting block 9 and extends to the outside of the connecting block 9, the threaded rod 10 is threadedly connected to the connecting block 9, and a rotating block 11 is fixed on one end of the threaded rod 10.

[0028] The second adjustment component includes a bidirectional screw rod 12 arranged inside the movable groove 2, and both ends of the bidirectional screw rod 12 pass through the two movable blocks 3 respectively. The bidirectional screw rod 12 and the two movable blocks 3 are connected by threads and the thread directions are opposite. Both ends of the bidirectional screw rod 12 are rotatably connected to the two walls inside the movable groove 2. One end of the bidirectional screw rod 12 extends to one side of the connecting plate 1, and a turning handle 13 is fixed to one end of the bidirectional screw rod 12.

[0029] A movable limiting rod 14 is provided at the top end of the outer side of the fixed ring 8, and a plurality of limiting grooves 15 are opened on the side of the movable block 3 close to the fixed ring 8. The plurality of limiting grooves 15 are all provided on the outer side of the rotating rod 4. One end of the movable limiting rod 14 passes through the fixed ring 8 and extends into one of the limiting grooves 15. A pulling block 16 is fixedly provided at the other end of the movable limiting rod 14. A reset spring 17 is sleeved at the outer end of the movable limiting rod 14. The two ends of the reset spring 17 are respectively fixedly connected to the inner side of the pulling block 16 and the outer side of the fixed ring 8.

[0030] During orthopedic surgery, according to the length of the surgical incision, the rotating block 11 is rotated, and the rotating block 11 drives the threaded rod 10 to rotate. Since the threaded rod 10 is threadedly connected to the connecting block 9, the connecting block 9 drives the movable square rod 5 to move as the threaded rod 10 rotates, and the movable square rod 5 drives the connecting rod 6 and the pulling hook 7 at its bottom end to move. In this way, the distance between the rotating rod 4 and the multiple pulling hooks 7 on the connecting rod 6 can be adjusted, and thus it can be suitable for pulling surgical incisions of different lengths;

[0031] The bottom ends of the multiple pulling hooks 7 are placed on both sides of the surgical incision, and the pulling block 16 is pulled outward, and the pulling block 16 drives the movable limiting rod 14 to move outward and stretch the reset spring 17. When one end of the movable limiting rod 14 leaves the inside of a limiting groove 15, the movable limiting rod 14 and the fixing ring 8 are rotated, and the fixing ring 8 drives the rotating rod 4 to rotate, and the rotating rod 4 drives the movable square rod 5 and the connecting rod 6 to rotate, and the rotating rod 4 and the connecting rod 6 will drive the multiple pulling hooks 7 at their bottom ends to rotate, which can adjust the multiple pulling hooks 7. Angle, and thus can be suitable for different pulling conditions of the surgical incision. At this time, the handle 13 is turned, and the handle 13 drives the bidirectional screw rod 12 to rotate. Since the bidirectional screw rod 12 is threadedly connected to the movable block 3, the two movable blocks 3 move to both sides with the rotation of the bidirectional screw rod 12, and the movable block 3 drives the rotating rod 4, the movable square rod 5 and the connecting rod 6 to move to both sides. The rotating rod 4 and the connecting rod 6 drive multiple pulling hooks 7 to move to both sides. The pulling hooks 7 will pull the surgical incision outward, thereby facilitating doctors to perform orthopedic surgery.

[0032] The utility model uses a plurality of pulling hooks 7 that can be moved to both sides to pull the surgical incision, so that the surgical traction process is simpler and more convenient, and the medical staff's arm discomfort caused by long-term traction is avoided. Moreover, the distance and angle between the plurality of pulling hooks 7 can be adjusted according to the actual situation, so the applicability is higher and the use effect is better. This embodiment specifically solves the problem that in the actual use of the surgical retractor in the prior art, special personnel are required to pull the arm during the whole operation, which is very troublesome to operate and difficult to control the stability of traction. If the personnel apply uneven force, it is easy to cause the hook body to deviate and slide, thereby affecting the normal surgical traction and increasing the difficulty of the medical staff's work. The medical staff's long-term pulling of the surgical retractor will also cause the arm discomfort and numbness.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surgical retractor, characterized in that: include: A connecting plate (1), wherein a movable groove (2) is provided on the connecting plate (1), two movable blocks (3) are provided inside the movable groove (2), and a second adjustment component is provided inside the movable groove (2); Two rotating rods (4), one end of each of the two rotating rods (4) passes through two movable blocks (3) respectively and is rotatably connected to the movable blocks (3); one end of each of the rotating rods (4) is provided with a movable square rod (5); one end of each of the movable square rods (5) passes through the rotating rod (4) and extends to the other end of the rotating rod (4); one end of each of the movable square rods (5) is fixedly provided with a connecting rod (6); two pulling hooks (7) are fixedly provided at the bottom ends of the rotating rods (4) and the connecting rods (6); and the other end of each of the movable square rods (5) is provided with a first adjustment component.

2. A surgical retractor according to claim 1, characterized in that: The first adjustment component comprises a fixing ring (8) fixedly arranged on the outside of one end of the rotating rod (4); a connecting block (9) is fixedly arranged on the other end of the movable square rod (5); a threaded rod (10) is rotatably connected to the bottom end of the outer side of the fixing ring (8); one end of the threaded rod (10) passes through the connecting block (9) and extends to the outside of the connecting block (9); the threaded rod (10) and the connecting block (9) are threadedly connected.

3. A surgical retractor according to claim 2, characterized in that: A rotating block (11) is fixedly provided at one end of the threaded rod (10).

4. A surgical retractor according to claim 1, characterized in that: The second adjustment component comprises a bidirectional screw rod (12) arranged inside the movable groove (2), the two ends of the bidirectional screw rod (12) respectively pass through the two movable blocks (3), the bidirectional screw rod (12) and the two movable blocks (3) are connected by threads and the threads are in opposite directions, the two ends of the bidirectional screw rod (12) are rotatably connected to the two walls inside the movable groove (2), one end of the bidirectional screw rod (12) extends to one side of the connecting plate (1), and a turning handle (13) is fixedly provided at one end of the bidirectional screw rod (12).

5. A surgical retractor according to claim 2, characterized in that: A movable limiting rod (14) is provided at the top end of the outer side of the fixed ring (8); a plurality of limiting grooves (15) are provided on the side of the movable block (3) close to the fixed ring (8); the plurality of limiting grooves (15) are all provided on the outer side of the rotating rod (4); one end of the movable limiting rod (14) passes through the fixed ring (8) and extends into one of the limiting grooves (15); a pulling block (16) is fixedly provided at the other end of the movable limiting rod (14); a reset spring (17) is sleeved on the outer end of the movable limiting rod (14); and the two ends of the reset spring (17) are respectively fixedly connected to the inner side of the pulling block (16) and the outer side of the fixed ring (8).

6. A surgical retractor according to claim 1, characterized in that: A handle (18) is fixedly provided on the top end of the connecting plate (1).

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