Novel distraction forceps for orthopedic surgery

Abstract

The utility model relates to the technical field of medical instruments, and discloses novel opening forceps for orthopedic surgery, which comprise a first opening rod, a second opening rod is rotatably connected in the first opening rod, connecting frames are fixedly connected to the bottom of the second opening rod and the bottom of the first opening rod, and connecting blocks are slidably connected in the connecting frames. A plurality of clamping grooves are formed in the connecting block, a first button is slidably connected to the interior of the connecting frame, a second button is slidably connected to the interior of the connecting frame, clamping blocks are fixedly connected to the bottoms of the second button and the first button, and the clamping blocks are slidably connected to the interiors of the clamping grooves. According to the utility model, through the matching between the connecting frame and the clamping block, the angle self-locking effect of the distraction clamp is realized, the problem that the clamp body cannot be quickly and effectively fixed at the first time when the distraction clamp is distraction to a required position is solved, and the stability of the distraction clamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a novel distraction forceps for orthopedic surgery. Background Art

[0002] Orthopedic surgery is a medical procedure that is specifically used to treat diseases, injuries or deformities of the skeletal system. These surgeries involve repairing fractures, joint replacements, spinal surgery, soft tissue reconstruction, ligament repair, tendon repair, etc. In spinal fixation surgery, the diseased vertebra needs to be pressurized or repositioned. Usually, a distraction forceps is used to correct the diseased vertebra with the help of the adjacent normal vertebra as a fulcrum. The distraction forceps can stabilize the surrounding tissues to prevent them from moving or collapsing, thereby providing a clear field of view and operating space.

[0003] Traditional spreader forceps usually consist of a handle, a spreader rod, and a spreader claw. The handle part makes it comfortable for the human hand to hold and easy to operate. Connected to the handle is the spreader rod, which is responsible for transmitting force and stabilizing the surgical field. At the end of the spreader forceps, there is usually a pair of spreader claws, which are the parts that actually contact and spread the tissue. These claws are designed with special shapes and surface treatments to ensure good grip and tissue retention, and also contribute to the precision and safety of the operation;

[0004] However, when using traditional spreader clamps, it is impossible to quickly and effectively fix the spreader rod at the desired angle in the first place when the spreader clamps are opened to the desired position. This requires medical staff to manually hold or use other tools to fix the spreader clamp to ensure stability and accuracy during the operation. During this process, medical staff will be distracted to maintain the position of the spreader clamp, which increases the operation time and introduces additional operational risks. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a new type of distraction forceps for orthopedic surgery, aiming to improve the problem in the prior art that when the distraction forceps are distracted to the desired position, the forceps body cannot be quickly and effectively fixed in the first time, resulting in the need for medical staff to divert their attention to maintain the position of the distraction forceps.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel orthopedic surgical distraction forceps comprises a first distraction rod, wherein the first distraction rod is rotatably connected to the second distraction rod, the second distraction rod and the first distraction rod are both fixedly connected to a connecting frame at the bottom, the connecting frame is slidably connected to a connecting block, a plurality of slots are provided inside the connecting block, a first button is slidably connected to the connecting frame, a second button is slidably connected to the connecting frame, the second button and the first button are both fixedly connected to the bottom with a block, the block is slidably connected to the inside of the slot, a connecting column is fixedly connected to the connecting frame, the first button and the second button are both slidably connected to the outer wall of the connecting column, the outer wall of the connecting column is sleeved with a first spring, one end of the first spring is fixedly connected to one side of the first button, the other end of the first spring is fixedly connected to one side of the second button, and the first distraction rod is slidably connected to a connecting assembly;

[0008] As a further description of the above technical solution:

[0009] The connecting assembly comprises a supporting column, the outer wall of the supporting column is slidably connected to the inside of the first spreading rod, and the inside of the second spreading rod is slidably connected to the outer wall of the supporting column;

[0010] As a further description of the above technical solution:

[0011] A second spring is sleeved on the outer wall of the support column, one end of the second spring is fixedly connected to the inner wall of the first opening rod, and the other end of the second spring is fixedly connected to the inner wall of the second opening rod;

[0012] As a further description of the above technical solution:

[0013] A fixing frame is fixedly connected inside the first opening rod and the second opening rod, and a plurality of limiting grooves are provided inside the fixing frame;

[0014] As a further description of the above technical solution:

[0015] A handle is slidably connected inside the fixed frame, and a fixing column is fixedly connected inside the handle;

[0016] As a further description of the above technical solution:

[0017] The outer wall of the fixed column is rotatably connected to a rotating ring, and the outer wall of the rotating ring is rotatably connected to a connecting rod;

[0018] As a further description of the above technical solution:

[0019] One side of the connecting rod is rotatably connected to a connecting ring, and the interior of the connecting ring is fixedly connected to a limiting column;

[0020] As a further description of the above technical solution:

[0021] The limiting column is slidably connected to the inside of the limiting groove, and a stop rod is rotatably connected to one side of the handle.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the self-locking angle of the opening forceps is achieved through the cooperation between the connecting frame and the connecting block, the card slot, the first button, the second button, the connecting column, the first spring and the card block, which solves the problem that when the opening forceps are opened to the desired position, the clamp body cannot be quickly and effectively fixed in the first time, causing the medical staff to need to divert their attention to maintain the position of the opening forceps, thereby improving the stability of the opening forceps.

[0024] 2. In the utility model, the length of the spreader can be adjusted according to the needs through the cooperation between the fixed frame and the limit groove, the handle, the fixed column, the rotating ring, the connecting rod, the connecting ring and the limit column. This solves the problem that when surgery is required at different depths or angles, the length of the spreader cannot be adjusted, which makes it inconvenient for the doctor to operate and affects the accuracy and success rate of the surgery, thereby improving the flexibility of the spreader. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the novel orthopedic surgical distraction forceps proposed by the utility model;

[0026] Figure 2 A schematic diagram of the bottom structure of the second spreading rod of the novel spreading forceps for orthopedic surgery proposed by the utility model;

[0027] Figure 3 A cross-sectional schematic diagram of a connection frame of a novel orthopedic surgery distraction forceps proposed by the utility model;

[0028] Figure 4 A cross-sectional schematic diagram of a connecting block of a novel orthopedic surgery distraction forceps proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the fixing frame of the novel orthopedic surgery distraction forceps proposed by the utility model;

[0030] Figure 6 The utility model is a schematic diagram of the side wall structure of the handle of the novel orthopedic surgery distraction forceps.

[0031] Legend:

[0032] 1. First spreading rod; 2. Second spreading rod; 3. Connecting frame; 4. Connecting block; 5. Slot; 6. First button; 7. Second button; 8. Connecting column; 9. First spring; 10. Slot; 11. Support column; 12. Second spring; 13. Fixed frame; 14. Limiting slot; 15. Handle; 16. Fixed column; 17. Rotating ring; 18. Connecting rod; 19. Connecting ring; 20. Limiting column; 21. Stop rod. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figure 2-Figure 4 The utility model provides an embodiment: a novel orthopedic surgical distraction forceps, comprising a first distraction rod 1, a second distraction rod 2 is rotatably connected inside the first distraction rod 1, a connecting frame 3 is fixedly connected to the bottom of the second distraction rod 2 and the first distraction rod 1, a connecting block 4 is slidably connected inside the connecting frame 3, a plurality of card slots 5 are provided inside the connecting block 4, a first button 6 is slidably connected inside the connecting frame 3, a second button 7 is slidably connected inside the connecting frame 3, a card block 10 is fixedly connected to the bottom of the second button 7 and the first button 6, the card block 10 is slidably connected inside the card slot 5, a connecting column 8 is fixedly connected inside the connecting frame 3, the first button 6 and the second The buttons 7 are all slidably connected to the outer wall of the connecting column 8, and the outer wall of the connecting column 8 is sleeved with a first spring 9, one end of the first spring 9 is fixedly connected to one side of the first button 6, and the other end of the first spring 9 is fixedly connected to one side of the second button 7. The first expansion rod 1 is slidably connected with a connecting component, and the connecting component includes a support column 11, the outer wall of the support column 11 is slidably connected to the inside of the first expansion rod 1, and the second expansion rod 2 is slidably connected to the outer wall of the support column 11, and the outer wall of the support column 11 is sleeved with a second spring 12, one end of the second spring 12 is fixedly connected to the inner wall of the first expansion rod 1, and the other end of the second spring 12 is fixedly connected to the inner wall of the second expansion rod 2.

[0035] Specifically, when using the spreading pliers, first press the first spreading rod 1 and the second spreading rod 2 to spread the pliers claws. During this process, the first spreading rod 1 and the second spreading rod 2 are forced to drive the bottom connecting frame 3 to slide on the outer wall of the connecting block 4. At the same time, the connecting frame 3 is forced to drive the first button 6 and the second button 7 connected inside to move, and these two buttons are forced to drive the bottom connected block 10 to move. During this process, the block 10 is blocked by the connecting block 4, but because one side of the block 10 is designed as a slope, the block 10 is forced to drive the second button 7 and the first button 6 on the top to slide into the inside of the connecting frame 3. During this process, the first button 6 and the second button 7 are forced to squeeze the first spring 9 on one side to contract, so that the block 10 can move smoothly. When the block 10 moves to the desired position, it rebounds due to the unloading force of the first spring 9, thereby driving the first button 6 and the second button 7 to reset. In this way, the card block 10 is inserted into one of the card slots 5 opened inside the connecting block 4, thereby fixing the jaws at a desired angle position, ensuring that the spreading pliers can be firmly fixed at a specific angle position when needed. When the spreading pliers need to be folded, only the first button 6 and the second button 7 need to be pressed.

[0036] Reference Figure 1 , Figure 5 and Figure 6 The first spreading rod 1 and the second spreading rod 2 are both fixedly connected with a fixed frame 13, a handle 15 is slidably connected inside the fixed frame 13, a fixed column 16 is fixedly connected inside the handle 15, a rotating ring 17 is rotatably connected to the outer wall of the fixed column 16, a connecting rod 18 is rotatably connected to the outer wall of the rotating ring 17, and a connecting ring 19 is rotatably connected to one side of the connecting rod 18.

[0037] Specifically, when the length of the handle 15 needs to be adjusted, the handle 15 is first pulled. In this process, the handle 15 is forced to slide inside the fixed frame 13, and at the same time, the fixed column 16 connected to one side is driven to move, and then the fixed column 16 is driven to drive the rotating ring 17 of the outer wall to move, and the rotating ring 17 is driven to drive the connecting rod 18 of the outer wall to move, and the connecting rod 18 is driven to drive the connecting ring 19 connected to one side to move, so as to achieve the effect of translation.

[0038] Reference Figure 5 and Figure 6 A plurality of limit grooves 14 are provided inside the fixed frame 13 , a limit column 20 is fixedly connected inside the connecting ring 19 , the limit column 20 is slidably connected inside the limit groove 14 , and a stop rod 21 is rotatably connected to one side of the handle 15 .

[0039] Specifically, the connecting ring 19 is subjected to force to drive the internally connected limiting column 20 to move inside the limiting groove 14. Through the limitation of the limiting groove 14, the limiting column 20 drives the connecting ring 19 to rotate. In this way, the connecting ring 19 drives the connecting rod 18 and the rotating ring 17 to rotate on the outer wall of the fixed column 16, thereby sliding the limiting column 20 out of the limiting groove 14. When adjusted to the required length, the limiting column 20 is inserted into another limiting groove 14 through the rotation of the rotating ring 17 and the connecting rod 18, thereby fixing the handle 15, thereby achieving the effect that the handle 15 can be adjusted in length according to needs.

[0040] Working principle: When using the spreading pliers, first press the first spreading rod 1 and the second spreading rod 2 to spread the pliers claws. In this process, the first spreading rod 1 and the second spreading rod 2 will be forced to drive the bottom connecting frame 3 to slide on the outer wall of the connecting block 4, and the connecting frame 3 is forced to drive the first button 6 and the second button 7 connected inside to move, and the first button 6 and the second button 7 are forced to drive the bottom connected block 10 to move, and at the same time, the block 10 is blocked by the connecting block 4. Since one side of the block 10 is designed as an inclined surface, the block 10 is forced to drive the second button 7 and the first button 6 on the top to slide into the inside of the connecting frame 3, and the first button 6 and the second button 7 are forced to squeeze the first spring 9 on one side to contract, so that the block 10 moves smoothly. When it moves to the desired position, the first spring 9 unloads the force and rebounds, thereby driving the first button 6 and the second button 7 to reset, so that the block 10 is stuck in one of the slots 5 opened in the connecting block 4, thereby fixing the pliers claws at the desired angle position. When the spreading pliers need to be retracted, by pressing the first button 6 and The second button 7 is just needed, so as to achieve the effect of the self-locking angle of the open pliers. When it is necessary to adjust the length of the handle 15, the handle 15 is first pulled, and the handle 15 is forced to slide inside the fixed frame 13. At the same time, the handle 15 is also forced to drive the fixed column 16 connected on one side to move, and the fixed column 16 is forced to drive the rotating ring 17 of the outer wall to move, and the rotating ring 17 is forced to drive the connecting rod 18 of the outer wall to move, and the connecting rod 18 is forced to drive the connecting ring 19 connected on one side to move, and the connecting ring 19 is forced to drive the internal connection The limiting column 20 moves inside the limiting groove 14, and through the limiting of the limiting groove 14, the limiting column 20 drives the connecting ring 19 to rotate, and the connecting ring 19 drives the connecting rod 18 and the rotating ring 17 to rotate on the outer wall of the fixed column 16, so that the limiting column 20 slides out of the limiting groove 14. When adjusted to the required length, the rotating ring 17 and the connecting rod 18 rotate, so that the limiting column 20 is stuck in another limiting groove 14, thereby fixing the handle 15, achieving the effect that the handle 15 can be adjusted in length according to needs.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel orthopedic surgical distraction forceps, comprising a first distraction rod (1), characterized in that: The first opening rod (1) is rotatably connected to the second opening rod (2), the second opening rod (2) and the first opening rod (1) are both fixedly connected to a connection frame (3) at the bottom, the connection frame (3) is slidably connected to a connection block (4), a plurality of slots (5) are provided in the connection block (4), the connection frame (3) is slidably connected to a first button (6), the connection frame (3) is slidably connected to a second button (7), the second button (7) and the first button (6) are both fixedly connected to the bottom with a card block (10) The card block (10) is slidably connected to the inside of the card slot (5); a connecting column (8) is fixedly connected to the inside of the connecting frame (3); the first button (6) and the second button (7) are both slidably connected to the outer wall of the connecting column (8); a first spring (9) is sleeved on the outer wall of the connecting column (8); one end of the first spring (9) is fixedly connected to one side of the first button (6); the other end of the first spring (9) is fixedly connected to one side of the second button (7); and a connecting component is slidably connected to the inside of the first opening rod (1).

2. The novel orthopedic surgical distraction forceps according to claim 1 is characterized by: The connection assembly comprises a support column (11), the outer wall of the support column (11) is slidably connected to the inside of the first spreading rod (1), and the inside of the second spreading rod (2) is slidably connected to the outer wall of the support column (11).

3. The novel orthopedic surgical distraction forceps according to claim 2 is characterized by: A second spring (12) is sleeved on the outer wall of the support column (11), one end of the second spring (12) is fixedly connected to the inner wall of the first spreading rod (1), and the other end of the second spring (12) is fixedly connected to the inner wall of the second spreading rod (2).

4. The novel orthopedic surgical distraction forceps according to claim 1 is characterized by: The first spreading rod (1) and the second spreading rod (2) are both fixedly connected to a fixing frame (13) inside, and a plurality of limiting grooves (14) are provided inside the fixing frame (13).

5. The novel orthopedic surgical distraction forceps according to claim 4 is characterized by: A handle (15) is slidably connected inside the fixed frame (13), and a fixing column (16) is fixedly connected inside the handle (15).

6. The novel orthopedic surgical distraction forceps according to claim 5, characterized in that: The outer wall of the fixed column (16) is rotatably connected to a rotating ring (17), and the outer wall of the rotating ring (17) is rotatably connected to a connecting rod (18).

7. The novel orthopedic surgical distraction forceps according to claim 6, characterized in that: One side of the connecting rod (18) is rotatably connected to a connecting ring (19), and a limiting column (20) is fixedly connected inside the connecting ring (19).

8. The novel orthopedic surgical distraction forceps according to claim 7, characterized in that: The limiting column (20) is slidably connected inside the limiting groove (14), and one side of the handle (15) is rotatably connected to a blocking rod (21).

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