A bone joint surgery distractor

Abstract

The utility model discloses a bone joint surgical dilator, which relates to the technical field of surgical instruments, and comprises two parallel slide rails, the bottom of the two slide rails is provided with a lifting assembly, the lifting assembly is lifted at the bone joint of the patient's limb, the top of the slide rail is provided with a T-slot, a group of sliders are slidably arranged in the T-slot, a first stud is fixed on the top of the slider, the first stud is slidably matched with the T-slot, and a locking block is threadedly connected on the first stud. After the support rod is inserted into the surgical incision, the position of the slider can be moved in the slide rail, so that the direction and position of the support rod are changed accordingly, and the incision is stretched as needed, the locking block can be rotated to lock the position of the slider and the slide rail, and the first knob is rotated to pull the second stud to lock the fixed rod and the sleeve, so that the support rod can maintain a stable state after stretching the incision, without obstructing the doctor's field of vision and operation, and the medical staff does not need to hold it, thereby reducing their energy and physical consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a bone and joint surgical distractor. Background Art

[0002] Bone joints are connected by capsules made of connective tissue between adjacent bones. The indirect connection between bones is called a bone joint. There is a cavity between the opposite bone surfaces, which contains a small amount of synovial fluid. It has a large range of motion. Each joint has an articular surface, a joint capsule, and a joint cavity. Some joints also have auxiliary structures such as ligaments, articular discs, and menisci. The reason why the human body can move freely is because of the structure of bone joints. Most bone joints not only provide the needs of human movement, but also protect bones from wear and tear through cartilage.

[0003] When a bone or joint is injured or diseased, surgery is required to treat the diseased or damaged tissue. During this process, the skin at the bone or joint needs to be cut and the incision needs to be opened so that the doctor can observe the bone or joint more clearly and perform treatment better. When using a common bone and joint surgical distraction device, medical staff need to hold the distraction structure for a long time and keep its position stable, which consumes a lot of physical energy for medical staff. In addition, the distraction device is generally located above the incision, which will hinder the doctor's surgical operation to a certain extent and interfere with the medical staff's vision, which is not conducive to the doctor's surgical operation. Utility Model Content

[0004] The purpose of the present application is to provide a bone and joint surgical distractor to solve the problem that the existing bone and joint surgical distractor device proposed in the above-mentioned background technology requires medical staff to hold the distraction structure for a long time and keep its position stable when in use, which consumes a lot of physical energy of the medical staff, and the distraction device is generally located above the incision, which will hinder the doctor's surgical operation to a certain extent, and will interfere with the medical staff's line of sight, which is not conducive to the doctor's surgical operation.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a bone joint surgical spreader, comprising two parallel sliding rails, a lifting assembly being provided at the bottom of the two sliding rails, the lifting assembly being lifted at the bone joint of the patient's limb, a T-slot being provided at the top of the sliding rail, a group of sliding blocks being slidably provided in the T-slot, a first stud being fixed at the top of the sliding block, the first stud being slidably matched with the T-slot, a locking block being threadedly connected on the first stud, the locking block being used to lock the position of the sliding block and the sliding rail, a fixing rod being fixed at the top of the first stud, a sleeve being slidably sleeved on the outside of the fixing rod, a second stud being threadedly connected on the sleeve, the second stud being used to lock the position of the fixing rod and the sleeve, a first knob being fixed on the outer end of the second stud, and a support rod being fixed on the outer wall of the sleeve.

[0006] Furthermore, the outer diameter of the first stud is 1.2 times the outer diameter of the fixing rod.

[0007] Furthermore, the cross section of the slider is a circular structure.

[0008] Furthermore, a reserved groove is provided on the peripheral side surface of the fixing rod, and a portion of the second stud located inside the sleeve is clearance-matched with an inner wall of the reserved groove.

[0009] Furthermore, the lifting assembly includes a guide plate, and lifting blocks are fixed on the left and right sides of the guide plate. The two slide rails are respectively fixed on the two lifting blocks. A drainage pipe is fixed through the lifting block. An L-shaped plate is fixed on the side of the lifting block away from the guide plate, and a third stud is threadedly connected to the L-shaped plate. A second knob is fixed to the end of the third stud away from the lifting block.

[0010] Furthermore, a plurality of lifting rods are fixed to the upper surfaces of the two lifting blocks, and the plurality of lifting rods are linearly arranged from front to back.

[0011] Furthermore, the cross section of the guide plate is a "V"-shaped structure, and an arc groove is provided on the upper surface of the lifting block.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, after the support rod is inserted into the surgical incision, the position of the slider can be moved in the slide rail, so that the direction and position of the support rod can be changed accordingly, and the incision can be opened as needed. The position of the slider and the slide rail can be locked by rotating the locking block, and the fixed rod and the sleeve can be locked by rotating the first knob to pull the second stud, so that the support rod can maintain a stable state after the incision is opened, without obstructing the doctor's field of vision and operation, and without the need for medical staff to hold it, thereby reducing their energy and physical consumption.

[0014] 2. In the utility model, the slide rail, the slider, the locking block, the sleeve, the second stud and the third stud can be completely disassembled and separated, making the device more convenient to clean, disinfect and sterilize, which not only ensures the comprehensiveness of cleaning, but also avoids the existence of cleaning dead corners.

[0015] 3. In the utility model, the patient's limbs are lifted by means of a plurality of lifting rods on the two lifting blocks, and rotating the second knob can drive the third stud to fix the lifting assembly on the operating table, making the device more stable when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 or the prior art description are briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a bone and joint surgery distractor in an embodiment of the present application;

[0018] Figure 2 This is a position relationship diagram of the slide rail, locking block, sleeve, and support rod in the embodiment of the present application;

[0019] Figure 3 This is a position relationship diagram of the slider, the first stud, the locking block, and the fixing rod in the embodiment of the present application;

[0020] Figure 4 This is a position relationship diagram of the first stud, the locking block, and the fixing rod in the embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the overall structure of the lifting assembly in the embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of the partial structure of the lifting assembly in the embodiment of the present application.

[0023] In the figure: 1. slide rail; 2. slider; 3. first stud; 4. locking block; 5. fixing rod; 6. sleeve; 7. second stud; 8. first knob; 9. support rod; 10. reserved groove; 11. guide plate; 12. lifting block; 13. drain pipe; 14. lifting rod; 15. L-shaped plate; 16. third stud; 17. second knob. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example: Reference Figure 1-6 The bone joint surgical distractor shown in the figure comprises two parallel slide rails 1, a lifting assembly is arranged at the bottom of the two slide rails 1, the lifting assembly is lifted at the bone joint of the patient's limb, a T-slot is opened at the top of the slide rail 1, a group of sliders 2 are slidably arranged in the T-slot, the cross section of the slider 2 is a circular structure, and a first stud 3 is fixed on the top of the slider 2, the first stud 3 is slidably matched with the T-slot, a locking block 4 is threadedly connected to the first stud 3, the locking block 4 is used to lock the position of the slider 2 and the slide rail 1, a fixing rod 5 is fixed to the top of the first stud 3, the outer diameter of the first stud 3 is 1.2 times the outer diameter of the fixing rod 5, a sleeve 6 is slidably sleeved on the outside of the fixing rod 5, a second stud 7 is threadedly connected to the sleeve 6, the second stud 7 is used to lock the position of the fixing rod 5 and the sleeve 6, a first knob 8 is fixed to the outer end of the second stud 7, and a support rod 9 is fixed to the outer wall of the sleeve 6;

[0026] After the support rod 9 is inserted into the surgical incision, the position of the slider 2 can be moved in the slide rail 1 so that the direction and position of the support rod 9 can be changed accordingly, and the incision can be opened as needed. The locking block 4 can be rotated to lock the position of the slider 2 and the slide rail 1. The first knob 8 is rotated to pull the second stud 7 to lock the fixing rod 5 and the sleeve 6, so that the support rod 9 can maintain a stable state after opening the incision, and does not need to be held by medical staff without obstructing the doctor's field of vision and operation.

[0027] Among them, a reserved groove 10 is opened on the peripheral side surface of the fixing rod 5, and the part of the second stud 7 located on the inner side of the sleeve 6 is matched with the inner wall clearance of the reserved groove 10. With the help of the mutual restriction between the second stud 7 and the reserved groove 10, the sleeve 6 can only slide longitudinally on the fixing rod 5. The opening of the reserved groove 10 makes it more effective for the second stud 7 to lock the fixing rod 5 and the sleeve 6.

[0028] The lifting assembly includes a guide plate 11, the cross section of the guide plate 11 is a "V"-shaped structure, and a lifting block 12 is fixed on the left and right sides of the guide plate 11. The two slide rails 1 are respectively fixed on the two lifting blocks 12, and a drainage pipe 13 is fixed through the lifting block 12, and an arc groove is provided on the upper surface of the lifting block 12. A plurality of lifting rods 14 are fixed on the upper surfaces of the two lifting blocks 12, and the plurality of lifting rods 14 are linearly arranged from front to back. An L-shaped plate 15 is fixed on the side of the lifting block 12 away from the guide plate 11, and a third stud 16 is threadedly connected to the L-shaped plate 15. A second knob 17 is fixed on the end of the third stud 16 away from the lifting block 12. The slide rail 1, the slider 2, the locking block 4, the sleeve 6, the second stud 7, and the third stud 16 can be completely disassembled and separated, so that the device is more convenient for cleaning, disinfection, and sterilization, which can not only ensure the comprehensiveness of cleaning, but also avoid the existence of cleaning dead corners;

[0029] The patient's limbs are lifted by means of multiple lifting rods 14 on the two lifting blocks 12. Turning the second knob 17 can drive the third stud 16 to fix the lifting assembly on the operating table, making the device more stable when used. An arc groove is provided on the lifting block 12 and the guide plate 11 is designed as a "V" shape structure, so that the surgical waste fluid can be better gathered at the bottom of the guide plate 11 and then discharged along the drain pipe 13 to avoid secondary infection of the patient by the waste fluid.

[0030] Working principle of this utility model:

[0031] When in use, the device is moved to a matching position according to the patient's bone and joint surgical position. The medical staff sequentially rotates the four second knobs 17 to pull the four third studs 16 to fix the device on the operating table. The medical staff moves the patient's bone and joint limbs to be operated on to the multiple lifting rods 14, so that the lifting assembly lifts the patient's bone and joint limbs. After the patient is anesthetized, the operation is performed. The doctor uses a scalpel to make an incision of a certain length at the patient's bone and joint. The medical staff inserts the support rod 9 into the incision, rotates the first knob 8 to drive the second stud 7 to fix the The fixed rod 5 is locked with the sleeve 6, so that the height of the support rod 9 is fixed. Then, the slide block 2 is moved along the slide rail 1 to adjust the position and angle of the support rod 9 so that the support rod 9 can open the patient's incision. After the incision is opened, the medical staff twists the locking block 4 to make it close to the slide rail 1 and then locks the slide block 2. In this way, the position of the support rod 9 is locked, and the doctor can perform the operation along the opened surgical incision. The waste liquid generated by the operation will flow into the guide plate 11 along the arc groove opened on the lifting block 12, and will be discharged along the two liquid discharge pipes 13 after being gathered at the bottom of the guide plate 11;

[0032] After the operation is completed, the device is removed, the slider 2 is removed from the slide rail 1, the second stud 7 is separated from the sleeve 6, the fixing rod 5 is separated from the sleeve 6, the locking block 4 is removed from the first stud 3, and the third stud 16 is removed from the L-shaped plate 15. The disassembled device can be cleaned, disinfected, and sterilized to make the device clean everywhere, and then it can be reassembled for continued use.

[0033] Obviously, the bone and joint surgery distractor of the utility model is made of materials that meet medical standards to ensure safety in use.

[0034] 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 bone joint surgery distractor, comprising two parallel slide rails (1), characterized in that: A lifting assembly is provided at the bottom of the two slide rails (1), and the lifting assembly is lifted at the bone joint of the patient's limb. A T-slot is provided at the top of the slide rail (1), and a group of sliders (2) are slidably provided in the T-slot. A first stud (3) is fixed to the top of the slider (2), and the first stud (3) is slidably matched with the T-slot. A locking block (4) is threadedly connected to the first stud (3), and the locking block (4) is used to lock the position of the slider (2) and the slide rail (1). A fixing rod (5) is fixed to the top of the first stud (3), and a sleeve (6) is slidably sleeved on the outside of the fixing rod (5). A second stud (7) is threadedly connected to the sleeve (6), and the second stud (7) is used to lock the position of the fixing rod (5) and the sleeve (6). A first knob (8) is fixed to the outer end of the second stud (7), and a support rod (9) is fixed to the outer wall of the sleeve (6).

2. A bone and joint surgery distractor according to claim 1, characterized in that: The outer diameter of the first stud (3) is 1.2 times the outer diameter of the fixing rod (5).

3. The bone and joint surgery distractor according to claim 1, characterized in that: The cross section of the slider (2) is a circular structure.

4. The bone and joint surgery distractor according to claim 1, characterized in that: A reserved groove (10) is provided on the peripheral side surface of the fixing rod (5), and a portion of the second stud (7) located inside the sleeve (6) is clearance-matched with an inner wall of the reserved groove (10).

5. The bone and joint surgery distractor according to claim 1, characterized in that: The lifting assembly comprises a guide plate (11), a lifting block (12) is fixed on the left and right sides of the guide plate (11), the two slide rails (1) are respectively fixed on the two lifting blocks (12), a drainage pipe (13) is fixed through the lifting block (12), an L-shaped plate (15) is fixed on the side of the lifting block (12) away from the guide plate (11), a third stud (16) is threadedly connected to the L-shaped plate (15), and a second knob (17) is fixed on the end of the third stud (16) away from the lifting block (12).

6. The bone and joint surgery distractor according to claim 5, characterized in that: A plurality of lifting rods (14) are fixed to the upper surfaces of the two lifting blocks (12), and the plurality of lifting rods (14) are linearly arranged from front to back.

7. The bone and joint surgery distractor according to claim 5, characterized in that: The cross section of the guide plate (11) is a "V"-shaped structure, and the upper surface of the lifting block (12) is provided with an arc-shaped groove.

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