Hip joint retractor

Abstract

The utility model discloses a hip joint retractor, and belongs to the technical field of medical instruments. Comprising a main supporting frame, a position-adjustable main adjusting rod is arranged on the main supporting frame, a first side adjusting rod and a second side adjusting rod which correspond to each other and are adjustable in position are arranged on the main adjusting rod, a plurality of position-adjustable blade mounting rods are arranged on the first side adjusting rod, and blade fixing seats are arranged on the blade mounting rods. A traction blade is detachably arranged on the blade fixing seat, and a plurality of tether clamping heads are arranged on the second side adjusting rod and used for fixing the traction blade to the second side adjusting rod through tethers. According to the hip joint retractor, all the rod bodies are flexibly connected through the adjusting heads, multi-directional adjustment of the main adjusting rod, the side adjusting rods and the blade installation rod in the X direction, the Y direction and the Z direction is achieved, flexible adjustment of the position of a traction blade is achieved, and the application range of the retractor is widened.

Description

Technical Field

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

[0002] Hip retractor is a medical device used to retract the hip joint during hip surgery so that the doctor can better perform the operation. It usually consists of a specially designed frame and a set of adjustable clamps that can help fix the patient's leg and keep the hip joint in the correct position to prevent joint displacement or damage.

[0003] Common hip retractors include manual retractors and mechanical retractors. Manual retractors mainly achieve hip retraction through manual operation, but this method not only requires a large number of surgeons, has high labor intensity and is difficult to control, but also reduces the convenience and efficiency of surgical operations; mechanical retractors achieve hip retraction through simple mechanical structures, such as spiral tension devices, lever devices, etc., which reduces the number of surgeons and has the characteristics of stable control, but existing mechanical retractors are relatively complex in structure and have low flexibility, which affects surgical efficiency.

[0004] To this end, we have designed and developed a new type of hip retractor. Through scientific and reasonable design, we have optimized the complex structure of the traditional retractor, so that the retractor blades on the retractor can be flexibly adjusted, thereby improving the flexibility of the retractor, making it not only suitable for hip joint surgery, but also for knee joint and shoulder surgery, greatly improving the scope of application. Utility Model Content

[0005] The purpose of the utility model is to provide a hip retractor to solve the problems raised in the above background technology.

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

[0007] A hip retractor comprises a main support frame, on which is provided a main adjustment rod with adjustable position, on which is provided two corresponding first side adjustment rods and a second side adjustment rod with adjustable position, on which is provided a plurality of blade mounting rods with adjustable position, on which is provided a blade fixing seat, on which is provided a retracting blade detachably, and on which is provided a plurality of tether clips for fixing the retracting blade on the second side adjustment rod via tethers.

[0008] As a further preferred solution of the utility model: the main support frame and the main adjustment rod, the main adjustment rod and the first side adjustment rod and the second side adjustment rod, and the first side adjustment rod and the blade mounting rod are all detachably connected through the adjustment head.

[0009] As a further preferred solution of the utility model: the adjusting head includes a central axis and two elastic clamping rings for being mounted on the rod body, one end of the two elastic clamping rings is movably mounted on the central axis, a retaining ring movably mounted on the central axis is arranged between the two elastic clamping rings, a baffle is fixedly arranged at the lower end of the central axis, and an eccentric handle is rotatably arranged at the upper end of the central axis.

[0010] As a further preferred solution of the utility model: the blade fixing seat includes a seat body fixedly arranged at the end of the blade mounting rod, a blade fixing groove is opened on the upper side of the seat body, a pressure rod is threadedly connected to the top of the blade fixing groove, and the upper end of the pressure rod is fixedly connected to the second knob on the top of the seat body.

[0011] As a further preferred solution of the utility model: an opening is provided on the outer side of the tether clamp, and corresponding side notches are provided on both sides of the opening.

[0012] As a further preferred solution of the utility model: a tether opening is provided at the tail of the retractor blade.

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

[0014] The hip joint retractor flexibly connects the rods through the adjustment head, realizes multi-directional adjustment of the main adjustment rod, the side adjustment rod and the blade installation rod in different directions of X, Y and Z, realizes flexible adjustment of the position of the retractor blade, and improves the application range of the retractor;

[0015] The blade fixing seat is provided to facilitate the disassembly and replacement of the retractor blade, and to facilitate the replacement of different types of blades according to needs to meet the needs of different surgeries;

[0016] By designing a tether clip and opening a corresponding tether opening on the retractor blade, the blade position can be adjusted at any time according to surgical requirements, and the retractor blade can be flexibly and quickly fixed to the second side adjustment rod through the tether. After installation, the blade can also be slightly adjusted in movement when necessary, thereby improving the flexibility of the retractor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the hip retractor of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of the structure at the middle adjustment head;

[0019] Figure 3 for Figure 1 An enlarged schematic diagram of the structure at the middle blade fixing seat;

[0020] Figure 4The three-dimensional structure of the hip retractor of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 5 The structure diagram of the adjustment head of the hip retractor of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 6 The structure diagram of the adjustment head of the hip retractor of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 7 It is a structural schematic diagram of the tether clip of the hip retractor of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the blade fixing seat of the hip retractor of the utility model;

[0025] Fig. 9 The utility model is a schematic diagram of the structure of the retractor blade of the hip retractor.

[0026] In the figure: 1. main support frame; 2. main adjustment rod; 3. first side adjustment rod; 4. second side adjustment rod; 5. blade mounting rod; 6. pull-out blade; 7. adjustment head; 8. tether clamp; 9. blade fixing seat; 10. center axis; 11. handle; 12. elastic clamp ring; 13. retaining ring; 14. baffle; 15. first knob; 16. side notch; 17. opening; 18. seat; 19. second knob; 20. pressure rod; 21. tether opening; 22. blade fixing groove; 23. protruding pressure plate. DETAILED DESCRIPTION

[0027] 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. Example

[0028] See also Figure 1-9 The present embodiment provides a hip retractor, including a main support frame 1, on which a main adjustment rod 2 with adjustable positions is arranged, on which two corresponding first side adjustment rods 3 and second side adjustment rods 4 with adjustable positions are arranged, and on which a plurality of blade mounting rods 5 with adjustable positions are arranged, and specifically, the main support frame 1 and the main adjustment rod 2, the main adjustment rod 2 and the first side adjustment rod 3 and the second side adjustment rod 4, and the first side adjustment rod 3 and the blade mounting rod 5 are all detachably connected through an adjustment head 7. Figure 2 as well as Figure 5As shown, the adjustment head 7 includes a central shaft 10 and two elastic collars 12 for being mounted on the rod body. One end of the two elastic collars 12 is movably mounted on the central shaft 10. A retaining ring 13 movably mounted on the central shaft 10 is provided between the two elastic collars 12. A retaining plate 14 is fixedly provided at the lower end of the central shaft 10. An eccentric handle 11 is rotatably provided at the upper end of the central shaft 10. It should be noted that the elastic collar 12 is a common structure of mechanical structure and can be obtained by purchase. The elastic collar 12 is an open collar, and a protruding pressure plate 23 is provided on the opening. The elastic collar 12 is mounted on the central shaft 10 through the protruding pressure plate 23. When the handle 11 is pressed down, due to the eccentric design of the handle 11, the lower end of the handle 11 will press the protruding pressure plate 23 below downward, so that the two elastic collars 12 press the corresponding rod body, and the rod body can be fixed. The adjustment head 7 can be obtained by custom purchase, and this application will not repeat it.

[0029] In addition, in practical applications, such as Figure 6 As shown, the handle 11 on the adjusting head 7 can also be replaced by a first knob 15 threadedly connected to the central axis 10. By tightening the first knob 15 downward, the two elastic clamping rings 12 can be compressed. This design is a conventional structural replacement familiar to those skilled in the art and will not be described in detail in this application.

[0030] A blade fixing seat 9 is arranged on the blade mounting rod 5, and a retracting blade 6 is detachably arranged on the blade fixing seat 9. Specifically, as shown in FIG. Figure 3 as well as Figure 8 As shown, the blade fixing seat 9 includes a seat body 18 fixedly arranged at the end of the blade mounting rod 5, and a blade fixing groove 22 is opened on the side of the upper end of the seat body 18. A pressure rod 20 is threadedly connected to the top of the blade fixing groove 22. The upper end of the pressure rod 20 is fixedly connected to the second knob 19 on the top of the seat body 18. The retracted blade 6 is placed in the blade fixing groove 22, and the second knob 19 is tightened so that the pressure rod 20 presses the retracted blade 6, so that the retracted blade 6 can be easily fixed on the blade mounting rod 5.

[0031] At the same time, in order to further improve the flexibility of the retractor blade 6, a plurality of tether clips 8 are provided on the second side adjustment rod 4, which are used to fix the retractor blade 6 on the second side adjustment rod 4 through tethers. Figure 7 As shown, an opening 17 is provided on the outside of the tether clamp 8, and corresponding side notches 16 are provided on both sides of the opening 17. The design of the opening 17 and the side notches 16 can better fix the tether. At the same time, in order to facilitate the fixed connection between the tether and the retractor blade 6, as shown in FIG. Fig. 9 As shown, a tether opening 21 is provided at the tail of the retractor blade 6. The design of fixing the retractor blade 6 by a tether can facilitate fine adjustment of the position of the retractor blade 6 according to needs in subsequent clinical operations, thereby improving the flexibility of the retractor.

[0032] In practical applications, a hip joint retractor generally requires four retractor blades 6. In this embodiment, two blade mounting rods 5 are preferably provided on the first side adjustment rod 3, and each blade mounting rod 5 is provided with a retractor blade 6. The model of the retractor blade 6 is not specifically limited in this application, and can be flexibly selected according to needs; the number of tether clamps 8 designed on the second side adjustment rod 4 is not specifically limited in this application, and the number of tether clamps 8 should be two or more, and the required retractor blades 6 can be tied to the tether clamps 8 according to needs. During operation, by adjusting the adjustment head 7 and the blade fixing seat 9 according to needs, the relative position of each retractor blade 6 can be easily adjusted.

[0033] It should be noted that, after actual application, since the position of the retractor blade 6 can be flexibly adjusted in different directions of X, Y, and Z, the retractor can be flexibly applied not only to hip joint surgery, but also to knee joint and shoulder surgery, greatly improving the scope of application.

[0034] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and technical features of the present application. For those skilled in the art, solutions or features that belong to the prior art or common knowledge are not described in detail in the above embodiments.

[0035] In addition, the technical solutions of the present application are not limited to the above-mentioned embodiments. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hip retractor, comprising a main support frame (1), characterized in that: The main support frame (1) is provided with a main adjustment rod (2) with adjustable positions, the main adjustment rod (2) is provided with two corresponding first side adjustment rods (3) and a second side adjustment rod (4) with adjustable positions, the first side adjustment rod (3) is provided with a plurality of blade mounting rods (5) with adjustable positions, the blade mounting rod (5) is provided with a blade fixing seat (9), a retracting blade (6) is detachably provided on the blade fixing seat (9), and the second side adjustment rod (4) is provided with a plurality of tether clips (8) for fixing the retracting blade (6) to the second side adjustment rod (4) via tethers.

2. The hip retractor according to claim 1, characterized in that: The main support frame (1) and the main adjustment rod (2), the main adjustment rod (2) and the first side adjustment rod (3) and the second side adjustment rod (4), and the first side adjustment rod (3) and the blade mounting rod (5) are all detachably connected via an adjustment head (7).

3. The hip retractor according to claim 2, characterized in that: The regulating head (7) comprises a central shaft (10) and two elastic clamping rings (12) for being sleeved on the rod body, one end of the two elastic clamping rings (12) being movably sleeved on the central shaft (10), a retaining ring (13) being movably sleeved on the central shaft (10) being arranged between the two elastic clamping rings (12), a retaining plate (14) being fixedly arranged on the lower end of the central shaft (10), and an eccentric handle (11) being rotatably arranged on the upper end of the central shaft (10).

4. The hip retractor according to claim 1, characterized in that: The blade fixing seat (9) comprises a seat body (18) fixedly arranged at the end of the blade mounting rod (5), a blade fixing groove (22) is provided on the upper side of the seat body (18), a pressure rod (20) is threadedly connected to the top of the blade fixing groove (22), and the upper end of the pressure rod (20) is fixedly connected to a second knob (19) at the top of the seat body (18).

5. The hip retractor according to claim 1, characterized in that: An opening (17) is provided on the outer side of the tether clamp (8), and corresponding side notches (16) are provided on both sides of the opening (17).

6. The hip retractor according to claim 5, characterized in that: A tether opening (21) is provided at the tail of the retracting blade (6).

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