Pelvic fracture temporary fixing assembly and application method thereof

Abstract

The invention relates to a pelvic fracture temporary fixing assembly and an application method thereof.The pelvic fracture temporary fixing assembly comprises two symmetrically-arranged clamping plates, and two sets of rotary connectors are symmetrically arranged on the sides, away from each other, of the two clamping plates; when the device is used, the ends, away from the clamping plates, of the two clamping rods are rotated outwards, the ends, connected with the clamping plates, of the clamping rods are made to rotate with the rotary connectors arranged at the middle sections of the clamping rods as rotary shafts, and the clamping rods are connected with the clamping plates through the rotary connectors arranged at the middle sections of the clamping rods. The two clamping plates are driven to rotate oppositely, the fracture position of a patient is clamped from the two sides, then the inner limiting nuts are matched with the adjusting screws to limit the ends, away from the clamping plates, of the clamping rods, so that the pelvic fracture position of the patient is stably clamped and fixed through the clamping plates, the patient does not need to be lifted during wearing or releasing, and medical staff can use the pelvic fracture position conveniently.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical fixation structures, and particularly relates to a temporary fixation assembly for pelvic fractures and an application method thereof. Background Art

[0002] Pelvic fractures are mostly caused by motor vehicle accidents and high - altitude falls. When handling, moving, and transferring the wounded at the scene, special transfer equipment is required. However, there are very few truly effective professional fixation devices, which seriously affect the transfer of such fracture patients.

[0003] The existing method generally uses a pelvic fixation belt to fix the pelvic fracture site. The pelvic fixation belt is a covering structure. When wearing or removing it, the patient needs to be lifted, which not only causes pain to the patient, but may also cause more serious fracture displacement due to movement, increasing the risk of bleeding and being inconvenient for medical staff to use. Summary of the Invention

[0004] The purpose of the present invention is to provide a temporary fixation assembly for pelvic fractures and an application method thereof with a simple structure and reasonable design to solve the above - mentioned problems.

[0005] The present invention achieves the above - mentioned purpose through the following technical solutions:

[0006] A temporary fixation assembly for pelvic fractures includes two symmetrically arranged splints. On the sides of the two splints away from each other, two groups of rotary connectors are symmetrically arranged. In each of the two groups of rotary connectors, one rotary connector is rotatably connected to the outer wall of the splint through a connecting member. The rotary connector includes an upper cylinder disposed above and a lower cylinder disposed below the upper cylinder. The adjacent ends of the upper cylinder and the lower cylinder are rotatably connected through a rotating shaft. A clamping rod passes through the three lower cylinders in the same group. A support screw passes through the same two upper cylinders in the middle section of the clamping rod. An adjustment screw passes through the same two upper cylinders at the end of the clamping rod away from the splint. An outer limit nut is screwed on a section of the support screw outside the clamping rod, and an inner limit nut is screwed on a section of the adjustment screw inside the clamping rod.

[0007] As a further optimized solution of the present invention, arc - shaped grooves are provided on the adjacent sides of the two splints, and air bags are installed in the arc - shaped grooves. The inner cavity of the air bag is filled with gas.

[0008] As a further optimized solution of the present invention, one side of the air bag close to the inner wall of the arc - shaped groove is fixedly connected to an air filling tube communicating with the inner cavity of the air bag. The end of the air filling tube away from the air bag penetrates through the splint and is connected to a pipe joint. A valve is installed in the middle section of the air filling tube.

[0009] As a further optimized solution of the present invention, the connecting member includes a connecting shaft rotatably connected to the outer side wall of the clamping plate at one end, and the end of the connecting shaft away from the clamping plate is fixed to the upper cylinder of one of the rotary connectors, and a bearing is installed at the connection between the connecting shaft and the clamping plate.

[0010] As a further optimized solution of the present invention, limit heads for preventing the clamping rod, the support screw and the adjustment screw from slipping off the rotary connector are integrally formed at both ends of the clamping rod, the support screw and the adjustment screw.

[0011] As a further optimized solution of the present invention, support rings are fixedly connected to one ends of the outer limit nut and the inner limit nut close to the upper cylinder.

[0012] The application method of the pelvic fracture temporary fixation assembly specifically includes the following steps:

[0013] Step 1, adjust the distance between the two clamping plates according to the size of the patient's thigh.

[0014] Step 2, surround the patient's pelvis with the two clamping plates centered on the greater trochanter of the patient's femur.

[0015] Step 3, screw the outer limit nut to adjust the distance between the middle sections of the two clamping rods to be less than the width of the patient's buttocks.

[0016] Step 4, rotate the end of the clamping rod away from the clamping plate outward to clamp the two clamping plates.

[0017] Step 5, connect an external inflation structure to the pipeline joint to fill an appropriate amount of gas into the airbag.

[0018] Step 6, close the valve installed on the middle section of the inflation pipe.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. When the device is in use, by rotating the ends of the two clamping rods away from the clamping plate outward, the ends of the clamping rods connecting the clamping plates rotate with the rotary connectors provided in the middle sections of the clamping rods as the rotation axes, driving the two clamping plates to rotate towards each other, clamping the fracture position of the patient from both sides, and then using the inner limit nut and the adjustment screw to limit the end of the clamping rod away from the clamping plate, so as to realize stable clamping and fixation of the patient's pelvic fracture by the clamping plates. It is not necessary to lift the patient when wearing or removing, which is convenient for medical staff to use.

[0021] 2. Since this device uses a structure similar to an external fixation bracket to fix the position of the patient's pelvic fracture, and the clamping rod can rotate around the connecting axis, driving the support screw and the adjusting screw to rotate, and adjusting the positions of the support screw and the adjusting screw of the clamping rod, it can avoid the problem that the existing pelvic fixation belt generally uses a completely wrapped structure for fixation, which makes it inconvenient to check the wrapped position of the patient after fixation. Brief Description of the Drawings

[0022] Figure 1 is the top structure diagram of the whole invention;

[0023] Figure 2 is the bottom structure schematic diagram of the whole invention;

[0024] Figure 3 is the present invention Figure 2 local detailed enlarged view of part A;

[0025] Figure 4 is the present invention Figure 1 first sectional structure schematic diagram;

[0026] Figure 5 is the present invention Figure 4 local detailed enlarged view of part B in;

[0027] Figure 6 is the present invention Figure 1 second sectional structure schematic diagram;

[0028] Figure 7 is the usage flow chart of the temporary fixation assembly for pelvic fractures of the present invention.

[0029] In the figure: 1. Splint; 2. Airbag; 3. Inflatable tube; 4. Pipe joint; 5. Valve; 6. Rotary connector; 61. Upper cylinder; 62. Lower cylinder; 7. Connecting shaft; 8. Bearing; 9. Clamping rod; 10. Support screw; 11. Adjusting screw; 12. Limit head; 13. Outer limit nut; 14. Inner limit nut; 15. Support ring. Detailed Description of the Embodiment

[0030] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following detailed embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0031] Embodiment

[0032] As Figure 1 - Figure 6As shown in the figure, a temporary fixation component for pelvic fractures includes two symmetrically arranged splints 1. Arc-shaped grooves are provided on the adjacent sides of the two splints 1. An airbag 2 is installed in the arc-shaped grooves. The inner cavity of the airbag 2 is filled with gas. Installing the airbag 2 in the arc-shaped grooves provided on the adjacent sides of the two splints 1 can make the airbag 2 fit the soft tissues of the patient's thigh. This not only improves the clamping effect but also can avoid secondary injuries caused by excessive extrusion of the locally protruding positions of the patient's affected area as much as possible;

[0033] One side of the airbag 2 close to the inner wall of the arc-shaped groove is fixedly connected with an inflation tube 3 communicated with the inner cavity of the airbag 2. The end of the inflation tube 3 far from the airbag 2 penetrates through the splint 1 and is connected with a pipeline joint 4. A valve 5 is installed in the middle section of the inflation tube 3. After the patient's affected area is clamped and fixed by the splint 1, the pipeline joint 4 can be connected to the output pipeline of an external inflation device, and gas is filled into the airbag 2 through the inflation tube 3 to make the airbag 2 expand, so as to improve the clamping and fixing effect of the airbag 2 on the patient's fracture position;

[0034] Two groups of rotary connectors 6 are symmetrically arranged on the sides of the two splints 1 away from each other. The rotary connector 6 includes an upper cylinder 61 arranged above and a lower cylinder 62 arranged below the upper cylinder 61. The adjacent ends of the upper cylinder 61 and the lower cylinder 62 are rotatably connected by a rotating shaft;

[0035] One rotary connector 6 in each of the two groups of rotary connectors 6 is rotatably connected to the outer wall of the splint 1 through a connecting member. The connecting member includes a connecting shaft 7 whose one end is rotatably connected to the outer wall of the splint 1. The end of the connecting shaft 7 far from the splint 1 is fixed to the upper cylinder 61 of one of the rotary connectors 6. A bearing 8 is installed at the connection between the connecting shaft 7 and the splint 1. The connecting shaft 7 is provided so that the rotary connector 6 can rotate relative to the outer wall of the splint 1 through the connecting shaft 7. The bearing 8 is used to reduce the frictional resistance acting when the connecting shaft 7 rotates;

[0036] A clamping rod 9 passes through the three lower cylinders 62 in the same group. The same support screw 10 passes through the two upper cylinders 61 in the middle section of the clamping rod 9. An adjusting screw 11 passes through the two upper cylinders 61 at the end of the clamping rod 9 far from the splint 1. Limiting heads 12 for preventing the clamping rod 9, the support screw 10, and the adjusting screw 11 from slipping off the rotary connector 6 are integrally formed at both ends of the clamping rod 9, the support screw 10, and the adjusting screw 11, which can prevent the ends of the support screw 10, the clamping rod 9, and the adjusting screw 11 from slipping off the rotary connector 6 when they slide on the rotary connector 6, affecting the user's use;

[0037] One section of the support screw rod 10 located outside the clamping rod 9 is threadedly connected with an outer limit nut 13, and one section of the adjusting screw rod 11 located inside the clamping rod 9 is threadedly connected with an inner limit nut 14. Support rings 15 are fixedly connected to one ends of the outer limit nut 13 and the inner limit nut 14 close to the upper cylinder 61, enabling the user to thread the outer limit nut 13 and the inner limit nut 14 along the length directions of the support screw rod 10 and the adjusting screw rod 11, and use the support rings 15 installed on the outer limit nut 13 and the inner limit nut 14 to limit the clamping rod 9, so as to clamp the splint 1 at the position of the patient's pelvis;

[0038] As Figure 7 shown, the application method of the pelvic fracture temporary fixation assembly specifically includes the following steps:

[0039] Step 1, adjust the distance between the two splints 1 according to the size of the patient's thigh;

[0040] Step 2, surround the patient's pelvis with the two splints 1 centered on the greater trochanter of the patient's femur;

[0041] Step 3, thread the outer limit nut 13 to adjust the distance between the middle sections of the two clamping rods 9 to be less than the width of the patient's buttocks;

[0042] Step 4, rotate the end of the clamping rod 9 away from the splint 1 outwards to clamp the two splints 1;

[0043] Step 5, connect the external inflation structure to the pipeline joint 4 and fill an appropriate amount of gas into the airbag 2;

[0044] Step 6, close the valve 5 installed on the middle section of the inflation tube 3.

[0045] It should be noted that for this temporary pelvic fracture fixation component, when it is necessary to temporarily fix the pelvic fracture position of a patient, the distance between the two splints 1 can be adjusted according to the size of the patient's thigh. Then, with the greater trochanter of the patient's femur as the center, the two splints 1 are respectively wrapped around the patient's pelvis from both sides of the pelvic fracture position. Then, the user screws the two outer limit nuts 13 along the length direction of the support screw 10 towards the middle section of the support screw 10. The support ring 15 installed on the outer limit nut 13 is used to push the rotary connector 6 installed in the middle section of the clamping rod 9 to move until the distance between the middle sections of the two clamping rods 9 is less than the width of the patient's thigh. At this time, the user can rotate the end of the clamping rod 9 away from the splint 1 outwards, so that the end of the clamping rod 9 connected to the splint 1 rotates towards each other with the rotary connector 6 located in the middle section of the clamping rod 9 as the center of the circle, and the fracture position of the patient is clamped and fixed. After clamping, the user screws the inner limit nut 14 and cooperates with the adjusting screw 11 to support the end of the clamping rod 9 away from the splint 1, and then the splint 1 can be stably clamped at the fracture position of the patient for fixation. After the clamping is completed, an external inflation device can also be connected through the pipe joint 4, and the air bag 2 is inflated through the inflation pipe 3 to improve the clamping and fixation effect of the air bag 2 on the fracture position of the patient.

[0046] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A temporary fixation component for pelvic fractures, comprising two symmetrically arranged splints (1), characterized in that: On the symmetrically arranged two groups of rotary connectors (6) on the sides of the two splints (1) away from each other, in each of the two groups of rotary connectors (6), one rotary connector (6) is rotationally connected to the outer side wall of the splint (1) through a connecting member. The rotary connector (6) includes an upper cylinder (61) arranged above and a lower cylinder (62) arranged below the upper cylinder (61). The adjacent ends of the upper cylinder (61) and the lower cylinder (62) are rotationally connected through a rotating shaft. A clamping rod (9) passes through the three lower cylinders (62) in the same group. A same support screw rod (10) passes through the two upper cylinders (61) in the middle section of the clamping rod (9). Adjusting screw rods (11) pass through the two upper cylinders (61) at the end of the clamping rod (9) away from the splint (1). An outer limit nut (13) is screwed on a section of the support screw rod (10) located outside the clamping rod (9). An inner limit nut (14) is screwed on a section of the adjusting screw rod (11) located inside the clamping rod (9).

2. The temporary fixation assembly for pelvic fractures according to claim 1, wherein: Arc-shaped grooves are provided on the adjacent sides of the two splints (1), and air bags (2) are installed in the arc-shaped grooves. The inner cavity of the air bag (2) is filled with gas.

3. The temporary fixation assembly for pelvic fractures according to claim 2, wherein: One side of the air bag (2) close to the inner wall of the arc-shaped groove is fixedly connected with an air filling pipe (3) communicated with the inner cavity of the air bag (2). The end of the air filling pipe (3) away from the air bag (2) penetrates through the splint (1) and is connected with a pipe joint (4). A valve (5) is installed on the middle section of the air filling pipe (3).

4. A temporary fixation assembly for pelvic fractures according to claim 1, characterized in that: The connecting member includes a connecting shaft (7) with one end rotationally connected to the outer side wall of the splint (1). The end of the connecting shaft (7) away from the splint (1) is fixed to the upper cylinder (61) of one of the rotary connectors (6). A bearing (8) is installed at the connection between the connecting shaft (7) and the splint (1).

5. The temporary fixation assembly for pelvic fractures according to claim 1, wherein: Limit heads (12) for preventing the clamping rod (9), the support screw rod (10), and the adjusting screw rod (11) from slipping off the rotary connector (6) are integrally formed at both ends of the clamping rod (9), the support screw rod (10), and the adjusting screw rod (11).

6. The temporary fixation assembly for pelvic fractures according to claim 1, wherein: Support rings (15) are fixedly connected to one ends of the outer limit nut (13) and the inner limit nut (14) close to the upper cylinder (61).

7. Method for applying a temporary fixation assembly for pelvic fractures, based on the temporary fixation assembly for pelvic fractures according to any one of claims 1-6, characterized in that: Specifically, it includes the following steps: Step 1, adjust the distance between the two splints (1) according to the size of the patient's thigh; Step 2, surround the patient's pelvis with the two splints (1) centered on the greater trochanter of the patient's femur; Step 3, screw the outer limit nut (13) to adjust the distance between the middle sections of the two clamping rods (9) to be less than the width of the patient's buttocks; Step 4, rotate the end of the clamping rod (9) away from the splint (1) outwards to clamp the two splints (1); Step 5, connect an external air inflation structure to the pipe joint (4) to fill an appropriate amount of gas into the air bag (2); Step 6, close the valve (5) installed on the middle section of the air filling pipe (3).

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