A lower limb anti-rotation traction device for treating intertrochanteric fractures

Abstract

The utility model relates to a lower limb anti-rotation traction device for intertrochanteric fracture treatment, which belongs to the technical field of lower limb fixation for conservative treatment of intertrochanteric fracture, and includes a wearable component for wrapping the patient's lower limb, wherein a guide rail is provided below the wearable component, a guide wheel is provided on the guide rail, a traction rope is provided on the wearable component, and the free end of the traction rope passes around the guide wheel and is connected with a counterweight to pull the wearable component and the patient's lower limb. The utility model pulls the wearable component through the counterweight and the traction rope, so that the wearable component slides forward on the guide rail, and the guide wheel guides the traction rope. The wearable component provides lower limb traction for the patient, avoiding secondary injury to the intertrochanteric caused by the large-scale bending of the patient's lower limbs, and the patient can avoid spasm symptoms in this traction state, while relieving pain and promoting fracture healing, improving the patient's medical experience.

Description

Technical Field

[0001] The utility model belongs to the technical field of lower limb fixation for conservative treatment of intertrochanteric fractures, and in particular relates to a lower limb anti-rotation traction device for intertrochanteric fracture treatment. Background Art

[0002] The intertrochanteric joint is located in the human hip joint and is used to provide support nodes and muscle attachment points. Intertrochanteric fractures are common in the elderly who are prone to osteoporosis. During the treatment of intertrochanteric fractures, a lower limb fixation device is needed to restrain the patient's lower limbs. In cases where the patient cannot tolerate surgical anesthesia or has a weak constitution, conservative treatment is often used to treat the patient. At this time, an external fixator is needed to limit the rotation of the patient's lower limbs after manual reduction.

[0003] Existing external fixators for intertrochanteric fractures usually use fixation devices such as hip abduction braces and long leg plasters. Although the above-mentioned fixation devices can limit the rotation of the patient's legs and promote fracture healing to a certain extent, the fixation devices are difficult to relieve the pain caused by muscle spasms in patients. Moreover, this type of non-traction fixation device is fixed on the patient's hip joint, which is likely to cause inconvenience to the daily life of bedridden patients. Therefore, it is urgent to design a lower limb anti-rotation traction device for the treatment of intertrochanteric fractures to improve the patient's medical experience. Utility Model Content

[0004] The purpose of the utility model is to provide a lower limb anti-rotation traction device for treating intertrochanteric fractures in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A lower limb anti-rotation traction device for intertrochanteric fracture treatment includes a wearable component for wrapping a patient's lower limb, a guide rail is provided below the wearable component, a guide wheel is provided on the guide rail, a traction rope is provided on the wearable component, and the free end of the traction rope is passed around the guide wheel and connected with a counterweight to pull the wearable component and the patient's lower limb. For patients with intertrochanteric fractures who choose conservative treatment, the lower limb anti-rotation traction device can be used to traction and fix the patient's lower limb after the medical staff manually reduces the patient. During the fixation process, first, the guide rail is set on the bed, then the wearable component is put on the patient's foot, and one or more counterweights are connected to the free end of the traction rope. The wearable component is pulled by the counterweight and the traction rope to make the wearable component slide forward on the guide rail. The guide wheel guides the traction rope in this process. The wearable component can straighten the patient's legs, limit the rotation of the patient's lower limbs, and avoid the large bending movement of the patient's lower limbs causing secondary damage to the intertrochanteric. At the same time, under this traction state, the patient can avoid spasm symptoms and improve the patient's medical experience.

[0007] As a further optimization solution of the utility model, the wearing component includes a slide table slidably arranged on the top of the guide rail, and a traction shoe arranged on the slide table.

[0008] As a further optimization solution of the utility model, the traction shoe is rotatably arranged on the top of the slide.

[0009] As a further optimization solution of the utility model, one end of the slide protrudes upward to form a mounting plate, an adjustable positioning pin is provided on the heel of the traction shoe, and an arc-shaped through groove corresponding to the adjustable positioning pin is provided on the mounting plate.

[0010] As a further optimization solution of the utility model, the tail of the adjustable positioning pin passes through the arc-shaped through slot, and the head of the adjustable positioning pin protrudes outward to form a convex ring, and the outer diameter of the convex ring is larger than the slot width of the arc-shaped through slot.

[0011] As a further optimization solution of the utility model, the central angle of the arc-shaped through groove is less than 90°, at least two arc-shaped through grooves are provided, and the arc-shaped through grooves on the mounting plate are arranged along the same circumference.

[0012] As a further optimization solution of the utility model, a plurality of ventilation holes are provided on the sole of the traction shoe, and an elastic strap is provided on the traction shoe, and a plurality of through holes are provided on the strap.

[0013] As a further optimization solution of the present invention, the side of the traction rope connected to the wearing component is divided into multiple strands of rope, and the multiple strands of rope are fixedly connected to the slide or the mounting plate.

[0014] As a further optimization solution of the utility model, two groups of rollers are symmetrically arranged at the bottom of the slide, and two guide shafts corresponding to the two groups of rollers are respectively arranged on both sides of the guide rail.

[0015] As a further optimization solution of the utility model, a plurality of positioning members are provided on the guide rail, and the guide rail is detachably connected to the hospital bed through the positioning members, and the positioning members are threaded fasteners and / or cross bars.

[0016] The beneficial effects of the utility model are:

[0017] 1) The utility model pulls the wearable component through the counterweight and the traction rope, so that the wearable component slides forward on the guide rail, and the guide wheel guides the traction rope. The wearable component can provide lower limb traction for the patient, avoiding secondary injury to the intertrochanteric region caused by large-scale bending of the patient's lower limbs. In addition, the traction state can avoid spasm symptoms in the patient, prevent fracture displacement, relieve patient pain, promote fracture healing, and improve the patient's medical experience;

[0018] 2) The utility model uses the convex ring on the adjustable positioning pin to make the heel of the traction shoe stick to the side wall of the mounting plate. The adjustable positioning pin can slide along the arc-shaped through groove, thereby ensuring that the traction shoe can swing slightly, avoiding the patient's foot stiffness and discomfort during the traction of the lower limbs. The traction shoe is provided with ventilation holes, which can further improve the patient's medical experience;

[0019] 3) The traction shoe of the utility model adopts a breathable and pressure-proof design. The sole is provided with ventilation holes. The upper is composed of a plurality of thickened elastic straps with through holes. The straps can be designed as an inflatable structure to avoid marks on the patient's feet and prevent local bedsores. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic diagram of the upper structure of a traction shoe.

[0024] In the figure: 1. Wearing component; 2. Guide rail; 3. Guide wheel; 4. Traction rope; 5. Counterweight; 6. Guide shaft; 7. Threaded fastener; 8. Cross bar; 11. Slide; 12. Traction shoe; 13. Mounting plate; 14. Adjustable positioning pin; 14a, convex ring; 15. Arc-shaped through groove; 16. Roller; T, strap. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example

[0027] like Figure 1-4As shown, a lower limb anti-rotation traction device for intertrochanteric fracture treatment includes a wearable component 1 for wrapping the patient's lower limb, the wearable component 1 is slidably arranged on the top of a guide rail 2, the guide rail 2 is provided with a guide wheel 3, the wearable component 1 is provided with a traction rope 4, the free end of the traction rope 4 passes around the guide wheel 3 and is connected with a counterweight 5, the counterweight 5 is preferably a weight, the number of weights can be adjusted according to actual needs, and the weights pull the wearable component 1 and the patient's lower limb through the traction rope 4. The wearable component 1 includes a slide 11 slidably arranged on the top of the guide rail 2, and a traction shoe 12 arranged on the slide 11, and the traction rope 4 is fixed on the slide 11 on the side of the wearable component 1. For patients with intertrochanteric fractures who choose conservative treatment, the lower limb anti-rotation traction device can be used to traction and fix the patient's lower limbs after the medical staff manually reduces the patient.

[0028] During the fixation process, first, the guide rail 2 is set on the bed, then the traction shoe 12 is worn on the patient's foot, and one or more counterweights 5 are connected to the free end of the traction rope 4, and the wearable component 1 is pulled by the counterweight 5 and the traction rope 4, so that the slide 11 of the wearable component 1 slides forward on the guide rail 2, and the traction shoe 12 moves with the slide 11. The guide wheel 3 guides the traction rope 4 in this process. The wearable component 1 straightens the patient's legs through the slide 11 and the traction shoe 12, limits the rotation of the patient's lower limbs, and avoids the large bending movement of the patient's lower limbs causing secondary injury to the intertrochanteric region. At the same time, under this traction state, the patient can avoid spasm symptoms, prevent fracture displacement, promote fracture healing, and improve the patient's medical experience.

[0029] In order to further improve the patient's medical experience, the traction shoe 12 is rotatably mounted on the top of the slide 11. Specifically, one end of the slide 11 protrudes upward to form a mounting plate 13, an adjustable positioning pin 14 is provided on the heel of the traction shoe 12, and an arc-shaped through groove 15 corresponding to the adjustable positioning pin 14 is provided on the mounting plate 13, and the adjustable positioning pin 14 is threadedly connected to the heel of the traction shoe 12. The tail of the adjustable positioning pin 14 passes through the arc-shaped through groove 15, and the head of the adjustable positioning pin 14 protrudes outward to form a convex ring 14a, and the outer diameter of the convex ring 14a is greater than the groove width of the arc-shaped through groove 15. The central angle of the arc-shaped through groove 15 is less than 90°, and at least two arc-shaped through grooves 15 are provided, and each arc-shaped through groove 15 on the mounting plate 13 is arranged along the same circumference.

[0030] Preferably, the sole of the traction shoe 12 is provided with a plurality of ventilation holes, and the traction shoe 12 adopts a breathable and anti-squeezing design. The size of the traction shoe 12 can be selected to ensure that the traction device can be designed in accordance with ergonomics. The upper of the traction shoe 12 is composed of a plurality of thickened elastic straps T to prevent the patient's feet from being strangled and local bedsores. The thickness of the straps T is not less than 0.5 cm and is made of a flexible material. The straps T are provided with a plurality of through holes to further improve the breathability of the traction shoe. An inflatable cavity can also be provided in the straps T to further improve the patient's medical experience.

[0031] The heel of the traction shoe 12 is attached to the side wall of the mounting plate 13 by the convex ring 14a on the adjustable positioning pin 14, and the adjustable positioning pin 14 can slide along the arc-shaped through groove 15, thereby ensuring that the traction shoe 12 can swing slightly to avoid the patient's foot stiffness and discomfort during the traction of the lower limbs.

[0032] In addition, the traction rope 4 is fixed at three points, and the side of the traction rope 4 connected to the wearable component 1 is divided into three strands of rope, and the three strands of rope are fixedly connected to the slide 11 or the mounting plate 13. In addition, the rope can also be fixed to the traction shoe 12. Two groups of rollers 16 are symmetrically arranged at the bottom of the slide 11, and two guide shafts 6 corresponding to the two groups of rollers 16 are respectively arranged on both sides of the guide rail 2. A number of positioning members are arranged on the guide rail 2, and the guide rail 2 is detachably connected to the bed through the positioning members. The positioning member is preferably a threaded fastener 7 or a cross bar 8, or a threaded fastener 7 can be arranged on the guide rail 2, and cross bars 8 can be arranged at both ends of the guide rail 2, wherein the threaded fastener 7 is preferably a bolt, and screw holes corresponding to the fastener are arranged on the guide rail 2 and the bed board of the bed. In addition, when the bed board is made of ferromagnetic metal, the positioning member 7 can also be replaced by a magnet.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A lower limb anti-rotation traction device for treating intertrochanteric fractures, comprising a wearable component (1) for wrapping a patient's lower limbs, characterized in that: A guide rail (2) is provided below the wearable component (1), a guide wheel (3) is provided on the guide rail (2), a traction rope (4) is provided on the wearable component (1), and a free end of the traction rope (4) is passed around the guide wheel (3) and connected to a counterweight (5) for pulling the wearable component (1) and the patient's lower limbs.

2. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 1, characterized in that: The wearing assembly (1) comprises a slide platform (11) slidably arranged on the top of the guide rail (2), and a traction shoe (12) arranged on the slide platform (11).

3. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 2, characterized in that: The traction shoe (12) is rotatably arranged on the top of the slide (11).

4. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 3, characterized in that: One end of the slide (11) protrudes upward to form a mounting plate (13); an adjustable positioning pin (14) is provided on the heel of the traction shoe (12); and an arc-shaped through groove (15) corresponding to the adjustable positioning pin (14) is provided on the mounting plate (13).

5. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 4, characterized in that: The tail of the adjustable positioning pin (14) passes through the arc-shaped through slot (15), and the head of the adjustable positioning pin (14) protrudes outward to form a convex ring (14a), and the outer diameter of the convex ring (14a) is greater than the slot width of the arc-shaped through slot (15).

6. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 4, characterized in that: The central angle of the arc-shaped through groove (15) is less than 90°, at least two arc-shaped through grooves (15) are provided, and each arc-shaped through groove (15) on the mounting plate (13) is arranged along the same circumference.

7. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 2, characterized in that: The sole of the traction shoe (12) is provided with a plurality of ventilation holes, and the traction shoe (12) is provided with an elastic binding belt (T), and the binding belt (T) is provided with a plurality of through holes.

8. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 2, characterized in that: The side of the traction rope (4) connected to the wearable component (1) is divided into multiple strands of rope material, and the multiple strands of rope material are fixedly connected to the slide (11) or the mounting plate (13).

9. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 2, characterized in that: Two groups of rollers (16) are symmetrically arranged at the bottom of the slide (11), and two guide shafts (6) corresponding to the two groups of rollers (16) are respectively arranged on both sides of the guide rail (2).

10. The lower limb anti-rotation traction device for treating intertrochanteric fractures according to claim 1, characterized in that: The guide rail (2) is provided with a plurality of positioning members, and the guide rail (2) is detachably connected to the hospital bed via the positioning members, wherein the positioning members are threaded fasteners (7) and / or cross bars (8).

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