CN221751012U - Temporary external fixation support for pelvic fracture - Google Patents

Abstract

The utility model provides a temporary external fixation support for pelvic fracture, and belongs to the technical field of medical appliances. Solves the problems of difficult installation of the prior pelvic girdle, deviation of wrapping positions of the girdle, neglecting internal rotation position of lower limbs and lack of extrusion fixation of longitudinal fracture. The pelvis strap and the lower limb internal rotation strap are respectively used for being wound at the hip and the feet, the pelvis strap comprises a pelvis strap main body, an inflatable cushion is arranged on the inner side surface of the pelvis strap main body, the thickness of the upper end and the lower end of the inflatable cushion is the same and is larger than that of the middle part of the inflatable cushion, a plurality of groups of mutually matched jointing devices are arranged at the left end and the right end of the pelvis strap main body, and a front upper spine horizontal marking line and a large tuberosity horizontal marking line are arranged on the outer side surface of the pelvis strap main body. It is mainly used for temporary fixation of pelvic fracture.

Description

A temporary external fixation brace for pelvic fracture

Technical Field

The utility model belongs to the technical field of medical instruments, in particular to a temporary external fixation brace for pelvic fractures.

Background Art

The pelvis is composed of three bones: the hip bones on both sides and the sacrum and coccyx at the back. It forms a bony connection in the front with the help of the pubic symphysis, and forms a pelvic-shaped structure in the back with the help of the sacroiliac joint, sacrotuberous ligament, and sacrospinous ligament. Pelvic fractures are generally caused by greater violence. Common causes include falling from heights, car accidents, and being hit by heavy objects. The injuries are usually serious. Patients with pelvic fractures often find huge hematomas in the abdominal cavity, and pelvic fracture bleeding can be as much as 5000ml. The pelvic volume can increase by 50% when the pelvic width increases by 2cm. Therefore, the most serious complication of pelvic fractures is hemorrhagic shock caused by pelvic fractures. Therefore, it is particularly important for patients with pelvic fractures to implement firm and reliable temporary fixation in the emergency department.

The pelvic band is a non-invasive object that is placed around the greater trochanter and tightened manually. The function of the pelvic band is to clamp the pelvic ring, reduce the overall volume of the pelvis, and reduce fracture bleeding. In addition, clamping the pelvic ring can play a role in packing and stopping bleeding, protecting the initial blood clot formed after the fracture, because the initial blood clot is most effective in reducing bleeding. In order to achieve the most effective fixation, the edge of the pelvic band needs to pass upward over the anterior superior iliac spine and downward over the greater trochanter of the femur when tying, while internally rotating both lower limbs, and tightening and reinforcing according to the band instructions.

However, in clinical practice, the following problems often occur:

1. Difficult to install, often requiring a large movement of the patient, which may increase the risk of bleeding;

2. The emergency personnel lacked specialized knowledge of pelvic fixation orthopedic surgery, and the wrapping position was deviated, resulting in inaccurate fixation of the pelvic fracture;

3. Ignoring the placement of the lower limbs in internal rotation, the band's fixed hemostasis effect cannot be maximized;

4. Traditional bands only have a fixation effect on pelvic fractures in the horizontal direction, and have no compression fixation effect on fractures in the longitudinal direction of the pelvis.

Utility Model Content

In view of this, the utility model aims to propose a temporary external fixation brace for pelvic fractures to solve the problems of difficult installation of existing pelvic belts, deviation in the wrapping position of the belts, neglect of the internal rotation position of the lower limbs, and lack of compression fixation for longitudinal fractures.

To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temporary external fixation brace for pelvic fracture, which comprises a pelvic belt and a lower limb internal rotation belt, the pelvic belt and the lower limb internal rotation belt are used to wrap around the hip and the feet respectively, the pelvic belt comprises a pelvic belt main body, an inflatable cushion is arranged on the inner surface of the pelvic belt main body, the thickness of the upper and lower ends of the inflatable cushion is the same and both are greater than the thickness of the middle part of the inflatable cushion, the left and right ends of the pelvic belt main body are respectively provided with a plurality of groups of engaging devices that cooperate with each other, the outer surface of the pelvic belt main body is provided with a horizontal marking line of the anterior superior iliac spine and a horizontal marking line of the greater trochanter, the lower limb internal rotation belt comprises a lower limb internal rotation belt main body, one end of the lower limb internal rotation belt main body is hollowed out and provided with an opening, and the other end of the lower limb internal rotation belt main body is provided with an extension belt that is plugged and matched with the opening.

Furthermore, both the left and right ends of the pelvic belt body are provided with connecting belts, and the engaging device includes buckles arranged at the ends of each connecting belt.

Furthermore, the horizontal marking line of the anterior superior iliac spine is set above the horizontal marking line of the greater trochanter.

Furthermore, an inflation nozzle is provided on one side of the inflatable cushion.

Furthermore, an inflatable bag is arranged on the inner surface of the main body of the lower limb internal rotation band.

Furthermore, an inflation nozzle is provided on one side of the inflatable bag.

Furthermore, the outer surface of the main body of the lower limb internal rotation strap and one side of the extension band are connected by Velcro, and the outer surface of the main body of the lower limb internal rotation strap is provided with a Velcro fur surface, and the surface of one side of the extension band is provided with a hook surface that cooperates with the Velcro fur surface.

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

1. The utility model provides connecting belts at the left and right ends of the pelvic belt body, and provides buckles at the ends of the connecting belts. In clinical application, the buckle with the connecting belt at one end is inserted from the back of the waist and hips of the injured person, and then the buckle is installed and locked with the socket at the other end to complete the wearing of the pelvic belt, thereby avoiding the possibility of aggravating the risk of bleeding by moving the patient significantly when wearing the traditional pelvic belt;

2. The utility model is provided with anterior superior iliac spine horizontal marking line and greater trochanter horizontal marking line on the outer surface of the pelvic strap body, marking the corresponding positions of the anterior superior iliac spine and greater trochanter on the body surface, which is convenient for rescuers to quickly and correctly complete positioning and effective fixation, avoiding the situation of inaccurate fixation of pelvic fractures due to deviation of the pelvic strap wrapping position;

3. The utility model provides an inflatable cushion on the inner surface of the pelvic strap body, and the thickness of the upper and lower ends of the inflatable cushion is the same and both are greater than the thickness of the middle part of the inflatable cushion. After the patient wears and inflates the cushion, the pressure gradient generated by the upper and lower ends and the middle part of the inflatable cushion ensures that the pelvic strap is fixed in the horizontal direction, and achieves the compression fixation of the longitudinal fracture of the pelvic fracture;

4. The utility model is also provided with a lower limb internal rotation strap, which is wrapped around the patient's feet to keep the feet and lower limbs internally rotated, thereby maximizing the fixation and hemostasis effect of the strap. A small inflatable bag is provided on the inner side of the lower limb internal rotation strap, which can reduce the pressure on the foot skin caused by long-term fixation.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

FIG1 is a schematic structural diagram of a pelvic strap in a temporary external fixation brace for pelvic fractures according to the utility model;

FIG2 is a schematic structural diagram of a temporary external fixation brace for pelvic fractures according to the present invention when the lower limb internal rotation band is unfolded.

1- pelvic strap body, 2- inflatable cushion, 3- connecting strap, 4- buckle, 5- horizontal marking line of anterior superior iliac spine, 6- horizontal marking line of greater trochanter, 7- lower limb internal rotation strap body, 8- extension strap, 9- opening, 10- inflatable bag, 11- Velcro.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely explain the technical solutions in the embodiments of the utility model. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

Referring to Fig. 1-2, this embodiment is described, a temporary external fixation brace for pelvic fractures, comprising a pelvic strap and a lower limb internal rotation strap, the pelvic strap and the lower limb internal rotation strap are respectively used to wrap around the hip and the feet, the pelvic strap comprises a pelvic strap body 1, an inflatable cushion 2 is arranged on the inner surface of the pelvic strap body 1, the thickness of the upper and lower ends of the inflatable cushion 2 is the same and both are greater than the thickness of the middle part of the inflatable cushion 2, the left and right ends of the pelvic strap body 1 are both provided with a plurality of groups of mutually cooperating The pelvic band body 1 is provided with a horizontal marking line 5 of the anterior superior iliac spine and a horizontal marking line 6 of the greater trochanter on its outer surface. The lower limb internal rotation band includes a lower limb internal rotation band body 7. One end of the lower limb internal rotation band body 7 is hollowed out to provide an opening 9. The other end of the lower limb internal rotation band body 7 is provided with an extension belt 8 that is plugged into the opening 9. The lower limb internal rotation band in this embodiment is wrapped around the patient's feet to keep the patient's feet and lower limbs internally rotated, thereby maximizing the fixing and hemostatic effect of the band.

In the present embodiment, an inflatable cushion 2 is provided on the inner surface of the pelvic belt body 1, and the thickness of the upper and lower ends of the inflatable cushion 2 is the same and both are greater than the thickness of the middle part of the inflatable cushion 2. After the patient wears it and inflates it, the pressure gradient generated by the upper and lower ends and the middle part of the inflatable cushion 2 can achieve compression fixation of the longitudinal fracture of the pelvic fracture while ensuring that the pelvic belt is fixed in the horizontal direction.

In this embodiment, the left and right ends of the pelvic belt body 1 are provided with connecting belts 3, and the coupling device includes buckles 4 arranged at the ends of each connecting belt 3. In this embodiment, by arranging connecting belts 3 at the left and right ends of the pelvic belt body 1 and arranging buckles 4 at the ends of the connecting belts 3, when it is used on the patient, the buckle 4 with the connecting belt 3 at one end is inserted from the back of the waist and buttocks of the injured person, and then it is installed and locked with the socket at the other end to complete the wearing of the pelvic belt, thereby avoiding the possibility of a large-scale movement of the patient when wearing the traditional pelvic belt, thereby increasing the risk of bleeding.

The anterior superior iliac spine horizontal marking line 5 described in this embodiment is arranged above the greater trochanter horizontal marking line 6. The anterior superior iliac spine horizontal marking line 5 and the greater trochanter horizontal marking line 6 are arranged on the outer surface of the pelvic band main body 1. According to the skeletal anatomical data, the corresponding positions of the anterior superior iliac spine and the greater trochanter on the body surface are marked, which is convenient for rescue personnel to quickly and correctly complete positioning and effective fixation, and avoids the occurrence of inaccurate fixation of pelvic fractures due to deviations in the wrapped part of the pelvic band.

In this embodiment, an inflation nozzle is provided on one side of the inflatable cushion 2 , and the inflation nozzle is used to inflate and deflate the inflatable cushion 2 .

In this embodiment, an inflatable bag 10 is arranged on the inner surface of the lower limb internal rotation band body 7. The small inflatable bag 10 on the inner side of the lower limb internal rotation band body 7 can reduce the pressure on the foot skin caused by long-term fixation.

In this embodiment, an inflation nozzle is provided on one side of the inflatable bag 10 , and the inflation nozzle is used to inflate and deflate the inflatable bag 10 .

In this embodiment, the outer surface of the lower limb internal rotation strap body 7 and one side of the extension band 8 are connected by Velcro 11. The outer surface of the lower limb internal rotation strap body 7 is provided with a furry surface of the Velcro 11, and the surface of one side of the extension band 8 is provided with a hook surface that cooperates with the furry surface of the Velcro 11.

When the temporary external fixation brace for pelvic fracture described in this embodiment is worn by the patient, the pelvic belt needs to be worn first. The medical staff needs to insert the buckle 4 with the connecting belt 3 at one end of the pelvic belt body 1 from the back of the injured person's waist and hips, and then install and close it with the socket at the other end. After all the buckles 4 are installed and closed, the position of the pelvic belt on the patient's body surface is adjusted according to the horizontal marking line 5 of the anterior superior iliac spine and the horizontal marking line 6 of the greater trochanter on the pelvic belt body 1. After the adjustment is completed, the tightness of the pelvic belt is adjusted through the connecting belt 3. After the above steps are completed, the air is inflated into the inflatable cushion through the inflation nozzle. 2. After the pelvic band is firmly fixed to the fracture of the patient's pelvis, stop inflating to complete the wearing of the pelvic band. Then, the patient's feet are internally rotated together, and the lower limb internal rotation band is wrapped around the outside of the patient's feet. When wrapping, the extension belt 8 is inserted through the opening 9 and fixed by the Velcro 11 between the outer surface of the lower limb internal rotation band body 7 and one side of the extension belt 8. After the fixing, inflate the inflatable bag 10 through the inflation nozzle. After the lower limb internal rotation band is firmly fixed to the patient's feet, stop inflating to complete the wearing of the temporary external fixation brace for the entire pelvic fracture.

The embodiments of the utility model disclosed above are only used to help explain the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.

Claims (7)

1. A temporary external fixation brace for pelvic fractures, characterized in that it comprises a pelvic strap and a lower limb internal rotation strap, the pelvic strap and the lower limb internal rotation strap are used to wrap around the hip and the feet respectively, the pelvic strap comprises a pelvic strap body (1), an inflatable cushion (2) is arranged on the inner surface of the pelvic strap body (1), the thickness of the upper and lower ends of the inflatable cushion (2) is the same and both are greater than the thickness of the middle part of the inflatable cushion (2), the pelvic strap body (1) is provided with an inflatable cushion (2) on the inner surface of the pelvic strap body (1), and the thickness of the inflatable cushion (2) is the same at both ends and both are greater than the thickness of the middle part of the inflatable cushion (2). ) are provided with a plurality of groups of mutually cooperating engaging devices at both the left and right ends, the outer surface of the pelvic band body (1) is provided with a horizontal marking line (5) of the anterior superior iliac spine and a horizontal marking line (6) of the greater trochanter, the lower limb internal rotation band comprises a lower limb internal rotation band body (7), one end of the lower limb internal rotation band body (7) is hollowed out to have an opening (9), and the other end of the lower limb internal rotation band body (7) is provided with an extension band (8) which is plugged into and cooperates with the opening (9). 2. A temporary external fixation brace for pelvic fractures according to claim 1, characterized in that: the left and right ends of the pelvic strap body (1) are both provided with connecting straps (3), and the connecting device includes buckles (4) arranged at the ends of each connecting strap (3). 3. A temporary external fixation brace for pelvic fractures according to claim 1, characterized in that the horizontal marking line (5) of the anterior superior iliac spine is arranged above the horizontal marking line (6) of the greater trochanter. 4. A temporary external fixation brace for pelvic fractures according to claim 1, characterized in that an inflation nozzle is provided on one side of the inflatable cushion (2). 5. A temporary external fixation brace for pelvic fractures according to claim 1, characterized in that an inflatable bag (10) is provided on the inner surface of the lower limb internal rotation band body (7). 6. A temporary external fixation brace for pelvic fractures according to claim 5, characterized in that an inflation nozzle is provided on one side of the inflation bag (10). 7. A temporary external fixation brace for pelvic fractures according to claim 1, characterized in that the outer surface of the lower limb internal rotation strap body (7) and one side of the extension strap (8) are connected by Velcro (11), the outer surface of the lower limb internal rotation strap body (7) is provided with a furry surface of the Velcro (11), and the surface of one side of the extension strap (8) is provided with a hook surface that cooperates with the furry surface of the Velcro (11).