CN221617532U - A pelvic volume control external fixation device - Google Patents

Abstract

The utility model discloses a pelvic volume control external fixation device, which relates to the field of medical devices and comprises a rear pelvic trouser and a front pelvic trouser. The rear pelvic trouser matches the waist and buttocks of a human body, and the inner side of the rear pelvic trouser is respectively provided with a kidney expansion balloon and a sciatic expansion balloon at positions corresponding to the kidneys and ischia of a human body, and the front pelvic trouser matches the abdomen and genitals of a human body. The utility model is based on the pelvic volume control theory and the "self-filling effect", through the soft channel of the pelvic anatomy, using the expansion balloon at the corresponding position, and through inward compression, so as to achieve the ability to quickly and easily reduce the pelvic volume, and quickly control the pelvic volume expansion caused by severe pelvic trauma without increasing the patient's wound, so as to limit the spread of hematoma, increase the pressure of hematoma, enhance the "self-filling effect" to control bleeding, and achieve the effect of saving lives.

Description

A pelvic volume control external fixation device

Technical Field

The utility model belongs to the field of medical instruments, and in particular relates to a pelvic volume control external fixation device.

Background Art

Pelvic fractures are a common injury in current trauma, and the mortality rate of patients with hemodynamically unstable pelvic fractures is as high as 40-50%. Pelvic fracture bleeding generally comes from three sources, namely the pelvic venous plexus, fracture ends, and vascular injury.

Studies have shown that venous injury bleeding accounts for 80% of pelvic fractures. For primary hospitals and pre-hospital emergency care, timely hemostasis and reduction of blood loss can provide valuable time to save patients' lives. Currently, the most widely used is a simple pelvic belt, which can form blood clots and reduce bleeding while stabilizing fractures.

The mechanism of action of pelvic girdle fixation: (1) close the open book injury and reduce the pelvic volume to achieve compression hemostasis; (2) stabilize the pelvic ring and promote blood clot formation; (3) promote blood return to the lower limbs, which has an effect similar to autologous blood transfusion.

However, these measures can only prevent secondary displacement of the fracture ends, and have no additional benefits for bleeding from the fracture ends and pelvic blood vessels, nor can they reduce the pelvic volume. Since pelvic bleeding has a "self-filling effect", if the pelvic volume can be effectively reduced, the effect of controlling pelvic bleeding will be more obvious.

Severe pelvic artery bleeding can be treated through interventional methods, but there is currently no effective means to control slow venous bleeding and bone surface bleeding. Some people advocate the use of pelvic packing technology for compression hemostasis, which is essentially to compress the bone surface and venous ruptures and use the coagulation mechanism to stop bleeding. However, this method does not conform to the current minimally invasive concept, and open surgery has many postoperative complications and requires a second operation to remove it. The problem of infection is also prominent.

Utility Model Content

In view of the problem that current measures can only prevent secondary displacement of fracture ends, have no more benefits for bleeding of fracture ends and pelvic blood vessels, and cannot reduce the pelvic volume, the utility model provides a pelvic volume control external fixation device.

The utility model solves the technical problem by adopting the following scheme: a pelvic volume control external fixation device, comprising a rear pelvic trousers and a front pelvic trousers, wherein the rear pelvic trousers match the waist and buttocks of the human body, and the inner side of the rear pelvic trousers is respectively provided with a kidney expansion balloon and a sciatic expansion balloon corresponding to the positions of the kidney and the ischium of the human body, and the front pelvic trousers match the abdomen and genitals of the human body, and the inner side of the front pelvic trousers is symmetrically provided with two abdominal expansion balloons, and the abdominal expansion balloons are divided into an upper anterior superior iliac spine inner side expansion balloon and a lower inguinal expansion balloon, and the upper anterior superior iliac spine inner side expansion balloon and the lower inguinal expansion balloon correspond to the positions of the inner side of the anterior superior iliac spine and the groin of the human body respectively.

The rear pelvic pants and the front pelvic pants are connected together by a butt strap to form a complete pelvic bottom pants.

The back of the rear pelvic pants is connected to the perineum belt, which goes around the perineum and is connected to the front pelvic pants through an adhesive belt. The perineum belt is respectively provided with a pelvic floor expansion balloon and an obturator expansion balloon at positions corresponding to the pelvic floor and obturator of the human body.

The kidney expansion balloon, the sciatic expansion balloon, the abdominal expansion balloon, the pelvic floor expansion balloon and the obturator expansion balloon are all provided with valve bodies.

As a preferred technical solution of the utility model, a pubic reserved hole is opened at the position of the perineum belt corresponding to the pubic part of the human body.

As a preferred technical solution of the utility model, the butt strap includes a waist side strap, one end of the waist side strap is connected to the waist side of the rear pelvic pants, the other end of the rear pelvic pants is connected to the waist side male Velcro, the waist side male Velcro is adhered to the waist side female Velcro, and the waist side female Velcro is adhered and connected to the waist side of the front pelvic pants.

As a preferred technical solution of the utility model, the inner leg of the rear pelvic pants is connected with a male Velcro on the inner leg side, and the inner leg of the front pelvic pants is connected with a female Velcro on the inner leg side, and the male Velcro on the inner leg side is fitted with the female Velcro on the inner leg side.

As a preferred technical solution of the utility model, the adhesive tape includes a lower male Velcro and a lower female Velcro, the lower male Velcro is connected to the front end of the perineal belt, the lower female Velcro is connected to the front side of the front pelvic pants, and the lower male Velcro is adhered to the lower female Velcro.

As a preferred technical solution of the utility model, the kidney expansion balloon, the sciatic expansion balloon, the abdominal expansion balloon, the pelvic floor expansion balloon and the obturator expansion balloon are all air bags, and the valve body is an inflation and deflation valve.

As a preferred technical solution of the utility model, the kidney expansion balloon, the sciatic expansion balloon, the abdominal expansion balloon, the pelvic floor expansion balloon and the obturator expansion balloon are all water balloons, and the valve body is a water valve.

As a preferred technical solution of the utility model, the front pelvic pants are provided with an abdominal opening at a position corresponding to the abdomen, and a detachable abdomen shielding cloth is arranged in the abdominal opening.

As a preferred technical solution of the utility model, the bottom end of the abdomen-covering cloth is connected to the front pelvic pants, and the edge of the abdomen-covering cloth is connected to the inner edge of the abdomen opening through a zipper.

As a preferred technical solution of the utility model, the abdominal expansion balloon is detachably mounted on the inner side of the front pelvic pants, and the obturator expansion balloon is detachably mounted on the perineal belt.

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

1. The utility model is based on the pelvic volume control theory and the "self-filling effect". Through the soft channel of the pelvic anatomy, the expansion balloon at the corresponding position is used to press inward, so as to achieve the goal of quickly and easily reducing the pelvic volume. Without increasing the patient's wound, the pelvic volume expansion caused by severe pelvic trauma can be quickly controlled, thereby limiting the spread of hematoma, increasing the pressure of hematoma, and enhancing the "self-filling effect" to control bleeding, thereby achieving the effect of saving lives.

2. The utility model compresses the natural cavity of the pelvis to reduce the expansion of the pelvic volume caused by the fracture of the pelvic ring. By reducing the pelvic volume, the hematoma caused by pelvic bleeding will produce greater pressure on the basis of the original squeezing force, and the hemostatic effect on the bleeding point will be more obvious, producing a stronger "self-filling effect". At the same time, it will not cause additional harm to the patient and is simple and easy to operate.

3. The utility model can provide strong external fixation for pelvic fractures, especially "open book fractures", and can effectively reduce bleeding caused by fracture ends.

4. The utility model can cover the natural cavity of the pelvis by arranging expansion balloons at various positions, reduce the volume of the pelvic cavity by gas pressurization, enhance the "self-filling effect", and effectively reduce pelvic venous plexus bleeding.

5. The utility model is simple and easy to operate, and convenient for training. It can be used in primary hospitals and pre-hospital emergency treatment to improve the treatment rate of pelvic fractures.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view of the structure of the utility model;

Figure 2 is a rear view schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the front cross-sectional structure of the utility model;

FIG4 is a schematic diagram of the rear cross-sectional structure of the utility model.

In the figure: 1 rear pelvic pants, 2 front pelvic pants, 3 perineum belt, 4 abdominal expansion balloon, 5 kidney expansion balloon, 6 abdominal masking cloth, 7 sciatic expansion balloon, 8 pelvic floor expansion balloon, 9 pubic reserved hole, 10 obturator expansion balloon, 11 waist side male Velcro, 12 waist side belt, 13 lower side male Velcro, 14 waist side female Velcro, 15 inner leg side male Velcro, 16 inner leg side female Velcro, 17 lower side female Velcro, 18 valve body, 19 zipper.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings and embodiments.

Please refer to Figures 1-4. The utility model provides a technical solution for a pelvic volume control external fixation device:

Embodiment 1:

As shown in Figures 1-4, the rear pelvic pants 1 and the front pelvic pants 2 are included. The rear pelvic pants 1 match the waist and buttocks of the human body. The inner side of the rear pelvic pants 1 is respectively provided with a kidney expansion balloon 5 and a sciatic expansion balloon 7 corresponding to the positions of the kidneys and ischium of the human body. There are two sciatic expansion balloons 7, one on the left and one on the right. By providing the kidney expansion balloon 5, pressure can be applied to the kidney area from the back to reduce the volume of the posterior pararenal space, the perirenal space, and even the anterior pararenal space, so that the spread of hematoma can be controlled to achieve a hemostatic effect. By providing the sciatic expansion balloon 7, pressure is applied to the large and small sciatic foramen areas, and the pelvic volume is reduced by compression, which also has a compressive hemostatic effect.

The front pelvic pants 2 match the abdomen and genitals of the human body. Two abdominal expansion balloons 4 are symmetrically arranged on the inner side of the front pelvic pants 2. The abdominal expansion balloons 4 are fixed on the front pelvic pants 2. The abdominal expansion balloons 4 are divided into an upper anterior superior iliac spine inner expansion balloon and a lower inguinal expansion balloon. The upper anterior superior iliac spine inner expansion balloon and the lower inguinal expansion balloon correspond to the positions of the inner side of the anterior superior iliac spine and the groin of the human body respectively. By setting the upper anterior superior iliac spine inner expansion balloon, it is used to compress the inner side of the anterior superior iliac spine, and the pelvic hematoma can spread to the diaphragm and the lower part of the iliac crest. The anterior superior iliac spine inner balloon reduces the volume of the gap by pressurizing, increases the hematoma pressure, and helps to stop bleeding. By setting the lower inguinal expansion balloon, it is used to compress the groin area, reduce the volume and prevent the spread of hematoma.

The rear pelvic pants 1 and the front pelvic pants 2 are connected together by a docking belt to form a complete pelvic underpants, the docking belt includes a waist side belt 12, one end of the waist side belt 12 is connected to the waist side of the rear pelvic pants 1, the other end of the rear pelvic pants 1 is connected with a waist side male Velcro 11, the waist side male Velcro 11 is pasted with a waist side female Velcro 14, the waist side female Velcro 14 is pasted and connected to the waist side of the front pelvic pants 2, the inner leg part of the rear pelvic pants 1 is connected with an inner leg side male Velcro 15, the inner leg part of the front pelvic pants 2 is connected with an inner leg side female Velcro 16, the inner leg side male Velcro 15 is pasted with the inner leg side female Velcro 16, and its function is: the rear pelvic pants 1 and the front pelvic pants 2 are designed to be separated, which is convenient for patients to wear.

The back of the rear pelvic pants 1 is connected to the perineal belt 3, the perineal belt 3 bypasses the perineum and is connected to the front pelvic pants 2 through an adhesive tape, the adhesive tape includes a lower male Velcro 13 and a lower female Velcro 17, the lower male Velcro 13 is connected to the front end of the perineal belt 3, the lower female Velcro 17 is connected to the front side of the front pelvic pants 2, the lower male Velcro 13 is adhered to the lower female Velcro 17, and a pubic reserved hole 9 is opened at the position of the perineal belt 3 corresponding to the pubic region of the human body. By setting the pubic reserved hole 9, the reproductive organs are prevented from being compressed.

The perineal belt 3 is provided with a pelvic floor expansion balloon 8 and an obturator expansion balloon 10 at positions corresponding to the pelvic floor and obturator foramen of the human body, respectively. There are two obturator expansion balloons 10, one on the left and one on the right, respectively. The obturator expansion balloon 10 is fixed on the perineal belt 3. By providing the pelvic floor expansion balloon 8, pelvic bleeding tends to spread to the pelvic floor. The pelvic floor expansion balloon 8 can be used to give a certain pressure to the pelvic floor soft tissue to prevent the pelvic volume from expanding through the pelvic floor, thereby reducing the pelvic volume and compressing and stopping bleeding. By providing the obturator expansion balloon and compressing the obturator area, it can not only prevent the hematoma from expanding through the area and reduce the pelvic volume, but also play a role in compressing and stopping bleeding.

The renal expansion balloon 5, the sciatic expansion balloon 7, the abdominal expansion balloon 4, the pelvic floor expansion balloon 8 and the obturator expansion balloon 10 are all provided with a valve body 18. The renal expansion balloon 5, the sciatic expansion balloon 7, the abdominal expansion balloon 4, the pelvic floor expansion balloon 8 and the obturator expansion balloon 10 are all airbags, and the valve body 18 is an inflation and deflation valve.

During specific use, the utility model is a pelvic volume control external fixation device. First, the rear pelvic pants 1 are brought into contact with the patient's waist and buttocks, and then the front pelvic pants 2 are covered on the patient's abdomen and genitals. Then, the waist side male Velcro 11 is pasted with the waist side female Velcro 14, and the inner leg side male Velcro 15 is pasted with the inner leg side female Velcro 16. After that, the perineal belt 3 is passed around the patient's genitals, and the lower side male Velcro 13 is pasted with the lower side female Velcro 17, and then the wearing of the pelvic pants 1 and the front pelvic pants 2 is completed. Finally, according to the patient's fracture situation, the corresponding airbag is inflated using the inflation and deflation valve. By pressing inward, the pelvic volume can be quickly and easily reduced. Without increasing the patient's wound, the pelvic volume expansion caused by severe pelvic trauma can be quickly controlled, the spread of hematoma can be limited, the pressure of hematoma can be increased, and the "self-filling effect" can be enhanced to control bleeding, thereby achieving the effect of saving lives.

Embodiment 2:

On the basis of Example 1, the similarities between this embodiment and Example 1 are not repeated here, and the differences are as follows: the renal expansion balloon 5, the sciatic expansion balloon 7, the abdominal expansion balloon 4, the pelvic floor expansion balloon 8 and the obturator expansion balloon 10 are all water balloons, and the valve body 18 is a water valve.

Embodiment three:

Based on the first embodiment, the similarities between this embodiment and the first embodiment are not repeated here, and the differences are as follows: in addition to the method of gluing and connecting the male Velcro and the female Velcro in the first embodiment, the mother-child buckle fastening method can also be used for connection.

Embodiment 4:

On the basis of Example 1, the similarities between this embodiment and Example 1 are not repeated here, and the differences are as follows: as shown in Figures 1 and 4: the front pelvic pants 2 are provided with an abdominal opening at the position corresponding to the abdomen, and a detachable abdominal masking cloth 6 is provided in the abdominal opening, the bottom end of the abdominal masking cloth 6 is connected to the front pelvic pants 2, and the edge of the abdominal masking cloth 6 is connected to the inner edge of the abdominal opening through a zipper 19. By unzipping the zipper 19, the abdominal masking cloth 6 can be opened, and then the patient's abdominal condition can be checked, which further facilitates the treatment of the patient.

Embodiment five:

On the basis of Example 1, the similarities between this embodiment and Example 1 are not repeated here, and the differences are as follows: the abdominal expansion balloon 4 is detachably mounted on the inner side of the front pelvic pants 2, and the inner side of the front pelvic pants 2 is a female adhesive surface, and the side of the abdominal expansion balloon 4 close to the front pelvic pants 2 is provided with a male adhesive surface, which can then be adjusted according to the injured part of the patient to better compress and reduce the pelvic volume to achieve the purpose of hemostasis.

The obturator expansion balloon 10 is detachably mounted on the perineal belt 3, the inner side of the perineal belt 3 is a female adhesive surface, and the obturator expansion balloon 10 is provided with a male adhesive surface on the side close to the perineal belt 3, which can then be adjusted according to the injured part of the patient to better compress and reduce the pelvic volume to achieve the purpose of hemostasis.

By designing the abdominal expansion balloon 4 and the obturator expansion balloon 10 to be detachable, the abdominal expansion balloon 4 and the obturator expansion balloon 10 may not correspond to the required compression position for patients with different body shapes. They are designed to be detachable and can be adjusted according to the patient's body shape and the patient's injured part to better compress and reduce the pelvic volume to achieve the purpose of hemostasis.

Claims (10)

1. An external fixation device for pelvic volume control, characterized in that: the pair of trousers comprises a back pelvis trousers and a front pelvis trousers, wherein the back pelvis trousers are matched with the waist and the buttocks of a human body, kidney expansion sacculus and ischium expansion sacculus are respectively arranged at the positions of the inner side surface of the back pelvis trousers corresponding to the kidney and the ischium of the human body, the front pelvis trousers are matched with the abdomen and the pudendum of the human body, two abdomen expansion sacculus are symmetrically arranged on the inner side surface of the front pelvis trousers, the abdomen expansion sacculus is divided into an upper ilium front upper spine inner side expansion sacculus and a lower inguinal expansion sacculus, and the upper ilium front upper spine inner side expansion sacculus and the lower inguinal expansion sacculus respectively correspond to the positions of the upper ilium front upper spine inner side and the groin of the human body;

The back pelvis trousers and the front pelvis trousers are connected together through butt joint belts to form a complete pelvis underpants;

the back of the back pelvis trousers is connected with a perineum belt, the perineum belt bypasses the perineum and is connected with the front pelvis trousers through an adhesive tape, and the positions of the perineum belt corresponding to the pelvic floor and the obturator foramens of the human body are respectively provided with a pelvic floor expanding balloon and an obturator foramen expanding balloon;

Valve bodies are arranged on the kidney part expansion saccule, the ischium part expansion saccule, the abdomen expansion saccule, the pelvic floor expansion saccule and the obturator part expansion saccule.

2. The external pelvic volume control fixation apparatus of claim 1, wherein: the perineum belt is provided with a pudendum preformed hole at a position corresponding to the pudendum of a human body.

3. The external pelvic volume control fixation apparatus of claim 1, wherein: the butt joint area includes the waist side area, and the one end and the waist side of back pelvis trousers of waist side area are connected, and the other end of back pelvis trousers is connected with the public magic subsides of waist side, and the public magic subsides of waist side paste with the female magic subsides of waist side, and the female magic subsides of waist side paste is connected the waist side of preceding pelvis trousers.

4. A pelvic volume control external fixation apparatus according to any one of claims 1-3, wherein: the inner leg of the back pelvis trousers is connected with an inner leg side male velcro, the inner leg of the front pelvis trousers is connected with an inner leg side female velcro, and the inner leg side male velcro is attached to the inner leg side female velcro.

5. The external pelvic volume control fixation apparatus of claim 1, wherein: the adhesive tape comprises a downside male velcro and a downside female velcro, wherein the downside male velcro is connected to the front end of the perineum belt, the downside female velcro is connected to the front surface of the front pelvis trousers, and the downside male velcro is adhered to the downside female velcro.

6. The external pelvic volume control fixation apparatus of claim 1, wherein: the kidney part expansion saccule, the ischium part expansion saccule, the abdomen expansion saccule, the pelvic floor expansion saccule and the obturator part expansion saccule are all air bags, and the valve body is an inflation and deflation valve.

7. The external pelvic volume control fixation apparatus of claim 1, wherein: the kidney part expansion saccule, the ischium part expansion saccule, the abdomen expansion saccule, the pelvic floor expansion saccule and the obturator part expansion saccule are all water sacs, and the valve body is a water valve.

8. The external pelvic volume control fixation apparatus of claim 1, wherein: the abdomen opening is formed in the position, corresponding to the abdomen, of the front pelvis trousers, and detachable abdomen shielding cloth is arranged in the abdomen opening.

9. The external pelvic volume control fixation apparatus of claim 8, wherein: the bottom end of the abdomen shielding cloth is connected with the front pelvis trousers, and the edge of the abdomen shielding cloth is connected with the inner edge of the abdomen opening through a zipper.

10. The external pelvic volume control fixation apparatus of claim 1, wherein: the abdomen expanding saccule is detachably arranged on the inner side surface of the front pelvis trousers, and the obturator expanding saccule is detachably arranged on the perineum belt.