Traction pad for spinal cord injury

Abstract

The invention discloses a traction pad for spinal cord injury in the technical field of medical traction pads, comprising a shoulder pillow portion and a head pillow portion; an arc-shaped groove is provided on the shoulder pillow portion, a first airbag is provided on both sides of the groove, a ring-shaped second airbag is provided on the head pillow portion, a fastener is provided at the center line of the second airbag, the fastener separates the second airbag into a first side airbag and a second side airbag, and a ventilated portion is formed between the first side airbag and the second side airbag; a first pressure sensor and a second pressure sensor are respectively installed in the first side airbag and the second side airbag, and the first side airbag and the second side airbag are both connected to an electromagnetic pressure relief valve; a controller is also included, the controller is electrically connected to the first pressure sensor and the second pressure sensor, the controller is electrically connected to an air pump and a first reversing valve; the electromagnetic pressure relief valve is electrically connected to the controller. The invention has a simple structure and can automatically adjust the deflection of the patient's head.

Description

Technical Field

[0001] The invention belongs to the technical field of medical traction pads, in particular to a traction pad for spinal cord injury. Background Art

[0002] At present, skull traction is often used to treat cervical traumatic diseases, cervical fractures and dislocations, especially fractures and dislocations accompanied by spinal cord injury. Since Crutchfield reported it in 1933, skull traction has been widely used in clinical practice. After traction, the dislocated cervical vertebra can be repositioned, thereby reducing or eliminating the pressure on the spinal cord, and preventing the movement of fractured vertebrae and aggravating spinal cord injury. This method is still an effective treatment for cervical fracture and spinal cord injury.

[0003] For example, the Chinese patent, the announcement number is: CN 211560576 U A body position control device for skull traction, which includes a base plate and a shoulder plate, a head pad for back pillow decompression is installed on the top surface of the base plate, one end of the base plate is fixed to the traction bed head, and the other end is assembled with the shoulder plate; the top surface of the shoulder plate is provided with an arc groove for accommodating and fixing the neck, which conforms to the physiological curvature of the cervical spine. The shoulder plate has three different models, which can be selected as needed. When in use, the patient's head is against the head pad, the neck is placed in the groove, and the shoulder is against the shoulder plate. The shoulder plate plays a role in increasing resistance, which can increase the patient's counter-traction force during skull traction. Even if the weight of the counterweight increases, the patient's effective traction position can be maintained continuously, and the patient's pain can be relieved, which helps the patient to quickly reset; the neck is placed in the groove to limit the movement of the neck and maintain the effective traction angle. In addition, the arc design conforming to the neck can improve the patient's comfort; the head pad improves the patient's comfort while also reducing the incidence of head pressure sores.

[0004] The problem with the above-mentioned prior art is that the patient's neck is restricted by the arc-shaped groove, and the patient's unconscious head deflection may cause the patient's neck to deflect, and then contact the side wall of the arc-shaped groove to cause secondary injury. At the same time, there is no corresponding technical means to adjust the angle of head deflection, which may easily cause the traction angle to change and reduce the traction effect. Summary of the invention

[0005] The purpose of the present invention is to provide a traction pad for spinal cord injury, so as to adjust the unconscious deflection of the patient's head and reduce the probability of secondary injury to the patient's neck.

[0006] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a traction pad for spinal cord injury, comprising a shoulder pillow portion and a head pillow portion;

[0007] An arc-shaped groove is provided on the shoulder pillow portion, and first airbags are provided on both sides of the groove. A ring-shaped second airbag is provided on the head pillow portion, and a fastener is provided at the center line of the second airbag. The fastener separates the second airbag into a first side airbag and a second side airbag, and a ventilated portion is formed between the first side airbag and the second side airbag.

[0008] A first pressure sensor and a second pressure sensor are installed in the first side airbag and the second side airbag respectively, and the first side airbag and the second side airbag are both connected to an electromagnetic pressure relief valve;

[0009] It also includes a controller, the controller is electrically connected to the first pressure sensor and the second pressure sensor, the controller is electrically connected to the air pump and the first reversing valve, the inlet of the first reversing valve is connected to the air pump, one outlet of the first reversing valve is connected to the first side airbag, and the other outlet of the first reversing valve is connected to the second side airbag;

[0010] The electromagnetic pressure relief valve is electrically connected to the controller.

[0011] The following beneficial effects are achieved by adopting the above scheme: (1) In the present invention, the first airbag is used to limit the patient's neck, which can provide a limiting effect and reduce the compressive force of the hard material on the patient's neck. The breathable portion formed by the first side airbag and the second side airbag can reduce the probability of pressure sores on the neck and can form a certain degree of ventilation. At the same time, the annular second airbag is used to support the patient's head. The annular second airbag has a breathable space, which reduces the probability of pressure sores on the head and improves the comfort of the patient during spinal cord injury traction.

[0012] (2) In the present invention, when the patient's head is deflected toward the first side airbag or the second side airbag, the first pressure sensor or the second pressure sensor will send a signal of increased pressure to the controller, and the controller will start the air pump to deliver corresponding gas toward the first side airbag or the second side airbag with increased pressure, so that the first side airbag or the second side airbag will expand, and the patient's head will be deflected back to its original position. Of course, in order to speed up this action, the controller will control the first side airbag or the second side airbag with reduced pressure to discharge a certain amount of gas, so that the patient's head will be deflected toward the first side airbag or the second side airbag with reduced volume. In this way, the patient's head is straightened, and the problem of adjusting the deflection of the patient's head is solved.

[0013] Furthermore, a massage part located on both sides of the groove is provided on the side of the shoulder pillow away from the head pillow part, the massage component is connected to a delivery pump, the massage part includes a massage group arranged on the shoulder pillow part, the massage groups are evenly distributed vertically along the shoulder pillow part, the end of the airflow direction of the previous massage group is connected to the front end of the airflow direction of the next massage group through a first control valve, the massage group includes a plurality of cavities arranged along the length direction of the shoulder pillow part, an elastic part is horizontally slidably connected in the cavity, a first elastic part is provided between the elastic part and the cavity, adjacent cavities are connected close to a side of the first elastic part, and the control valve is electrically connected to the controller.

[0014] Beneficial effect: In the present invention, gas is delivered to the uppermost massage group through a delivery pump. The uppermost massage group is acted upon by the gas to push the elastic shaft toward the patient's shoulder, thereby achieving the purpose of the first group of massages. Then the controller opens the first control valve, and the gas enters the next massage group. Similarly, the next massage group also massages the patient's shoulders, thereby achieving the purpose of continuous massage to relieve the patient's shoulders.

[0015] Furthermore, the headrest portion includes a headrest plate, support shafts are arranged on both sides of the bottom of the headrest plate, the second airbag is installed on the top of the headrest plate, and the support shafts are connected with adjustment mechanisms, which enable the support shafts to slide vertically and horizontally along the shoulder rest portion.

[0016] Beneficial effect: The height of the second airbag and the distance between the second airbag and the shoulder pillow can be adjusted through the adjustment mechanism to meet the needs of different patients.

[0017] Furthermore, the adjustment mechanism includes an adjustment cavity arranged on the shoulder pillow portion, a guide plate is arranged in the adjustment cavity, a spline is vertically slidably connected on the guide plate, and the spline is horizontally slidably matched with the support shaft.

[0018] Beneficial effect: The spline is guided by the guide plate, and then the support shaft is guided to achieve the purpose of vertical sliding, and the spline and the support shaft slide horizontally, so that the support shaft can slide horizontally on the basis of vertical sliding without interference.

[0019] Furthermore, the adjustment mechanism also includes support plates located above and below the support shaft, the support plates include an outer plate fixed to the shoulder pillow portion, the outer plate is hollow and has an opening at the top, an inner plate is vertically slidably connected to the outer plate, a second elastic member is arranged between the inner plate and the outer plate, a third pressure sensor is installed in the outer plate, and the third pressure sensor is electrically connected to the controller.

[0020] Beneficial effect: Different diameters of the neck will result in different depths in the groove, and thus different heights of the head. In order to prevent the first airbag from failing to limit the patient's neck well, a third pressure sensor is used to detect the distance the head moves downward, and then a certain amount of gas is filled into the first airbag to ensure that the patient's neck is well limited.

[0021] Furthermore, a reinforcing plate is fixedly connected to the shoulder pillow portion, a telescopic shaft is fixedly connected to the reinforcing plate, the telescopic shaft comprises an outer shaft and an inner shaft, the inner shaft is located inside the outer shaft and vertically slides with the outer shaft, a third elastic member is fixedly connected to the bottom of the inner shaft, the third elastic member is fixedly connected to the outer shaft, and an end of the inner shaft away from the third elastic member slides horizontally with the support shaft.

[0022] Beneficial effect: The cooperation between the reinforcement plate and the telescopic shaft is such that the headrest plate of the headrest part is stably supported.

[0023] Furthermore, a slide groove is provided on the support shaft, and a roller located in the slide groove is rotatably connected to the inner shaft, and the inner shaft is horizontally slidably matched with the support shaft through the roller and the slide groove.

[0024] Beneficial effect: Through the sliding cooperation between the inner shaft and the supporting shaft, the horizontal sliding of the headrest plate and the second airbag is facilitated, and a certain support is guaranteed.

[0025] Further, the first side airbag and the second side airbag are both connected to the first reversing valve through the second control valve, the first airbag is connected to the first reversing valve through the second reversing valve, and the controller is electrically connected to the second reversing valve and the second control valve.

[0026] Beneficial effect: In this solution, the controller is used to control the second reversing valve, so that the first airbag can be connected to the first reversing valve, and a certain amount of gas is input through the air pump. At this time, the second control valve is closed. Of course, the second reversing valve and the second control valve can also be opened to synchronously input gas to the first airbag, the second side airbag and the first side airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of a traction pad for spinal cord injury in an embodiment of the present invention.

[0028] Figure 2 It is a side view of the traction pad for spinal cord injury in an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of the structure of the support plate in an embodiment of the present invention.

[0030] Figure 4 Schematic diagram of the structure of the adjustment mechanism in the embodiment of the present invention.

[0031] Figure 5 Schematic diagram of the structure of the massage chamber in the embodiment of the present invention.

[0032] Figure 6 Schematic diagram of a circuit of a traction pad for spinal cord injury in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The figure marks in the drawings of the specification include: air pump 11, first reversing valve 12, electromagnetic pressure relief valve 13, support shaft 14, headrest plate 15, first pressure sensor 16, air permeable cavity 17, second airbag 18, second reversing valve 19, second control valve 20, shoulder pillow 21, first airbag 22, groove 23, elastic shaft 24, first spring 25, cavity 26, first control valve 261, spline 27, guide plate 28, support plate 29, outer plate 291, inner plate 292, second spring 293, third pressure sensor 294, telescopic shaft 31, roller 32, slide groove 33.

[0035] The present application embodiment provides a traction pad for spinal cord injury, which is basically as shown in the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, it includes a shoulder rest portion 21 and a head rest portion.

[0036] An arc-shaped groove 23 is provided on the shoulder pillow portion 21, and first air bags 22 are provided on both sides of the groove 23. A plurality of massage groups located on both sides of the groove 23 are provided on the left side of the shoulder pillow portion 21, and the plurality of massage groups are evenly distributed along the vertical direction of the shoulder pillow portion 21. The massage group includes a plurality of adjacent cavities 26, and an elastic shaft 24 is vertically slidably connected in the cavity 26. A first elastic member is provided between the elastic shaft 24 and the cavity 26, and the first elastic member is a first spring 25. One end of the first spring 25 is fixedly connected to the elastic shaft 24, and the other end of the first spring 25 is fixedly connected to the shoulder pillow portion 21. Adjacent cavities 26 are connected. In this embodiment, the uppermost massage group is connected to the air pump 11. When gas flows in the massage group, the end of the gas flow direction of the previous massage group is connected to the front end of the gas flow direction of the next massage group through the first control valve 261, that is, as shown in the attached Figure 5 As shown. The leftmost cavity 26 of the top massage group is connected to the air delivery pump 11, and the rightmost cavity 26 of the bottom massage group is connected to the outside. In this way, when gas enters the top massage group and flows from left to right, the next massage group flows from right to left until the gas is discharged from the rightmost cavity 26 of the bottom massage group.

[0037] The headrest portion includes a headrest plate 15, and support shafts 14 are provided on both sides of the bottom of the headrest plate 15. A second annular airbag 18 is installed on the top of the headrest plate 15. A fastener is provided on the second airbag 18. The fastener is an elastic rope or a pull rope or other rope to separate the second airbag 18 into a first side airbag and a second side airbag. A breathable portion 17 is formed between the first side airbag and the second side airbag. The breathable portion 17 can provide a certain degree of ventilation for the patient's neck. A first pressure sensor 16 and a second pressure sensor are installed in the first side airbag and the second side airbag, respectively. The first side airbag and the second side airbag are both connected to an electromagnetic pressure relief valve 13.

[0038] In this embodiment, a controller is also included, which is electrically connected to the first reversing valve 12 and the air pump 11. The inlet of the first reversing valve 12 is connected to the air pump 11, an outlet of the first reversing valve 12 is connected to the first side airbag, and an outlet of the first reversing valve 12 is connected to the second side airbag. The controller is electrically connected to the first pressure sensor 16 and the second pressure sensor.

[0039] In this embodiment, the support shafts 14 are connected with an adjustment mechanism, which includes an adjustment cavity provided in the shoulder pillow portion 21, a guide plate 28 is fixedly installed in the adjustment cavity, a spline 27 is vertically slidably connected to the guide plate 28, and the spline 27 is vertically slidably connected to the support shaft 14. The adjustment mechanism also includes support plates 29 located above and below the support shaft 14, and the two support plates 29 are opposite to each other. The support plate 29 includes an outer plate 291 fixed to the shoulder pillow portion 21, the outer plate 291 is hollow and has an upper opening, and the outer plate 291 is vertically slidably connected to the inner plate 292, and a second elastic member is fixedly connected between the inner plate 292 and the outer plate 291, and the second elastic member is a second spring 293. A third pressure sensor 294 is installed in the outer plate 291, and the third pressure sensor 294 is electrically connected to the controller. A reinforcing plate is fixedly connected to the shoulder pillow portion 21, and a telescopic shaft 31 is fixedly connected to the reinforcing plate. The telescopic shaft 31 includes an outer shaft and an inner shaft. The inner shaft is located inside the outer shaft and vertically slides with the outer shaft. A third elastic member is fixedly connected to the bottom of the inner shaft, and the third elastic member is fixedly connected to the outer shaft. An end of the inner shaft away from the third elastic member slides horizontally with the support shaft 14. A sliding groove 33 is opened on the support shaft 14, and a roller 32 located in the sliding groove 33 is rotatably connected to the inner shaft. The inner shaft slides horizontally with the support shaft 14 through the roller 32 and the sliding groove 33.

[0040] In this embodiment, the first side airbag and the second side airbag are both connected to the first reversing valve 12 through the second control valve 20, the first airbag 22 is connected to the first reversing valve 12 through the second reversing valve 19, and the controller is electrically connected to the second reversing valve 19 and the second control valve 20.

[0041] The specific process is as follows:

[0042] When adapting to the neck of different patients, the operator can pull the headrest plate 15 horizontally so that the headrest plate 15 and the support shaft 14 can slide on the shoulder pillow 21 to adjust the length. When the patient's head is placed on the second airbag 18, under the action of gravity, the headrest plate 15 will press the support shaft 14 downward, and the support shaft 14 will press the second spring 293 through the inner plate 292 and increase the air pressure in the outer plate 291. The third pressure sensor 294 sends a corresponding pressure signal to the controller, as shown in the attached figure. Figure 1 As shown, if the pressure on the first airbag 22 below is too large (then the pressure on the supporting shaft 14 below is large), it means that the patient's neck is biased toward the lower airbag, and the controller connects the first solenoid valve and the second solenoid valve (closes the second control valve 20 connected to the second side airbag), and gas is filled into the first airbag 22 below. When the first airbag 22 wraps or supports the patient's neck, the patient's neck is corrected.

[0043] When the patient's head is deflected to a certain extent, for example: the pressure on the second side airbag increases ( Figure 1 The second pressure sensor sends a corresponding pressure signal to the controller, and the controller controls the air pump 11 and the first reversing valve 12 to communicate with the second side airbag. At this time, the second reversing valve 19 is connected to the outside, and the second control valve 20 is opened, and gas is filled into the second side airbag to push the patient's head back to the correct position. Of course, in order to speed up the correction of the patient's head, the controller will also control the first control valve 261 to open to discharge the gas in the first side airbag ( Figure 1 The uppermost side airbag is adjusted in this way until the pressure values ​​monitored by the first pressure sensor 16 and the second pressure sensor are substantially equal. In this way, the purpose of automatically adjusting the deflection direction of the patient's head and the deflection direction of the neck is achieved.

[0044] In this embodiment, when the patient's shoulders need to be massaged, the operator controls the air pump 11 to work through the controller (the air pump 11 is electrically connected to the controller), as shown in the attached Figure 5 As shown, the air pump 11 inputs gas to the uppermost massage group, that is, inputs gas to the uppermost cavity 26, and the gas gradually enters the cavity 26 and pushes the elastic shaft 24 to move toward the patient's shoulder to massage the patient's shoulder. At this time, the air pump 11 is closed and the first control valve 261 is opened, and part of the gas enters the next massage group, and part of the gas flows toward the air pump 11, then the air pressure entering the next massage group is reduced, and the stroke of the elastic shaft 24 is reduced, then the massage intensity of the patient's shoulder is reduced, and in this way, the patient's shoulder is massaged with different intensities in the form of step-by-step massage to simulate artificial massage.

[0045] Of course, the gas can also be continuously input into the cavity 26 through the air pump 11. At this time, after the uppermost elastic shaft 24 massages the patient's shoulders, the uppermost first control valve 261 is opened, and the gas enters the cavity 26 of the next massage group. In this way, the second layer of massage is performed until the last layer is reached and the gas is exhausted. The exhausted gas can also be drained to the ventilating portion 17 through a pipeline to further ventilate the patient's neck, thereby achieving the purpose of step-by-step massage.

[0046] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A traction pad for spinal cord injury, characterized in that: including a shoulder rest portion and a head rest portion; An arc-shaped groove is provided on the shoulder pillow portion, and first airbags are provided on both sides of the groove. A ring-shaped second airbag is provided on the head pillow portion, and a fastener is provided at the center line of the second airbag. The fastener separates the second airbag into a first side airbag and a second side airbag, and a ventilated portion is formed between the first side airbag and the second side airbag. A first pressure sensor and a second pressure sensor are installed in the first side airbag and the second side airbag respectively, and the first side airbag and the second side airbag are both connected to an electromagnetic pressure relief valve; It also includes a controller, the controller is electrically connected to the first pressure sensor and the second pressure sensor, the controller is electrically connected to the air pump and the first reversing valve, the inlet of the first reversing valve is connected to the air pump, one outlet of the first reversing valve is connected to the first side airbag, and the other outlet of the first reversing valve is connected to the second side airbag; The electromagnetic pressure relief valve is electrically connected to the controller; The headrest portion includes a headrest plate, support shafts are arranged on both sides of the bottom of the headrest plate, the second airbag is installed on the top of the headrest plate, and the support shafts are connected with adjustment mechanisms, which enable the support shafts to slide vertically and horizontally along the shoulder rest portion; The adjustment mechanism comprises an adjustment cavity arranged on the shoulder pillow portion, a guide plate is arranged in the adjustment cavity, a spline is vertically slidably connected on the guide plate, and the spline is horizontally slidably matched with the support shaft; The adjustment mechanism also includes support plates located above and below the support shaft, the support plates include an outer plate fixed to the shoulder pillow portion, the outer plate is hollow and has an upper opening, an inner plate is vertically slidably connected to the outer plate, a second elastic member is provided between the inner plate and the outer plate, a third pressure sensor is installed in the outer plate, and the third pressure sensor is electrically connected to the controller; A reinforcing plate is fixedly connected to the shoulder pillow portion, a telescopic shaft is fixedly connected to the reinforcing plate, the telescopic shaft comprises an outer shaft and an inner shaft, the inner shaft is located inside the outer shaft and vertically slides with the outer shaft, a third elastic member is fixedly connected to the bottom of the inner shaft, the third elastic member is fixedly connected to the outer shaft, and one end of the inner shaft away from the third elastic member slides horizontally with the support shaft.

2. The traction pad for spinal cord injury according to claim 1, characterized in that: A massage part located on both sides of the groove is arranged on the side of the shoulder pillow part away from the head pillow part, the massage component is connected to a delivery pump, the massage part includes a massage group arranged on the shoulder pillow part, the massage groups are evenly distributed along the vertical direction of the shoulder pillow part, the end of the airflow direction of the previous massage group is connected with the front end of the airflow direction of the next massage group through a first control valve, the massage group includes a plurality of cavities arranged along the length direction of the shoulder pillow part, an elastic part is horizontally slidably connected in the cavity, a first elastic part is arranged between the elastic part and the cavity, adjacent cavities are connected close to a side of the first elastic part, and the control valve is electrically connected to the controller.

3. The traction pad for spinal cord injury according to claim 2, characterized in that: A slide groove is provided on the supporting shaft, and a roller located in the slide groove is rotatably connected to the inner shaft. The inner shaft is horizontally slidably matched with the supporting shaft through the roller and the slide groove.

4. The traction pad for spinal cord injury according to claim 3, characterized in that: The first side airbag and the second side airbag are both connected to the first reversing valve through the second control valve, the first airbag is connected to the first reversing valve through the second reversing valve, and the controller is electrically connected to the second reversing valve and the second control valve.

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