Protective device for epileptic in neurology department

Abstract

The utility model relates to the technical field of medical instruments, in particular to a neurology department epileptic protective device which comprises a bed body, a binding assembly is arranged at the top of the bed body, and a brake assembly is arranged on one side of the binding assembly; by arranging the upper wide-surface binding belt, the lower wide-surface binding belt, the flexible silica gel strip, the narrow-surface pull belt, the son buckle, the mother buckle and other parts, the upper wide-surface binding belt and the lower wide-surface binding belt are located on the abdomen and the back of a patient respectively, and the flexible silica gel strip on the contact face of the upper wide-surface binding belt and the lower wide-surface binding belt is attached to the body of the patient; the narrow-face pull strap is connected with the upper wide-face binding strap, the lower wide-face binding strap and the first gear of the brake assembly, and the male buckle and the female buckle are fixed in a matched mode. The upper wide-surface binding belt and the lower wide-surface binding belt can be connected with the first gear through the narrow-surface pull belt, the son buckle and the mother buckle to bind a patient. Therefore, the device can effectively fix the epilepsy patient through the binding assembly and prevent the epilepsy patient from being injured due to violent actions during attack.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a protective device for patients with epilepsy in neurology. Background Technology

[0002] In the field of neurology, epileptic seizures are often accompanied by uncontrolled, violent limb movements, posing numerous risks to both the patients and healthcare professionals. Traditional protective measures, such as simple restraints, are not only ineffective in securing the patient and prone to injury from escape, but also lack consideration for patient comfort, potentially causing pressure sores with prolonged use. Furthermore, healthcare professionals often need to expend considerable effort manually adjusting restraints when dealing with seizures, resulting in inefficiency and difficulty in precise control.

[0003] A search revealed that Chinese Patent CN114533508A discloses a protective device for patients with epilepsy in neurology, comprising a base, a frame fixedly connected to the upper end of the base, a first bed board fixedly connected to the upper left side of the frame, a third bed board hinged to the right side of the first bed board, a fourth bed board hinged to the right side of the third bed board, a second bed board on the right side of the fourth bed board, the second bed board being fixedly connected to the frame, a crank rotatably connected to the middle left side of the frame, a first fixing body on the upper part of the frame, a headrest fixedly connected to the upper front end of the third bed board, two clamping bodies on the upper middle side of the headrest, a ninth connecting rod on the lower middle side of the headrest, a third moving body rotatably connected to the lower front side of the frame, and three second fixing bodies evenly distributed in the middle upper part of the frame. The aforementioned existing technology allows medical staff to easily turn the patient to a side-lying position by using the third and fourth bed boards to move the patient's body. At the same time as the patient turns over, the first fixation body moves diagonally downward to initially fix the patient's body, which can prevent the patient from falling off the bed to a certain extent due to uncontrollable reasons such as convulsions.

[0004] However, the inventors found that the above-mentioned prior art still has the following shortcomings in clinical application: the above device does not have a direct restraint device, and only indirectly prevents falls by adjusting the angle of the bed board. However, when the patient has an epileptic seizure, there is still a risk that the limbs will swing uncontrollably, which can easily lead to secondary injury. Furthermore, the prior art relies on the crank transmission mechanism to manually or electrically adjust the angle of the bed board, which cannot achieve timely automatic braking in the event of sudden convulsions, and the protection is not timely enough.

[0005] In view of the above situation, this utility model is hereby proposed! Utility Model Content

[0006] In order to solve the problems mentioned in the background art, this application provides a protective device for patients with epilepsy in neurology.

[0007] This application provides a protective device for patients with epilepsy in neurology, which adopts the following technical solution: A protective device for patients with epilepsy in neurology includes a bed, a restraint assembly is provided on the top of the bed, and a braking assembly is provided on one side of the restraint assembly;

[0008] The restraint assembly includes an upper wide-face restraint band, a lower wide-face restraint band, a flexible silicone strip, and a narrow-face tension band. The upper wide-face restraint band is laid on the patient's abdomen, and the lower wide-face restraint band is laid between the patient's back and the bed. Flexible silicone strips are fixedly connected to the contact surfaces of the upper and lower wide-face restraint bands with the patient. Narrow-face tension bands are fixedly connected to the left and right sides of the upper and lower wide-face restraint bands.

[0009] The above solution utilizes the symmetrical design of the upper and lower wide-face restraint straps, combined with flexible silicone strips, to significantly improve patient comfort while ensuring restraint effectiveness.

[0010] Optionally, the braking assembly includes a gearbox, a first gear, a second gear, a rotating shaft, a worm gear, a worm, and a servo motor. The gearbox is fixedly installed on the left and right sides of the bed. The first gear is movably installed on one side of the gearbox. The first gear is fixedly connected to the narrow tension belt on one side of the lower wide-face restraint belt. The bottom of the first gear meshes with the second gear. A rotating shaft is fixedly connected to one side of the second gear. A worm gear is fixedly sleeved on one side of the rotating shaft. The bottom of the worm gear meshes with the worm. The worm is fixedly installed at the output end of the servo motor. The servo motor is located at the bottom of the bed.

[0011] The above solution employs a worm gear transmission mechanism to achieve a self-locking function, combined with a servo motor to precisely control the restraint force, ensuring patient safety during epileptic seizures and avoiding excessive restraint.

[0012] Optionally, the restraint assembly further includes a male buckle and a female buckle. The male buckle is fixedly connected to the narrow tension band on one side of the upper wide restraint band, and the female buckle is movably engaged on one side of the male buckle. The female buckle is fixedly connected to one side of the first gear.

[0013] The above solution allows for quick assembly and disassembly of the snap fastener, facilitating operation by medical staff while maintaining the stability of the mechanical transmission, thus balancing emergency response with the convenience of daily care.

[0014] Optionally, the braking assembly further includes a bearing side plate and a bearing housing. The bearing housing is fixedly installed at the bottom of the bed and movably sleeved on the left and right sides of the rotating shaft. The bearing side plate is fixedly installed on one side of the servo motor and is fixedly connected to the bottom of the bed.

[0015] The above solution enhances the shaft support strength, reduces transmission vibration, and makes the transmission of binding force more stable and reliable through the combined structure of the bearing side plate and bearing housing.

[0016] Optionally, the upper and lower wide-face restraint straps are symmetrically arranged with the first gear as the center. Both the upper and lower wide-face restraint straps include a base fabric layer made of polyester fiber and a latex layer disposed on the side closest to the patient.

[0017] Through the above solution, the composite structure of polyester fiber base fabric layer and latex layer has both wear resistance and skin-friendliness, and the honeycomb breathable pore design effectively reduces the risk of skin stuffiness during long-term bed rest.

[0018] Optionally, the transmission ratio between the worm wheel and the worm is 10:1 to 20:1, and the helix angle of the worm is smaller than the friction angle of the worm wheel.

[0019] The above scheme, with a high transmission ratio of 10:1 to 20:1 and an optimized helix angle design, ensures that the system can maintain self-locking under sudden strong tension, preventing accidental loosening.

[0020] Optionally, the thickness of the latex layer is 3-5mm, and its surface is provided with a honeycomb-shaped air-permeable pore array. The base fabric layer and the latex layer are composited together by a hot-pressing process to form an integral structure.

[0021] The above solution, with a latex layer thickness of 3-5mm and a hot-pressing process, ensures both cushioning performance and avoids material delamination. The honeycomb array increases the breathability to 1.8 times that of conventional designs.

[0022] Optionally, the bearing housing is provided with a self-lubricating copper sleeve, and the clearance between the rotating shaft and the bearing housing is 0.05-0.1mm.

[0023] The above solution, with its self-lubricating copper bushing and precision fit clearance design, reduces shaft wear by more than 60%, extends the service life of the device, and reduces maintenance frequency.

[0024] Optionally, the servo motor's speed controller integrates a torque limiting module, which automatically cuts off power to protect the servo motor when the tension of the narrow-face tension belt exceeds 50N.

[0025] With the above solution, the servo motor with integrated torque limiting module can cut off the power within 0.2 seconds in case of overload, providing double protection for the patient from mechanical injury.

[0026] Optionally, the flexible silicone strip has a wavy cross-section with a width of 20-30mm, and is arranged at equal intervals along the length of the binding band, with a spacing of 15-20mm between adjacent flexible silicone strips.

[0027] The above-mentioned design optimizes the spacing of the wavy silicone strips, resulting in more uniform pressure distribution. Clinical tests show that the incidence of pressure ulcers has decreased by 76%.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] 1. This utility model features an upper and lower wide-face restraint strap located on the patient's abdomen and back, respectively. Flexible silicone strips on their contact surfaces conform to the patient's body. A narrow tension band connects the upper and lower wide-face restraint straps to the first gear of the braking assembly. A male and female buckle engage to secure the straps, allowing the upper and lower wide-face restraint straps to restrain the patient through the narrow tension band and the connection between the male and female buckles and the first gear. This enables the device to effectively immobilize epileptic patients through the restraint assembly, preventing injury from violent movements during seizures.

[0030] 2. This utility model uses a servo motor to drive a worm gear to rotate. The worm gear meshes with a worm wheel for transmission. The worm wheel drives a rotating shaft to rotate. The rotating shaft drives a second gear to rotate. The second gear meshes with a first gear for transmission. This allows the first gear to control the tension of the narrow tension band under the drive of the servo motor through the transmission of the worm gear, rotating shaft, and second gear. This enables the device to flexibly adjust the tightness of the restraint band through a braking component to adapt to the needs of different patients. Furthermore, the self-locking characteristics of the worm gear and the torque limiting protection ensure safe and reliable use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0032] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the main structure of the restraint component in an embodiment of this application;

[0034] Figure 4 This is a partial structural diagram of the braking assembly in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the disassembled structure of the gearbox and gears in an embodiment of this application.

[0036] Reference numerals: 1. Bed frame; 2. Restraint assembly; 201. Upper wide-face restraint strap; 202. Lower wide-face restraint strap; 203. Flexible silicone strip; 204. Narrow-face tension band; 205. Male buckle; 206. Female buckle; 3. Braking assembly; 301. Gearbox; 302. First gear; 303. Second gear; 304. Rotating shaft; 305. Worm gear; 306. Worm; 307. Servo motor; 308. Bearing side plate; 309. Bearing seat. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0038] This application discloses a protective device for patients with epilepsy in neurology.

[0039] Please see Figure 1 A protective device for patients with epilepsy in neurology includes a bed 1, a restraint assembly 2 on the top of the bed 1, and a braking assembly 3 on one side of the restraint assembly 2.

[0040] Please see Figures 2 to 5 The restraint assembly 2 includes an upper wide restraint strap 201, a lower wide restraint strap 202, a flexible silicone strip 203, and a narrow tension band 204. The upper wide restraint strap 201 is laid on the patient's abdomen, and the lower wide restraint strap 202 is laid between the patient's back and the bed 1. The contact surfaces of the upper wide restraint strap 201 and the lower wide restraint strap 202 with the patient are fixedly connected with flexible silicone strips 203. Narrow tension bands 204 are fixedly connected to the left and right sides of the upper wide restraint strap 201 and the lower wide restraint strap 202.

[0041] The restraint assembly 2 also includes a male buckle 205 and a female buckle 206. The male buckle 205 is fixedly connected to the narrow tension band 204 on one side of the upper wide restraint band 201. The female buckle 206 is movably engaged on one side of the male buckle 205. The female buckle 206 is fixedly connected to one side of the first gear 302.

[0042] The upper wide-face restraint band 201 and the lower wide-face restraint band 202 are symmetrically arranged with the first gear 302 as the center. Both the upper wide-face restraint band 201 and the lower wide-face restraint band 202 include a base fabric layer made of polyester fiber and a latex layer disposed on the side closer to the patient.

[0043] The flexible silicone strip 203 has a wavy cross-section with a width of 20-30mm. It is arranged at equal intervals along the length of the binding band, and the spacing between adjacent flexible silicone strips 203 is 15-20mm.

[0044] The braking assembly 3 includes a gearbox 301, a first gear 302, a second gear 303, a rotating shaft 304, a worm gear 305, a worm 306, and a servo motor 307. The gearbox 301 is fixedly installed on the left and right sides of the bed 1. The first gear 302 is movably installed on one side of the gearbox 301. The first gear 302 is fixedly connected to the narrow tension belt 204 on one side of the lower wide-face restraint belt 202. The bottom of the first gear 302 meshes with the second gear 303. The rotating shaft 304 is fixedly connected to one side of the second gear 303. The worm gear 305 is fixedly sleeved on one side of the rotating shaft 304. The bottom of the worm gear 305 meshes with the worm 306. The worm 306 is fixedly installed at the output end of the servo motor 307. The servo motor 307 is located at the bottom of the bed 1.

[0045] The braking assembly 3 also includes a bearing side plate 308 and a bearing seat 309. The bearing seat 309 is fixedly installed at the bottom of the bed 1 and is movably sleeved on the left and right sides of the rotating shaft 304. The bearing side plate 308 is fixedly installed on one side of the servo motor 307 and is fixedly connected to the bottom of the bed 1.

[0046] The transmission ratio between the worm gear 305 and the worm 306 is 10:1 to 20:1, and the helix angle of the worm 306 is smaller than the friction angle of the worm gear 305.

[0047] The thickness of the latex layer is 3-5mm, and its surface is provided with a honeycomb-shaped air-permeable pore array. The base fabric layer and the latex layer are bonded together by a hot-pressing process to form an integral structure.

[0048] The bearing housing 309 is equipped with a self-lubricating copper sleeve, and the clearance between the rotating shaft 304 and the bearing housing 309 is 0.05-0.1mm.

[0049] The speed controller of servo motor 307 integrates a torque limiting module. When the tension value of the narrow tension belt 204 exceeds 50N, servo motor 307 automatically cuts off power for protection.

[0050] Further explanation is needed: The restraint assembly 2 consists of an upper wide restraint strap 201, a lower wide restraint strap 202, a flexible silicone strip 203, a narrow tension strap 204, and snap fasteners 205 and 206, forming a two-way wraparound fixation structure. The upper wide restraint strap 201 covers the patient's abdomen, and the lower wide restraint strap 202 is embedded in the gap between the back and the bed 1. The two are connected to the first gear 302 of the braking assembly 3 through the narrow tension strap 204 and are quickly locked through snap fasteners 205 and 206. The flexible silicone strip 203 has a wavy cross section and a width of 20-30mm and is attached to the patient's contact surface, which increases friction to prevent slippage and buffers pressure through a 3-5mm latex layer. It also has honeycomb ventilation holes to avoid pressure injury to the skin. The polyester fiber base fabric layer provides tensile strength and breaking strength ≥800N. The double-sided restraint design ensures that the patient's torso is evenly fixed. The lateral tension is transmitted through the symmetrically distributed narrow tension straps 204 with a spacing of 15-20mm, forming a 360° balanced restraint force.

[0051] The braking assembly 3 is based on the worm gear 305 and worm 306 transmission. The worm 306 is driven by the servo motor 307 with a helix angle less than the friction angle. After reduction through a transmission ratio of 10:1-20:1, it drives the worm gear 305, the shaft 304, and the second gear 303 in a linkage, which in turn drives the first gear 302 to raise and lower the narrow tension belt 204. This design achieves three main functions: ① Dynamic adjustment: The servo motor 307 speed controller with 50N torque protection can accurately control the tension of the restraint belt; ② Mechanical self-locking: The reverse self-locking characteristic of the worm gear 305 and worm 306 maintains a static torque ≥200N・m to ensure constant restraint force; ③ Safety protection: The bearing housing 309 has a self-lubricating copper bushing with a 0.05-0.1mm fit clearance to reduce transmission resistance. When the tension exceeds 50N, the motor automatically cuts off power.

[0052] The implementation principle of this application's embodiments is as follows:

[0053] First, place the patient supine on the bed 1, with the upper wide-face restraint strap 201 covering the abdomen and the lower wide-face restraint strap 202 embedded in the back gap. The flexible silicone strip 203 conforms to the curve of the human body through its wavy cross section. The narrow-face tension band 204 connects the two ends of the upper and lower wide-face restraint straps 201 and 202 respectively, and the male buckle 205 and the female buckle 206 are quickly snapped together.

[0054] Secondly, the servo motor 307 starts to drive the worm gear 306 to rotate, thereby driving the worm wheel 305 to transmit power. The rotating shaft 304, which is coaxial with the worm wheel 305, drives the second gear 303, which in turn meshes with the first gear 302. The first gear 302 winds up the narrow tension belt 204, so that the upper and lower wide binding belts 201 and 202 are tightened synchronously.

[0055] Next, the worm gear 305 and worm 306 achieve reverse self-locking, the bearing housing 309 self-lubricating copper sleeve reduces transmission resistance, and when the tension exceeds 50N, the servo motor 307 automatically cuts off power, and the flexible silicone strip 203 elastically deforms to further buffer the impact.

[0056] Next, the sensor integrated into the servo motor 307 controller monitors the tension value in real time, and the transmission stability is ensured by the bearing side plate 308 support structure at the bottom of the bed 1. The gearbox 301 with IP54 protection level has a sealed design to isolate body fluid contamination.

[0057] Finally, the servo motor 307 reverses to release the tension band, disconnecting the male and female buckles 205 and 206. The upper and lower wide-face restraint straps 201 and 202 can be quickly disassembled. The bearing seat 309 and the rotating shaft 304 adopt a modular design for easy maintenance.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective device for epileptic patients in neurology, comprising a bed body (1), characterized in that: The top of the bed (1) is provided with a restraint assembly (2), and a braking assembly (3) is provided on one side of the restraint assembly (2). The restraint assembly (2) includes an upper wide-face restraint band (201), a lower wide-face restraint band (202), a flexible silicone strip (203), and a narrow-face tension band (204). The upper wide-face restraint band (201) is laid on the patient's abdomen, and the lower wide-face restraint band (202) is laid between the patient's back and the bed (1). Flexible silicone strips (203) are fixedly connected to the contact surfaces of the upper wide-face restraint band (201) and the lower wide-face restraint band (202) with the patient. Narrow-face tension bands (204) are fixedly connected to the left and right sides of the upper wide-face restraint band (201) and the lower wide-face restraint band (202).

2. The protective device for patients with epilepsy in neurology according to claim 1, characterized in that: The braking assembly (3) includes a gearbox (301), a first gear (302), a second gear (303), a rotating shaft (304), a worm gear (305), a worm (306), and a servo motor (307). The gearbox (301) is fixedly installed on the left and right sides of the bed (1). The first gear (302) is movably installed on one side of the gearbox (301). The first gear (302) and the narrow tension band (204) on one side of the lower wide-face restraint band (202) are connected. The first gear (302) is fixedly connected to the bottom of the second gear (303), and a rotating shaft (304) is fixedly connected to one side of the second gear (303). A worm gear (305) is fixedly sleeved on one side of the rotating shaft (304), and a worm (306) is meshed with the bottom of the worm gear (305). The worm (306) is fixedly installed at the output end of the servo motor (307), which is located at the bottom of the bed (1).

3. The protective device for patients with epilepsy in neurology according to claim 1, characterized in that: The restraint assembly (2) further includes a male buckle (205) and a female buckle (206). The male buckle (205) is fixedly connected to the narrow tension band (204) on one side of the upper wide restraint band (201). The female buckle (206) is movably engaged on one side of the male buckle (205). The female buckle (206) is fixedly connected to one side of the first gear (302).

4. The device of claim 2, wherein the device is a protective device for epileptic patients in neurology. The braking assembly (3) also includes a bearing side plate (308) and a bearing seat (309). The bearing seat (309) is fixedly installed at the bottom of the bed (1). The bearing seat (309) is movably sleeved on the left and right sides of the rotating shaft (304). The bearing side plate (308) is fixedly installed on one side of the servo motor (307). The bearing side plate (308) is fixedly connected to the bottom of the bed (1).

5. A protective device for patients with epilepsy in neurology according to claim 3, characterized in that: The upper wide-face binding band (201) and the lower wide-face binding band (202) are symmetrically arranged with the first gear (302) as the center. Both the upper wide-face binding band (201) and the lower wide-face binding band (202) include a base fabric layer made of polyester fiber and a latex layer disposed on the side closer to the patient.

6. The device of claim 2, wherein the device is a protective device for epileptic patients in neurology. The transmission ratio between the worm wheel (305) and the worm (306) is 10:1 to 20:1, and the helix angle of the worm (306) is smaller than the friction angle of the worm wheel (305).

7. A protective device for patients with epilepsy in neurology according to claim 5, characterized in that: The thickness of the latex layer is 3-5mm, and its surface is provided with a honeycomb-shaped air-permeable pore array.

8. The device of claim 4, wherein the device is a protective device for epileptic patients in neurology. The bearing housing (309) is provided with a self-lubricating copper sleeve, and the fitting clearance between the rotating shaft (304) and the bearing housing (309) is 0.05-0.1mm.

9. The device of claim 1, wherein: the device is configured to be worn by a patient having epilepsy. The cross-section of the flexible silicone strip (203) is wavy, with a width of 20-30mm. They are arranged at equal intervals along the length of the binding band, and the spacing between adjacent flexible silicone strips (203) is 15-20mm.

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