Neurological patient swallowing disorder rehabilitation training device

Abstract

The present application belongs to the technical field of medical devices, and particularly relates to a dysphagia rehabilitation training device for a neurology patient, which comprises a water storage tank, a training mechanism, a water delivery mechanism and an auxiliary mechanism. The training mechanism comprises a stimulating part installed on the water storage tank, and the stimulating part is provided with a linkage part and a plurality of massage parts. The water delivery mechanism comprises a water delivery part provided on the water storage tank and an adjusting part provided on the water delivery part. The water delivery part is used for pumping hot water or cold water to the training mechanism, and the adjusting part is used for controlling the water delivery part to deliver hot water or cold water. The auxiliary mechanism is provided on the water delivery part and is used for pumping out the residual water in the pipeline of the water delivery part before switching the delivery of hot water or cold water. The present application can realize temperature sensing and mechanical cooperative stimulation through fluid kinetic energy, and can ensure cold-heat alternation purity by using a single system low-cost architecture and a residual liquid recovery mechanism, so as to improve the rehabilitation effect.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a rehabilitation training device for dysphagia in neurological patients. Background Technology

[0002] Neurological diseases such as stroke and Parkinson's disease often lead to swallowing dysfunction. Existing rehabilitation training devices are mainly divided into two categories: one is the chin resistance trainer, which provides resistance to the chin through springs or elastic elements to strengthen muscles such as the geniohyoid muscle; the other is the intraoral stimulation device, which enhances pharyngeal sensory input through balloons, temperature stimulation, or electrical stimulation.

[0003] For example, Chinese patent application number CN202511442907.8 describes a rehabilitation training device for swallowing disorders. This invention utilizes a training mechanism that employs an electric push rod and a piston to inflate air bladders via a trachea. Multiple air bladders work together, expanding and contracting sequentially to create a peristaltic effect, thus stimulating the patient's tongue to move and swallow. A water tank and stimulation ball are included, with a temperature sensor monitoring the water temperature. The inlet and outlet pipes circulate ice water inside the stimulation ball, maintaining a constant temperature. However, this device only provides cold stimulation and cannot adjust the stimulation mode according to different rehabilitation stages and individual differences, such as alternating hot and cold stimulation, which limits the effectiveness of the rehabilitation training.

[0004] For example, the swallowing dysphagia assistive therapy device with Chinese patent application number CN201922349705.5 uses a first bidirectional pump and a second bidirectional pump to pump cold water and hot water into and out of the balloon respectively. The alternating hot and cold stimulation of the pharynx expands the cricopharyngeal muscle and can relieve swallowing difficulties. However, it uses two completely independent circulation systems, one for cold stimulation and the other for hot stimulation. This dual-system architecture results in high manufacturing costs and hinders widespread use. Summary of the Invention

[0005] The purpose of this invention is to provide a rehabilitation training device for dysphagia in neurological patients, which can achieve temperature-sensing and mechanical synergistic stimulation through fluid kinetic energy, and utilize a low-cost single-system architecture and residual liquid recovery mechanism to ensure the purity of alternating hot and cold temperatures to improve rehabilitation effects.

[0006] The specific technical solution adopted by this invention is as follows: A rehabilitation training device for patients with swallowing disorders in neurology includes a water tank; A training device includes a stimulation unit installed on a water tank, the stimulation unit being provided with a linkage unit and multiple massage units; wherein the stimulation unit is configured to stimulate the patient by receiving hot or cold fluid, and the fluid flowing through the stimulation unit can drive the linkage unit to operate, the linkage unit being able to press multiple massage units sequentially when operating. A water supply mechanism, comprising a water supply section disposed on a water storage tank and an adjustment section disposed on the water supply section, wherein the water supply section is used to pump hot or cold water into the training mechanism, and the adjustment section is used to control the water supply section to deliver hot or cold water. An auxiliary mechanism, which is installed on the water supply section, is used to extract residual water in the water supply section pipeline before switching between hot and cold water supply.

[0007] In a preferred embodiment, a partition plate is fixedly connected inside the water storage tank, dividing the water storage tank into a hot water chamber and a cold water chamber.

[0008] In a preferred embodiment, the stimulation part includes a hollow tube mounted on a support of a water storage tank. A stimulation head is fixedly connected to the end of the hollow tube. A water storage cavity is formed on the stimulation head. A water delivery groove is formed in the middle of the stimulation head and communicates with the water storage cavity. Water outlet grooves are formed on both the front and rear sides of the hollow tube, and one end of the water outlet groove is communicated with the water storage cavity. One end of each of the two water outlet grooves is fixedly connected to a water storage box, and a water outlet pipe is connected to the water storage box.

[0009] In a preferred embodiment, the linkage includes a support frame, which is fixedly connected inside a hollow tube. A rotating rod is rotatably connected to the support frame via a bearing. An impeller is fixedly installed at one end of the rotating rod, and first cams are fixedly installed in an array at the other end of the rotating rod.

[0010] In a preferred embodiment, the massage part includes a movable groove, and a plurality of movable grooves are arranged in an array at the lower end of a hollow tube. A lifting block is slidably connected in the movable groove. A first lifting rod is piston-type inserted into the upper end of the movable groove, and one end of the first lifting rod is fixedly connected to the lifting block. A second lifting rod is piston-type inserted into the lower end of the movable groove, and one end of the second lifting rod is fixedly connected to the lifting block. A pressing block is fixedly connected to the lower end of the second lifting rod. A spring is fixedly connected between the lifting block and the inner wall of the movable groove.

[0011] In a preferred embodiment, the water supply unit includes a three-way pipe, which is fixedly connected to the water storage tank. Its two ends are respectively connected to the hot water chamber and the cold water chamber. A water pump is fixedly installed at the upper end of the three-way pipe, and the drain end of the water pump is fixedly connected to a water supply pipe. Both chambers of the water storage tank are connected to drain pipes, and the upper ends of the two drain pipes are connected together and connected to a return pipe.

[0012] In a preferred embodiment, a first check valve and a second check valve are installed at both ends of the two drain pipes, and valves are also installed on the drain pipes, with a small gear installed on the rotating shaft of the valve.

[0013] In a preferred embodiment, the adjusting part includes a drive rod, which is rotatably connected to a three-way pipe via a sealed bearing. A motor is fixedly mounted on the three-way pipe, and the output shaft of the motor is fixedly connected to the central rotating shaft of the drive rod. One end of the drive rod located inside the three-way pipe is rotatably connected to a guide seat via a bearing. A ring is fixedly sleeved on the drive rod, and torsion springs are fixedly connected to both sides of the ring. The other end of the torsion springs is fixedly connected to the inner wall of the guide seat. A large gear and a second cam are also fixedly mounted on the drive rod.

[0014] In a preferred embodiment, two limiting blocks are fixedly installed inside the tee pipe.

[0015] In a preferred embodiment, the auxiliary mechanism includes a drainage pipe fixedly connected to a drain pipe, and a hollow cylinder fixedly connected to the other end of the drainage pipe. A piston rod is piston-type inserted into one end of the hollow cylinder, and a piston plate is fixedly connected to one end of the piston rod. A compression spring is fixedly connected between the piston plate and the hollow cylinder. A guide seat is fixedly connected to the top surface of the water storage tank, and a sliding rod is slidably connected to the guide seat, with the sliding rod fixedly connected to the piston rod.

[0016] The technical effects achieved by this invention are as follows: This invention integrates the hot water chamber and cold water chamber into one unit through a single water tank structure with a built-in partition, sharing a single water pump and piping system. By rotating the guide seat in the adjustment section, users can flexibly select between drawing cold or hot water, achieving rapid switching between hot and cold modes. This "single pump, dual source" design reduces the number of components and maintenance difficulty, significantly lowering manufacturing costs and facilitating the widespread adoption and promotion of this rehabilitation device in primary healthcare institutions. This invention utilizes the kinetic energy generated by fluid flow within a pipeline to drive an impeller to rotate, which in turn, via a cam mechanism, drives the massage unit to produce a wave-like pressing motion from front to back. This design eliminates the need for a separate motor-driven massage component; the circulation of a single water source simultaneously provides temperature stimulation (cold / hot) to the base of the tongue and sequential mechanical massage to the tongue body. This wave-like pressing simulates the "peristaltic wave" of the tongue muscles pushing the food bolus during normal swallowing, creating a synergistic effect with temperature stimulation: cold stimulation increases nerve sensitivity, while hot stimulation relaxes muscles. Combined with mechanical peristalsis training, this effectively promotes the reconstruction of the swallowing reflex, solving the problems of separation and lack of linkage between temperature stimulation and mechanical movement in existing technologies, and significantly improving the effectiveness of rehabilitation training. This invention utilizes the rotation of a drive rod during mode switching to generate negative pressure via a cam-linked piston assembly. Before switching between hot and cold sources, residual water at different temperatures within the tubing is automatically extracted and temporarily stored in a hollow cylinder. Upon reversal, the stored fluid is precisely reinjected into its original chamber. This mechanism completely avoids the temperature neutralization phenomenon caused by direct mixing of hot and cold water in the tubing, ensuring the purity of temperature and response speed at the start of each stimulation. Simultaneously, the recycling of residual fluid avoids water waste, guarantees continuous and efficient treatment, and meets the individualized temperature stimulation needs of patients at different stages of rehabilitation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side sectional view of the training mechanism of the present invention; Figure 3 This is the present invention. Figure 2 An enlarged schematic diagram of part A shown in the image; Figure 4 This is a top sectional view of the training mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the water storage tank of the present invention; Figure 6 This is a schematic diagram of the water conveying mechanism and auxiliary mechanism of the present invention; Figure 7 This is the present invention. Figure 6 Rear view; Figure 8 This is a schematic diagram of the internal structure of the tee pipe of the present invention; Figure 9 This is a schematic diagram showing the connection between the flow guide seat and the drive rod of the present invention; Figure 10 This is a schematic diagram of the internal structure of the hollow cylinder of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Water tank; 2. Training mechanism; 21. Stimulation part; 22. Linkage part; 23. Massage part; 3. Water delivery mechanism; 31. Water delivery part; 32. Adjustment part; 4. Auxiliary mechanism; 5. Limiting block; 11. Divider plate; 211. Hollow tube; 212. Stimulation head; 213. Water storage chamber; 214. Water delivery tank; 215. Water outlet tank; 216. Water storage box; 217. Water outlet pipe; 221. Support frame; 222. Rotating rod; 223. Impeller; 224. First cam; 231. Movable groove; 232. Lifting block; 233. First lifting rod; 234. Second lifting rod; 235. Pressing block; 236. Spring; 311. Tee pipe; 312. Water pump; 313. Water supply pipe; 314. Drain pipe; 315. Return pipe; 316. First check valve; 317. Second check valve; 318. Valve; 319. Pinion gear; 321. Drive rod; 322. Motor; 323. Guide seat; 324. Ring; 325. Torsion spring; 326. Large gear; 327. Second cam; 41. Drainage tube; 42. Hollow cylinder; 43. Piston rod; 44. Piston plate; 45. Compression spring; 46. Guide seat; 47. Slide rod. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Please see the appendix Figure 1 and Figure 2 As shown, this embodiment provides a rehabilitation training device for dysphagia in neurological patients, including a water tank 1; Training mechanism 2 includes a stimulation part 21 installed on a water tank 1. The stimulation part 21 is provided with a linkage part 22 and multiple massage parts 23. The stimulation part 21 is configured to stimulate the patient by receiving hot or cold fluid, and the fluid flowing through the stimulation part 21 can drive the linkage part 22 to operate. When the linkage part 22 is operating, it can press multiple massage parts 23 in sequence. Water supply mechanism 3 includes a water supply section 31 disposed on the water storage tank 1 and an adjustment section 32 disposed on the water supply section 31. The water supply section 31 is used to pump hot water or cold water into the training mechanism 2, and the adjustment section 32 is used to control the water supply section 31 to deliver hot water or cold water. Auxiliary mechanism 4 is provided on the water supply section 31 and is used to extract residual water in the pipeline of the water supply section 31 before switching between hot water and cold water supply.

[0024] In this embodiment, the water storage tank 1 is used to store hot or cold water, and its capacity can be designed according to actual needs, without limitation. The stimulation part 21 of the training mechanism 2 is made of a material with good thermal conductivity, which can effectively conduct the temperature of the hot or cold fluid while ensuring a certain strength and durability. The linkage part 22 is connected to the stimulation part 21 and multiple massage parts 23 through a mechanical structure, ensuring that the massage parts 23 can be pressed in an orderly manner under fluid drive. The water supply mechanism 3 is equipped with a pump body, which can supply hot or cold water to the training mechanism 2. The auxiliary mechanism 4 can extract the residual water in the pipeline of the water supply part 31 by means of extraction, so as to avoid the mixing of hot and cold water and affect the training effect.

[0025] Secondly, please refer to it again. Figure 5 A partition plate 11 is fixedly connected inside the water storage tank 1, which divides the water storage tank 1 into a hot water chamber and a cold water chamber.

[0026] In this embodiment, water is first injected into the water storage tank 1 through the water inlet (not shown in the figure). Since a partition plate 11 is fixedly installed inside the water storage tank 1, the interior of the water storage tank 1 is divided into two independent chambers: a hot water chamber and a cold water chamber. The operator can inject water of different temperatures into the two chambers according to treatment needs (for example, injecting cold water into the cold water chamber and warm or hot water into the hot water chamber).

[0027] It should be noted that a heating module is installed in the hot water chamber and a cooling module is installed in the cold water chamber. Both chambers are coated with a heat insulation layer to effectively prevent heat exchange between the chambers and provide the patient with a stable water temperature to meet the needs of different rehabilitation training stages (not shown in the figure). In addition, both the heating and cooling modules are products that are currently available on the market. When selecting models, it is advisable to choose those that meet the requirements of this application, provided that the specifications and usage scenarios are suitable. Specific model specifications are not limited here.

[0028] Secondly, please refer to the following as well. Figures 2 to 4The stimulation part 21 includes a hollow tube 211, which is mounted on a bracket of the water storage tank 1. A stimulation head 212 is fixedly connected to the end of the hollow tube 211. A water storage cavity 213 is opened on the stimulation head 212. A water delivery groove 214 is opened in the middle of the stimulation head 212 and is connected to the water storage cavity 213. Water outlet grooves 215 are opened on both the front and rear sides of the hollow tube 211, and one end of the water outlet groove 215 is connected to the water storage cavity 213. One end of the two water outlet grooves 215 is fixedly connected to a water storage box 216, and a water outlet pipe 217 is connected to the water storage box 216.

[0029] In this embodiment, the water supply unit 31 of the water supply mechanism 3 pumps hot or cold water from the water storage tank 1 into the hollow tube 211 of the training mechanism 2. The water entering the hollow tube 211 flows forward along its internal channels and enters the water storage chamber 213 through the water supply groove 214 on the stimulation head 212. The water filling the water storage chamber 213 heats or cools the stimulation head 212 through heat exchange. Since the patient holds the hollow tube 211 in their mouth and the multiple massage parts 23 are positioned above the tongue, the temperature-changed stimulation head 212 comes into contact with the base of the patient's tongue, providing temperature stimulation to the base of the tongue through heat conduction—cold water stimulation is used to increase sensory sensitivity and reflex triggering, while hot water stimulation helps relax local muscles and promote blood flow.

[0030] After heat exchange, the water continues to flow, exiting from the water storage chamber 213 through the connected water outlet 215, entering the water storage box 216 for temporary storage, and finally being discharged along the water outlet pipe 217 connected to the water storage box 216 and flowing back to the water storage tank 1. The water source maintains continuous flow throughout the entire circulation process, ensuring that the stimulation head 212 can maintain a stable stimulation temperature.

[0031] Simultaneously, the flowing water impacts the linkage 22 within the hollow tube 211, driving the entire linkage 22 to operate and sequentially press multiple massage sections 23, achieving a wave-like massage of the tongue. Thus, this device, through the flow of a single water source, simultaneously achieves temperature stimulation of the tongue root and mechanical massage of the tongue body; the two work synergistically to promote the rehabilitation training of swallowing function.

[0032] Secondly, please refer to it again. Figure 2 and Figure 3 The linkage 22 includes a support frame 221, which is fixedly connected inside the hollow tube 211. A rotating rod 222 is rotatably connected to the support frame 221 via a bearing. An impeller 223 is fixedly installed at one end of the rotating rod 222, and first cams 224 are fixedly installed in an array at the other end of the rotating rod 222.

[0033] Please refer to it again. Figure 2 and Figure 3The massage unit 23 includes a movable groove 231. Multiple movable grooves 231 are arranged in an array at the lower end of the hollow tube 211. A lifting block 232 is slidably connected inside the movable groove 231. A first lifting rod 233 is piston-type inserted into the upper end of the movable groove 231, and one end of the first lifting rod 233 is fixedly connected to the lifting block 232. A second lifting rod 234 is piston-type inserted into the lower end of the movable groove 231, and one end of the second lifting rod 234 is fixedly connected to the lifting block 232. A pressing block 235 is fixedly connected to the lower end of the second lifting rod 234. A spring 236 is fixedly connected between the lifting block 232 and the inner wall of the movable groove 231.

[0034] In this embodiment, when hot or cold water is pumped into the hollow pipe 211 and flows through its interior, the flowing water impacts and drives the impeller 223 installed in the linkage 22 to rotate. The rotational motion of the impeller 223 is transmitted through a rotating rod 222 fixed coaxially thereto. On the rotating rod 222, a plurality of first cams 224 are arranged in an array along the axial direction, and the mounting angles of these first cams 224 are staggered in the circumferential direction. As the rotating rod 222 rotates, these arrayed first cams 224 at different angles sequentially contact the upper end of their respective first lifting rods 233. Specifically: When one of the first cams 224 rotates to the point where its protrusion faces downward, the protrusion presses down on the corresponding first lifting rod 233. After the first lifting rod 233 is pressed, it causes the lifting block 232, which is fixedly connected to it, to slide downward within the movable groove 231 against the elastic force of the spring 236. The downward movement of the lifting block 232 simultaneously causes the second lifting rod 234, which is fixedly connected to it, and the pressing block 235 fixed to the lower end of the second lifting rod 234, to move downward, thereby applying pressure to the lower tongue.

[0035] As the first cam 224 continues to rotate with the rotating rod 222, its protruding part disengages from the first lifting rod 233. Under the action of the spring 236, the lifting block 232, the first lifting rod 233, the second lifting rod 234, and the pressing block 235 move upward as a whole, returning to the initial position and completing one pressing cycle.

[0036] Because multiple first cams 224 are arrayed and staggered along the circumference and axial direction of the rotating rod 222, they sequentially drive the massage parts 23 at different positions in a preset order. Specifically, these massage parts 23 start from the massage point near the front of the mouth and gradually advance towards the massage point at the rear. Therefore, the pressing motion wave generated by the pressing block 235 on the tongue surface starts from the tip of the tongue, passes through the middle of the tongue, and finally reaches the root of the tongue, forming a sequential mechanical stimulation wave from front to back. This wave-like pressing pattern simulates the "peristaltic wave" movement of the tongue muscles contracting from front to back and pushing the food bolus during normal swallowing, thereby achieving biomimetic training of swallowing movements and effectively improving training results.

[0037] Please refer to it again. Figures 5 to 8 The water supply section 31 includes a three-way pipe 311, which is fixedly connected to the water storage tank 1. Its two ends are respectively connected to the hot water chamber and the cold water chamber. A water pump 312 is fixedly installed at the upper end of the three-way pipe 311. The drain end of the water pump 312 is fixedly connected to the water supply pipe 313. Both chambers of the water storage tank 1 are connected to drain pipes 314, and the upper ends of the two drain pipes 314 are connected together and connected to a return pipe 315. A first one-way valve 316 and a second one-way valve 317 are installed at both ends of the two drain pipes 314. A valve 318 is also installed on the drain pipe 314, and a small gear 319 is installed on the rotating shaft of the valve 318.

[0038] In this embodiment, before use, the hollow tube 211 of the training mechanism 2 is installed on the bracket on the water storage tank 1. The water supply pipe 313 of the water supply mechanism 3 is connected to the water inlet of the hollow tube 211 of the training mechanism 2. The water outlet pipe 217 of the training mechanism 2 is connected to the return pipe 315 of the water supply mechanism 3. Thus, a complete water circulation loop is formed, starting from the water storage tank 1, passing through the water supply mechanism 3 and the training mechanism 2, and finally returning to the water storage tank 1.

[0039] Please refer to it again. Figures 6 to 9 The adjustment unit 32 includes a drive rod 321, which is rotatably connected to a three-way pipe 311 via a sealed bearing. A motor 322 is fixedly installed on the three-way pipe 311, and the output shaft of the motor 322 is fixedly connected to the central rotating shaft of the drive rod 321. One end of the drive rod 321 located inside the three-way pipe 311 is rotatably connected to a guide seat 323 via a bearing. A ring 324 is fixedly sleeved on the drive rod 321, and torsion springs 325 are fixedly connected to both sides of the ring 324. The other end of the torsion springs 325 is fixedly connected to the inner wall of the guide seat 323. A large gear 326 and a second cam 327 are also fixedly installed on the drive rod 321.

[0040] In this embodiment, the water pump 312 is started. The water pump 312 generates suction force from the common port of the three-way pipe 311. At this time, the guide seat 323 of the adjusting part 32 is in a specific position, so that the port of the three-way pipe 311 communicating with the cold water chamber of the water storage tank 1 is open, while the port communicating with the hot water chamber is closed (e.g., Figure 8 (As shown). Therefore, cold water is drawn from the cold water chamber, flows through the three-way pipe 311, and is then pumped to the training mechanism 2 via the water supply pipe 313.

[0041] The cold water that has undergone cold stimulation in training unit 2 becomes "return water" and enters return pipe 315 via outlet pipe 217. On the return path, valve 318 on drain pipe 314 controls the flow direction. Figure 6 As shown, in cold water mode, valve 318 on the left-side drain pipe 314 (corresponding to the cold water chamber circuit) is open, while valve 318 on the right-side (corresponding to the hot water chamber circuit) is closed. Therefore, after flowing through the return pipe 315, the return water flows into the open drain pipe 314 on the left, and smoothly returns to the cold water chamber through the first one-way valve 316 at the end of the pipe (designed to allow fluid to flow back to the water tank but prevent backflow), achieving a closed-loop circulation and recycling of the therapeutic cold water, ensuring efficient resource utilization and a clean treatment environment. The second one-way valve 317 is designed to allow fluid to flow into the drain pipe 314 but prevents diversion.

[0042] After a preset period of cold stimulation, the system needs to switch to hot stimulation mode. At this point, perform the following switching steps: First, turn off water pump 312 to stop supplying water to training facility 2, in preparation for switching water source modes.

[0043] Restart the motor 322 of the adjustment unit 32. The motor 322 drives the drive rod 321, which is fixedly connected to its output shaft, to rotate. The drive rod 321 is rotatably connected to the three-way pipe 311 through a sealed bearing, and its rotation can drive the guide seat 323 located inside the three-way pipe 311 to rotate together.

[0044] Driven by the drive rod 321, the flow guide seat 323 rotates from its original position of blocking the hot water chamber inlet to its position of blocking the cold water chamber inlet. After the switch is completed, the inlet end of the tee pipe 311 connected to the cold water chamber is blocked, while the inlet end connected to the hot water chamber is opened. At this time, the flow direction of the tee pipe 311 has been switched from cold water mode to hot water mode.

[0045] As the drive rod 321 rotates, the large gear 326 fixedly mounted on the drive rod 321 rotates synchronously. This large gear 326 meshes with the small gears 319 mounted on the two drain pipes 314. With the rotation of the large gear 326, the two meshing small gears 319 are driven to rotate, thereby rotating the shafts of the two valves 318, achieving synchronized valve switching. Specifically, during the switch to hot water mode: the valve 318 on the left drain pipe 314, which was originally open, is closed; the valve 318 on the right drain pipe 314, which was originally closed, is opened. This valve switching action is completed synchronously with the water circuit switching of the three-way pipe 311, preparing for the subsequent return of hot water.

[0046] After the above switching is completed, the water pump 312 is restarted. At this time, the water pump 312 draws hot water from the hot water chamber of the water storage tank 1 through the three-way pipe 311. The hot water is discharged into the hollow pipe 211 through the water supply pipe 313, flows along the stimulation part 21 and through the stimulation head 212, and applies thermal stimulation to the patient. After stimulation, the hot water flows into the drain pipe 314 through the outlet pipe 217 and the return pipe 315. Since the valve 318 on the right drain pipe 314 is open at this time, while the valve 318 on the left drain pipe 314 is closed, the hot water flows along the right drain pipe 314 and is finally discharged into the hot water chamber of the water storage tank 1, realizing the recycling of hot water.

[0047] Please refer to it again. Figure 7 and Figure 10 The auxiliary mechanism 4 includes a drainage pipe 41, which is fixedly connected to the drain pipe 314. The other end of the drainage pipe 41 is fixedly connected to a hollow cylinder 42. A piston rod 43 is piston-type inserted into one end of the hollow cylinder 42. A piston plate 44 is fixedly connected to one end of the piston rod 43. A compression spring 45 is fixedly connected between the piston plate 44 and the hollow cylinder 42. A guide seat 46 is fixedly connected to the top surface of the water storage tank 1. A sliding rod 47 is slidably connected to the guide seat 46, and the sliding rod 47 is fixedly connected to the piston rod 43.

[0048] In this embodiment, when the system switches from cold water mode to hot water mode, the drive rod 321 rotates under the drive of the motor 322. The rotation of the drive rod 321 drives the guide seat 323 to switch the water path of the three-way pipe 311, and drives the valve 318 to switch the return path through the large gear 326.

[0049] Simultaneously, the second cam 327, fixedly mounted on the drive rod 321, rotates synchronously. During the switch to hot water mode, the drive rod 321 causes the second cam 327 to rotate approximately 180 degrees in reverse (e.g., ...). Figure 6(As shown). As the second cam 327 rotates, its cam profile gradually compresses the corresponding left slide rod 47. After being compressed by the second cam 327, the left slide rod 47 moves to the left under the guidance of the guide seat 46. The movement of the slide rod 47 drives the piston rod 43 and piston plate 44, which are fixedly connected to it, to move to the left together. When the piston plate 44 moves to the left inside the hollow cylinder 42, it compresses the compression spring 45 located between the piston plate 44 and the inner wall of the hollow cylinder 42, causing it to store elastic potential energy. At the same time, the volume of the hollow cylinder 42 on the left side of the piston plate 44 increases, forming a negative pressure state. Since the hollow cylinder 42 is connected to the drain pipe 314 through the drainage pipe 41, and the drain pipe 314 is connected to the pipeline system of the return pipe 315 and the stimulation part 21, the negative pressure state acts on the pipeline system through the drainage pipe 41, drawing the cold water remaining in the return pipe 315, hollow pipe 211, stimulation head 212 and other components into the left hollow cylinder 42 for temporary storage.

[0050] While the left auxiliary mechanism 4 is performing the extraction action, the right auxiliary mechanism 4 is in the reset state. It should be noted that during the previous switch from hot water mode to cold water mode (i.e., the last switch), the right auxiliary mechanism 4 performed an extraction action, extracting the remaining hot water in the pipes and storing it in the right hollow cylinder 42, while its compression spring 45 was compressed. When the drive rod 321 rotates and the second cam 327 presses the left slide rod 47, the compression on the right slide rod 47 is gradually released. At this time, the previously compressed spring 45 in the right hollow cylinder 42 releases its elastic potential energy, pushing the right piston plate 44, piston rod 43, and slide rod 47 to reset to the right. The resetting movement of the piston plate 44 compresses the volume inside the right hollow cylinder 42, pushing the previously stored hot water out through the right drain pipe 41 and the right drain pipe 314, ultimately draining it into the hot water chamber of the water storage tank 1, thus achieving hot water recycling.

[0051] Conversely, when the system switches from hot water mode to cold water mode, the drive rod 321 rotates forward, and the second cam 327 rotates accordingly. At this time, the second cam 327 presses the right slide rod 47, driving the right piston plate 44 to move and compressing the right compression spring 45. The hot water remaining in the pipeline is then drawn out through the right drain pipe 41 and stored in the right hollow cylinder 42. At the same time, the pressure on the left slide rod 47 is gradually released, and the left compression spring 45 releases its elastic potential energy, pushing the left piston plate 44 to reset. The cold water previously (i.e., during the last switch) stored in the left hollow cylinder 42 is then pushed out through the left drain pipe 41 and the left drain pipe 314 and discharged into the cold water chamber of the water storage tank 1.

[0052] In this way, residual water in the original pipeline can be drained as much as possible before switching water sources, preventing direct mixing of hot and cold water in the pipeline, ensuring the purity of temperature stimulation, and allowing the stimulation head 212 to switch between hot and cold water more quickly, improving the continuity and efficiency of treatment. Furthermore, the extracted residual liquid is not discarded, but temporarily stored in the cylinder of the auxiliary mechanism 4. In the next reverse switching cycle, it will be safely "returned" to its source water tank 1 chamber (cold water returns to the cold water chamber, hot water returns to the hot water chamber).

[0053] Please refer to it again. Figure 8 Two limit blocks 5 are fixedly installed inside the tee pipe 311.

[0054] In this embodiment, under normal circumstances, when the drive rod 321 rotates, it drives the guide seat 323 to rotate together through the ring 324 and the torsion spring 325; however, when the rotation of the guide seat 323 is unable to continue due to external resistance, the drive rod 321 can overcome the elastic force of the torsion spring 325 and continue to rotate. At this time, the torsion spring 325 undergoes elastic torsion and stores torsional potential energy.

[0055] Two limiting blocks 5 are fixedly installed inside the tee pipe 311. These two limiting blocks 5 are located at the inlet end of the tee pipe 311 that connects to the cold water chamber and the inlet end that connects to the hot water chamber, respectively. The function of the limiting blocks 5 is to limit the rotation angle of the guide seat 323, ensuring that the guide seat 323 can block the corresponding inlet end without excessive rotation.

[0056] When switching between hot and cold water modes, the drive rod 321 needs to rotate the second cam 327 approximately 180 degrees to drive the auxiliary mechanism 4 to complete the extraction of residual water in the pipeline and the opening and closing of the valve 318. However, the required rotation angle for the guide seat 323 to rotate from blocking one inlet end to blocking the other inlet end is relatively small. This angle difference is resolved through the aforementioned elastic transmission structure. Specifically: When the system switches from cold water mode to hot water mode, motor 322 drives drive rod 321 in a predetermined direction (e.g., counterclockwise). Figure 8 (As shown) Rotation. When the drive rod 321 starts to rotate, it drives the guide seat 323 to rotate together through the ring 324 and the torsion spring 325. At this time, the guide seat 323 gradually rotates from the position blocking the inlet of the hot water chamber towards the inlet of the cold water chamber. When the guide seat 323 rotates to the left limiting block 5, the guide seat 323 contacts the limiting block 5. Under the blocking action of the limiting block 5, the guide seat 323 cannot continue to rotate, and at this time the guide seat 323 just blocks the inlet end of the cold water chamber.

[0057] After the guide seat 323 stops rotating, the drive rod 321 continues to rotate under the drive of the motor 322. Since the drive rod 321 and the guide seat 323 are connected by a torsion spring 325, the continued rotation of the drive rod 321 begins to torsion the torsion spring 325, causing the torsion spring 325 to undergo elastic deformation and store torsional potential energy. During this stage, the drive rod 321 drives the second cam 327 on it to continue rotating until it reaches the preset rotation angle, thereby driving the auxiliary mechanism 4 to complete the extraction of residual cold water from the pipeline.

[0058] When a reverse switch is required (i.e., switching from hot water mode back to cold water mode), the motor 322 drives the drive rod 321 to rotate, and the guide seat 323 follows the drive rod 321 to rotate in the other direction.

[0059] The working principle of this invention is as follows: After the device is started, the water pump 312 pumps the cold or hot water stored in the water tank 1 into the hollow tube 211. When the water flows through the water storage chamber 213 of the stimulation head 212, it stimulates the tongue root through heat exchange. At the same time, the flowing water impacts the impeller 223, which drives the rotating rod 222 and the misaligned first cam 224 to rotate, driving the massage part 23 to generate wave-like pressure from front to back to simulate swallowing peristalsis. When it is necessary to switch between hot and cold modes, the motor 322 drives the adjustment part 32 to rotate. On the one hand, the water source is switched through the guide seat 323 and the valve 318 is linked to change the return path. On the other hand, the second cam 327 pushes the piston plate 44 of the auxiliary mechanism 4 to generate negative pressure, first extracting the residual water of different temperatures in the pipeline and temporarily storing it in the hollow tube 42, and then delivering water of the new temperature. When the reverse switch is performed again, the temporarily stored water is injected back into the original chamber, thereby achieving cold and hot alternation and mechanical synergistic rehabilitation training without mixing interference in a single system cycle.

[0060] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A rehabilitation training device for dysphagia in neurological patients, characterized in that: Including water storage tanks; The training device includes a stimulation unit installed on a water tank, the stimulation unit being equipped with a linkage unit and multiple massage units; wherein, the stimulation unit is configured to stimulate the patient by receiving hot or cold fluid, and the fluid flowing through the stimulation unit can drive the linkage unit to operate, and the linkage unit can press multiple massage units in sequence when operating. The water supply mechanism includes a water supply section installed on a water storage tank and a regulating section installed on the water supply section. The water supply section is used to pump hot or cold water into the training mechanism, and the regulating section is used to control the water supply section to deliver hot or cold water. An auxiliary mechanism is installed on the water supply section to remove residual water in the water supply section pipeline before switching between hot and cold water supply.

2. The rehabilitation training device for dysphagia in neurological patients according to claim 1, characterized in that: A partition plate is fixedly connected inside the water storage tank, which divides the water storage tank into a hot water chamber and a cold water chamber.

3. The rehabilitation training device for dysphagia in neurological patients according to claim 1, characterized in that: The stimulation part includes a hollow tube, which is mounted on a bracket of a water storage tank. A stimulation head is fixedly connected to the end of the hollow tube. A water storage cavity is opened on the stimulation head. A water delivery channel is opened in the middle of the stimulation head and is connected to the water storage cavity. Water outlet channels are opened on both the front and rear sides of the hollow tube, and one end of the water outlet channel is connected to the water storage cavity. One end of the two water outlet channels is fixedly connected to a water storage box, and a water outlet pipe is connected to the water storage box.

4. The rehabilitation training device for dysphagia in neurological patients according to claim 3, characterized in that: The linkage includes a support frame, which is fixedly connected inside the hollow tube. A rotating rod is rotatably connected to the support frame via a bearing. An impeller is fixedly installed at one end of the rotating rod, and first cams are fixedly installed in an array at the other end of the rotating rod.

5. The rehabilitation training device for dysphagia in neurological patients according to claim 3, characterized in that: The massage unit includes a movable groove. Multiple movable grooves are arranged in an array at the lower end of a hollow tube. A lifting block is slidably connected inside the movable groove. A first lifting rod is piston-type inserted into the upper end of the movable groove, and one end of the first lifting rod is fixedly connected to the lifting block. A second lifting rod is piston-type inserted into the lower end of the movable groove, and one end of the second lifting rod is fixedly connected to the lifting block. A pressing block is fixedly connected to the lower end of the second lifting rod. A spring is fixedly connected between the lifting block and the inner wall of the movable groove.

6. The rehabilitation training device for dysphagia in neurological patients according to claim 2, characterized in that: The water supply section includes a three-way pipe, which is fixedly connected to the water storage tank. Its two ends are respectively connected to the hot water chamber and the cold water chamber. A water pump is fixedly installed at the upper end of the three-way pipe, and the drain end of the water pump is fixedly connected to the water supply pipe. Both chambers of the water storage tank are connected to drain pipes, and the upper ends of the two drain pipes are connected together and connected to a return pipe.

7. The rehabilitation training device for dysphagia in neurological patients according to claim 6, characterized in that: Both ends of the two drain pipes are equipped with a first check valve and a second check valve. Valves are also installed on the drain pipes, and small gears are installed on the valve shafts.

8. A rehabilitation training device for dysphagia in neurological patients according to claim 6, characterized in that: The adjustment unit includes a drive rod, which is rotatably connected to a three-way pipe via a sealed bearing. A motor is fixedly installed on the three-way pipe, and the output shaft of the motor is fixedly connected to the central rotating shaft of the drive rod. One end of the drive rod located inside the three-way pipe is rotatably connected to a guide seat via a bearing. A ring is fixedly sleeved on the drive rod, and torsion springs are fixedly connected to both sides of the ring. The other end of the torsion springs is fixedly connected to the inner wall of the guide seat. A large gear and a second cam are also fixedly installed on the drive rod.

9. A rehabilitation training device for dysphagia in neurological patients according to claim 1, characterized in that: Two limit blocks are fixedly installed inside the tee pipe.

10. A rehabilitation training device for dysphagia in neurological patients according to claim 6, characterized in that: The auxiliary mechanism includes a drainage pipe, which is fixedly connected to the drain pipe. The other end of the drainage pipe is fixedly connected to a hollow cylinder. A piston rod is piston-type inserted into one end of the hollow cylinder. A piston plate is fixedly connected to one end of the piston rod. A compression spring is fixedly connected between the piston plate and the hollow cylinder. A guide seat is fixedly connected to the top surface of the water storage tank. A sliding rod is slidably connected to the guide seat, and the sliding rod is fixedly connected to the piston rod.

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