A debridement care device for medical care

Abstract

This invention discloses a wound cleaning and nursing device for medical care, belonging to the field of medical care equipment technology. It includes a main unit, a rinsing device, a waste suction device, and a fixation device. The rinsing device generates negative pressure within a negative pressure tube using the Venturi effect, drawing in outside air and spraying a spiral water stream through a first nozzle, a guide plate, and a third nozzle. Simultaneously, a water stream containing dense bubbles is sprayed through a second nozzle, utilizing the cavitation effect to achieve deep wound cleaning. The waste suction device is mounted on the nozzle via a ball joint, using negative pressure generated by a negative pressure pump to immediately recover waste fluid. The fixation device generates ultrasonic vibrations through an energy guide plate and a transducer to assist in the removal of small debris from the wound, and, in conjunction with bandages and fixation rings, achieves stable limb immobilization. This invention solves the problems of incomplete wound cleaning and limited rinsing effects in existing wound cleaning equipment, significantly improving the effectiveness and efficiency of wound cleaning and nursing care.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing equipment technology, and in particular to a wound cleaning and nursing device for medical and nursing use. Background Technology

[0002] In the field of medical care, wound debridement is a crucial step in wound care, aiming to remove necrotic tissue, foreign objects, bacteria, and secretions from the wound to create favorable conditions for healing. However, existing debridement equipment generally suffers from incomplete debridement in practice, mainly in the following aspects: Firstly, traditional irrigation devices mostly use a single-direction direct water flow to rinse the wound. The water flow can only act on the surface of the wound and cannot penetrate into the folds, depressions, and deep tissue spaces of the wound. As a result, small foreign objects, necrotic tissue fragments, and bacteria embedded deep in the wound cannot be effectively removed. Residual contaminants can continue to trigger inflammatory responses, delay the wound healing process, and in severe cases, may even lead to aggravated wound infection, affecting the patient's recovery and the quality of care. Secondly, existing debridement equipment has a single irrigation method and lacks physical vibration assistance to the wound and immediate waste fluid recycling functions. During the irrigation process, it is easy to cause the irrigation fluid and waste fluid to mix and splash, which not only increases the risk of cross-infection but also pollutes the nursing environment, causing inconvenience to medical staff and increasing patient discomfort and nursing burden.

[0003] For example, CN202210538630.9 proposes an emergency department wound debridement and care device, which includes two sets of shells and a connector. The two sets of shells are fixedly connected by the connector, which is made of a tough material. The device uses a semiconductor cooler to realize the cold compress care function during the debridement process. However, the device only uses conventional rinsing to clean the surface of the wound. The rinsing water flow is unidirectional and cannot penetrate deep into the wound tissue for thorough debridement. It also does not have an ultrasonic vibration-assisted dissection function, which has limited effect on removing small fragments and necrotic tissue embedded deep in the wound. At the same time, it lacks an immediate waste liquid recycling mechanism, which can easily cause splashing of rinsing liquid and environmental pollution during the debridement process. It fails to effectively solve the problem of insufficient debridement of existing debridement equipment.

[0004] This invention utilizes the Venturi effect to generate negative pressure through a negative pressure tube within the rinsing device, drawing in outside air. This air is then sprayed out in a spiral stream through the synergistic action of the first nozzle, guide plate, and third nozzle. Simultaneously, a stream of water containing dense bubbles is sprayed out through the second nozzle, achieving deep and thorough rinsing of the wound through the cavitation effect. The waste suction device uses negative pressure to immediately recover waste liquid, maintaining a clean wound cleaning environment. Ultrasonic-level micro-vibrations are generated by the transducer and energy guide plate within the fixing device, assisting in the removal of small fragments from the wound. The synergistic effect of these three components significantly improves the thoroughness and efficiency of wound cleaning and care. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a wound cleaning and nursing device for medical care, which solves the problems of existing wound cleaning equipment having a single rinsing method, insufficient wound cleaning, lack of immediate waste liquid recycling and ultrasonic-assisted wound cleaning functions.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a medical care wound cleaning and nursing device, comprising a main unit and a rinsing device. The main unit is placed at the site of use, and is equipped with casters for easy movement. The main unit has multiple collection bottles for storing and collecting liquids. The main unit contains a negative pressure pump and a pressurized water pump. The rinsing device is connected to the main unit via a bamboo-joint tube and can clean the wound with water flow, thereby achieving the effect of wound cleaning and nursing. The device also includes a waste suction device and a fixation device. The waste suction device can immediately collect the waste fluid generated during the wound cleaning process, and the fixation device can assist in wound cleaning and fix the patient's limbs through ultrasonic vibration.

[0007] Furthermore, the rinsing device includes a handle, a nozzle, and a cover plate. The handle is fixed to the outside of the nozzle and has a control switch for controlling the flow of water. One end of the nozzle is connected to the main unit via a bamboo-joint tube and to a collection bottle for liquid supply. The lower end of the nozzle has a nozzle, and a cover plate is located below the nozzle. A negative pressure tube is installed inside the nozzle. The negative pressure tube has a structure that is wide at both ends and narrow in the middle, which can accelerate the water flow and then decelerate it, thereby generating negative pressure using the Venturi effect. The side of the negative pressure tube has an opening and a one-way valve to draw in outside air and ensure that the liquid does not flow out.

[0008] Furthermore, the nozzle is connected to a negative pressure pipe, and a first nozzle with a ring-shaped cloth is provided on the inner side of the nozzle. The direction of the first nozzle is tangential to the cross-section of the negative pressure pipe. A guide plate with an arc-shaped structure is provided on the inner side of the nozzle, and a certain gap is left between the guide plate and the edge of the nozzle. A second nozzle with a ring-shaped cloth is provided in the middle of the cover plate, and a third nozzle is provided on the outer side of the cover plate. The third nozzle is located in the gap between the guide plate and the edge of the nozzle. The third nozzle is inclined inward and to the side, so that it can spray a spiral water flow. The third nozzle is made of one-piece molded silicone material, which facilitates cleaning and prevents clogging.

[0009] Furthermore, the waste suction device is mounted on the nozzle via a spherical structure. The waste suction device includes a mounting ring, a first cover, and a second cover. The mounting ring is mounted on the nozzle and has a connection port on its side for connecting to the negative pressure pump on the main unit. The lower end of the mounting ring has a suction port for sucking up waste liquid. The first cover is mounted on the lower end of the mounting ring. The second cover is located inside the first cover and is connected by ribs to form a communicating cavity. The first and second covers are conical structures that are smaller at the top and larger at the bottom. A silicone ring is fixed to the lower end of the first cover to better fit the patient's skin. The lower end of the second cover has a vertical groove.

[0010] Furthermore, the fixing device includes a first housing, a waste collection trough, an energy guiding plate, and a fixing ring. The first housing is placed on a platform at the usage site. The waste collection trough is slidably provided on one side of the first housing. An energy guiding plate is provided at the upper end of the first housing. The energy guiding plate is made of metal and has evenly distributed through holes. A transducer is provided below the energy guiding plate. The transducer is connected to the main unit via a wire. A strap is provided at the upper end of the first housing for fixing the user's limbs. The fixing ring is set above the first housing via the strap. The energy guiding plate has raised patterns, with the height of the raised patterns being higher in the middle and lower at both ends, thereby ensuring that the vibration of the energy guiding plate can be better transmitted to the wound that needs to be cleaned. A gasket is provided below the fixing ring. The fixing ring is made of metal and has a fin-like structure for heat dissipation.

[0011] Beneficial effects The present invention has the following beneficial effects: (1) The present invention generates negative pressure and draws in outside air through the venturi effect of the negative pressure tube in the flushing device. The water is sprayed onto the guide plate through the first nozzle. The water is rotated by the guiding effect of the guide plate. Then, a spiral water flow is sprayed out through the third nozzle. At the same time, a water flow with dense bubbles is sprayed out through the second nozzle. The cavitation effect is used to deeply flush the wound. Compared with the traditional single-direction direct water flow flushing method, the spiral water flow can penetrate into the folds, depressions and deep tissue gaps of the wound, which significantly improves the thoroughness of debridement and effectively removes foreign objects, necrotic tissue fragments and bacteria embedded deep in the wound.

[0012] (2) The present invention uses the negative pressure generated by the negative pressure pump through the suction device to immediately suck up and collect the waste liquid generated during the rinsing process through the suction port at the lower end of the mounting ring. The cavity formed between the first cover and the second cover ensures the effective recycling of waste liquid. The fit design of the silicone ring prevents the splashing and overflow of waste liquid. The vertical groove is set to ensure the suction of waste liquid while avoiding the pulling of the wound skin by the negative pressure, keeping the wound cleaning and nursing environment clean and tidy, and reducing the risk of cross-infection.

[0013] (3) The present invention drives the energy conduction plate to generate ultrasonic-level micro-vibrations through the transducer in the fixation device. Combined with the conduction effect of the raised pattern on the energy conduction plate and the fixation function of the fixation ring, ultrasonic-level micro-vibrations are generated at the wound, thereby peeling the small fragments generated at the wound site from the tissue and assisting the irrigation device to perform deep debridement. At the same time, the design of the bandage realizes the stable fixation of the patient's limb and reduces the patient's discomfort during the debridement process.

[0014] (4) The present invention uses a ball joint connection design between the rinsing device and the waste suction device to allow the rinsing device to be adjusted to different angles and cover different cleaning areas. The conical structure of the first and second covers effectively prevents the splashing of rinsing water. Combined with the detachable design of the waste collection tank, it facilitates the cleaning of waste liquid and the daily maintenance of the device, and improves the ease of use and practicality of the wound cleaning and care device.

[0015] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rinsing device, waste suction device, and fixing device of the present invention; Figure 3 This is a schematic diagram of the rinsing device and the waste suction device of the present invention; Figure 4 This is an exploded view of the flushing device and the waste suction device of the present invention; Figure 5 This is a cross-sectional view of the waste suction device of the present invention; Figure 6 This is a cross-sectional view of the nozzle of the flushing device of the present invention; Figure 7 This is a schematic diagram of the structure of the cover plate of the rinsing device of the present invention; Figure 8 This is a schematic diagram of the fixing device of the present invention; Figure 9 This is a cross-sectional view of the first housing of the fixing device of the present invention; Figure 10 This is a schematic diagram of the fixing ring of the fixing device of the present invention.

[0017] Reference numerals: Main unit 1; Display and control panel 101; Collection bottle 102; Fixing device 2; First housing 201; Waste collection tank 202; Energy guiding plate 203; Strap 204; Transducer 205; Fixing ring 206; Gasket 207; Embossing 208; Flushing device 3; Handle 301; Spray pipe 302; Nozzle 303; Negative pressure pipe 304; One-way valve 305; First nozzle 306; Guide plate 307; Cover plate 308; Second nozzle 309; Third nozzle 310; Waste suction device 4; Mounting ring 401; First cover 402; Second cover 403; Vertical groove 404; Silicone ring 405. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 — Figure 10 This invention provides a technical solution: a medical wound cleaning and nursing device includes a main unit 1 and a rinsing device 3. The main unit 1 is placed at the place of use, and is equipped with casters at the bottom for easy movement. The main unit 1 is equipped with multiple collection bottles 102 for storing and collecting liquids. The main unit 1 is equipped with a negative pressure pump and a pressurized water pump. The rinsing device 3 is connected to the main unit 1 through a bamboo tube and can clean the wound with water flow to achieve the effect of wound cleaning and nursing. It also includes a waste suction device 4 and a fixing device 2. The waste suction device 4 can collect the waste liquid generated during the wound cleaning process in real time, and the fixing device 2 can assist in wound cleaning and fix the patient's limbs through ultrasonic vibration.

[0020] like Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the medical care wound cleaning device includes an irrigation device 3, which includes a handle 301, a nozzle 302, and a cover plate 308. The handle 301 is fixed to the outside of the nozzle 302 and has a control switch (not shown) for controlling the flow of water. One end of the nozzle 302 is connected to the main unit 1 via a bamboo-joint tube and to a collection bottle 102 for liquid supply. The lower end of the nozzle 302 has a nozzle 303, and the cover plate 308 is located below the nozzle 303. A negative pressure tube 304 is installed inside the nozzle 302. The negative pressure tube 304 has a structure that is wide at both ends and narrow in the middle, which can accelerate the water flow and then decelerate it to generate negative pressure using the Venturi effect. The side of the negative pressure tube 304 has an opening and a one-way valve 305 to draw in outside air. To ensure that the liquid does not flow outwards, the nozzle 303 is connected to the negative pressure pipe 304. The inner side of the nozzle 303 is provided with a first nozzle 306 with a ring of cloth. The direction of the first nozzle 306 is the tangent direction of the cross section of the negative pressure pipe 304. The inner side of the nozzle 303 is provided with a guide plate 307. The guide plate 307 has an arc-shaped structure and a certain gap is left between the guide plate 307 and the edge of the nozzle 303. The middle part of the cover plate 308 is provided with a second nozzle 309 with a ring of cloth. The outer side of the cover plate 308 is provided with a third nozzle 310. The third nozzle 310 is located in the gap between the guide plate 307 and the edge of the nozzle 303. The third nozzle 310 is inclined inwards and to the side, so that it can spray a spiral water flow. The third nozzle 310 is made of one-piece molded silicone material, which is easy to clean and prevents clogging.

[0021] In a specific embodiment: During use, the main unit 1 is started by an external power supply, and the corresponding water flow parameters are controlled through the display and control panel 101 on the main unit 1. Then, the rinsing device 3 is placed above the patient's wound, and the pressurized water pump is started by controlling the button on the handle 301, thereby transporting the rinsing liquid in the collection bottle 102 to the nozzle 303. During the process, the liquid is pressurized and rapidly depressurized through the negative pressure pipe 304, thereby generating negative pressure through the Venturi effect, thereby drawing in outside air through the one-way valve 305, and then spraying the water flow through the first nozzle 306 onto the guide plate 307. Then, through the guiding effect of the guide plate 307, the water flow is rotated, and the rotating water flow is sprayed out through the third nozzle 310. Meanwhile, due to the spiral inclination of the third nozzle 310, the water flow forms a spiral shape, resulting in a relatively concentrated water flow at close range and a relatively diffused water flow at long range, forming an hourglass-like structure to facilitate different rinsing conditions. At the same time, the inhaled outside air will quickly mix with the water flow and be sprayed out through the second nozzle 309, thus forming a water flow with dense bubbles. This cavitation effect is used to rinse the wound. It should also be noted that due to the guiding effect of the guide plate 307, the water flow velocity at the edge of the nozzle 303 is higher, resulting in a higher water flow pressure from the third nozzle 310, while the water flow velocity at the second nozzle 309 is lower, resulting in a lower water flow pressure from the second nozzle 309, in order to adapt to different cleaning requirements.

[0022] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the medical care wound cleaning and nursing device also includes a waste suction device 4. A spherical structure is provided on the nozzle 302. The waste suction device 4 is installed on the nozzle 302 through the spherical structure. The waste suction device 4 includes a mounting ring 401, a first cover 402 and a second cover 403. The mounting ring 401 is installed on the nozzle 302. The side of the mounting ring 401 is provided with a connection port for connecting to the negative pressure pump on the main unit 1. The lower end of the mounting ring 401 is provided with a suction port for suctioning waste liquid. The first cover 402 is installed at the lower end of the mounting ring 401. The second cover 403 is provided inside the first cover 402 and is connected by ribs to form a connected cavity. The first cover 402 and the second cover 403 are conical structures that are smaller at the top and larger at the bottom. A silicone ring 405 is fixed at the lower end of the first cover 402 to better fit the patient's skin. The lower end of the second cover 403 is provided with a vertical groove 404.

[0023] In a specific embodiment: during use, the silicone ring 405 at the lower end of the first cover 402 is attached to cover and wrap the wound area of ​​the patient that needs to be cleaned. The negative pressure pump in the main unit 1 is adjusted and turned on by the display and control panel 101, so that the suction port at the lower end of the mounting ring 401 generates negative pressure, thereby sucking in and collecting the waste liquid generated by the rinsing device 3 through the cavity formed between the first cover 402 and the second cover 403.

[0024] Meanwhile, during use, since the nozzle 302 and the mounting ring 401 are connected by a ball joint, the rinsing device 3 can be adjusted to different angles to cover different cleaning areas. At the same time, the first cover 402 and the second cover 403 can prevent water from splashing from the rinsing device 3, ensuring the cleanliness of the wound cleaning process and preventing contamination.

[0025] Meanwhile, since the second cover 403 has a vertical groove 404 below it, the first cover 402 and the second cover 403 can fit against the skin while ensuring that waste liquid can be drawn in from the vertical groove 404, and that the negative pressure generated in the cavity will not pull on the skin at the wound.

[0026] like Figure 2 , Figure 8 , Figure 9 and Figure 10 As shown, the medical care wound cleaning and nursing device also includes a fixing device 2. The fixing device 2 includes a first housing 201, a waste collection tank 202, an energy guiding plate 203, and a fixing ring 206. The first housing 201 is placed on a platform at the place of use. The waste collection tank 202 is slidably provided on one side of the first housing 201. The energy guiding plate 203 is provided at the upper end of the first housing 201. The energy guiding plate 203 is made of metal and has evenly distributed through holes. A transducer 205 is provided below the energy guiding plate 203. The first housing 201 is connected to the main unit 1 via a wire. The upper end of the first housing 201 is provided with a strap 204 for fixing the user's limbs. The fixing ring 206 is set above the first housing 201 via the strap 204. The energy guiding plate 203 is provided with a raised texture 208. The height of the raised texture 208 is higher in the middle and lower at both ends, so as to ensure that the vibration of the energy guiding plate 203 can be better transmitted to the wound that needs to be cleaned. A pad 207 is provided below the fixing ring 206. The fixing ring 206 is made of metal and is provided with a fin-like structure for heat dissipation.

[0027] In a specific embodiment: during use, the limb to be cleaned is first fixed to the energy-conducting plate 203 on the first housing 201 by the strap 204, and the tightness of the strap 204 is adjusted so that the fixing ring 206 is fixed to the outside of the wound to be cleaned. Then, the transducer 205 is activated by the control adjustment of the display and control panel 101 on the main unit 1, so that the energy-conducting plate 203 generates ultrasonic level vibration. Under the transmission action of the fixing ring 206 and the ridges 208 on the energy-conducting plate 203, the wound generates ultrasonic level micro-vibration, thereby peeling off the small fragments generated at the injury site, thereby achieving the effect of assisting in wound cleaning.

[0028] Working principle: When using the medical debridement and nursing device provided by the present invention, the main unit 1 is first started by connecting to an external power source. The pressure, flow rate and other parameters of the flushing water are set through the display and control panel 101 on the main unit 1. At the same time, the internal pressurized water pump and negative pressure pump of the main unit 1 are turned on, so that the system enters the standby state.

[0029] During the debridement and irrigation stage: Position the nozzle 303 of the irrigation device 3 at the patient's wound, press the control switch on the handle 301, and the pressurized water pump will start, delivering the irrigation fluid stored in the collection bottle 102 through the bamboo-joint tube into the nozzle 302. After the irrigation fluid enters the negative pressure tube 304 inside the nozzle 302, due to the special structure of the negative pressure tube 304 (large at both ends and narrow in the middle), the fluid velocity increases rapidly and the pressure rises quickly when passing through the narrow middle section. Subsequently, the flow velocity decreases sharply when entering the thicker section at the outlet end. According to Bernoulli's principle and the Venturi effect, a significant negative pressure area is formed in the narrow middle section of the negative pressure tube 304. This negative pressure draws in air from the outside through the one-way valve 305 at the side opening. The design of the one-way valve 305 ensures that air can only flow in in one direction and that the irrigation fluid will not leak outwards.

[0030] The flushing fluid is pressurized by the negative pressure pipe 304 and enters the nozzle 303. It is first sprayed out tangentially through the first nozzle 306. Since the direction of the first nozzle 306 is set to the tangential direction of the cross-section of the negative pressure pipe 304, the water flow gains rotational kinetic energy when it is sprayed out. The rotating water flow hits the arc-shaped guide plate 307. The arc structure of the guide plate 307 further guides the water flow to accelerate along the arc surface, which further increases the rotational speed and kinetic energy of the water flow. The water, accelerated by rotation, flows out from the gap between the guide plate 307 and the edge of the nozzle 303. A portion of the water enters the third nozzle 310. Due to the special angle design of the third nozzle 310, which is inclined inward and to the side, the water is further rectified and accelerated when passing through the third nozzle 310. After being sprayed out, it forms a spiral water jet. This spiral water jet has concentrated energy and strong impact at close range, which can effectively flush away contaminants and necrotic tissue on the surface of the wound. At a distance, the water gradually diffuses and the coverage area increases, which is convenient for uniformly rinsing larger wound areas and forming an hourglass-shaped rinsing area to meet different wound cleaning and care needs.

[0031] Simultaneously, outside air drawn in through the negative pressure pipe 304 mixes thoroughly with another portion of the rinsing fluid within the nozzle 303, and is then ejected through the second nozzle 309. Because the air is evenly dispersed in the water flow as tiny bubbles, a gas-liquid mixture with numerous dense bubbles is formed. When this microbubble-containing water flow contacts the wound surface, the bubbles rupture under pressure changes and the irregular structure of the wound surface, generating a microjet and a localized high-temperature, high-pressure cavitation effect. This cavitation effect effectively impacts and peels away bacteria, biofilms, and tiny foreign objects embedded in the interstitial spaces of the deep wound tissue—a deep debridement effect that traditional unidirectional direct water flow cannot achieve. Meanwhile, due to the guiding effect of the guide plate 307, the water flow velocity at the edge of the nozzle 303 is higher, the water pressure sprayed from the third nozzle 310 is relatively high, while the water flow velocity and pressure at the second nozzle 309 are relatively low. The combination of two water flows with different pressures can perform differentiated cleaning for areas with different depths and degrees of contamination of the wound, improving the targeting and thoroughness of the wound cleaning.

[0032] Waste liquid recovery stage: During the rinsing process, the waste suction device 4 operates synchronously. The negative pressure pump inside the main unit 1 is activated via the display and control panel 101, generating negative pressure suction at the suction port at the lower end of the mounting ring 401. The silicone ring 405 at the lower end of the first cover 402 is attached to the skin around the patient's wound. The elastic material of the silicone ring 405 can closely conform to the skin surface of patients of different body types, forming a relatively sealed negative pressure recovery space. The rinsing waste liquid generated by the rinsing device 3 is sucked in by negative pressure within the cavity between the first cover 402 and the second cover 403, and transported through the connection port and pipeline on the side of the mounting ring 401 to the collection bottle 102 inside the main unit 1 for collection and storage. The vertical groove 404 at the lower end of the second cover 403 ensures smooth suction of waste liquid while allowing external air to be moderately replenished through the vertical groove 404, preventing excessive negative pressure in the cavity from causing pulling and adsorption damage to the skin tissue at the wound site, thus ensuring the safety and comfort of the waste liquid recovery process.

[0033] Because the nozzle 302 and the mounting ring 401 are connected by a ball joint, the operator can flexibly adjust the spray direction of the rinsing device 3 according to the position and angle of the patient's wound, so that the rinsing water can cover wound areas of different positions and sizes. At the same time, the waste suction device 4 can adjust its angle synchronously with the rinsing device 3 to ensure the effective recovery of waste liquid. The conical structure of the first cover 402 and the second cover 403 effectively blocks the splashing of the rinsing water, ensuring the cleanliness of the wound cleaning process and reducing the risk of cross-infection.

[0034] Ultrasonic-assisted debridement stage: During or after irrigation and debridement, ultrasonic-assisted debridement can be performed using the fixation device 2. First, the limb to be cleaned is placed on the energy-conducting plate 203 at the upper end of the first housing 201. The limb is then fixed using straps 204, and the tightness of the straps 204 is adjusted to secure the fixation ring 206 to the outside of the wound. The transducer 205 is activated via the display and control panel 101. The transducer 205 converts electrical energy into ultrasonic mechanical vibration energy, driving the metal energy-conducting plate 203 to generate high-frequency micro-vibrations at the ultrasonic level. The raised textures 208 on the energy-conducting plate 203 have a distribution structure that is high in the middle and low at both ends. This design allows the vibration energy to be concentrated and conducted towards the center along the height gradient of the raised textures 208, ensuring that the ultrasonic vibration is efficiently conducted to the wound. Simultaneously, the fixation ring 206 is made of metal and has a heat dissipation fin structure, which not only assists in the conduction of ultrasonic vibrations but also plays a role in heat dissipation during vibration, preventing excessively high local temperatures. Under the action of ultrasonic micro-vibration, small fragments, necrotic tissue and foreign objects embedded in the tissue gaps deep in the wound are vibrated and peeled off. Then the flushing device 3 and the waste suction device 4 can be restarted to flush and recover the peeled fragments and waste liquid, thereby achieving the synergistic debridement effect of ultrasonic vibration and water flushing, which significantly improves the thoroughness of debridement.

[0035] After the wound cleaning is completed, turn off all functional modules on the main unit 1, disassemble the waste suction device 4 for cleaning and disinfection, slide the waste collection tank 202 out of the first housing 201 to clean the residual waste liquid, and dispose of the waste liquid in the collection bottle 102 as medical waste in accordance with regulations, thus completing the entire wound cleaning and nursing process.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wound cleaning and nursing device for medical care, comprising a main unit (1) and a rinsing device (3), wherein the main unit (1) is placed at the site of use, and the main unit (1) is equipped with a negative pressure pump and a pressurized water pump, and the rinsing device (3) is connected to the main unit (1) via a bamboo-joint tube, characterized in that, It also includes a waste suction device (4) and a fixing device (2); The rinsing device (3) includes a handle (301), a nozzle (302), and a cover plate (308). The handle (301) is fixed to the outside of the nozzle (302). One end of the nozzle (302) is connected to the main unit (1) through a bamboo tube. The lower end of the nozzle (302) is provided with a nozzle (303). The cover plate (308) is provided below the nozzle (303). The nozzle (302) is provided with a negative pressure pipe (304). The negative pressure pipe (304) has a structure that is large at both ends and thin in the middle. The side of the negative pressure pipe (304) is provided with an opening and a one-way valve (305). The nozzle (303) is connected to the negative pressure pipe (304). The inner side of the nozzle (303) is provided with a first nozzle (306) with a ring of cloth. The inner side of the nozzle (303) is provided with a guide plate (307). The guide plate (307) has an arc-shaped structure. There is a gap between the guide plate (307) and the edge of the nozzle (303). The middle part of the cover plate (308) is provided with a second nozzle (309) with a ring of cloth. The outer side of the cover plate (308) is provided with a third nozzle (310). The third nozzle (310) is located in the gap between the guide plate (307) and the edge of the nozzle (303). The waste suction device (4) is mounted on the nozzle (302) through a spherical structure. The waste suction device (4) includes a mounting ring (401), a first cover (402) and a second cover (403). The mounting ring (401) is mounted on the nozzle (302). The mounting ring (401) has a connection port on its side and a suction port at its lower end. The first cover (402) is mounted on the lower end of the mounting ring (401). The second cover (403) is provided inside the first cover (402) and forms a connected cavity. The first cover (402) and the second cover (403) are conical structures with a smaller upper part and a larger lower part. A silicone ring (405) is fixed at the lower end of the first cover (402), and a vertical groove (404) is provided at the lower end of the second cover (403). The fixing device (2) includes a first housing (201), a waste collection trough (202), an energy guiding plate (203), and a fixing ring (206). The first housing (201) is placed on a platform of the site of use. The waste collection trough (202) is slidably provided on one side of the first housing (201). The energy guiding plate (203) is provided at the upper end of the first housing (201). The energy guiding plate (203) is made of metal. The energy guiding plate (203) has evenly distributed through holes. A transducer (205) is provided below the energy guiding plate (203). The transducer (205) is connected to the host (1) through a wire. A strap (204) is provided at the upper end of the first housing (201). The fixing ring (206) is set above the first housing (201) through the strap (204). The energy guiding plate (203) has raised patterns (208). A gasket (207) is provided below the fixing ring (206).

2. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The main unit (1) is equipped with casters at the bottom and multiple collection bottles (102) on the main unit (1). The main unit (1) is also equipped with a display and control panel (101) for controlling the corresponding water flow parameters and negative pressure parameters.

3. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The first nozzle (306) is tangential to the cross-section of the negative pressure tube (304), and the third nozzle (310) is inclined inward and to the side. The third nozzle (310) is made of one-piece molded silicone material.

4. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The handle (301) is equipped with a control switch for controlling the flow of water. The nozzle (302) is equipped with a spherical structure for installing the waste suction device (4). The nozzle (302) and the mounting ring (401) are connected by a spherical joint.

5. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The connection port on the side of the mounting ring (401) is used to connect the negative pressure pump on the host (1). The first cover (402) and the second cover (403) are connected by ribs to form a connected cavity.

6. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The height of the raised texture (208) is high in the middle and low at both ends. The fixing ring (206) is made of metal and has a fin-like structure for heat dissipation.

7. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The through holes on the energy guiding plate (203) are arranged in a circular and uniform manner, and a controller for controlling the working frequency of the transducer (205) is provided between the transducer (205) and the host (1).

8. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The diameters of the two ends of the negative pressure pipe (304) are larger than the diameter of the middle end.

9. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The silicone ring (405) is made of an elastic material, and the inner diameter of the silicone ring (405) is adapted to the skin around the patient's wound, so that the silicone ring (405) can fit tightly against the patient's skin.

10. The medical wound cleaning and nursing device as described in claim 1, characterized in that, The strap (204) is made of an elastic material with adjustable tightness. One end of the strap (204) is provided with Velcro or buckle for fixing the user's limbs. The waste collection trough (202) is a detachable structure.

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