Disposable handheld synchronous injection type autologous platelet-rich gel wound surface spraying device

Abstract

The invention discloses a disposable handheld synchronous injection type autologous platelet-rich gel wound surface spraying device, and relates to the technical field of medical wound surface treatment equipment.The disposable handheld synchronous injection type autologous platelet-rich gel wound surface spraying device comprises a shell and an anti-skid grab handle which are integrally formed, and a first hose and a second hose which are matched with 10 ml / 1 ml materials are arranged in the shell; stable fixing is achieved through a splayed elastic clamp and an anti-slip strip, the synchronous injection assembly comprises a driving motor, a third synchronous wheel with the wheel ratio being 1: 10 and a matched synchronous wheel, the synchronous injection assembly is combined with an integrally-formed elastic piston piece, rotary motion is converted into precise linear propelling, manual operation is replaced by automatic driving, it is guaranteed that two materials are synchronously conveyed according to the ratio being 10: 1, and the production efficiency is improved. Real-time uniform mixed spraying is achieved through the connecting pipe and the mixed spraying piece, the structure is compact, handheld and portable, the forming stability of the autologous platelet-rich gel can be improved, the labor intensity of medical care and material waste are reduced, and the device is suitable for treating chronic wounds such as diabetic feet and pressure sores.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical wound treatment equipment, in particular to a disposable handheld synchronous injection type autologous platelet-rich gel wound spraying device. BACKGROUND

[0002] In the current medical wound treatment field, autologous platelet-rich gel (APG) is a commonly used biomaterial for the treatment of chronic wounds (such as diabetic foot, pressure sores, etc.), and has become one of the indispensable core materials in clinical diagnosis and treatment due to its excellent biocompatibility and healing-promoting properties. The key to its treatment effect depends on the precise mixing of platelet-rich plasma (PRP) and thrombin-calcium agent mixture. In clinical practice, it is necessary to strictly follow the 10ml PRP and 1ml thrombin-calcium agent ratio to achieve uniform mixing, so as to ensure the stable formation of the gel and the subsequent wound repair efficiency. However, in the preparation and spraying process of the material, there is a core technical bottleneck in the existing technology: the lack of an automatic synchronous driving structure that can accommodate the 10ml and 1ml double-specification clinical standard syringes, making it difficult to control the injection synchronization and proportioning accuracy during the mixing process. At present, part of the operation in clinical practice still relies on manual operation of the double-pipeline injection device. Medical staff need to use their experience to synchronize the push rods of the two types of syringes, which not only requires a lot of labor, but also is affected by human factors such as uneven hand force and fluctuating operation rhythm, making it easy to cause the problem of different injection speeds of the two materials. Among them, most of the existing synchronous injection devices can only adapt to a single type of syringe, and cannot meet the clinical standard ratio requirement of 10ml and 1ml. The synchronous driving mechanism lacks targeted transmission ratio design, resulting in insufficient synchronous pushing precision and large deviation of the mixing ratio of the two materials. This problem directly triggers a chain reaction: on the one hand, the imbalance of the ratio and the asynchronization of the injection will cause the APG gel to form unevenly and have poor stability, which cannot fully exert its healing-promoting effect, and even may affect the wound adhesion due to the abnormal gel texture, prolonging the treatment cycle of the patient; On the other hand, the high error rate of manual operation and the defects of the device adaptability not only reduce the diagnosis and treatment efficiency, but also increase the medical cost due to material waste, and bring additional risks to the treatment of chronic wound patients, which seriously restricts the efficient application of APG in clinical practice. Therefore, there is an urgent need for a disposable handheld synchronous injection type autologous platelet-rich gel wound spraying device. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a disposable handheld synchronous injection type autologous platelet-rich gel wound spraying device, which can solve the above technical problems.

[0004] In order to achieve the above object, the present application provides the following technical scheme: a disposable handheld synchronous injection type autologous platelet-rich gel wound spraying device, comprising a shell, the shell is provided with an anti-skid handle and a mounting shell at the front end of the mounting shell, the mounting shell is fixedly connected to the front end of the anti-skid handle, and the two are integrally formed, the front end of the anti-skid handle is provided with a charging port, the left and right ends of the anti-skid handle are both provided with a buckle groove, the upper part of the mounting shell is fixedly connected with a control panel and an observation window through bolts, and the rear end of the mounting shell is fixedly connected with a door two and a door one through a clamp and a movable groove; Wherein, the inside of the mounting shell in the shell is provided with a soft tube one and a soft tube two, the liquid outlet end below the soft tube one and the soft tube two is fixedly connected with a connector, the lower part of the connector is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with a mixed spraying piece, and the inside of the soft tube one and the soft tube two is provided with a synchronous injection assembly.

[0005] Preferably, the upper part of the inside of the mounting shell in the shell is fixedly connected with a bearing plate through bolts, the lower part of the bearing plate is provided with a clamp, the clamp is arranged in the inside of the mounting shell of the shell, and the clamp is integrally formed with the shell.

[0006] Preferably, the clamp is horizontally placed in a split structure, both ends of the split structure are provided with elasticity, and the soft tube one and the soft tube two are correspondingly inserted into both ends of the clamp; Wherein, the split wall of the clamp is embedded with an anti-skid strip.

[0007] Preferably, the synchronous injection assembly comprises a piston one, a piston two, a synchronous wheel one, a synchronous wheel two, a driving motor and a synchronous wheel three, the synchronous wheel one, the synchronous wheel two and the synchronous wheel three are embedded and arranged on the bearing plate, the synchronous wheel three is arranged between the synchronous wheel one and the synchronous wheel two, the soft tube one is coaxially arranged with the synchronous wheel one, the soft tube two is coaxially arranged with the synchronous wheel two, and the piston two and the piston one are respectively slidably connected in the soft tube one and the soft tube two. Wherein, the driving motor is embedded and arranged in the clamp.

[0008] Preferably, the piston two and the piston one are integrally formed by a piston and a threaded rod, and the pistons on the piston two and the piston one are respectively movably connected in the soft tube one and the soft tube two.

[0009] Preferably, the threaded rods on the piston two and the piston one are respectively threadedly connected with the corresponding synchronous wheel one and the synchronous wheel two.

[0010] Preferably, the inside of the anti-skid handle is fixedly provided with a storage battery, a control panel and four fixing blocks, the four fixing blocks are arranged on one side of the control panel, and the four fixing blocks are all rectangular. Preferably, two structurally identical bearings are embedded on each of the fixing blocks, and the two bearings correspond to the threaded rods on the piston piece one and the piston piece two respectively.

[0011] Preferably, the synchronous wheel three is integrally formed by a large wheel and a small wheel, the ratio of the large wheel to the small wheel is 1:10, and the synchronous wheel one, the synchronous wheel two and the synchronous wheel three are connected through a synchronous belt transmission. Preferably, the hose one, the hose two, the connecting pipe and the mixing spraying piece are communicated with each other.

[0012] Compared with the prior art, the beneficial effects of the present application are: 1. The self-handheld synchronous injection type autologous platelet-rich gel wound spraying device, through the 1:10 fixed gear ratio design of the synchronous wheel three, combined with the non-slip characteristics of the synchronous wheel transmission, ensures that the pushing speed of the two specifications of syringes and the material output ratio strictly match the clinical requirements of 10:1, effectively makes up for the defects of the existing device that can only adapt to a single specification and the insufficient synchronous pushing precision, guarantees the uniform mixing of the platelet-rich plasma and the thrombin-calcium agent mixture, significantly improves the formation stability and texture uniformity of the autologous platelet-rich gel (APG), fully plays the biological efficiency of promoting wound healing, and avoids the problem of poor treatment effect caused by unbalanced mixing ratio.

[0013] 2. The self-handheld synchronous injection type autologous platelet-rich gel wound spraying device, through the automatic driving mechanism composed of the driving motor and the synchronous wheel, replaces the traditional manual double-pipeline injection operation which relies on the experience of medical staff, completely avoids the injection asynchronization problem caused by human factors such as uneven hand force and operation rhythm fluctuation, and reduces the operation error rate to the minimum.

[0014] 3. The self-handheld synchronous injection type autologous platelet-rich gel wound spraying device adopts precise synchronous conveying and real-time mixing of double materials, avoids the gel failure caused by proportion deviation or injection asynchronization, reduces the waste of precious biological materials such as platelet-rich plasma, and thus reduces the clinical medical cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and examples: Figure 1 It is a schematic diagram of the self-handheld synchronous injection type autologous platelet-rich gel wound spraying device of the present application; Figure 2 It is a schematic diagram of the internal section of the self-handheld synchronous injection type autologous platelet-rich gel wound spraying device of the present application; Figure 3 It is a schematic diagram of the internal section of the self-handheld synchronous injection type autologous platelet-rich gel wound spraying device of the present application; Figure 4 is the enlarged schematic view of A in the present application Figure 3 is the enlarged schematic view of A in the present application Figure 5 is the enlarged schematic view of A in the present application Figure 3 is the enlarged schematic view of B in the present application Figure 6 is the enlarged schematic view of A in the present application Figure 3 is the enlarged schematic view of C in the present application

[0016] Fig. 1 is a shell; 2 is a charging port; 3 is an anti-skid handle; 4 is a buckle groove; 5 is a control panel; 6 is an observation window; 7 is a bin door one; 8 is a bin door two; 9 is a connecting pipe; 10 is a mixed spraying piece; 11 is a hose one; 12 is a hose two; 13 is a bearing plate; 14 is a piston piece one; 15 is a piston piece two; 16 is a synchronous wheel one; 17 is a synchronous wheel two; 18 is a driving motor; 19 is a synchronous wheel three; 20 is an interface; 21 is a storage battery; 22 is a control board; 23 is a fixed block; 24 is a bearing; 25 is a clamp; 26 is an anti-skid strip; 28 is a mounting shell. DETAILED DESCRIPTION

[0017] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0018] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like based on the orientation or position relationship shown in the drawings, is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0019] In the description of the present application, greater than, less than, more than and the like are understood as not including the number, above, below and the like are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0020] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0021] Please refer to Figures 1-6The application provides a technical scheme: a disposable handheld synchronous injection type autologous platelet-rich gel wound spraying device, which comprises a shell 1, the shell 1 is provided with an anti-skid handle 3 and a mounting shell at the front end of the mounting shell 28, the mounting shell 28 is fixedly connected to the front end of the anti-skid handle 3 and is integrally formed with the anti-skid handle 3, the front end of the anti-skid handle 3 is provided with a charging port 2, the left and right ends of the anti-skid handle 3 are both provided with buckle grooves 4, the upper portion of the mounting shell 28 is fixedly connected with a control panel 5 and an observation window 6 through bolts, and the rear end of the mounting shell 28 is fixedly connected with a bin door two 8 and a bin door one 7 through a clamp and a movable groove; The observation window 6 can realize real-time observation of the remaining amount of materials in the hose one 11 and the hose two 12 and whether there are air bubbles, so that the working state can be confirmed without disassembly, and the diagnosis and treatment efficiency is improved. The inside of the mounting shell 28 is provided with the hose one 11 and the hose two 12, the liquid outlet ends below the hose one 11 and the hose two 12 are fixedly connected with interfaces 20, the lower portion of the interface 20 is fixedly connected with a connecting pipe 9, one end of the connecting pipe 9 is fixedly connected with a mixed spraying piece 10, and the inside of the hose one 11 and the hose two 12 is provided with a synchronous injection assembly. The upper portion of the inside of the mounting shell 28 is fixedly connected with a bearing plate 13, and the lower portion of the bearing plate 13 is provided with a clamp 25, the clamp 25 is arranged in the inside of the mounting shell 28 and is integrally formed with the shell 1. The clamp 25 is horizontally arranged in a split structure, the two ends of the split structure are both provided with elasticity, and the hose one 11 and the hose two 12 are correspondingly inserted into the two ends of the clamp 25. The inside of the clamp 25 is embedded with anti-skid strips 26, so that the displacement of the hose caused by the axial force during injection is avoided, and the stable output of materials is ensured. The elastic structure can be compatible with the slight size deviation of the hose one 11 and the hose two 12, the hose can be automatically clamped during insertion, no additional locking piece is needed, the disassembly and assembly are efficient, the elastic deformation can absorb the slight impact force during vibration or installation of the device, and the hose breakage and liquid leakage caused by rigid clamping are avoided. The synchronous injection assembly comprises a piston one 14, a piston two 15, a synchronous wheel one 16, a synchronous wheel two 17, a driving motor 18 and a synchronous wheel three 19, the synchronous wheel one 16, the synchronous wheel two 17 and the synchronous wheel three 19 are all embedded and arranged on the bearing plate 13, the synchronous wheel three 19 is arranged between the synchronous wheel one 16 and the synchronous wheel two 17, the synchronous wheel one 16 is coaxially arranged with the hose one 11, the hose two 12 is coaxially arranged with the synchronous wheel two 17, and the piston two 15 and the piston one 14 are respectively slidably connected in the hose one 11 and the hose two 12. The driving motor 18 is embedded and arranged in the clamp 25. The synchronous wheel three 19 is integrally formed by a large wheel and a small wheel, the ratio of the large wheel to the small wheel is 1:10, and the synchronous wheel one 16, the synchronous wheel two 17 and the synchronous wheel three 19 are drivingly connected through a synchronous belt. The synchronous belt transmission ratio is stable, without sliding and without missing rotation, which ensures uniform injection speed and improves the uniformity of gel mixing; The piston piece two 15 and the piston piece one 14 are integrally formed by a piston and a threaded rod, the pistons on the piston piece two 15 and the piston piece one 14 are movably connected in the hose one 11 and the hose two 12 respectively, the threaded rod has a certain elasticity, without splicing gap, avoiding material leakage from the connection between the piston and the threaded rod during injection, ensuring medical safety; The threaded rods on the piston piece two 15 and the piston piece one 14 are respectively threadedly connected with the corresponding synchronous wheel one 16 and the synchronous wheel two 17; The inside of the anti-skid handle 3 is fixedly installed with a battery 21, a control panel 22 and four fixing blocks 23, the four fixing blocks 23 are all arranged on one side of the control panel 22, and the four fixing blocks 23 are all rectangularly arranged; Two structurally same bearings 24 are embeddedly installed on each fixing block 23, the two bearings 24 are respectively adapted to the threaded rods on the piston piece one 14 and the piston piece two 15, and the piston piece one 14 and the piston piece two 15 are correspondingly inserted into the bearings 24; The hose one 11, the hose two 12, the connecting pipe 9 and the mixing spraying piece 10 are in communication with each other; The model of the control panel 5 is: medical grade micro film touch panel MTP-3020-05; The model of the mixing spraying piece 10 is: medical disposable three-way mixing spraying head HST-101-22G; The model of the driving motor 18 is: micro DC speed reduction motor GM12-370-100; The model of the battery 21 is: medical grade lithium polymer battery LP703040-2S; The model of the control panel 22 is: medical grade micro control panel MCU-STM32F103-074.

[0022] Working principle: first, the hose one 11 and the hose two 12 respectively loaded with 10ml platelet-rich plasma and 1ml thrombin-calcium mixture are correspondingly inserted into the two ends of the eight-shaped elastic clamp 25 in the installation shell 28, the clamp 25 is automatically clamped on the hose through elastic deformation, the inner wall anti-skid strip 26 avoids axial displacement of the hose, without additional locking parts, so as to realize efficient fixing, at the same time, the hose one 11 and the hose two 12 are docked with the connecting pipe 9 through the interface 20, so as to ensure that the material transmission channel is sealed, medical staff can real-time check the remaining amount of material in the hose and whether there is air bubble through the observation window 6, and confirm the working state; Then, the injection speed, push stroke and other parameters are input through the control panel 5 above the mounting shell 28, the control panel 22 receives the instructions and completes the parameter calibration, the battery 21 provides power for the driving motor 18 and other components, at this time the synchronous wheel one 16, the synchronous wheel two 17 and the synchronous wheel three 19 are in a state of waiting to be driven, the threaded rod of the piston piece one 14 and the piston piece two 15 are accurately positioned through the bearing 24 and are threadedly connected with the corresponding synchronous wheels, and the coaxial arrangement of the hose and the synchronous wheel ensures that the piston movement is not biased; Then, the driving motor 18 drives the synchronous wheel three 19 to rotate, and the power is synchronously transmitted to the synchronous wheel one 16 and the synchronous wheel two 17 through the synchronous belt transmission, the 1:10 gear ratio of the synchronous wheel three 19 is accurately converted into the synchronous push speed of the piston piece one 14 and the piston piece two 15, and the mixing ratio of the two materials is adapted to 10:1, the one-piece structure of the piston piece avoids material leakage, the elastic threaded rod absorbs small impact force and compensates for installation deviation, the bearing 24 reduces the friction of the threaded rod movement, and the material in the push hose is transported to the mixing spray piece 10 through the connecting pipe 9, realizing real-time and uniform mixing; Finally, the mixed autologous platelet gel is sprayed to the target wound through the mixing spray piece 10, medical staff can hold the device stably by means of the anti-skid handle 3 and the buckle slot 4, and flexibly adjust the spraying angle, after the injection is completed or the preset stroke is reached, the control panel 22 triggers the driving motor 18 to stop working, the self-locking function of the threaded connection prevents the backflow of the material, and the one-time use of the hose, the connecting pipe 9 and the mixing spray piece 10 is disassembled, the reusable shell 1 and the internal components are sterilized, and the battery 21 is charged through the charging port 2 to be ready for use next time.

[0023] Structure description: The shell 1 is the core bearing component of the device, which is made of one-piece molding process without splicing gap, is convenient for disinfection, meets the sterile requirements, improves the overall strength, meets the clinical disassembly and handheld requirements, and is divided into the lower anti-skid handle 3 and the front mounting shell 28, which are integrally formed without additional connecting parts, compact structure, handheld portable, and suitable for multiple scene clinical treatment; The charging port 2 is arranged at the front end of the anti-skid handle 3 and is used for supplementing the power of the battery 21 in the anti-skid handle 3, the charging port 2 is away from the core working area of injection, spraying and the like, and will not interfere with the wound treatment operation during charging, and can also avoid the pollution of the liquid medicine splashing on the interface 20, and is suitable for the battery 21 to realize wireless power supply, get rid of the restraint of power cord, meet the multiple scene mobile treatment requirements such as bedside and operating room, and improve the flexibility of the device; Anti-slip handle 3: integrally formed with the shell 1, located below the shell 1, provides a holding carrier for medical staff, the inside is used to install the battery 21, control panel 22 and fixing block 23, the surface of the handle is designed to increase the friction of the hand, especially suitable for holding when wearing medical gloves, to avoid the device from slipping off, in line with the ergonomic design, to disperse the holding pressure, not easy to cause hand swelling after long time operation, reduce the labor intensity of medical staff, the internal space is reasonably utilized, accommodating power supply and control related components, making the overall structure of the device compact, balancing portability and functionality; Dial slot 4: opened at the left and right ends of the anti-slip handle 3, adapting to the curvature of the fingers, for medical staff to insert their fingers when holding, forming an anchor point after the fingers are inserted, enhancing the stability of holding, avoiding the device from shifting due to hand shaking during operation, guiding medical staff to form a correct holding posture naturally, at this time the thumb and index finger can easily touch the control panel 5 above, reducing the risk of accidental touch or inconvenience, the force point is concentrated in the dial slot 4, making it easy to adjust the spray angle accurately, avoiding fatigue caused by excessive palm clamping; Control panel 5: fixed on the top of the installation shell 28 by bolts, as an operation instruction input component, used to set injection speed, push distance and other parameters, the installation position is in the area that is easy to reach when holding, medical staff can complete parameter setting without adjusting the holding posture, reducing treatment interruption, the bolt fixing method is firm and can withstand slight collisions in clinical operation, not easy to loosen, parameter input is intuitive and convenient, cooperating with the control panel 22 to achieve precise control, reducing the operation threshold, no complex training is required to get started; Observation window 6: fixed on the top of the installation shell 28 by bolts, opposite to the installation position of the soft tube one 11 and the soft tube two 12, used to observe the remaining amount of material and whether there are bubbles in the soft tube, without disassembling the door, the material state can be confirmed in real time, avoiding the risk of pollution and operation interruption caused by disassembly, improving diagnosis and treatment efficiency, the transparent material can clearly present the material situation, making it convenient for medical staff to supplement the material or discharge the bubbles in time, ensuring the continuity and smoothness of the treatment process, the bolt fixing method is convenient for subsequent maintenance and replacement, and has good sealing performance, preventing dust or liquid medicine from entering the device interior; Door one 7: fixed at the rear end of the installation shell 28 by clamps and movable slots, corresponding to the installation warehouse of the soft tube two 12, used to close and open the disassembly channel of the soft tube two 12, the cooperation of the clamp and the movable slot realizes quick opening and closing, facilitating the quick loading and disassembly of the soft tube two 12, shortening the preparation time for treatment, after closing, it can protect the internal soft tube two 12, avoiding the contact of external dust and pollutants, ensuring the sterility of the material transmission channel, the separate warehouse design can avoid the mistake of installing the wrong specifications of the soft tube one 11 and the soft tube two 12, cooperating with the foolproof function of the clamp 25, double protection of assembly accuracy; Door two 8: fixed in the rear end of the installation shell 28 through the cooperation of the clamp and the movable slot, symmetrically arranged with the door one 7, corresponding to the installation warehouse of the hose one 11, used for closing and opening the disassembly channel of the hose one 11, cooperated with the door one 7, realizing independent disassembly of double hoses without interference, improving the operation convenience of quick opening and closing structure, adapting to the clinical batch patient treatment scene, protecting the hose one 11 in the closed state, preventing the hose from being damaged and the liquid from leaking due to collision during transportation or operation, and maintaining the clean environment inside the device; Connecting pipe 9: fixedly connected between the interface 20 and the mixing spraying piece 10 below, as a material transmission channel, used for conveying the materials in the hose one 11 and the hose two 12 to the mixing spraying piece 10, firmly connected and excellent in sealing performance, avoiding material leakage or pollution during transmission, the length and inner diameter of the pipe are adapted to the material flow demand, ensuring smooth synchronous conveying of two materials without affecting the mixing ratio, the material meets the medical standard, and is chemically stable, without reaction with platelet-rich plasma or thrombin-calcium agent mixture, ensuring medical safety; Mixing spraying piece 10: fixedly connected at the end of the connecting pipe 9, used for receiving two materials conveyed by the connecting pipe 9 and realizing real-time mixing, and directing the mixed autologous platelet gel to the wound surface, the internal channel design can promote full convection mixing of two materials, avoid stratification or uneven mixing, improve the gel uniformity, the spraying end can be flexibly adjusted in angle, adapt to different shapes and positions of the wound surface of diabetic foot, pressure sores and the like, ensure uniform coverage of the gel, and the connection mode with the connecting pipe 9 is convenient, facilitating one-time replacement, avoiding cross infection risk; Hose one 11: installed in the inside of the installation shell 28 and fixed by the clamp 25, used for containing 10ml platelet-rich plasma, is a carrier for material storage and output, adapts to the clinical 10ml standard specification, meets the loading demand of platelet-rich plasma, cooperates with the piston one 14 of the synchronous injection assembly to accurately output materials, is soft and has a certain strength, is convenient for being fixed by the clamp 25 and can withstand the pressure during piston advancement, is not easy to be damaged, and is reliably connected and sealed with the interface 20 and the connecting pipe 9, avoiding material leakage; Hose two 12: installed in the inside of the installation shell 28 and symmetrically arranged with the hose one 11, fixed by the clamp 25, used for containing 1ml thrombin-calcium agent mixture, adapts to the clinical 1ml standard specification, forms a 10:1 ratio with the hose one 11, meets the material demand of gel preparation, is symmetrically arranged to be coaxially aligned with the synchronous wheel two 17, ensures that the piston two 15 is not biased during advancement, meets the medical sterile requirement, avoids reaction with materials, and is convenient for observing the internal material state, and realizes visual monitoring in cooperation with the observation window 6; The bearing plate 13 is fixed on the upper part of the installation shell 28 by bolts, used for embedding the installation of the synchronous wheel one 16, the synchronous wheel two 17, the synchronous wheel three 19 and the driving motor 18, providing a stable installation reference for the synchronous injection assembly, ensuring the coaxial degree of the synchronous wheel set and the driving motor 18, avoiding the deviation or jamming during transmission, isolating the synchronous injection assembly from the hoses, the connecting pipe 9 and other components below, preventing the mutual interference between the moving parts and the material transmission parts, improving the mechanical stability, the bolted connection is firm and can withstand the vibration during the operation of the driving motor 18, ensuring the transmission accuracy; The piston piece one 14 is integrally formed by a piston and a threaded rod, is connected in the hose one 11 in a sliding manner, the threaded rod is connected with the synchronous wheel one 16 in a threaded manner, and is inserted into the bearing 24, used for pushing the material in the hose one 11 out, the integrally formed structure avoids the leakage of the material from the connection between the piston and the threaded rod during injection, ensures the medical safety, the threaded connection between the threaded rod and the synchronous wheel one 16 can accurately convert the rotary motion into linear pushing motion, improves the injection accuracy, the threaded rod has a certain elasticity, can absorb the small impact force in the pushing process, compensates the installation deviation, avoids the jamming, and cooperates with the bearing 24 to reduce the motion friction and improve the pushing smoothness; The piston piece two 15 is integrally formed by a piston and a threaded rod, has the same structure as the piston piece one 14, is connected in the hose two 12 in a sliding manner, the threaded rod is connected with the synchronous wheel two 17 in a threaded manner, and is inserted into the bearing 24, used for pushing the material in the hose two 12 out, forms a symmetrical adaptation with the piston piece one 14, matches the 1:10 transmission ratio of the synchronous wheel set, ensures the accurate output ratio of the two materials 10:1, the integrally formed structure ensures the sealing performance, avoids the leakage of the material, the cooperation of the elastic threaded rod and the bearing 24 reduces the motion resistance and mechanical wear, ensures the uniform pushing speed, and improves the stability of the gel mixing; The synchronous wheel one 16 is embedded and installed on the bearing plate 13, is coaxially arranged with the hose one 11, is connected with the synchronous wheel three 19 through a synchronous belt, is connected with the threaded rod of the piston piece one 14 in a threaded manner, used for transmitting the power of the driving motor 18 to the piston piece one 14, the coaxial arrangement ensures that there is no radial eccentric load when the piston piece one 14 moves, avoids the eccentric wear of the threaded rod and the synchronous wheel, prolongs the service life of the components, the synchronous wheel has stable transmission ratio, no sliding and no loss of rotation, can ensure the uniform pushing speed of the piston piece one 14, keeps synchronization with the piston piece two 15, ensures the accurate mixing ratio of the materials, the embedded installation mode saves space, makes the device structure compact, and meets the demand of handheld and portability; Synchronous wheel two 17: embeddedly installed in the bearing plate 13 and the clamp 25, coaxially arranged with the hose two 12, connected with the synchronous wheel three 19 through the synchronous belt, and threaded with the threaded rod of the piston piece two 15, used for transmitting the power of the driving motor 18 to the piston piece two 15, cooperated with the synchronous wheel one 16, receiving the power transmitted by the synchronous wheel three 19, realizing the synchronous movement of the double piston pieces, the embedded installation of the clamp 25 further improves the positioning accuracy, guarantees the coaxial degree with the hose two 12, avoids the piston movement jamming, the synchronous wheel transmission is stable, can accurately respond to the 1:10 wheel ratio of the synchronous wheel three 19, and ensures that the material output ratio meets the clinical requirements; Driving motor 18: installed on the bearing plate 13, connected with the synchronous wheel three 19, used as a power output component, provides driving power for the synchronous injection assembly, automatically drives instead of traditional manual pushing, completely avoids the injection asynchronization problem caused by the uneven hand force and the operation rhythm fluctuation and the like human factors, reduces the operation error rate, the power output is stable, the rotating speed can be accurately adjusted through the control board 22, different injection speed requirements can be adapted, different wound treatment scenes can be met, the installation on the bearing plate 13 is firm in position, the vibration is small during operation, and the overall stability of the device is not affected, meanwhile, the connection with the synchronous wheel group is compact, and the transmission efficiency is high; Synchronous wheel three 19: embeddedly installed on the bearing plate 13, arranged between the synchronous wheel one 16 and the synchronous wheel two 17, integrally formed by a large wheel and a small wheel, connected with the synchronous wheel one 16 and the synchronous wheel two 17 through the synchronous belt, used for transmitting power and adjusting the transmission ratio, the 1:10 wheel ratio accurately adapts to the output ratio of 10ml and 1ml materials, without additional adjustment, the 10:1 mixing of the two materials can be guaranteed, the existing device ratio deviation problem is solved, the integrally formed structure reduces the number of components, avoids loosening or lost rotation during transmission, improves the transmission stability, and the layout between the double synchronous wheels makes the power transmission uniform, ensures the synchronous rotation of the synchronous wheel one 16 and the synchronous wheel two 17, and guarantees the consistent advancing speed of the double piston pieces; Interface 20: fixedly connected to the liquid outlet ends of the hose one 11 and the hose two 12, used for connecting the connecting pipe 9, realizing the butt joint of the material channels of the hose and the connecting pipe 9, adopting a standard sealing connection structure, the connection is firm and leakage-free, the material can be prevented from leaking or being contaminated during the transmission process, the interface 20 is convenient to disassemble and assemble, the replacement of the one-off connecting pipe 9 is facilitated, the treatment preparation efficiency is improved, the material of the interface 20 meets the medical standard, has strong chemical stability, will not react with the material, and guarantees the safety and effectiveness of the gel preparation; Battery 21: fixedly installed inside the anti-slip handle 3, provides power for electrical components such as drive motor 18, control panel 22, etc. The built-in design makes the device wireless and portable, suitable for bedside, transfer and other scenarios. The device is installed inside the anti-slip handle 3, making the overall center of gravity lower, more stable when holding, not easy to tip over, strong endurance, can meet the treatment needs of multiple patients in clinical practice, the adaptive design of charging port 2 facilitates timely energy replenishment, ensuring continuous use of the device; Control panel 22: fixedly installed inside the anti-slip handle 3, electrically connected with the control panel 5, drive motor 18 and battery 21, as the control core of the device, used for receiving instructions, calibrating parameters and controlling the operation of drive motor 18. After receiving the parameter input from the control panel 5, it can accurately adjust the speed and stroke of the drive motor 18 to ensure synchronization precision. It has parameter calibration and fault feedback functions, can trigger stop instructions in time to prevent material backflow or excessive injection, and improve operation safety. It is installed inside the handle to avoid external contact, prevent liquid splashing and collision damage, prolong the service life of electronic components, and facilitate internal wiring to reduce the risk of failure. Fixed block 23: four rectangular blocks fixedly installed inside the anti-slip handle 3 on one side of the control panel 22, used to embed bearings 24. The rectangular structure has strong stability and can provide a firm installation reference for bearings 24 to ensure positioning accuracy. The four fixed blocks 23 are distributed to support two groups of bearings 24 simultaneously, ensuring that the threaded rods of piston 1 and piston 2 are balanced in force to avoid radial shaking during movement. The device is compactly installed in the internal space of the anti-slip handle 3 without affecting the layout of other components, ensuring the rationality of the overall structure. Bearing 24: two bearings are embedded in each fixed block 23 to adapt to the threaded rods of piston 1 and piston 2, respectively. They are used to support the threaded rods and reduce their movement friction, reducing the friction force during rotation and linear movement of the threaded rods, reducing the load of the drive motor 18, improving transmission efficiency, reducing mechanical noise and component wear, prolonging service life, ensuring coaxiality during movement of the threaded rods, avoiding eccentric wear or jamming, ensuring uniform piston advancement speed and improving synchronization injection accuracy. The embedded installation method is fixed and stable during operation, avoiding displacement due to vibration, ensuring the reliability of long-term use of the device. Clamp 25: integrated with the shell 1, arranged below the bearing plate 13, is a horizontally placed eight-shaped elastic structure, used to fix the hose one 11 and the hose two 12, and embedded with the synchronous wheel two 17. The elastic structure can be compatible with the slight size deviation of the hose, and can be automatically clamped when plugging, without the need for additional locking parts. The eight-shaped structure can accurately align the synchronous wheel one 16 and the synchronous wheel two 17, ensuring the coaxiality of the hose and the synchronous injection assembly, avoiding the movement of the piston to be biased, and absorbing the slight impact force during installation. The elastic deformation can avoid the damage of the hose and the leakage of the liquid medicine caused by rigid clamping. The integrated structure has high strength, is firmly connected with the shell 1, and is accurately positioned. Anti-slip strip 26: embedded and installed on the eight-shaped inner wall of the clamp 25, used to increase the friction between the clamp 25 and the hose, which can effectively avoid the displacement of the hose due to the axial force during injection, ensuring the stability of the material output, and not affecting the mixing ratio of 10:1. The material is soft (such as medical silicone), which will not cause wear when in contact with the outer wall of the hose, protecting the integrity of the hose and avoiding damage and leakage. The embedded installation method is not easy to fall off, and can maintain the anti-slip effect for a long time, improve the reliability of the hose fixing, and ensure the stability of the treatment process. Installation shell 28: is the core component of the shell 1, integrated with the anti-slip handle 3, and is used as the core component installation carrier. The rationality of the structure determines the stability of the material storage and synchronous injection.

[0024] The above describes the embodiments of the present application in combination with the drawings, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present application.

Claims

1. A disposable handheld synchronous injection-type autologous platelet-rich gel wound spraying device, comprising a shell (1), characterized in that: The outer shell (1) consists of an anti-slip handle (3) and a mounting shell at the front end of the mounting shell (28). The mounting shell (28) is fixedly connected to the front end of the anti-slip handle (3), and the two are integrally formed. The front end of the anti-slip handle (3) is provided with a charging port (2). The left and right ends of the anti-slip handle (3) are provided with buckle grooves (4). The upper part of the mounting shell (28) is fixedly connected with a control panel (5) and an observation window (6) by bolts. The rear end of the mounting shell (28) is fixedly connected with a second compartment door (8) and a first compartment door (7) by a clamp and a movable groove. The mounting housing (28) contains a first hose (11) and a second hose (12). The outlet ends of the first hose (11) and the second hose (12) are fixedly connected to an interface (20). A connecting pipe (9) is fixedly connected below the interface (20). A mixing spraying component (10) is fixedly connected to one end of the connecting pipe (9). A synchronous injection assembly is installed inside the first hose (11) and the second hose (12).

2. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 1, characterized in that: The mounting shell (28) is fixedly connected to the inside by bolts with a bearing plate (13). A clamp (25) is provided below the bearing plate (13). The clamp (25) is located inside the mounting shell (28) and is integrally formed with the outer shell (1).

3. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 2, characterized in that: The clamp (25) is a horizontally placed figure-eight structure. Both ends of the figure-eight structure are elastic, and hose one (11) and hose two (12) are inserted into the two ends of the clamp (25) respectively. Anti-slip strips (26) are embedded in the figure-eight shaped inner wall of the clamp (25).

4. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 3, characterized in that: The synchronous injection assembly includes piston component one (14), piston component two (15), synchronous wheel one (16), synchronous wheel two (17), drive motor (18), and synchronous wheel three (19). Synchronous wheel one (16), synchronous wheel two (17), and synchronous wheel three (19) are all embedded in the support plate (13). Synchronous wheel three (19) is located between synchronous wheel one (16) and synchronous wheel two (17). Synchronous wheel one (16) and hose one (11) are coaxially arranged. Hose two (12) and synchronous wheel two (17) are coaxially arranged. Piston component two (15) and piston component one (14) are slidably connected in hose one (11) and hose two (12), respectively. The clamp (25) is equipped with a drive motor (18).

5. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 4, characterized in that: The piston component two (15) and piston component one (14) are integrally formed by piston and threaded rod. The pistons on piston component two (15) and piston component one (14) are respectively movably connected in hose one (11) and hose two (12).

6. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 5, characterized in that: The threaded rods on piston part two (15) and piston part one (14) are respectively threadedly connected to the corresponding synchronous pulley one (16) and synchronous pulley two (17).

7. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 6, characterized in that: The anti-slip grip (3) has a battery (21), a control panel (22) and a fixing block (23) fixedly installed inside. There are four fixing blocks (23), and all four fixing blocks (23) are located on one side of the control panel (22), and all four fixing blocks (23) are rectangular.

8. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 7, characterized in that: Each of the fixed blocks (23) has two bearings (24) with the same structure embedded in it. The two bearings (24) are adapted to the threaded rods on piston part one (14) and piston part two (15) respectively. Piston part one (14) and piston part two (15) are inserted into the bearings (24) respectively.

9. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 8, characterized in that: The third synchronous pulley (19) is formed by the large pulley and the small pulley in one piece, with the ratio of the large pulley to the small pulley being 1:

10. The first synchronous pulley (16), the second synchronous pulley (17), and the third synchronous pulley (19) are connected by synchronous belt drive.

10. The disposable handheld synchronous injection autologous platelet-rich gel wound spraying device according to claim 9, characterized in that: The first hose (11), the second hose (12), the connecting pipe (9), and the mixing spraying component (10) are interconnected.

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