Medical care medicine sprayer

Abstract

The application discloses a medical care medicine sprayer and relates to the technical field of medical care. The medical care medicine sprayer comprises a shell, a handle fixedly connected to the circumferential surface of the shell, a switch arranged on the side surface of the handle, a fixed pipe fixedly connected to the circumferential surface of the shell, a negative pressure pulse piston medicine feeding device arranged on the inner wall of the shell, a pressure rotary medicine feeding device arranged on the inner wall of the shell and a powder uniform fusion device arranged on the circumferential surface of the shell. Through the arrangement of the negative pressure pulse piston medicine feeding device, the motor drives the driving bevel gear to rotate, and then the rotation shaft drives the cam to reciprocate, the cam drives the power piston to make reciprocating linear motion in the cylinder through the connecting rod, and the negative pressure pulse effect is formed. The preliminary extraction and negative pressure preparation of the liquid medicine are realized, and the double-channel pulse feeding of the liquid medicine is realized through the two groups of symmetrically arranged transmission assemblies, and the uniformity and stability of the liquid medicine output are improved.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing technology, specifically to a medical and nursing sprayer. Background Technology

[0002] What is a medical care sprayer? A medical care sprayer is a widely used device in medical care processes. Its main function is to spray liquid medicine in a mist or other form evenly and stably onto the part of the patient that needs treatment, so as to achieve the purpose of treatment, disinfection or infection prevention.

[0003] According to a public disclosure of a medical sprayer (publication number: CN115887887A), it includes: a housing and a receiving cavity, with the receiving cavity connected to the upper left part of the housing; a discharge pipe, connected to the upper left side of the housing, with its right side rotatably connected to and communicating with the receiving cavity; a piston rod, slidably connected to the upper part of the housing, with its left side slidably connected to the inner wall of the receiving cavity; a compression spring, connected between the right side of the piston rod and the housing, and fitted onto the right side of the piston rod; and a metering mechanism, with a metering mechanism for metered drug administration located in the upper left part of the housing, communicating with the receiving cavity. By moving a push rod to the left, the push rod drives the piston rod to the left via a baffle, thereby reducing the capacity of the receiving cavity to hold the drug. This allows medical personnel to administer the drug according to the patient's required dosage.

[0004] In the aforementioned application, the piston rod is moved to the left to change the volume of the receiving cavity by moving the push rod, which can achieve a certain degree of quantitative drug administration. However, there are still many problems in actual medical and nursing scenarios. It lacks effective control over the uniformity and stability of the drug output. In medical and nursing care, the uniform and stable spraying of the drug is crucial to the therapeutic effect. However, the structure in the aforementioned application cannot guarantee that the drug is output at a constant pressure and flow rate, which may lead to uneven distribution of the drug sprayed on the patient's site, affecting the therapeutic effect. Secondly, the function of the sprayer in this application is relatively simple. Therefore, we propose a medical and nursing sprayer. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a medical care sprayer that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a medical care sprayer, comprising a housing, a handle fixedly connected to the circumferential surface of the housing, a switch provided on the side of the handle, a fixing tube fixedly connected to the circumferential surface of the housing, a negative pressure pulse piston drug delivery device provided on the inner wall of the housing, a pressure rotary drug delivery device provided on the inner wall of the housing, and a powder uniform mixing device provided on the circumferential surface of the housing.

[0007] The negative pressure pulse piston drug delivery device includes a drug delivery bottle, which is threaded to the inner wall of a fixed tube. A negative pressure upward piston is slidably connected to the inner wall of the drug delivery bottle. A reset handle is fixedly connected to the bottom of the negative pressure upward piston. An infusion tube is fixedly connected to the top inner side of the fixed tube. An installation sleeve is fixedly connected to the inner wall of the housing. A motor is fixedly connected to the inner wall of the installation sleeve. A driving bevel gear is fixedly connected to the output shaft of the motor. A transmission plate is fixedly connected to the inner wall of the housing. A rotating shaft is rotatably connected through the side of the transmission plate. A driven bevel gear is fixedly connected to the circumferential surface of the rotating shaft. A cam is fixedly connected to one end of the rotating shaft. A connecting rod is hinged to the side of the cam. A power piston is hinged to the end of the connecting rod away from the cam. A partition plate is fixedly connected to the inner wall of the housing. A cylinder is fixedly connected through the side of the partition plate. A pulse outlet pipe is fixedly connected through the side of the cylinder. A delivery pipe is fixedly connected through the circumferential surface of the pulse outlet pipe. A heat dissipation groove is formed on the circumferential surface of the housing.

[0008] According to the above technical solution, the circumferential surface of the power piston is slidably connected to the inner wall of the cylinder, the active bevel gear and the driven bevel gear mesh with each other, the interior of the heat dissipation groove is connected to the interior of the fixed tube, and the initial extraction of the liquid medicine and the preparation of negative pressure are realized by the motor driving the active bevel gear. The design of the heat dissipation groove ensures the stability of the equipment during long-term operation and prevents the motor from overheating and affecting the extraction efficiency of the liquid medicine.

[0009] According to the above technical solution, the transmission plate, cam, connecting rod and power piston are arranged in two sets and are symmetrical to each other along the vertical central axis of the motor. The end of the infusion tube away from the fixed tube is fixedly inserted through the side of the two cylinders. Through the two sets of symmetrically arranged transmission plates, cams, connecting rods and power pistons, the dual-channel pulse delivery of the medicine is realized, which improves the uniformity and stability of the medicine output and ensures that the sprayer can continuously and stably provide medicine during operation.

[0010] According to the above technical solution, a one-way valve is installed inside the infusion tube, and a one-way valve is installed inside the pulse outlet tube. The one-way valve inside the infusion tube is unidirectionally directed from the drug bottle to the inside of the cylinder, and the one-way valve inside the pulse outlet tube is unidirectionally directed from the cylinder to the inside of the delivery tube. Two sets of one-way valves are provided, which effectively prevents backflow of the drug solution during delivery, ensures that the drug solution can flow in the predetermined direction, improves the reliability and working efficiency of the sprayer, and the configuration of two sets of one-way valves further enhances the stability and controllability of the drug solution output.

[0011] According to the above technical solution, the pressure rotary drug delivery device includes a front partition plate, which is fixedly connected to the inner wall of the housing. A rear dispensing sleeve is fixedly connected through and to the side of the front partition plate. A sealing rotary sleeve is rotatably connected to the end of the rear dispensing sleeve away from the front partition plate. A fan blade is fixedly connected to the circumferential surface of the sealing rotary sleeve. An impact blade is fixedly connected to the inner wall of the sealing rotary sleeve. A guide hole is opened on the inner wall of the rear dispensing sleeve. A connecting column is fixedly connected to the inner wall of the housing. The end of the connecting column away from the housing is fixedly connected to... The device has a front connecting sleeve with a water mist nozzle threaded onto its circumferential surface. The circumferential surface of the housing has a return air inlet. When the liquid medicine impacts the blades, the reaction force pushes the sealing rotating sleeve to rotate, which in turn drives the fan blades to rotate synchronously. The airflow generated by the fan blades rotates and forms a negative pressure circulation through the return air inlet, which not only enhances the atomization effect of the liquid medicine but also avoids the residue of the liquid medicine on the inner wall of the housing, allowing the liquid medicine to be directly and directionally output. At the same time, the threaded connection design between the front connecting sleeve and the water mist nozzle facilitates quick replacement of nozzles of different specifications to adapt to different treatment scenarios.

[0012] According to the above technical solution, the end of the rear liquid distribution sleeve away from the sealing rotating sleeve is fixedly connected to the end of the delivery pipe away from the pulse outlet pipe. The vertical central axis of the guide hole is perpendicular to the side of the impact blade. The number of guide holes is set to twice that of the impact blade, ensuring that the liquid can impact the impact blade evenly and powerfully, thereby generating stable rotational power.

[0013] According to the above technical solution, the return air vent is located behind the fan blades, and the number of fan blades is set to six, arranged in a ring array along the central axis of the sealed rotating sleeve. The design of six fan blades significantly improves the airflow efficiency, allowing the pressure rotary drug delivery device to directly spray the atomized drug in a directional manner during operation, or to allow the drug to be slightly dried after application, thereby improving the overall stability and user comfort of the equipment.

[0014] According to the above technical solution, the powder uniform fusion device includes a secondary transmission plate, which is fixedly connected to the side of the transmission plate. A secondary shaft is rotatably connected through the top of the secondary transmission plate. A transmission bevel gear is fixedly connected to one end of the secondary shaft, and a pulley is fixedly connected to the end of the secondary shaft away from the transmission bevel gear. A powder container is fixedly connected to the circumferential surface of the shell, and a stirring shaft is rotatably connected through the bottom of the powder container. A stirring disc is fixedly connected to one end of the stirring shaft, and a pulley is fixedly connected to the end of the stirring shaft away from the stirring disc. A belt is provided on the circumferential surface of the pulley. A liquid delivery pipe is fixedly connected through the circumferential surface of the delivery pipe, and a return pipe is provided on the circumferential surface of the delivery pipe. A regulating valve is provided on the circumferential surface of the delivery pipe. After closing the regulating valve, the solid powder and liquid agent can be fully mixed to form a uniform solution, realizing the dynamic balance of liquid delivery and return, and ensuring the precise adjustment of the liquid concentration during the powder fusion process.

[0015] According to the above technical solution, a pressure sequence valve is installed inside the liquid delivery pipe, the regulating valve is connected to the inside of the delivery pipe, one end of the return pipe is located at the front end of the regulating valve, and one end of the liquid delivery pipe is located at the rear end of the regulating valve. The pressure sequence valve can automatically open and close according to the pressure change in the pipeline, ensuring that the liquid in the liquid delivery pipe enters the powder tank only when the set pressure value is reached, thus avoiding premature or excessive mixing before the regulating valve is opened.

[0016] According to the above technical solution, the first pulley and the second pulley are connected by belt drive. The circumferential surfaces of the liquid delivery pipe and the liquid return pipe are fixedly connected to the partition plate, which realizes the stable rotation of the stirring shaft, thereby driving the stirring plate to fully stir the solid powder in the powder tank, ensuring the uniform mixing of powder and liquid medicine.

[0017] This invention provides a medical care sprayer. It has the following beneficial effects:

[0018] (1) The present invention uses a negative pressure pulse piston drug delivery device to enable the motor to drive the active bevel gear to rotate, and then the cam to reciprocate through the rotating shaft. The cam pushes the power piston to reciprocate linearly in the cylinder through the connecting rod, forming a negative pressure pulse effect. This not only realizes the initial extraction of the drug solution and the preparation of negative pressure, but also realizes the dual-channel pulse delivery of the drug solution through two sets of symmetrically arranged transmission components, which improves the uniformity and stability of the drug solution output. It also realizes the precise control of pulse drug delivery, so that the drug solution forms a uniform and dense drug film layer on the skin surface, which effectively improves the absorption efficiency and treatment of the drug. At the same time, the design of the negative pressure upward piston and the reset pull handle allows the drug bottle to continuously and stably provide the drug solution while automatically maintaining the negative pressure environment during the consumption of the drug solution.

[0019] (2) The present invention uses a pressure-rotating delivery device to enable the reaction force generated when the liquid medicine impacts the blades to drive the sealed rotating sleeve to rotate. This rotation simultaneously drives the fan blades to rotate. The airflow generated by the fan blades rotates and forms a negative pressure circulation system through the return air port. This system not only significantly enhances the atomization effect of the liquid medicine, but also ensures that the liquid medicine can be output directly and directionally, avoiding residue on the inner wall of the shell. The threaded connection design between the front connecting sleeve and the water mist nozzle allows users to quickly and easily replace different nozzles according to different treatment scenarios, or to perform slight air drying after applying the medicine, thereby improving the overall stability and comfort of the equipment.

[0020] (3) The present invention, through the setting of the powder uniform fusion device, ensures that the transmission bevel gear can rotate synchronously with the motor drive through the stable connection between the auxiliary transmission plate and the transmission plate. Then, the auxiliary shaft drives the pulley one to rotate, and the pulley one drives the pulley two to rotate through the belt drive. This series of mechanical linkages makes the stirring shaft start working. The stirring plate stirs the solid powder in the powder tank in an efficient manner. The pressure sequence valve in the liquid delivery pipe automatically adjusts according to the pressure in the pipe to ensure that the liquid enters the powder tank and mixes with the powder at the appropriate time. It also ensures the accuracy of the liquid concentration during the powder fusion process and meets the diverse needs of liquid concentration in different treatment scenarios. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional side view of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall three-dimensional cross-section of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional view of the three-dimensional drug delivery bottle of the present invention;

[0024] Figure 4 This is a three-dimensional cross-sectional structural schematic diagram of the housing of the present invention;

[0025] Figure 5 This is a three-dimensional structural schematic diagram of the negative pressure pulse piston drug delivery device of the present invention;

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the pressure rotary drug delivery device of the present invention;

[0027] Figure 7 This is a three-dimensional structural schematic diagram of the powder uniform blending device of the present invention.

[0028] In the diagram: 1. Housing; 2. Handle; 3. Switch; 4. Fixing tube; 5. Negative pressure pulse piston drug delivery device; 501. Drug bottle; 502. Negative pressure upward piston; 503. Infusion tube; 504. Mounting sleeve; 505. Motor; 506. Driving bevel gear; 507. Transmission plate; 508. Rotating shaft; 509. Driven bevel gear; 510. Cam; 511. Connecting rod; 512. Power piston; 513. Divider plate; 514. Cylinder; 515. Pulse outlet tube; 516. Heat dissipation groove; 517. Reset handle; 518. Delivery tube; 6. Pressure rotary drug delivery device 601. Front partition plate; 602. Rear liquid distribution sleeve; 603. Sealing rotating sleeve; 604. Fan blade; 605. Impact blade; 606. Guide hole; 607. Connecting column; 608. Front connecting sleeve; 609. Water mist nozzle; 610. Return air port; 7. Powder uniform blending device; 701. Secondary transmission plate; 702. Secondary shaft; 703. Transmission bevel gear; 704. Pulley one; 705. Powder tank; 706. Stirring shaft; 707. Stirring disc; 708. Pulley two; 709. Belt; 710. Liquid delivery pipe; 711. Liquid return pipe; 712. Regulating valve. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Please see Figures 1-7 One embodiment of the present invention is: a medical care sprayer, including a housing 1, a handle 2 fixedly connected to the circumferential surface of the housing 1, a switch 3 provided on the side of the handle 2, a fixing tube 4 fixedly connected to the circumferential surface of the housing 1, a negative pressure pulse piston drug delivery device 5 provided on the inner wall of the housing 1, a pressure rotation drug delivery device 6 provided on the inner wall of the housing 1, and a powder uniform mixing device 7 provided on the circumferential surface of the housing 1.

[0031] The negative pressure pulse piston drug delivery device 5 includes a drug delivery bottle 501, which is threaded to the inner wall of a fixed tube 4. A negative pressure upward displacement piston 502 is slidably connected to the inner wall of the drug delivery bottle 501. A reset handle 517 is fixedly connected to the bottom of the negative pressure upward displacement piston 502. An infusion tube 503 is fixedly connected to the top of the inner side of the fixed tube 4. An installation sleeve 504 is fixedly connected to the inner wall of the housing 1. A motor 505 is fixedly connected to the inner wall of the installation sleeve 504. A drive bevel gear 506 is fixedly connected to the output shaft of the motor 505. A transmission plate 507 is fixedly connected to the inner wall of the housing 1. The side of the transmission plate 507 is through and rotatably connected to... There is a rotating shaft 508, and a driven bevel gear 509 is fixedly connected to the circumferential surface of the rotating shaft 508. A cam 510 is fixedly connected to one end of the rotating shaft 508. A connecting rod 511 is hinged to the side of the cam 510. A power piston 512 is hinged to the end of the connecting rod 511 away from the cam 510. A partition plate 513 is fixedly connected to the inner wall of the housing 1. A cylinder 514 is fixedly connected through the side of the partition plate 513. A pulse liquid outlet pipe 515 is fixedly connected through the side of the cylinder 514. A delivery pipe 518 is fixedly connected and passes through the circumferential surface of the pulse liquid outlet pipe 515. A heat dissipation groove 516 is opened on the circumferential surface of the housing 1.

[0032] The circumferential surface of the power piston 512 is slidably connected to the inner wall of the cylinder 514. The driving bevel gear 506 and the driven bevel gear 509 mesh with each other. The interior of the heat dissipation groove 516 is connected to the interior of the fixed tube 4. The motor 505 drives the driving bevel gear 506 to realize the initial extraction of the liquid medicine and the preparation of negative pressure. The design of the heat dissipation groove 516 ensures the stability of the equipment during long-term operation and prevents the motor 505 from overheating and affecting the extraction efficiency of the liquid medicine.

[0033] The transmission plate 507, cam 510, connecting rod 511 and power piston 512 are arranged in two sets and are symmetrical to each other along the vertical central axis of the motor 505. The end of the infusion pipe 503 away from the fixed pipe 4 is fixedly inserted through the side of the two cylinders 514. Through the two sets of symmetrically arranged transmission plates 507, cam 510, connecting rod 511 and power piston 512, the dual-channel pulse delivery of the liquid medicine is realized, which improves the uniformity and stability of the liquid medicine output and ensures that the sprayer can continuously and stably provide liquid medicine during operation.

[0034] The infusion tube 503 is equipped with a one-way valve, and the pulse outlet tube 515 is equipped with a one-way valve. The one-way valve in the infusion tube 503 flows unidirectionally from the drug bottle 501 to the cylinder 514, and the one-way valve in the pulse outlet tube 515 flows unidirectionally from the cylinder 514 to the delivery tube 518. There are two sets of one-way valves, which effectively prevents backflow of the drug during delivery and ensures that the drug flows in the predetermined direction, improving the reliability and working efficiency of the sprayer. The configuration of two sets of one-way valves further enhances the stability and controllability of the drug output.

[0035] The pressure rotary drug delivery device 6 includes a front partition 601, which is fixedly connected to the inner wall of the housing 1. A rear dispensing sleeve 602 is fixedly connected through and to the side of the front partition 601. A sealing rotary sleeve 603 is rotatably connected to the end of the rear dispensing sleeve 602 away from the front partition 601. A fan blade 604 is fixedly connected to the circumferential surface of the sealing rotary sleeve 603. An impact blade 605 is fixedly connected to the inner wall of the sealing rotary sleeve 603. A guide hole 606 is provided on the inner wall of the rear dispensing sleeve 602. A connecting post 607 is fixedly connected to the inner wall of the housing 1. A front connecting sleeve is fixedly connected to the end of the connecting post 607 away from the housing 1. 608, the front connecting sleeve 608 is threadedly connected to a water mist nozzle 609 on its circumferential surface. The circumferential surface of the housing 1 is provided with a return air port 610. When the liquid medicine impacts the blades 605, the reaction force generated pushes the sealing rotating sleeve 603 to rotate, which in turn drives the fan blades 604 to rotate synchronously. The airflow generated by the rotation of the fan blades 604 forms a negative pressure circulation through the return air port 610, which not only enhances the atomization effect of the liquid medicine, but also avoids the residue of the liquid medicine on the inner wall of the housing 1, so that the liquid medicine can be directly and directionally output. At the same time, the front connecting sleeve 608 and the water mist nozzle 609 adopt a threaded connection design, which facilitates the quick replacement of nozzles of different specifications to adapt to different treatment scenarios.

[0036] The end of the rear dispensing sleeve 602 away from the sealing rotating sleeve 603 is fixedly connected to the end of the delivery pipe 518 away from the pulse outlet pipe 515. The vertical central axis of the guide hole 606 is perpendicular to the side of the impact blade 605. The number of guide holes 606 is set to twice that of the impact blade 605 to ensure that the liquid can impact the impact blade 605 evenly and powerfully, thereby generating stable rotational power.

[0037] The return air vent 610 is located behind the fan blades 604. There are six sets of fan blades 604 arranged in a ring along the central axis of the sealing rotating sleeve 603. The design of six sets of fan blades 604 significantly improves the airflow efficiency, allowing the pressure rotary drug delivery device 6 to directly spray the atomized drug in a directional manner during operation, or to allow the drug to be slightly dried after application, thereby improving the overall stability and user comfort of the equipment.

[0038] In use, the operator first pulls the reset handle 517 to keep the negative pressure upward piston 502 at the bottom of the administration bottle 501. Then, the liquid medicine is injected into the administration bottle 501. Next, the administration bottle 501 is placed at the bottom of the fixing tube 4, and then rotated to ensure a tight threaded connection between the administration bottle 501 and the fixing tube 4, ensuring a seal to prevent leakage. The switch 3 on the handle 2 is turned on to start the motor 505. The motor 505 rotates, driving the drive bevel gear 506 to rotate. Since the drive bevel gear 506 meshes with the driven bevel gear 509, it drives the rotating shaft 508 to rotate. The cam 510 at one end of the cylinder rotates accordingly. Through the hinge action of the connecting rod 511, the rotational motion of the cam 510 is converted into the reciprocating linear motion of the power piston 512 within the cylinder 514. When the power piston 512 moves upward, a negative pressure is formed within the cylinder 514. At this time, one-way valve 1 in the infusion tube 503 opens, and the medicine is drawn from the administration bottle 501 into the cylinder 514. When the power piston 512 moves downward, the pressure within the cylinder 514 increases, one-way valve 1 closes, and one-way valve 2 opens. The medicine is then forced into the delivery tube 518 through the pulse outlet tube 515. Due to the design... Two sets of symmetrical transmission plates 507, cams 510, connecting rods 511, and power pistons 512 are installed to achieve continuous dual-channel pulse delivery of the liquid medicine, making the output of the liquid medicine more uniform and stable. The liquid medicine in the delivery pipe 518 continues to move forward and enters the pressure rotary delivery device 6. The liquid medicine first impacts the impact blades 605 in the rear distribution sleeve 602. The reaction force generated pushes the sealing rotary sleeve 603 to rotate. The fan blades 604 on the sealing rotary sleeve 603 also rotate synchronously. The airflow generated by the rotation of the fan blades 604 forms a negative pressure circulation through the return air port 610. Then the liquid medicine flows from the pre-loaded... The water mist is sprayed from the water mist nozzle 609 on the threaded front connecting sleeve 608. At this time, the wind force generated by the fan blade 604 can further guide and diffuse the atomized medicine, ensuring that the medicine can evenly cover the target area and improve the treatment effect. When it is necessary to replace the columnar nozzle, simply rotate to remove the current water mist nozzle 609, and then select a columnar nozzle of appropriate size and thread it onto the front connecting sleeve 608. At this time, the wind force generated by the fan blade 604 can accelerate the spray speed of the columnar medicine, so that the medicine can reach the designated position more accurately and meet different treatment needs.

[0039] Note: After the administration bottle 501 is installed, the air that may be present after the administration bottle 501 is connected to the fixed tube 4 should be expelled first to ensure the accuracy and stability of the drug delivery. At the same time, the negative pressure upward piston 502 moves upward continuously under negative pressure to reduce the volume inside the bottle and can better fit the inner wall of the administration bottle 501, preventing air bubbles from being generated during the extraction process, which would affect the efficiency and accuracy of drug extraction. Operators do not need to worry about the problem of drug not being extracted due to the tilt of the shell 1.

[0040] Please see Figures 1-7Based on the above embodiments, in another embodiment of the present invention, the powder uniform blending device 7 includes a secondary transmission plate 701, which is fixedly connected to the side of the transmission plate 507. A secondary shaft 702 is rotatably connected through the top of the secondary transmission plate 701. A transmission bevel gear 703 is fixedly connected to one end of the secondary shaft 702, and a pulley 704 is fixedly connected to the end of the secondary shaft 702 away from the transmission bevel gear 703. A powder container 705 is fixedly connected to the circumferential surface of the housing 1, and a stirring shaft 706 is rotatably connected through the bottom of the powder container 705. A stirring disc 707 is fixedly connected to one end of a stirring shaft 706. A pulley 708 is fixedly connected to the end of the shaft 706 away from the stirring disc 707. A belt 709 is provided on the circumferential surface of the pulley 708. A liquid delivery pipe 710 is fixedly passed through the circumferential surface of the delivery pipe 518. A return pipe 711 is provided on the circumferential surface of the delivery pipe 518. A regulating valve 712 is provided on the circumferential surface of the delivery pipe 518. After closing the regulating valve 712, the solid powder and liquid agent can be fully mixed to form a uniform solution, realizing the dynamic balance between liquid delivery and return, and ensuring the precise adjustment of the liquid concentration during the powder fusion process.

[0041] The liquid delivery pipe 710 is equipped with a pressure sequence valve. The regulating valve 712 is connected to the inside of the delivery pipe 518. One end of the return pipe 711 is located at the front end of the regulating valve 712, and one end of the liquid delivery pipe 710 is located at the rear end of the regulating valve 712. The pressure sequence valve can automatically open and close according to the pressure change in the pipeline, ensuring that the liquid medicine in the liquid delivery pipe 710 enters the powder tank 705 only when the set pressure value is reached, thus avoiding premature or excessive mixing before the regulating valve 712 is opened.

[0042] Belt 704 and belt 708 are connected by belt 709. The circumferential surfaces of liquid delivery pipe 710 and liquid return pipe 711 are fixedly connected to the partition plate 513, which realizes the stable rotation of stirring shaft 706, thereby driving stirring plate 707 to fully stir solid powder in powder tank 705, ensuring uniform mixing of powder and liquid medicine.

[0043] In use, when a mixture of powder and liquid medication is needed for treatment, the operator first adds the solid powder to the powder container 705, then closes the regulating valve 712 and starts the motor 505. The motor 505 drives the active bevel gear 506 to rotate, which in turn drives the rotating shaft 508 to rotate through gear meshing. The rotating shaft 508 drives the cam 510 to rotate, which in turn drives the power piston 512 to reciprocate linearly within the cylinder 514 via the connecting rod 511, thus realizing the extraction and delivery of the liquid medication. When the pressure in the delivery pipe 518 reaches the set value, the pressure sequence valve in the liquid delivery pipe 710 automatically opens, and the liquid medication enters the powder container 705 through the liquid delivery pipe 710. At the same time, the rotation of the rotating shaft 508 also drives the transmission plate 507 to rotate. The transmission plate 507 drives the secondary shaft 702 to rotate through the secondary transmission plate 701. The secondary shaft 702 transmits power through the transmission bevel gear 703, driving the pulley 704 to rotate. The pulley 704 drives the pulley 708 to rotate via the belt 709, which in turn drives the stirring shaft 706 to rotate. The stirring shaft 706 drives the stirring disc 707 to rotate inside the powder tank 705, thoroughly mixing the solid powder and liquid medicine. The liquid delivery pipe 710 continuously supplies the medicine. As the mixing continues, the solid powder in the powder tank 705 gradually merges with the liquid medicine to form a uniform solution. During this process, because the regulating valve 712 is in the closed state, the mixed medicine does not immediately flow back to the delivery pipe 518, but temporarily accumulates in the powder tank 705, ensuring sufficient time for thorough mixing. Under pressure, the uniformly mixed medicine in the powder tank 705 flows back to the delivery pipe 518 through the return pipe 711, re-merging with the original liquid medicine in the delivery pipe 518, achieving uniform mixing of liquid and powder. This allows the operator to achieve the best treatment effect according to the actual treatment needs.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A medical care sprayer, comprising a housing (1), characterized in that: A handle (2) is fixedly connected to the circumferential surface of the housing (1), a switch (3) is provided on the side of the handle (2), a fixing tube (4) is fixedly connected to the circumferential surface of the housing (1), a negative pressure pulse piston drug delivery device (5) is provided on the inner wall of the housing (1), a pressure rotation drug delivery device (6) is provided on the inner wall of the housing (1), and a powder uniform fusion device (7) is provided on the circumferential surface of the housing (1). The negative pressure pulse piston drug delivery device (5) includes a drug delivery bottle (501), which is threaded to the inner wall of a fixed tube (4). A negative pressure upward piston (502) is slidably connected to the inner wall of the drug delivery bottle (501). A reset handle (517) is fixedly connected to the bottom of the negative pressure upward piston (502). An infusion tube (503) is fixedly connected to the top of the inner side of the fixed tube (4). An installation sleeve (504) is fixedly connected to the inner wall of the housing (1). A motor (505) is fixedly connected to the inner wall of the installation sleeve (504). An active bevel gear (506) is fixedly connected to the output shaft of the motor (505). A transmission plate (507) is fixedly connected to the inner wall of the housing (1). The side of the transmission plate (507) is through and rotatably connected to... There is a rotating shaft (508), and a driven bevel gear (509) is fixedly connected to the circumferential surface of the rotating shaft (508). A cam (510) is fixedly connected to one end of the rotating shaft (508). A connecting rod (511) is hinged to the side of the cam (510). A power piston (512) is hinged to the end of the connecting rod (511) away from the cam (510). A partition plate (513) is fixedly connected to the inner wall of the housing (1). A cylinder (514) is fixedly connected through the side of the partition plate (513). A pulse liquid outlet pipe (515) is fixedly connected through the side of the cylinder (514). A delivery pipe (518) is fixedly connected and passes through the circumferential surface of the pulse liquid outlet pipe (515). A heat dissipation groove (516) is opened on the circumferential surface of the housing (1).

2. The medical care sprayer according to claim 1, characterized in that: The circumferential surface of the power piston (512) is slidably connected to the inner wall of the cylinder (514), the driving bevel gear (506) and the driven bevel gear (509) mesh with each other, and the interior of the heat dissipation groove (516) penetrates the interior of the fixed tube (4).

3. A medical care sprayer according to claim 2, characterized in that: The transmission plate (507), cam (510), connecting rod (511) and power piston (512) are arranged in two sets and are symmetrical to each other along the vertical central axis of the motor (505). The end of the infusion tube (503) away from the fixed tube (4) is fixedly inserted through the side of the two cylinders (514).

4. A medical care sprayer according to claim 3, characterized in that: The infusion tube (503) is equipped with a one-way valve, and the pulse outlet tube (515) is equipped with a one-way valve. The one-way valve inside the infusion tube (503) is unidirectional from the drug bottle (501) to the cylinder (514), and the one-way valve inside the pulse outlet tube (515) is unidirectional from the cylinder (514) to the delivery tube (518). There are two sets of one-way valves.

5. A medical care sprayer according to claim 4, characterized in that: The pressure rotary delivery device (6) includes a front partition (601), which is fixedly connected to the inner wall of the housing (1). A rear dispensing sleeve (602) is fixedly connected through the side of the front partition (601). A sealing rotary sleeve (603) is rotatably connected to one end of the rear dispensing sleeve (602) away from the front partition (601). A fan blade (604) is fixedly connected to the circumferential surface of the sealing rotary sleeve (603). An impact blade (605) is fixedly connected to the inner wall of the rear liquid distribution sleeve (602). A guide hole (606) is opened on the inner wall of the housing (1). A connecting column (607) is fixedly connected to the inner wall of the housing (1). A front connecting sleeve (608) is fixedly connected to the end of the connecting column (607) away from the housing (1). A water mist nozzle (609) is threaded on the circumferential surface of the front connecting sleeve (608). A return air port (610) is opened on the circumferential surface of the housing (1).

6. A medical care sprayer according to claim 5, characterized in that: The end of the rear liquid distribution sleeve (602) away from the sealing rotating sleeve (603) is fixedly connected to the end of the delivery pipe (518) away from the pulse outlet pipe (515). The vertical central axis of the guide hole (606) is perpendicular to the side of the impact blade (605). The number of guide holes (606) is set to twice the number of impact blades (605).

7. A medical care sprayer according to claim 6, characterized in that: The return air inlet (610) is located behind the fan blades (604), and the number of fan blades (604) is set to six, arranged in a ring array along the central axis of the sealing rotating sleeve (603).

8. A medical care sprayer according to claim 7, characterized in that: The powder uniform blending device (7) includes a secondary transmission plate (701), which is fixedly connected to the side of the transmission plate (507). A secondary shaft (702) is rotatably connected through the top of the secondary transmission plate (701). A transmission bevel gear (703) is fixedly connected to one end of the secondary shaft (702), and a pulley (704) is fixedly connected to the other end of the secondary shaft (702) away from the transmission bevel gear (703). A powder container (705) is fixedly connected to the circumferential surface of the housing (1). The bottom of the powder container (705) is... A stirring shaft (706) is rotatably connected through the part. One end of the stirring shaft (706) is fixedly connected to a stirring plate (707). The end of the stirring shaft (706) away from the stirring plate (707) is fixedly connected to a pulley (708). A belt (709) is provided on the circumferential surface of the pulley (708). A liquid delivery pipe (710) is fixedly connected through the circumferential surface of the conveying pipe (518). A return pipe (711) is provided on the circumferential surface of the conveying pipe (518). A regulating valve (712) is provided on the circumferential surface of the conveying pipe (518).

9. A medical care sprayer according to claim 8, characterized in that: The liquid delivery pipe (710) is equipped with a pressure sequence valve inside. The regulating valve (712) is connected to the inside of the delivery pipe (518). One end of the return pipe (711) is located at the front end of the regulating valve (712), and one end of the liquid delivery pipe (710) is located at the rear end of the regulating valve (712).

10. A medical care sprayer according to claim 9, characterized in that: The first pulley (704) and the second pulley (708) are connected by a belt (709). The circumferential surfaces of the liquid delivery pipe (710) and the liquid return pipe (711) are fixedly connected to the partition plate (513).

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