High-precision light-proof infusion apparatus

Abstract

The high-precision light-proof infusion apparatus comprises an infusion apparatus body and an indwelling needle, the indwelling needle is connected to the infusion apparatus body through a hose, a bandage is arranged on the infusion apparatus body, the infusion apparatus body comprises a light-proof shell and a medicine squeezing mechanism, a liquid medicine cavity is formed in the light-proof shell, and the medicine squeezing mechanism is arranged in the liquid medicine cavity. The medicine squeezing mechanism is located in the medicine liquid cavity and used for squeezing medicine liquid into the hose. The infusion apparatus is fixed to the arm or the back of the hand through the bandage, extrusion force is provided for liquid medicine in the liquid medicine cavity through the medicine extrusion mechanism, so that conveying of the liquid medicine is achieved, due to the fact that power is constant, the infusion speed cannot be changed due to movement or vibration, infusion precision is guaranteed, and the infusion apparatus is suitable for being used outdoors and in daily life; and the light shielding shell can improve the light shielding effect, and is suitable for light-sensitive drug delivery.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a high-precision light-proof infusion device. Background Art

[0002] In the modern medical system, the infusion system is the most commonly used means of drug injection. With the continuous advancement of medical technology, the emergence of infusion sets has greatly facilitated the continuous and slow injection of drugs.

[0003] Chronic conditions such as chronic respiratory infections (e.g., bronchiectasis with infection), complicated urinary tract infections (UCIs) requiring long-term antimicrobial therapy, and deep fungal infections (e.g., invasive aspergillosis and cryptococcal meningitis) require regular injections to maintain body function. Furthermore, medications used to treat these conditions must be protected from light. For example, drugs such as levofloxacin, ciprofloxacin, moxifloxacin, and amphotericin B require light exposure, which can easily decompose the drug, potentially leading to decreased efficacy, the production of toxins, or allergic reactions.

[0004] Traditional light-shielding infusion sets, which mostly come in dark, light-shielding bags, offer limited light-shielding effectiveness and are unsuitable for use outdoors in sunlight. Existing infusion sets are also bulky and difficult to carry, requiring patients to remain indoors for extended periods. Even when taken outdoors, movement can affect the infusion's effectiveness, causing it to fluctuate, severely impacting patients' lives and treatment outcomes.

[0005] Therefore, a high-precision light-proof infusion device is needed to solve the above problems. Summary of the Invention

[0006] In order to address the deficiencies of the prior art, the present application provides an indwelling needle infusion system that can store several different liquid medicines and set different infusion rates for infusion.

[0007] The technical effects to be achieved by this application are achieved through the following solutions: According to the first aspect of the present application, a high-precision light-proof infusion pump is provided, comprising an infusion pump and an indwelling needle, wherein the indwelling needle is connected to the infusion pump via a hose, and a strap is provided on the infusion pump. The infusion pump comprises a light-shielding shell and a medicine squeezing mechanism, wherein a medicine liquid cavity is provided in the light-shielding shell, and the medicine squeezing mechanism is located in the medicine liquid cavity and is used to squeeze the medicine liquid into the hose.

[0008] Through this solution, the infusion pump is fixed to the arm or the back of the hand using a strap, and the medicine squeezing mechanism is used to provide squeezing force on the medicine in the medicine cavity, thereby realizing the delivery of the medicine. Since the power is constant, the infusion speed will not change due to movement or vibration, thereby ensuring the accuracy of infusion, which is suitable for use outdoors and in daily life; and the light-shielding shell can improve the light-shielding effect, which is suitable for the delivery of light-sensitive drugs.

[0009] Preferably, a medicine liquid bag is provided in the medicine liquid cavity, the medicine liquid bag is connected to the hose via a drainage pipe, and a medicine adding port is provided on the drainage pipe; the squeezing mechanism squeezes the medicine liquid bag.

[0010] Through this solution, the liquid medicine bag can be isolated from the outside world and maintained in a sealed state, and it is convenient to squeeze the infusion and add medicine; the liquid medicine bag can be made of dark material to further improve the light-shielding effect.

[0011] Preferably, the medicine squeezing mechanism includes a winding roller and a driver, and the driver drives the winding roller to reel in the medicine bag, and the winding direction of the winding roller is toward the discharge pipe.

[0012] Through this solution, the driver drives the winding roller to rotate, thereby winding up the medicine bag, thereby squeezing the medicine to be discharged through the discharge tube. Controlling the speed of the winding roller can ensure a constant infusion speed and improve the infusion accuracy. Moreover, this type of extrusion will not be affected by vibration, movement, etc.

[0013] Preferably, the driver includes a screw and a power mechanism. The screw is arranged along the axial direction of the light-shielding shell and is rotationally linked to the inner wall of the light-shielding shell. A driving gear is fixed on the screw. The driving gear and the screw are engaged with a worm gear structure.

[0014] Through this solution, the worm gear is used for transmission, which can further improve the infusion accuracy. It has high reliability and large torque, and can smoothly roll up the infusion bag, and the roll-up is tighter, ensuring that the medicine in the infusion bag is completely discharged.

[0015] Preferably, two sides of the winding roller are rotatably connected with stabilizing blocks, and the stabilizing blocks are slidably connected to two side walls of the light-shielding shell.

[0016] Through this solution, the stabilizing block can ensure the smooth movement of the winding roller, ensure that the winding roller is always perpendicular to the winding direction of the liquid medicine bag, avoid tilting during the winding process, and ensure that the liquid medicine is discharged smoothly.

[0017] Preferably, stabilizing gears are fixed to both ends of the winding roller, and a rack meshing with the stabilizing gear is provided on the light-shielding shell, and the specifications of the stabilizing gear and the driving gear are consistent.

[0018] Through this solution, the stabilizing gear and the driving gear rotate synchronously, ensuring that both ends of the winding roller move and rewind synchronously, thereby ensuring that the rewinding speed on both sides of the liquid medicine bag is consistent, further improving stability and reliability.

[0019] Preferably, the medicine liquid bag is of a U-shaped structure, and the driving gear is fixed to the middle of the screw; a fixing portion is provided at the top end of the medicine liquid bag, and the fixing portion is used to be fixed to a winding roller.

[0020] Through this solution, the forces on both sides of the winding roller are uniform, thereby ensuring a uniform winding speed and avoiding excessive winding pressure on one side and severe wear. This structure can improve the stability and service life of the equipment.

[0021] Preferably, a sliding groove is provided on the light-shielding shell, a pointer is slidably connected in the sliding groove, and the bottom of the pointer extends into the light-shielding shell and is threadedly connected to the screw.

[0022] With this solution, when the screw rotates and drives the driving gear to move, the pointer is driven to move synchronously, thereby being able to display the current amount of medicine.

[0023] Preferably, the power mechanism is a clockwork drive mechanism.

[0024] Through this solution, a passive spring drive can be utilized to avoid being unable to use the device during long outdoor activities without batteries or charging equipment, thereby improving the applicability of the device.

[0025] Preferably, an adjustment mechanism is also included, which includes a fixing cap and an adjustment cap. The fixing cap is fixed to the bottom of the light-shielding shell and is used to fix the hose. The adjustment cap is rotatably connected to the outside of the fixing cap, and a crescent-shaped extrusion portion is provided on the inner wall of the adjustment cap. The adjustment cap rotates so that different parts of the extrusion portion squeeze the hose to adjust the inner diameter of the hose.

[0026] Through this solution, the flow rate of the hose can be adjusted by rotating the adjustment mechanism, thereby improving the flow rate stability and infusion accuracy during the spring drive process.

[0027] According to one embodiment of the present application, the beneficial effect of using the high-precision light-proof infusion device of the present application is that it is easy to carry. Compared with gravity infusion, it adopts an extrusion method to deliver the liquid medicine, and can be used outdoors or during exercise. The infusion accuracy will not be affected by bumps or movement; it adopts a clockwork drive mechanism and is not limited by power supply, which is further suitable for use in outdoor situations; and the device adopts a light-shielding shell, which can improve the reliability during the infusion process and is suitable for light-sensitive liquid medicines, greatly improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the existing technical solutions, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is a structural diagram of a high-precision light-shielding infusion device in one embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the top view of the infusion set; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the infusion set; Figure 4 for Figure 3 Schematic diagram of the structure of the middle screw and winding roller; Figure 5 Schematic diagram of the structure of the liquid medicine bag; Figure 6 for Figure 5 Schematic diagram of the structure of the Chinese medicine liquid bag in the medicine liquid cavity; Figure 7 for Figure 3 Schematic diagram of the structure of the middle adjustment mechanism; Figure 8 for Figure 7 Schematic diagram of the top view of the middle adjustment cap. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] like Figures 1 to 8 As shown, a high-precision light-proof infusion set in one embodiment of the present application includes an infusion set 10 and an indwelling needle 30. The indwelling needle 30 is connected to the infusion set 10 through a hose 20. A strap 102 is provided on the infusion set 10. The infusion set 10 includes a light-shielding shell 100 and a medicine squeezing mechanism. A medicine liquid cavity 101 is provided in the light-shielding shell 100. The medicine squeezing mechanism is located in the medicine liquid cavity 101 and is used to squeeze the medicine liquid into the hose 20.

[0032] Through the scheme of this embodiment, the infusion device 10 is fixed to the arm or the back of the hand using the strap 102, and the medicine squeezing mechanism is used to provide squeezing force on the medicine in the medicine cavity 101, thereby realizing the delivery of the medicine. Since the power is constant, the infusion speed will not change due to movement or vibration, thereby ensuring the accuracy of infusion, and it is suitable for use outdoors and in daily life; and the light-shielding shell 100 can improve the light-shielding effect, which is suitable for the delivery of light-sensitive drugs.

[0033] In order to facilitate the fixation of the infusion pump 10, straps 102 are provided at both ends of the infusion pump 10. The straps 102 can be made of nylon belts or elastic woven materials and can be tied and fixed to the arms or legs. In order to improve comfort, the infusion pump 10 is set to be arc-shaped to fit the curvature of the body surface.

[0034] In one embodiment of the present application, a liquid medicine bag 110 is disposed within the liquid medicine chamber 101. This bag is connected to a flexible tube via a drainage tube 112, which is provided with a dosing port 113. As the liquid medicine is drained, the bag 110 deflates, preventing air from entering and ensuring complete drainage of the liquid medicine. The bag 110 can be made of a dark material to further shield the patient from light.

[0035] The drug bag 110 is made of medical silicone or plastic, exhibiting a certain degree of elasticity. Once filled, it adheres tightly to the inner wall of the drug chamber 101, increasing its capacity. A plug is provided over the drug inlet 113, which seals it when not in use. To add medication, the syringe is aligned with the inlet 113 and pressure is applied to inject the drug into the bag 110. Since the drug pump is in the off position, the drug is confined to the bag 110 and does not spill out.

[0036] In one embodiment of the present application, the medicine squeezing mechanism includes a reel 120 and a driver. The driver drives the reel 120 to reel in the medicine bag 110, with the reel 120 reeling in the direction of the discharge tube 112. The driver drives the reel 120 to rotate, thereby reeling in the medicine bag 110, thereby squeezing the medicine out through the discharge tube 112. Controlling the speed of the reel 120 ensures a constant infusion rate, improving infusion accuracy, and this method of squeezing is not affected by vibration, movement, etc.

[0037] In one embodiment of the present application, the driver includes a screw 131 and a power mechanism 132. The screw 131 is arranged axially along the light shielding housing 100 and is rotatably connected to the inner wall of the light shielding housing 100. A drive gear 121 is fixed to the screw 131, and the drive gear 121 and the screw 131 engage in a worm gear structure. The use of a worm gear transmission can further improve infusion accuracy, and has high reliability and high torque, which can smoothly and tightly reel the infusion bag, ensuring that the liquid in the infusion bag is completely drained.

[0038] The power mechanism 132 can be active or passive. For example, a battery can be used to power a motor, which drives the screw 131. The control mechanism can control the speed of the motor and thus the winding speed. A pressure sensor can be provided on the discharge pipe 112 to receive the pressure signal of the liquid medicine and feed it back to the control mechanism. The control mechanism controls the speed or start and stop of the motor to ensure stable delivery of the liquid medicine. The motor can be, for example, a stepping motor, which can provide a precise rotation angle. An example of a passive mechanism is a spring drive mechanism, such as that found in clocks and watches. This mechanism includes a mainspring and a gear train. The mainspring is a coiled spring that stores mechanical energy, accumulating elastic potential energy through winding (winding). The gear train converts the energy released by the spring into rotational motion, driving screw 131. Spring drive mechanisms require no external power source and are suitable for use in harsh environments, such as outdoor environments. They are also easy to use, with a relatively gentle and uniform power output, making them suitable for high-precision infusions.

[0039] In one embodiment of the present application, stabilizing blocks 122 are rotatably connected to both sides of the winding roller 120. The stabilizing blocks 122 are slidably connected to the side walls of the light shielding housing 100. The stabilizing blocks 122 ensure smooth movement of the winding roller 120, ensuring that the winding roller 120 is always perpendicular to the winding direction of the liquid medicine bag 110, preventing it from tilting during the winding process and ensuring smooth discharge of the liquid medicine.

[0040] Sliding grooves are provided on both sides of the light shielding housing 100 , and the stabilizing block 122 is slidably connected to the sliding grooves. The winding roller 120 is connected to the stabilizing block 122 via a micro bearing.

[0041] In one embodiment of the present application, stabilizing gears 123 are fixed to both ends of the winding roller 120. A rack is provided on the light shielding housing 100 that meshes with the stabilizing gears 123. The stabilizing gears 123 and the drive gear 121 have the same specifications. Stabilizing gears 123 rotate synchronously with the drive gear 121, ensuring that both ends of the winding roller 120 move and rewind synchronously. Together with the stabilizing block 122, they ensure consistent rewinding speeds on both sides of the drug solution bag 110, further improving stability and reliability.

[0042] In one embodiment of the present application, the drug bag 110 has a U-shaped structure, with a drive gear 121 fixed to the center of the screw 131. A fixing portion 111 is provided at the top of the drug bag 110 for securing it to the winding roller 120. This ensures uniform force on both sides of the winding roller 120, thereby ensuring a consistent winding speed and preventing excessive winding pressure on one side, which could lead to severe wear. This structure can improve the stability and service life of the device.

[0043] In one embodiment of the present application, a slide groove 104 is provided on the light shielding housing 100. A pointer 132 is slidably connected to the slide groove 104. The bottom of the pointer 132 extends into the light shielding housing 100 and is threadedly connected to the screw 131. When the screw 131 rotates and drives the drive gear 121 to move, the pointer 132 moves synchronously, thereby displaying the current dosage.

[0044] The chute 104 is a through-groove, one end of the pointer 132 extends out of the chute 104, and a scale is set on the outside of the chute 104 to facilitate observation of the current amount of medicine; the bottom of the pointer 132 is penetrated by the screw 131 and threadedly connected. Since the angle of the pointer 132 is limited by the chute 104, it can be driven by the rotation of the screw 131. The rotation of the screw 131 simultaneously drives the pointer 132 and the drive gear 121, thereby ensuring synchronous movement and ensuring that the current winding progress is reflected at all times.

[0045] In one embodiment of the present application, the power mechanism 132 is a clockwork drive mechanism. A passive clockwork drive can be used to avoid being unable to use the device without batteries or charging equipment during long outdoor activities, thereby increasing the applicability of the device.

[0046] This embodiment also includes an adjustment mechanism 140, which includes a fixing cap 141 and an adjustment cap 142. The fixing cap 141 is fixed to the bottom of the light-shielding housing 100 and is used to fix the hose 20. The adjustment cap 142 is rotatably connected to the exterior of the fixing cap 141. The inner wall of the adjustment cap 142 is provided with a crescent-shaped extrusion portion 143. The adjustment cap 142 rotates to cause different parts of the extrusion portion 143 to squeeze the hose 20, thereby adjusting the inner diameter of the hose 20. Rotating the adjustment mechanism 140 can adjust the flow rate through the hose 20, thereby improving the flow rate stability and infusion accuracy during the spring drive process.

[0047] The crescent-shaped squeezing portion 143 can squeeze the hose 20 to different degrees at different locations, thereby achieving different opening areas of the hose 20 and thus achieving an adjustment function.

[0048] One side of the fixing cap 141 is open toward the extrusion portion 143 , which can fix the hose 20 during the extrusion process of the extrusion portion 143 to facilitate extrusion; and there is a slot on the fixing cap 141 to allow the extrusion portion 143 to pass through to avoid interference with the extrusion portion 143 .

[0049] When using the device, first inject different liquid medicines into different liquid medicine bags 110 through the medicine adding port 113, then tie the device to the arm, insert the indwelling needle 30 into the back of the hand or arm, and then fix the hose 20; The power mechanism 132 is turned on, or the mainspring is turned to store energy, which drives the screw 131 to rotate, thereby reeling in the liquid medicine bag 110 to squeeze the liquid medicine into the hose 20 for infusion.

[0050] After the infusion is completed, the power mechanism 132 is controlled to rotate in the reverse direction, or the knob of the spring drive mechanism is turned in the reverse direction, so that the screw 131 rotates in the reverse direction to drive the winding roller 120 to reset, and the liquid medicine bag 110 is stretched out to wait for the next dosing and infusion.

[0051] According to one embodiment of the present application, the beneficial effect of using the high-precision light-proof infusion device of the present application is that it is easy to carry. Compared with gravity infusion, it adopts an extrusion method to deliver the liquid medicine, and can be used outdoors or during exercise. The infusion accuracy will not be affected by bumps or movement; it adopts a clockwork drive mechanism and is not limited by power supply, which is further suitable for use in outdoor situations; and the device adopts a light-shielding shell, which can improve the reliability during the infusion process and is suitable for light-sensitive liquid medicines, greatly improving the scope of application.

[0052] It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0053] It should be noted that the terms used herein are intended only to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0055] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product, or apparatus.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0057] In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless the context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-precision light-proof infusion set, comprising an infusion set and an indwelling needle, wherein the indwelling needle is connected to the infusion set via a hose, and a binding strap is provided on the infusion set, characterized in that: The infusion device comprises a light-shielding shell and a medicine squeezing mechanism. A medicine liquid cavity is provided in the light-shielding shell. The medicine squeezing mechanism is located in the medicine liquid cavity and is used for squeezing the medicine liquid into the soft tube.

2. The high-precision light-proof infusion set according to claim 1, characterized in that: A medicine liquid bag is provided in the medicine liquid cavity, and the medicine liquid bag is connected to the hose through a drainage pipe, and a medicine adding port is provided on the drainage pipe; the squeezing mechanism squeezes the medicine liquid bag.

3. The high-precision light-proof infusion device according to claim 2, characterized in that: The medicine squeezing mechanism includes a winding roller and a driver. The driver drives the winding roller to rewind the medicine bag. The winding direction of the winding roller is toward the discharge pipe.

4. The high-precision light-proof infusion device according to claim 3, characterized in that: The driver includes a screw and a power mechanism. The screw is arranged along the axial direction of the light-shielding shell and is rotationally linked to the inner wall of the light-shielding shell. A driving gear is fixed on the screw. The driving gear and the screw are engaged with a worm gear structure.

5. The high-precision light-proof infusion device according to claim 4, characterized in that: Both sides of the winding roller are rotatably connected with stabilizing blocks, and the stabilizing blocks are slidably connected to both side walls of the light-shielding shell.

6. The high-precision light-proof infusion device according to claim 5, characterized in that: Stabilizing gears are fixed to both ends of the winding roller, and a rack meshing with the stabilizing gear is provided on the light-shielding shell. The specifications of the stabilizing gear and the driving gear are consistent.

7. The high-precision light-proof infusion device according to claim 4, characterized in that: The medicine liquid bag is of U-shaped structure, and the driving gear is fixed to the middle of the screw; a fixing portion is provided at the top end of the medicine liquid bag, and the fixing portion is used to be fixed to the winding roller.

8. The high-precision light-proof infusion set according to claim 4, characterized in that: A sliding groove is provided on the light-shielding shell, a pointer is slidably connected in the sliding groove, and the bottom of the pointer extends into the light-shielding shell and is threadedly connected to the screw.

9. The high-precision light-proof infusion device according to claim 4, characterized in that: The power mechanism is a clockwork drive mechanism.

10. The high-precision light-proof infusion device according to claim 1, characterized in that: It also includes an adjustment mechanism, which includes a fixing cap and an adjustment cap. The fixing cap is fixed to the bottom of the light-shielding shell and is used to fix the hose. The adjustment cap is rotatably connected to the outside of the fixing cap, and a crescent-shaped extrusion portion is provided on the inner wall of the adjustment cap. The adjustment cap rotates so that different parts of the extrusion portion squeeze the hose to adjust the inner diameter of the hose.

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