Liquid quantity quantitative regulation and control device for transfusion

Abstract

The invention provides an infusion liquid quantity quantitative regulation and control device which comprises an upper drip chamber with the bottom end connected with a lower drip chamber, a rotating combination part is arranged at the connecting position of the upper drip chamber and the lower drip chamber, the upper drip chamber abuts against and is attached to the upper drip chamber through the rotating combination part and is in sliding connection with the upper drip chamber, and a drip liquid partition plate is arranged on the upper portion of the inner side of the lower drip chamber. A plurality of groups of liquid control supporting frames are annularly arranged in the liquid dropping partition plate, each liquid control supporting frame is divided into a left area and a right area, sealed lifting cylinders which are in sealed sliding connection are arranged on the inner sides of the liquid control supporting frames, and a liquid amount precise control part is arranged in the sealed lifting cylinder on one side; the flow rate of infusion is adjusted and fixed to be the internal flow rate of the sealed lifting cylinder, so that control over various flow rates is achieved, and the flow rate of infusion can be more accurately controlled to achieve timed and quantitative infusion regulation and control through the arrangement of the precise liquid amount control piece in the sealed lifting cylinder.

Description

Technical Field

[0001] The present invention relates to the field of liquid volume regulation for infusion, and more specifically, to a device for quantitatively regulating the liquid volume for infusion. Background Art

[0002] The device for quantitatively regulating the liquid volume for infusion is a medical device used to precisely control the liquid infusion volume and speed during the infusion process. It is widely used in clinical treatment, especially in scenarios where strict control of the infusion volume is required. During clinical use, patients with cardiovascular diseases or neonatal patients are unable to withstand the lowest infusion speed with their own blood vessels during the infusion process. It is necessary to precisely control the infusion for the patient according to the actual infusion volume received by the patient. Moreover, when infusing a fixed type of medicine, it is necessary to infuse the patient for a fixed period of time to ensure the medicinal value of the medicine.

[0003] The device for quantitatively regulating the liquid volume for infusion usually completes the delivery of a fixed amount of liquid medicine by mechanically peristaltically squeezing. Professional equipment is required during the process. When large-scale unified use is needed, the equipment cost is high, and professional personnel are required to operate it during use, making it difficult to quickly and easily get started.

[0004] Therefore, we make improvements in this regard and propose a device for quantitatively regulating the liquid volume for infusion. Summary of the Invention

[0005] The purpose of the present invention is to address the problems that currently existing devices for quantitatively regulating the infusion volume are costly, cannot be equipped on a large scale, require professional personnel to operate, and are difficult to quickly get started.

[0006] To achieve the above-mentioned invention purpose, the present invention provides a device for quantitatively regulating the liquid volume for infusion to improve the above problems.

[0007] Specifically, this application is as follows: A device for quantitatively regulating the liquid volume for infusion, comprising: An upper drip funnel with a lower drip funnel connected to its bottom end. A rotary combination part is provided at the connection position between the upper drip funnel and the lower drip funnel. The upper drip funnel is in abutting contact with and slidably connected to the upper drip funnel through the rotary combination part. An infusion separation plate is provided in the upper part inside the lower drip funnel. A plurality of liquid control support frames are annularly arranged inside the infusion separation plate. The liquid control support frames are divided into left and right areas. A sealed lifting cylinder is provided inside the liquid control support frame in a sealed and slidable connection. A liquid volume fine control piece is provided inside one of the sealed lifting cylinders; When the lower drip funnel rotates and contacts the upper drip funnel, it triggers the downward movement of the sealed lifting cylinder. The downward movement of the sealed lifting cylinder synchronously triggers the opening of the liquid volume fine control piece. After the downward movement of the sealed lifting cylinder and the triggering of the liquid volume fine control piece, the upper drip funnel and the lower drip funnel are communicated.

[0008] As a preferred technical solution of the present application, a liquid inlet connecting pipe is provided at the center of the top end of the upper drip hopper. Both ends of the liquid inlet connecting pipe communicate with the inner and outer sides of the upper drip hopper respectively. One side of the inner bottom of the upper drip hopper is connected with a liquid dripping trigger rod, and the bottom end of the liquid dripping trigger rod abuts against the sealed lifting cylinder. An external thread sleeve is provided at the position where the bottom end of the upper drip hopper is connected to the lower drip hopper.

[0009] As a preferred technical solution of the present application, a liquid outlet connecting pipe is provided at the bottom end of the lower drip hopper. Both the upper and lower ends of the liquid outlet connecting pipe communicate with the inner and outer sides of the lower drip hopper respectively. The inner top of the lower drip hopper is connected with positioning blocks distributed in a ring shape. The connection position between the positioning blocks and the inner wall of the lower drip hopper corresponds to the liquid control support frame. One end of the positioning block away from the lower drip hopper is connected with a positioning claw. The liquid dripping trigger rod is slidably buckled inside the positioning claw. A combined snap ring is provided at the position where the top end of the lower drip hopper is connected to the upper drip hopper. A sliding steel ring is embedded in the inner wall of the bottom surface of the combined snap ring. The outer wall of the lower drip hopper is provided with a regulation indication mark corresponding to the distribution of the liquid control support frame.

[0010] As a preferred technical solution of the present application, the rotary combination part includes a threaded cap threadedly sleeved on the outer sides of the combined snap ring and the external thread sleeve. An embedded top groove is provided on the inner wall of the top of the threaded cap. The inner wall of the embedded top groove fits on the outer sides of the sliding steel ring and the external thread sleeve. Anti-slip grooves are provided on the outer wall of the threaded cap in an annular and equally spaced distribution.

[0011] As a preferred technical solution of the present application, a rubber sealing block is attached to the bottom surface of the external thread sleeve and the top surface of the combined snap ring. A bonding groove is provided on the fitting surface of the rubber sealing block. A sealing steel ring is embedded and bonded inside the bonding groove. The sealing steel rings are in sliding sealing connection by fitting.

[0012] As a preferred technical solution of the present application, the upper side of the liquid dripping partition plate is partitioned into an upper liquid accumulation chamber, and the lower side of the liquid dripping partition plate is partitioned into a lower liquid accumulation cavity. A drip hopper communication hole is provided on the surface of the liquid dripping partition plate at the position where the liquid control support frame is connected. The drip hopper communication hole communicates the upper drip hopper and the inside of the lower drip hopper.

[0013] As a preferred technical solution of the present application, the liquid control support frame includes a cylinder frame. The cylinder frame is fixedly connected to the outer side of the top surface of the drip hopper communication hole. The bottom end of the cylinder frame is provided with liquid inlet ports distributed in a ring shape. A transmission port is provided at the center of the top surface of the cylinder frame.

[0014] As a preferred technical solution of the present application, the sealed lifting cylinder includes a transport pipe, the outer wall of the transport pipe is hermetically and slidably attached to the inner walls of the liquid control support frame and the drip funnel communication hole, the outer wall of the top end of the transport pipe is provided with communication ports distributed in a ring shape, the communication ports are communicated with the cylinder frame, the top end of the transport pipe is fixedly connected with a trigger hemisphere and a medium-sized trigger ball respectively, the trigger hemisphere and the medium-sized trigger ball extend to the outside of the transmission port, and a curved trigger piece is fixedly connected to one side of the drip separation plate top surface located on the liquid control support frame side, and one end of the curved trigger piece extends to the top surfaces of the trigger hemisphere and the medium-sized trigger ball.

[0015] As a preferred technical solution of the present application, the liquid volume fine control member includes an elastic plate fixedly connected to one side of the bottom end of the drip funnel communication hole, one end of the elastic plate is fixedly connected to the bottom surface of the drip separation plate, the other end of the elastic plate extends to the center of the drip funnel communication hole, a pull rod is connected to the end of the elastic plate below the drip funnel communication hole, the top end of the pull rod extends to the bottom surfaces of the trigger hemisphere and the medium-sized trigger ball, a transmission strip distributed in a ring shape is connected to the top end of the pull rod, the other end of the transmission strip obliquely penetrates into the lower part inside the communication port, a positioning suspension rod distributed in a ring shape is connected to one side of the bottom surfaces of the trigger hemisphere and the medium-sized trigger ball close to the communication port, the bottom end of the positioning suspension rod is fixedly connected to the transmission strip, a thorn needle is connected to the end of the transmission strip far from the pull rod, and the downward movement of the pull rod drives the transmission strip to extend and push the thorn needle to penetrate into the cylinder frame.

[0016] As a preferred technical solution of the present application, a liquid volume blocking plate is fixedly connected to the middle part of the transport pipe, a liquid flow hole is opened at the center of the liquid volume blocking plate, a sealing plate is hermetically and slidably connected to the center of the liquid flow hole, the pull rod penetrates inside the liquid flow hole, the pull rod is fixedly connected to the outer wall of the pull rod, a weight ring is fixedly connected to the outside of the top surface of the pull rod, and weight holes are opened in the outer wall of the weight ring at equal intervals in a ring shape, the top of the weight holes is communicated with the upper liquid storage bin, and the bottom of the weight holes is communicated with the inside of the lower liquid accumulation cavity.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the solution of the present application: through the settings of the liquid control support frames on both sides of the drip separation plate and the sealed lifting cylinder, when the drip funnel is driven to rotate, the sealed lifting cylinder can be opened by using the drip trigger rod, and the infusion flow rate is fixed to the internal flow rate of the sealed lifting cylinder, so as to realize the control of multiple flow rates. The setting of the liquid volume fine control member inside the sealed lifting cylinder can more accurately control the flow rate of the infusion flow rate, so that the infusion volume can be accurately controlled to the required infusion time, and the timing and quantitative infusion regulation can be realized.

[0018] 1. The present invention is provided with multiple groups of liquid control support frames on both sides of the drip separation plate, and the liquid control support frames are divided into two sides, so that the liquid control support frames on both sides are divided into a normal flow rate area and a precise control flow rate area. During daily use, the infusion flow rate control for normal use can be achieved according to the three high, medium and low flow rates in the normal flow rate area, while the precise control flow rate area on the other side can meet the requirements of precise control of infusion.

[0019] 2. In the present invention, a liquid volume precise control component is added inside the sealed lifting cylinder in the precise control flow rate area, which can drive the component ring to move downward driven by the drip trigger rod, complete the connection of the component hole to the delivery pipe, and realize the delivery of the liquid volume. At the same time, according to the sizes of the trigger hemisphere and the medium trigger ball, the opening size of the component hole can be precisely adjusted to complete the specified liquid volume delivery speed and complete the delivery of the liquid volume within a fixed time. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of a liquid volume quantitative control device for infusion provided by the present invention; Figure 2 is Figure 1 the structural schematic diagram of the middle part of the upper drip funnel and the lower drip funnel shown in cross-section; Figure 3 is Figure 2 the structural schematic diagram of the upper drip funnel and the lower drip funnel shown in decomposition; Figure 4 is Figure 2 the enlarged structural cross-sectional schematic diagram of the rotating combination part shown in; Figure 5 is Figure 4 the structural decomposition schematic diagram of the rotating combination part shown in; Figure 6 is Figure 2 the structural schematic diagram of the position of the liquid control support frame and the drip separation plate shown in; Figure 7 is Figure 6 the structural schematic diagram of the middle part of the liquid control support frame shown in cross-section; Figure 8 is Figure 7 the structural schematic diagram of the opened state between the sealed lifting cylinder and the liquid control support frame shown in; Figure 9 is Figure 8 the structural schematic diagram of the liquid volume precise control component added inside the sealed lifting cylinder shown in; Figure 10 is Figure 9 the structural decomposition schematic diagram of the position of the liquid volume precise control component shown in.

[0021] Labels in the figure: 1. Upper drip funnel; 11. Liquid inlet connecting pipe; 12. Drip trigger rod; 13. Outer threaded sleeve; 2. Dripping funnel; 21. Liquid outlet connecting pipe; 22. Positioning block; 23. Positioning claw; 24. Combination snap ring; 241. Sliding steel ring; 25. Regulation indicator 3. Rotating combination part; 31. Threaded cap; 311. Embedded top groove; 312. Anti-slip groove 32. Rubber sealing block; 33. Bonding groove; 34. Sealing steel ring 4. Drip separator; 41. Lower liquid accumulation cavity; 42. Upper liquid storage bin; 43. Funnel connecting hole 5. Liquid control support frame; 51. Cylinder frame; 52. Liquid inlet; 53. Transmission port 6. Sealed lifting cylinder; 61. Transport pipe; 62. Connecting port; 63. Trigger hemisphere; 64. Medium trigger ball; 65. Curved trigger piece 7. Liquid volume precision control component; 71. Elastic plate; 72. Pull rod; 73. Transmission bar; 74. Positioning suspension rod; 75. Needle; 76. Liquid volume blocking plate 761. Liquid flow hole; 762. Sealing plate; 763. Component ring; 764. Component hole Detailed implementation manners

[0022] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As described in the background art, the infusion quantitative regulation device has high costs, cannot be equipped on a large scale, and requires professional personnel to operate, making it difficult to get started quickly.

[0024] To solve this technical problem, the present invention provides a liquid volume quantitative regulation device for infusion, which is applied to the quantitative delivery of liquid volume during infusion, is simple to operate and convenient to use, has a variety of flow rate adjustment methods, and has low manufacturing costs and is convenient for large-scale popularization and use.

[0025] Specifically, please refer to Figures 1 - 10 , the liquid volume quantitative regulation device for infusion specifically includes: The upper drip hopper 1 with a lower drip hopper 2 connected to its bottom end. A rotating combination part 3 is provided at the connection position between the upper drip hopper 1 and the lower drip hopper 2. The upper drip hopper 1 is in abutting contact and sliding connection with the upper drip hopper 1 through the rotating combination part 3. An inner upper part of the lower drip hopper 2 is provided with a liquid dripping partition plate 4. Inside the liquid dripping partition plate 4, a plurality of liquid control support frames 5 are annularly arranged. The liquid control support frames 5 are divided into left and right areas. Inside the liquid control support frames 5, there is a sealing lifting cylinder 6 in sealing sliding connection. Inside one of the sealing lifting cylinders 6, there is a liquid volume precision control part 7. When the lower drip hopper 2 rotates and contacts the upper drip hopper 1, it triggers the downward movement of the sealing lifting cylinder 6. The downward movement of the sealing lifting cylinder 6 synchronously triggers the opening of the liquid volume precision control part 7. After the downward movement of the sealing lifting cylinder 6 and the triggering of the liquid volume precision control part 7, the upper drip hopper 1 and the lower drip hopper 2 are communicated.

[0026] A liquid volume quantitative regulation device for infusion provided by the present invention, through the settings of the liquid control support frames 5 on both sides of the liquid dripping partition plate 4 and the sealing lifting cylinder 6, when driving the lower drip hopper 2 to rotate, the sealing lifting cylinder 6 can be opened by using the liquid dripping trigger rod 12. The infusion flow rate is fixed at the internal flow rate of the sealing lifting cylinder 6, so as to realize the control of multiple flow rates. And the setting of the liquid volume precision control part 7 inside the sealing lifting cylinder 6 can more precisely control the flow rate of the infusion, enabling the liquid volume of the infusion to be accurately controlled to the required infusion time, and realizing the timed and quantitative infusion regulation.

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] Embodiment 1 Please refer to Figures 1 - 10 A liquid volume quantitative regulation device for infusion. At the center of the top end of the upper drip hopper 1, there is a liquid inlet connection pipe 11. Both ends of the liquid inlet connection pipe 11 are communicated with the inside and outside of the upper drip hopper 1 respectively. One side of the inner bottom of the upper drip hopper 1 is connected with a liquid dripping trigger rod 12. The bottom end of the liquid dripping trigger rod 12 abuts against the sealing lifting cylinder 6. At the connection position between the bottom end of the upper drip hopper 1 and the lower drip hopper 2, there is an external thread sleeve 13.

[0031] The bottom end of the dropping funnel 2 is provided with a liquid outlet connecting pipe 21. The upper and lower ends of the liquid outlet connecting pipe 21 communicate with the inner and outer sides of the dropping funnel 2. The top of the inner side of the dropping funnel 2 is connected with positioning blocks 22 distributed in a ring shape. The connection position of the positioning blocks 22 and the inner wall of the dropping funnel 2 corresponds to the liquid control support frame 5. One end of the positioning block 22 away from the dropping funnel 2 is connected with a positioning claw 23. The dropping liquid trigger rod 12 is slidably buckled inside the positioning claw 23. At the position where the top end of the dropping funnel 2 is connected to the upper dropping funnel 1, there is a combined snap ring 24. The inner wall of the bottom surface of the combined snap ring 24 is embedded with a sliding steel ring 241. The outer wall of the dropping funnel 2 is provided with a regulation indication mark 25 corresponding to the distribution of the liquid control support frame 5.

[0032] The rotating combination part 3 includes a threaded cap 31 that is threadedly sleeved on the combined snap ring 24 and the outer threaded sleeve 13. The inner wall of the top of the threaded cap 31 is provided with an embedded top groove 311. The inner wall of the embedded top groove 311 is attached to the outer sides of the sliding steel ring 241 and the outer threaded sleeve 13. The outer wall of the threaded cap 31 is provided with anti-slip grooves 312 distributed at equal intervals in a ring shape.

[0033] A rubber sealing block 32 is attached to the bottom surface of the outer threaded sleeve 13 and the top surface of the combined snap ring 24. A bonding groove 33 is provided on the mutually attached surface of the rubber sealing block 32. A sealing steel ring 34 is embedded and bonded inside the bonding groove 33. The sealing steel rings 34 are attached and slidably sealed to each other.

[0034] The upper side of the liquid dropping partition plate 4 is divided into an upper liquid storage chamber 42, and the lower side of the liquid dropping partition plate 4 is divided into a lower liquid cavity 41. A dropping funnel communication hole 43 is provided on the surface of the liquid dropping partition plate 4 at the position where it is connected to the liquid control support frame 5. The dropping funnel communication hole 43 communicates the inside of the upper dropping funnel 1 and the dropping funnel 2.

[0035] The liquid control support frame 5 includes a cylinder frame 51. The cylinder frame 51 is fixedly connected to the outer side of the top surface of the dropping funnel communication hole 43. The bottom end of the cylinder frame 51 is provided with liquid inlet openings 52 distributed in a ring shape. The center of the top surface of the cylinder frame 51 is provided with a transmission opening 53.

[0036] The sealed lifting cylinder 6 includes a transport pipe 61. The outer wall of the transport pipe 61 is hermetically and slidably attached to the inner walls of the liquid control support frame 5 and the dropping funnel communication hole 43. The outer wall of the top end of the transport pipe 61 is provided with communication ports 62 distributed in a ring shape. The communication ports 62 communicate with the cylinder frame 51. The top end of the transport pipe 61 is fixedly connected with a trigger hemisphere 63 and a medium-sized trigger ball 64 respectively. The trigger hemisphere 63 and the medium-sized trigger ball 64 extend to the outside of the transmission opening 53. A curved trigger piece 65 is fixedly connected to one side of the top surface of the liquid dropping partition plate 4 where the liquid control support frame 5 is located. One end of the curved trigger piece 65 extends to the top surfaces of the trigger hemisphere 63 and the medium-sized trigger ball 64.

[0037] A plurality of groups of liquid control support frames 5 are provided on both sides of the drip partition plate 4, and the liquid control support frames 5 are divided into two sides, so that the liquid control support frames 5 on both sides are divided into a normal flow rate zone and a precision control flow rate zone. In daily use, the normal infusion flow rate control can be achieved according to the three groups of high, medium and low flow rates in the normal flow rate zone, while the precision control flow rate zone on the other side can provide the needs of precision control infusion.

[0038] Example 2 The quantitative control device for infusion liquid provided in Example 1 is further optimized. Specifically, Figures 1 - 10 The liquid volume precision control unit 7 includes an elastic plate 71 fixedly connected to one side of the bottom end of the drip bucket connecting hole 43, one end of the elastic plate 71 is fixedly connected to the bottom surface of the dripping partition plate 4, and the other end of the elastic plate 71 extends to the center of the drip bucket connecting hole 43, and the end of the elastic plate 71 located below the drip bucket connecting hole 43 is connected to a pull rod 72, the top of the pull rod 72 extends to the bottom surface of the trigger hemisphere 63 and the middle-shaped trigger ball 64, the top of the pull rod 72 is connected to a ring-shaped transmission bar 73, the other end of the transmission bar 73 is obliquely penetrated below the inside of the connecting port 62, and the bottom surface of the trigger hemisphere 63 and the middle-shaped trigger ball 64 is connected to a ring-shaped positioning suspension rod 74 on one side close to the connecting port 62, the bottom end of the positioning suspension rod 74 is fixedly connected to the transmission bar 73, and the end of the transmission bar 73 away from the pull rod 72 is connected to a thorn needle 75, and the pull rod 72 moves downward to drive the transmission bar 73 to extend and push the thorn needle 75 to penetrate the inside of the cartridge frame 51.

[0039] A liquid volume barrier plate 76 is fixedly connected to the middle part of the transport pipe 61, a liquid volume barrier plate 76 is provided with a liquid flow hole 761 at the center, a sealing plate 762 is sealingly and slidably connected to the center of the liquid flow hole 761, the pull rod 72 is passed through the liquid flow hole 761, the pull rod 72 is fixedly connected to the outer wall of the pull rod 72, a component ring 763 is fixedly connected to the outer side of the top surface of the pull rod 72, the outer wall of the component ring 763 is provided with component holes 764 distributed in a circular shape and at equal intervals, the top of the component hole 764 is connected to the upper liquid storage bin 42, and the bottom of the component hole 764 is connected to the inside of the lower liquid storage chamber 41.

[0040] A liquid volume precision control unit 7 is additionally provided on the inner side of the sealed lifting cylinder 6 inside the precise flow rate control area, and the drip trigger rod 12 can be used to drive the component ring 763 downward, so that the component hole 764 is connected to the transport pipe 61 to realize the liquid delivery. At the same time, the opening size of the component hole 764 can be precisely adjusted according to the size of the trigger hemisphere 63 and the middle trigger ball 64 to achieve the specified liquid delivery speed and the fixed time delivery of the liquid.

[0041] The use process of the infusion liquid quantitative control device provided by the present invention is as follows: During use, connect the liquid inlet connecting pipe 11 and the liquid outlet connecting pipe 21 of the upper and lower drip funnels 2 to the middle of the infusion set. Then connect the medicine solution to be delivered to the patient to the top of the infusion set. After that, squeeze the upper drip funnel 1, and the air inside the upper drip funnel 1 will enter the inside of the medicine solution bottle or medicine solution bag through the infusion tube of the infusion set. Then the medicine solution accumulates inside the upper drip funnel 1.

[0042] At this time, according to the type of infusion required, the lower drip funnel 2 can be rotated so that the bottom end of the drip trigger rod 12 is connected to the specified type of sealing support frame.

[0043] When normal infusion is required for the patient, the lower drip funnel 2 can be rotated to the normal flow rate drive area of the liquid control support frame 5. In the normal flow rate area state, according to the patient's condition, the drip trigger rod 12 can be abutted above the liquid control support frame 5 for rapid infusion, at the position of the communication port 62 for medium-speed infusion or low-speed infusion, so that the medicine solution can be completely adapted to the patient's condition and be delivered at the required infusion flow rate, ensuring the adaptability of the patient's infusion.

[0044] When the patient needs to deliver a fixed liquid volume at a fixed time, the lower drip funnel 2 can be rotated. As the lower drip funnel 2 rotates, the lower drip funnel 2 will drive the liquid control support frame 5 to rotate. As the liquid control support frame 5 rotates, the drip trigger rod 12 will move above the liquid control support frame 5 with the liquid volume fine control member 7. At this time, the drip trigger rod 12 will be abutted above the curved trigger piece 65 and directly above the medium trigger ball 64.

[0045] Press the medium trigger ball 64 downward. The downward movement of the medium trigger ball will drive the transport pipe 61 to move downward. At this time, the bottom end of the transport pipe 61 will press the elastic plate 71 to move downward. When the transport pipe 61 moves downward, the communication port 62 will be connected to the liquid inlet 52, so that the medicine solution inside the upper drip funnel 1 will enter the inside of the transport pipe 61 through the liquid inlet 52 and the communication port 62.

[0046] The downward movement of the elastic plate 71 will pull the pull rod 72 to move downward. The downward movement of the pull rod 72 will drive the transmission bar 73 to move downward. The downward movement of the transmission bar 73 will push the needle 75 at the top of the transmission bar 73 to extend into the liquid inlet 52 and the communication port 62, so that the medicine solution can stably flow into the inside of the transport pipe 61.

[0047] It should be noted that: the setting of the needle 75 can avoid the problem that the medicine solution cannot be delivered due to the closure of the liquid inlet 52 caused by excessive surface tension of the medicine solution due to the too small diameter of the liquid inlet 52. The position where the needle is connected to the transmission bar 73 is connected to the bottom surface of the medium trigger ball through the positioning suspension rod 74, which can ensure that the needle can extend outward when the transmission bar 73 moves downward driven by the pull rod 72. And the positioning suspension rod 74, the pull rod 72 and the transmission bar 73 are all made of silicone material, which has flexibility and can be shaped and deformed.

[0048] When the draw bar 72 moves downward, it will also pull the sealing plate 762 downward, causing the weight ring 763 connected to the top surface of the sealing plate 762 to move downward, so that the weight holes 764 opened on the outer wall of the weight ring 763 penetrate below the liquid flow hole 761, completing the connection between the upper and lower sides of the weight holes 764 and the inside of the upper liquid storage chamber 42 and the lower liquid storage cavity 41, and completing the flow and transportation of the liquid medicine.

[0049] It should be noted that the medium-sized trigger balls 64 used in the three liquid control support frames 5 with the liquid volume fine control device 7 are of different sizes, which can make the weight ring 763 move downward by different distances. Different medium-sized trigger balls 64 can be customized according to actual needs, so as to accurately control the flow rate and flow of the liquid medicine transported downward by the weight ring 763, and realize that the upper drip hopper 1 and the lower drip hopper 2 can be used for proportional transportation of various time liquid volumes.

[0050] It should be noted that the upper drip hopper 1 and the lower drip hopper 2 are connected by a rotating combination part 3, so that the upper and lower drip hoppers 2 are of a split design, which is convenient for production, combination and installation. At the same time, the design of the sealing steel ring 34 inside the rotating combination part 3 can improve the sliding effect when the lower drip hopper 2 rotates.

[0051] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields shall be within the scope of the patent protection of the present invention by the same token.

Claims

1. An infusion liquid volume quantitative regulation device, characterized in that, Including: An upper drip hopper (1) with a lower drip hopper (2) connected to its bottom end. A rotary combination part (3) is provided at the connection position between the upper drip hopper (1) and the lower drip hopper (2). The upper drip hopper (1) is in abutting contact and sliding connection with the upper drip hopper (1) through the rotary combination part (3). Inside the upper part of the lower drip hopper (2), there is a liquid dripping partition plate (4). Inside the liquid dripping partition plate (4), there are multiple groups of liquid control support frames (5) arranged in a ring shape. The liquid control support frames (5) are divided into left and right areas. Inside the liquid control support frames (5), there is a sealed lifting cylinder (6) in sealed sliding connection. Inside one of the sealed lifting cylinders (6), there is a liquid volume fine control part (7); When the lower drip hopper (2) rotates and contacts the upper drip hopper (1), it triggers the downward movement of the sealed lifting cylinder (6). The downward movement of the sealed lifting cylinder (6) synchronously triggers the opening of the liquid volume fine control part (7). After the downward movement of the sealed lifting cylinder (6) and the triggering of the liquid volume fine control part (7), the upper drip hopper (1) and the lower drip hopper (2) are communicated.

2. The liquid volume quantitative regulation device for infusion according to claim 1, wherein At the center of the top end of the upper drip hopper (1), there is a liquid inlet connecting pipe (11). Both ends of the liquid inlet connecting pipe (11) communicate with the inside and outside of the upper drip hopper (1) respectively. On one side of the inner bottom of the upper drip hopper (1), there is a liquid dripping trigger rod (12). The bottom end of the liquid dripping trigger rod (12) abuts against the sealed lifting cylinder (6). At the position where the bottom end of the upper drip hopper (1) is connected to the lower drip hopper (2), there is an external thread sleeve (13).

3. The liquid volume quantitative regulation device for infusion according to claim 2, wherein At the bottom end of the lower drip hopper (2), there is a liquid outlet connecting pipe (21). Both the upper and lower ends of the liquid outlet connecting pipe (21) communicate with the inside and outside of the lower drip hopper (2) respectively. At the inner top of the lower drip hopper (2), there are positioning blocks (22) distributed in a ring shape. The connection position between the positioning blocks (22) and the inner wall of the lower drip hopper (2) corresponds to the liquid control support frames (5). One end of the positioning block (22) away from the lower drip hopper (2) is connected with a positioning claw (23). The liquid dripping trigger rod (12) is slidably clamped inside the positioning claw (23). At the position where the top end of the lower drip hopper (2) is connected to the upper drip hopper (1), there is a combination snap ring (24). Inside the inner wall of the bottom surface of the combination snap ring (24), there is a sliding steel ring (241) embedded. On the outer wall of the lower drip hopper (2), there are regulation indication marks (25) corresponding to the distribution of the liquid control support frames (5).

4. The liquid volume quantitative control device for infusion according to claim 3, characterized in that, The rotary combination part (3) includes a thread cap (31) threadedly sleeved on the outside of the combination snap ring (24) and the external thread sleeve (13). Inside the top inner wall of the thread cap (31), there is an embedded top groove (311). The inner wall of the embedded top groove (311) fits on the outside of the sliding steel ring (241) and the external thread sleeve (13). On the outer wall of the thread cap (31), there are anti-slip grooves (312) distributed at equal intervals in a ring shape.

5. The liquid volume quantitative control device for infusion according to claim 4, characterized in that, A rubber sealing block (32) is attached to the bottom surface of the external thread sleeve (13) and the top surface of the combination snap ring (24). On the mating surfaces of the rubber sealing block (32), there are bonding grooves (33). Inside the bonding grooves (33), there are sealing steel rings (34) embedded. The sealing steel rings (34) are in sliding sealing connection by fitting.

6. The liquid volume quantitative control device for infusion according to claim 1, characterized in that, The upper side of the drip partition plate (4) is partitioned into an upper liquid storage bin (42), and the lower side of the drip partition plate (4) is partitioned into a lower liquid storage cavity (41). A drip hopper communication hole (43) is opened on the surface of the drip partition plate (4) at the position where the liquid control support frame (5) is connected. The drip hopper communication hole (43) communicates the interiors of the upper drip hopper (1) and the lower drip hopper (2).

7. The liquid volume quantitative regulation device for infusion according to claim 6, wherein The liquid control support frame (5) includes a cylinder frame (51). The cylinder frame (51) is fixedly connected to the outer side of the top surface of the drip hopper communication hole (43). An annularly distributed liquid inlet (52) is opened at the bottom end of the cylinder frame (51), and a transmission port (53) is opened at the center of the top surface of the cylinder frame (51).

8. The liquid volume quantitative control device for infusion according to claim 7, characterized in that, The sealed lifting cylinder (6) includes a transport pipe (61). The outer wall of the transport pipe (61) is hermetically and slidably attached to the inner walls of the liquid control support frame (5) and the drip hopper communication hole (43). Annularly distributed communication ports (62) are opened on the outer wall of the top end of the transport pipe (61). The communication ports (62) communicate with the cylinder frame (51). A trigger hemisphere (63) and a middle trigger ball (64) are fixedly connected to the top end of the transport pipe (61) respectively. The trigger hemisphere (63) and the middle trigger ball (64) extend to the outside of the transmission port (53). A curved trigger piece (65) is fixedly connected to one side of the top surface of the drip partition plate (4) where the liquid control support frame (5) is located. One end of the curved trigger piece (65) extends to the top surfaces of the trigger hemisphere (63) and the middle trigger ball (64).

9. The liquid volume quantitative control device for infusion according to claim 8, characterized in that, The liquid volume precision control device (7) includes an elastic plate (71) fixedly connected to one side of the bottom end of the drip hopper communication hole (43). One end of the elastic plate (71) is fixedly connected to the bottom surface of the drip partition plate (4). The other end of the elastic plate (71) extends to the center of the drip hopper communication hole (43). A pull rod (72) is connected to the end of the elastic plate (71) below the drip hopper communication hole (43). The top end of the pull rod (72) extends to the bottom surfaces of the trigger hemisphere (63) and the middle trigger ball (64). A transmission strip (73) distributed in a ring is connected to the top end of the pull rod (72). The other end of the transmission strip (73) obliquely penetrates into the lower part inside the communication port (62). Annularly distributed positioning hanging rods (74) are connected to one side of the bottom surfaces of the trigger hemisphere (63) and the middle trigger ball (64) close to the communication port (62). The bottom ends of the positioning hanging rods (74) are fixedly connected to the transmission strip (73). A thorn needle (75) is connected to the end of the transmission strip (73) away from the pull rod (72). The downward movement of the pull rod (72) drives the transmission strip (73) to extend and push the thorn needle (75) to penetrate into the inside of the cylinder frame (51).

10. The quantitative regulation device for the liquid volume used in infusion according to claim 9, characterized in that, A liquid volume partition plate (76) is fixedly connected to the middle of the transport pipe (61). A liquid flow hole (761) is formed at the center of the liquid volume partition plate (76). A sealing plate (762) is hermetically and slidably connected to the center of the liquid flow hole (761). The pull rod (72) is arranged inside the liquid flow hole (761). The pull rod (72) is fixedly connected to the outer wall of the pull rod (72). A weight ring (763) is fixedly connected to the outer side of the top surface of the pull rod (72). Weight holes (764) are formed in the outer wall of the weight ring (763) and are distributed at equal intervals in a ring shape. The top of the weight holes (764) communicates with the upper liquid accumulation bin (42), and the bottom of the weight holes (764) communicates with the inside of the lower liquid accumulation cavity (41).

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