Flow test device for infusion pump

Abstract

The application provides a flow test device for infusion pump, relates to the field of infusion pump test, and comprises a machine body, a mounting seat arranged on the machine body, an infusion mechanism arranged on the mounting seat, a conveying pipe arranged on the infusion mechanism, a smart sensor arranged on the conveying pipe, and a switching mechanism arranged on the machine body; the switching mechanism comprises a rotating shaft rotatably arranged on the mounting seat, a fixed block arranged on the rotating shaft, and measuring containers arranged at two ends of the fixed block respectively; in order to solve the problems that the measuring device is relatively complicated to work and has low work efficiency in the prior art, the switching mechanism is arranged to realize uninterrupted multi-group measurement and improve the work efficiency; the switching mechanism is arranged to solve the problem that the cost is relatively high due to heating and drying in the prior art; and the switching mechanism is arranged to solve the problem that the measuring device has measurement limitations in the prior art.

Description

Technical Field

[0001] This invention relates to the field of injection pump testing, and more specifically, to a flow rate testing device for injection pumps. Background Technology

[0002] Infusion pump flow testing equipment is a tool specifically designed to test and verify the accuracy and stability of the flow rate of medical infusion pumps in actual use.

[0003] Currently, the testing methods for flow rate testing equipment for infusion pumps include manual testing, which involves multiple balance platforms simultaneously measuring multiple infusion pumps. Multiple pumps discharge the liquid to be tested at the same time, and the flow rate of the liquid is detected by intelligent sensors. Simultaneously, the discharged liquid enters multiple measuring containers, and the containers and the liquid are weighed using a balance. However, this method requires multiple trials, and after each use, the inner wall of the measuring container retains residual liquid. Existing methods involve preparing two sets of measuring containers (A / B) and weighing them alternately; while one set is being tested, the other is in a drying or replacement state to achieve "seamless" continuous testing. However, this method is cumbersome and inefficient.

[0004] Therefore, we have made improvements to this and proposed a flow testing device for injection pumps. Summary of the Invention

[0005] The purpose of this invention is to address the problems of existing measuring devices being cumbersome and inefficient.

[0006] To achieve the above-mentioned objectives, the present invention provides a flow testing device for injection pumps to improve the aforementioned problems.

[0007] The application is as follows:

[0008] It includes a body, a mounting base on the body, an infusion mechanism on the mounting base, a delivery pipe on the infusion mechanism, an intelligent sensor on the delivery pipe, and a switching mechanism on the body;

[0009] The switching mechanism includes a rotating shaft rotatably mounted on the mounting base, a fixed block mounted on the rotating shaft, measuring containers respectively mounted at both ends of the fixed block, an electronic balance mounted inside the measuring containers, a cylinder mounted on the mounting base, a spiral groove mounted on the rotating shaft, a transmission disc slidably mounted on the rotating shaft, a jacking column mounted on the transmission disc, and a hollow block slidably mounted inside the mounting base.

[0010] As a preferred technical solution of this application, the output end of the cylinder is connected to the transmission disc, the jacking column is slidably disposed on the spiral groove, and the conveying pipe is fixedly inserted through the switching mechanism and the hollow block.

[0011] As a preferred technical solution of this application, a limiting block is provided on the measuring container, a disk is slidably arranged inside the measuring container, the electronic balance is arranged on the disk, and the limiting block and the disk are adapted to each other.

[0012] As a preferred technical solution of this application, the bottom of the hollow block is provided with an absorbent sponge.

[0013] As a preferred technical solution of this application, the fixed block is provided with a cavity, the cavity is provided with a rotating roller, the fixed block is rotatably provided with a drive shaft, the rotating roller is provided on the drive shaft, the rotating roller is provided with a rope, the rope is slidably provided on the fixed block, and the two ends of the rope are respectively connected to the rotating roller and the disc.

[0014] As a preferred technical solution of this application, a gear ring is provided on the hollow block, and a drive gear is provided on the drive shaft, wherein the drive gear and the gear ring are adapted to each other.

[0015] As a preferred technical solution of this application, the measuring container is provided with a spring, and the two ends of the spring are respectively disposed on the corresponding surfaces of the disk and the measuring container.

[0016] As a preferred technical solution of this application, the disc is made of rubber, and the disc and the measuring container are in seamless contact.

[0017] As a preferred technical solution of this application, a lead screw is rotatably provided on the mounting base, the hollow block is threadedly connected to the lead screw, a rotating disk is provided on the lead screw, a strip groove is provided on the rotating shaft, and the fixing block is slidably provided on the strip groove.

[0018] As a preferred technical solution of this application, the mounting base is provided with baffle one and baffle two, and the hollow block is adapted to baffle one and baffle two.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In the scheme of this application:

[0021] 1. In order to solve the problem that the measuring device in the prior art is relatively cumbersome and has low work efficiency, this application realizes uninterrupted multi-group measurement by setting a switching mechanism, thereby improving work efficiency;

[0022] 2. By using a switching mechanism, the residual liquid to be tested in the measuring container is automatically cleaned by a disc, reducing measurement errors and solving the problem of high cost caused by heating and drying in the prior art;

[0023] 3. By setting up a switching mechanism, the flow stability and safety of the infusion pump under conditions such as changes in body position and tubing bends are verified in advance through dynamic simulation of real scenarios, avoiding clinical errors and solving the problem of measurement limitations of existing measuring devices. Attached Figure Description

[0024] Figure 1 A schematic diagram of the flow testing equipment for the infusion pump provided in this application;

[0025] Figure 2 A schematic diagram of the internal structure of the mounting base for the flow testing equipment for the injection pump provided in this application;

[0026] Figure 3 A partial cross-sectional schematic diagram of the mounting base for the flow testing equipment for the injection pump provided in this application;

[0027] Figure 4 A schematic diagram of the internal structure of the hollow block and the fixed block of the flow testing device for the infusion pump provided in this application;

[0028] Figure 5 The flow testing equipment for the injection pump provided in this application Figure 4 Enlarged structural diagram of area A in the middle;

[0029] Figure 6 A partial cross-sectional schematic diagram of the fixing block and measuring vessel of the flow testing equipment for the injection pump provided in this application.

[0030] The image shows:

[0031] 1. Body; 101. Mounting base; 102. Infusion mechanism; 103. Delivery pipe; 104. Intelligent sensor;

[0032] 2. Switching mechanism; 201. Rotating shaft; 202. Fixed block; 203. Measuring container; 204. Electronic balance; 205. Cylinder; 206. Spiral groove; 207. Transmission disc; 208. Pushing column; 209. Hollow block; 210. Limiting block; 211. Disc; 212. Absorbent sponge; 213. Cavity; 214. Rotating roller; 215. Drive shaft; 216. Rope; 217. Gear ring; 218. Drive gear; 219. Spring; 220. Lead screw; 221. Rotating disc; 222. Strip groove; 223. Baffle one; 224. Baffle two. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0034] As described in the background section, existing measuring devices are cumbersome to operate and have low efficiency.

[0035] To address this technical problem, the present invention provides a flow testing device for injection pumps, which is applied to the testing of injection pumps.

[0036] For details, please refer to Figures 1-6 As shown, the flow testing equipment for the infusion pump specifically includes: a body 1, a mounting base 101 mounted on the body 1, an infusion mechanism 102 mounted on the mounting base 101, a delivery pipe 103 mounted on the infusion mechanism 102, and an intelligent sensor 104 mounted on the delivery pipe 103. It also includes a switching mechanism 2 mounted on the body 1. In the prior art, the infusion mechanism 102 is used to discharge the liquid to be tested, the delivery pipe 103 is used to transfer the liquid to be tested, and the intelligent sensor 104 is used to detect the flow rate of the liquid to be tested.

[0037] The switching mechanism 2 includes a rotating shaft 201 rotatably mounted on the mounting base 101, a fixed block 202 mounted on the rotating shaft 201, measuring containers 203 respectively mounted at both ends of the fixed block 202, an electronic balance 204 mounted inside the measuring container 203, a cylinder 205 mounted on the mounting base 101, a spiral groove 206 mounted on the rotating shaft 201, a transmission disc 207 slidably mounted on the rotating shaft 201, a jacking column 208 mounted on the transmission disc 207, and a hollow block 209 slidably mounted inside the mounting base 101.

[0038] The flow testing device for infusion pumps provided by this invention addresses the problem of cumbersome operation and low efficiency of existing measuring devices. By setting a switching mechanism 2, this application achieves uninterrupted multi-group measurements, thereby improving work efficiency.

[0039] By using the switching mechanism 2, the disc 211 automatically cleans the residual liquid to be tested in the measuring container 203, reducing measurement errors and solving the problem of high cost caused by heating and drying in the prior art.

[0040] By using the switching mechanism 2, the flow stability and safety of the infusion pump under conditions such as changes in body position and pipe bends are verified in advance through dynamic simulation of real-world scenarios, thus avoiding clinical errors and solving the problem of measurement limitations in existing technologies.

[0041] To enable those skilled in the art to better understand 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.

[0042] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a flow testing device for an injection pump has a cylinder 205 whose output end is connected to a transmission disc 207, a jacking column 208 that is slidably mounted on a spiral groove 206, and a delivery pipe 103 that is fixedly inserted through a switching mechanism 2 and a hollow block 209.

[0045] In use, the infusion mechanism 102 is activated, and the liquid to be tested is discharged from the infusion mechanism 102 and transferred through the delivery pipe 103, such as... Figure 3 As shown, the delivery pipe 103 and the measuring container 203 are on the same horizontal line. The liquid to be tested is transferred into the measuring container 203 through the delivery pipe 103. Figure 2 As shown, the switching mechanism 2 is equipped with multiple sets. The mass of the liquid to be tested is recorded by the electronic balance 204. When the mass of the first set of liquid to be tested is recorded, the cylinder 205 is activated. The output end of the cylinder 205 drives the transmission disk 207 to move along the rotating shaft 201. The push column 208 on the transmission disk 207 squeezes the spiral groove 206, causing the rotating shaft 201 to rotate 180 degrees. At this time, the two measuring containers 203 at the upper and lower ends of the fixed block 202 rotate 180 degrees synchronously. The measuring container 203 at the lower end of the fixed block 202 rotates 180 degrees and aligns with the delivery pipe 103. The measuring container 203 at the upper end of the fixed block 202 rotates 180 degrees and discharges the liquid to be tested. When the next set of measurements is needed, the cylinder 205 drives the transmission disk 207 to reset. Similarly, the two measuring containers 203 at the upper and lower ends of the fixed block 202 reset synchronously. Through this device, uninterrupted measurement can be achieved, improving work efficiency.

[0046] Furthermore, a limit block 210 is provided on the measuring container 203, and a disk 211 is slidably arranged inside the measuring container 203. An electronic balance 204 is arranged on the disk 211, and the limit block 210 and the disk 211 are compatible.

[0047] When the measuring container 203 at the upper end of the fixed block 202 rotates 180 degrees and discharges the liquid to be tested, the disc 211 slides downward under the action of gravity. The disc 211 slides downward and squeezes out the remaining liquid to be tested in the measuring container 203. The limiting block 210 blocks the disc 211 to prevent it from detaching from the measuring container 203. When the measuring container 203 is reset, the fixed block 202 automatically resets by its own weight. The remaining liquid to be tested on the inner wall of the measuring container 203 is cleaned, reducing measurement error.

[0048] Furthermore, the bottom of the hollow block 209 is provided with an absorbent sponge 212, which absorbs the liquid to be tested discharged from the measuring container 203 to prevent the liquid to be tested from splashing everywhere when discharged, thus preventing it from affecting the staff's data recording.

[0049] Furthermore, a cavity 213 is provided inside the fixed block 202, and a rotating roller 214 is provided inside the cavity 213. A drive shaft 215 is rotatably mounted on the fixed block 202, and the rotating roller 214 is mounted on the drive shaft 215. A rope 216 is mounted on the rotating roller 214 and is slidably mounted on the fixed block 202. The two ends of the rope 216 are respectively connected to the rotating roller 214 and the disc 211.

[0050] Furthermore, a gear ring 217 is provided on the hollow block 209, and a drive gear 218 is provided on the drive shaft 215, with the drive gear 218 and the gear ring 217 being compatible.

[0051] When the measuring container 203 at the upper end of the fixed block 202 rotates 180 degrees and discharges the liquid to be measured, the drive gear 218 and the gear ring 217 engage and rotate. The drive gear 218 drives the drive shaft 215 and the rotating roller 214 to rotate synchronously. The rotating roller 214 rotates and releases the rope 216 synchronously. The measuring container 203 at the lower end of the fixed block 202 rotates 180 degrees synchronously, and the rotating roller 214 at the lower end of the fixed block 202 synchronously retracts the rope 216, causing the disc 211 to return to the bottom of the measuring container 203. Figure 6 As shown, by rotating the roller 214 and releasing the rope 216 simultaneously, the impact between the disc 211 and the limiting block 210 can be reduced, thus improving the service life of the device.

[0052] Furthermore, a spring 219 is provided on the measuring container 203, with the two ends of the spring 219 respectively disposed on the corresponding surfaces of the disk 211 and the measuring container 203;

[0053] When the rotating roller 214 rotates and releases the rope 216 simultaneously, the disc 211 is driven to slide by the elasticity of the spring 219. The elasticity of the spring 219 and the traction force of the rope 216 make the disc 211 more stable when discharging the liquid to be tested and automatically resetting, thus improving the practicality of the device.

[0054] Furthermore, the disc 211 is made of rubber, and the disc 211 and the measuring container 203 are in seamless contact;

[0055] By using the switching mechanism 2 to drive the two measuring containers 203 at the upper and lower ends of the fixed block 202 to continuously switch positions, multiple sets of measurements can be performed without interruption, which improves work efficiency. The disc 211 automatically cleans the residual liquid to be tested in the measuring container 203, reducing measurement errors and costs.

[0056] Example 2 further optimizes the flow testing equipment for the injection pump provided in Example 1, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a lead screw 220 is rotatably mounted on the mounting base 101, a hollow block 209 is threadedly connected to the lead screw 220, a rotating disk 221 is mounted on the lead screw 220, a strip groove 222 is mounted on the rotating shaft 201, and a fixing block 202 is slidably mounted on the strip groove 222.

[0057] When the rotating disk 221 is rotated, the rotating disk 221 drives the lead screw 220 to rotate synchronously, the lead screw 220 drives the hollow block 209 to move, and the hollow block 209 drives the fixed block 202 and the measuring container 203 to move synchronously. At this time, the delivery pipe 103 on the hollow block 209 is stretched and bent. This method simulates the situation that affects the flow rate of the liquid to be measured, such as changes in the position of the pump body, patient movement, and pipe bending, in actual use.

[0058] Furthermore, the mounting base 101 is provided with baffle 1 223 and baffle 224. The hollow block 209 is adapted to baffle 1 223 and baffle 224. The hollow block 209 is limited by baffle 1 223 and baffle 224 to prevent the conveying pipe 103 from being torn. When the hollow block 209 and baffle 1 223 are in contact, the conveying pipe 103 and the measuring container 203 are on the same horizontal line. Baffle 1 223 can be used to quickly position the hollow block 209.

[0059] By dynamically simulating the effects of pump position changes, patient movement, and tubing bends on the flow rate of the fluid being measured in actual use through switching mechanism 2, the stability and safety of the infusion pump under conditions such as changes in body position and tubing bends can be verified in advance through dynamic simulation of real scenarios, thus avoiding clinical errors.

[0060] The usage process of the flow testing equipment for injection pumps provided by this invention is as follows:

[0061] In use, the infusion mechanism 102 is activated, and the liquid to be tested is discharged from the infusion mechanism 102 and transferred through the delivery pipe 103. The delivery pipe 103 and the measuring container 203 are on the same horizontal line. The liquid to be tested is transferred into the measuring container 203 through the delivery pipe 103. The mass of the liquid to be tested is recorded by the electronic balance 204. When the mass of the first set of liquid to be tested is recorded, the cylinder 205 is activated. The output end of the cylinder 205 drives the transmission disk 207 to move along the rotating shaft 201. The push column 208 on the transmission disk 207 squeezes the spiral groove 206, causing the rotating shaft 201 to rotate 180 degrees. At this time, the two measuring containers 203 at the upper and lower ends of the fixed block 202 rotate 180 degrees synchronously. The measuring container 203 at the lower end of the fixed block 202 rotates 180 degrees and aligns with the delivery pipe 103. The measuring container 203 at the upper end of the fixed block 202 rotates 180 degrees and discharges the liquid to be tested. The drive gear 218 and gear... The ring 217 rotates and drives the drive gear 218 to drive the drive shaft 215 and the rotating roller 214 to rotate synchronously. The rotating roller 214 rotates and releases the rope 216 synchronously. The elasticity of the spring 219 drives the disc 211 to slide and discharge the residual liquid to be measured in the measuring container 203. When the next set of measurements is needed, the cylinder 205 drives the transmission disc 207 to reset. Similarly, the two measuring containers 203 at the upper and lower ends of the fixed block 202 are reset synchronously. Through this device, uninterrupted measurement can be achieved. When the rotating disc 221 is rotated, the rotating disc 221 drives the lead screw 220 to rotate synchronously. The lead screw 220 drives the hollow block 209 to move. The hollow block 209 drives the fixed block 202 and the measuring container 203 to move synchronously. At this time, the delivery pipe 103 on the hollow block 209 is stretched and bent. This method simulates the situation in actual use where changes in pump position, patient movement, and pipe bending affect the flow rate of the liquid to be measured.

[0062] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A flow rate testing device for an infusion pump, comprising a body (1), a mounting base (101) disposed on the body (1), an infusion mechanism (102) disposed on the mounting base (101), a delivery pipe (103) disposed on the infusion mechanism (102), and an intelligent sensor (104) disposed on the delivery pipe (103), characterized in that, Includes a switching mechanism (2) disposed on the body (1); The switching mechanism (2) includes a rotating shaft (201) rotatably mounted on the mounting base (101), a fixed block (202) mounted on the rotating shaft (201), measuring containers (203) respectively mounted at both ends of the fixed block (202), an electronic balance (204) mounted in the measuring container (203), a cylinder (205) mounted on the mounting base (101), a spiral groove (206) mounted on the rotating shaft (201), a transmission disc (207) slidably mounted on the rotating shaft (201), a top moving column (208) mounted on the transmission disc (207), and a hollow block (209) slidably mounted in the mounting base (101). The fixed block (202) is provided with a cavity (213), and a rotating roller (214) is provided in the cavity (213). A drive shaft (215) is rotatably provided on the fixed block (202), and the rotating roller (214) is provided on the drive shaft (215). A rope (216) is provided on the rotating roller (214), and the rope (216) is slidably provided on the fixed block (202). The two ends of the rope (216) are respectively connected to the rotating roller (214) and the disc (211). A gear ring (217) is provided on the hollow block (209), and a drive gear (218) is provided on the drive shaft (215). The drive gear (218) and the gear ring (217) are adapted to each other. A spring (219) is provided on the measuring container (203), and the two ends of the spring (219) are respectively provided on the corresponding surfaces of the disk (211) and the measuring container (203); The disc (211) is made of rubber, and the disc (211) and the measuring container (203) are in seamless contact; A lead screw (220) is rotatably mounted on the mounting base (101), and the hollow block (209) is threadedly connected to the lead screw (220). A rotating disk (221) is mounted on the lead screw (220), and a strip groove (222) is mounted on the rotating shaft (201). The fixing block (202) is slidably mounted on the strip groove (222).

2. The flow testing device for an injection pump according to claim 1, characterized in that, The output end of the cylinder (205) is connected to the transmission disc (207), the jacking column (208) is slidably disposed on the spiral groove (206), and the conveying pipe (103) is fixedly inserted through the switching mechanism (2) and the hollow block (209).

3. The flow testing device for an injection pump according to claim 2, characterized in that, The measuring container (203) is provided with a limiting block (210), and a disc (211) is slidably arranged inside the measuring container (203). The electronic balance (204) is arranged on the disc (211), and the limiting block (210) and the disc (211) are compatible.

4. The flow testing device for an injection pump according to claim 3, characterized in that, The bottom of the hollow block (209) is provided with an absorbent sponge (212).

5. The flow testing device for an injection pump according to claim 4, characterized in that, The mounting base (101) is provided with baffle one (223) and baffle two (224), and the hollow block (209) is adapted to baffle one (223) and baffle two (224).

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