Anti-blocking device of electronic infusion pump
By introducing an anti-blocking mechanism into the electronic infusion pump, the sedimentation and bubbles are separated by using the precipitation barrel and filter membrane, the problem of infusion tube blockage is solved, the stability and safety of drug infusion are achieved, and the cleaning process is simplified.
Patent Information
- Application Number
- CN202421915100.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-08
AI Technical Summary
When existing electronic infusion pumps inject large doses of drug liquid, precipitates and bubbles are prone to accumulate in the filter membrane, resulting in blockage of the infusion tube and affecting the accuracy and safety of drug infusion.
Anti-blocking mechanism is adopted, including a precipitation barrel, a liquid inlet tube, a filter membrane, a fixing barrel and a rotating ring. The precipitate and bubbles are separated by the design in the precipitation barrel. The filter membrane is further filtered to prevent it from entering the infusion tube. Combined with the counterweight block and exhaust waste exhaust structure, it ensures that the precipitation barrel always maintains an effective precipitation effect.
Effectively prevent infusion tube from being blocked, ensure smooth drug infusion, avoid precipitates and bubbles gathering in the filter membrane, improve the safety and accuracy of infusion, and simplify the cleaning process.
Smart Images
Figure CN223126998U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical appliances, and particularly relates to an anti-blocking device for an electronic infusion pump. Background Technique
[0002] An infusion pump is an intelligent infusion device, which is a special medical device that uses mechanical driving force to accurately control the number of drops or the infusion flow rate of the infusion, ensuring accurate dosage and safe entry into the patient's body. The application of the infusion pump in clinical practice has greatly improved the accuracy, safety and nursing quality of the infusion. An electronic infusion pump is a type of infusion pump with higher intelligent infusion control and higher safety. However, when the electronic infusion pump infuses the liquid medicine, some drugs will have precipitation and bubbles. These precipitates and bubbles entering the infusion tube will cause the infusion tube to be blocked, affecting the infusion of the medicine. Although there are some anti-blocking electronic infusion pumps on the market, these electronic infusion pumps mainly set filter membranes at the infusion tube inlet or inside the infusion tube to filter the precipitates and bubbles to prevent blockage. However, the filter membrane has an obvious filtering effect on small-dose liquid medicine. When infusing large-dose liquid medicine, the precipitates and bubbles will accumulate at the filter membrane, still causing the infusion tube to be blocked, resulting in unsmooth drug infusion and affecting the treatment of patients. Content of the Utility Model
[0003] In view of the problems existing in the prior art, the utility model discloses an anti-blocking device for an electronic infusion pump. The technical solution adopted is that it includes an electronic infusion pump body and an infusion tube. An outlet tube communicating with the inside is arranged on the electronic infusion pump body, and an anti-blocking mechanism is connected to the outlet tube and the infusion tube;
[0004] The anti-blocking mechanism includes a first rotating ring, a precipitation barrel, an inlet tube, a filter membrane, a fixed barrel and a second rotating ring. The inner side of one end of the first rotating ring is rotatably connected to the side of the outlet tube, and the inner side of the other end of the first rotating ring is fixedly connected to one end of the inlet tube. The inlet tube is fixedly installed in the through hole on one side of one end of the precipitation barrel. One end of the inlet tube located inside the precipitation barrel is in a sealed state. An inlet port is opened on the side of one end of the inlet tube located inside the precipitation barrel. A fixed tube is fixedly installed in the through hole on the side of the other end of the precipitation barrel. One end of the fixed tube located inside the precipitation barrel is in a sealed state. An outlet port is opened on the side of this end of the fixed tube. A filter membrane is fixedly installed in the outlet port on the side of this end of the fixed tube. The side of the end of the fixed tube located outside the precipitation barrel is fixedly connected to the inner side of the second rotating ring, and the second rotating ring is rotatably connected to one end of the infusion tube. The precipitation barrel is in a barrel-shaped structure with a smaller upper part and a larger lower part.
[0005] As a preferred technical solution of the utility model, the filter membrane is a PES filter membrane.
[0006] As a preferred technical solution of the present utility model, a counterweight is fixedly installed on the side surface of the lower half of the precipitation barrel.
[0007] As a preferred technical solution of the present utility model, the exhaust port on the side surface of the upper half of the precipitation barrel is connected to one end of the exhaust pipe, and a sealing cover is covered on the other end of the exhaust pipe.
[0008] As a preferred technical solution of the present utility model, the sealing cover is made of flexible rubber material.
[0009] As a preferred technical solution of the present utility model, the sewage outlet on the side surface of one end of the precipitation barrel is connected to one end of the sewage pipe, and a stop clamp is installed on the sewage pipe.
[0010] Advantages of the present utility model: The present utility model enables the liquid medicine to enter the precipitation barrel through the liquid inlet pipe. The liquid medicine will reduce the flow rate in the precipitation barrel with a larger volume, so that the heavier sediment in the liquid medicine can sink to the bottom of the precipitation barrel, and the lighter bubbles can float on the upper part of the precipitation barrel, removing the sediment and bubbles before entering the infusion tube, thereby preventing the sediment and bubbles from blocking the infusion tube. And the liquid medicine can be further filtered through the filter membrane at the liquid outlet of the fixed barrel, preventing the sediment and bubbles from entering the infusion tube. Since the volume inside the precipitation barrel is large, it can accommodate more sediment and bubbles, and the sediment and bubbles will not accumulate at the filter membrane, thus effectively avoiding the blockage of the infusion tube. Moreover, both ends of the liquid inlet pipe and the fixed pipe are rotatably connected to the liquid outlet pipe and the infusion tube. Under the action of gravity, the larger part of the precipitation barrel can always be on the lower side, enabling the precipitation barrel to achieve the best precipitation effect and not being affected by the placement of the electronic infusion pump on the anti-blocking function. The ES filter membrane used has natural hydrophilic properties, shows very low protein adsorption capacity, and has a higher water flux. The counterweight can further increase the weight of the larger part of the precipitation barrel, making it always face downwards. The air in the precipitation barrel can be discharged through the exhaust pipe during the infusion debugging to prevent the air from affecting the infusion of the liquid medicine. And the sealing cover made of flexible rubber material can well seal the exhaust pipe to prevent liquid leakage. After the infusion is completed, the sediment in the precipitation barrel can be discharged to the outside through the sewage pipe, facilitating the cleaning of the precipitation barrel. Description of the Drawings
[0011] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0012] Figure 2 is a schematic diagram of the side structure of the present utility model;
[0013] Figure 3 is a schematic diagram of the partial enlarged structure at A of the present utility model.
[0014] In the figure: 1 electronic infusion pump body, 2 liquid outlet pipe, 3 infusion tube, 4 anti-blocking mechanism, 41 first rotating ring, 42 precipitation barrel, 43 liquid inlet pipe, 44 filter membrane, 45 fixed pipe, 46 second rotating ring, 5 counterweight, 6 exhaust pipe, 7 sealing cover, 8 sewage discharge pipe, 9 stop clamp. Detailed implementation manners
[0015] Embodiment 1
[0016] Such as Figures 1 to 3As shown in the figure, the present utility model discloses an anti-blocking device for an electronic infusion pump. The technical solution adopted is as follows: It includes an electronic infusion pump body 1 and an infusion tube 3. An outlet tube 2 communicating with the inside is provided on the electronic infusion pump body 1. An anti-blocking mechanism 4 is connected to the outlet tube 2 and the infusion tube 3. The anti-blocking mechanism 4 includes a first rotating ring 41, a sedimentation barrel 42, an inlet tube 43, a filter membrane 44, a fixed cylinder 45 and a second rotating ring 46. The inner side of one end of the first rotating ring 41 is rotatably connected to the side of the outlet tube 2, and the inner side of the other end of the first rotating ring 41 is fixedly connected to one end of the inlet tube 43. The inlet tube 43 is fixedly installed in the through hole on the side of one end of the sedimentation barrel 42. One end of the inlet tube 43 located inside the sedimentation barrel 42 is in a sealed state. An inlet port is provided on the side of the end of the inlet tube 43 located inside the sedimentation barrel 42. A fixed tube 45 is fixedly installed in the through hole on the side of the other end of the sedimentation barrel 42. One end of the fixed tube 45 located inside the sedimentation barrel 42 is in a sealed state. An outlet port is provided on the side of this end of the fixed tube 45. A filter membrane 44 is fixedly installed in the outlet port on the side of this end of the fixed tube 45. The filter membrane 44 is a PES filter membrane. The ES filter membrane adopted has natural hydrophilic properties, shows a very low protein adsorption capacity, and has a higher water flux. The side of the end of the fixed tube 45 located outside the sedimentation barrel 42 is fixedly connected to the inner side of the second rotating ring 46. The second rotating ring 46 is rotatably connected to one end of the infusion tube 3. The sedimentation barrel 42 is in a barrel shape with a smaller upper part and a larger lower part. A counterweight 5 is fixedly installed on the side of the lower half of the sedimentation barrel 42. By the counterweight 5, the weight of the larger part of the sedimentation barrel 42 can be further increased, so that it can always face downwards. The exhaust port on the side of the upper half of the sedimentation barrel 42 is connected to one end of an exhaust pipe 6. A sealing cover 7 is covered on the other end of the exhaust pipe 6. The material of the sealing cover 7 is flexible rubber material. Through the exhaust pipe 6, the air in the sedimentation barrel 42 can be discharged during infusion debugging, preventing the air from affecting the infusion of the medicinal liquid. And the flexible rubber material sealing cover 7 can well seal the exhaust pipe 6 to prevent liquid leakage. The sewage discharge port on the side of one end of the sedimentation barrel 42 is connected to one end of a sewage discharge pipe 8. And the flexible rubber material sealing cover can well seal the exhaust to prevent liquid leakage. A stop clamp 9 is installed on the sewage discharge pipe 8. Through the sewage discharge pipe 8, after the infusion is completed, the sediment in the sedimentation barrel 42 can be discharged to the outside, facilitating the cleaning of the sedimentation barrel 42. Through the inlet tube 43, the medicinal liquid can enter the sedimentation barrel 42. The medicinal liquid will reduce the flow rate in the sedimentation barrel 42 with a larger volume, so that the heavier sediment in the medicinal liquid can sink to the bottom of the sedimentation barrel 42, and the lighter air bubbles can float on the upper part of the sedimentation barrel 42, removing the sediment and air bubbles before they enter the infusion tube 3, thereby preventing the sediment and air bubbles from blocking the infusion tube 3. And through the filter membrane 44 on the outlet of the fixed tube 45, the medicinal liquid can be further filtered to prevent the sediment and air bubbles from entering the infusion tube 3. Since the volume inside the sedimentation barrel 42 is large and can accommodate more sediment and air bubbles, the sediment and air bubbles will not accumulate at the filter membrane 44, thus effectively avoiding the blockage of the infusion tube 3.Moreover, both ends of the liquid inlet pipe 43 and the fixed pipe 45 are rotatably connected to the liquid outlet pipe 2 and the infusion pipe 3. Under the action of gravity, a larger part of the precipitation barrel 42 can always be on the lower side, enabling the precipitation barrel 42 to achieve the best precipitation effect and preventing the anti-blocking function from being affected by the placement of the electronic infusion pump.
[0017] The working principle of the present utility model: When infusing a patient, the infusion pipe 3 can be clamped by a stop clamp, the sealing cap 7 is unplugged, and the electronic infusion pump body 1 works to transport the medicinal liquid through the liquid outlet pipe 2 and the liquid inlet pipe 42 into the precipitation barrel 42. As the medicinal liquid in the precipitation barrel 42 increases, the air in the precipitation barrel 42 will be discharged to the outside through the exhaust pipe 6 at the upper part. When the medicinal liquid overflows from the exhaust pipe 6, the sealing cap 7 is covered on the exhaust pipe 6. At this time, the precipitation barrel 42 is filled with the medicinal liquid. The stop clamp on the infusion pipe 3 is opened, enabling the medicinal liquid in the precipitation barrel 42 to enter the infusion pipe 3 and be discharged from the infusion pipe 3. At this time, all the air in the precipitation barrel 42 and the infusion pipe 3 is discharged. The infusion pipe 3 is connected to the retention needle on the patient's body to infuse the medicinal liquid to the patient. When the medicinal liquid is infused, the drug will first enter the precipitation barrel 42. The heavier precipitate will sink to the bottom of the precipitation barrel 42, the lighter air bubbles will float to the top of the precipitation barrel 42, and the remaining medicinal liquid will enter the infusion pipe 3 after being filtered by the filter membrane 44. Along with the operation of the electronic infusion pump body 1, the medicinal liquid is transported into the patient's body. Since the precipitate and air bubbles in the medicinal liquid do not enter the infusion pipe 3 and accumulate at the filter membrane 44, the infusion pipe 3 is effectively prevented from being blocked.
[0018] The stop clamp on the infusion pipe 3 is an existing component and is not shown in the figure.
[0019] The components not described in detail in this article are of the prior art.
[0020] Although the specific embodiments of the present utility model are described in detail above, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model, and the modifications or deformations without creative labor are still within the protection scope of the present utility model.
Claims
1. An anti-blocking device for an electronic infusion pump, comprising an electronic infusion pump body (1) and an infusion tube (3), wherein a liquid outlet tube (2) communicating with the inside is arranged on the electronic infusion pump body (1), and is characterized in that, The liquid outlet pipe (2) and the infusion pipe (3) are connected with an anti-blocking mechanism (4); The anti-blocking mechanism (4) includes a first rotating ring (41), a sedimentation bucket (42), a liquid inlet pipe (43), a filter membrane (44), a fixed pipe (45) and a second rotating ring (46). The inner side of one end of the first rotating ring (41) is rotatably connected to the side surface of the liquid outlet pipe (2), and the inner side of the other end of the first rotating ring (41) is fixedly connected to one end of the liquid inlet pipe (43). The liquid inlet pipe (43) is fixedly installed in the through hole on the side surface of one end of the sedimentation bucket (42). One end of the liquid inlet pipe (43) located inside the sedimentation bucket (42) is in a sealed state. A liquid inlet is formed on the side surface of one end of the liquid inlet pipe (43) located inside the sedimentation bucket (42). A fixed pipe (45) is fixedly installed in the through hole on the side surface of the other end of the sedimentation bucket (42). One end of the fixed pipe (45) located inside the sedimentation bucket (42) is in a sealed state. A liquid outlet is formed on the side surface of this end of the fixed pipe (45). A filter membrane (44) is fixedly installed in the liquid outlet on the side surface of this end of the fixed pipe (45). The side surface of the end of the fixed pipe (45) located outside the sedimentation bucket (42) is fixedly connected to the inner side surface of the second rotating ring (46). The second rotating ring (46) is rotatably connected to one end of the infusion pipe (3). The sedimentation bucket (42) is in a barrel-shaped structure with a smaller upper part and a larger lower part.
2. The anti-blocking device of an electronic infusion pump according to claim 1, characterized in that: The filter membrane (44) is a PES filter membrane.
3. The anti-blocking device of an electronic infusion pump according to claim 1, characterized in that: A counterweight (5) is fixedly installed on the side surface of the lower half of the sedimentation bucket (42).
4. The anti-blocking device of an electronic infusion pump according to claim 1, characterized in that: The exhaust port on the side surface of the upper half of the sedimentation bucket (42) is connected to one end of an exhaust pipe (6), and a sealing cover (7) is covered on the other end of the exhaust pipe (6).
5. The anti-blocking device of an electronic infusion pump according to claim 4, characterized in that: The material of the sealing cover (7) is flexible rubber material.
6. The anti-blocking device of an electronic infusion pump according to claim 1, characterized in that: The sewage discharge port on the side surface of one end of the sedimentation bucket (42) is connected to one end of a sewage discharge pipe (8), and a stop clamp (9) is installed on the sewage discharge pipe (8).