Vein infusion apparatus for pump

Abstract

The utility model relates to the field of medical instruments, and discloses an intravenous infusion apparatus for a pump, which can block an air passage after medicament infusion is completed, and does not worry about the problem of air embolism. The infusion apparatus comprises a first infusion tube, the blocking mechanism comprises a blocking platform, an elastic part and a floating part, the blocking platform is provided with a through hole, one end of the elastic part is connected with the blocking platform, the other end of the elastic part is connected with the floating part, the elastic part is driven by elastic force to enable the floating part to be close to the through hole so as to block the through hole, and the floating part can be driven by buoyancy of a solution in the first infusion tube to be away from the through hole. Further, the through hole is opened; the through hole is communicated with the first infusion tube and the adjusting valve; a second infusion tube; the first infusion tube, the blocking mechanism, the adjusting valve and the second infusion tube are sequentially connected.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a intravenous infusion device for a pump. Background Art

[0002] Infusion sets are very common medical supplies. They are generally composed of eight parts connected together, including intravenous needles or injection needles, needle caps, infusion hoses, drug filter, flow regulator, drip bucket, bottle stopper puncture device, and air filter. Some infusion sets also have injection parts, drug adding ports, etc.

[0003] During the infusion process, when the liquid in the infusion bag is about to be infused, the patient will feel nervous and anxious, fearing that too much air in the infusion bag will enter his body and urgently urge the medical staff. However, it is often encountered that the medical staff is too busy with the workload to take care of the infusion situation of each patient. Only when the patient finds out and notifies the medical staff, will they take some time to change the liquid or remove the needle for him.

[0004] In clinical practice, syringe pumps and infusion pumps are often used to achieve high-precision, smooth and pulsation-free infusion of drug solutions. Usually, the drug solution is smoothly pressed into the human body by pushing or squeezing the pipeline with external pressure. If the drug solution is injected but not replaced in time, air is likely to be pressed into the human body. If the air is less than 10 ml, the human body will not produce uncomfortable symptoms. If a large amount of air quickly enters the human blood system, the air will flow into the human heart with the venous blood. During the heart contraction process, a large amount of foam is generated in the blood in the heart, making it difficult for the blood flow of the right ventricle to enter the pulmonary artery, and an air embolism phenomenon occurs. Pulmonary embolism may be an acute onset, with obvious chest tightness and difficulty breathing, as well as irritability, severe back pain, coughing and hemoptysis, and even shock symptoms. More serious air embolism can cause the patient's death within a few minutes. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a pump-based intravenous infusion set, which can complete the infusion of medicines and block the passage of gas without worrying about the problem of air embolism.

[0006] On the one hand, the intravenous infusion device for pump according to the embodiment of the utility model comprises:

[0007] First infusion tube;

[0008] The blocking mechanism comprises a blocking platform, an elastic member and a floating member, wherein the blocking platform is provided with a through hole, one end of the elastic member is connected to the blocking platform, and the other end is connected to the floating member, the elastic member is driven by elastic force to make the floating member approach the through hole, thereby blocking the through hole, and the floating member is used to be driven by the buoyancy of the solution in the first infusion tube to make the floating member away from the through hole, thereby opening the through hole;

[0009] A regulating valve, wherein the through hole is connected to the first infusion tube and the regulating valve;

[0010] Second infusion tube;

[0011] The first infusion tube, the blocking mechanism, the regulating valve and the second infusion tube are connected in sequence.

[0012] According to some embodiments of the present invention, the floating member is in a truncated cone shape, and the peripheral wall of the floating member can abut against the through hole.

[0013] According to some embodiments of the present invention, the blocking platform is funnel-shaped, and the blocking platform is suitable for the peripheral wall of the floating member.

[0014] According to some embodiments of the present invention, the blocking platform is provided with an annular groove, and the annular groove is arranged around the through hole.

[0015] According to some embodiments of the present invention, the elastic member is a spring or an elastic rope.

[0016] According to some embodiments of the present invention, the floating member is made of one or more of foam plastic, foam aluminum, and wood.

[0017] According to some embodiments of the present utility model, the first infusion tube and the blocking mechanism are both provided in plurality, and the first infusion tube and the blocking mechanism are both connected to the regulating valve.

[0018] According to some embodiments of the present invention, the regulating valve is provided with a plurality of valve ports, and the valve ports correspond one-to-one to the first infusion tube and the blocking mechanism.

[0019] According to some embodiments of the present invention, the first infusion tube is suitable for an infusion environment with a pressure not exceeding 200 kPa.

[0020] According to some embodiments of the present invention, the first infusion tube is provided with a dripping funnel, the dripping funnel is provided with a filter, and the pore size of the filter is 10 μm-20 μm.

[0021] The embodiments of the present invention have at least the following beneficial effects:

[0022] The first infusion tube, the blocking mechanism, the regulating valve, and the second infusion tube are connected in sequence, so that the medicine can be delivered from the medicine bottle into the human body; in the blocking mechanism, when the medicine passes through, the floating part will pull the elastic part to a relaxed state away from the blocking platform due to its buoyancy, so that the liquid can enter the regulating valve through the gap between the blocking platform and the floating part. When the injection of the medicine is completed, the infusion of the medicine is completed, and the buoyancy of the medicine is reduced. Due to the resilience of the elastic part, the floating part is pulled back to the blocking funnel and closely cooperates with it to block the passage of the gas, and there is no need to worry about the problem of air embolism.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 A schematic diagram of a pump-based intravenous infusion set according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of a blocking mechanism of an IV infusion set for a pump is shown;

[0027] Figure 3-Figure 4 for Figure 2 The schematic diagram of the state of the elastic member of the blocking mechanism during the change process when in use is shown.

[0028] Reference numerals:

[0029] A first infusion tube 100, a drip bucket 110, and a filter 111;

[0030] Blocking mechanism 200, blocking platform 210, annular groove 211, elastic member 220, floating member 230;

[0031] Regulating valve 300;

[0032] The second infusion tube 400 . DETAILED DESCRIPTION

[0033] The following content will describe several embodiments of the present utility model, including embodiments corresponding to the drawings. It can be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present utility model, and should not be understood as limiting the protection scope of the present utility model.

[0034] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0035] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set on" another feature, it can be directly "fixed", "connected", "installed" or "set on" another feature, or it can be indirectly "fixed", "connected", "installed" or "set on" another feature. The words "fixed", "connected", "installed" or "set on" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this utility model in combination with the specific content of the technical solution.

[0036] It should be noted that the descriptions of the directions or positional relationships indicated by up, down, left, right, top, bottom, front, back, inside, and outside used in the present invention are based on the directions or positional relationships in the drawings or embodiments and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] It should be noted that the term "and / or" used in the present utility model includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0038] It should be noted that the description of first and second in the utility model is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] It should be noted that, unless otherwise clearly defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention.

[0040] On the one hand, referring to Figure 1-Figure 4 According to an embodiment of the utility model, the intravenous infusion pump comprises:

[0041] A first infusion tube 100;

[0042] The blocking mechanism 200 includes a blocking platform 210, an elastic member 220 and a floating member 230. The blocking platform 210 is provided with a through hole. One end of the elastic member 220 is connected to the blocking platform 210, and the other end is connected to the floating member 230. The elastic member 220 is driven by elastic force to make the floating member 230 approach the through hole, thereby blocking the through hole. The floating member 230 is used to be driven by the buoyancy of the solution in the first infusion tube 100 to make the floating member 230 away from the through hole, thereby opening the through hole.

[0043] The regulating valve 300, the through hole connects the first infusion tube 100 and the regulating valve 300;

[0044] A second infusion tube 400;

[0045] The first infusion tube 100, the blocking mechanism 200, the regulating valve 300, and the second infusion tube 400 are connected in sequence.

[0046] According to the embodiments of the utility model, by such an arrangement, at least the following effects can be achieved: the first infusion tube 100, the blocking mechanism 200, the regulating valve 300, and the second infusion tube 400 are connected in sequence, so that the medicine can be delivered from the medicine bottle into the human body; in the blocking mechanism 200, when the medicine passes through, the floating member 230 will pull the elastic member 220 in a relaxed state away from the blocking platform 210 due to its buoyancy, so that the liquid can enter the regulating valve 300 through the gap between the blocking platform 210 and the floating member 230. When the injection of the medicine is completed, the infusion of the medicine is completed, and the buoyancy of the medicine is reduced. Because of the resilience of the elastic member 220, the floating member 230 is pulled back to the blocking funnel and closely cooperates with it to block the passage of the gas, and there is no need to worry about the problem of air embolism.

[0047] In some embodiments, the floating member 230 is truncated cone-shaped, and the peripheral wall of the floating member 230 can abut against the through hole. The peripheral wall of the truncated cone-shaped floating member 230 is provided with an inclined side surface, which can abut against the inner wall of the through hole, thereby increasing the contact surface and improving the sealing performance.

[0048] It can be understood that the truncated cone shape is the shape obtained by cutting off the small cone from the large cone.

[0049] It is understandable that the floating member 230 may also be in any shape such as cylindrical, conical, square, etc.

[0050] In some embodiments, the blocking platform 210 is funnel-shaped, and the blocking platform 210 is adapted to the peripheral wall of the floating member 230. The funnel-shaped can abut against the inner wall of the through hole, thereby increasing the contact surface and improving the sealing performance.

[0051] In some embodiments, the blocking platform 210 is provided with an annular groove 211, and the annular groove 211 is arranged around the through hole. The annular groove 211 can store a certain amount of medicine, and the liquid level is higher than the through hole entrance to prevent air from entering the through hole.

[0052] Furthermore, the platform is provided with a plurality of grooves, and the plurality of grooves are arranged around the through hole.

[0053] In some embodiments, the elastic member 220 is a spring or an elastic rope. The spring or elastic rope has elastic force and can return to its original shape after deformation, so that the floating member 230 can abut against the through hole.

[0054] In some embodiments, the floating member 230 is made of one or more of foam plastic, foam aluminum, and wood. The floating member 230 is made of a material with greater buoyancy, which is conducive to the floating member 230 floating in the medicine.

[0055] In some embodiments, the first infusion tube 100 and the blocking mechanism 200 are both provided with a plurality of them, and the first infusion tube 100 and the blocking mechanism 200 are both connected to the regulating valve 300. The regulating valve 300 is provided with a plurality of valve ports, and the valve ports correspond one to one with the first infusion tube 100 and the blocking mechanism 200. When injecting a patient, different medicines can be plugged into different passages at the same time, and the regulating valve 300 can be adjusted to achieve the effect of opening and closing the circuit according to the needs of doctors and patients. After the injection of the liquid medicine is completed, the blocking mechanism 200 will automatically block the first infusion tube 100 to achieve the effect of blocking the air. The nurse only needs to rotate the regulating valve 300 to quickly switch the injection liquid medicine, which is simple, practical and convenient.

[0056] In some embodiments, the first infusion tube is suitable for a pressure infusion environment not exceeding 200 kPa.

[0057] According to some embodiments of the utility model, the first infusion tube is provided with a dripping funnel, and the dripping funnel is provided with a filter, and the filter pore size is 10 μm-20 μm, and the filter can filter most of the impurities therein.

[0058] The above is only a preferred embodiment of the utility model. The utility model is not limited to the above implementation. As long as the technical effect of the utility model is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle disclosed in the utility model shall be included in the scope of protection disclosed in the utility model. All should belong to the protection scope of the utility model. Within the protection scope of the utility model, its technical scheme and / or implementation method can have various modifications and changes.

Claims

1. A intravenous infusion pump, characterized in that: include: A first infusion tube (100); The blocking mechanism (200) comprises a blocking platform (210), an elastic member (220) and a floating member (230), wherein the blocking platform (210) is provided with a through hole, one end of the elastic member (220) is connected to the blocking platform (210), and the other end is connected to the floating member (230), the elastic member (220) is driven by elastic force to make the floating member (230) close to the through hole, thereby blocking the through hole, and the floating member (230) is used to be driven by the buoyancy of the solution in the first infusion tube (100) to make the floating member (230) away from the through hole, thereby opening the through hole; a regulating valve (300), wherein the through hole communicates with the first infusion tube (100) and the regulating valve (300); A second infusion tube (400); The first infusion tube (100), the blocking mechanism (200), the regulating valve (300), and the second infusion tube (400) are connected in sequence.

2. The intravenous infusion pump according to claim 1, characterized in that: The floating member (230) is in a truncated cone shape, and the peripheral wall of the floating member (230) can abut against the through hole.

3. The intravenous infusion pump according to claim 1, characterized in that: The blocking platform (210) is funnel-shaped, and the blocking platform (210) is adapted to the peripheral wall of the floating member (230).

4. The intravenous infusion pump according to claim 1, characterized in that: The blocking platform (210) is provided with an annular groove (211), and the annular groove (211) is arranged around the through hole.

5. The intravenous infusion pump according to claim 1, characterized in that: The elastic member (220) is a spring or an elastic rope.

6. The intravenous infusion pump according to claim 1, characterized in that: The floating member (230) is made of one of foam plastics, foam aluminum and wood.

7. The intravenous infusion pump according to claim 1, characterized in that: The first infusion tube (100) and the blocking mechanism (200) are both provided in plurality, and the first infusion tube (100) and the blocking mechanism (200) are both connected to the regulating valve (300).

8. The intravenous infusion pump according to claim 7, characterized in that: The regulating valve (300) is provided with a plurality of valve ports, and the valve ports correspond one-to-one to the first infusion tube (100) and the blocking mechanism (200).

9. The intravenous infusion pump according to claim 7, characterized in that: The first infusion tube is suitable for an infusion environment with a pressure not exceeding 200 kPa.

10. The intravenous infusion pump according to claim 7, characterized in that: The first infusion tube (100) is provided with a drip bucket (110), and the drip bucket is provided with a filter (111), and the pore size of the filter is 10 μm-20 μm.

Images