Automatic rapid liquid pumping device

Abstract

The automatic rapid liquid pumping device comprises a liquid storage piece, a connecting piece, a puncture piece, a negative pressure control assembly and an air inlet control assembly. The liquid storage part is used for storing the extracted liquid. One end of the connecting piece is provided with a puncture piece, and the other end is connected to the liquid storage piece. The puncture part is used for penetrating into an infusion bag or an infusion bottle so as to extract liquid into the liquid storage part. A liquid outlet channel and an air inlet channel are formed in the puncture part, the liquid outlet channel is communicated with the liquid storage part, and the air inlet channel is used for allowing air to enter the infusion bottle. The negative pressure control assembly and the air inlet control assembly are both arranged on the connecting piece. The negative pressure control assembly is connected to the liquid outlet channel and used for controlling the size of the liquid outlet channel so as to adjust the flow speed of liquid entering the liquid storage part. The air inlet control assembly is communicated with the air inlet channel, the air inlet channel can be opened and closed by operating the air inlet control assembly, and air enters the air inlet channel so that the pressure in the infusion bottle can be kept stable. The automatic rapid liquid pumping device is high in liquid pumping speed and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an automatic rapid liquid extraction device. Background Art

[0002] In clinical drug infusion therapy, there are four specifications of liquid packaging: 50ml, 100ml, 250ml, and 500ml. Due to factors such as the patient's condition, weight, age, and drug properties, the patient's infusion therapy often requires infusion of more than a full bottle of liquid. This requires nurses to extract excess liquid from the full bottle of liquid before preparing the drug solution.

[0003] The existing operation generally uses a syringe to extract excess liquid, but repeatedly extracting liquid is time-consuming and labor-intensive, which not only increases the workload of nurses, but also increases the risk of liquid contamination. When repeatedly puncturing the bottle cap to extract liquid, the bottle cap rubber plug particles may fall into the liquid, causing foreign matter in the liquid and bringing infusion risks to the patient. On the other hand, after the bottled liquid is partially extracted, the negative pressure in the bottle changes. When continuing to extract the liquid, a certain amount of air needs to be injected with a syringe before the liquid can be continued to be extracted, thereby increasing the possibility of air contamination of the liquid in the bottle. When a syringe with a larger extraction volume is used, when the negative pressure in the bottle becomes larger, air also needs to be injected to continue to extract the liquid, which is troublesome to operate. However, there is currently no automatic, fast, disposable liquid extraction device with an air filtration function that can extract more than 50 ml on the market.

[0004] Therefore, it is necessary to provide an automatic rapid liquid extraction device that can automatically and rapidly extract a large amount of liquid. Utility Model Content

[0005] The utility model aims to provide an automatic rapid liquid extraction device which can automatically and rapidly extract a large amount of liquid.

[0006] To achieve the above object, the utility model provides an automatic rapid liquid extraction device, which is suitable for extracting liquid from an infusion bag or an infusion bottle, comprising:

[0007] A liquid storage part, used for storing the extracted liquid;

[0008] A connecting piece, one end of which is connected to the liquid storage piece;

[0009] The piercing member is arranged on the connecting member and is used to penetrate into the infusion bag or the infusion bottle to extract the liquid into the liquid storage member; the piercing member is provided with a liquid outlet channel and an air inlet channel, the liquid outlet channel is connected to the liquid storage member, and the air inlet channel is used to supply gas to enter the infusion bottle;

[0010] A negative pressure control component is disposed on the connecting piece and connected to the liquid outlet channel, and is used to control the size of the liquid outlet channel to adjust the flow rate of the liquid entering the liquid storage piece;

[0011] The air intake control component is arranged on the connecting piece and is connected to the air intake passage. The air intake passage can be opened and closed by operating the air intake control component. The air intake passage is filled with air to keep the pressure in the infusion bottle stable.

[0012] Compared with the prior art, the automatic fast liquid extraction device of the utility model is suitable for extracting liquid in an infusion bag or an infusion bottle. It not only has a fast liquid extraction speed but also is easy to operate. The automatic fast liquid extraction device includes a liquid storage part, a connecting part, a puncture part, a negative pressure control component and an air intake control component. The liquid storage part is used to store the extracted liquid. A puncture part is provided at one end of the connecting part, and the other end is connected to the liquid storage part. The puncture part is used to penetrate into the infusion bag or the infusion bottle to extract the liquid into the liquid storage part. A liquid outlet channel and an air intake channel are provided in the puncture part. The liquid outlet channel is connected to the liquid storage part, and the air intake channel is used to supply gas to enter the infusion bottle. The negative pressure control component and the air intake control component are both arranged on the connecting part. The negative pressure control component is connected to the liquid outlet channel, and is used to control the size of the liquid outlet channel to adjust the flow rate of the liquid entering the liquid storage part, so that the size of the liquid outlet can be adjusted according to the actual liquid extraction demand. The air intake control component is connected to the air intake channel. The air intake control component can be operated to open and close the air intake channel. The air intake channel takes in air to keep the pressure in the infusion bottle stable. When extracting liquid from the infusion bag, the infusion bag itself will adjust the volume according to the amount of liquid, and the pressure is constant, and no ventilation is required. When extracting liquid from the infusion bottle, since the liquid is reduced, the volume remains unchanged, and the internal pressure becomes smaller, the air intake channel needs to be opened to add air in order to continue to extract liquid. The automatic fast liquid extraction device of the utility model has a fast liquid extraction speed and is easy to operate.

[0013] Preferably, a liquid inlet pipe is provided on the connecting member, and the liquid inlet pipe extends into the liquid storage member.

[0014] Preferably, the liquid storage member is a negative pressure drainage bottle.

[0015] Preferably, the negative pressure control component includes an adjusting switch, one end of which extends into the liquid outlet channel and can block the liquid outlet channel to isolate the infusion bag / infusion bottle and the liquid storage component. By operating the adjusting switch, the liquid storage component is connected to the infusion bag / infusion bottle for liquid delivery.

[0016] Preferably, the connecting piece and the liquid storage piece are threadedly connected and sealed.

[0017] Preferably, the liquid storage member is provided with a scale for measuring the volume of the liquid.

[0018] Preferably, the air intake control assembly includes an air intake switch, and the air intake switch is pulled or rotated to allow external gas to enter the infusion bottle through the air intake channel.

[0019] Preferably, an air filter assembly is provided in the air inlet switch, and the outside air enters the infusion bottle through the air filter assembly.

[0020] Preferably, a puncture tip is provided at one end of the puncture member, and the puncture tip facilitates the puncture member to pierce into an infusion bag or an infusion bottle, and a protective cover is provided on the puncture tip.

[0021] Preferably, the liquid storage component, the connecting component, the puncture component, the negative pressure control component and the air intake control component are all transparent structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural diagram of an automatic rapid liquid extraction device provided in one embodiment of the utility model.

[0024] Figure 2 yes Figure 1 Structural diagram of the connecting piece and its components.

[0025] Figure 3 yes Figure 1 Structural diagram of the piercing member.

[0026] Figure 4 yes Figure 1 Structural diagram of the air intake control assembly.

[0027] Figure 5 yes Figure 1 Structural diagram of the air filter assembly.

[0028] Figure 6 yes Figure 1 Structural diagram of the connection between the automatic rapid liquid extraction device and the infusion bag.

[0029] Figure 7 yes Figure 1 Structural diagram of the automatic rapid liquid extraction device connected to the infusion bottle.

[0030] Description of reference numerals:

[0031] 100. Automatic rapid liquid extraction device; 101. Infusion bag; 102. Infusion bottle;

[0032] 10. Liquid storage part; 11. Scale;

[0033] 20. Connecting piece; 21. Liquid inlet pipe;

[0034] 30. puncture member; 31. protective cover; 32. liquid outlet channel; 33. air inlet channel; 34. puncture tip; 35. connection part;

[0035] 40. Negative pressure control component; 41. Adjustment switch;

[0036] 50. Air intake control assembly; 51. Air intake switch; 52. Air intake port;

[0037] 60. Air filter assembly; 61. Filter screen; 62. Filter cotton. DETAILED DESCRIPTION

[0038] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.

[0039] See also Figures 1 to 3 and Figure 6 and Figure 7 The utility model provides an automatic rapid liquid extraction device 100, which is suitable for extracting liquid in an infusion bag 101 or an infusion bottle 102. The automatic rapid liquid extraction device 100 includes a liquid storage part 10, a connecting part 20, a puncture part 30, a negative pressure control component 40 and an air intake control component 50. The liquid storage part 10 is used to store the extracted liquid. The connecting part 20 is connected to the liquid storage part 10. The puncture part 30 is arranged on the connecting part 20, and is used to penetrate into the infusion bag 101 or the infusion bottle 102 to extract the liquid into the liquid storage part 10. A liquid outlet channel 32 and an air intake channel 33 are provided in the puncture part 30, and the liquid outlet channel 32 is connected to the liquid storage part 10, and the air intake channel 33 is used to supply gas to enter the infusion bottle 102. The negative pressure control component 40 is disposed on the connecting member 20, and is connected to the liquid outlet channel 32, and is used to control the size of the liquid outlet channel 32 to adjust the flow rate of the liquid entering the liquid storage member 10. The air intake control component 50 is disposed on the connecting member 20, and is connected to the air intake channel 33. By operating the air intake control component 50, the air intake channel 33 can be opened and closed, and the air intake channel 33 is inhaled to keep the pressure in the infusion bottle 102 stable.

[0040] Compared with the prior art, the automatic fast liquid extraction device 100 of the utility model is suitable for extracting liquid in an infusion bag 101 or an infusion bottle 102, and not only has a fast liquid extraction speed, but also is easy to operate. The automatic fast liquid extraction device 100 includes a liquid storage part 10, a connecting part 20, a puncture part 30, a negative pressure control component 40 and an air intake control component 50. The liquid storage part 10 is used to store the extracted liquid. The puncture part 30 is provided at one end of the connecting part 20, and the other end is connected to the liquid storage part 10. The puncture part 30 is used to penetrate the infusion bag 101 or the infusion bottle 102 to extract the liquid into the liquid storage part 10. A liquid outlet channel 32 and an air intake channel 33 are provided in the puncture part 30, the liquid outlet channel 32 is connected to the liquid storage part 10, and the air intake channel 33 is used to supply gas to enter the infusion bottle 102. The negative pressure control component 40 and the air intake control component 50 are both arranged on the connecting part 20. The negative pressure control component 40 is connected to the liquid outlet channel 32, and is used to control the size of the liquid outlet channel 32 to adjust the flow rate of the liquid entering the liquid storage part 10, so that the size of the liquid output can be adjusted according to the actual liquid extraction demand. The air intake control component 50 is connected to the air intake channel 33, and the air intake channel 33 can be opened and closed by operating the air intake control component 50. The air intake channel 33 intakes air to keep the pressure in the infusion bottle 102 stable. When extracting liquid from the infusion bag 101, the infusion bag 101 itself will adjust the volume according to the amount of liquid, and the pressure is constant without ventilation. When extracting liquid from the infusion bottle 102, since the liquid is reduced, the volume remains unchanged, and the internal pressure becomes smaller, it is necessary to open the air intake channel 33 to add air before continuing to extract liquid. The automatic rapid liquid extraction device 100 of the utility model has a fast liquid extraction speed and is easy to operate.

[0041] See also Figure 1 and Figure 2 In some optional embodiments, a liquid inlet tube 21 is provided on the connecting member 20, and the liquid inlet tube 21 extends into the liquid storage member 10. The liquid storage member 10 is a negative pressure drainage bottle. Exemplarily, the liquid storage member 10 can be made of glass material, or made of hard and transparent PVC and other materials. Before packaging, the liquid storage member 10 is pre-made into a negative pressure drainage bottle, and then sealed and stored without air intake. When in use, the infusion bag 101 / infusion bottle 102 is connected through the puncture member 30, and then the negative pressure control component 40 is adjusted so that the liquid storage member 10 can automatically absorb the liquid in the infusion bag 101 / infusion bottle 102. There is no need to suck hard, and the liquid storage member 10 can automatically and quickly suck the liquid, which improves work efficiency, saves manpower, and is easy to use.

[0042] See also Figure 1 and Figure 2In some optional embodiments, the negative pressure control component 40 includes an adjustment switch 41, one end of which extends into the liquid outlet channel 32 and can block the liquid outlet channel 32 to isolate the infusion bag 101 / infusion bottle 102 and the liquid storage part 10. The negative pressure control component 40 can be used to seal the liquid storage part 10. When in use, the adjustment switch 41 is operated to connect the liquid storage part 10 to the infusion bag 101 / infusion bottle 102 for liquid delivery. By adjusting the adjustment switch 41, the size of the liquid outlet channel 32 can be adjusted as needed, and then the speed of liquid outflow can be adjusted. When a large amount of liquid is still needed, the speed can be increased to save time. When the required amount of liquid is approached, the flow rate is reduced to achieve accurate suction and ensure the required amount of liquid is accurate. On the other hand, the connecting member 20 and the liquid storage part 10 are threadedly connected and sealed, and the connecting member 20 and the liquid storage part 10 can be sealed by a suitable seal to ensure that the negative pressure state is maintained in the liquid storage part 10, so that the liquid can be more conveniently sucked.

[0043] See also Figure 1 and Figure 2 In some optional embodiments, the liquid storage member 10, the connecting member 20, the piercing member 30, the negative pressure control assembly 40 and the air intake control assembly 50 are all transparent structures. This is to facilitate observation of the liquid extraction and ensure accurate liquid extraction. Among them, a scale 11 for measuring the liquid volume is provided on the liquid storage member 10. The scale 11 can be used to quickly, intuitively and accurately extract the amount of liquid, so that the required amount of liquid can be extracted conveniently, quickly and intuitively.

[0044] See also Figure 2 , Figure 4 and Figure 5 In some optional embodiments, the air intake control assembly 50 includes an air intake switch 51, and the air intake switch 51 is pulled or rotated to allow external gas to enter the infusion bottle 102 through the air intake channel 33. The structural shapes of the air intake control assembly 50 and the negative pressure control assembly 40 can be set according to actual use needs. When the air intake switch 51 is operated, an air inlet 52 for external gas to enter is provided on the air intake switch 51, and the air inlet channel 33 is connected through the air inlet 52 to replenish air to the infusion bottle 102, so that the pressure in the infusion bottle 102 remains consistent with the outside world. When the infusion bottle 102 can continue to discharge liquid, the air intake control assembly 50 is closed. It can be understood that the infusion bag 101 will deform during the process of conveying liquid, so that the internal pressure remains unchanged. When the infusion bag 101 is used to extract liquid, the air intake control assembly 50 is not required. On the other hand, when the puncture member 30 is puncturing and draining, part of the liquid will flow into the air inlet channel 33, but since the air inlet switch 51 is provided, the liquid will not leak.

[0045] See also Figure 2 , Figure 4 and Figure 5 In some optional embodiments, an air filter assembly 60 is provided in the air inlet switch 51, and the outside air enters the infusion bottle 102 through the air filter assembly 60. By providing the air filter assembly 60, the air entering the infusion bottle 102 from the outside is filtered, so that the air entering the infusion bottle 102 is clean, which greatly reduces the risk of liquid being contaminated by air. Exemplarily, the air filter assembly 60 may include a filter mesh 61 and a filter cotton 62 to effectively reduce the risk of air contaminating the liquid in the infusion bottle 102.

[0046] See also Figure 3 In some optional embodiments, a puncture tip 34 is provided at one end of the puncture member 30, and the puncture tip 34 facilitates the puncture member 30 to pierce the infusion bag 101 or the infusion bottle 102. A protective cover 31 is provided on the puncture tip 34. The protective cover 31 can prevent the puncture tip 34 from being contaminated, and can also better prevent the puncture tip 34 from accidentally injuring the operator. The puncture member 30 can be an integral structure with the connector 20, and the puncture member 30 can also be connected to the connector 20 through the connecting portion 35.

[0047] like Figures 1 to 7As shown, the automatic fast liquid extraction device 100 of the utility model is suitable for extracting liquid in an infusion bag 101 or an infusion bottle 102, which not only has a fast liquid extraction speed but also is easy to operate. The automatic fast liquid extraction device 100 includes a liquid storage part 10, a connecting part 20, a puncture part 30, a negative pressure control component 40 and an air intake control component 50. The liquid storage part 10 is used to store the extracted liquid. The liquid storage part 10 is a negative pressure drainage bottle, which can automatically absorb the liquid in the infusion bag 101 or the infusion bottle 102, and the operation is more convenient. The puncture part 30 is provided at one end of the connecting part 20, and the other end is connected to the liquid storage part 10. The puncture part 30 is used to penetrate the infusion bag 101 or the infusion bottle 102 to extract the liquid into the liquid storage part 10. A liquid outlet channel 32 and an air intake channel 33 are provided in the puncture part 30, and the liquid outlet channel 32 is connected to the liquid storage part 10. The air inlet channel 33 is used to supply gas to the infusion bottle 102 to ensure that the pressure inside and outside the infusion bottle 102 is consistent so that liquid can be continuously extracted. The negative pressure control component 40 and the air inlet control component 50 are both arranged on the connector 20. The negative pressure control component 40 is connected to the liquid outlet channel 32 and is used to control the size of the liquid outlet channel 32 to adjust the flow rate of the liquid entering the liquid storage part 10, so that the size of the liquid output can be adjusted according to the actual liquid extraction demand. The air inlet control component 50 is connected to the air inlet channel 33. By operating the air inlet control component 50, the air inlet channel 33 can be opened and closed. The air inlet channel 33 is inhaled to keep the pressure in the infusion bottle 102 stable. When extracting liquid from the infusion bag 101, the infusion bag 101 itself will adjust the volume according to the amount of liquid, and the pressure is constant without ventilation. When extracting liquid from the infusion bottle 102, due to the reduction of liquid, the volume remains unchanged, and the internal pressure becomes smaller, the air inlet channel 33 needs to be opened to add air to continue to extract liquid. The automatic rapid liquid pumping device 100 of the utility model has fast liquid pumping speed, high efficiency, precise pumping, convenient operation, and is safer and more reliable.

[0048] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. An automatic rapid liquid extraction device, suitable for extracting liquid from an infusion bag or infusion bottle, characterized in that: include: A liquid storage part, used for storing the extracted liquid; A connecting piece, one end of which is connected to the liquid storage piece; A piercing member is arranged on the connecting member and is used to penetrate into an infusion bag or an infusion bottle to extract liquid into the liquid storage member; a liquid outlet channel and an air inlet channel are provided in the piercing member, the liquid outlet channel is connected to the liquid storage member, and the air inlet channel is used to allow gas to enter the infusion bottle; A negative pressure control component, disposed on the connecting member and connected to the liquid outlet channel, and used to control the size of the liquid outlet channel to adjust the flow rate of the liquid entering the liquid storage member; An air intake control component is disposed on the connecting piece and is connected to the air intake passage. The air intake passage can be opened and closed by operating the air intake control component. The air intake passage is filled with air to keep the pressure in the infusion bottle stable.

2. The automatic rapid liquid extraction device according to claim 1, characterized in that: The connecting piece is provided with a liquid inlet pipe, and the liquid inlet pipe extends into the liquid storage piece.

3. The automatic rapid liquid extraction device according to claim 1, characterized in that , the liquid storage component is a negative pressure drainage bottle.

4. The automatic rapid liquid extraction device according to claim 1, characterized in that: The negative pressure control component includes an adjusting switch, one end of which extends into the liquid outlet channel and can block the liquid outlet channel to isolate the infusion bag / the infusion bottle and the liquid storage member. By operating the adjusting switch, the liquid storage member is connected to the infusion bag / the infusion bottle for liquid delivery.

5. The automatic rapid liquid extraction device according to claim 1, characterized in that: The connecting piece and the liquid storage piece are threadedly connected and sealed.

6. The automatic rapid liquid extraction device according to claim 1, characterized in that: The liquid storage member is provided with a scale for measuring the volume of the liquid.

7. The automatic rapid liquid extraction device according to claim 1, characterized in that: The air intake control component includes an air intake switch, and the air intake switch is pulled or rotated to allow external gas to enter the infusion bottle through the air intake channel.

8. The automatic rapid liquid extraction device according to claim 7, characterized in that: An air filter assembly is arranged in the air inlet switch, and the outside air enters the infusion bottle through the air filter assembly.

9. The automatic rapid liquid extraction device according to claim 1, characterized in that: A puncture tip is provided at one end of the puncture member, and the puncture tip facilitates the puncture member to pierce the infusion bag or the infusion bottle, and a protective cover is provided on the puncture tip.

10. The automatic rapid liquid extraction device according to claim 1, characterized in that: The liquid storage component, the connecting component, the puncture component, the negative pressure control component and the air intake control component are all transparent structures.

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