Light-proof infusion apparatus convenient to observe

Abstract

The utility model relates to the field of medical instruments, and discloses a light-proof infusion apparatus convenient to observe, which comprises a light-proof dropper and a liquid level indicating device, the liquid level indicating device comprises a transparent shell connected to the outer portion of the shading dropper in a sleeving mode, a cavity is formed between the transparent shell and the shading dropper, the cavity is divided into a first cavity and a second cavity, the bottoms of the first cavity and the second cavity are communicated, and display liquid is arranged in the first cavity and the second cavity. A display component floats on the display liquid in the first cavity, and the second cavity is communicated with the shading dropper; the liquid level indicating device comprises a pressure regulating assembly for regulating and controlling the air pressure in the two cavities; the difference of air pressure in the two cavities is adjusted through the pressure adjusting assembly, after liquid medicine in the infusion bag is completely infused, air among the infusion bag, the shading dropper and the second cavity is communicated, the air pressure in the second cavity is reduced, the height of the display assembly in the first cavity is reduced, and therefore it is indicated that the liquid medicine in the infusion bag is completely infused; a nurse can be called to take down or replace the liquid medicine, and the blood return phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a light-proof infusion device which is convenient for observation. Background Art

[0002] An infusion set is a common medical consumable. It is sterile-processed and used to establish a channel between the vein and the medicine for intravenous infusion.

[0003] At present, many drugs need to be infused in the dark during infusion in hospitals. However, the traditional light-proof infusion sets used in medical treatment are opaque. When infusing patients, it is impossible to observe the liquid level in the Murphy's dropper and the liquid level in the infusion bag, so it is impossible to judge the input of the drug solution well, which can easily lead to blood return after the drug solution is delivered. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to accurately display the liquid level in the dropper under light-proof conditions. In order to solve the above technical problem, the utility model provides a light-proof infusion device that is easy to observe, including a light-proof dropper and a liquid level indicator device, wherein one end of the light-proof dropper is connected to an infusion bag, and the other end is connected to an infusion needle;

[0005] The liquid level indicating device comprises a transparent shell sleeved on the outside of the light-shielding dropper, a cavity is formed between the transparent shell and the light-shielding dropper, the cavity is divided into a first cavity and a second cavity which are connected at the bottom, and display liquid is arranged in the first cavity and the second cavity; a display component floats on the display liquid in the first cavity, and the second cavity is connected to the light-shielding dropper;

[0006] The liquid level indicating device further comprises a pressure regulating component for regulating the internal air pressure of the first cavity and the second cavity.

[0007] Preferably, the pressure regulating assembly includes a first pressure regulating part threadedly connected to the top of the first cavity and a second pressure regulating part threadedly connected to the top of the second cavity; a first sealing plug is provided at one end of the first pressure regulating part located in the first cavity, and a second sealing plug is provided at one end of the second pressure regulating part located in the second cavity.

[0008] Preferably, an annular partition is provided in the transparent shell, the second cavity is formed between the annular partition and the light-shielding dropper, and the first cavity is formed between the annular partition and the transparent shell.

[0009] Preferably, the display component is a floating ring, and a warning mark is provided on the floating ring.

[0010] Preferably, a receiving groove for receiving the light-shielding dropper is provided in the transparent shell, and a partition straight plate is provided between the receiving groove and the transparent shell to separate the first cavity and the second cavity into semicircular shapes on the left and right.

[0011] Preferably, the transparent shell is provided with marking scales.

[0012] Preferably, it also includes a fixing device, which includes a carrying plate for carrying the infusion bag and a hanging plate for hanging the infusion bag, and a pressure sensor and an alarm are provided between the hanging plate and the carrying plate.

[0013] Preferably, the light-shielding dropper is connected to the infusion bag and the infusion needle via a light-shielding infusion tube, and a speed regulator is also provided between the light-shielding dropper and the infusion needle.

[0014] Preferably, a barrier ball is provided in the light-shielding dropper, and the diameter of the barrier ball is larger than the diameter of the outlet at the lower end of the light-shielding dropper.

[0015] Preferably, a one-way air valve is provided between the second cavity and the light-shielding dropper.

[0016] Compared with the prior art, the light-shielded infusion set provided in the embodiment of the utility model has the following beneficial effects:

[0017] The air pressure difference between the first cavity and the second cavity is adjusted in advance by the pressure regulating component, and the second cavity is connected to the light-shielding dropper. When the medicine in the infusion bag is completely discharged, the gas between the infusion bag, the light-shielding dropper and the second cavity is connected, and the air pressure in the second cavity is reduced. The display liquid moves toward the second cavity under the gas pressure in the first cavity, thereby causing the height of the display component in the first cavity to drop, thereby accurately indicating that the medicine in the infusion bag has been delivered. The nurse can be called to remove or replace the medicine to avoid the occurrence of blood return. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall view of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the fixing device part of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the liquid level indicating device part of the utility model.

[0021] In the figure: 1. Infusion bag; 2. Light-shielding dropper; 21. Barrier ball; 22. One-way air valve;

[0022] 3. Liquid level indicating device; 31. Transparent shell; 32. First cavity; 33. Second cavity; 34. Display liquid; 35. Display assembly; 351. Bell; 36. Pressure regulating assembly; 361. First pressure regulating member; 3611. First sealing plug; 362. Second pressure regulating member; 3621. Second sealing plug; 37. Annular partition;

[0023] 4. Infusion needle;

[0024] 5. Fixing device; 51. Loading plate; 52. Hanging plate; 53. Pressure sensor; 54. Warning device;

[0025] 6. Light-shielding infusion tube; 7. Speed ​​regulator. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the preferred embodiment of the utility model provides a light-shielding infusion device that is easy to observe, which includes a light-shielding dropper 2 and a liquid level indicator 3. One end of the light-shielding dropper 2 is connected to an infusion bag 1, and the other end is connected to an infusion needle 4;

[0028] The liquid level indicating device 3 includes a transparent shell 31 sleeved on the outside of the light-shielding dropper 2, a cavity is formed between the transparent shell 31 and the light-shielding dropper 2, the cavity is divided into a first cavity 32 and a second cavity 33 which are connected at the bottom, and a display liquid 34 is arranged in the first cavity 32 and the second cavity 33; a display component 35 floats on the display liquid 34 in the first cavity 32, and the second cavity 33 is connected to the light-shielding dropper 2;

[0029] The liquid level indicating device 3 further includes a pressure regulating component 36 for regulating the internal air pressure of the first cavity 32 and the second cavity 33 .

[0030] For medicines that need to be delivered in the dark, the liquid levels of the liquid in the infusion bag 1 and the light-shielding dropper 2 cannot be directly observed. Therefore, the liquid level changes in the infusion bag 1 are transmitted to the display liquid 34 through changes in air pressure, and the liquid level changes of the drug solution are represented by the liquid level changes of the display liquid 34, thereby achieving observability of the drug solution level. Specifically, the air pressure in the second cavity 33 in the first cavity 32 can be pre-adjusted by the pressure regulating component 36, thereby adjusting the liquid level height of the display liquid 34 in the first cavity 32 and the second cavity 33. In some embodiments, the air pressure in the second cavity 33 can be made higher than the air pressure in the first cavity 32, thereby making the display component 35 in the first cavity 32 at a high position. As the infusion process proceeds, when the liquid medicine in the infusion bag 1 is completely delivered, the gas in the infusion bag 1, the light-shielding dropper 2 and the second cavity 33 are connected. Since the liquid in the infusion bag 1 is completely delivered at this time, the air pressure in the infusion bag 1 is relatively low, thereby causing the air pressure in the second cavity 33 to become lower. The display liquid 34 moves toward the second cavity 33 under the action of the gas pressure in the first cavity 32, and the height of the display liquid 34 and the display component 35 in the first cavity 32 will be significantly reduced, thereby accurately indicating that the liquid medicine in the infusion bag 1 has been delivered, and the infusion can be stopped or the infusion bag 1 can be replaced. Furthermore, when the medicine liquid in the light-shielding dropper 2 is gradually delivered, the height of the display component 35 will gradually decrease until it stops. When the height of the display component 35 fluctuates significantly, the display component 35 can remind the patient that the medicine liquid in the infusion bag 1 has been delivered. When the high end of the display component 35 slowly decreases until it stops, it indicates that the medicine liquid in the light-shielding dropper 2 has also been delivered.

[0031] In fact, by adjusting the air pressure difference between the first cavity 32 and the second cavity 33, after the medicine in the infusion bag 1 is delivered, the height of the display liquid 34 in the first cavity 32 can be made to drop synchronously with the height of the medicine in the light-shielding dropper 2. That is, when the medicine in the light-shielding dropper 2 is completely delivered, the display liquid 34 in the first cavity 32 is also completely pressed into the second cavity 33 or below the zero scale, indicating that the medicine in the light-shielding dropper 2 has also been delivered.

[0032] In some embodiments, the pressure regulating assembly 36 includes a first pressure regulating component 361 threadedly connected to the top of the first cavity 32 and a second pressure regulating component 362 threadedly connected to the top of the second cavity 33; the first pressure regulating component 361 is provided with a first sealing plug 3611 at one end located in the first cavity 32, and the second pressure regulating component 362 is provided with a second sealing plug 3621 at one end located in the second cavity 33. Specifically, the first sealing plug 3611 and the second sealing plug 3621 can seal the first cavity 32 and the second cavity 33 to avoid gas leakage and pressure regulation failure, and can ensure the stability of the gas pressure between the first cavity 32 and the second cavity 33. During the pressure regulation process, the depth of the first sealing plug 3611 at the bottom of the first pressure regulating member 361 in the first cavity 32 and the depth of the second sealing plug 3621 at the bottom of the second pressure regulating member 362 in the second cavity 33 are adjusted by threading, so that the sum of the gas pressure and the hydraulic pressure in the first cavity 32 is equal to the sum of the gas pressure and the hydraulic pressure in the second cavity 33, and the height of the display liquid 34 in the first cavity 32 and the second cavity 33 is not The height of the display liquid 34 in the first cavity 32 is higher, that is, the hydraulic pressure is higher, and the air pressure in the second cavity 33 is higher. When the second cavity 33 is connected with the light-shielding dropper 2 and the infusion bag 1 by gas, due to the low air pressure of the infusion bag 1, the air pressure in the second cavity 33 will also become low, and the display liquid 34 in the first cavity 32 moves toward the second cavity 33 under the action of air pressure and gravity, which leads to a significant decrease in the height of the display liquid 34 in the first cavity 32 and the height of the display component 35, indicating that the liquid in the infusion bag 1 has been transported. When the height group of the display component 35 gradually decreases and stops, it indicates that the liquid in the light-shielding dropper 2 has also been transported.

[0033] In some embodiments, an annular partition 37 is provided in the transparent shell 31, a second cavity 33 is formed between the annular partition 37 and the light-shielding dropper 2, and a first cavity 32 is formed between the annular partition 37 and the transparent shell 31. Further, in such embodiments, the display component 35 is a floating ring, and a warning mark is provided on the floating ring.

[0034] Specifically, the annular partition 37 divides the cavity between the transparent shell 31 and the light-shielding dropper 2 into two concentric inner and outer annular cavities, which are respectively a first cavity 32 and a second cavity 33. The bottoms of the first cavity 32 and the second cavity 33 are connected and are provided with a display liquid 34. The bottom of the annular partition 37 can be connected to the transparent shell 31, and then a hole is drilled at the bottom of the annular partition 37 to achieve the connection between the first cavity 32 and the second cavity 33. Alternatively, the bottom of the annular partition 37 may not contact the inner bottom surface of the transparent shell 31, and a connecting channel is formed between the bottom surface of the annular partition 37 and the inner bottom surface of the transparent shell 31. Under the structure of the inner and outer annular cavities, the display component 35 can be designed as a floating ring with an annular structure, so that the display component 35 is larger, more comprehensive, and easier to see. At the same time, the warning mark on the floating ring can be a pattern or stripe with bright colors engraved on the surface of the floating ring to make the floating ring more eye-catching; in some other embodiments, a bell 351 can also be set in the floating ring. When the floating ring shakes due to a significant drop in height, the bell 351 in the floating ring will sound due to the shaking, thereby reminding the patient that the liquid medicine in the infusion bag 1 has been delivered.

[0035] In some other embodiments, the partition between the transparent shell 31 and the light-shielding dropper 2 is a flat plate, which divides the cavity between the transparent shell 31 and the light-shielding dropper 2 into two semicircular cavities, namely the first cavity 32 and the second cavity 33. Specifically, in this type of embodiment, the first cavity 32 and the second cavity 33 are two semicircular cavity structures on the left and right, and the partition divides the cavity between the transparent shell 31 and the light-shielding dropper 2 on the left and right; further, since the light-shielding dropper 2 is generally made of soft materials, it is difficult for the partition to completely separate the first cavity 32 and the second cavity 33 to ensure air tightness. Therefore, a hard material receiving groove is set on the outside of the light-shielding dropper 2, the light-shielding dropper 2 is placed in the receiving groove, and the partition is set between the receiving groove and the transparent shell 31 to achieve gas sealing. In addition, under this type of embodiment, the display component 35 is a float disposed in the first cavity 32, and the surface of the float is also engraved with conspicuous patterns or stripes. A bell 351 structure can also be set inside the float, which can make a sound when the height of the float drops significantly to indicate that the delivery of the drug solution in the patient's infusion bag 1 has been completed.

[0036] In some embodiments, the transparent shell 31 is provided with a scale. The transparent shell 31 is provided with multiple scales. On the one hand, during the pressure adjustment process, the height difference between the display liquid 34 in the first cavity 32 and the second cavity 33 can be accurately read, which is convenient for the pressure adjustment process, so that the display liquid 34 can more accurately represent the height of the liquid level of the medicine; on the other hand, the zero scale and the preset height scale are set according to the internal air pressure of the infusion bag 1 after the infusion and the gas volume in the light-shielding dropper 2. Before the infusion, the liquid level of the display liquid 34 in the first cavity 32 is adjusted to the preset height scale by the pressure regulating component 36, which means that the adjustment of the liquid level indicating device 3 is completed, and then the liquid level of the display liquid 34 is reduced to the zero scale and indicates that the liquid in the infusion bag 1 is delivered or the liquid in the light-shielding dropper 2 is delivered. The zero scale and the preset height scale can be set according to actual needs and actual parameters.

[0037] In some embodiments, a fixing device 5 is further included, which includes a supporting plate 51 for supporting the infusion bag 1 and a hanging plate 52 for hanging the infusion bag 1. A pressure sensor 53 and an alarm 54 are provided between the hanging plate 52 and the supporting plate 51. Specifically, the pressure sensor 53 between the hanging plate 52 and the carrying plate 51 can monitor the change of pressure. When the pressure sensor 53 monitors that the pressure drops below a certain threshold, the alarm 54 can be used to issue an alarm to indicate that the liquid in the infusion bag 1 is about to be infused, and to remind the patient to pay attention to the change in the height of the display component 35 in the liquid level indicator 3. Of course, according to the different sensitivities of the pressure sensor 53, multiple thresholds can be set to indicate different infusion states respectively. The threshold of the pressure sensor 53 can be set according to the weight of the infusion bag 1 initially monitored. The first threshold can be set to 10% of the initial weight of the infusion bag 1, that is, when the weight of the infusion bag 1 drops to 10%, the alarm 54 starts to light up green, when the weight of the infusion bag 1 drops to 5%, the alarm 54 starts to light up yellow, and when the weight of the infusion bag 1 drops to 3%, the alarm 54 starts to light up red and starts to flash to remind the patient that the liquid in the infusion bag 1 is about to be infused, and please pay attention to the changes in the liquid level indicator 3 in time. Of course, in some other embodiments, the alarm 54 also includes a sound alarm.

[0038] In some embodiments, the light-shielding dropper 2 is connected to the infusion bag 1 and the infusion needle 4 through a light-shielding infusion tube 6, and a speed regulator 7 is also provided between the light-shielding dropper 2 and the infusion needle 4. Among them, the infusion bag 1, the light-shielding dropper 2 and the light-shielding infusion tube 6 are all made of opaque materials, which can well protect the drugs and prevent the drugs from being changed by light.

[0039] In some embodiments, a blocking ball 21 is provided in the light-shielding dropper 2, and the diameter of the blocking ball 21 is larger than the diameter of the outlet at the lower end of the light-shielding dropper 2. The blocking ball 21 has a certain weight, and can timely block the outlet of the light-shielding dropper 2 after the infusion is completed and withstand the push of the venous pressure, play a sealing role, and avoid blood return due to low air pressure in the infusion bag 1.

[0040] In some embodiments, a one-way air valve 22 is provided between the second cavity 33 and the light-shielding dropper 2. Specifically, the one-way air valve 22 allows only gas in the second cavity 33 to enter the light-shielding dropper 2, while the display liquid 34 cannot enter, thereby ensuring the safety of drug delivery. In addition, there is no restriction on the position where the light-shielding dropper 2 is connected to the second cavity 33. During the infusion process, a certain level of liquid may remain in the light-shielding dropper 2. When the position where the light-shielding dropper 2 is connected to the second cavity 33 is above the liquid level in the light-shielding dropper 2, the second cavity 33 and the light-shielding dropper 2 always maintain a state of gas connection. After the liquid medicine in the infusion bag 1 is transported, the air pressure in the second cavity 33 will change rapidly, thereby causing the height of the display component 35 to be significantly reduced. In other embodiments, the position where the second cavity 33 and the light-shielding dropper 2 are connected is below the liquid level in the light-shielding dropper 2. At this time, after the liquid medicine in the infusion bag 1 is transported, the second cavity 33 has not yet been gas-connected with the infusion bag 1, and the gas pressure in the second cavity 33 will not change. Only the liquid level in the light-shielding dropper 2 is reduced. When the air pressure in the second cavity 33 is below the connecting position, the air pressure in the second cavity 33 will change. That is to say, in some embodiments, the position where the second cavity 33 is connected to the light-shielding dropper 2 can be set lower to characterize the change of the liquid level in the light-shielding dropper 2. When the height of the display component 35 fluctuates significantly, it means that the liquid level in the light-shielding dropper 2 has also dropped to the position where the second cavity 33 is connected to the light-shielding dropper 2. It is necessary to replace the infusion bag 1 or stop the drug delivery in time. In this case, the connecting position between the second cavity 33 and the light-shielding dropper 2 can be set according to demand. At the same time, a one-way air valve 22 is required to be set between the light-shielding dropper 2 and the second cavity 33. Only the gas in the second cavity 33 can move toward the light-shielding dropper 2, while the medicine liquid in the light-shielding dropper 2 and the display liquid 34 in the second cavity 33 cannot move.

[0041] In summary, the embodiment of the utility model provides a light-proof infusion device that is easy to observe. It adjusts the liquid level difference at both ends of the display liquid 34 by pre-setting the air pressure difference between the first cavity 32 and the second cavity 33 in the liquid level indicating device 3, and makes the gas between the second cavity 33 and the light-shielding dropper 2 connected. When the medicine in the infusion bag 1 is delivered, the air pressure in the second cavity 33 fluctuates significantly, which in turn causes the height of the display liquid 34 and the display component 35 in the first cavity 32 to fluctuate significantly, thereby indicating that the medicine in the infusion bag 1 has been delivered. Furthermore, as the liquid level of the medicine in the light-shielding dropper 2 gradually decreases, the height of the display component 35 in the first cavity 32 also gradually decreases. When the height of the display component 35 no longer decreases or decreases to below the preset zero scale, it indicates that the medicine in the light-shielding dropper 2 has been almost delivered or has been delivered, and the nurse can be called to replace the medicine or stop the drug delivery.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A light-proof infusion set that is easy to observe, characterized in that: It includes a light-shielding dropper and a liquid level indicator, wherein one end of the light-shielding dropper is connected to an infusion bag, and the other end is connected to an infusion needle; The liquid level indicating device comprises a transparent shell sleeved on the outside of the light-shielding dropper, a cavity is formed between the transparent shell and the light-shielding dropper, the cavity is divided into a first cavity and a second cavity which are connected at the bottom, and display liquid is arranged in the first cavity and the second cavity; a display component floats on the display liquid in the first cavity, and the second cavity is connected to the light-shielding dropper; The liquid level indicating device further comprises a pressure regulating component for regulating the internal air pressure of the first cavity and the second cavity.

2. The light-shielded infusion set for easy observation according to claim 1, characterized in that: The pressure regulating assembly includes a first pressure regulating part threadedly connected to the top of the first cavity and a second pressure regulating part threadedly connected to the top of the second cavity; a first sealing plug is provided at one end of the first pressure regulating part located in the first cavity, and a second sealing plug is provided at one end of the second pressure regulating part located in the second cavity.

3. The light-shielded infusion set for easy observation according to claim 1, characterized in that: An annular partition is arranged inside the transparent shell, the second cavity is formed between the annular partition and the light-shielding dropper, and the first cavity is formed between the annular partition and the transparent shell.

4. The light-shielded infusion set for easy observation according to claim 3, characterized in that: The display component is a floating ring, and a warning mark is provided on the floating ring.

5. The light-shielded infusion set for easy observation according to claim 1, characterized in that: A receiving groove for receiving the light-shielding dropper is provided in the transparent shell, and a partition straight plate is provided between the receiving groove and the transparent shell to separate the first cavity and the second cavity into semicircular shapes.

6. The light-shielded infusion set for easy observation according to claim 1, characterized in that: The transparent shell is provided with scales.

7. The light-shielded infusion set for easy observation according to claim 1, characterized in that: It also includes a fixing device, which includes a carrying plate for carrying the infusion bag and a hanging plate for hanging the infusion bag, and a pressure sensor and an alarm are arranged between the hanging plate and the carrying plate.

8. The light-shielded infusion set for easy observation according to claim 1, characterized in that: The light-shielding dropper is connected to the infusion bag and the infusion needle through a light-shielding infusion tube, and a speed regulator is also arranged between the light-shielding dropper and the infusion needle.

9. The light-shielded infusion set for easy observation according to claim 1, characterized in that: A blocking ball is arranged in the light-shielding dropper, and the diameter of the blocking ball is larger than the diameter of the outlet at the lower end of the light-shielding dropper.

10. The light-shielded infusion set for easy observation according to claim 1, characterized in that: A one-way air valve is provided between the second cavity and the light-shielding dropper.

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