Pressure control device and drainage apparatus

Abstract

The utility model belongs to the field of medical instruments, and provides a pressure control device and a drainage apparatus, the drainage apparatus comprises the pressure control device and a drainage tube, the pressure control device comprises a drainage bottle and a first opening and closing assembly, the drainage bottle comprises a plurality of drainage cavities and a plurality of liquid inlets communicated with the drainage cavities in a one-to-one correspondence mode, and the drainage cavities are different in capacity; a volume mark is arranged on the side wall of each drainage cavity; the first opening and closing assembly is connected with all the liquid inlets and is configured to be used for closing all the liquid inlets or opening one of the liquid inlets. The drainage bottle comprises a plurality of drainage cavities with different capacities, so that the drainage cavity with the corresponding capacity can be selected according to the estimated value of the single drainage amount, the first opening and closing assembly is used for being connected with the drainage tube of the drainage device, and the first opening and closing assembly is controlled to open the liquid inlet of the corresponding drainage cavity and close the liquid inlets of the other drainage cavities. The drainage tube of the drainage device is communicated with the drainage cavity with the required volume, and the application range is wide.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and more specifically, to a pressure control device and a drainage device. Background Art

[0002] Cerebrospinal fluid is a colorless and transparent drainage fluid that exists in the human ventricles and subarachnoid space. The total amount of cerebrospinal fluid will change with age. For example, the cerebrospinal fluid volume in infants and young children is about 10ml to 60ml, the cerebrospinal fluid volume in children is about 60ml to 90ml, and the cerebrospinal fluid volume in adults is about 120ml to 180ml. In general, the total amount of cerebrospinal fluid will increase with age. However, an acute increase in cerebrospinal fluid may indicate that the patient has acute hydrocephalus. When acute hydrocephalus occurs, the patient will experience severe headaches, nausea, vomiting, epilepsy and other symptoms. If the cerebrospinal fluid increases slowly, chronic hydrocephalus may form. Chronic hydrocephalus can cause patients to experience symptoms such as decreased cognitive function, incontinence, and unstable walking. Whether it is acute hydrocephalus or chronic hydrocephalus, a relatively simple and effective way is to perform external ventricular drainage. In addition, cerebral hemorrhage often causes increased intracranial pressure due to the space-occupying effect, which greatly increases the patient's morbidity and mortality. Although increased intracranial pressure can be treated conservatively, such as antihypertensive, hemostatic, osmotic diuretic, etc., these treatments are often not enough to deal with acute intracranial pressure surges. Timely external ventricular drainage, monitoring and management of intracranial pressure changes, and removal of blood accumulation in the ventricles can effectively solve the problem of increased intracranial pressure.

[0003] Extraventricular drainage is the most common surgical technique in neurosurgery, mainly used to treat ventricular hemorrhage, hydrocephalus, severe craniocerebral injury, etc. This surgical method mainly involves puncturing the ventricles through a burr hole in the skull or placing the front end of the drainage tube in the ventricles during open-circuit surgery to drain the effusion in the ventricles out of the body to achieve the purpose of treatment. It can quickly and effectively relieve intracranial hypertension, dredge cerebrospinal fluid circulation, discharge bloody cerebrospinal fluid, and reduce ventricular stimulation. When draining hydrocephalus, the amount of cerebrospinal fluid secreted in a single cycle is different for people of different ages, so the amount of single drainage for hydrocephalus is also different for people of different ages. For example, when the daily secretion of cerebrospinal fluid in infants and young children (0-6 years old) is about 25ml-150ml, the single drainage volume is about 13ml, when the daily secretion of cerebrospinal fluid in children (7-12 years old) is about 150ml-200ml, the single drainage volume is about 60ml, when the daily secretion of cerebrospinal fluid in adults (18 years old and above) is about 400ml-500ml, the single drainage volume is about 180ml. In addition, the excess capacity and single drainage volume are also different for different types of lesions.

[0004] At present, in extraventricular drainage, the single drainage volume is mainly recorded by the scale of the drainage bottle of the external cranial drainage device. From the above analysis, it can be seen that the single drainage volume is different for different age groups and different lesion types, and the drainage bottle capacity of the traditional external cranial drainage device is of uniform size. When faced with a single small amount of drainage demand, it is difficult to accurately measure the drainage volume of the drainage fluid. For example, the scale marking of the conventional drainage bottle starts at 30mL, while the single drainage volume of infants and young children with hydrocephalus is less than 30mL, and the single flow of young age patients with cerebral hemorrhage is less than 30mL. Therefore, it is difficult to accurately measure the existing drainage bottles, resulting in a narrow scope of application of this type of drainage device. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a pressure control device and a drain device to solve the technical problem in the prior art that the drainage bottle capacity of the drain device is of uniform size and has a narrow scope of application.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a pressure control device, comprising:

[0007] A drainage bottle, comprising a plurality of drainage cavities and a plurality of liquid inlets respectively connected to the plurality of drainage cavities in a one-to-one correspondence, the plurality of drainage cavities having different capacities, and a capacity scale being arranged on the side wall of each of the drainage cavities; and

[0008] A first opening and closing component is connected to each of the liquid inlets and is configured to close all of the liquid inlets or open one of the liquid inlets.

[0009] The beneficial effect of the pressure control device provided in the present application is that compared with the prior art, the drainage bottle of the pressure control device includes multiple drainage chambers with different capacities, so that the drainage chamber of the corresponding capacity can be selected according to the estimated value of the single drainage volume. The first opening and closing component is used to connect the drainage tube of the drain device. By controlling the first opening and closing component to open the liquid inlet of the corresponding drainage chamber and close the liquid inlet of other drainage chambers, the drainage tube of the drain device is connected to the drainage chamber of the required capacity. The application range is wide, especially for the demand of a small single drainage volume, a smaller drainage chamber can be selected, and the capacity scale of the smaller drainage chamber can measure the drainage volume more accurately. If the single drainage volume is large, a larger drainage chamber can be selected.

[0010] Optionally, the first opening and closing component includes a first multi-way tube and a plurality of liquid inlet switches, the first multi-way tube includes a plurality of first branch pipes, the plurality of first branch pipes are respectively connected to the plurality of drainage chambers one by one, and each of the first branch pipes is connected to a liquid inlet switch.

[0011] Optionally, the first opening and closing component includes a first multi-way valve and a plurality of first connecting pipes connected to the outlet of the first multi-way valve, and the plurality of first connecting pipes are respectively connected to the plurality of liquid inlets in a one-to-one correspondence.

[0012] Optionally, the drainage bottle is provided with an exhaust port, and the exhaust port is communicated with the drainage cavity.

[0013] Optionally, the minimum capacity of the drainage cavity is 5ml-30ml, and the maximum capacity of the drainage cavity is 100ml-200ml.

[0014] Optionally, the drainage bottle further includes a sampling port, and at least one of the drainage cavities is provided with the sampling port. The pressure control device further includes a sampling opening and closing component, and the sampling opening and closing component is connected to the sampling port and is configured to open or close the sampling port.

[0015] Optionally, the drainage bottle also includes a plurality of drainage ports respectively connected to the plurality of drainage chambers in a one-to-one correspondence, and the pressure control device also includes a second opening and closing component, which is connected to each of the drainage ports and is configured to close all of the drainage ports or open one of the drainage ports.

[0016] Optionally, the second opening and closing component includes a second multi-way pipe and a plurality of drainage switches, the second multi-way pipe includes a plurality of second branch pipes, the plurality of second branch pipes are respectively connected to the plurality of drainage chambers one by one, and each of the second branch pipes is connected to a drainage switch.

[0017] Optionally, the second opening and closing component includes a second multi-way valve and a plurality of second connecting pipes connected to the outlet of the second multi-way valve, and the plurality of second connecting pipes are respectively connected to the plurality of liquid discharge ports in a one-to-one correspondence.

[0018] The present application also provides a drainage device, comprising:

[0019] The pressure control device as described in any one of the above items; and

[0020] A drainage tube, one end of which is connected to the first opening and closing component, and by controlling the first opening and closing component, the drainage tube can be selectively connected to one of the liquid inlets.

[0021] The present application also provides a drainage device, comprising:

[0022] The pressure control device;

[0023] A drainage tube, one end of which is connected to the first opening and closing component, and the drainage tube can be selectively connected to one of the liquid inlets by controlling the first opening and closing component;

[0024] an extension tube, one end of which is connected to the second opening and closing assembly, and the extension tube can be selectively connected to one of the liquid discharge ports by controlling the second opening and closing assembly; and

[0025] A fluid accumulation bag is connected to the other end of the extension tube.

[0026] The beneficial effect of the drain device provided by the present application is that compared with the prior art, by adopting the above-mentioned pressure-controlled device, the drainage bottle of the above-mentioned pressure-controlled device includes multiple drainage chambers with different capacities, so that the drainage chamber of corresponding capacity can be selected according to the estimated value of the single drainage volume, and the first opening and closing component is used to connect the drainage tube of the drain device, and the drainage tube of the drain device is connected to the drainage chamber of required capacity by controlling the first opening and closing component to open the liquid inlet of the corresponding drainage chamber and close the liquid inlet of other drainage chambers. The application range is wide, especially for the demand of small single drainage volume, then a drainage chamber of smaller capacity can be selected, and the capacity scale of the drainage chamber of smaller capacity can measure the drainage volume more accurately, and if the single drainage volume is large, a drainage chamber of larger capacity can be selected. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a flow diverter provided in one embodiment of the present application;

[0029] Figure 2 for Figure 1 A partial structural schematic diagram of the diverter shown;

[0030] Figure 3 A schematic diagram of the structure of a flow diverter provided in another embodiment of the present application.

[0031] Description of main reference numerals:

[0032] 10. Drainage bottle; 11. Drainage cavity; 12. Liquid inlet; 13. Liquid discharge; 14. Sampling port; 15. Dropper; 20. First opening and closing assembly; 21. First multi-way tube; 22. Liquid inlet switch; 23. First branch pipeline; 24. First multi-way valve; 25. First connecting pipe; 30. Drainage tube; 40. Control valve; 50. Sampling opening and closing assembly; 51. Sampling tube; 52. Sampling switch; 60. Second opening and closing assembly; 61. Second multi-way tube; 62. Liquid discharge switch; 63. Second branch pipeline; 64. Second multi-way valve; 65. Second connecting pipe; 70. Extension tube; 80. Fluid bag. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] Please also read Figures 1 to 3 , the drain provided in the embodiment of the present application is now described. The drain is used to drain water, blood, bile, urine, etc. in the patient's body. For example, when the drain is used as an extracranial drain, the drain can be used to drain the patient's hydrocephalus and hemocephalus. Of course, the drain can also be used for chest and abdominal drainage, etc.

[0038] Please also read Figure 1 and Figure 2 The drain device includes a pressure control device and a drainage tube 30. The pressure control device includes a drainage bottle 10 and a first opening and closing component 20. The drainage bottle 10 includes a plurality of drainage chambers 11 and a plurality of liquid inlets 12 respectively connected to the plurality of drainage chambers 11 in a one-to-one correspondence. The plurality of drainage chambers 11 have different capacities, and a capacity scale is provided on the side wall of each drainage chamber 11. The first opening and closing component 20 is connected to each liquid inlet 12 and is configured to close all the liquid inlets 12 or open one of the liquid inlets 12.

[0039] Among them, at least a part of the peripheral side wall of each drainage cavity 11 is a transparent structure, so that medical staff can observe the drainage fluid in the drainage cavity 11 through the transparent structure and read the drainage amount value through the corresponding volume scale.

[0040] In one embodiment of the present application, the drainage bottle 10 is made entirely of a transparent material, so that medical staff can observe the drainage fluid in the drainage cavity 11 from multiple angles.

[0041] Optionally, the drainage bottle 10 is made entirely of a transparent plastic material, such as polyethylene, polypropylene, polyvinyl chloride, etc. Such materials have the characteristics of excellent chemical stability, good transparency, non-toxicity, tastelessness, corrosion resistance, and resistance to breakage.

[0042] Of course, in another embodiment, the drainage bottle 10 can also be made of a transparent material and an opaque material by a two-color injection molding process, the part formed by the transparent material is a transparent structure, the capacity scale is set on the transparent structure or close to the transparent structure, and the part formed by the opaque material is an opaque structure. By making part of the drainage bottle 10 a transparent structure and the other part an opaque structure, the drainage fluid in the drainage cavity 11 is avoided as much as possible from being exposed without affecting the reading of the drainage fluid value, so as to avoid discomfort to patients and medical staff.

[0043] Optionally, the drainage bottle 10 is a hard structure as a whole, so that the shape of the drainage bottle 10 remains unchanged before and after storing the drainage fluid, and the drainage volume value can be read more accurately, which is conducive to reducing errors.

[0044] Optionally, the drainage bottle 10 is a soft structure as a whole. When not in use, the air in the drainage cavity 11 can be squeezed out to reduce the space occupied by the drainage bottle 10, so as to facilitate storage.

[0045] When in use, the drainage bottle 10 is in a vertical state, the length of the drainage cavity 11 is extended in the vertical direction, and the capacity scale is arranged along the length direction of the drainage cavity 11, that is, the capacity scale is arranged in the vertical direction.

[0046] The multiple drainage cavities 11 are arranged side by side and are independent of each other. Specifically, the multiple drainage cavities 11 are parallel to each other, and the bottom surfaces of the multiple drainage cavities 11 are on the same horizontal plane, and / or the top surfaces of the multiple drainage cavities 11 are on the same horizontal plane. The multiple drainage cavities 11 are independent of each other means that the drainage cavities 11 are not nested with each other.

[0047] Optionally, the multiple drainage chambers 11 are parallel to each other, and the bottom surfaces of the multiple drainage chambers 11 are on the same horizontal plane, and the top surfaces of the multiple drainage chambers 11 are on the same horizontal plane. It can be understood that, due to the different capacities of different drainage chambers 11, the lengths of the multiple drainage chambers 11 are consistent in the vertical direction, and the cross-sectional sizes of the multiple drainage chambers 11 are different, wherein the cross-sectional area of ​​the drainage chamber 11 refers to the cross-sectional area obtained by cutting the drainage chamber 11 with a plane parallel to the horizontal plane when the drainage bottle 10 is in a vertical state.

[0048] In this embodiment, the cross-section of each drainage cavity 11 is circular, and the cross-sections of different drainage cavities 11 are different in size, so the diameters of different drainage cavities 11 are different. Of course, in other embodiments, the cross-section of each drainage cavity 11 can also be rectangular or triangular.

[0049] Optionally, in the vertical direction, the cross-sections of the individual drainage cavities 11 are of uniform size, so as to facilitate more accurate marking of the capacity scale on the side wall of the drainage bottle 10 .

[0050] The capacity scale set for the drainage cavity 11 with a smaller capacity has a higher measurement accuracy. For example, by using multiple drainage cavities 11 with different capacities and the same length, the capacity scale indicating the capacity of the drainage cavity 11 with a smaller capacity can be marked more densely, that is, more scales and smaller intervals between scales, so that the drainage volume value can be measured more carefully, thereby obtaining a higher measurement accuracy.

[0051] Optionally, the capacity scale provided on the side wall of the drainage cavity 11 may be a scale line, or may be a color or other indication form, as long as the drainage volume value in the drainage cavity 11 can be obtained.

[0052] One end of the drainage tube 30 is connected to the first opening and closing component 20, and the other end of the drainage tube 30 is used to be fixed on the patient's skin. By controlling the first opening and closing component 20, the drainage tube 30 can be selectively connected to one of the liquid inlets 12. Specifically, during drainage, by controlling the first opening and closing component 20, the liquid inlet 12 of one of the drainage cavities 11 is opened, and the liquid inlet 12 of the other drainage cavities 11 is closed, so that the drainage tube 30 is connected to one of the drainage cavities 11 and is isolated from the other drainage cavities 11, and the drainage fluid drained from the patient's body is transmitted to the corresponding drainage cavity 11 through the drainage tube 30, the first opening and closing component 20, and the liquid inlet 12.

[0053] In one embodiment, one end of the drainage tube 30 is fixedly connected to the first opening and closing component 20, and the fixed connection is conducive to ensuring the reliability of the connection between the drainage tube 30 and the first opening and closing component 20. In another embodiment, one end of the drainage tube 30 is detachably connected to the first opening and closing component 20, and the detachable connection is conducive to saving costs. For example, for the same lesion site of the same patient, when only the pressure control device or the drainage tube 30 needs to be replaced, the first opening and closing component 20 can be separated from the drainage tube 30 to replace the parts that need to be replaced, without replacing all of them.

[0054] It should be noted that when drainage is performed, the pressure difference between the drainage cavity 11 and the patient's lesion site can be adjusted by adjusting the hanging height of the pressure control device relative to the patient, thereby controlling the drainage speed.

[0055] Compared with the prior art, the drainage device provided by the present application has a drainage bottle 10 of a pressure-controlled device of the drainage device of the present application including a plurality of drainage chambers 11 of different capacities, so that a drainage chamber 11 of a corresponding capacity can be selected according to an estimated value of a single drainage volume. The first opening and closing component 20 is used to connect the drainage tube 30 of the drainage device. By controlling the first opening and closing component 20 to open the liquid inlet 12 of the corresponding drainage chamber 11 and close the liquid inlet 12 of other drainage chambers 11, the drainage tube 30 of the drainage device is connected to the drainage chamber 11 of a required capacity. The drainage device has a wide range of applications, especially for a small single drainage volume requirement, a smaller drainage chamber 11 can be selected, and the capacity scale of the smaller drainage chamber 11 can more accurately measure the drainage volume. If the single drainage volume is large, a larger drainage chamber 11 can be selected.

[0056] It should be noted that the single drainage volume can refer to the amount of drainage fluid drained from the patient's body in a single cycle, for example, the amount of hydrocephalus or hemocephalus continuously drained from the patient's brain within 8 consecutive hours. It can also refer to the amount of drainage fluid drained from the patient's body after each cycle, for example, the drainage volume of chest drainage performed on the patient every 8 hours.

[0057] In one embodiment of the present application, the capacity of the smallest drainage cavity 11 is 5ml-30ml, and the capacity of the largest drainage cavity 11 is 100ml-200ml. In this way, the capacity of the smallest drainage cavity 11 is greatly different from the capacity of the largest drainage cavity 11, so when the estimated value of the single drainage volume is less than 30ml, for example, when the single drainage volume of an infant with hydrocephalus is less than 30mL, the drainage cavity 11 with the smallest capacity can be selected for drainage, effectively ensuring the measurement accuracy.

[0058] Optionally, the minimum capacity of the drainage cavity 11 is 13 ml.

[0059] In one embodiment, there are two drainage chambers 11, which are arranged side by side and independent of each other. The capacity of one drainage chamber 11 is 5ml-30ml, and the capacity of the other drainage chamber 11 is 100ml-200ml. There are also two liquid inlets 12, which are connected to the two drainage chambers 11 one by one.

[0060] In another embodiment, the number of drainage chambers 11 is three, and the three drainage chambers 11 are arranged side by side and independent of each other, wherein the capacity of the smallest drainage chamber 11 is 5ml-30ml, the capacity of the largest drainage chamber 11 is 100ml-200ml, the capacity of another drainage chamber 11 is 30ml-100ml, and the number of liquid inlets 12 is also three, and the three liquid inlets 12 are connected to the three drainage chambers 11 one by one.

[0061] In one embodiment of the present application, see Figure 2 The first opening and closing component 20 includes a first multi-way pipe 21 and a plurality of liquid inlet switches 22. The first multi-way pipe 21 includes a plurality of first branch pipes 23. The plurality of first branch pipes 23 are respectively connected to the plurality of drainage cavities 11 in a one-to-one correspondence, and each first branch pipe 23 is connected to a liquid inlet switch 22.

[0062] Specifically, one end of the plurality of first branch pipes 23 is connected to the liquid inlets 12 of the plurality of drainage cavities 11 in one-to-one correspondence, and the other end is connected to the drainage tube 30. It can be understood that the drainage tube 30 is connected to the plurality of drainage cavities 11 in one-to-one correspondence through the plurality of first branch pipes 23.

[0063] In the above technical solution, the drainage tube 30 is connected to the multiple drainage chambers 11 one by one through the multiple first branch pipes 23, and a liquid inlet switch 22 is connected to each first branch pipe 23, so that the on and off of each first branch pipe 23 can be individually controlled by manipulating the liquid inlet switch 22, thereby realizing the individual control of the conduction between the drainage tube 30 and each drainage chamber 11, which is easy to operate.

[0064] Optionally, when the number of the drainage cavities 11 is two, the number of the first branch pipelines 23 is also two, and the two first branch pipelines 23 are respectively connected to the two drainage cavities 11 in a one-to-one correspondence.

[0065] Optionally, the liquid inlet switch 22 can be a stop clamp, such as a hose clamp, or a valve, such as a one-way valve or a two-way valve. Of course, the liquid inlet switch 22 can also be other components that can control the on-off of the first branch pipeline 23.

[0066] In another embodiment of the present application, please refer to Figure 3The first opening and closing component 20 includes a first multi-way valve 24 and a plurality of first connecting pipes 25 connected to the outlet of the first multi-way valve 24 , and the plurality of first connecting pipes 25 are connected to the plurality of liquid inlets 12 in a one-to-one correspondence.

[0067] Specifically, the first multi-way valve 24 has an inlet and multiple outlets, one end of the drainage tube 30 is connected to the inlet of the first multi-way valve 24, and one end of the multiple first connecting tubes 25 are respectively connected to the outlets of the first multi-way valve 24. It can be understood that the drainage tube 30 is selectively connected to any drainage cavity 11 by controlling the first multi-way valve 24.

[0068] Optionally, when the number of the drainage cavities 11 is two, the number of the first connecting pipes 25 is also two, and the first multi-way valve 24 may be, but is not limited to, a three-way valve.

[0069] In one embodiment of the present application, each liquid inlet 12 is inserted with a dropper 15, one end of the dropper 15 extends into the corresponding drainage cavity 11, and multiple first branch pipelines 23 or multiple first connecting pipes 25 are respectively connected to the multiple droppers 15 one by one.

[0070] In one embodiment of the present application, the drainage bottle 10 is provided with an exhaust port, which is communicated with the drainage cavity 11 .

[0071] Optionally, there are multiple exhaust ports, which are connected to the multiple drainage cavities 11 one by one. During drainage, the gas in the drainage cavity 11 is discharged through the exhaust ports, so that the drainage fluid can smoothly enter the drainage cavity 11.

[0072] Furthermore, an exhaust port is provided on the top of the drainage bottle 10 .

[0073] Optionally, an air filter is installed on the exhaust port, and the air filter is used to filter gas to prevent dust and the like in the external air from entering the drainage cavity 11 through the exhaust port and to prevent harmful substances in the drainage cavity 11 from being discharged to the outside through the exhaust port.

[0074] In one embodiment of the present application, see Figure 1 A control valve 40 is provided on the drainage tube 30. The control valve 40 is a three-way valve. The control valve 40 has a pressure measuring interface, and the pressure measuring interface is used to connect a pressure measuring instrument.

[0075] In one embodiment of the present application, see Figure 2 and Figure 3 The drainage bottle 10 also includes a sampling port 14 , and at least one drainage cavity 11 is provided with a sampling port 14 . The pressure control device also includes a sampling opening and closing component 50 , and the sampling opening and closing component 50 is connected to the sampling port 14 and is configured to open or close the sampling port 14 .

[0076] When sampling is required, first select at least one drainage chamber 11 provided with a sampling port 14 as the sampling chamber, and by controlling the first opening and closing component 20, the drainage tube 30 is connected to the drainage chamber 11, and drainage begins. During the drainage process, the sampling opening and closing component 50 is in a state of closing the sampling port 14. When the drainage fluid in the drainage chamber 11 reaches a preset amount, the first opening and closing component 20 is controlled to disconnect the drainage tube 30 from the drainage chamber 11, and by controlling the sampling opening and closing component 50 to open the sampling port 14, the drainage fluid in the drainage chamber 11 is discharged from the sampling port 14 to perform sampling.

[0077] In the prior art, when sampling is required, the pressure gauge is separated from the pressure measuring interface, the sampling vessel is connected to the pressure measuring interface, or the pressure measuring interface is directly exposed to the external environment to discharge the drainage fluid from the pressure measuring interface to achieve sampling. After sampling, the pressure gauge is connected to the pressure measuring interface again, which is cumbersome to operate. In addition, frequent operation and the close distance between the control valve 40 and the patient can easily increase the risk of infection for the patient. In addition, drainage work cannot be performed during sampling, which affects the drainage work. In the present application, a sampling port 14 is provided in at least one drainage cavity 11, and a sampling opening and closing assembly 50 is connected to the sampling port 14. When sampling, the sampling port 14 is opened by the sampling opening and closing assembly 50. After sampling, the sampling port 14 is closed by the sampling opening and closing assembly 50. There is no need to occupy the pressure measuring interface, so that the drainage tube 30 is not easily contaminated. In the sampling process, the drainage tube 30 can be connected to another drainage cavity 11 by controlling the first opening and closing assembly 20, so as to achieve sampling and drainage at the same time without interfering with each other.

[0078] Optionally, the drainage cavity 11 with the smallest capacity is provided with a sampling port 14 .

[0079] Furthermore, the liquid inlet 12 is arranged at the top of the drainage cavity 11, and the sampling port 14 is arranged at the bottom of the drainage cavity 11. When in use, the liquid inlet 12 and the sampling port 14 are arranged at intervals in the vertical direction, that is, the liquid inlet 12 and the sampling port 14 are isolated by air, so that it is difficult for external infection sources to cross the interval between the liquid inlet 12 and the sampling port 14 and flow back into the drainage tube 30, which is conducive to reducing the risk of infection for patients.

[0080] In one embodiment of the present application, the sampling opening and closing assembly 50 includes a sampling tube 51 and a sampling switch 52 . One end of the sampling tube 51 is connected to the sampling port 14 , and the sampling switch 52 is disposed on the sampling tube 51 .

[0081] In one embodiment of the present application, see Figure 2 The drainage bottle 10 also includes a plurality of drainage ports 13 respectively connected to the plurality of drainage chambers 11 in one-to-one correspondence. The pressure control device also includes a second opening and closing component 60. The second opening and closing component 60 is connected to each drainage port 13 and is configured to close all the drainage ports 13 or open one of the drainage ports 13.

[0082] Optionally, the drainage port 13 is disposed at the bottom of the drainage cavity 11 .

[0083] The above technical solution, by setting a drainage port 13 connected to the drainage chamber 11, and controlling the opening and closing of the drainage port 13 through the second opening and closing component 60, when the drainage fluid in the drainage chamber 11 needs to be discharged, the drainage port 13 connected to the drainage chamber 11 is opened by controlling the second opening and closing component 60, so that the drainage fluid in the drainage chamber 11 is discharged through the drainage port 13, so that the drainage chamber 11 can be reused, which is beneficial to reducing the frequency of medical staff replacing the pressure control device, thereby helping to save costs and reduce the labor intensity and infection risk of medical staff.

[0084] In addition, since the drainage port 13 may be blocked, for example, when the drainage device is used for cranial drainage, the drainage fluid contains proteins, sugars, platelets, etc., which may coagulate at the drainage port 13, causing blockage of the drainage port 13. In the embodiment of the present application, since the drainage bottle 10 includes a plurality of drainage cavities 11, when the drainage port 13 of some drainage cavities 11 is blocked, the drainage cavity 11 can be isolated from the drainage tube 30 by controlling the first opening and closing component 20, and the drainage cavity 11 with other drainage ports 13 that are not blocked can be used to continue drainage, without replacing the entire pressure control device, which is conducive to reducing costs.

[0085] Optionally, when the number of the drainage cavities 11 is two, the number of the drainage ports 13 is also two, and the two drainage ports 13 are connected to the two drainage cavities 11 in a one-to-one correspondence.

[0086] In one embodiment of the present application, please continue to refer to Figure 2 The second opening and closing component 60 includes a second multi-way tube 61 and a plurality of drainage switches 62. The second multi-way tube 61 includes a plurality of second branch pipes 63. The plurality of second branch pipes 63 are respectively connected to the plurality of drainage chambers 11 in a one-to-one correspondence, and each second branch pipe 63 is connected to a drainage switch 62.

[0087] The above technical solution is connected to multiple drainage chambers 11 one by one through multiple second branch pipes 63, and a drainage switch 62 is connected to each second branch pipe 63, so that the on and off of each second branch pipe 63 can be individually controlled by manipulating the drainage switch 62, thereby realizing individual control of the drainage work of each drainage chamber 11, which is easy to operate.

[0088] Optionally, when the number of the drainage cavities 11 is two, the number of the second branch pipes 63 is also two, and the two second branch pipes 63 are respectively connected to the two drainage cavities 11 in a one-to-one correspondence.

[0089] Optionally, the drain switch 62 can be a stop clamp, such as a hose clamp, or a valve, such as a one-way valve or a two-way valve. Of course, the drain switch 62 can also be other components that can control the on-off of the second branch pipeline 63.

[0090] In one embodiment, at least one drainage switch 62 can be configured as a three-way valve, and one of the valve ports of the drainage switch 62 can be a sampling interface, thereby eliminating the need to open a sampling port 14 on the drainage bottle 10, thereby improving the sealing performance of the drainage cavity 11 and reducing the risk of drainage fluid leakage in the drainage cavity 11.

[0091] In another embodiment of the present application, please refer to Figure 3 The second opening and closing assembly 60 includes a second multi-way valve 64 and a plurality of second connecting pipes 65 connected to the outlet of the second multi-way valve 64 , and the plurality of second connecting pipes 65 are connected to the plurality of drain ports 13 in a one-to-one correspondence.

[0092] Specifically, the second multi-way valve 64 has an outlet and multiple inlets, one end of the multiple second connecting tubes 65 are respectively connected to the multiple drainage ports 13 in a one-to-one correspondence, and the other ends of the multiple second connecting tubes 65 are respectively connected to the inlets of the second multi-way valve 64 in a one-to-one correspondence. It can be understood that the drainage port 13 of any drainage cavity 11 can be selectively opened or closed by controlling the second multi-way valve 64.

[0093] Optionally, when the number of the drainage cavities 11 is two, the number of the second connecting pipes 65 is also two, and the second multi-way valve 64 may be, but is not limited to, a three-way valve.

[0094] In one embodiment, a sampling valve can be provided on at least one second connecting tube 65, and the sampling valve is a three-way valve, and one of the valve ports of the sampling valve is a sampling interface, so that there is no need to open a sampling port 14 on the drainage bottle 10, which is beneficial to improving the sealing performance of the drainage cavity 11 and reducing the risk of leakage of the drainage fluid in the drainage cavity 11.

[0095] In one embodiment of the present application, see Figure 1 The drainage device also includes an extension tube 70 and a fluid collection bag 80. One end of the extension tube 70 is connected to the second opening and closing component 60. By controlling the second opening and closing component 60, the extension tube 70 can be selectively connected to one of the drainage ports 13; the fluid collection bag 80 is connected to the other end of the extension tube 70.

[0096] In one embodiment, one end of the extension tube 70 is fixedly connected to the second opening and closing component 60, which is conducive to ensuring the reliability of the connection between the extension tube 70 and the second opening and closing component 60. In another embodiment, one end of the extension tube 70 is detachably connected to the second opening and closing component 60, so that it can be selected whether to assemble the extension tube 70 and the fluid collection bag 80 according to the use requirements.

[0097] In one embodiment of the present application, a capacity scale is provided on the fluid effusion bag 80 for measuring the drainage fluid stored in the fluid effusion bag 80 .

[0098] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A voltage control device, characterized in that: include: A drainage bottle (10), the drainage bottle (10) comprising a plurality of drainage chambers (11) and a plurality of liquid inlets (12) respectively connected to the plurality of drainage chambers (11) in a one-to-one correspondence, the plurality of drainage chambers (11) having different capacities, and a capacity scale being arranged on the side wall of each of the drainage chambers (11); and A first opening and closing component (20), wherein the first opening and closing component (20) is connected to each of the liquid inlets (12) and is configured to close all of the liquid inlets (12) or open one of the liquid inlets (12).

2. The voltage control device according to claim 1, characterized in that: The first opening and closing component (20) comprises a first multi-way pipe (21) and a plurality of liquid inlet switches (22); the first multi-way pipe (21) comprises a plurality of first branch pipes (23); the plurality of first branch pipes (23) are respectively connected to the plurality of drainage chambers (11) in a one-to-one correspondence, and each of the first branch pipes (23) is connected to a liquid inlet switch (22).

3. The voltage control device according to claim 1, characterized in that: The first opening and closing component (20) comprises a first multi-way valve (24) and a plurality of first connecting pipes (25) connected to the outlet of the first multi-way valve (24), and the plurality of first connecting pipes (25) are respectively connected to the plurality of liquid inlets (12) in a one-to-one correspondence.

4. The voltage control device according to claim 1, characterized in that: The drainage bottle (10) is provided with an exhaust port, and the exhaust port is communicated with the drainage cavity (11).

5. The voltage control device according to claim 1, characterized in that: The smallest capacity of the drainage chamber (11) is 5ml-30ml, and the largest capacity of the drainage chamber (11) is 100ml-200ml.

6. The voltage control device according to claim 1, characterized in that: The drainage bottle (10) further comprises a sampling port (14), and at least one of the drainage chambers (11) is provided with the sampling port (14). The pressure control device further comprises a sampling opening and closing component (50), and the sampling opening and closing component (50) is connected to the sampling port (14) and is configured to open or close the sampling port (14).

7. The pressure control device according to any one of claims 1 to 6, characterized in that: The drainage bottle (10) further comprises a plurality of drainage ports (13) respectively connected to the plurality of drainage chambers (11) in a one-to-one correspondence, and the pressure control device further comprises a second opening and closing component (60), wherein the second opening and closing component (60) is connected to each of the drainage ports (13) and is configured to close all of the drainage ports (13) or open one of the drainage ports (13).

8. The voltage control device according to claim 7, characterized in that: The second opening and closing component (60) comprises a second multi-way pipe (61) and a plurality of drainage switches (62); the second multi-way pipe (61) comprises a plurality of second branch pipes (63); the plurality of second branch pipes (63) are respectively connected to the plurality of drainage chambers (11) in a one-to-one correspondence, and each of the second branch pipes (63) is connected to a drainage switch (62).

9. The voltage control device according to claim 7, characterized in that: The second opening and closing assembly (60) comprises a second multi-way valve (64) and a plurality of second connecting pipes (65) connected to the outlet of the second multi-way valve (64), and the plurality of second connecting pipes (65) are respectively connected to the plurality of liquid discharge ports (13) in a one-to-one correspondence.

10. A flow guide, characterized in that: include: The pressure control device according to any one of claims 1 to 9; and A drainage tube (30), one end of which is connected to the first opening and closing component (20), and by controlling the first opening and closing component (20), the drainage tube (30) can be selectively connected to one of the liquid inlets (12).

11. A flow guide, characterized in that: include: The pressure control device according to any one of claims 7 to 9; a drainage tube (30), one end of the drainage tube (30) being connected to the first opening and closing component (20), and the drainage tube (30) can be selectively connected to one of the liquid inlets (12) by controlling the first opening and closing component (20); an extension tube (70), one end of the extension tube (70) being connected to the second opening and closing assembly (60), and the extension tube (70) can be selectively connected to one of the liquid discharge ports (13) by controlling the second opening and closing assembly (60); and A fluid accumulation bag (80) is connected to the other end of the extension tube (70).

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