High negative pressure drainage bottle

Abstract

The invention relates to a high negative pressure drainage bottle which comprises a bottle body, a bottle cap connected with the bottle body in a sealed mode, a pressure adjusting bin arranged in the bottle cap, a real-time feedback bin, a drainage bin, a total pressure induction bin and a pressure adjusting assembly arranged in the pressure adjusting bin. A sealing piston of the pressure adjusting assembly is connected to the bottom of an adjusting screw in a limited mode and slidably sleeved with a pressure adjusting bin, and the bottom of the sealing piston is matched with the periphery of a communication hole, so that the communication relation between a bottle body and a bottle cap is closed in the sealed state, and along with upward movement of the sealing piston, the pressure adjusting bin is communicated with a drainage bin and a real-time feedback bin; when the pressure in the bottle body is reduced, the pressure in the bottle body can be supplemented through the pressure supplementing hole; a measuring assembly is arranged in the total pressure induction bin, and the total negative pressure value in the bottle body is fed back in real time through the measuring assembly. The drainage bottle is ingenious in structure and convenient to use, negative pressure changes in the drainage bottle can be accurately reflected, and great convenience is provided for medical staff.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a high negative pressure drainage bottle. Background Art

[0002] The high negative pressure drainage bottle uses medical foam material as the medium between the wound and the outside world, combined with a biological semi-permeable membrane to form a closed environment, and continuously suctions it with negative pressure. This technology effectively removes necrotic tissue, bacteria and secretions from the wound through continuous negative pressure suction, reduces the risk of infection, and promotes blood circulation and granulation tissue growth in the wound, accelerating the healing process. Currently, the most commonly used negative pressure drainage bottle in clinical practice is a negative pressure drainage bottle with preset negative pressure, which can provide continuous negative pressure for closed drainage and can be carried with you, making it convenient for patients to move freely during treatment.

[0003] However, existing negative pressure drainage bottles are preset with a fixed negative pressure value when they leave the factory, and are usually in the range of 85KPa to 90KPa. Different clinical surgeries require negative pressure drainage with different negative pressure values, which cannot meet the differentiated needs of different surgeries for negative pressure values, limiting their application in a variety of surgeries; and this high negative pressure level can easily lead to tissue damage or vascular aspiration, limiting the scope of clinical indications. With the entry of liquid or gas during the drainage process, the negative pressure in the preset negative pressure drainage bottle will gradually decrease until the negative pressure effect is lost, affecting the drainage effect and the stability of the clinical treatment effect.

[0004] In addition, some pressure regulating devices on the market require manual repeated pressing of the high negative pressure drainage bottle to perform the pressure regulation operation, but this is not only time-consuming and laborious, but also difficult to accurately control the pressure adjustment value. As a result, inaccurate negative pressure control can cause wound bleeding, especially when the wound itself has a tendency to bleed, which increases the risk of bleeding, and also causes unnecessary stimulation to the wound, increasing the patient's pain. Even excessive negative pressure can hinder the blood and nutrient supply to the wound, which is not conducive to the growth of granulation tissue and wound healing. In addition, the existing negative pressure drainage tubes need to be replaced frequently, which not only increases the patient's discomfort, but also increases medical costs.

[0005] Based on this, it is necessary to study a high negative pressure drainage bottle that is easy to control and adjust negative pressure, has strong adaptability, strong stability and is easy to operate. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a high negative pressure drainage bottle, which effectively solves the problems of existing drainage bottles such as inaccurate negative pressure control, insufficient real-time monitoring, and weak adaptability.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a high negative pressure drainage bottle, comprising a bottle body, a bottle cap sealed with the bottle body, a pressure regulating chamber arranged in the bottle cap, a real-time feedback chamber, a drainage chamber, and a pressure regulating assembly arranged in the pressure regulating chamber; a connecting hole is arranged at the bottom of the pressure regulating chamber, and a drainage hole and a pressure replenishing hole are respectively arranged at the upper part of the drainage chamber and the real-time feedback chamber; a real-time pressure sensor is arranged in the real-time feedback chamber; the lower part of the drainage chamber and the real-time feedback chamber are respectively connected with the lower part of the pressure regulating chamber; the pressure regulating assembly comprises an adjusting screw, a sealing piston and an adjusting screw sleeve; the adjusting screw sleeve is fixedly sleeved on the upper part of the pressure regulating chamber, and the adjusting screw The threaded connection adjusting screw sleeve has a knob on its upper part; the sealing piston is limitedly connected to the bottom of the adjusting screw and is slidably mounted in the pressure regulating chamber, the bottom of the sealing piston is adapted to the periphery of the communicating hole, thereby closing the communicating relationship between the bottle body and the bottle cap in a sealed state, and as the sealing piston moves upward, the pressure regulating chamber is connected to the drainage chamber and the real-time feedback chamber, and when the pressure in the bottle body decreases, the pressure in the bottle body can be replenished through the pressure replenishing hole; an independent total pressure sensing chamber is also provided in the bottle cap, the bottom of the total pressure sensing chamber is connected to the inner cavity of the bottle body, and the total pressure sensing chamber has a built-in measuring component, through which the total negative pressure value in the bottle body is fed back in real time.

[0008] Furthermore, a knob is fixedly installed on the top of the adjusting screw, an adjusting screw sleeve is fixed in the pressure regulating chamber, and the adjusting screw is threadedly connected to the adjusting screw sleeve; the adjusting screw is a semi-threaded screw structure.

[0009] Furthermore, the pressure regulating bin is in a columnar structure at the top and a conical structure at the bottom, and a connecting hole communicating with the inner cavity of the bottle body is opened at the center of the bottom of the pressure regulating bin body.

[0010] Furthermore, the pressure regulating assembly also includes an umbrella-shaped valve, which is fixedly mounted at the bottom of the adjusting screw, the sealing piston and the umbrella-shaped valve are clearance-matched, a guide rod extends vertically downward from the bottom of the umbrella-shaped valve, the guide rod passes downward through the sealing piston and the connecting hole to the inner cavity of the bottle body, and a gap is left between the guide rod and the connecting hole of the pressure regulating chamber body.

[0011] Furthermore, a through hole structure is opened on the bottom side wall of the pressure regulating chamber, and when the adjusting screw drives the umbrella valve and the sealing piston to move upward, the through holes on both sides are respectively connected with the drainage chamber and the real-time feedback chamber. When moving upward, the through holes on both sides are respectively connected with the drainage chamber and the real-time feedback chamber.

[0012] Furthermore, a drainage hole is provided on the upper portion of the drainage bin, which is arranged transversely and extends outwardly from the cover edge, so that the drainage hole on the drainage bottle body 1 and the external drainage pipeline can be quickly separated and connected by means of a Luer lock interface.

[0013] Furthermore, a real-time sensor is fixedly installed on the upper part of the real-time feedback bin, and the real-time feedback bin branches to form a pressure compensation channel, which is connected to the real-time feedback bin. The input end of the pressure compensation channel extends to the top of the bottle cap and is provided with a pressure compensation hole.

[0014] Furthermore, the measuring assembly includes a balloon indicator valve and an indicator rod, wherein a fixed seat is provided in the total pressure sensing chamber, the bottom of the balloon indicator valve is fixedly mounted on the fixed seat, and the top is fixedly connected to the indicator rod, the indicator rod extends axially upward and passes through the bottle cap, and the indicator rod is provided with a scale.

[0015] Furthermore, the measuring assembly includes a total pressure sensor and a sealing plug, wherein the sealing plug is used to block the connection between the inside and outside of the bottle, and the total pressure sensor is fixedly mounted on the upper end of the sealing plug, and the total pressure sensor is connected to a power supply.

[0016] Furthermore, a control cavity is provided on the bottle cap above the total pressure sensing chamber, and a main control chip, buttons, a display screen, a timer and a power supply are provided in the control cavity. The main control chip is respectively connected to the real-time sensor and the total pressure sensor signal, and displays the pressure adjustment value in real time through the display screen.

[0017] The beneficial effect of the above technical solution is: the high negative pressure drainage bottle provided by the present invention is intended to solve many pain points in the clinical negative pressure drainage process and bring better treatment effects to patients. The present invention sets a high-precision waterproof pressure sensor in the real-time feedback chamber, which can capture and feedback the pressure state changes in the bottle in real time. Through the connection with the controller, medical staff can intuitively see the real-time negative pressure value displayed on the display screen, so as to make precise adjustments as needed. This design improves the accuracy and reliability of negative pressure regulation and ensures the safety and effectiveness of treatment.

[0018] The adjusting screw in the pressure regulating assembly adopts a precision thread design, which enables medical staff to finely adjust the negative pressure when rotating. By adjusting the screw up and down, the gas channel in the pressure regulating chamber can be changed, thereby achieving precise control of the negative pressure in the bottle, meeting the different requirements of negative pressure values ​​in different treatment stages and different clinical surgeries, and improving the flexibility and pertinence of treatment.

[0019] An independent total pressure sensing chamber is set up in the total pressure monitoring area, with a built-in high-precision waterproof pressure sensor. The installed sensor can measure and display the total negative pressure value in the bottle in real time, providing medical staff with more comprehensive and accurate pressure information. This helps medical staff better judge the drainage effect and adjust the treatment plan in time.

[0020] The upper part of the drainage chamber is equipped with a Luer lock interface, which can be quickly and firmly connected and separated from the external drainage line. This design simplifies the replacement process of the drainage line, reduces the difficulty and time cost of medical staff, and also improves the stability and safety of the drainage process.

[0021] A pressure-replenishing hole and a pressure-replenishing channel are set above the real-time feedback chamber, which are connected to an external negative pressure source through an extended locking interface. When the negative pressure in the bottle is insufficient, medical staff can easily open the pressure-replenishing hole and use the external negative pressure source to perform pressure-replenishing operations. This design improves the flexibility and practicality of the equipment and ensures the smooth progress of the drainage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of an implementation method of the present invention; Figure 2 This is one of the three-dimensional structural diagrams of the bottle cap; Figure 3 The second schematic diagram of the three-dimensional structure of the bottle cap; Figure 4 It is a cross-sectional structural schematic diagram of an adjustment state of the adjustment chamber; Figure 5 is a schematic cross-sectional structural diagram of another adjustment state of the adjustment chamber; Figure 6 This is a schematic diagram of the internal structure of the regulating chamber; Figure 7 It is a schematic diagram of the three-dimensional structure of the adjusting screw; Figure 8 It is a schematic diagram of the structure of the balloon indicator valve in different states; Fig. 9 It is a schematic diagram of the connection structure between the pressure compensation channel and the real-time feedback chamber; Fig.10 It is a schematic diagram of the structure of the pressure compensation channel viewed from above; Fig.11 It is a structural schematic diagram of another embodiment of the present invention; Fig.12 It is a schematic cross-sectional structure diagram of another embodiment; Fig.13 A system connection structure diagram of another implementation method; Fig.14 This is a circuit connection diagram of the control module.

[0023] Figure numerals: 1-bottle body, 2-bottle cap, 21-cap edge, 22-connecting buckle, 23-knob, 24-control chamber, 25-pressure regulating chamber, 251-adjusting screw, 252-adjusting screw sleeve, 253-conical step, 254-umbrella valve, 255-sealing piston, 256-guide rod, 26-drainage chamber, 261-blocking cover, 27-real-time feedback chamber, 271-real-time sensor, 28-total pressure sensing chamber, 281-fixed seat, 282-balloon indicator valve, 283-indicator rod, 284-bottom hole, 29-drainage hole, 30-connecting hole, 31-pressure replenishing hole, 32-pressure replenishing channel, 33-docking hole, 40-display screen, 41-button, 42-total pressure sensor, 43-control module. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Embodiment 1, this embodiment aims to provide a high negative pressure drainage bottle, mainly for the precise adjustment and management of drainage pressure in the clinical process, the drainage bottle is preset with high negative pressure, the maximum initial vacuum negative pressure is about -95KPa, the high negative pressure drainage bottle is connected to the drainage tube, the input end of the drainage tube is connected to the drainage area in the patient's body, so that the exudate, pus and detached necrotic tissue are drained into the high negative pressure drainage bottle in a timely and thorough manner, so as to create a "zero accumulation" drainage area including the drainage tube, and the high negative pressure makes the patient's wound tightly closed to achieve the state of "internal fixation", thereby significantly shortening the wound healing time and reducing the postoperative wound infection rate of the patient. Aiming at the problems that the existing drainage bottle cannot achieve the precise adjustment of the pressure value, easily increases the risk of bleeding, affects the wound healing, and the drainage tube needs to be frequently replaced to maintain the effect, and the pressure cannot be adaptively supplemented, the present invention provides a high negative pressure drainage bottle, which realizes the real-time precise adjustment of the negative pressure in the bottle body and the real-time monitoring of the adjustment value, and realizes the purpose of supplementing the negative pressure of the external interface, effectively improving the accurate control of the pressure in the clinic.

[0025] The present embodiment provides a high negative pressure drainage bottle, comprising a bottle body 1, a bottle cap 2 sealed with the bottle body 1, a pressure regulating chamber 25 disposed in the bottle cap 2, a real-time feedback chamber 27, a drainage chamber 26, and a pressure regulating assembly disposed in the pressure regulating chamber 25; Figure 1-3 As shown, in this embodiment, the bottle body 1 is transparent, and a detachable bottle cap 2 is installed on the top of the bottle body 1. Two left and right areas are formed inside the bottle cap 2, namely, a total pressure monitoring area and a negative pressure adjustment area for the inner cavity of the bottle body 1, wherein the negative pressure adjustment area of ​​the bottle cap 2 is provided with a plurality of bins capable of real-time monitoring and adjusting the pressure in the bottle body 1. Specifically, Figure 3-6 As shown, the pressure regulating chamber 25 of this embodiment is fixedly installed in the bottle cap 2. The upper part of the pressure regulating chamber 25 is a columnar structure, and the lower part is a conical structure. A connecting hole 30 connected to the bottle body 1 is opened at the center of the bottom of the chamber body, and a pressure regulating component is provided in the pressure regulating chamber 25.

[0026] The columnar and conical structures of the pressure regulating chamber 25 of the present invention, when the high-pressure gas enters the conical part of the pressure regulating chamber 25, the gas will be accelerated due to the gradual reduction of the cross-sectional area, which helps the gas to reach the required pressure state more quickly; at the same time, the conical structure also plays a role in dispersing the airflow, making the gas more uniform during the flow process, reducing the situation of excessive or low local pressure. The close fit between the sealing piston 255 and the conical step 253 structure ensures the sealing of the gas in the pressure regulating chamber 25, reduces the disturbance of the gas in the pressure regulating chamber 25, thereby preventing the leakage of the gas during the pressure regulation process, thereby ensuring the accuracy of pressure regulation, and helping to stabilize the pressure.

[0027] like Figure 4 and Figure 6 As shown, the pressure regulating assembly in this embodiment includes an adjusting screw 251, an umbrella valve 254, a sealing piston 255 and an adjusting screw sleeve 252; the adjusting screw sleeve is fixedly installed in the upper inner part of the pressure regulating chamber 25, the adjusting screw is threadedly connected to the adjusting screw sleeve, and its top extends vertically upward to the outside of the bottle cap 2, and is adapted to be equipped with a knob 23. Furthermore, the side wall of the knob 23 is provided with anti-slip grooves, the top is provided with a pointer, and a direction arrow is provided on the top surface of the bottle cap 2, so as to facilitate the control of the screwing direction of the adjusting knob 23.

[0028] like Figure 4 and Figure 5 As shown, the umbrella valve 254 is fixedly installed at the bottom of the adjusting screw, and the sealing piston 255 is gap-matched with the umbrella valve 254. It is slidably and sealingly installed in the pressure regulating chamber 25, and the bottom of the sealing piston 255 is adapted to the conical step 253 structure at the bottom of the chamber body of the pressure regulating chamber 25, so that the sealing piston 255 can fit tightly and effectively seal. A guide rod 256 extends vertically downward from the bottom of the umbrella valve 254, and the guide rod 256 passes downward through the sealing piston 255 and the connecting hole 30 to the inner cavity of the bottle body 1, and a gap is left between the guide rod 256 and the connecting hole 30 of the chamber body of the pressure regulating chamber 25, so as to facilitate the adjustment of the pressure in the bottle body 1.

[0029] Therefore, the pressure regulating assembly of this embodiment is configured such that when the adjusting screw is turned in different directions, the umbrella valve 254 can be driven to rotate synchronously and move up and down at the same time, and the sealing piston 255 can be driven to move up and down in the pressure regulating chamber 25 by the cooperation between the umbrella valve 254 and the sealing piston 255. In the initial state, Figure 4 As shown, the bottom of the sealing piston 255 is adapted to the periphery of the connecting hole 30 in the pressure regulating chamber 25, so as to achieve effective sealing of the pressure regulating chamber 25, the drainage chamber 26 and the real-time feedback chamber 27, thereby maintaining the negative pressure value of the inner cavity of the bottle body 1; and when the sealing piston 255 moves upward, it can separate the pressure regulating chamber 25 into two chambers A and B, so as to achieve flexible regulation of different negative pressure areas.

[0030] The structure of the adjusting screw in this embodiment is as follows Figure 7 As shown, the adjusting screw is a semi-threaded screw structure, so that when the sealing piston 255 moves upward a certain distance, the chamber A in the pressure regulating chamber 25 is connected to the atmospheric pressure, while the chamber B is connected to the real-time feedback chamber 27 and the drainage chamber 26.

[0031] like Figure 3-6 As shown, in this embodiment, the real-time feedback chamber 27 and the drainage chamber 26 are respectively arranged on both sides of the pressure regulating chamber 25, wherein the upper part of the drainage chamber 26 is provided with a drainage hole 29, and the drainage hole 29 is arranged horizontally and extends outwardly from the cover edge 21. In actual application, the Luer lock interface can be used to achieve the purpose of rapid separation and connection of the drainage hole 29 on the drainage bottle body 1 and the external drainage pipeline.

[0032] See also Figure 6 A sensor slot is provided on the upper part of the real-time feedback chamber 27, and a real-time sensor 271 is fixedly installed in the sensor slot. When the pressure is adjusted by screwing the adjusting screw, as shown in FIG. Figure 5 As shown, the lower parts of the drainage chamber 26 and the real-time feedback chamber 27 are respectively connected to the lower part of the pressure regulating chamber 25, so that the negative pressure values ​​applied by the drainage hole 29 channel and the channel inside the real-time feedback chamber 27 are the same. At this time, the real-time negative pressure sensor can capture the adjusted pressure state changes and provide real-time feedback of specific values ​​to the controller, thereby making it easier for medical staff to better understand the accuracy of the negative pressure value used and effectively improve the safety of use.

[0033] like Fig. 9 and 10 As shown, a pressure compensation hole 31 is further provided on the bottle cap 2 above the real-time feedback chamber 27, and the pressure compensation hole 31 is connected to the pressure regulating chamber 25 through a pressure compensation channel 32. Specifically, the real-time feedback chamber 27 of the present invention is branched to form a pressure compensation channel 32, and the input end of the pressure compensation channel 32 is connected to the pressure compensation hole 31 on the bottle cap 2, and the pressure compensation hole 31 is normally closed in a natural state, and the output end of the pressure compensation channel 32 is connected to the feedback chamber through a docking hole 33, so that when the pressure in the inner cavity of the bottle body 1 is insufficient, the knob 23 is opened to adjust the adjusting screw to make the real-time feedback chamber 25 The chamber 27 is connected to the pressure regulating chamber 25. At this time, the external negative pressure source is connected to the pressure compensation hole 31. According to the pressure compensation hole-pressure compensation channel-docking hole-real-time feedback chamber-connecting hole-bottle body, such a circuit can be used to supplement the negative pressure value in the bottle body 1. At the same time, the total pressure in the bottle body 1 is monitored by the measuring component in the total pressure sensing chamber 28. When the expected pressure value in the bottle body 1 is reached, the adjusting screw is reversed to close the passage between the pressure regulating chamber 25 and the real-time feedback chamber 27 to maintain the pressure, and the external negative pressure source is removed. The pressure compensation hole 31 is sealed to complete the pressure compensation action.

[0034] Furthermore, in addition to being connected to the inner cavity of the bottle body 1 by the connecting hole 30, the pressure regulating chamber 25 of the present invention actually has a three-channel structure, corresponding to the through hole E, the through hole F and the through hole G (the docking hole 33), one of which is connected to the drainage chamber 26 by the through hole E. When the drainage is performed, after the pressure regulating knob 23 is turned on to adjust the available negative pressure value, the negative pressure of the pressure regulating chamber 25 draws the drainage tube liquid, and finally leads the exudate into the bottle body 1 through the drainage hole 29-drainage chamber 26-through hole E-connecting hole 30; the second channel is connected to the real-time feedback chamber 27 by the through hole F, and the precise adjustment and feedback of the real-time negative pressure is realized by the pressure sensor in the real-time feedback chamber 27; and the third channel is connected to the pressure compensation channel 32 by the through hole G, so as to achieve the purpose of supplementing the negative pressure at the external interface.

[0035] Such a configuration of the present invention can not only capture and feedback the pressure state changes in the bottle body 1 in real time, but also help medical staff to accurately understand the negative pressure value used, thereby ensuring the safety and effectiveness of treatment; and the configuration of the pressure compensation hole 31 and the pressure compensation channel 32 makes it possible to conveniently compensate the pressure through an external negative pressure source when the pressure in the cavity of the bottle body 1 is insufficient. This design improves the flexibility and practicality of the equipment.

[0036] In addition, when the device of the present invention is performing a pressure replenishing operation, since the negative pressure value in the bottle body 1 is less than the negative pressure value range suitable for suction, it is necessary to perform suction from the bottle body 1 through an external negative pressure source to increase the negative pressure value in the bottle. The suction process is bottle body-connecting hole-pressure regulating chamber-real-time feedback chamber-pressure replenishing channel-pressure replenishing hole-external negative pressure source. Compared with the existing method of directly leading a pressure replenishing channel 32 from the pressure regulating chamber 25, such a setting can not only monitor the pressure state in the bottle body 1 in real time through the sensor in the real-time feedback chamber 27, but also perform precise control during the pressure replenishing process. Since the pressure replenishing process is performed through the real-time feedback chamber 27, the pressure replenishing speed and amount can be adjusted more finely, thereby reducing the pressure fluctuation caused by pressure replenishing, avoiding pressure overshoot or undershoot caused by direct pressure replenishing, and ensuring the smoothness and accuracy of the pressure replenishing process.

[0037] Moreover, the present invention integrates the pressure-compensating channel 32 in the real-time feedback bin 27, making the device structure more compact and reducing the occupied space. The pressure-compensating hole 31 is normally closed in a natural state, which helps to reduce the risk of external contaminants entering the bottle body 1. During the pressure-compensating process, the connection is made through the specially designed pressure-compensating channel 32, which further reduces the possibility of contamination.

[0038] like Figure 2-7As shown, a total pressure monitoring area is also provided on the left side of the negative pressure regulating area. In this embodiment, an independent total pressure sensing chamber 28 is provided in the total pressure monitoring area. The bottom opening of the total pressure sensing chamber 28 is connected to the inner cavity of the bottle body 1. The total pressure sensing chamber 28 has a built-in measuring component, and the measuring component is used to feed back the total negative pressure value in the bottle body 1 in real time, so as to better implement the drainage operation and judge the real-time pressure in the bottle body 1.

[0039] Specifically, this embodiment provides a structure of a measurement component, such as Figure 6 and Figure 8 As shown, the measuring assembly includes a balloon indicator valve 282 and an indicator rod 283, wherein a fixing seat 281 is provided in the total pressure sensing chamber 28, the bottom of the balloon indicator valve 282 is fixedly mounted on the fixing seat 281, and the top is fixedly connected to the indicator rod 283, the indicator rod 283 extends axially upward and passes through the small hole on the bottle cap 2, and the indicator rod 283 is marked with a scale, so when the negative pressure in the bottle body 1 changes, the expansion and contraction of the indicator balloon can be used to drive the rise and fall of the indicator rod 283, so that the total negative pressure value in the bottle body 1 can be determined by the extension amount of the indicator rod 283 through the small hole in the bottle cap 2.

[0040] The process of total pressure feedback by indicating the ball valve in the present embodiment is as follows: when the total pressure in the drainage bottle body 1 is set at about -95KPa at the factory, the balloon indicating valve 282 is compressed to the minimum state under the negative pressure, and the indicating rod 283 is lowered. At this time, the corresponding scale of the indicating rod 283 is at the maximum scale value. As the pressure is gradually released during the drainage process, the total negative pressure in the drainage bottle decreases. Figure 4 , Figure 5 and Figure 8 As shown, at this time, the balloon indicator valve 282 gradually rises under the effect of the negative pressure reduction, and at the same time drives the indicator rod 283 to rise synchronously. At this time, the medical staff can clearly judge the total negative pressure value in the bottle body 1 by observing the changes in the scale value on the indicator rod 283.

[0041] The measuring component of this embodiment has an ingenious structure, a simple principle, and is easy to use. Medical staff can intuitively understand the negative pressure value in the bottle body 1 without using complex measuring instruments. As the negative pressure changes, the indicator rod 283 will move in real time, ensuring that medical staff can understand the pressure status in the bottle body 1 in a timely manner. It is easy to install and maintain, reducing the difficulty and cost of use.

[0042] Working principle description: The high negative pressure drainage bottle provided in this embodiment includes the following three states when actually used: (1) During normal drainage operation, the drainage hole of the drainage bottle is firmly connected to the external drainage tube through the Luer lock interface to ensure that there is no leakage at the connection to avoid loss of negative pressure and weakening of the drainage effect. The other end of the external drainage tube is properly connected to the patient's wound to ensure that the drainage tube is unobstructed without bending, twisting or pressure to ensure the drainage effect. In the initial state, the bottom of the sealing piston is adapted to the surrounding of the connecting hole, so that the connection between the bottle body and the bottle cap is closed in the sealed state. When draining, the adjusting screw is turned to drive the sealing piston to move upward, so that the pressure regulating chamber and the drainage chamber and the real-time feedback chamber are connected. The exudate from the patient's wound flows into the bottle body through the drainage chamber, the pressure regulating chamber and the connecting hole at the bottom; during the drainage process, the negative pressure value in the bottle body is monitored by the sensor in the real-time feedback chamber to ensure that it is within a safe and effective range.

[0043] (2) Real-time negative pressure adjustment: During the drainage process, the changes in the real-time sensor and the indicating ball valve can be used to determine whether the negative pressure value in the bottle meets the treatment needs, and the sensor detection data can be fed back to the controller or display screen. When the negative pressure value deviates from the preset range, the medical staff needs to adjust the negative pressure value in the bottle by turning the adjustment screw. Rotating the adjustment screw will drive the umbrella valve and the sealing piston to move up and down in the pressure regulating chamber, thereby changing the negative pressure value in the bottle. During the adjustment process, the real-time negative pressure sensor can capture the changes in the adjusted pressure state and feed back the specific value to the controller in real time, so that the medical staff can better understand the accuracy of the negative pressure value used; after adjusting the negative pressure, the medical staff should observe and record the nature, amount and color of the drainage fluid, and verify whether the adjusted negative pressure value achieves the expected effect.

[0044] (3) During the pressure replenishment operation, the data fed back by the sensor in the real-time feedback chamber is used to determine the pressure change in the bottle body. When the negative pressure value in the bottle body is lower than the preset range, a pressure replenishment operation is required. At this time, the external negative pressure source is connected to the pressure replenishment hole on the drainage bottle, the drainage tube is closed with a stop clamp, and the pressure replenishment channel is opened (that is, the adjustment screw is rotated to connect the real-time feedback chamber with the pressure regulating chamber). The negative pressure is replenished into the bottle body through the pressure replenishment channel through the external negative pressure source. During the pressure replenishment process, the medical staff closely monitors the negative pressure value in the bottle body and controls the pressure replenishment speed and amount by adjusting the output of the external negative pressure source. When the desired negative pressure value of the bottle body is reached, the pressure replenishment channel is closed, that is, the knob of the pressure regulating chamber is closed to maintain the pressure, and the external negative pressure source is removed. At the same time, the pressure replenishment hole is sealed to ensure its sealing. The pressure replenishment operation is completed.

[0045] The high negative pressure drainage bottle provided in this embodiment has a sophisticated structural design, comprehensive functions, and is easy to assemble and disassemble. The pressure in the bottle can be accurately adjusted by screwing the adjusting screw to meet different treatment needs. The setting of the sensor helps medical staff to accurately understand the negative pressure value used, thereby ensuring the safety and effectiveness of the treatment. Medical staff can also intuitively judge the negative pressure condition in the bottle through the indicating ball valve and real-time sensor, thereby improving the flexibility and practicality of the equipment.

[0046] Embodiment 2: Based on embodiment 1, this embodiment provides another implementation structure of the measurement component.

[0047] Specific as Fig.12 As shown, the measuring component provided in this embodiment includes a total pressure sensor 42 and a sealing plug, wherein the sealing plug is fixedly mounted on a fixing seat 281 to block the connection between the inside and outside of the bottle, and the total pressure sensor 42 is fixedly mounted on the upper end of the sealing plug, and the total pressure sensor 42 is connected to the controller signal.

[0048] The above-mentioned process of total pressure feedback through the total pressure sensor 42 in this embodiment is specifically as follows: the pressure value in the bottle body 1 is transmitted to the total pressure sensor 42 through the through hole at the bottom of the total pressure sensing chamber 28, and the total pressure sensor 42 feeds back specific data in real time, and the total negative pressure value in the bottle is more intuitively observed through the controller. This embodiment monitors the total pressure value in the bottle body 1 by means of a sensor. Compared with the indicating balloon method adopted in Example 1, the total pressure sensor 42 can measure the pressure value in the bottle body 1 more real-time and accurately, reduce errors, and further improve the reliability and accuracy of the monitoring results.

[0049] Embodiment 3, based on the above-mentioned embodiments 1 and 2, in order to facilitate medical staff to observe the pressure change and the total pressure value more clearly and conveniently, this embodiment further opens a control chamber 24 at the total pressure monitoring area of ​​the bottle cap 2, and the control chamber 24 is arranged above the total pressure sensing chamber 28, and a control module 43 is arranged in the control chamber 24.

[0050] like Figure 11-14 As shown, in this embodiment, the control module 43 includes a main control chip, a button 41, a display screen 40, a timer and a power supply. The main control chip is respectively connected to the real-time sensor 271 and the total pressure sensor 42. The signals are collected in real time through the sensors at two different positions and transmitted to the main control chip, and then the negative pressure value in the bottle body 1 after adjustment is displayed on the display screen 40, so as to realize drainage and synchronously and accurately display the pressure value.

[0051] The circuit diagram of the control module 43 in this embodiment is as follows: Fig.14As shown, the control principle is as follows: the main control chip sends a trace current to the real-time sensor 271 and the total pressure sensor 42, and the two sensors correspondingly collect negative pressure signals at corresponding positions, and display the real-time negative pressure and total negative pressure values ​​on the display screen 40. In this way, the analog signal is converted into a digital signal, which can reduce the current loss and achieve the purpose of long-term power supply, thereby effectively solving the important pain points of unclear pressure value status and unclear data in clinical practice; in addition, the timer can start the automatic timing function according to the dynamic current transmitted by the sensor during real-time negative pressure drainage, so as to facilitate medical staff to count the numerical changes between pressure value and time, and then improve clinical data analysis and facilitate clinical management.

[0052] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A high negative pressure drainage bottle, characterized in that: The invention comprises a bottle body (1), a bottle cap (2) sealed with the bottle body (1), a pressure regulating chamber (25) arranged in the bottle cap (2), a real-time feedback chamber (27), a drainage chamber (26), and a pressure regulating assembly arranged in the pressure regulating chamber (25); the bottom of the pressure regulating chamber (25) is provided with a communicating hole (30); the upper parts of the drainage chamber (26) and the real-time feedback chamber (27) are respectively provided with a drainage hole (29) and a pressure replenishing hole (31); a real-time pressure sensor is arranged in the real-time feedback chamber (27); the lower parts of the drainage chamber (26) and the real-time feedback chamber (27) are respectively communicated with the lower part of the pressure regulating chamber (25); the pressure regulating assembly comprises an adjusting screw, a sealing piston (255) and an adjusting screw sleeve; the adjusting screw sleeve is fixedly sleeved on the upper part of the pressure regulating chamber (25); the adjusting screw is threadedly connected to the adjusting screw sleeve; the upper part thereof is provided with a The bottle cap (2) has a knob (23); the sealing piston (255) is limitedly connected to the bottom of the adjusting screw and is slidably sleeved in the pressure regulating chamber (25); the bottom of the sealing piston (255) is adapted to the periphery of the communicating hole (30), thereby closing the communication relationship between the bottle body (1) and the bottle cap (2) in a sealed state; as the sealing piston (255) moves upward, the pressure regulating chamber (25) is connected to the drainage chamber (26) and the real-time feedback chamber (27); and when the pressure in the bottle body (1) decreases, the pressure in the bottle body (1) can be supplemented through the pressure supplementing hole (31); an independent total pressure sensing chamber (28) is also provided in the bottle cap (2); the bottom of the total pressure sensing chamber (28) is connected to the inner cavity of the bottle body (1); the total pressure sensing chamber (28) has a built-in measuring component, and the total negative pressure value in the bottle body (1) is fed back in real time through the measuring component.

2. The high negative pressure drainage bottle according to claim 1, characterized in that: A knob (23) is fixedly mounted on the top of the adjusting screw, an adjusting screw sleeve is fixed in the pressure regulating chamber (25), and the adjusting screw and the adjusting screw sleeve are threadedly connected; the adjusting screw is a semi-threaded screw structure.

3. The high negative pressure drainage bottle according to claim 1, characterized in that: The pressure regulating bin is in a columnar structure on the top and a conical structure on the bottom. A connecting hole communicating with the inner cavity of the bottle body is provided at the center of the bottom of the pressure regulating bin.

4. The high negative pressure drainage bottle according to claim 1, characterized in that: The pressure regulating assembly further comprises an umbrella-shaped valve (254), which is fixedly mounted on the bottom of the regulating screw, the sealing piston (255) and the umbrella-shaped valve (254) are clearance-matched, a guide rod (256) extends vertically downward from the bottom of the umbrella-shaped valve (254), the guide rod (256) passes downward through the sealing piston (255) and the connecting hole (30) to the inner cavity of the bottle body (1), and a gap is left between the guide rod (256) and the connecting hole (30) of the pressure regulating chamber (25).

5. The high negative pressure drainage bottle according to claim 4, characterized in that: A through hole structure is provided on the bottom side wall of the pressure regulating chamber (25). When the adjusting screw drives the umbrella-shaped valve (254) and the sealing piston (255) to move upward, the through holes on both sides are respectively connected to the drainage chamber (26) and the real-time feedback chamber (27).

6. The high negative pressure drainage bottle according to claim 1, characterized in that: The upper portion of the drainage chamber (26) is provided with a drainage hole (29), which is arranged in a transverse direction and extends outwardly from the cover edge (21), and can utilize a Luer lock interface to achieve rapid separation and connection between the drainage hole (29) on the drainage bottle body (1) and an external drainage pipeline.

7. The high negative pressure drainage bottle according to claim 1, characterized in that: A real-time sensor (271) is fixedly installed on the upper part of the real-time feedback chamber (27). The real-time feedback chamber (27) branches to form a pressure compensation channel (32). The pressure compensation channel (32) is connected to the real-time feedback chamber (27). The input end of the pressure compensation channel (32) extends to the top of the bottle cap (2) and is provided with a pressure compensation hole (31).

8. The high negative pressure drainage bottle according to claim 1, characterized in that: The measuring assembly comprises a balloon indicating valve (282) and an indicating rod (283), wherein a fixing seat (281) is provided in the total pressure sensing chamber (28), the bottom of the balloon indicating valve (282) is fixedly mounted on the fixing seat (281), and the top is fixedly connected to the indicating rod (283), the indicating rod (283) extends axially upward and passes through the bottle cap (2), and a scale is provided on the indicating rod (283).

9. The high negative pressure drainage bottle according to claim 1, characterized in that: The measuring assembly comprises a total pressure sensor (42) and a sealing plug, wherein the sealing plug is used to block the communication between the inside of the bottle and the outside of the bottle, and the total pressure sensor (42) is fixedly mounted on the upper end of the sealing plug, and the total pressure sensor (42) is connected to a power source.

10. The high negative pressure drainage bottle according to claim 1, characterized in that: A control chamber (24) is also provided on the bottle cap (2) above the total pressure sensing chamber (28). A main control chip, a button (41), a display screen (40), a timer and a power supply are provided in the control chamber (24). The main control chip is respectively connected to the real-time sensor (271) and the total pressure sensor (42) via signals, and the pressure adjustment value is displayed in real time via the display screen (40).

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