Metering digital negative pressure suction connecting device

Abstract

The invention relates to a measurable digital negative pressure suction connecting device which comprises a device shell, a negative pressure source connector is installed at one end of the device shell and used for being rapidly connected with a negative pressure pipeline provided by a tower crane, and a suction pipe connecting connector is installed at the other end of the device shell and used for being connected with a disposable sterile suction pipe or a negative pressure suction pipe. The negative pressure source connector and the suction tube connecting connector are both communicated with a fluid channel arranged in the device shell, and a metering sensing module is arranged in the fluid channel. Physical and information integration with the tower crane is achieved, the application capacity of the tower crane in the aspects of suction management and intelligent monitoring (nursing) is improved, and the application range of the tower crane is widened. Air and secretions in the suction channel can be monitored in real time, the volume of the accumulated secretions can be automatically calculated, meanwhile, relevant suction data are automatically recorded and wirelessly transmitted to a terminal, and reliable data support is provided for patient condition observation, postoperative management and body fluid balance evaluation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of negative pressure suction connection devices, in particular to a digital negative pressure suction connection device with metering function. BACKGROUND

[0002] In clinical medical care, negative pressure suction is a basic and essential operation, which is used for draining liquid during surgery, removing sputum and secretions in the airway of patients, maintaining airway patency, etc. At present, the conventional suction operation process is as follows: a sterile suction tube is connected with a physical connection head (usually a simple plastic tee or joint), and then the connection head is manually connected to the negative pressure interface (usually a negative pressure outlet on the wall or overhead tower) beside the bed.

[0003] The prior art has the following defects: 1. Unable to accurately measure: the operator (nurse or doctor) can only judge the suction effect and sputum volume by observing the properties and approximate volume of the suctioned material, combined with personal experience. This subjective judgment method cannot provide objective and quantitative data, which is not conducive to accurate assessment and recording of patient conditions (such as pulmonary edema, bleeding, etc.).

[0004] 2. Complicated operation and pollution risk: medical staff need to manually find, connect and disconnect the connection head for each suction, which not only increases the operation steps and time, but also increases the risk of interface contamination, which may cause cross infection.

[0005] 3. Data recording missing: the amount of sputum suctioned is an important clinical indicator for evaluating patient fluid balance and disease changes. The existing technology cannot automatically record the suction volume and suction frequency, resulting in the loss of valuable data and the inability to provide effective data support for the electronic medical record (EMR) system.

[0006] 4. Low integration: the simple physical connection head has single function and cannot be integrated with the modern bedside overhead tower system, failing to realize intelligent and digital management of medical equipment.

[0007] Therefore, there is an urgent need for a new connection device that can solve the above problems and realize the quantification, digitization and integration of the suction process. SUMMARY

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide a measurable digital negative pressure suction connection device to solve the following problems: Operators (nurses or doctors) can only judge the suction effect and sputum volume by observing the characteristics and approximate volume of the suctioned material, combined with personal experience. This subjective judgment method cannot provide objective, quantitative data, which is not conducive to the accurate assessment and recording of the patient's condition (such as pulmonary edema, bleeding, etc.); Operation is cumbersome and carries the risk of contamination: Each suction requires medical staff to manually find, connect, and disconnect the connector, which not only increases the number of steps and time but also increases the risk of interface contamination, potentially leading to cross-infection; Data recording is missing: The volume of suctioned sputum is an important clinical indicator for assessing the patient's fluid balance and changes in condition. Existing technologies cannot automatically record the suction volume and frequency each time, resulting in the loss of this valuable data and failing to provide effective data support for electronic medical record (EMR) systems; Low integration: Simple physical connectors have limited functionality and cannot be integrated with modern bedside pendant systems, failing to achieve the technical problem of intelligent and digital management of medical equipment.

[0009] To achieve the objective of this invention, the technical solution adopted by this invention is as follows: a metering digital negative pressure suction connection device is designed, comprising a device housing, one end of which is equipped with a negative pressure source interface for quick connection with a negative pressure pipeline provided by a crane, and the other end is equipped with a suction tube connection interface for connecting a disposable sterile suction tube or a negative pressure suction tube. Both the negative pressure source interface and the suction tube connection interface are connected to a fluid channel located inside the device housing, and a metering sensing module is provided inside the fluid channel.

[0010] Preferably, the metering sensing module includes a high-precision flow sensor and a droplet detection sensor, both of which are installed in the fluid channel for real-time monitoring of the airflow through the connector and for detecting and counting the drawn-out droplets.

[0011] Preferably, the droplet detection sensor is an optical or capacitive droplet detection sensor.

[0012] Preferably, a control host is installed on one side of the device housing. The surface of the control host is equipped with a display screen for displaying the current negative pressure value, the current suction volume, and the cumulative suction volume in real time. A microprocessor is installed inside the control host for receiving sensor data, running metering algorithms, controlling display, and communication.

[0013] Preferably, the control unit of the microprocessor is connected to a high-precision flow sensor and a droplet detection sensor to receive flow and droplet signals, and to calculate and accumulate the equivalent volume of suctioned sputum in real time.

[0014] Preferably, a circular groove is provided on the other side of the device housing, and a threaded groove is provided inside the circular groove. One end of a spring telescopic rod is installed inside the threaded groove, and the other end of the spring telescopic rod is connected to the inner ring of a bearing. An external threaded sleeve is fixed through the outer ring of the bearing. A limit plate is installed on one end of the external threaded sleeve, and its surface is connected to the thread in the threaded groove.

[0015] Preferably, the outer circumferential surface of the limiting plate is provided with a square groove, and one end of a plurality of springs is symmetrically fixed inside the square groove. The other end of the plurality of springs is connected to a connecting plate. An arc-shaped hook is integrally formed at the end of the connecting plate. A magnetic disk is fixed on the surface of the limiting plate.

[0016] Preferably, the device housing has a built-in rechargeable battery and wirelessly transmits the metering data to the central monitoring system or mobile nursing terminal at the nurse station via Bluetooth or Wi-Fi module.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The device of this invention, by setting up a high-precision flow and droplet detection sensor module, can monitor the air and secretions flowing through the channel in real time during the suction process, realize the automatic calculation and cumulative recording of secretion volume, and solve the defects of existing methods that rely entirely on subjective judgment. At the same time, the device can automatically record data such as suction time, suction volume and frequency of use, and has wireless transmission function, which can upload relevant parameters to the monitoring system or nursing terminal, providing reliable data for patient condition observation, postoperative management, and fluid balance assessment.

[0018] 2. The device of the present invention is fixedly connected to the tower crane through an interface, and can be used immediately. This avoids the cumbersome steps of finding and connecting traditional connectors, simplifies the operation process, and at the same time reduces the exposure of the interface and manual contact, thereby reducing the risk of cross-infection.

[0019] 3. The control host of the present invention is equipped with a small display screen on its surface, which can display the negative pressure value, single suction volume and cumulative suction volume in real time, so that the operator can grasp the suction situation in time and reduce operation error.

[0020] 4. The invention uses an arc-shaped hook to hang the device directly on the bedside, making it convenient for medical staff to access and reducing the steps of finding parts and repeated connections, thus improving nursing efficiency. At the same time, since the limiting plate has a magnetic plate on its surface, the entire device can be limited and fixed by magnetic attraction, which improves the convenience of limiting the device.

[0021] In summary, this invention achieves physical and information integration with the ward, enhances the ward's application capabilities in attraction management and intelligent monitoring, enriches the ward's functions, and promotes the construction of smart wards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the arc-shaped hook structure of the present invention; In the diagram: 1. Device housing; 101. Suction tube connection interface; 102. Negative pressure source interface; 2. Control host; 201. Droplet detection sensor; 202. Fluid channel; 203. High-precision flow sensor; 3. Circular groove; 301. Threaded groove; 302. Limiting plate; 303. Square groove; 304. Magnetic disk; 305. Spring; 306. Connecting plate; 307. External threaded sleeve; 308. Spring telescopic rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A meterable digital negative pressure suction connection device, see [link to example]. Figures 1 to 3 The device includes a housing 1. One end of the housing 1 is equipped with a negative pressure source interface 102 for quick connection to the negative pressure pipeline provided by the pendant tower. The other end is equipped with a suction tube connection interface 101 for connecting a disposable sterile suction tube or a negative pressure suction tube. Both the negative pressure source interface 102 and the suction tube connection interface 101 are connected to a fluid channel 202 located inside the housing 1. A metering sensor module is provided inside the fluid channel 202.

[0024] For details, see Figure 2 The metering sensing module includes a high-precision flow sensor 203 and a droplet detection sensor 201. Both the high-precision flow sensor 203 and the droplet detection sensor 201 are installed in the fluid channel 202 to monitor the airflow through the connector in real time and to detect and count the aspirated droplets. The droplet detection sensor 201 is an optical or capacitive droplet detection sensor. A control host 2 is installed on one side of the device housing 1. The surface of the control host 2 is equipped with a display screen to display the current negative pressure value, the current aspiration volume, and the cumulative aspiration volume in real time. It also has a microprocessor installed inside to receive sensor data, run metering algorithms, control the display, and communicate. The control unit of the microprocessor is connected to the high-precision flow sensor 203 and the droplet detection sensor 201 to receive flow and droplet signals and to calculate and accumulate the equivalent volume of aspirated sputum in real time.

[0025] When the patient's secretions mix with air and enter the fluid channel 202, they first pass through the high-precision flow sensor 203. The high-precision flow sensor 203 measures the change in air velocity under negative pressure suction in real time to help determine the gas flow rate during suction. When droplets pass through the detection area with the gas, the droplet detection sensor 201 (optical or capacitive) identifies the signal of each droplet passing through based on changes in light obstruction, capacitance field, etc. The flow signal and droplet signal together constitute the basic detection data for the suction process. The microprocessor in the control host 2 receives the real-time data from the sensor and matches the flow velocity change with the droplet occurrence frequency through a preset conversion model to calculate the equivalent liquid volume. Each droplet signal represents a unit volume increment. Combined with the flow velocity characteristics, the volume calculation error can be further corrected, thereby realizing the dynamic accumulation of the volume of aspirated secretions.

[0026] Further, see Figure 3 On the other side of the device housing 1, a circular groove 3 is provided. Inside the circular groove 3, a threaded groove 301 is provided. One end of a spring telescopic rod 308 is installed inside the threaded groove 301. The other end of the spring telescopic rod 308 is connected to the inner ring of a bearing. An external threaded sleeve 307 is fixed through the outer ring of the bearing. A limiting plate 302 is installed at one end of the external threaded sleeve 307, and its surface is connected to the thread in the threaded groove 301. A square groove 303 is provided on the outer circumference of the limiting plate 302. One end of a plurality of springs 305 is symmetrically fixed inside the square groove 303. The other end of the plurality of springs 305 is connected to a connecting plate 306. An arc-shaped hook is integrally formed at the end of the connecting plate 306. A magnetic disk 304 is fixed on the surface of the limiting plate 302.

[0027] When the arc hook is needed, first rotate the magnetic disk 304. The magnetic disk 304 will drive the limiting disk 302 and the external threaded sleeve 307 to rotate through the bearing, so that the external threaded sleeve 307 is screwed out of the threaded groove 301. After the external threaded sleeve 307 is screwed out of the threaded groove 301, the spring telescopic rod 308 will drive the limiting disk 302 to extend out of the circular groove 3. After the limiting disk 302 extends out of the circular groove 3, the elastic force of the spring 305 in the limiting disk 302 will drive the connecting plate 306 to extend out of the square groove 303, so that the arc hook at the end of the connecting plate 306 can be used to hang it on the tower. When magnetic attraction is needed, the magnetic disk 304 on the surface of the limiting disk 302 can be magnetically attracted to the adsorption part on the surface of the tower.

[0028] It is worth noting that, see Figure 1 and Figure 2 The device housing 1 has a built-in rechargeable battery and wirelessly transmits the metering data to the central monitoring system or mobile nursing terminal at the nurse station via Bluetooth or Wi-Fi module.

[0029] Negative pressure enters the fluid channel 202 from the negative pressure source of the pendant through the negative pressure source interface 102 of the device. The calculated single suction volume and negative pressure parameters during the suction process are processed by the microprocessor and displayed in real time on the external display screen. At the same time, the built-in Bluetooth or Wi-Fi module sends the data to the monitoring system or mobile terminal to form an electronic record for nursing staff to query and access.

[0030] When in use, medical staff first attach the arc-shaped hook on the outside of the device to the equipment beam or standard interface of the bedside pendant, or use the magnetic disk 304 to attach to the adsorption component on the surface of the pendant to keep the device in a stable position. Then, quickly connect the negative pressure source interface 102 at one end of the device housing 1 to the negative pressure pipeline of the pendant, and connect a disposable sterile suction tube or negative pressure suction tube to the other end. After the operator places the sterile suction tube into the oral cavity, airway or drainage area, suction is started. The secretions enter the fluid channel 202 of the device through the suction tube. During the suction process, the flow data and droplet signal are collected in real time by the sensor and uploaded to the control host 2. The control host 2 calculates the volume of secretions in a single suction based on the sensor output, and continuously accumulates the total suction volume. The display screen simultaneously displays the negative pressure value, the current suction volume and the cumulative volume. When the hospital monitoring system is connected, the device can automatically transmit suction data via Bluetooth or Wi-Fi.

[0031] In addition, all components designed in this invention are general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this invention does not involve improvements to the internal structure and method.

Claims

1. A metered digitalized negative pressure suction connection device comprising a device housing (1), characterized in that, The device housing (1) is provided with a negative pressure source interface (102) at one end for quick connection with the negative pressure pipeline provided by the tower, and an aspiration tube connection interface (101) at the other end for connecting a disposable sterile aspiration tube or a negative pressure aspiration tube. The negative pressure source interface (102) and the aspiration tube connection interface (101) are both in communication with a fluid channel (202) provided in the device housing (1), and the fluid channel (202) is provided with a metering sensor module inside.

2. The metered digital negative pressure suction connection device of claim 1, wherein, The metering sensor module includes a high-precision flow sensor (203) and a droplet detection sensor (201), both of which are installed in the fluid channel (202) for real-time monitoring of air flow through the connector and detection and counting of the aspirated droplets.

3. The metered digital negative pressure suction connection device of claim 2, wherein, The droplet detection sensor (201) is an optical or capacitive sensor.

4. The metered digital negative pressure suction connection device of claim 1, wherein, The device housing (1) is provided with a control host (2) on one side, and the control host (2) is provided with a display screen on the surface for real-time display of the current negative pressure value, the current aspiration volume, and the cumulative aspiration volume information. A microprocessor is installed in the control host (2) for receiving sensor data, running metering algorithms, controlling display and communication.

5. The metered digital negative pressure suction connection device of claim 4, wherein, The control unit of the microprocessor is connected with the high-precision flow sensor (203) and the droplet detection sensor (201) to receive flow and droplet signals for real-time calculation and accumulation of the equivalent volume of aspirated sputum.

6. The metered digital negative pressure suction connection apparatus of claim 1, wherein, The device housing (1) is provided with a circular groove (3) on the other side, and the circular groove (3) is provided with a threaded groove (301) inside. One end of a spring telescopic rod (308) is installed in the threaded groove (301). The other end of the spring telescopic rod (308) is connected with the inner ring of a bearing, and the outer ring of the bearing is fixed with an external threaded sleeve (307). The external threaded sleeve (307) is provided with a limiting disc (302) at one end, and the surface thereof is connected with the threads in the threaded groove (301).

7. The metered digital negative pressure suction connection device of claim 6, wherein, The limiting disc (302) is provided with a square groove (303) on the outer periphery. The square groove (303) is symmetrically fixed with one end of a plurality of springs (305) inside. The other end of the plurality of springs (305) is connected with a connecting plate body (306), and the end of the connecting plate body (306) is integrally formed with an arc-shaped hook. The surface of the limiting disc (302) is fixed with a magnetic disc body (304).

8. The metered digital negative pressure suction connection apparatus of claim 1, wherein, The device housing (1) is provided with a charging battery, and the metering data is wirelessly transmitted to the central monitoring system of the nurse station or the mobile nursing terminal through a Bluetooth or Wi-Fi module.

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