Real-time monitoring device for closed thoracic drainage
By linking the float and the sensor, the problem of liquid level fluctuations affecting monitoring accuracy and shortening sensor lifespan is solved. This enables the reuse of sensors and multi-specification compatibility of the device, improving the convenience and economy of thoracic drainage monitoring.
Patent Information
- Application Number
- CN202511828212.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-01-02
AI Technical Summary
In existing closed thoracic drainage devices, fluid level fluctuations affect the monitoring accuracy of sensors, sensor contact with liquid leads to shortened lifespan and high cost, and they are difficult to adapt to conventional water-sealed bottles, resulting in poor applicability.
The design incorporates a float and sensor linkage, with the float driving the sensor to rise and fall outside the water-sealed bottle to avoid liquid contact. The detachable external housing and telescopic rod are adaptable to water-sealed bottles of different sizes, enabling the sensor to be reused and monitored flexibly.
It improves the lifespan and monitoring accuracy of the sensor, reduces replacement costs, enhances the applicability of the device, and is compatible with various water seal bottle specifications.
Smart Images
Figure CN121243520A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of medical equipment, and particularly relates to a real-time monitoring device for closed drainage of a thoracic cavity. BACKGROUND
[0002] Under normal circumstances, the thoracic cavity is a closed, negative pressure space, and the closed drainage is to drain the abnormal accumulation of gas or liquid in the thoracic cavity, prevent outside air from flowing into the thoracic cavity, and thus maintain the negative pressure environment. The common closed drainage is achieved through a water seal bottle. The drainage tube drawn from the thoracic cavity of a patient has its end inserted into the water seal bottle below the liquid level, which plays the role of a one-way valve and effectively isolates the outside air.
[0003] During use of the existing device, liquid level fluctuation can easily affect the monitoring of the liquid in the water seal bottle by the external sensor, and the internal sensor, which is in contact with the liquid, not only affects the service life of the sensor, but also needs to be replaced due to cross infection, which is not conducive to repeated use, causes high use cost and resource waste, and the existing monitoring device is often adapted to a specially designed water seal bottle or needs to be specially modified, such as being provided with an extra insertion hole to place the sensor inside the single-cavity water seal bottle, which is difficult to directly adapt to the single-cavity water seal bottle commonly used in clinical practice, and has poor applicability. SUMMARY
[0004] The purpose of the present application is to provide a real-time monitoring device for closed drainage of a thoracic cavity, which can make the liquid level rise and fall drive the sensor outside the water seal bottle to move up and down through linkage of a float and the sensor, avoid direct contact between the liquid and the sensor, facilitate repeated use of the sensor, and through a detachable external housing and a telescopic rod with adjustable length and angle, facilitate adaptation to existing water seal bottles of different specifications, and improve the applicability of thoracic drainage monitoring.
[0005] The technical solutions adopted by the present application are as follows: A real-time monitoring device for closed drainage of a thoracic cavity, comprising: a water seal bottle, a bottle cap being threadedly connected to the top of the water seal bottle, and a vent being provided in the bottle cap; an external housing, the external housing being arranged outside the water seal bottle, the external housing being detachably connected with the water seal bottle, a lifting rod being slidingly connected to the external housing, and a sensor being fixedly connected to the lifting rod; a lifting mechanism, the lifting mechanism being arranged on the external housing, the lifting mechanism comprising a hollow rod slidingly installed on the vent, the inside and outside of the water seal bottle being communicated through the hollow rod, a float being detachably connected to the lower end of the hollow rod, and a telescopic rod being rotatably installed between the upper end of the hollow rod and the lifting rod; The water seal bottle liquid level rises and falls to drive the float to rise and fall, so that the float drives the sensor to rise and fall.
[0006] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the hollow rod is internally provided with a channel passing through both ends, the inner side of the float is connected with the outer side of the water seal bottle through the channel, a plurality of air holes are formed in the inner wall of the lower end of the hollow rod and connected with the channel, and the inner side and the outer side of the water seal bottle are connected through the air holes and the channel.
[0007] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the telescopic rod comprises a first sliding rod rotatably connected to the hollow rod, the lifting rod is rotatably connected with a second sliding rod, the first sliding rod is slidably connected with the second sliding rod, and the second sliding rod is provided with a first scale line.
[0008] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the telescopic rod is slidably connected to the hollow rod at one end close to the hollow rod, a first limiting screw is threadedly connected to the one end of the telescopic rod close to the hollow rod, and the end of the first limiting screw is in abutting fit with the outer wall of the hollow rod.
[0009] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the telescopic rod is slidably connected to the lifting rod at one end close to the lifting rod, a second limiting screw is threadedly connected to the one end of the telescopic rod close to the lifting rod, and the end of the second limiting screw is in abutting fit with the outer wall of the lifting rod.
[0010] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the air vent is provided with a connecting sleeve, the lower end of the connecting sleeve is detachably connected with the air vent, the upper end of the connecting sleeve is fixedly connected with a first linear bearing, and the hollow rod is slidably connected with the first linear bearing.
[0011] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the outer side of the hollow rod is slidably connected with a limiting block, a third limiting screw is threadedly connected to the limiting block, and the end of the third limiting screw is in abutting fit with the outer wall of the hollow rod.
[0012] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the hollow rod is provided with a second scale line in the axial direction, and the lifting rod is provided with a third scale line in the axial direction.
[0013] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the external shell comprises two clamping plates arranged on the two sides of the water seal bottle, and a plurality of belts are connected between the two clamping plates.
[0014] As a preferred scheme of the real-time monitoring device for closed thoracic drainage, the bottom of the clamping plate is provided with a plurality of supporting feet, and the supporting feet are rotatably connected with the clamping plate.
[0015] The technical effects achieved by the present application are as follows: The float and the sensor are connected, the float inside the water seal bottle moves up and down with the liquid level, and the float also drives the sensor outside the water seal bottle to move up and down through the hollow rod, the telescopic rod and the lifting rod, so that the sensor outside the water seal bottle moves up and down with the liquid level while isolating the liquid from contacting the sensor, which not only avoids the influence of the service life of the sensor caused by the liquid contacting the sensor, but also facilitates the replacement of the low-cost float, the reuse of the high-cost sensor, the saving of resources and cost, and the up-and-down movement of the sensor with the liquid level, which facilitates the monitoring of the liquid level fluctuation and the liquid level height, and the monitoring of the liquid state at a specific position by the sensor, such as the liquid color at a fixed distance below the liquid level, thereby improving the convenience of thoracic drainage monitoring. The hollow rod and the float are designed, the inside and outside of the water seal bottle are connected through the channel and the air hole on the hollow rod to replace the original air vent to balance the air pressure inside and outside the water seal bottle, and the inside of the float is filled with water through the channel to adjust the weight of the float and the buoyancy of the float, and the hollow rod itself also serves as one of the transmission members for lifting the sensor, which realizes one rod with multiple functions, and does not need to be specially modified for the existing single-bottle-specification water seal bottle, thereby improving the applicability of thoracic drainage monitoring. The external shell and the telescopic rod are designed, the hollow rod and the lifting rod are rotatably connected with the telescopic rod, and the telescopic rod is telescopic through the sliding connection of the first sliding rod and the second sliding rod, which not only maintains the transmission effect between the hollow rod, the telescopic rod and the lifting rod after the cap drives the air vent to rotate to any direction, but also facilitates the lifting of the sensor by the float, and is suitable for water seal bottles of different length-width specifications and different positions of the air vent on the water seal bottle, the external shell is detachably connected with the water seal bottle, the external shell is repeatedly used, the water seal bottles of different length-width specifications are adapted through the belts, and the device is adapted to water seal bottles of different specifications through the external shell and the telescopic rod, without the need for special modification of the existing single-bottle-specification water seal bottle, thereby improving the applicability of thoracic drainage monitoring. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is the schematic diagram of the whole structure in the present application; Figure 2 is the schematic diagram of the water seal bottle and the breather in the present application; Figure 3 is the schematic diagram of the water seal bottle and the external shell in the present application; Figure 4 is the schematic diagram of the float and the sensor in the present application; Figure 5 is the schematic diagram of the first sliding rod and the second sliding rod in the present application; Figure 6 is the schematic diagram of the first sliding rod and the second sliding rod in the present application; Figure 7 is the schematic diagram of the hollow rod and the float in the present application; Figure 8 is the schematic diagram of the breather and the connecting sleeve in the present application; Figure 9 is the schematic diagram of the clamping plate and the bandage in the present application; Figure 10 is the schematic diagram of the breather in one orientation in the present application; Figure 11 is the schematic diagram of the breather in another orientation in the present application.
[0017] In the drawings, the components represented by the respective reference numerals are listed as follows: 10, water seal bottle; 11, bottle cap; 12, breather; 20, external shell; 21, lifting rod; 22, sensor; 30, lifting mechanism; 31, hollow rod; 32, float; 33, telescopic rod; 41, channel; 42, air hole; 51, first sliding rod; 52, second sliding rod; 53, first scale line; 54, first limit screw; 55, second limit screw; 61, connecting sleeve; 62, first linear bearing; 63, limit block; 64, third limit screw; 65, second scale line; 66, third scale line; 71, clamping plate; 72, bandage; 73, supporting leg. DETAILED DESCRIPTION
[0018] In order to make the objects and advantages of the present application more clear, the present application is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the present application, and does not strictly limit the specific protection scope requested by the present application.
[0019] Example 1 As Figures 1 to 11As shown, it is the first embodiment of the present application, which provides a real-time monitoring device for closed thoracic drainage, comprising a water seal bottle 10, the top of the water seal bottle 10 is threadedly connected with a bottle cap 11, the bottle cap 11 is provided with a vent 12; an external shell 20, the external shell 20 is arranged on the outside of the water seal bottle 10, the external shell 20 is detachably connected with the water seal bottle 10, the external shell 20 is slidably connected with a lifting rod 21, the lifting rod 21 is fixedly connected with a sensor 22; a lifting mechanism 30, the lifting mechanism 30 is arranged on the external shell 20, the lifting mechanism 30 comprises a hollow rod 31 slidably installed on the vent 12, the inside and the outside of the water seal bottle 10 are communicated through the hollow rod 31, the lower end of the hollow rod 31 is detachably connected with a float 32, and the upper end of the hollow rod 31 is rotatably connected with the lifting rod 21.
[0020] It should be noted that the water seal bottle 10 is a prior art, the water seal bottle 10 in the present application selects a single cavity specification with only one bottle body, the inner wall of the water seal bottle 10 is made of transparent material, the bottle cap 11 is further fixedly connected with a long tube, the upper end of the long tube is connected with a drainage tube (not shown in the figure) led out of the patient's chest, the lower end of the long tube is located above the inside of the bottom of the water seal bottle 10 and below the liquid level, for isolating external air from entering the patient's chest through the long tube and the drainage tube, the inside of the vent 12 is vertically through, for connecting the inside and outside of the water seal bottle 10 to balance the air pressure inside and outside the water seal bottle 10, the lifting rod 21 slides up and down along the vertical direction with the external shell 20, the sensor 22 is one or several of infrared distance sensing, optical color sensing and linear displacement sensing, the infrared distance sensing is used to indirectly measure the liquid level on the outside of the water seal bottle 10 by measuring the distance change from the sensor 22 to the fixed reference surface, if the liquid level exceeds the preset height threshold, it indicates that the liquid volume in the water seal bottle 10 may soon exceed the safe capacity limit of the water seal bottle 10, the optical color sensing is used to identify the color of the liquid inside the water seal bottle 10 on the outside of the transparent water seal bottle 10 to monitor the drainage anomaly, if the liquid color turns dark red, it indicates that active bleeding may occur, the linear displacement sensing is used to measure the up and down shaking of the float 32 by measuring the acceleration of the up and down movement of the sensor 22 to indirectly measure the fluctuation of the liquid level in the water seal bottle 10 on the outside of the water seal bottle 10, if the liquid level fluctuation suddenly disappears and lasts for a preset period of time, it indicates that the drainage tube may be blocked, the type of the sensor 22 is selected and combined according to actual needs, the top of the sensor 22 is fixedly connected with an elastic sleeve made of elastic material, the elastic sleeve is sleeved on the lower end of the hollow rod 31, so that the lower end of the hollow rod 31 and the float 32 are detachably connected together through the elastic sleeve, the external shell 20 is fixedly connected with a second linear bearing, the outer wall of the lifting rod 21 is in sliding fit with the second linear bearing, the second linear bearing is a prior art, for making the process of the lifting rod 21 sliding up and down along the external shell 20 more stable, the external shell 20 is further provided with a microprocessor, an alarm and a power supply (not shown in the figure), the microprocessor is used to receive, process and analyze the data monitored by the sensor 22, and immediately sends a command to the alarm as soon as an abnormality is judged, the alarm includes a local audible and light alarm component and a remote wireless alarm component, the local audible and light alarm component is a buzzer and an LED indicator light, for issuing sound and light to alarm to remind the personnel near the device that the drainage may have an abnormal situation, the remote wireless alarm component is a wireless transmission module, for wirelessly sending the alarm information to the central monitoring system of the nurses' station to remind the medical staff that the drainage may have an abnormal situation, the power supply is a rechargeable lithium battery, for supplying power to the sensor 22, the microprocessor and the alarm, the microprocessor, the alarm and the power supply are all prior arts, which will not be described here, the lifting rod 21, the hollow rod 31 and the telescopic rod 33 are all made of light materials,The light material is preferably polypropylene in the present application.
[0021] In use, before drainage, the water seal bottle 10 and the external shell 20 are assembled, the bottle cap 11 is unscrewed from the water seal bottle 10, the hollow rod 31 is inserted through the air inlet 12 and connected with the float 32, the bottle cap 11 is screwed on the water seal bottle 10, so that the float 32 is located inside the water seal bottle 10, and the upper end of the lifting rod 21 extends out of the air inlet 12 and is located outside the water seal bottle 10. Due to the different tightening forces, manufacturing tolerances, and different thread parameters of the water seal bottle 10, the stop position of the bottle cap 11 after tightening is prone to change, which causes the orientation of the air inlet 12 to be different after the bottle cap 11 is tightened again after liquid replacement and the water seal bottle 10 is replaced. After the external shell 20 is installed on the outside of the water seal bottle 10, the telescopic rod 33 is installed between the hollow rod 31 and the lifting rod 21. Since the hollow rod 31 and the lifting rod 21 are both rotatably installed with the telescopic rod 33, and the telescopic rod 33 is telescopic, the hollow rod 31 in the air inlet 12 with different orientations and the lifting rod 21 are connected together by adjusting the angle and length of the telescopic rod 33, which facilitates the subsequent lifting of the float 32 through the hollow rod 31, the telescopic rod 33 and the lifting rod 21 to drive the sensor 22 to lift, so as to adapt to water seal bottles 10 of different length-width specifications and different positions of the air inlet 12 on the water seal bottle 10. The external shell 20 and the water seal bottle 10 are detachably connected, and when the water seal bottle 10 needs to be replaced, the old water seal bottle 10 is removed and a new water seal bottle 10 is installed, which facilitates the reuse of the external shell 20 and saves resources and costs. During drainage, the liquid in the water seal bottle 10 rises and falls to drive the float 32 to move up and down, the float 32 drives the hollow rod 31 to move up and down, the hollow rod 31 drives the lifting rod 21 to move up and down through the telescopic rod 33, and the lifting rod 21 drives the sensor 22 to move up and down synchronously with the float 32, thereby isolating the liquid from contacting the sensor 22 while the sensor 22 moves up and down with the liquid level outside the water seal bottle 10, avoiding the liquid from contacting the sensor 22 and affecting the service life of the sensor 22. In order to avoid cross infection and replace the parts in the device that contact the liquid, the lower-cost float 32 is replaced instead of the higher-cost sensor 22, which facilitates the reuse of the sensor 22 to save resources and costs. During the monitoring of drainage, the liquid level rises and falls to drive the sensor 22 to rise and fall synchronously, which facilitates the sensor 22 to monitor the liquid level from the outside of the water seal bottle 10 and timely detect that the liquid volume in the water seal bottle 10 is about to exceed the safe capacity of the water seal bottle 10, compared with the sensor 22 in the prior art which is arranged above the liquid, avoiding the liquid level fluctuation and bubbles interfering with the ultrasonic measurement of the liquid level, and facilitating the monitoring of the liquid level fluctuation from the outside of the water seal bottle 10.And timely find that the drainage tube is blocked and the liquid level fluctuation disappears, compared with the prior art, avoid directly placing the sensor 22 inside the water seal bottle 10 in direct contact with the liquid, also facilitate monitoring the color of the liquid from the outside of the water seal bottle 10, and timely find that the thoracic drainage appears active bleeding, wherein, since the height position of the sensor 22 and the height position of the float 32 change synchronously, in order to make the sensor 22 monitor the color of the liquid at a fixed distance position below the liquid level, in the initial state, the height position of the sensor 22 is lower than the height position of the float 32, so that during the process of liquid level fluctuation, the sensor 22 always monitors the color of the liquid at a fixed distance position below the liquid level, compared with the prior art, facilitate reducing the interference of liquid level fluctuation and bubbles on the color monitoring of the sensor 22, also avoid the poor flexibility of the sensor 22 with fixed height position during color monitoring, facilitate the sensor 22 moving up and down with the liquid level to adjust the color of the liquid at different height positions monitored by the sensor 22, and since the inside and outside of the water seal bottle 10 are connected through the hollow rod 31, the hollow rod 31 not only serves as one of the transmission members for lifting the sensor 22 driven by the float 32 to facilitate the linkage between the float 32 and the sensor 22, but also replaces the original air vent 12 to balance the air pressure inside and outside the water seal bottle 10, realizes one rod with multiple functions, and without special modification such as opening holes on the existing specification water seal bottle 10, and without the need to design and produce water seal bottles 10 with special structure, it is convenient to directly adapt to the existing single bottle specification water seal bottle 10, improve the applicability of thoracic drainage monitoring.
[0022] Embodiment two Refer to Figures 1 to 11 For the second embodiment of the application, this embodiment two is based on the previous embodiment.
[0023] As Figure 4 And Figure 7 Shown, the hollow rod 31 is internally provided with a channel 41 penetrating through both ends, the inside of the float 32 and the outside of the water seal bottle 10 are connected through the channel 41, a plurality of air holes 42 are provided on the inner wall of the lower end of the hollow rod 31, the air holes 42 are connected with the channel 41, and the inside and outside of the water seal bottle 10 are connected through the air holes 42 and the channel 41.
[0024] It should be noted that the float 32 is hollow, the float 32 is made of elastic material, a sealed damping cavity is formed in the inside of the float 32, the sealed damping cavity is filled with one-third volume of high-viscosity silicone oil, when the float 32 is assembled with the hollow rod 31, it is ensured that the sealed damping cavity does not affect the buoyancy adjustment of the float 32 (the self-weight of the float 32 can still be adjusted by injecting water into the float 32 through the channel 41 of the hollow rod 31), and the high-viscosity silicone oil is used to absorb high-frequency vibration energy through viscous resistance when the liquid level fluctuates, so that the shaking amplitude of the float 32 is reduced and the frequency is slowed down, thereby reducing the frequent movement of the sensor 22 with the float 32 when the patient coughs or turns over to cause the liquid level to fluctuate violently, and reducing the generation of invalid monitoring data from the source.
[0025] According to the above structure, the inside and outside of the water seal bottle 10 are communicated through the channel 41 and the air hole 42, which is convenient to replace the air vent 12 to balance the air pressure inside and outside the water seal bottle 10, and the water seal bottle 10 is not destructively modified such as being perforated, when it is necessary to adjust the buoyancy of the float 32, the hollow rod 31 is inclined, so that the air hole 42 is directed upward to avoid the subsequent water flow from leaking out through the air hole 42, water is injected into the inside of the float 32 through the hollow rod 31, the water flows into the inside of the float 32 along the inner wall of the hollow rod 31 through the channel 41, so that the weight of the float 32 increases, since the buoyancy of the float 32 is affected by the weight of the liquid displaced by the float 32, the liquid displaced by the float 32 also increases after the weight increases, so that the buoyancy of the float 32 increases, to reduce the situation that the buoyancy of the float 32 is too small and unstable, and to improve the stability of the process of the float 32 moving up and down with the liquid level.
[0026] As shown in Figure 5 and Figure 6 , the telescopic rod 33 includes a first sliding rod 51 rotatably connected to the hollow rod 31, the lifting rod 21 is rotatably connected with a second sliding rod 52, the first sliding rod 51 is slidably connected with the second sliding rod 52, and the second sliding rod 52 is provided with a first scale line 53.
[0027] It should be noted that the first scale line 53 is etched or printed, and in the present application, printing is preferred.
[0028] According to the above structure, when it is necessary to adapt to air vents 12 with different orientations, the angle of the telescopic rod 33 is adjusted by relative rotation between the first sliding rod 51 and the hollow rod 31, and relative rotation between the second sliding rod 52 and the lifting rod 21, the length of the telescopic rod 33 is adjusted by relative sliding between the first sliding rod 51 and the second sliding rod 52, so that the telescopic rod 33 is lengthened or shortened, and the length of the telescopic rod 33 is adjusted, and different orientations of the air vent 12 are adapted by adjusting the angle and length of the telescopic rod 33.
[0029] As shown in Figure 5 and Figure 6As shown, the telescopic rod 33 is slidably connected to the hollow rod 31 at one end close to the hollow rod 31, and the one end of the telescopic rod 33 close to the hollow rod 31 is threadedly connected with a first limiting screw 54, and the end of the first limiting screw 54 is in abutting fit with the outer wall of the hollow rod 31.
[0030] It should be noted that the one end of the telescopic rod 33 close to the hollow rod 31 is provided with a first sliding hole, and the first sliding hole is slidably fitted with the hollow rod 31 in the vertical direction, and the first sliding hole is also rotatably fitted with the hollow rod 31 in the horizontal direction.
[0031] According to the above structure, when it is necessary to adjust the distance between the float 32 and the telescopic rod 33, the first limiting screw 54 is screwed to make the end of the first limiting screw 54 no longer abut against the outer wall of the hollow rod 31, and the hollow rod 31 is slid up and down along the telescopic rod 33 to change the distance between the float 32 and the telescopic rod 33, the first limiting screw 54 is screwed to make the end of the first limiting screw 54 abut against the outer wall of the hollow rod 31, and the telescopic rod 33 and the hollow rod 31 are limited, so that the distance between the float 32 and the telescopic rod 33 remains fixed, thereby adjusting the distance between the float 32 and the telescopic rod 33, and further adjusting the height position of the float 32 and the height difference between the float 32 and the sensor 22, and after the limiting of the hollow rod 31 and the telescopic rod 33 is released by screwing the first limiting screw 54, the telescopic rod 33 is rotated in the horizontal direction to make the telescopic rod 33 relatively rotate with the hollow rod 31, thereby facilitating the adaptation of the air vents 12 of different orientations.
[0032] As shown in Figure 5 and Figure 6 the telescopic rod 33 is slidably connected to the lifting rod 21 at one end close to the lifting rod 21, and the one end of the telescopic rod 33 close to the lifting rod 21 is threadedly connected with a second limiting screw 55, and the end of the second limiting screw 55 is in abutting fit with the outer wall of the lifting rod 21.
[0033] It should be noted that the one end of the telescopic rod 33 close to the lifting rod 21 is provided with a second sliding hole, and the second sliding hole is slidably fitted with the lifting rod 21 in the vertical direction, and the second sliding hole is also rotatably fitted with the lifting rod 21 in the horizontal direction.
[0034] According to the above structure, when it is necessary to adjust the distance between the sensor 22 and the telescopic rod 33, the second limiting screw 55 is screwed so that the end of the second limiting screw 55 is no longer in abutment with the outer wall of the lifting rod 21, the lifting rod 21 is slid up and down along the telescopic rod 33 to change the distance between the sensor 22 and the telescopic rod 33, the second limiting screw 55 is screwed so that the end of the second limiting screw 55 is in abutment with the outer wall of the lifting rod 21, the telescopic rod 33 and the lifting rod 21 are limited, so that the distance between the sensor 22 and the telescopic rod 33 remains fixed, thereby adjusting the distance between the sensor 22 and the telescopic rod 33, and further adjusting the height position of the sensor 22 and the height difference between the sensor 22 and the float 32, and after the sensor 22 is unscrewed to release the limiting of the lifting rod 21 and the telescopic rod 33, the telescopic rod 33 is rotated in the horizontal direction to make the telescopic rod 33 and the lifting rod 21 relatively rotate, thereby facilitating the adaptation of the air vents 12 of different orientations.
[0035] As shown in Figure 3 and Figure 8 , the air vent 12 is provided with a connecting sleeve 61, the lower end of the connecting sleeve 61 is detachably connected with the air vent 12, the upper end of the connecting sleeve 61 is fixedly connected with a first linear bearing 62, and the hollow rod 31 is in sliding fit with the first linear bearing 62.
[0036] It should be noted that the lower end of the connecting sleeve 61 is provided with an elastic part made of elastic material, the elastic part is sleeved on the upper end of the air vent 12, so that the lower end of the connecting sleeve 61 and the air vent 12 are detachably connected together through the elastic part, the first linear bearing 62 is a prior art for providing guidance and support for components that need to move linearly, reducing friction during sliding to make the up and down sliding of the hollow rod 31 more stable, which will not be described here.
[0037] According to the above structure, since the lower end of the connecting sleeve 61 is detachably connected with the air vent 12, the air vent 12 and the hollow rod 31 are detachably connected, thereby facilitating the disassembly and replacement of the hollow rod 31.
[0038] As shown in Figure 4 , Figure 5 , Figure 6 and Figure 8 , the outer side of the hollow rod 31 is slidably connected with a limiting block 63, the limiting block 63 is threadedly connected with a third limiting screw 64, and the end of the third limiting screw 64 is in abutment fit with the outer wall of the hollow rod 31.
[0039] It should be noted that the limiting block 63 is located above the connecting sleeve 61.
[0040] According to the above structure, when it is necessary to adjust the lowest height position of the float 32, the third limiting screw 64 is screwed so that the end of the third limiting screw 64 is no longer in abutment with the outer wall of the hollow rod 31, at this time, the limiting block 63 slides downward along the hollow rod 31 under the action of its own gravity until it falls on the connecting sleeve 61, so that the bottom of the limiting block 63 is in close contact with the top of the connecting sleeve 61, and the connecting sleeve 61 hinders the limiting block 63 from continuing to move downward, and the hollow rod 31 is moved up and down along the air vent 12, so that the hollow rod 31 drives the float 32 to move up and down to adjust the height position of the float 32, the third limiting screw 64 is screwed so that the end of the third limiting screw 64 is in abutment with the outer wall of the hollow rod 31, and the limiting block 63 and the hollow rod 31 are limited, and since the connecting sleeve 61 still hinders the limiting block 63 from moving downward at this time, the hollow rod 31 also no longer moves downward, so as to adjust the lowest height position of the float 32 to adapt to water seal bottles 10 of different height specifications, and improve the applicability of chest drainage monitoring. When the lowest position of the float 32 is higher than the initial liquid level height, it is convenient to trigger the movement of the float 32 and the sensor 22 after a certain amount of liquid is accumulated, and the flexibility of drainage monitoring is improved.
[0041] As shown in Figure 4 , Figure 5 and Figure 8 , the hollow rod 31 is provided with a second scale line 65 in the axial direction, and the lifting rod 21 is provided with a third scale line 66 in the axial direction.
[0042] It should be noted that the second scale line 65 and the third scale line 66 are both etched or printed, and in the present application, printing is preferred.
[0043] According to the above structure, the second scale line 65 is arranged to facilitate adjustment of the distance between the hollow rod 31 and the telescopic rod 33, thereby facilitating adjustment of the distance between the float 32 and the telescopic rod 33, and the third scale line 66 is arranged to facilitate adjustment of the distance between the lifting rod 21 and the telescopic rod 33, thereby facilitating adjustment of the distance between the sensor 22 and the telescopic rod 33.
[0044] As shown in Figure 9 , the external shell 20 includes two clamping plates 71 arranged on both sides of the water seal bottle 10, and a plurality of straps 72 are connected between the two clamping plates 71, and the two clamping plates 71 and the water seal bottle 10 are detachably connected together through the plurality of straps 72.
[0045] It should be noted that the binding band 72 includes a first connecting band tied to one side of the clamp plate 71, and a second connecting band tied to the other side of the clamp plate 71, both of which are made of cloth, and the end of the first connecting band close to the second connecting band is fixedly connected with the hook surface of the Velcro, and the end of the second connecting band close to the first connecting band is fixedly connected with the loop surface of the Velcro, and the detachable connection of the first connecting band and the second connecting band is realized through the hooking of the hook surface and the loop surface, and the distance between the first connecting band and the second connecting band is adjusted by adjusting the overlapping position of the hook surface and the loop surface, so as to adjust the overall length of the binding band 72.
[0046] According to the above structure, since the clamp plate 71 is detachably connected with the water seal bottle 10 through the binding band 72, the disassembly and replacement of the water seal bottle 10 and the external shell 20 are facilitated, and the overall length of the binding band 72 is adjusted to adapt to water seal bottles 10 of different length-width specifications, without the need for special modification of existing specifications of the water seal bottle 10, thereby improving the applicability of the chest drainage monitoring.
[0047] As shown in Figure 9 The bottom of the clamp plate 71 is provided with a plurality of supporting feet 73, and the supporting feet 73 are rotatably connected with the clamp plate 71.
[0048] It should be noted that the number of supporting feet 73 provided at the bottom of each clamp plate 71 is two, and the two supporting feet 73 are symmetrically distributed on the bottom of the clamp plate 71, and in the initial state, the two supporting feet 73 are rotated to the outside of the clamp plate 71, forming an "eight" shape.
[0049] According to the above structure, the supporting feet 73 are provided to prevent the water seal bottle 10 from tilting outward, thereby improving the stability of the device, so as to facilitate the stability of the process of the liquid level driving the float 32 and the sensor 22 to move up and down.
[0050] The working principle of the present application is that through the linkage between the float 32 and the sensor 22, the rise and fall of the liquid level in the water sealed bottle 10 drives the float 32 and the sensor 22 to move up and down synchronously, so as to monitor the liquid through the sensor 22 while isolating the liquid from contacting the sensor 22, and by replacing the lower-cost float 32 instead of the higher-cost sensor 22, the sensor 22 can be reused to save resources and cost, wherein the hollow rod 31 as one of the transmission members for driving the sensor 22 to rise and fall not only replaces the original air vent 12 to balance the air pressure inside and outside the water sealed bottle 10, but also facilitates the injection of water into the float 32 through the channel 41 to adjust the buoyancy of the float 32, realizing one rod with multiple uses, and without the need to specially modify the existing specifications of the water sealed bottle 10, at the same time, the hollow rod 31 and the lifting rod 21 are both rotationally connected with the telescopic rod 33, which is convenient for adapting to the situation of the air vent 12 in different directions due to the threaded connection between the existing water sealed bottle 10 and the bottle cap 11, through the detachable external shell 20 and the length-adjustable strap 72, the device can adapt to water sealed bottles 10 of different specifications, thereby improving the applicability of the chest drainage monitoring.
[0051] The above is only the preferred embodiment of the present application, it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements should also be considered within the scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.
Claims
1. A real-time monitoring device for a chest closed drainage, characterized in that, The utility model provides a water seal bottle liquid level sensor, including: Water seal bottle (10), the top of water seal bottle (10) is screwed with bottle lid (11), is equipped with vent (12) on bottle lid (11); External casing (20), external casing (20) is arranged in the outside of water seal bottle (10), and external casing (20) is detachably connected with water seal bottle (10), and slidingly connected with lifting rod (21) on external casing (20), and fixedly connected with sensor (22) on lifting rod (21); Lifting mechanism (30), lifting mechanism (30) is arranged on external casing (20), and lifting mechanism (30) includes hollow rod (31) slidingly installed on vent (12), and the inside and the outside of water seal bottle (10) are communicated through hollow rod (31), and the lower end of hollow rod (31) is detachably connected with float (32), and the upper end of hollow rod (31) is rotatably installed with telescopic rod (33) between lifting rod (21). Wherein, water seal bottle (10) liquid level drives float (32) to lift, makes float (32) drive sensor (22) to lift.
2. The real-time monitoring device for closed thorax drainage according to claim 1, characterized in that: The inside of hollow rod (31) is equipped with channel (41) penetrating both ends, the inside of float (32) and the outside of water seal bottle (10) are communicated through channel (41), and a plurality of air holes (42) are formed in the inner wall of the lower end of hollow rod (31), and air holes (42) are communicated with channel (41), and the inside and the outside of water seal bottle (10) are communicated through air hole (42) and channel (41).
3. The real-time monitoring device for closed thorax drainage according to claim 1, characterized in that: The telescopic rod (33) includes a first slide rod (51) rotatably connected to the hollow rod (31), a second slide rod (52) rotatably connected to the lifting rod (21), the first slide rod (51) and the second slide rod (52) are slidingly connected, and the second slide rod (52) is provided with a first scale line (53).
4. The real-time monitoring device for closed chest drainage of claim 1, wherein: The end of the telescopic rod (33) close to the hollow rod (31) is slidingly connected to the hollow rod (31), and the end of the telescopic rod (33) close to the hollow rod (31) is threadedly connected with a first limiting screw (54), and the end of the first limiting screw (54) abuts against the outer wall of the hollow rod (31).
5. The real-time monitoring device for closed chest drainage according to claim 1, wherein: The end of the telescopic rod (33) close to the lifting rod (21) is slidingly connected to the lifting rod (21), and the end of the telescopic rod (33) close to the lifting rod (21) is threadedly connected with a second limiting screw (55), and the end of the second limiting screw (55) abuts against the outer wall of the lifting rod (21).
6. The real-time monitoring device for closed chest drainage according to claim 1, wherein: The vent (12) is provided with a connecting sleeve (61), the lower end of the connecting sleeve (61) is detachably connected with the vent (12), the upper end of the connecting sleeve (61) is fixedly connected with a first linear bearing (62), and the hollow rod (31) is slidingly connected with the first linear bearing (62).
7. The real time monitoring device for closed chest drainage as claimed in claim 1 wherein: The outer side of the hollow rod (31) is slidingly connected with a limiting block (63), the limiting block (63) is threadedly connected with a third limiting screw (64), and the end of the third limiting screw (64) abuts against the outer wall of the hollow rod (31).
8. The real-time monitoring device for closed chest drainage according to claim 1, wherein: The hollow rod (31) is provided with a second scale line (65) in the axial direction, and the lifting rod (21) is provided with a third scale line (66) in the axial direction.
9. The real-time monitoring device for closed chest drainage according to claim 1, wherein: The external shell (20) comprises two clamping plates (71) arranged on the two sides of the water seal bottle (10) respectively, a plurality of bands (72) are connected between the two clamping plates (71), and the two clamping plates (71) and the water seal bottle (10) are detachably connected together through the plurality of bands (72).
10. The real-time monitoring device for closed chest drainage according to claim 9, characterized in that: A plurality of supporting legs (73) are arranged at the bottom of the clamping plate (71), and the supporting legs (73) are rotationally connected with the clamping plate (71).