CN213721934U - Measuring device with central venous pressure and intrathoracic pressure measuring function - Google Patents
Measuring device with central venous pressure and intrathoracic pressure measuring function Download PDFInfo
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- CN213721934U CN213721934U CN202022252563.3U CN202022252563U CN213721934U CN 213721934 U CN213721934 U CN 213721934U CN 202022252563 U CN202022252563 U CN 202022252563U CN 213721934 U CN213721934 U CN 213721934U
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Abstract
The invention meets the practical requirements and provides a measuring device which has novel structural design and has the functions of measuring the central venous pressure and the intrathoracic pressure, and the measuring device comprises a box body and a cover plate which is hinged at the end part of the box body and can be covered on the box body, wherein the cover plate is provided with a mercury column, and the inner side wall of the cover plate at the two sides of the mercury column is provided with scale values; still include with the trachea that the mercury column is connected, be connected with the check valve between trachea and the mercury column, the pneumatic valve of check valve for having the bleed valve, expired gas enters the trachea and gets into in the mercury column through the check valve during thorax internal pressure survey, or blood gets into in the trachea and pushes and make atmospheric pressure get into the mercury column through the check valve in the trachea when central venous pressure survey, can be convenient in the use, quick survey central venous pressure and thorax internal pressure, medical personnel's survey efficiency has been improved, blood can not only be avoided getting into in the trachea in its transfusion system's design, can avoid again having the isolation of noxious material and blood in the mercury column, and the use of disposable transfusion system improves the security when using.
Description
Technical Field
The invention relates to the technical field of tools for measuring central venous pressure and intrathoracic pressure, in particular to a measuring device with a function of measuring central venous pressure and intrathoracic pressure.
Background
The central venous pressure is the pressure of the thoracic cavity of the right atrium and the upper and lower vena cava, it can judge the comprehensive situation of the patient's blood volume, intrathoracic pressure and vascular tension, use the measuring ruler of the central venous pressure to determine in the actual operation, the measuring ruler of the central venous pressure has two kinds of glassware and plastic products, the measuring ruler of the central venous pressure of both materials is a tubular structure, it is open at both ends, use the middle non-disposable article, the blood enters the measuring ruler of the central venous pressure to judge through the height of blood in the measuring ruler of the central venous pressure in the determination, and the same patient needs to wash, sterilize when using again, and if meet the situation that the blood pressure is big in the measurement, its blood can squirt from the top of the measuring ruler of the central venous pressure, cause the pollution of the working environment.
The intrathoracic pressure, that is, the intra-pleural pressure refers to the pressure in the pleural cavity, and it is determined that the intra-pleural pressure is lower than the atmospheric pressure regardless of inhalation or exhalation, and is a negative pressure, which increases when inhaling and decreases when exhaling. The negative pressure of the pleural cavity can maintain the expansion state of the lung and ensure the normal ventilation of the lung; the negative pressure of the pleural cavity can reduce the central venous pressure, and is favorable for the backflow of venous blood and lymph fluid. In pleural cavity pressure measurement, invasive measurement methods are mostly adopted clinically, and in noninvasive measurement, for example, patent No. 201621041627.2, which is named as a patent document of an external noninvasive intrathoracic pressure measurement device, the device comprises a shell with a downward opening, and the periphery of the lower end of the shell is provided with an application patch which is fixedly connected with the shell; the casing is fixed in human sternum supraclavicular fossa department through applying ointment or plaster, forms airtight measurement chamber between human skin and the casing, external noninvasive intrathoracic pressure measuring device still includes pressure conduction pipe, and pressure conduction pipe's one end is passed the casing and is linked together with airtight measurement chamber, and pressure conduction pipe's the other end is connected to pressure sensor. In use, the external noninvasive intrathoracic pressure measuring device indirectly reflects the change situation of intrathoracic pressure by monitoring the activity of the suprasternal fossa skin, and the monitoring object is the activity of the suprasternal fossa skin, so that the external noninvasive intrathoracic pressure measuring device is in external noninvasive operation, does not cause discomfort of a patient, and is easier to be accepted by the patient. Although the device can measure the pressure in the pleural cavity in use, the accuracy of the device is verified, and the device is single in function and does not have the function of measuring the central venous pressure.
In the measurement of the central venous pressure and the measurement of the intrathoracic pressure index, two different measuring instruments are used, but if a measuring function for measuring the central venous pressure and the intrathoracic pressure can be designed, the measurement of the central venous pressure and the intrathoracic pressure is facilitated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the practical requirements and provide the measuring device which has novel structural design, is convenient for clinical work, is simple to operate and has the functions of measuring the central venous pressure and the intrathoracic pressure.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
designing a measuring device with functions of measuring central venous pressure and intrathoracic pressure, which comprises a box body and a cover plate hinged at the end part of the box body and capable of covering the box body, wherein the cover plate is provided with a mercury column, and the inner side walls of the cover plate at two sides of the mercury column are provided with scale values; the device is characterized by further comprising an air pipe connected with the mercury column, a one-way valve is connected between the air pipe and the mercury column, the one-way valve is an air valve with an air release valve, exhaled air enters the air pipe and enters the mercury column through the one-way valve during intrathoracic pressure measurement, or blood in blood vessels enters the air pipe and extrudes the air in the air pipe and promotes air pressure to enter the mercury column through the one-way valve during central venous pressure measurement.
The connector is arranged on the end part of the trachea and is connected with the disposable blowing nozzle or the infusion apparatus.
The air inlet of the one-way valve is connected with two air pipes which are a first air pipe and a second air pipe respectively, the first air pipe and the second air pipe are connected with the one-way valve through the first one-way valve and the second one-way valve respectively, and the air inlet ports of the first air pipe and the second air pipe are connected with the disposable mouthpiece and the infusion apparatus respectively.
Still including the transfusion system that is used for measuring central venous pressure, the transfusion system is including inserting to the syringe needle in the human blood vessel, the hose of being connected with the syringe needle, the kettle that drips with hose connection, the other end that drips the kettle is connected with the connecting pipe, and connecting pipe end connection has the butt joint, the connecting pipe passes through the butt joint and is connected with the second trachea, and when central venous pressure was surveyed, it has saline to squeeze into in the kettle, and blood passes through syringe needle jack-up saline and makes saline move to the trachea direction, makes the gaseous second trachea that gets into in the connecting pipe.
Further, this design still provides a measuring device with central venous pressure and intrathoracic pressure survey function, including the box body, articulate in the box body tip and can cover apron on the box body, the electronic sphygmomanometer that has the display, be equipped with trachea, its characterized in that on the electronic sphygmomanometer: the display is arranged on the cover plate, exhaled gas enters the trachea and is measured by the sensor during intrathoracic pressure measurement, or blood in the blood vessel enters the trachea and extrudes the gas in the trachea and promotes the air pressure to be measured by the sensor during central venous pressure measurement.
And the air outlet port of the air pipe is connected with the air inlet of the sensor through a one-way valve with an air release valve.
The air inlet of the one-way valve is connected with two air pipes which are a first air pipe and a second air pipe respectively, the first air pipe and the second air pipe are connected with the one-way valve through the first one-way valve and the second one-way valve respectively, and the inlet ports of the first air pipe and the second air pipe are connected with the disposable blowing nozzle and the infusion apparatus respectively.
Still including the transfusion system that is used for measuring central venous pressure, the transfusion system is including inserting to the syringe needle in the human blood vessel, the hose of being connected with the syringe needle, the kettle that drips with hose connection, the other end that drips the kettle is connected with the connecting pipe, and connecting pipe end connection has the butt joint, the connecting pipe passes through the butt joint and is connected with the second trachea, and when central venous pressure was surveyed, it has saline to squeeze into in the kettle, and blood passes through syringe needle jack-up saline and makes saline move to the trachea direction, makes the gaseous second trachea that gets into in the connecting pipe.
The invention has the beneficial effects that:
its structural design of this design is novel, and convenient to carry can make things convenient for, quick survey central venous pressure and intrathoracic pressure in the use, has improved medical personnel survey efficiency, and the design of its transfusion system not only can avoid blood to enter in the trachea, can avoid again having the isolation of toxic material and blood in the mercury column, and the security when just disposable transfusion system's use can also improve the use.
Drawings
FIG. 1 is a schematic structural view of a structure shown in embodiment 1 of the present invention;
FIG. 2 is a schematic view of the principle of internal gas paths of the structure shown in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of the structure shown in example 2 of the present invention;
FIG. 4 is a schematic view of the principle of internal gas paths of the structure shown in embodiment 2 of the present invention;
FIG. 5 is a schematic structural view of the structure shown in example 3 of the present invention;
fig. 6 is a schematic circuit diagram of the structure according to embodiment 3 of the present invention;
fig. 7 is a schematic structural view of infusion sets according to embodiments 1, 2 and 3 of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
example 1: a measuring device with central venous pressure and intrathoracic pressure measuring functions is provided, and refer to fig. 1, fig. 2 and fig. 7.
Including box body 1, articulate in 1 tip of box body and can cover apron 2 on box body 1 be equipped with on apron 2 mercury column 3, the apron inside wall of 3 both sides of mercury column is equipped with scale interval 4, its still include with trachea 5 that mercury column 3 is connected, for preventing in the mercury column in the poisonous mercury liquid enter the trachea and cause the harm to the human body, its be connected with the check valve between trachea 5 and the mercury column 3, the pneumatic valve of check valve for having the bleed valve, its accessible check valve decompresses the atmospheric pressure between trachea and the mercury column after the use.
Further, the device comprises an infusion apparatus for measuring the central venous pressure, wherein the infusion apparatus comprises a needle 9 inserted into a blood vessel of a human body, a hose 10 connected with the needle 9, and a drip cup 12 connected with the hose 10, the other end of the drip cup 12 is connected with a connecting pipe 13, the end part of the connecting pipe 13 is connected with a butt joint 14, the connecting pipe is connected with a trachea through the butt joint 14, and meanwhile, the hose 10 is provided with a liquid stopper 11.
Furthermore, a connector 15 is arranged at the end part of the trachea, and the connector is connected with a disposable blowing nozzle or an infusion set.
This embodiment allows for central venous pressure and intrathoracic pressure measurements to be made during use, which, when measured, the infusion apparatus is a disposable article, the trachea of the infusion apparatus is connected with the butt joint 14 through the connector 15 when in use, at the moment, the liquid stopper 11 is closed, the physiological saline is pumped into the drip cup, the stopper 11 is then opened and the hose and needle are forced to fill with physiological saline, and then the stopper 11 is closed again, at which point the needle can be inserted into the blood vessel, then the liquid stopper 11 is opened, after that, the blood 1 pushes up the physiological saline through the needle and drives the physiological saline to move towards the trachea, the gas in the connecting tube is driven to enter the mercury column, and finally the mercury column can be lifted, and then the central venous pressure condition is judged according to the height of the mercury column, the infusion apparatus is pulled out and separated from the trachea after the measurement, and the pressure is reduced by air release of the one-way valve, so that the measurement of the central venous pressure can be completed.
When intrathoracic pressure survey, be connected hose and disposable mouthpiece, blow to the trachea through disposable mouthpiece when the patient carries out the foaming test, and the atmospheric pressure in the back trachea gets into the mercury column and makes the mercury column rise through the check valve, then highly judges intrathoracic pressure condition through the mercury column, with disposable mouthpiece and trachea separation after the survey, steps down through the check valve gassing, so can accomplish the survey to intrathoracic pressure. The patient is tested for the presence of patent foramen ovale by measuring intrathoracic pressure (examination of patent foramen ovale typically requires intrathoracic pressure of 40MMHG to be detected). Embodiment 2, see fig. 3, fig. 4, and fig. 7, the same as embodiment 1 will not be described again, except that:
the air inlet of the one-way valve is connected with two air pipes which are a first air pipe and a second air pipe respectively, the first air pipe and the second air pipe are connected with the one-way valve through the first one-way valve and the second one-way valve respectively, and the air inlet ports of the first air pipe and the second air pipe are connected with the disposable mouthpiece and the infusion apparatus respectively.
In the specific use, the first trachea is connected with the disposable mouthpiece to measure the intrathoracic pressure, and the second trachea is connected with the infusion apparatus to measure the central venous pressure.
Example 3, this example proposes a measuring device with central venous pressure and intrathoracic pressure measurement functions, see fig. 5, 6, 7.
Including box body 1, articulate in 1 tip of box body and can cover apron 2 on the box body, have the electronic sphygmomanometer of display 8, be equipped with trachea 6, air pump, switch, power on the electronic sphygmomanometer, the inside structure of the electronic sphygmomanometer that this embodiment used and foretell trachea 6, air pump, switch, power are prior art, and this embodiment is no longer repeated.
In the design, the display 8 is arranged on the cover plate 2, the air outlet port of the air pipe is connected with the air inlet of the sensor through the one-way valve with the air release valve, meanwhile, the air inlet of the one-way valve is connected with two air pipes which are respectively a first air pipe 6 and a second air pipe 7, the first air pipe and the second air pipe are respectively connected with the one-way valve through the first one-way valve and the second one-way valve, and the inlet ports of the first air pipe and the second air pipe are respectively connected with the disposable blowing nozzle and the infusion apparatus.
Further, the device comprises an infusion apparatus for measuring the central venous pressure, wherein the infusion apparatus comprises a needle 9 inserted into a blood vessel of a human body, a hose 10 connected with the needle 9, and a drip cup 12 connected with the hose 10, the other end of the drip cup 12 is connected with a connecting pipe 13, the end part of the connecting pipe 13 is connected with a butt joint 14, the connecting pipe is connected with a trachea through the butt joint 14, and meanwhile, the hose 10 is provided with a liquid stopper 11.
Furthermore, connectors are arranged at the end parts of the first air pipe 6 and the second air pipe 7, and the connectors are connected with a butt joint 14 on a disposable blowing nozzle or an infusion apparatus.
In the embodiment, the central venous pressure and the intrathoracic pressure can be measured during use, when the central venous pressure is measured, an infusion apparatus is a disposable article, two tracheas of the infusion apparatus are connected with an abutment 14 through a connector 15 during use, at the moment, a liquid stopper 11 is closed, physiological saline is pumped into a drip cup, then the liquid stopper 11 is opened, a hose and a needle are enabled to be filled with the physiological saline, then the liquid stopper 11 is closed again, the needle can be inserted into a blood vessel at the moment, then the liquid stopper 11 is opened, then 1 blood jacks up the physiological saline through the needle and enables the physiological saline to move towards the trachea direction, gas in the connection tube is enabled to enter the trachea and be measured through a sensor, an air pump amplifies the air pressure entering the trachea during measurement, data measured by the sensor enters a controller for calculation and then is displayed through a display, and then the central venous pressure condition is determined through the data displayed by the display, after the measurement, the infusion apparatus is pulled out and separated from the trachea, and the pressure is reduced by air release of the one-way valve, so that the measurement of the central venous pressure can be completed.
When intrathoracic pressure survey, be connected first trachea and disposable mouthpiece, the patient blows to the trachea through disposable mouthpiece when carrying out the foaming test, and the intraductal atmospheric pressure of back trachea enters into the trachea through the check valve and measures through the sensor, the air pump enlargies the atmospheric pressure that gets into the trachea during measurement, data access controller after the sensor measurement calculates and then shows through the display, then judge the intrathoracic pressure condition through the data that the display shows, survey back with disposable mouthpiece and trachea separation, step-down through the check valve gassing, so can accomplish the survey to intrathoracic pressure.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. A measuring device with functions of measuring central venous pressure and intrathoracic pressure comprises a box body, a cover plate hinged at the end part of the box body and capable of covering the box body, wherein a mercury column is arranged on the cover plate, and scale values are arranged on the inner side walls of the cover plate at two sides of the mercury column; the method is characterized in that: the device is characterized by further comprising an air pipe connected with the mercury column, a one-way valve is connected between the air pipe and the mercury column, the one-way valve is an air valve with an air release valve, exhaled air enters the air pipe and enters the mercury column through the one-way valve during intrathoracic pressure measurement, or blood in blood vessels enters the air pipe and extrudes the air in the air pipe and promotes air pressure to enter the mercury column through the one-way valve during central venous pressure measurement.
2. The measurement device having a central venous pressure and intrathoracic pressure measurement function according to claim 1, wherein: the connector is arranged on the end part of the trachea and is connected with the disposable blowing nozzle or the infusion apparatus.
3. The measurement device having a central venous pressure and intrathoracic pressure measurement function according to claim 2, wherein: the air inlet of the one-way valve is connected with two air pipes which are a first air pipe and a second air pipe respectively, the first air pipe and the second air pipe are connected with the one-way valve through the first one-way valve and the second one-way valve respectively, and the air inlet ports of the first air pipe and the second air pipe are connected with the disposable mouthpiece and the infusion apparatus respectively.
4. A measuring device having a central venous pressure and intrathoracic pressure measuring function according to claim 3, wherein: still including the transfusion system that is used for measuring central venous pressure, the transfusion system is including inserting to the syringe needle in the human blood vessel, the hose of being connected with the syringe needle, the kettle that drips with hose connection, the other end that drips the kettle is connected with the connecting pipe, and connecting pipe end connection has the butt joint, the connecting pipe passes through the butt joint and is connected with the second trachea, and when central venous pressure was surveyed, it has saline to squeeze into in the kettle, and blood passes through syringe needle jack-up saline and makes saline move to the trachea direction, makes the gaseous second trachea that gets into in the connecting pipe.
5. The utility model provides a measuring device with central venous pressure and intrathoracic pressure survey function, includes the box body, articulate in box body tip and can cover apron on the box body, the electronic sphygmomanometer that has the display, is equipped with the trachea on the electronic sphygmomanometer, its characterized in that: the display is arranged on the cover plate, exhaled gas enters the trachea and is measured by the sensor during intrathoracic pressure measurement, or blood in the blood vessel enters the trachea and extrudes the gas in the trachea and promotes the air pressure to be measured by the sensor during central venous pressure measurement.
6. The measurement device having a central venous pressure and intrathoracic pressure measurement function according to claim 5, wherein: and the air outlet port of the air pipe is connected with the air inlet of the sensor through a one-way valve with an air release valve.
7. The measurement device having a central venous pressure and intrathoracic pressure measurement function according to claim 6, wherein: the air inlet of the one-way valve is connected with two air pipes which are a first air pipe and a second air pipe respectively, the first air pipe and the second air pipe are connected with the one-way valve through the first one-way valve and the second one-way valve respectively, and the inlet ports of the first air pipe and the second air pipe are connected with the disposable blowing nozzle and the infusion apparatus respectively.
8. The measurement device having a central venous pressure and intrathoracic pressure measurement function according to claim 7, wherein: still including the transfusion system that is used for measuring central venous pressure, the transfusion system is including inserting to the syringe needle in the human blood vessel, the hose of being connected with the syringe needle, the kettle that drips with hose connection, the other end that drips the kettle is connected with the connecting pipe, and connecting pipe end connection has the butt joint, the connecting pipe passes through the butt joint and is connected with the second trachea, and when central venous pressure was surveyed, it has saline to squeeze into in the kettle, and blood passes through syringe needle jack-up saline and makes saline move to the trachea direction, makes the gaseous second trachea that gets into in the connecting pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022252563.3U CN213721934U (en) | 2020-10-09 | 2020-10-09 | Measuring device with central venous pressure and intrathoracic pressure measuring function |
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| CN202022252563.3U CN213721934U (en) | 2020-10-09 | 2020-10-09 | Measuring device with central venous pressure and intrathoracic pressure measuring function |
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| CN213721934U true CN213721934U (en) | 2021-07-20 |
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| CN202022252563.3U Active CN213721934U (en) | 2020-10-09 | 2020-10-09 | Measuring device with central venous pressure and intrathoracic pressure measuring function |
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