CN210871555U - Central venous pressure measuring device - Google Patents
Central venous pressure measuring device Download PDFInfo
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- CN210871555U CN210871555U CN201921459777.9U CN201921459777U CN210871555U CN 210871555 U CN210871555 U CN 210871555U CN 201921459777 U CN201921459777 U CN 201921459777U CN 210871555 U CN210871555 U CN 210871555U
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Abstract
The utility model discloses a central venous pressure measuring device belongs to the medical instrument field. The neutral venous pressure measuring device comprises a main pipeline, an air semi-permeable membrane, a precision filter, a positive pressure joint and a three-way pipe. The vertical section of the main pipeline is marked with scales, and the tail end of the horizontal section is connected with the three-way pipe. The air semi-permeable membrane is respectively positioned at the initial end of the vertical section and the tail end of the horizontal section of the main pipeline. The precision filter is positioned below the vertical scale of the main pipeline. The positive pressure joint is positioned at the upper end of the vertical section of the main pipeline. The utility model is simple in operation, but accurate rapid survey patient central venous pressure effectively avoids the air to get into the internal air embolism that leads to of patient, reduces medical personnel's work load, reduces medical resource's waste.
Description
Technical Field
The utility model belongs to the auxiliary field of medical treatment relates to a measuring device, especially a central venous pressure measuring device.
Background
The Central Venous Pressure (CVP) is the pressure of the upper and lower vena cava entering the right atrium, is measured through the upper and lower vena cava or the right atrial internal catheter, reflects the right atrial pressure, is one of the main indexes for clinical observation of hemodynamics, and is convenient for medical staff to judge the change of the state of illness of a patient by quickly and accurately measuring the central venous pressure. Currently, the measurement of central venous pressure in clinical work is mainly carried out in the following ways: firstly, connecting a double-end infusion pipeline with a 0.9% sodium chloride injection bag liquid, and exhausting air; secondly, embedding the infusion pipeline on a scale plate; thirdly, connecting the infusion pipeline with the deep venous pipeline of the patient, then closing the infusion joint, opening the vacant infusion joint and keeping the atmospheric pressure balance; fourthly, under the action of gravity, the 0.9% sodium chloride injection freely flows downwards along the pipeline, and the position where the sodium chloride injection stays on the scale plate is the central venous pressure value of the human body. The liquid is easily polluted because the transfusion joint is directly exposed out of the air, and then the downward speed of the liquid is too high for a patient with a low central venous pressure value, so that a large amount of air is easily introduced into the body of the patient to cause air embolism, the operation is complicated, and the workload of medical workers is greatly increased.
Chinese patent with publication number CN108158567A discloses a medical instrument, namely a central venous pressure ruler, which comprises a transparent outer caliper, wherein the front wall surface of the outer caliper is provided with a channel, the rear wall surface of the outer caliper is provided with at least two fixing wings, the outer caliper is fixedly arranged on an internal standard ruler provided with scale marks on an infusion support through the fixing wings, the outer caliper can be arranged in the channel of the outer caliper in a penetrating way and can move up and down, the front wall surface of the inner caliper is concavely provided with a containing groove capable of containing a pressure measuring tube, and the extending direction of the containing groove is parallel to the extending direction of the scale marks.
Although the above patent facilitates height adjustment and has a stable structure, in the process of measuring central venous pressure, the operation process is still complicated, the workload of medical work is increased, and air embolism cannot be effectively prevented.
Disclosure of Invention
An object of the utility model is to provide a central venous pressure measuring device, but accurate rapid survey patient central venous pressure effectively avoids the air to get into the internal air embolism that leads to of patient, reduces medical personnel's work load, reduces medical resource's waste.
Central venous pressure measuring device, include: the main pipeline is in a right-angle shape and comprises a vertical section and a horizontal section, wherein the upper part of the vertical section is provided with a positive pressure joint; a first air semi-permeable membrane located at the beginning of the vertical section of the main pipe; a second air permeable membrane located at the end of the horizontal section of the main body conduit; the positive pressure joint is arranged at the upper part of the vertical section of the main pipeline and is positioned at the lower end of the first air semipermeable membrane; the three-way pipe is connected to the tail end of the horizontal section of the main pipeline and is positioned behind the second air semipermeable membrane; the vertical section of the main pipeline is marked with scales, and the tail end of the horizontal section is connected with the three-way pipe; a fine filter disposed below the scale marked on the vertical section of the main body pipe.
According to a novel central venous pressure measuring device's further characteristic, the malleation connect be used for through the syringe to main part pipeline injection liquid.
According to a novel central venous pressure measuring device's further characteristic, the air pellicle only allows the air to see through, does not allow liquid to see through to guarantee that the inside and outside atmospheric pressure of pipeline is balanced.
According to the further characteristics of the novel central venous pressure measuring device of the utility model, the horizontal section of the main pipeline is soft and can be freely bent; the vertical section of the main pipeline is hard and cannot be bent freely.
According to a novel central venous pressure measuring device's further feature, precision filter is used for preventing the air admission the horizontal segment of main part pipeline.
According to a novel central venous pressure measuring device further characterized in that, regulating switch is equipped with on the three-way pipe for make main part pipeline and human dark venous line pipeline communicate with each other or the disconnection.
Central venous pressure measuring device have following beneficial effect:
(1) the device can effectively avoid liquid to receive air pollution in the process of measuring the central venous pressure.
(2) The device can prevent air from entering into the body of a patient during use, thereby avoiding air embolism.
(3) Only a small amount of liquid is needed in the refitting and using process, so that the resource waste is reduced.
(4) The device convenient to use is swift, and the operating procedure is few, can effectively reduce nurse's work load.
Drawings
Fig. 1 is a schematic structural diagram of a central venous pressure measuring device according to the present invention.
Reference numerals: 1: a positive pressure joint; 2: a first air semipermeable membrane; 21: a second air semipermeable membrane; 3: a main body duct; 4: a precision filter; 5: a three-way pipe.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings and preferred embodiments.
A novel central venous pressure measuring device, as shown in fig. 1, include: the positive pressure joint 1 is positioned at the upper part of the vertical section of the main pipeline and is positioned at the lower end of the air semi-permeable membrane 2; air semi-permeable membranes 2 and 21 are respectively positioned at the initial end of the vertical section and the tail end of the horizontal section of the main pipeline; the main pipe 3 has a vertical section marked with a scale (for example, the scale unit is cmH)2O, value range is-10 cmH2O to 30cmH2O), the tail end of the horizontal section is connected with the three-way pipe; the precision filter 4 is positioned below the vertical section scale of the main pipeline; and the three-way pipe 5 is connected with the tail end of the horizontal section of the main pipeline and is positioned behind the air semi-permeable membrane 21. When injecting liquid through the positive pressure connector, the three-way pipe is closed to disconnect the device from the deep venous line of the patientUnder the action of the air semipermeable membranes at the two ends of the main pipeline, liquid can freely flow along the pipeline to exhaust, after the pipeline is filled with the liquid, the three-way pipe is opened, the liquid freely descends, and due to the action of the precision filter, a large amount of gas can be prevented from entering the patient, and finally, the liquid level stays on the vertical section of the main pipeline, namely, the central venous pressure value of the patient is marked.
Claims (6)
1. A central venous pressure measurement device, comprising:
the main pipeline is in a right-angle shape and comprises a vertical section and a horizontal section, wherein the upper part of the vertical section is provided with a positive pressure joint;
a first air semi-permeable membrane located at the beginning of the vertical section of the main pipe;
a second air permeable membrane located at the end of the horizontal section of the main body conduit;
the positive pressure joint is arranged at the upper part of the vertical section of the main pipeline and is positioned at the lower end of the first air semipermeable membrane;
the three-way pipe is connected to the tail end of the horizontal section of the main pipeline and is positioned behind the second air semipermeable membrane;
the vertical section of the main pipeline is marked with scales, and the tail end of the horizontal section is connected with the three-way pipe;
a fine filter disposed below the scale marked on the vertical section of the main body pipe.
2. The central venous pressure measurement device of claim 1, wherein: the positive pressure joint is used for injecting liquid into the main pipeline through an injector.
3. The central venous pressure measurement device of claim 1, wherein: the air semi-permeable membrane only allows air to permeate through and does not allow liquid to permeate through, so that the balance of the atmospheric pressure inside and outside the pipeline is ensured.
4. The central venous pressure measurement device of claim 1, wherein: the horizontal section of the main pipeline is soft and can be freely bent; the vertical section of the main pipeline is hard and cannot be bent freely.
5. The central venous pressure measurement device of claim 1, wherein: the fine filter is used for preventing air from entering the horizontal section of the main body pipeline.
6. The central venous pressure measurement device of claim 1, wherein: the three-way pipe is provided with an adjusting switch for connecting or disconnecting the main pipeline with the human body deep vein pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459777.9U CN210871555U (en) | 2019-09-04 | 2019-09-04 | Central venous pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459777.9U CN210871555U (en) | 2019-09-04 | 2019-09-04 | Central venous pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210871555U true CN210871555U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459777.9U Active CN210871555U (en) | 2019-09-04 | 2019-09-04 | Central venous pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210871555U (en) |
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2019
- 2019-09-04 CN CN201921459777.9U patent/CN210871555U/en active Active
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