CN212996408U - Central venous pressure measuring device - Google Patents
Central venous pressure measuring device Download PDFInfo
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- CN212996408U CN212996408U CN202020444601.2U CN202020444601U CN212996408U CN 212996408 U CN212996408 U CN 212996408U CN 202020444601 U CN202020444601 U CN 202020444601U CN 212996408 U CN212996408 U CN 212996408U
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Abstract
The utility model discloses a central venous pressure measuring device, which comprises a puncture head, a Murphy's tube and a clamping joint; a breather pipe is connected to one side below the puncture head, a transition pipe is arranged at the lower end of the puncture head, a rolling switch is arranged on the transition pipe, a Murphy's pipe is arranged at the lower end of the transition pipe, an air pipe is arranged at the upper side of the Murphy's pipe, and a rubber cover is arranged at the end head of the air pipe; the lower end of the Murphy's tube is connected with a transfusion tube, scales are attached to the transfusion tube, and the scales are gradually increased towards the end of the transfusion tube far away from the Murphy's tube along the position close to the Murphy's tube; the end of the infusion tube, which is far away from the Murphy's tube, is provided with a connector, a filter screen is arranged in the connector, a liquid inlet tube is arranged on the connector, and a stop switch is arranged on the liquid inlet tube; the clamping head comprises a clamping part and a positioning part, the clamping part is clamped on the infusion tube, and the positioning part is arranged on the clamping part. Can make things convenient for medical personnel to carry out the measurement of central venous pressure, and do not receive the restriction of environment, be suitable for different measurement situation, make things convenient for the reading, convenient to use, the cost of manufacture is low.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to central venous pressure measuring device.
Background
The Central Venous Pressure (CVP) is the pressure of the superior and inferior vena cava entering the right atrium, is measured by the superior and inferior vena cava or right atrial indwelling catheter, reflects the right atrial pressure, is one of the main indexes for clinical observation of hemodynamics, and is influenced by 3 factors of cardiac function, circulating blood volume and vascular tension. The blood pressure in the right atrium and the big thoracic vein is commonly referred to as central venous pressure; the central venous pressure is an important index for judging volume perfusion and cardiac function, and has important significance for guiding the transfusion quantity and the transfusion speed of a patient. Due to economic and equipment conditions and other factors, traditional manual measurement methods are often adopted in general wards and primary hospitals to measure the CVP, and determination of the zero point position of the CVP is the most important factor influencing the measurement result. Clinical medical personnel often use visual observation or a ruler to perform two-point horizontal zero alignment, and the farther the two points are, the larger the error is.
The utility model with the patent number of CN2688225 discloses a central venous pressure measuring tube, which is characterized in that a vertical tube with scales and a U-shaped tube are arranged for measuring the central venous pressure, the U-shaped tube determines the zero point position when the central venous pressure is measured by the principle of a communicating vessel, the vertical tube is used for reading the value of the central venous pressure, the measurement of the central venous pressure can be realized, but the pressure measurement is carried out by using a special pressure measuring tube, and the waste is easily caused; and the piezometer tube of the patent is in a fixed hard form, is easily limited by the environment in clinical application, and is difficult to adapt to different treatment environments.
The utility model patent No. CN209661631U discloses a central venous pressure measurement transfer line, can be used as the transfer line, also can be used as central venous pressure measurement pipe, but this central venous pressure measurement transfer line can only be measured when the end of this transfer line and the "zero point" coincidence of central venous pressure when measuring and the transfer line is vertical, be difficult to confirm the "zero point" position in the transfer line when the part of this transfer line near the "zero point" of central venous pressure is crooked form or other shapes, can not measure central venous pressure, be difficult to adapt to different measurement situations.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem, designed a central venous pressure measuring device, can make things convenient for medical personnel to carry out the measurement of central venous pressure, and do not receive the restriction of environment, be suitable for different measurement situations, convenient to use, the cost of manufacture is low.
In order to solve the above technical problem and achieve the above technical effect, the utility model discloses a following technical content realizes:
a central venous pressure measuring device comprises a puncture head, a Murphy's tube and a clamping connector; a vent pipe is connected to one side below the puncture head, a transition pipe is arranged at the lower end of the puncture head, and a rolling switch is arranged on the transition pipe and used for controlling the on-off of liquid in the transition pipe; the lower end of the transition pipe is provided with a Murphy's pipe, the upper side of the Murphy's pipe is provided with an air pipe, the end head of the air pipe is provided with a rubber cover, and the air pipe is used for connecting atmospheric pressure; the lower end of the Murphy's tube is connected with a transfusion tube, scales are attached to the transfusion tube, the scales are gradually increased towards the end of the transfusion tube far away from the Murphy's tube along the position close to the Murphy's tube, and the scales are used for reading the value of the central muscle pulse pressure; the end of the infusion tube, which is far away from the Murphy's tube, is provided with a connector, a filter screen is arranged in the connector, a liquid inlet tube is arranged on the connector, and a stop switch is arranged on the liquid inlet tube; the clamping head comprises a clamping part and a positioning part, the clamping part is clamped on the infusion tube, and the positioning part is arranged on the clamping part.
The part of the infusion tube, which is 2cm-3cm away from the Murphy's tube, is a starting point of the scale, and the length of the infusion tube is 80cm-130 cm; the end point of the scale is the end of the transfusion tube far away from the Murphy's tube.
The clamping part is formed by cutting one third of a hollow round pipe made of rubber along the axis.
The positioning part is a laser pen, the laser pen is installed on the clamping part, and the axis of the laser pen is parallel to the axis of the clamping part; the laser pointer is used to locate the "zero point".
The positioning part is a telescopic rod. For locating the "zero point".
The scales are arranged on a reference tube wrapping the infusion tube, the reference tube is detachably connected with the infusion tube, and the length of the reference tube is consistent with that of the infusion tube.
The scales are arranged on the surface of the infusion tube.
The utility model has the advantages that:
1. the pressure measuring tube can be used as a perfusion tube and a pressure measuring tube, a specially-made pressure measuring tube is not needed, the manufacturing is simple, the cost is low, part of elements can be repeatedly utilized, and resources are saved.
2. The device is not limited by treatment environment, has high flexibility, is suitable for different pressure measurement situations, is convenient for medical personnel to find the zero point of the central venous pressure, and calculates the central venous pressure value through the scale on the infusion tube.
3. The scales on the infusion tube are gradually increased from the position close to the Murphy's tube to the end of the infusion tube far away from the Murphy's tube, so that the reading is convenient when the zero point on the infusion tube is determined, and the reading is convenient when the liquid level is lowered to be stable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a central venous pressure measuring device according to the present invention;
fig. 2 is a schematic diagram of a clamping head structure of a central venous pressure measuring device according to the present invention;
fig. 3 is a schematic diagram of a reference tube structure of a central venous pressure measurement device according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-puncture head, 2-vent pipe, 3 transition pipe, 301-rolling switch, 4-Murphy's pipe, 5-trachea, 501-rubber cover, 6-infusion pipe, 601-connector, 7-scale, 8-joint, 801-joint, 802-positioning part, 9-liquid inlet pipe and 10-cut-off switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, a central venous pressure measuring device comprises a puncture head 1, a Murphy's tube 4 and a clamping head 8; a vent pipe 2 is connected to one side below the puncture head 1, a transition pipe 3 is arranged at the lower end of the puncture head 1, a rolling switch 301 is arranged on the transition pipe 3, a Murphy's pipe 4 is arranged at the lower end of the transition pipe 3, an air pipe 5 is arranged on the upper side of the Murphy's pipe 4, and a rubber cover 501 is arranged at the end of the air pipe 5; the lower end of the Murphy's tube 4 is connected with a transfusion tube 6, scales 7 are attached to the transfusion tube 6, and the scales 7 are gradually increased towards the end of the transfusion tube 6 far away from the Murphy's tube 4 along the position close to the Murphy's tube 4; the end of the infusion tube 6, which is far away from the Murphy's tube 4, is provided with a connector 601, a filter screen is arranged in the connector 601, a liquid inlet tube 9 is arranged on the connector 601, and a stop switch 10 is arranged on the liquid inlet tube 9; the clip joint 8 includes a clip portion 801 and a positioning portion 802, the clip portion 801 is clipped to the infusion tube 6, and the positioning portion 802 is mounted on the clip portion 801.
The position of the infusion tube 6, which is 2cm-3cm away from the Murphy's tube 4 range, is the starting point of the scale 7, and the length of the infusion tube 6 is 80cm-130 cm; the end point of the scale 7 is the end of the transfusion tube 6 far away from the Murphy's tube 4.
The clamping portion 801 is formed by cutting one third of a hollow round pipe made of rubber along the axis.
The positioning portion 802 is a laser pen, the laser pen is mounted on the clamping portion 801, and the axis of the laser pen is parallel to the axis of the clamping portion 801.
The positioning portion 802 is a telescopic rod.
The scales 7 are arranged on a reference tube 11 wrapping the infusion tube 6, the reference tube 11 is detachably connected with the infusion tube 6, and the length of the reference tube 11 is consistent with that of the infusion tube 6.
The scale 7 is arranged on the surface of the infusion tube 6.
For a clearer description of the present invention, the following description is made with reference to specific embodiments:
example 1
The utility model relates to a when central venous pressure measuring device uses "zero point" of central venous pressure coincide with transfer line tail end concrete application do:
when the puncture needle is used, the puncture needle is inserted into an infusion bottle and is suspended and fixed well, so that the transition pipe, the infusion pipe and the liquid inlet are filled with liquid, during pressure measurement, the rolling switch above the Murphy's tube is closed to cut off a liquid channel in the transition pipe, the stop switch is closed to cut off a liquid channel in the liquid inlet pipe, the liquid inlet pipe is communicated with a patient, the rubber cover on the trachea is opened, the air pressure in the infusion pipe is the same as the atmospheric pressure, the pipeline on the measuring device is kept vertical, the stop switch is opened, when the liquid level in the infusion pipe is observed to be descended to be stable, the scale of the point is recorded, and the length when the position of the point is subtracted by the.
Examples
The utility model relates to a concrete application when transfer line tail end is crooked when central venous pressure measuring device uses does:
when the puncture needle is used, the puncture needle is inserted into an infusion bottle and is suspended and fixed well, so that the transition pipe, the infusion pipe and the liquid inlet are filled with liquid, when pressure is measured, the rolling switch above the Murphy's tube is closed to cut off the liquid channel in the transition pipe, the cut-off switch is closed to cut off the liquid channel in the liquid inlet pipe, the liquid inlet pipe is communicated with a patient, and the rubber cover on the trachea is opened, so that the air pressure in the infusion pipe is the same as the atmospheric pressure; determining the zero point of the central venous pressure on the body of a patient by taking the patient as the center, keeping a chuck and the zero point on the same line, opening a laser pen, straightening the part above an infusion tube, irradiating the infusion tube with light rays emitted by the laser pen, determining the position of the zero point on the infusion tube according to the principle of a communicating device, enabling the part of the infusion tube between the position of the zero point on the infusion tube and the patient to be in a bent state, opening a stop switch, recording the scale of the point when the liquid level in the infusion tube is stably observed, and subtracting the scale value when the liquid level is stably reduced from the scale value of the position of the zero point of the infusion tube to obtain the value of the central venous pressure; because the scales on the infusion tube are gradually increased from the position close to the Murphy's tube to the end of the infusion tube far away from the Murphy's tube, the reading is convenient when the zero point on the infusion tube is determined, and the reading is also convenient when the liquid level is descended to be stable.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A central venous pressure measurement device, characterized by: comprises a puncture head, a Murphy tube and a clamping joint; a breather pipe is connected to one side below the puncture head, a transition pipe is arranged at the lower end of the puncture head, a rolling switch is arranged on the transition pipe, a Murphy's pipe is arranged at the lower end of the transition pipe, an air pipe is arranged at the upper side of the Murphy's pipe, and a rubber cover is arranged at the end head of the air pipe; the lower end of the Murphy's tube is connected with a transfusion tube, scales are attached to the transfusion tube, and the scales are gradually increased towards the end of the transfusion tube far away from the Murphy's tube along the position close to the Murphy's tube; the end of the infusion tube, which is far away from the Murphy's tube, is provided with a connector, a filter screen is arranged in the connector, a liquid inlet tube is arranged on the connector, and a stop switch is arranged on the liquid inlet tube; the clamping head comprises a clamping part and a positioning part, the clamping part is clamped on the infusion tube, and the positioning part is arranged on the clamping part.
2. A central venous pressure measurement device as claimed in claim 1, characterised in that: the part of the infusion tube, which is 2cm-3cm away from the Murphy's tube, is a starting point of the scale, and the length of the infusion tube is 80cm-130 cm; the end point of the scale is the end of the transfusion tube far away from the Murphy's tube.
3. A central venous pressure measurement device as claimed in claim 1, characterised in that: the clamping part is formed by cutting one third of a hollow round pipe made of rubber along the axis.
4. A central venous pressure measurement device as claimed in claim 3, characterised in that: the location portion is the laser pen, and the laser pen is installed in joint portion and the axle center of laser pen is on a parallel with the axle center of joint portion.
5. A central venous pressure measurement device as claimed in claim 3, characterised in that: the positioning part is a telescopic rod.
6. A central venous pressure measurement device as claimed in claim 1, characterised in that: the scales are arranged on a reference tube wrapping the infusion tube, the reference tube is detachably connected with the infusion tube, and the length of the reference tube is consistent with that of the infusion tube.
7. A central venous pressure measurement device as claimed in claim 1, characterised in that: the scales are arranged on the surface of the infusion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020444601.2U CN212996408U (en) | 2020-03-31 | 2020-03-31 | Central venous pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020444601.2U CN212996408U (en) | 2020-03-31 | 2020-03-31 | Central venous pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212996408U true CN212996408U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020444601.2U Active CN212996408U (en) | 2020-03-31 | 2020-03-31 | Central venous pressure measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN212996408U (en) |
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2020
- 2020-03-31 CN CN202020444601.2U patent/CN212996408U/en active Active
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