CN201389019Y - Disposable central venous pressure measurement device - Google Patents

Abstract

The utility model discloses a disposable central venous pressure measuring device, which comprises a bottle insertion needle, a Murphy's dropper, a flow regulator, a liquid medicine filter, an intravenous infusion needle, a three-way cock valve, an extension hose and a scale The bottle insertion needle is connected to the Murphy dropper and the flow regulator in turn through the infusion hose, the medicinal liquid filter and the intravenous infusion needle are connected through the infusion hose, and one end of the three-way stopcock is connected to the infusion soft tube. The tube is connected to the flow regulator, the other end is connected to one end of the extension hose, and the other end is connected to one end of the scale hose; the other end of the extension hose is connected to the liquid medicine filter; the scale hose is connected along the Scale marks are arranged on the pipe wall in the length direction and a filter screen is connected to the other end. The disposable central venous pressure measuring device of the utility model integrates an infusion set, a scale, a three-way device and an extension tube, and overcomes the shortcomings of the original pressure measuring device, such as complicated connection, many joints, and easy falling off of the joints, leading to adverse consequences.

Description

Disposable central venous pressure measurement device

technical field

The utility model relates to a disposable central venous pressure measuring device.

Background technique

With the development of medical science, hemodynamic monitoring has been widely used clinically. The central vein can reflect changes in blood volume, venous blood return, right ventricular filling pressure, or right ventricular function. It is an important reference for guiding the amount and speed of blood and fluid replacement, preventing heart overload, and guiding the use of diuretics. Therefore, it is an important monitoring item of circulatory function in intensive care patients and patients after cardiovascular surgery. There are many kinds of devices for monitoring central venous pressure in clinical practice, and the "direct infusion device measurement method" currently in use is more likely to be artificially polluted; the other is "scale, infusion device, extension tube and The "three-way tube method" is currently a commonly used measurement method in clinical practice, but its device connection is cumbersome and there are too many operating links; there is also a "cardiovascular system monitor", which has the disadvantages of many complications and high cost. For this reason, people in the industry urgently need to design an easy-to-use and low-cost device for clinically monitoring central venous pressure.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a disposable central venous pressure measuring device, which is simple and convenient to operate; cheap in price, saves materials and effectively reduces costs, thereby reducing the burden on patients.

A technical solution to achieve the above object is: a disposable central venous pressure measuring device, including a bottle insertion needle, a Murphy's dropper, a flow regulator, a liquid medicine filter and an intravenous infusion needle, and the bottle insertion needle passes through the infusion The hose is connected to the Murphy's dropper and the flow regulator in sequence, and the liquid medicine filter and the intravenous infusion needle are connected through the infusion hose, which also includes a three-way stopcock, an extension hose and a ruler hose,

One end of the three-way cock valve is connected to the flow regulator through the infusion hose, the other end is connected to one end of the extension hose, and the other end is connected to one end of the scale hose;

The other end of the extension hose is connected to the liquid medicine filter;

The scale hose is provided with scale marks on the pipe wall along the length direction and the other end is connected with a filter screen.

The above-mentioned disposable central venous pressure measuring device, wherein, the range of the scale marks on the scale tube is -15cm to 35cm, and the unit scale is 1mm.

The above-mentioned disposable central venous pressure measuring device, wherein, the tube wall of the scale hose opposite to the scale mark line is provided with a dark background, and the scale mark line is set to a light color, and the scale mark line is set The 0 tick mark for is set to a bright color different from the other tick marks.

In the above-mentioned disposable central venous pressure measuring device, the length of the scale hose is 650-750 mm, and the length of the extension hose is 700-750 mm.

In the above-mentioned disposable central venous pressure measuring device, the upper end surface of the three-way stopcock is provided with arrow marks indicating its opening and closing positions.

The above-mentioned disposable central venous pressure measuring device further includes an exhaust pipe formed by sequentially connecting an exhaust steel needle, a hose and a gas filter.

The advantages of the disposable central venous pressure measuring device of the present utility model are:

1) Integrate the infusion set, ruler, three-way device and extension tube into one, overcome the shortcomings of the original pressure measuring device, such as complex connection, many joints, easy to fall off, leading to adverse consequences, and effectively reduce complications;

2) The connection is convenient, with obvious marks, which simplifies the operation process of measuring central venous pressure, and is easy to learn and understand;

3) The pipes connected to the atmosphere have filter screens, which reduces pollution and ensures safe operation;

4) The extension tube is designed to be more than 70cm, which is an appropriate length for the patient to turn over. It is connected to the deep vein catheter with a No. 9 needle. During measurement, the value of CVP can be quickly measured, which effectively saves time and improves work efficiency;

5) The regulator on the infusion tube can replace the infusion set for rapid infusion;

6) Save materials and effectively reduce costs, thereby reducing the burden on patients.

Description of drawings

Fig. 1 is a schematic structural diagram of a disposable central venous pressure measuring device of the present invention.

Detailed ways

In order to better understand the technical solution of the present utility model, it will be described in detail below through specific embodiments in conjunction with the accompanying drawings:

Please refer to Fig. 1, the disposable central venous pressure measuring device of the present utility model comprises a bottle insertion needle 1, an infusion hose 2, a Murphy's dropper 3, a flow regulator 4, a liquid medicine filter 5, an intravenous infusion needle 6, A three-way stopcock 7, an extension hose 8, a scale hose 9 and an exhaust pipe 11, wherein,

Bottle insertion needle 1, Murphy's dropper 3, and flow regulator 4 are sequentially connected through infusion hose 2;

The liquid medicine filter 5 and the intravenous infusion needle 6 are also connected through the infusion hose 2;

The upper end surface of the three-way cock valve 7 is provided with an arrow mark indicating its opening and closing position. One end of it is connected to the flow regulator 4 through the infusion hose 2, the other end is connected to one end of the extension hose 8, and the other end is connected to the scale. One end of the hose 9 is connected;

The other end of the extension hose 8 is connected to the liquid medicine filter 5, and the length of the extension hose 8 is 700-750mm;

The other end of the scale hose 9 is connected to a filter screen 10, and it is provided with a scale mark on the pipe wall along the length direction. The scale mark ranges from -15cm to 35cm, and the unit scale is 1mm. A dark background is provided on the tube wall surface opposite to the line, preferably a dark blue background is provided on the tube wall surface, and the scale mark line is set to a light color (preferably yellow), and the scale mark line is set to The 0 scale marking line of the instrument is set to a bright color different from other scale marking lines (preferably red), so that the operator can clearly read the reading during use. The length of the scale hose 9 is 650-750mm.

The exhaust pipe 11 is composed of an exhaust steel needle 12, a hose 13 and a gas filter 14 connected in sequence.

The usage method of the disposable central venous pressure measuring device of the present utility model is:

First the infusion hose 2 and the exhaust pipe 10 are connected with the measuring liquid (generally 0.9% sodium chloride injection), and the air in all the lumens of the disposable three-way central venous pressure measuring device is exhausted; The tube 8 is connected and fixed to the deep vein catheter of the patient; then the ruler hose 9 is vertically fixed on the infusion rod, the patient is in a supine position, and the "0" scale of the ruler hose 9 is aligned with the fourth rib of the patient's right midaxillary line. The right atrium is flush with each other. When measuring, adjust the opening and closing position of the three-way cock valve 7 according to the arrow on the three-way cock valve 7, first close the end tube of the extension hose 8, make the infusion hose 2 communicate with the scale hose 9, when the scale hose 9 When the liquid level in the medium rises to the scale mark line of 35cm, close the end of the infusion hose 2 and connect the scale hose 9 with the extension hose 8. At this time, pay attention to observe the liquid level in the scale hose 9. When the liquid level no longer drops The reading of the scale on the scale flexible pipe 9 corresponding to the time is the central venous pressure value of the patient at this time. After the reading is finished, adjust the three-way stopcock 7 to the central position, and all pipelines are in a closed state.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the utility model, rather than as a limitation to the utility model, as long as within the spirit of the utility model, the above-mentioned The changes and modifications of the embodiments will all fall within the scope of the claims of the present utility model.

Claims (6)

1. disposable measurement of central venous pressure device, comprise needle for inserting bottle, Mo Feishi dropper, flow regulator, liquid medicine filter and venoclysis needle, described needle for inserting bottle connects Mo Feishi dropper and flow regulator successively by infusion tube, described liquid medicine filter is connected by infusion tube with venoclysis needle, it is characterized in that, it comprises that also a threeway plug valve, prolongs a flexible pipe and a scale flexible pipe

One of described threeway plug valve the other end is connected with one that prolongs flexible pipe by infusion tube connection traffic actuator, and one of a stature and scale flexible pipe is connected in addition;

The other end of described prolongation flexible pipe is connected with liquid medicine filter;

Described scale flexible pipe is provided with scale mark on tube wall along its length and the other end connects a drainage screen.

2. disposable measurement of central venous pressure device according to claim 1 is characterized in that, the scale mark scope on the described scale flexible pipe is at-15cm～35cm, and the unit scale is 1mm.

3. disposable measurement of central venous pressure device according to claim 1 and 2, it is characterized in that, described scale flexible pipe be provided with dark background with the opposing tube wall of scale mark line, and the scale mark line is made as light color, and 0 scale mark line in the scale mark line is made as the bright color different with other scale mark line.

4. disposable measurement of central venous pressure device according to claim 1 and 2 is characterized in that the length of described scale flexible pipe is 650～750mm, and the length of described prolongation flexible pipe is 700～750mm.

5. disposable measurement of central venous pressure device according to claim 1 is characterized in that the upper surface of described threeway plug valve is provided with the arrow labelling that shows its opened and closed positions.

6. disposable measurement of central venous pressure device according to claim 1 is characterized in that, also comprises by connecting the exhaustor that aerofluxus draw point, flexible pipe and pneumatic filter constitute successively.