CN215227581U

CN215227581U - Disposable prefilling type central venous pressure measurer

Info

Publication number: CN215227581U
Application number: CN202121395017.3U
Authority: CN
Inventors: 鞠莹; 顾怡青; 卢秀清
Original assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-21
Anticipated expiration: 2031-06-23

Abstract

Disposable pre-filling formula central venous pressure caliber, including the normal saline pipe, normal saline pipe upper end fixed mounting has the three-way pipe, the one end swing joint of three-way pipe has the lid that opens and shuts, the other end of three-way pipe has the spiral cover through screw thread swing joint, normal saline pipe lower extreme fixed connection measures the one end of pipeline, the other end of measuring the pipeline is provided with the screw connector, screw connector inner chamber fixed mounting has filter paper, it is provided with flexible dipperstick to measure pipeline surface, the fixed buckle of flexible dipperstick upper end fixedly connected with, flexible dipperstick is at the measurement pipeline surface through the fixed buckle fixed mounting of fixing the dipperstick. The utility model overcomes prior art's is not enough, fixes flexible dipperstick at survey pipeline surface through fixed buckle, can follow flexible dipperstick axial direction vertical downwards in order to guarantee to measure the pipeline through the counter weight buckle to reduce measuring error.

Description

Disposable prefilling type central venous pressure measurer

Technical Field

The utility model relates to a human articles for daily use especially relate to medical instrument, specifically are disposable pre-filling formula central venous pressure caliber.

Background

Central Venous Pressure (CVP), which is the pressure at the entrance of the superior and inferior vena cava into the right atrium, is one of the main indicators for clinical observation of hemodynamics, measured by the superior and inferior vena cava or right atrial catheter. The determination of CVP is of great significance to the understanding of effective circulating blood volume and cardiac function.

The current commonly used method for measuring CVP is that an infusion support is arranged at the side of a patient bed, an adhesive plaster is vertically pasted along the pole of the infusion support, the position of the zero point of the patient is marked, a pressure measuring pipe is fixed beside the adhesive plaster, and the numerical value is measured by a ruler or during measurement. And the ruler for measurement needs to be held by a nurse, and the verticality cannot be guaranteed. And the needle head part at the upper end of the transfusion tube is heavier, the mobility is large, and pollution and needle stick injury are easy to occur. And because the reason of transfer line material and packing, there is the bending, needs both hands to hold transfer line and chi and keep the pipeline straight, and can not predetermine the value of patient's central venous pressure when measuring for the first time, probably needs the handheld transfer line of longer time and chi, and is more laborious. But also occupies an infusion support and wastes 100ml of physiological saline.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a disposable pre-filling formula central venous pressure caliber has overcome the not enough of prior art, reasonable in design, through at the intraductal pre-filling normal saline of normal saline, reduces the consumption of large capacity normal saline in bags, fixes flexible dipperstick at survey pipeline surface through fixed buckle, through the counter weight buckle in order to guarantee that the measurement pipeline can follow flexible dipperstick axial direction vertically downwards to reduce measuring error.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the disposable prefilled central venous pressure measurer comprises a physiological saline pipe, a three-way pipe is fixedly mounted at the upper end of the physiological saline pipe, an opening-closing cover is movably connected to one end of the three-way pipe, a spiral cover is movably connected to the other end of the three-way pipe through threads, the lower end of the physiological saline pipe is fixedly connected with one end of a measuring pipeline, a spiral connector is arranged at the other end of the measuring pipeline, filter paper is fixedly mounted in the inner cavity of the spiral connector, a telescopic measuring scale is arranged on the outer surface of the measuring pipeline, a fixing buckle is fixedly connected to the upper end of the telescopic measuring scale, and the telescopic measuring scale is fixedly mounted on the outer surface of the measuring pipeline through the fixing buckle.

Preferably, the telescopic measuring scale is fixedly connected with a counterweight buckle below, and the counterweight buckle is sleeved on the outer surface of the measuring pipeline.

Preferably, the sealing gasket is fixedly arranged on the circumferential position of the inner surface of the opening and closing cover and the inner cavity of the screw cover.

Preferably, the telescopic measuring scale is formed by sequentially splicing 4 sections of straight scales from inside to outside, the two ends of each section of straight scale are equally divided and are respectively provided with a limiting groove and a limiting bulge, and the limiting grooves and the limiting bulges between the two adjacent sections of straight scales are matched.

Preferably, the measuring range of the telescopic measuring ruler after being unfolded is 0-20 cm.

The utility model provides a disposable pre-filled central venous pressure caliber. The method has the following beneficial effects: the normal saline is pre-filled in the normal saline pipe, so that the consumption of the bagged large-capacity normal saline is reduced, and the normal saline can be re-filled through the screw cap of the three-way pipe at the upper end of the normal saline pipe when necessary. The filter paper is fixedly arranged in the inner cavity of the spiral connector, so that the flow of the physiological saline can be automatically stopped when the physiological saline reaches the end of the filter paper; and is designed through a spiral interface to prevent slipping. Fix flexible dipperstick at survey pipeline surface through fixed buckle, can follow the vertical downwards of flexible dipperstick axial direction through the counter weight buckle in order to guarantee to measure the pipeline to reduce measuring error.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a telescopic measuring scale of the present invention;

the reference numbers in the figures illustrate:

1. a physiological saline tube; 2. a three-way pipe; 3. opening and closing the cover; 4. a screw cap; 5. measuring a pipeline; 6. a screw interface; 7. filtering paper; 8. a telescopic measuring scale; 9. fixing the buckle; 10. a counterweight buckle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.

Embodiment one, as shown in fig. 1-2, disposable pre-filled central venous pressure measurer, including saline pipe 1, saline pipe 1 upper end fixed mounting has three-way pipe 2, the one end swing joint of three-way pipe 2 has lid 3, the other end of three-way pipe 2 has spiral cover 4 through screw thread swing joint, the one end of saline pipe 1 lower extreme fixed connection measuring tube way 5, the other end of measuring tube way 5 is provided with

screw connector

6, 6 inner chamber fixed mounting on the screw connector has filter paper 7, measuring tube way 5 surface is provided with flexible dipperstick 8, the fixed buckle 9 of 8 upper ends fixedly connected with of flexible dipperstick, flexible dipperstick 8 is through fixed buckle 9 fixed mounting at measuring tube way 5 surface.

The working principle is as follows:

the method comprises the steps that firstly, a spiral cover 4 is opened, physiological saline is pre-filled into a physiological saline pipe 1, when the device is used, a telescopic measuring scale 8 is fixed on the surface of a measuring pipeline 5 through a fixing buckle 9, the zero scale of the telescopic measuring scale 8 is aligned with the liquid level of the physiological saline in the measuring pipeline, then, a spiral connector 6 is connected with a central venous pipeline, the physiological saline is input into a central vein, and when the liquid level does not descend any more, the numerical value of the scale on the telescopic measuring scale 8 is read, namely, the central venous pressure is obtained; is convenient and quick.

In this embodiment, the volume of the physiological saline tube 1 is 20ml, and the consumption of the bagged large volume of physiological saline is reduced by pre-filling the physiological saline tube 1 with physiological saline, and the physiological saline can be re-filled through the screw cap 4 of the tee pipe 2 at the upper end of the physiological saline tube 1 when necessary. The diameter of the measuring pipeline 5 is the same as that of a common infusion apparatus, the length of the measuring pipeline is 60cm, and the filter paper 7 is fixedly arranged in the inner cavity of the spiral connector 6, so that the flow of the physiological saline can be automatically stopped when the physiological saline reaches the end of the filter paper 7; and is designed by a screw interface 6 to prevent slipping.

In the second embodiment, as a further scheme of the first embodiment, a counterweight buckle 10 is fixedly connected below the telescopic measuring scale 8, and the counterweight buckle 10 is sleeved on the outer surface of the measuring pipeline 5. Through counter weight buckle 10 in order to guarantee that measuring pipe 5 can be along 8 vertical downwardly directions of flexible dipperstick to reduce measuring error.

In the third embodiment, as a further scheme of the first embodiment, the sealing gaskets are fixedly arranged on the circumferential position of the inner surface of the opening and closing cover 3 and the inner cavity of the screw cover 4. The opening and closing cover 3 is opened to allow the meter to communicate with the atmosphere. The sealing gasket is arranged to ensure the sealing performance of the opening and closing cover 3 and the screw cover 4 when the opening and closing cover is closed, so as to prevent pollution.

Fourth embodiment, as the further scheme of first embodiment, flexible dipperstick 8 is pegged graft from inside to outside in proper order by 4 sections rulers and is constituteed, and the both ends of every section ruler are equallyd divide and are do not be provided with spacing groove and spacing arch, and spacing groove and spacing arch between two adjacent sections rulers cooperate. And the measuring range of the telescopic measuring scale 8 after being unfolded is 0-20 cm. And the scale marks are accurate to millimeters, the size is reduced through the telescopic design, when the ruler is used, the rulers are sequentially pulled out from inside to outside, and then the distances of all sections of the rulers are added, namely the length is measured. The limiting grooves and the limiting bulges between two adjacent sections of the straight edges are matched to prevent the straight edges from sliding and separating.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Disposable pre-filled central venous pressure measurer, its characterized in that: the device comprises a physiological saline pipe (1), wherein a three-way pipe (2) is fixedly mounted at the upper end of the physiological saline pipe (1), an opening and closing cover (3) is movably connected to one end of the three-way pipe (2), a spiral cover (4) is movably connected to the other end of the three-way pipe (2) through threads, the lower end of the physiological saline pipe (1) is fixedly connected with one end of a measuring pipeline (5), a spiral connector (6) is arranged at the other end of the measuring pipeline (5), filter paper (7) is fixedly mounted in the inner cavity of the spiral connector (6), a telescopic measuring scale (8) is arranged on the outer surface of the measuring pipeline (5), a fixed buckle (9) is fixedly connected to the upper end of the telescopic measuring scale (8), and the telescopic measuring scale (8) is fixedly mounted on the outer surface of the measuring pipeline (5) through the fixed buckle (9).

2. The disposable prefilled central venous pressure measuring device of claim 1, wherein: the telescopic measuring scale is characterized in that a counterweight buckle (10) is fixedly connected to the lower portion of the telescopic measuring scale (8), and the counterweight buckle (10) is sleeved on the outer surface of the measuring pipeline (5).

3. The disposable prefilled central venous pressure measuring device of claim 1, wherein: sealing gaskets are fixedly arranged on the circumferential position of the inner surface of the opening and closing cover (3) and the inner cavity of the screw cover (4).

4. The disposable prefilled central venous pressure measuring device of claim 1, wherein: the telescopic measuring scale (8) is formed by sequentially splicing 4 sections of straight scales from inside to outside, the two ends of each section of straight scale are equally divided and are respectively provided with a limiting groove and a limiting bulge, and the limiting groove and the limiting bulge between every two adjacent sections of straight scales are matched.

5. The disposable prefilled central venous pressure measuring device of claim 1, wherein: the measuring range of the telescopic measuring scale (8) after being unfolded is 0-20 cm.