CN220833758U - An infusion set for measuring central venous pressure - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to an infusion apparatus for measuring central venous pressure, which is connected with a central venous catheter and a physiological saline bag when in use and comprises an infusion tube, wherein one end part of the infusion tube is connected with the physiological saline bag, and the other end part of the infusion tube is connected with the central venous catheter; along the flow direction of the normal saline, a dropping funnel for storing liquid and scale marks for monitoring the central venous pressure value are sequentially arranged on the infusion tube; the infusion tube is sleeved with a regulating valve for regulating the flow rate of the infusion tube, and the regulating valve is positioned at one side of the dropping funnel close to the scale mark. The infusion apparatus for measuring the central venous pressure integrates the graduated scale and the infusion tube, can finish measurement without preparing the graduated scale additionally, and can finish measurement by only one doctor.

Description

An infusion set for measuring central venous pressure

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an infusion set for measuring central venous pressure.

Background technique

Central venous pressure refers to the pressure of the superior vena cava or the inferior vena cava. Central venous pressure can, to a certain extent, reflect the comprehensive conditions of the patient's effective blood volume, cardiac function, and vascular tension at the time of pressure measurement. Continuously measuring the changes in central venous pressure can dynamically understand the changes in blood volume and judge the heart's tolerance to fluid infusion. It is an important reference indicator for regulating infusion therapy.

The existing traditional measurement tools for central venous pressure are mostly infusion sets without air filters and scales or other measuring tools with scale lines. Medical staff locate the patient at the fourth intercostal space (right atrium position) on the right side of the axillary line, hold the ruler with the zero scale line at the same level as the positioning point, and the ruler is perpendicular to the patient's body, and the infusion set and the ruler are in a horizontal line. Refer to the ruler value to find the fluctuation range of the liquid in the infusion set.

When measuring central venous pressure, two people are required to cooperate to complete the operation. In clinical practice, the length of the conventional infusion strap is about 160cm, which is relatively long. During the pressure measurement process, one staff member needs to place the zero scale line of the ruler at the predetermined position, keeping the ruler perpendicular to the patient's body; one staff member holds the upper end of the infusion set, opens the infusion set regulating valve, and keeps the infusion set strap and the ruler in a horizontal line.

Therefore, it is very important to provide an infusion tube that can measure central venous pressure by one person.

Utility Model Content

In order to solve the above problems, the purpose of the utility model is to provide an infusion set for measuring central venous pressure, which is connected to the central venous catheter and the saline bag when in use, and includes an infusion tube, one end of which is connected to the saline bag, and the other end is connected to the central venous catheter; along the flow direction of the saline, the infusion tube is provided with a drip bucket for storing liquid and a scale line for monitoring the central venous pressure value in sequence; the infusion tube is provided with a regulating valve for adjusting the flow rate of the infusion tube, and the regulating valve is located on the side of the drip bucket close to the scale line. The utility model combines the scale and the infusion tube into one, and the measurement can be completed without preparing a separate scale, and only one medical staff is required to complete it.

The purpose of the utility model can be achieved through the following technical solutions:

The utility model provides an infusion set for measuring central venous pressure, which is connected with a central venous catheter and a physiological saline bag when in use, and comprises an infusion tube,

One end of the infusion tube is connected to a physiological saline bag, and the other end is connected to a central venous catheter;

Along the flow direction of the physiological saline, a drip bucket for storing liquid and scale lines for monitoring the central venous pressure value are sequentially arranged on the infusion tube;

The infusion tube is sleeved with a regulating valve for adjusting the flow rate of the infusion tube, and the regulating valve is located on a side of the drip bucket close to the scale line.

In one embodiment of the present invention, the length of the infusion tube is 90 cm to 110 cm.

In one embodiment of the present invention, the infusion tube includes a first infusion tube, a second infusion tube, a third infusion tube and a fourth infusion tube which are integrally arranged and sequentially connected.

In one embodiment of the utility model, the length of the first infusion tube is 25 cm to 35 cm, which is convenient for clinical staff to locate the position of the mid-axillary line.

In one embodiment of the present utility model, the first infusion tube, the third infusion tube and the fourth infusion tube are all transparent tubes.

In one embodiment of the utility model, the outer surface of the second infusion tube is provided with scale lines to facilitate clinical staff to observe the fluctuation range of the liquid in the pipeline.

In one embodiment of the present invention, the length of the second infusion tube is 20 cm to 25 cm (with reference to the numerical range of clinical central venous pressure, the maximum scale range is set to 20 cmH ₂ O to 25 cmH ₂ O).

In one embodiment of the present utility model, a hollow connector is provided at the end of the first infusion tube away from the second infusion tube;

The first connecting tube is connected to the central venous catheter via a connecting piece.

In one embodiment of the present invention, a drip bucket is provided at the end of the fourth infusion tube connected to the third infusion tube, and a hollow plug is provided at the end away from the third infusion tube.

In one embodiment of the present invention, the plug is a plastic plug.

In one embodiment of the present invention, the fourth infusion tube is connected to the physiological saline bag via a plug, and the plug is used to pierce the physiological saline bag and extend into the interior thereof.

Compared with the prior art, the utility model has the following beneficial effects:

(1) Simple operation, few tools required: The infusion tube is equipped with scale marks, so there is no need to prepare a scale ruler or other scale tools, which reduces the preparation of items during operation.

(2) Accurate measurement: The infusion tube is equipped with scale lines, which are clear at a glance. Medical staff can read the readings directly without referring to a ruler or other scale tools.

(3) Reduce manpower: The total length of the infusion tube is about 100 cm, which is about 60 cm shorter than the conventional infusion tube. This ensures that one medical staff member can complete the measurement of central venous pressure, eliminating the need for two personnel to complete the operation, thus reducing manpower.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an infusion set for measuring central venous pressure according to the present invention;

Numbers in the figure: 1. first infusion tube; 2. second infusion tube; 3. third infusion tube; 4. fourth infusion tube; 5. connector; 6. plug; 7. scale line; 8. regulating valve; 9. drip bucket; 10. zero scale point; 11. maximum scale point.

Detailed ways

The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Example 1

This embodiment provides an infusion set for measuring central venous pressure, which is connected to a central venous catheter and a physiological saline bag when in use, as shown in FIG1 , and includes an infusion tube, one end of which is connected to the physiological saline bag, and the other end of which is connected to the central venous catheter;

Along the flow direction of the physiological saline, a drip bucket 9 for storing liquid and a scale line 7 for monitoring the central venous pressure value are sequentially arranged on the infusion tube;

The infusion tube is sleeved with a regulating valve 8 for adjusting the flow rate of the infusion tube, and the regulating valve 8 is located on a side of the drip bucket 9 close to the scale line 7 .

Furthermore, the length of the infusion tube is 90 cm to 110 cm.

Furthermore, the infusion tube includes a first infusion tube 1, a second infusion tube 2, a third infusion tube 3 and a fourth infusion tube 4 which are integrated and connected in sequence; the length of the first infusion tube 1 is 25 cm to 35 cm, which is convenient for clinical staff to locate the position of the mid-axillary line; the first infusion tube 1, the third infusion tube 3 and the fourth infusion tube 4 are all transparent tubes; the outer surface of the second infusion tube 2 is provided with a scale line 7 (the position connecting the first infusion tube 1 is the zero scale point 10, and the position connecting the third infusion tube 3 is the maximum scale point 11) so that clinical staff can observe the range of liquid fluctuations in the pipeline; the length of the second infusion tube 2 is 20 cm to 25 cm (refer to the numerical range of clinical central venous pressure, the maximum scale range is set to 20 cmH ₂ O to 25 cmH ₂ O); a hollow connector 5 is provided at the end of the first infusion tube 1 away from the second infusion tube 2, and the first connecting tube is connected to the central venous catheter through the connector 5; a drip bucket 9 is provided at the end of the fourth infusion tube 4 connected to the third infusion tube 3, and a hollow plug 6 (plastic plug) is provided at the end away from the third infusion tube 3; the fourth infusion tube 4 is connected to the physiological saline bag through the plug 6, and the plug 6 is used to pierce the physiological saline bag and extend into the interior thereof.

Preferably, the outer surface of the second infusion tube 2 is provided with scale lines 7 with black characters on a white background, so that the scale lines 7 are clearer and convenient for medical personnel to check.

When in use, the medical staff opens the infusion tube package and, according to the traditional central venous pressure measurement method, connects the upper end of the infusion set to the saline bag to complete the exhaust work of the infusion tube, and connects the lower end of the infusion tube to the central venous catheter; locates the fourth intercostal space of the patient's right mid-axillary line, separates the saline bag and the infusion tube; the medical staff holds the infusion tube with one hand to align the zero scale point 10 position with the positioning point, holds the upper end of the infusion tube with the other hand, and keeps the infusion tube perpendicular to the patient's body; opens the regulating valve 8 to the maximum, and when the liquid level in the infusion tube no longer drops and the liquid level fluctuates within 0.5 cm, the patient's central venous pressure value can be read.

The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the interpretation of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims (5)

1. An infusion set for measuring central venous pressure, which is connected to a central venous catheter and a physiological saline bag when in use, and is characterized in that it comprises an infusion tube, One end of the infusion tube is connected to a physiological saline bag, and the other end is connected to a central venous catheter; Along the flow direction of the physiological saline, a drip bucket (9) for storing liquid and a scale line (7) for monitoring the central venous pressure value are sequentially arranged on the infusion tube; The infusion tube is sleeved with a regulating valve (8) for regulating the flow rate of the infusion tube, and the regulating valve (8) is located on a side of the drip bucket (9) close to the scale line (7); The length of the infusion tube is 90 cm to 110 cm; the infusion tube comprises a first infusion tube (1), a second infusion tube (2), a third infusion tube (3) and a fourth infusion tube (4) which are arranged in an integrated manner and connected in sequence; the length of the first infusion tube (1) is 25 cm to 35 cm; the outer surface of the second infusion tube (2) is provided with scale lines (7); the length of the second infusion tube (2) is 20 cm to 25 cm. 2. An infusion set for measuring central venous pressure according to claim 1, characterized in that the first infusion tube (1), the third infusion tube (3) and the fourth infusion tube (4) are all transparent tubes. 3. An infusion set for measuring central venous pressure according to claim 1, characterized in that a hollow connector (5) is provided at the end of the first infusion tube (1) away from the second infusion tube (2); The first infusion tube (1) is connected to the central venous catheter via a connector (5). 4. An infusion device for measuring central venous pressure according to claim 1, characterized in that a drip bucket (9) is provided at the end of the fourth infusion tube (4) connected to the third infusion tube (3), and a hollow plug (6) is provided at the end away from the third infusion tube (3). 5. An infusion set for measuring central venous pressure according to claim 4, characterized in that the fourth infusion tube (4) is connected to the physiological saline bag through a plug (6).