Transfusion device capable of conveniently measuring central venous pressure

Abstract

The utility model discloses an infusion device capable of conveniently measuring central venous pressure, which relates to the field of medical instruments and comprises a bottle penetrating needle, a liquid flow regulator, a dropper, a filter base plate, a second three-way valve and an infusion tube, and the bottle penetrating needle, the second three-way valve, the dropper and the filter base plate are connected in series through the infusion tube. According to the utility model, the filter base plate is adhered to the skin of the vertical intersection point between the midaxillary line and the fourth rib of a patient, the infusion channel is closed by rotating the three-way valve II, the infusion tube is vertically tensioned, eyes are parallel to a liquid fluctuation plane, and the air filter is connected to the bottle penetrating needle; after the central venous pressure is measured every time, the second three-way valve is opened, the liquid is squeezed into the dropper without exhausting, and the filtering base plate directly filters air generated by measuring the central venous pressure and lowering the liquid, so that the working time of nurses is saved, and the working efficiency is improved. And pollution caused by disconnection of a connector of the infusion device is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and in particular relates to an infusion device for conveniently measuring central venous pressure. Background Art

[0002] Central venous pressure (CVP) is the pressure at the point where the superior and inferior vena cava enter the right atrium, and is measured through a catheter inserted into the superior and inferior vena cava or the right atrium. Central venous pressure measurement is the most commonly used technology in intensive care medicine and is of great significance for understanding effective circulating blood volume and cardiac function.

[0003] In the non-invasive central venous pressure measurement of clinical critically ill patients, a scaled infusion stand is required, or a ruler is fixed on the mobile infusion stand. A three-way device is installed on the capillary tube, and a catheter is connected for measurement. At the same time, the infusion stand is far away from the mid-axillary line, and a ruler is required to parallel the mid-axillary line and the level of the zero scale on the infusion stand. During the central venous pressure measurement process, the operation is rather cumbersome and wastes the time of clinical nurses.

[0004] Therefore, we propose an infusion device for conveniently measuring central venous pressure to solve the above problems. Utility Model Content

[0005] In view of the problem that the current non-invasive central venous pressure measurement of critically ill patients in clinical practice requires the use of multiple tools, which is cumbersome to operate and wastes the time of clinical nurses, the utility model provides an infusion device for conveniently measuring central venous pressure.

[0006] The solution adopted by the utility model to solve the technical problem is: an infusion device for conveniently measuring central venous pressure, comprising a bottle piercing needle, a liquid flow regulator, a dropper, a filter chassis, a second three-way valve and an infusion tube, wherein the bottle piercing needle, the second three-way valve, the dropper and the filter chassis are connected in series by the infusion tube;

[0007] The bottle-threading needle is connected to an air filter, the three-way valve 2 is located above the dropper, and the liquid flow regulator is slidably arranged on the infusion tube and located above the filter chassis.

[0008] The infusion tube is provided with a scale line, and the scale line is from the filter bottom plate as the zero scale point to the dropper;

[0009] It also includes an adhesive layer 1 and an adhesive layer 2, wherein the adhesive layer 1 is attached to the side of the filter bottom plate, and the adhesive layer 2 is attached to the skin at the vertical intersection of the patient's mid-axillary line and the fourth intercostal space;

[0010] The first adhesive layer and the second adhesive layer are detachably connected via a closing component.

[0011] Preferably, the closing component comprises a male Velcro and a female Velcro, and the male Velcro and the female Velcro are respectively installed on opposite surfaces of the adhesive layer 1 and the adhesive layer 2.

[0012] Preferably, the closing assembly comprises a sub-button and a female button, and the sub-button and the female button are respectively installed on the opposite surfaces of the adhesive layer 1 and the adhesive layer 2.

[0013] Preferably, it also includes a thin tube, a three-way valve 1 is installed between the thin tube and the infusion tube, and an intravenous infusion needle is installed at the end of the thin tube away from the three-way valve 1.

[0014] Preferably, a detachable capillary tube is installed at the bottom end of the infusion tube, and an intravenous infusion needle is arranged at the other end of the capillary tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model adheres the filter bottom plate to the skin at the vertical intersection of the patient's mid-axillary line and the fourth intercostal space, closes the infusion channel by turning the three-way valve 2, and vertically tightens the infusion tube, so that the eye is parallel to the liquid fluctuation plane until the liquid stops fluctuating and the patient's central venous pressure is obtained according to the scale. After each measurement of the central venous pressure and opening the three-way valve 2, the liquid is squeezed into the dropper without exhausting the air. The filter bottom plate directly filters the air generated by the drop of liquid when measuring the central venous pressure, thereby saving the nurse's working time and reducing the pollution caused by the disconnection of the infusion device interface.

[0017] 2. The utility model adheres the second adhesive layer to the skin at the vertical intersection of the patient's mid-axillary line and the fourth intercostal space, and the closing component can be quickly connected, which is convenient for quickly fixing the filter chassis and facilitating medical staff to repeat the central venous pressure measurement of the patient later. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 It is a right-side enlarged structural schematic diagram of the adhesive layer 1 and the adhesive layer 2 of the utility model.

[0020] In the figure: 1 bottle piercing needle, 2 air filter, 3 dropper, 4 infusion tube, 5 liquid flow regulator, 6 scale line, 7 filter chassis, 81 adhesive layer one, 82 male Velcro, 83 adhesive layer two, 84 female Velcro, 9 intravenous infusion needle, 10 capillary, 11 three-way valve one, 12 three-way valve two. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-2The utility model provides a technical solution for an infusion device for conveniently measuring central venous pressure:

[0023] Embodiment 1:

[0024] according to Figure 1 and Figure 2 As shown, it includes a bottle piercing needle 1, a liquid flow regulator 5, a dropper 3, a filter chassis 7, a three-way valve 12 and an infusion tube 4. The bottle piercing needle 1, the three-way valve 12, the dropper 3 and the filter chassis 7 are connected in series by the infusion tube 4. By setting the filter chassis 7, after each measurement of the central venous pressure and opening the three-way valve 12, the dropper 3 is squeezed into the liquid without exhausting. The filter chassis 7 directly filters the air generated by the measurement of the central venous pressure and the decrease of the liquid, which saves the working time of nurses and also reduces the pollution caused by the disconnection of the infusion device interface.

[0025] An air filter 2 is connected to the bottle piercing needle 1, and a three-way valve 12 is located above the dropper 3. By setting the three-way valve 12, the three-way valve 12 can be operated to close the infusion channel without separating the bottle piercing needle 1 from the liquid bottle, thereby preventing the bottle piercing needle 1 from being contaminated by the outside world.

[0026] The liquid flow regulator 5 is slidably disposed on the liquid infusion tube 4 and is located above the filter chassis 7 . The liquid flow regulator 5 is used to control the flow rate of the liquid in the liquid infusion tube 4 .

[0027] It also includes a thin tube 10, a three-way valve 11 is installed between the thin tube 10 and the infusion tube 4, and an intravenous infusion needle 9 is installed at the end of the thin tube 10 away from the three-way valve 11.

[0028] A scale line 6 is provided on the infusion tube 4, and the scale line 6 takes the filter bottom plate 7 as the zero scale point and extends to the dropper 3. By setting the scale line 6 on the infusion tube 4, the central venous pressure of the patient can be quickly measured according to the scale line 6 after the liquid stops fluctuating without the aid of a ruler.

[0029] It also includes adhesive layer 1 81 and adhesive layer 2 83. Adhesive layer 1 81 is adhered to the side of the filter chassis 7. By adhering adhesive layer 2 83 to the skin at the vertical intersection of the patient's mid-axillary line and the fourth intercostal space, the closing component can be quickly connected, which is convenient for rapid fixation of the filter chassis 7 and convenient for medical staff to repeat the central venous pressure measurement of the patient later.

[0030] The adhesive layer 1 81 and the adhesive layer 2 83 are detachably connected through a closing component. The specific structure of the closing component in this embodiment is: the closing component includes a male Velcro 82 and a female Velcro 84, and the male Velcro 82 and the female Velcro 84 are respectively installed on the opposite surfaces of the adhesive layer 1 81 and the adhesive layer 2 83.

[0031] When used specifically, the utility model provides an infusion device for conveniently measuring central venous pressure.

[0032] S1, connect the bottle-penetrating needle 1 to the liquid bottle, remove the capillary tube 10, and connect the three-way valve 11 to the central venous catheter connector implanted in the patient;

[0033] S2. When the patient needs to have the central venous pressure measured, the three-way valve 11 is used to close other infusion channels, leaving only the infusion tube 4 in circulation;

[0034] S3. Find the vertical intersection of the patient's mid-axillary line and the fourth intercostal space, and use the adhesive layer 83 to stick the filter chassis 7 at this position. Close the infusion channel by turning the three-way valve 12, and vertically tighten the infusion tube 4, with the eye parallel to the liquid fluctuation plane, until the liquid stops fluctuating and the patient's central venous pressure is obtained according to the scale.

[0035] S4. After the measurement is completed, open the three-way valve 12, squeeze the liquid into the dropper 3, and the filter bottom plate 7 will automatically exhaust the air to perform normal liquid infusion.

[0036] Embodiment 2:

[0037] Based on the first embodiment, the difference is as follows: the closing component includes a sub-button and a female button, and the sub-button and the female button are respectively installed on the opposite surfaces of the adhesive layer 1 81 and the adhesive layer 2 83.

[0038] Embodiment three:

[0039] Based on the first embodiment, the difference is as follows: a detachable capillary tube 10 is installed at the bottom end of the infusion tube 4, and an intravenous infusion needle 9 is provided at the other end of the capillary tube 10.

Claims

1. An infusion device for conveniently measuring central venous pressure, comprising a bottle piercing needle, a liquid flow regulator, a dropper, a filter chassis, a second three-way valve and an infusion tube, wherein the bottle piercing needle, the second three-way valve, the dropper and the filter chassis are connected in series by the infusion tube; The bottle-piercing needle is connected with an air filter, the three-way valve 2 is located above the dropper, and the liquid flow regulator is slidably arranged on the infusion tube and located above the filter chassis, and is characterized in that: The infusion tube is provided with a scale line, and the scale line is from the filter bottom plate as the zero scale point to the dropper; It also includes an adhesive layer 1 and an adhesive layer 2, wherein the adhesive layer 1 is attached to the side of the filter bottom plate, and the adhesive layer 2 is attached to the skin at the vertical intersection of the patient's mid-axillary line and the fourth intercostal space; The first adhesive layer and the second adhesive layer are detachably connected via a closing component.

2. The infusion device for conveniently measuring central venous pressure according to claim 1, characterized in that: The closing component comprises a male Velcro and a female Velcro, and the male Velcro and the female Velcro are respectively installed on the opposite surfaces of the first adhesive layer and the second adhesive layer.

3. The infusion device for conveniently measuring central venous pressure according to claim 1, characterized in that: The closure assembly comprises a sub-button and a female button, and the sub-button and the female button are respectively installed on the opposite surfaces of the adhesive layer 1 and the adhesive layer 2.

4. The infusion device for conveniently measuring central venous pressure according to claim 1, characterized in that: It also includes a thin tube, a three-way valve is installed between the thin tube and the infusion tube, and a venous infusion needle is installed at one end of the thin tube away from the three-way valve.

5. The infusion device for conveniently measuring central venous pressure according to claim 1, characterized in that: A detachable thin tube is installed at the bottom end of the infusion tube, and an intravenous infusion needle is arranged at the other end of the thin tube.

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