CN205144575U - Radial artery blood sampling device - Google Patents

Abstract

The utility model relates to a radial artery blood collection device, which comprises an indwelling needle, an infusion tube and a positive pressure joint arranged on the infusion tube. Infusion tube, extension tube and pressure bag, the first channel of the tee is connected to the infusion tube, the second channel is connected to the extension tube, the third channel is connected to the pressure bag, and the third channel is also connected to the pressure sensor, which is connected to the monitor. The end of the extension tube is connected to the syringe, the pressurized bag is filled with light heparin, and the three-way is equipped with a valve, which controls the connection between the infusion tube and the extension tube, the connection between the extension tube and the pressurized bag, or the infusion The connection of the tube to the pressurized bag. The utility model can collect blood for children multiple times without needles in the whole process, and keep the patient's wrist stable to facilitate blood collection. At the same time, the patient's blood pressure can be monitored in real time, which is convenient for the hospital to establish a patient's disease file database more intuitively.

Description

A radial artery blood collection device

technical field

The utility model relates to a medical device, in particular to a radial artery blood sampling device.

Background technique

In children's hospitals, arterial blood collection for pediatric patients is one of the commonly used nursing operations in clinical work. The hospital needs to confirm the patient's physical condition based on the collected blood samples, and determine the next treatment plan based on the data of the blood samples. At present, critically ill patients, Invasive arterial blood pressure monitoring will be performed on mechanically ventilated patients and patients with unstable hemodynamics. Radial artery catheterization is often selected for arterial catheterization in such patients, and a pressure bag is usually used to pump the configured dilute heparin into the artery. In order to prevent blood backflow and blockage of the catheter, the conventional method for blood collection from the radial artery of this type of patients is to first clamp the indwelling needle (that is, the arterial catheter), disconnect the arterial pressure measuring device, and draw a part of it with a syringe. When the blood comes out, take out the heparin and part of the blood in the arterial catheter, and then change a syringe to start the formal blood collection. The patient needs to puncture at least twice for each blood collection. Frequent puncture of the artery may easily cause infection at the puncture site and local hematoma , arterial thromboembolism and even pseudoaneurysm and other complications, and for patients who are seriously ill and hospitalized in the hospital, arterial blood sampling is basically required every day to draw blood samples for analysis. Obviously, it is not appropriate to collect blood in this way every time. In addition to the analysis, the blood pressure will be monitored. However, the current methods are relatively traditional. They are all recorded after the pressure is measured by a non-invasive manometer. It is easy to increase the pain of the patient when the patient is on a drip. On the one hand, it cannot real-time The blood pressure status of the patient is dynamically monitored. On the other hand, the measured data is greatly affected by the outside world and the patient itself and may not be accurate.

In addition, it is necessary to keep the wrist stable when taking blood from the radial artery. At present, medical staff usually use medical bandages to fix the arterial catheter to the wrist, and the stability of the wrist itself needs to be controlled by the patient. Generally, the control of the wrist is unstable. , It will lead to the need for re-arterial catheterization, which will increase the pain of the patient and increase the workload of the medical staff.

Utility model content

The utility model aims to provide a radial artery blood sampling device.

In order to achieve the purpose of the above-mentioned utility model, the utility model adopts the following technical scheme, a radial artery blood collection device, including an indwelling needle, an infusion tube and a positive pressure joint arranged on the infusion tube, and the infusion tube is additionally connected to an extension tube through a tee and the pressurized bag, the three channels of the tee are respectively connected to the infusion tube, the extension tube and the pressurized bag, the first channel of the three-way is connected to the infusion tube, the second channel is connected to the extension tube, and the third channel is connected to the pressurized bag. The three channels are also connected to the pressure sensor, the pressure sensor is connected to the monitor, the end of the extension tube is connected to the syringe, the configured light heparin is added in the pressurized bag, and a valve is provided in the three-way, and the infusion is controlled by the three-way valve The communication between the tube and the extension tube, the communication between the extension tube and the pressurized bag, or the communication between the infusion tube and the pressurized bag.

Preferably, a fixed spacer is provided below the indwelling needle.

Preferably, the fixed pad includes a pad body, the upper surface of the pad body is provided with a slot, and a sponge pad is movable in the slot.

Preferably, a cover plate covering the slot is provided above the fixed pad, and the cover plate is locked on the pad through buckles on both sides of the slot.

The radial artery blood collection device designed by the utility model includes an indwelling needle and a positive pressure joint on the infusion tube. The indwelling needle is placed in the radial artery of patients with continuous invasive artery monitoring, because patients with continuous invasive artery monitoring will use pressurized The prepared light heparin bag is pressurized and pumped into the arterial catheter to prevent blood backflow. Therefore, when drawing blood, a part of the blood is usually drawn first to extract the heparin. The three channels of the tee are respectively connected to the infusion tube, the extension tube and the pressurized bag. There is a valve inside the tee. The syringe is pulled outwards to match the blood pressure of the human body. At this time, part of the blood with heparin in the body will be transported to the extension tube through the infusion tube. Under the action of heparin, this part of the blood in the extension tube will not coagulate. After the initial blood collection is completed , turn the three-way valve to connect the pressurized bag with the extension tube, and the infusion tube is not connected to the other two channels. At this time, a syringe can be used to complete the blood collection through the positive pressure joint set on the infusion tube. Press the joint, turn the three-way valve to connect the infusion tube with the extension tube, push the syringe at the end of the extension tube inward to push the blood back into the body, and then turn the three-way valve infusion tube to communicate with the pressurized bag. The lower blood returns to the body to prevent blood backflow, so that a set of devices can carry out multiple blood collections, and the whole process is needle-free, without needle-stick injuries. It is not necessary to use at least two blood collection needles for each blood collection, avoiding cross-infection, At the same time, the blood with heparin drawn out every time does not need to be discarded every time, and can still be returned to the human body to prevent the patient from taking too much blood and affecting his health. In addition, the third channel of the three-way connection is also connected to a pressure sensor, which is connected to a monitor. The pressure sensor at the tee can monitor the patient's blood pressure in real time and feed it back to the monitor. The nurse can know the patient's physiological condition at any time, which is convenient for the hospital to establish the patient's condition file database more intuitively. Considering that the radial artery is located at the wrist, The indwelling needle is likely to fall off when the child patient shakes. The utility model is equipped with a fixed pad. The upper surface of the fixed pad body is provided with a card slot, and a sponge pad is movable in the slot, so that the patient puts his hand in the slot of the pad. It is enough to prevent the patient's hand from shaking left and right, and a cover plate is also provided on the top of the pad to prevent the patient's hand from shaking up and down.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

In the figure: 1. Indwelling needle; 2. Infusion tube; 3. Positive pressure connector; 4. Tee; 5. Extension tube; 6. Pressure bag; 7. First channel; 8. Second channel; 9. Three channels; 10, pressure sensor; 11, monitor; 12, syringe; 13, block body; 14, slot; 15, sponge pad; 16, cover plate; 17, buckle.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise stipulated and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be The internal communication between two elements may be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

The following describes a radial artery blood collection device according to an embodiment of the present invention with reference to FIG. Connect the extension tube 5 and the pressurized bag 6, the three channels of the tee 4 are respectively connected to the infusion tube 2, the extension tube 5 and the pressurized bag 6, the first channel 7 of the tee 4 is connected to the infusion tube 2, and the second channel 8 is connected to the The extension tube 5, the third channel 9 is connected to the pressurized bag 6, and the third channel 9 is also connected to the pressure sensor 10, the pressure sensor 10 is connected to the monitor 11, the end of the extension tube 5 is connected to the syringe 12, and the pressurized bag 6 Prepared light heparin is added inside, and there is a valve in the three-way 4, and the three-way 4 controls the connection between the infusion tube 2 and the extension tube 5, the connection between the extension tube 5 and the pressurized bag 6, or the connection between the infusion tube 2 and the pressure bag 6 through the valve. The communication of pressure bag 6.

Preferably, a fixed pad is provided below the indwelling needle 1 .

As a preference, the fixed pad includes a pad body 13 , the upper surface of the pad body 13 is provided with a slot 14 , and a sponge pad 15 is movable in the slot 14 .

Preferably, a cover plate 16 covering the slot 14 is provided above the fixed pad, and the cover plate 16 is locked on the pad through buckles 16 on both sides of the slot 14 .

The radial artery blood collection device designed by the utility model includes an indwelling needle and a positive pressure joint on the infusion tube. The indwelling needle is placed in the radial artery of patients with continuous invasive artery monitoring, because patients with continuous invasive artery monitoring will use pressurized The prepared light heparin bag is pressurized and pumped into the arterial catheter to prevent blood backflow. Therefore, when drawing blood, a part of the blood is usually drawn first to extract the heparin. The three channels of the tee are respectively connected to the infusion tube, the extension tube and the pressurized bag. There is a valve inside the tee. The syringe is pulled outwards to match the blood pressure of the human body. At this time, part of the blood with heparin in the body will be transported to the extension tube through the infusion tube. Under the action of heparin, this part of the blood in the extension tube will not coagulate. After the initial blood collection is completed , turn the three-way valve to connect the pressurized bag with the extension tube, and the infusion tube is not connected to the other two channels. At this time, a syringe can be used to complete the blood collection through the positive pressure joint set on the infusion tube. Press the joint, turn the three-way valve to connect the infusion tube with the extension tube, push the syringe at the end of the extension tube inward to push the blood back into the body, and then turn the three-way valve infusion tube to communicate with the pressurized bag. The lower blood returns to the body to prevent blood backflow, so that a set of devices can carry out multiple blood collections, and the whole process is needle-free, without needle-stick injuries. It is not necessary to use at least two blood collection needles for each blood collection, avoiding cross-infection, At the same time, the blood with heparin drawn out every time does not need to be discarded every time, and can still be returned to the human body to prevent the patient from taking too much blood and affecting his health. In addition, the third channel of the three-way connection is also connected to a pressure sensor, which is connected to a monitor. The pressure sensor at the tee can monitor the patient's blood pressure in real time and feed it back to the monitor. The nurse can know the patient's physiological condition at any time, which is convenient for the hospital to establish the patient's condition file database more intuitively. Considering that the radial artery is located at the wrist, The indwelling needle is likely to fall off when the child patient shakes. The utility model is equipped with a fixed pad. The upper surface of the fixed pad body is provided with a card slot, and a sponge pad is movable in the slot, so that the patient puts his hand in the slot of the pad. It is enough to prevent the patient's hand from shaking left and right, and a cover plate is also provided on the top of the pad to prevent the patient's hand from shaking up and down.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or examples are included in the present invention. In at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (4)

1. A radial artery blood collection device, comprising an indwelling needle, an infusion tube and a positive pressure joint arranged on the infusion tube, characterized in that, the infusion tube is connected to an extension tube and a pressurized bag through a three-way connection, and the three-way connection of the three-way The first channel of the tee is connected to the infusion tube, the second channel is connected to the extension tube, the third channel is connected to the pressurized bag, and the third channel is also connected to the pressure sensor. Connect the monitor, the end of the extension tube is connected to the syringe, the configured light heparin is added in the pressurized bag, a valve is provided in the three-way, and the three-way controls the communication between the infusion tube and the extension tube through the valve, and the extension tube Communication with pressurized bag or communication of infusion tube with pressurized bag. 2 . The blood collection device according to claim 1 , wherein a fixed pad is provided below the indwelling needle. 3 . 3 . The blood collection device according to claim 2 , wherein the fixed block includes a block body, the upper surface of the block body is provided with a slot, and a sponge pad is movable in the slot. 4 . 4 . The blood collection device according to claim 3 , wherein a cover plate is provided above the fixed pad to cover the slot, and the cover plate is locked on the pad by buckles on both sides of the slot. 5 .