CN219782558U - An arterial blood collection device - Google Patents

Abstract

The utility model discloses an arterial blood collection device, which relates to the technical field of medical equipment and includes: a multi-channel pipe fitting, a channel valve, an extraction mechanism, an analysis mechanism and a blood collection mechanism. The multi-channel pipe fitting is internally provided with a connected input channel and a first channel. , the second channel and the third channel, the first channel, the second channel and the third channel are respectively connected with the extraction mechanism, the analysis mechanism and the blood collection mechanism, and the input channel is used to connect with the tee of the external arterial indwelling needle. The arterial blood collection device of the present invention is connected to the external arterial indwelling needle through the input channel on the multi-channel pipe fitting, so that the arterial blood in the arterial indwelling needle is guided to the analysis mechanism or blood collection mechanism; an analysis mechanism is provided, and through the analysis The mechanism extracts arterial blood from the arterial indwelling needle to facilitate arterial blood gas analysis; the blood collection mechanism is used to introduce the arterial blood in the arterial indwelling needle into blood collection tubes and other vessels that can preserve blood.

Description

An arterial blood collection device

Technical field

The utility model relates to the technical field of medical devices, in particular to a multifunctional blood collection device.

Background technique

Arterial blood test is one of the more common clinical tests at present. It is mainly used for blood gas analysis and detection of the patient's arterial blood circulation. It is more common to detect electrolytes, lactic acid values, pH values, carbon dioxide, blood pressure values, blood Specific values such as oxygen partial pressure in the

Among them, in order to ensure the stability of the test results, medical staff are often required to isolate the collected blood to prevent external air from mixing into the blood and causing errors in the test results. Existing medical staff often collect arterial blood through indwelling arterial needles. The isolation effect is not ideal and brings inconvenience to medical staff who draw blood.

Utility model content

The utility model discloses an arterial blood collection device, which is used to expand the arterial blood collection scheme.

This utility model provides the following solutions:

An arterial blood collection device, including: a multi-channel pipe fitting, a channel valve, an extraction mechanism, an analysis mechanism and a blood collection mechanism. The multi-channel pipe fitting is internally provided with a connected input channel, a first channel, a second channel and a third channel. The first channel, the second channel and the third channel are respectively connected with the extraction mechanism, the analysis mechanism and the blood collection mechanism, and the input channel is used to connect with an external arterial indwelling needle. Connected, the channel valve is provided in the multi-channel pipe, and the channel valve is used to change the communication state between the input channel and the first channel, the second channel, and the third channel.

Preferably, the extraction mechanism is a first syringe, and the first syringe is used to extract the front-stage filling fluid in the multi-channel tube.

Preferably, the analysis mechanism is a second syringe, the second syringe is prefilled with an anticoagulant, and the second syringe is detachably connected to the second channel.

Preferably, the blood collection mechanism is a blood collection needle, the outside of the blood collection needle is wrapped with a rubber protective sheath, and the blood collection needle is detachably connected to the third channel.

Preferably, the channel valve includes a three-way valve core and a valve switch. The three-way valve core is located in a multi-channel pipe fitting. The valve switch is located on the multi-channel pipe fitting and is connected to the three-way valve core.

Preferably, the end of the input channel is provided with a connecting joint, and the outside of the connecting joint is provided with a threaded portion. The input channel is connected to the tee of the external arterial indwelling needle through the connecting joint.

Preferably, it also includes a blocking member, which is detachably installed on the connecting joint.

Adopting the technical solution of the present utility model has the following beneficial effects:

Through the input channel on the multi-channel pipe fitting, the arterial blood collection device of the present invention is connected to the external arterial indwelling needle through a three-way connection, so that the arterial blood in the arterial indwelling needle is guided to the analysis mechanism or blood collection mechanism; an extraction mechanism is provided, and through the extraction The institution can extract the front-segment filling fluid in the arterial indwelling needle at the beginning of blood collection to avoid impurities such as the front-segment filling fluid and air from affecting the results of arterial blood gas analysis; it is equipped with an analysis mechanism through which the arterial blood in the arterial indwelling needle is analyzed. extraction to facilitate arterial blood gas analysis; the blood collection mechanism is used to introduce the arterial blood in the arterial indwelling needle into blood collection tubes and other vessels that can preserve blood.

The utility model is also provided with a channel valve, which changes the communication state between the input channel and the first channel, the second channel, and the third channel to control the communication between the external arterial indwelling needle and the extraction mechanism, analysis mechanism, and blood collection mechanism. status, avoiding the interaction between the blood collection of the analysis institution and the blood collection institution, making the blood collection operation controllable.

3) Both the analysis mechanism and the blood collection mechanism are detachably connected to the multi-channel pipe fittings, making it easy to remove the analysis mechanism after blood collection, install the analysis mechanism for blood to be collected, and replace the blood collection mechanism.

Description of the drawings

Figure 1 is a schematic structural diagram of an arterial blood collection device of the present invention;

Figure 2 is a schematic diagram of the internal structure of an arterial blood collection device of the present invention;

Figure 3 is a schematic diagram of the connection between an arterial blood collection device and an arterial indwelling needle of the present invention, and an external arterial indwelling needle and an external blood collection tube.

In the figure, multi-channel pipe 100, input channel 140, first channel 110, second channel 120, third channel 130, first syringe 200, second syringe 300, anticoagulant 301, blood collection needle 410, rubber protection Set 420, three-way valve core 510, valve switch 520, connecting joint 141, threaded part 142, external arterial indwelling needle 600, three-way 601, puncture needle 602, medicinal solution bag 603, blood collection tube 700.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "both ends", The orientation or positional relationship indicated by "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the device or component referred to. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise explicitly stipulated and limited, the terms "installed", "disposed with", "connected", etc. should be understood in a broad sense. For example, "connected" can be fixed The connection can also be a detachable connection or an integrated connection; it can be a mechanical connection or an electrical connection; the mechanical connection can be welding, riveting, threaded connection or flange connection, etc.; it can be directly connected or through an intermediate connection The medium is indirectly connected, which can be the internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The utility model will be described in detail below in conjunction with Figures 1-2.

An arterial blood collection device includes: a multi-channel pipe fitting 100, a channel valve, an extraction mechanism, an analysis mechanism and a blood collection mechanism. The multi-channel pipe fitting 100 is internally provided with a connected input channel 140, a first channel 110, a second channel 120 and a third channel. Three channels 130, the first channel 110, the second channel 120 and the third channel 130 are respectively connected with the extraction mechanism, the analysis mechanism and the blood collection mechanism. The input channel 140 is used to connect with the tee 601 of the external arterial indwelling needle 600. The channel valve Disposed in the multi-channel pipe fitting 100, the channel valve is used to change the communication state between the input channel 140 and the first channel 110, the second channel 120, and the third channel 130.

In this embodiment, the input channel 140 is connected to the external arterial indwelling needle 600. When arterial blood collection starts, the front filling fluid in the external arterial indwelling needle 600 can be extracted through the extraction mechanism to avoid impurities such as the front filling fluid and air from affecting the arterial blood gases. The result of the analysis; by changing the state of the channel valve, the input channel 140 is selectively connected to the blood collection mechanism or the analysis mechanism, so that the arterial blood can be introduced into the blood collection mechanism or the analysis mechanism to facilitate the completion of the corresponding blood test.

Preferably, the extraction mechanism is a first syringe 200, and the first syringe 200 is used to extract the front-stage filling fluid in the multi-channel tube 100. Therefore, the first syringe 200 is used as the extraction mechanism, and the liquid extraction function of the syringe can be used to extract the front-end filling fluid in the external artery indwelling needle 600 and the multi-channel tube 100 when blood collection starts.

Preferably, the analysis mechanism is a second syringe 300, the second syringe 300 is prefilled with the anticoagulant 301, and the second syringe 300 is detachably connected to the second channel 120. Therefore, the second syringe 300 is used as the extraction mechanism, and the anticoagulant 301 is prefilled in the second syringe 300, so that the arterial blood extracted into the second syringe 300 is mixed with the anticoagulant 301, and the anticoagulant is The blood agent 301 is preferably heparin; the second syringe 300 is detachably connected to the second channel 120. After completing the extraction of arterial blood, the second syringe 300 can be separated from the second channel 120 of the multi-channel tube 100 to facilitate removal of the second syringe 300. The second syringe 300 performs a blood gas analysis test; through the detachability of the second syringe 300 and the second channel 120, after completing an arterial blood gas analysis test, the second syringe 300 can be connected to the multi-channel pipe fitting 100 again to perform the next arterial blood gas analysis test. Blood gas analysis test, in which arterial blood is collected multiple times.

Preferably, the blood collection mechanism is a blood collection needle 410. The outside of the blood collection needle 410 is wrapped with a rubber protective sheath 420. The blood collection needle 410 is detachably connected to the third channel 130. The rubber protective cover 420 is a soft protective cover 420, which is wrapped around the outside of the blood collection needle 410 to prevent the sharp blood collection needle 410 from being directly exposed. When collecting blood, the blood collection needle 410 is pierced to the cover of the blood collection tube 700. At this time, blood is collected. The needle 410 sequentially pierces the rubber protective sheath 420 and the cover of the blood collection tube 700, and extends into the inside of the blood collection tube 700, so that the needle head of the blood collection needle 410 is exposed in the blood collection tube 700 to form a passage to realize the third channel 130 and the blood collection tube 700. The connection is used to introduce the arterial blood in the arterial indwelling needle into the blood collection tube 700, so that the blood collection tube 700 can be used to collect and perform routine blood testing; the blood collection needle 410 and the third channel 130 are detachable, which facilitates the handling of sharp instruments and Replace blood collection needle 410.

Preferably, the channel valve includes a three-way valve core 510 and a valve switch 520. The three-way valve core 510 is provided in the multi-channel pipe fitting 100, and the valve switch 520 is provided on the multi-channel pipe fitting 100 and connected to the three-way valve core 510. The valve switch 520 is connected to the three-way valve core 510. By rotating the valve switch 520, the position of the three-way valve core 510 can be changed, thereby changing the connection state inside the multi-channel pipe fitting 100. In this embodiment, through the channel valve The following connection states are achieved: the input channel 140 is connected to the first channel 110 and the second channel 120, and the third channel 130 is closed at the same time; the input channel 140 is connected to the first channel 110 and the third channel 130, and the second channel 130 is connected at the same time. The channel 120 is closed; the first channel 110, the second channel 120 and the third channel 130 are connected to each other, and the input channel 140 is closed. In this way, the connection status between the external arterial indwelling needle 600 and the extraction mechanism, analysis mechanism and blood collection mechanism is controlled, avoiding mutual influence of blood collection by the analysis mechanism and blood collection mechanism, making the blood collection operation controllable.

Preferably, the end of the input channel 140 is provided with a connecting joint 141, and the outside of the connecting joint 141 is provided with a threaded portion 142. The input channel 140 is connected to the tee 601 of the external arterial indwelling needle 600 through the connecting joint 141. Therefore, the connection joint 141 is provided at the end of the input channel 140 to facilitate the connection between the multi-channel tube 100 and the external arterial indwelling needle 600 through the cooperation of the threaded portion 142 and the catheter.

Preferably, it also includes a blocking member, which is detachably provided on the connecting joint 141. The blocking member is provided on the connector to block the input channel 140 of the multi-channel tube when blood collection is not in progress to prevent impurities from entering the multi-channel tube 100 .

Referring to Figure 3, the blood collection process in this embodiment is:

The subject's artery is punctured through the puncture needle 602 of the arterial indwelling needle, and the input channel 140 of the arterial blood collection device is connected to one of the three-way channels 601 of the arterial indwelling needle through a catheter or hose. The remaining two channels of 601 are respectively connected to the needle of the arterial indwelling needle and the physiological saline solution bag 603 of the arterial indwelling needle.

Step of extracting the anterior filling fluid: changing the communication state of the channel valve so that the input channel 140 communicates with the first channel 110, and extracting the anterior filling fluid in the external arterial indwelling needle 600 into the first syringe 200 through extraction of the first syringe 200;

Steps of blood collection for arterial blood gas analysis: change the connection state of the channel valve so that the input channel 140 communicates with the second channel 120. At this time, the arterial blood to be detected is extracted into the second syringe 300 through the extraction of the second syringe 300. After the extraction is completed The second syringe 300 is separated from the multi-channel tube 100 to facilitate the arterial blood gas analysis test.

Blood collection steps for routine blood tests: Pierce the blood collection needle 410 through the cap of the blood collection tube 700 used for routine blood tests, so that the blood collection needle 410 extends into the inside of the blood collection tube 700. At this time, the connection state of the channel valve is changed, so that the input channel 140 communicates with the third channel 130, waiting for the arterial blood to flow into the blood collection tube 700 through the blood collection needle 410. After the blood collection is completed, the blood collection tube 700 is separated from the blood collection needle 410, and the blood collection tube 700 can be taken out for routine blood tests.

The above are only preferred embodiments of the present utility model. The present utility model is not limited to the above-mentioned embodiments. As long as the technical effects of the present utility model are achieved by the same means, they all fall within the protection scope of the present utility model. Various modifications and changes may be made to the technical solutions and/or implementations within the protection scope of the present invention.

Claims (7)

1. An arterial blood collection device, characterized in that it includes: a multi-channel pipe fitting, a channel valve, an extraction mechanism, an analysis mechanism and a blood collection mechanism. The multi-channel pipe fitting is internally provided with a connected input channel, a first channel, a second channel channel and a third channel, the first channel, the second channel and the third channel are respectively connected with the extraction mechanism, the analysis mechanism and the blood collection mechanism, and the input channel is used to communicate with the external The three-way connection of the arterial indwelling needle is connected, and the channel valve is provided in the multi-channel pipe fitting. The channel valve is used to change the input channel and the first channel, the second channel, and the third channel. the connectivity status between them. 2. An arterial blood collection device according to claim 1, characterized in that the extraction mechanism is a first syringe, and the first syringe is used to extract the front-section filling fluid in the multi-channel tube. 3. An arterial blood collection device according to claim 1, characterized in that the analysis mechanism is a second syringe, the second syringe is prefilled with an anticoagulant, and the second syringe is connected to the second syringe. The second channel is detachably connected. 4. An arterial blood collection device according to claim 1, characterized in that the blood collection mechanism is a blood collection needle, and the outside of the blood collection needle is wrapped with a rubber protective sheath, and the blood collection needle is connected to the third blood collection needle. Three channels can be detachably connected. 5. An arterial blood collection device according to claim 1, characterized in that the channel valve includes a three-way valve core and a valve switch, the three-way valve core is located in a multi-channel pipe fitting, and the valve switch It is located on the multi-channel pipe fitting and connected to the three-way valve core. 6. An arterial blood collection device according to claim 1, characterized in that the end of the input channel is provided with a connecting joint, the outside of the connecting joint is provided with a threaded portion, and the input channel passes through the connection The connector is connected to the tee of the external arterial indwelling needle. 7. An arterial blood collection device according to claim 6, further comprising a blocking member, and the blocking member is detachably installed on the connecting joint.