A safe multifunctional blood sampling device

Abstract

The utility model discloses a safe multifunctional blood collector, which is designed in the field of medical devices. It comprises a three-way valve, characterized in that: a puncture assembly for puncturing and blood sampling is provided at one lateral end of the three-way valve, and an interface for connecting an arterial blood gas needle is provided at the other end, and a blood sampling needle is fixedly provided at the longitudinal end of the three-way valve, and a protective cover for isolating the blood sampling needle from the outside is also fixedly provided. When collecting blood, the utility model first adjusts the flow direction of the three-way valve to the input end-lateral output end, and the blood collected by the puncture assembly at this time flows into the arterial blood gas needle as an arterial blood gas specimen, and then adjusts the flow direction of the three-way valve to the input end-longitudinal output end, and the blood flows into the collection tube as an ordinary test tube specimen, so that two specimens can be collected at one puncture site, which not only facilitates the collection, but also reduces the risk of infection and alleviates the patient's discomfort.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a safe multifunctional blood sampling device. Background Art

[0002] Blood testing is one of the most commonly used medical diagnostic methods, providing doctors with a lot of important information about the patient's health status. A blood collection device is a medical device specifically used to collect blood from patients.

[0003] Traditional blood collection methods are divided into arterial blood gas sample collection and ordinary test tube sample collection, and different blood collection devices are required for collection. However, for patients who do not have an indwelling arterial puncture catheter, if arterial blood gas samples and ordinary test tube samples need to be collected at the same time due to their condition, the patient needs to be punctured multiple times. This is not only inconvenient to collect samples, but also increases the risk of infection in patients during the collection process and is likely to increase the patient's discomfort. Utility Model Content

[0004] The purpose of the utility model is to provide a safe multifunctional blood sampling device in order to solve the above problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The utility model provides a safe multifunctional blood sampling device, comprising a three-way valve, characterized in that a puncture assembly for puncturing and blood sampling is provided at one transverse end of the three-way valve, an interface for connecting an arterial blood gas needle is provided at the other end, and a blood sampling needle is fixedly provided at the longitudinal end of the three-way valve, and a protective cover for isolating the blood sampling needle from the outside is also fixedly provided.

[0007] In one embodiment, the puncture assembly includes a blood vessel and a puncture needle, one end of the blood vessel is fixedly connected to the puncture needle, and the other end is detachably connected to the three-way valve.

[0008] In one embodiment, the three-way valve is equipped with a first protective cap for closing the interface, and the protective cover is flipably provided with a second protective cap, which is embedded in the opening of the protective cover.

[0009] In one embodiment, two fixing wings for fixing the position of the puncture needle are fixed on the blood vessel.

[0010] In one embodiment, the puncture needle is provided with a matching needle tip protection cap.

[0011] In one embodiment, the three-way valve is made of PVC material.

[0012] The advantages or beneficial effects of the above technical solution include at least:

[0013] First, in the utility model, during collection, the flow direction of the three-way valve is first adjusted to the input end-lateral output end, at which time the blood collected by the puncture assembly flows into the arterial blood gas needle as an arterial blood gas specimen, and then the flow direction of the three-way valve is adjusted to the input end-longitudinal output end, at which time the blood flows into the collection tube as an ordinary test tube specimen, so that two specimens can be collected at one puncture site, which not only facilitates collection, but also reduces the risk of infection and alleviates the patient's discomfort.

[0014] Secondly, in the utility model, the blood tube and the three-way valve are detachably connected. When the puncture needle is accidentally contaminated during blood collection or blood coagulation occurs in the blood tube, the blood tube can be directly separated from the three-way valve, and the scalp needle can be connected to the three-way valve to continue puncturing and blood collection, thereby reducing the cost of replacing parts and avoiding waste.

[0015] Thirdly, in the present invention, when collecting common test tube specimens, it is only necessary to put the blood collection tube on the blood collection needle, so that the human body can be prevented from directly contacting the blood collection needle, thereby preventing medical staff from being injured by needles.

[0016] Fourthly, in the utility model, when the blood collector is stored at ordinary times, the interface can be closed by the first protective cap, and the opening of the protective cover can be closed by the second protective cap to prevent dust from entering the three-way valve and causing contamination to the blood during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings show exemplary implementations of the present invention and, together with the description thereof, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are included in and constitute a part of this specification.

[0018] Figure 1 This is a schematic diagram of the external structure of the blood collection device when it is not in use.

[0019] Figure 2 This is a schematic diagram of the external structure of the blood sampling device in the present invention when in normal use.

[0020] Figure 3 This is a schematic diagram of the external structure of the blood collector in the present invention when it is used in the event of contamination or blood coagulation.

[0021] Figure numerals: 1. three-way valve; 2. puncture assembly; 21. blood vessel; 211. fixed wing; 22. puncture needle; 222. needle tip protection cap; 3. interface; 4. blood collection needle; 5. protective cover; 6. first protective cap; 7. second protective cap; 8. arterial blood gas needle; 9. blood collection tube; 10. scalp needle. DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be understood that the term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0027] Reference Figure 1 A safe multifunctional blood collector includes a three-way valve 1, which is made of PVC material. The direction shown in the figure is the first direction. The three-way valve 1 has two lateral ends and one longitudinal end, one of the lateral ends is the input end, and the other lateral end and the longitudinal end are the output end. The flow direction of the three-way valve 1 can be adjusted to be set as input end-lateral output end and input end-longitudinal output end.

[0028] Reference Figure 2Specifically, the input end of the three-way valve 1 is provided with a puncture component 2 for puncturing and blood sampling, the other lateral output end is provided with an interface 3 for connecting an arterial blood gas needle 8, and the longitudinal output end is fixedly provided with a blood sampling needle 4, wherein the arterial blood gas needle 8 is used to store arterial blood gas specimens, and when in use, the arterial blood gas needle 8 is connected to the interface 3 by a thread. When collecting arterial blood gas specimens, the three-way valve 1 is adjusted to a flow direction from the input end to the lateral output end. At this time, the blood entering the three-way valve 1 through the puncture component 2 can flow into the arterial blood gas needle 8. When it is necessary to collect ordinary test tube specimens, the blood sampling tube 9 is sleeved on the outside of the blood sampling needle 4, and the flow direction of the three-way valve 1 is adjusted to the input end-longitudinal output end, so that the blood flows into the blood sampling tube 9 through the blood sampling needle 4 and is stored as an ordinary test tube specimen.

[0029] In a specific embodiment, when it is necessary to collect arterial blood gas samples and ordinary test tube samples from the patient in sequence, the arterial blood gas needle 8 is first connected to the interface 3, and the blood collection tube 9 is set on the outside of the blood collection needle 4. When collecting, the flow direction of the three-way valve 1 is first adjusted to the input end to the lateral output end, and then the patient is punctured and blood is collected using the puncture component 2. At this time, the blood can enter the three-way valve 1 from the input end and then flow into the arterial blood collection needle 4 to be stored as an arterial blood gas sample. After the arterial blood gas sample is collected, the flow direction of the three-way valve 1 is adjusted to the input end-longitudinal output end, so that the blood flows from the input end to the longitudinal end of the three-way valve 1, and then flows into the blood collection tube 9 through the blood collection needle 4 to be stored as an ordinary test tube sample. In this way, two different samples can be collected at the same puncture site, which not only facilitates the collection, but also reduces the risk of infection and relieves the patient's discomfort.

[0030] Reference Figure 2 Specifically, the three-way valve 1 is also provided with a protective cover 5 for isolating the blood collection needle 4 from the outside. One end of the protective cover 5 is connected to the three-way valve 1, and the other end is provided with an opening for the blood collection tube 9 to extend from the outside. Therefore, when the blood collection tube 9 is sleeved on the outside of the blood collection needle 4, only one hand is needed to support the bottom of the blood collection tube 9, and the other hand is needed to hold the protective cover 5, and then the tube end of the blood collection tube 9 is inserted into the opening of the protective cover 5 and sleeved on the outside of the blood collection needle 4, so that the medical staff does not need to directly contact the blood collection needle 4, reducing the probability of puncture injuries during use. At the same time, during the storage of the device, the protective cover 5 can also isolate the blood collection needle 4 from the outside, preventing the medical staff from being accidentally stabbed by the blood collection needle 4 when taking and placing the device.

[0031] Reference Figure 2 and Figure 3The puncture assembly 2 includes a blood vessel 21 and a puncture needle 22. One end of the blood vessel 21 is fixedly connected to the puncture needle 22, and the other end is detachably connected to the input end of the three-way valve 1. After the puncture needle 22 punctures the human artery, blood flows into the three-way valve 1 through the blood vessel 21. When the puncture needle 22 is accidentally contaminated during the collection process or blood coagulation occurs in the blood vessel 21, since the puncture has been completed, replacing the entire puncture assembly 2 is likely to cause discomfort to the patient and increase the chance of infection. At this time, the blood vessel 21 can be directly separated from the three-way valve 1, and a clinically used scalp needle 10 is connected to the input end of the three-way valve 1, and then the scalp needle 10 is inserted into the puncture site of the patient, so that blood enters the three-way valve 1 through the puncture needle 22 to continue to complete the specimen collection. Under this setting, when contamination or coagulation occurs, there is no need to replace a complete set of puncture components 2, which reduces the cost of replacing components and avoids waste.

[0032] Reference Figure 2 Since the artery is under the pressure of heart beat and the blood vessel wall is thick and elastic, it is difficult to puncture the artery, and after puncture, pressure will be generated to eject the puncture needle 22. Therefore, two fixing wings 211 for fixing the position of the puncture needle 22 are fixed on the blood vessel 21. The fixing wings 211 are provided with adhesive. Under such a setting, after puncture, the fixing wings 211 are used to wrap around the puncture site of the patient to fix the puncture needle 22, so that the medical staff does not need to manually fix the puncture needle 22 during the specimen collection process, thereby reducing the workload of medical staff and facilitating the operation of collecting blood specimens.

[0033] Reference Figure 1 In a specific implementation, in order to prevent medical staff from being accidentally injured by the puncture needle 22, the puncture needle 22 is matched with a needle tip protection cap 222. Under normal conditions, the needle tip protection cap 222 is put on the outside of the puncture needle 22, and the needle tip protection cap 222 is removed when puncturing.

[0034] Reference Figure 1 and Figure 2 The three-way valve 1 is also equipped with a first protective cap 6 for closing the interface 3, and the protective cover 5 is flipably provided with a second protective cap 7, which is embedded in the opening of the protective cover 5. When the blood collection device is not in use, the first protective cap 6 is used to close the interface 3, and the second protective cap 7 is used to close the opening of the protective cover 5 to prevent external dust from entering the three-way valve 1 through the interface 3 or the opening of the protective cover 5 during storage and causing contamination to the blood during the collection process.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0036] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A safe multifunctional blood sampling device, comprising a three-way valve (1), characterized in that: The three-way valve (1) is provided with a puncture assembly (2) for puncturing and sampling blood at one transverse end, and an interface (3) for connecting an arterial blood gas needle (8) at the other end, and a blood sampling needle (4) is fixedly provided at the longitudinal end of the three-way valve (1), and a protective cover (5) for isolating the blood sampling needle (4) from the outside world is also fixedly provided; The puncture assembly (2) comprises a blood vessel (21) and a puncture needle (22); one end of the blood vessel (21) is fixedly connected to the puncture needle (22), and the other end of the blood vessel (21) is detachably connected to the three-way valve (1); The three-way valve (1) is provided with a first protective cap (6) for closing the interface (3), and the protective cover (5) is provided with a second protective cap (7) in a flippable manner, wherein the second protective cap (7) is embedded in the opening of the protective cover (5); The blood vessel (21) is fixedly provided with two fixing wings (211) for fixing the position of the puncture needle (22).

2. The safe multifunctional blood collector according to claim 1, characterized in that: The puncture needle (22) is provided with a matching needle tip protection cap (222).

3. The safe multifunctional blood collector according to claim 1, characterized in that: The three-way valve (1) is made of PVC material.

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