Disposable blood sampling device and peripheral blood sampling equipment

Abstract

The utility model provides a disposable blood sampling device and peripheral blood sampling equipment, which relate to the technical field of medical devices, and include a blood sampling body, a quantitative blood sampling tube, an anticoagulant layer and a blocking layer; the internal volume of the quantitative blood sampling tube is quantified to ensure quantitative sampling of the sampled blood sample amount, so as to be able to test the quantitative product kit; the anticoagulant layer is used to limit the coagulation of the blood sample in the quantitative blood sampling tube, and the blocking layer is used by the blood sampling body to limit the internal pressure in the quantitative blood sampling tube; the anticoagulant can be used to ensure that the blood entering the quantitative blood sampling tube can be stored for a period of time, and at the same time the blocking layer can ensure the internal and external pressures of the quantitative blood sampling tube, and ensure the stability of the sampled blood in the quantitative blood sampling tube, thereby alleviating the technical problems existing in the prior art that the peripheral blood sampling operation is long and relatively scattered, the operation efficiency is low, and the patient experience is poor.

Description

Technical Field

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

[0002] In the process of clinical medical diagnosis and treatment, blood samples are often taken from people for testing. The most common way of blood collection is to draw blood from the vein with a syringe, or to draw blood from the vein with a blood collection needle connected to a blood collection tube. The collected blood is then transferred to a separate test tube for centrifugal precipitation to separate serum or plasma for qualitative or quantitative testing and analysis. If you encounter people who are not suitable for venous blood collection, such as patients with blood diseases, infants, children, the elderly, etc., you need to draw blood from the extremities.

[0003] In the prior art, for disposable peripheral blood sampling devices, the blood sampling needle needs to puncture the puncture site and then immediately collect the sample and use it, and it is mostly used for qualitative products; however, for hospitals with a large flow of people and a small number of medical staff, each medical staff member needs to complete the sampling and use operations for each patient whose peripheral blood is collected, resulting in a long and scattered operation time and low operation efficiency; in addition, peripheral blood is generally collected by scraping the outflowing blood with a tubular sampling tube, and then the blood sample collected by the sampling tube is transferred and used through a suction dropper, so there will be a technical problem of sampling a large amount of blood, resulting in a poor patient experience. Utility Model Content

[0004] The utility model aims to provide a disposable blood sampling device and a peripheral blood sampling equipment to alleviate the technical problems existing in the prior art of long and scattered peripheral blood sampling operation time, low operation efficiency and poor patient experience.

[0005] The utility model provides a disposable blood sampling device, comprising: a blood sampling body, a quantitative blood sampling tube, an anticoagulant layer and a blocking layer;

[0006] The quantitative blood collection tube is located at the end of the blood collection body, and the quantitative blood collection tube is connected to the inside of the blood collection body. The blood collection body is provided with a vent hole, and the blood collection body maintains the internal and external air pressure of the quantitative blood collection tube through the vent hole;

[0007] The anticoagulant layer is arranged inside the quantitative blood collection tube, and is used to limit the coagulation of the blood sample in the quantitative blood collection tube. The blocking layer can be sealed and connected to the vent hole, and the blocking layer is used by the blood collection body to limit the internal pressure in the quantitative blood collection tube.

[0008] In a preferred embodiment of the utility model, the blood sampling body includes a housing and a push rod;

[0009] The push rod is slidably and sealingly connected to the shell, a pushing space is formed between the shell and the push rod, the quantitative blood collection tube passes through one end of the shell away from the push rod, and the quantitative blood collection tube is connected to the pushing space.

[0010] In a preferred embodiment of the present invention, the anticoagulant layer is formed by attaching the anticoagulant to the quantitative blood collection tube through a spray drying method.

[0011] In a preferred embodiment of the utility model, an anti-push buckle is also included;

[0012] One end of the push rod extending out of the housing is provided with a push protrusion, the anti-push buckle is clamped on the outside of the push rod, and two ends of the anti-push buckle are respectively abutted against the end of the housing and the push protrusion for limiting position.

[0013] In a preferred embodiment of the present invention, the shell has a tip portion at one end away from the push rod, the diameter of the tip portion is smaller than the diameter of the push rod, and the quantitative blood collection tube extends into the pushing space through the tip portion.

[0014] In a preferred embodiment of the utility model, it also includes a pipe cap;

[0015] The shell also includes an extension portion, which is integrally formed with the tip portion. The tube cap is sleeved on the outside of the shell along the tip portion, and there is a gap between the bottom wall of the tube cap and the quantitative blood collection tube. The tube cap is clamped with one end of the extension portion close to the tip portion.

[0016] In a preferred embodiment of the present invention, the housing comprises a transparent housing.

[0017] In a preferred embodiment of the present invention, scale lines are provided along the side wall of the quantitative blood collection tube, and the volume range of the quantitative blood collection tube is less than or equal to 75uL.

[0018] In a preferred embodiment of the present invention, a side of the blocking layer facing away from the vent hole has a mark.

[0019] The utility model provides a peripheral blood sampling device, which comprises the disposable blood sampling device.

[0020] The utility model provides a disposable blood sampling device, comprising: a blood sampling body, a quantitative blood sampling tube, an anticoagulant layer and a blocking layer; the quantitative blood sampling tube is located at the end of the blood sampling body, and the quantitative blood sampling tube is connected with the inside of the blood sampling body, and a vent is provided on the blood sampling body, and the blood sampling body maintains the internal and external air pressure of the quantitative blood sampling tube through the vent; the internal volume of the quantitative blood sampling tube is quantitatively measured to ensure quantitative sampling of the sampled blood sample amount, so as to be able to test the quantitative product kit; the anticoagulant layer is arranged inside the quantitative blood sampling tube, the anticoagulant layer is used to limit the coagulation of the blood sample in the quantitative blood sampling tube, the blocking layer can be sealed and connected with the vent, and the blocking layer is used for the blood sampling body to limit the internal pressure in the quantitative blood sampling tube; the anticoagulant can be used to ensure that the blood sample entering the quantitative blood sampling tube can be stored for a period of time, and the blocking layer can ensure the internal and external pressure of the quantitative blood sampling tube, and ensure the stability of the sampled blood in the quantitative blood sampling tube, so as to alleviate the technical problems existing in the prior art that the peripheral blood sampling operation time is long and relatively scattered, the operation efficiency is low, and the amount of sampled blood is large, and the patient experience is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of a disposable blood sampling device provided in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the explosion structure of the disposable blood sampling device provided in an embodiment of the utility model;

[0024] Figure 3 A schematic cross-sectional view of a disposable blood sampling device provided in an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the structure of the sealing layer of the disposable blood sampling device provided in an embodiment of the utility model.

[0026] Icons: 100-blood collection body; 110-shell; 111-vent; 112-tip; 120-push rod; 121-push protrusion; 200-quantitative blood collection tube; 210-scale line; 300-sealing layer; 310-mark; 400-anti-push buckle; 500-tube cap. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-Figure 4 As shown, a disposable blood sampling device provided in this embodiment includes: a blood sampling body 100, a quantitative blood sampling tube 200, an anticoagulant layer and a blocking layer 300; the quantitative blood sampling tube 200 is located at the end of the blood sampling body 100, and the quantitative blood sampling tube 200 is connected to the inside of the blood sampling body 100, and a vent 111 is opened on the blood sampling body 100, and the blood sampling body 100 maintains the internal and external air pressure of the quantitative blood sampling tube 200 through the vent 111; the anticoagulant layer is arranged inside the quantitative blood sampling tube 200, and the anticoagulant layer is used to limit the coagulation of the blood sample in the quantitative blood sampling tube 200, and the blocking layer 300 can be sealed and connected with the vent 111, and the blocking layer 300 is used for the blood sampling body 100 to limit the internal pressure in the quantitative blood sampling tube 200.

[0029] It should be noted that the disposable blood sampling device provided in this embodiment can be used in a quantitative product kit, which can quantitatively collect peripheral blood and store it for a period of time; specifically, the blood sampling body 100 can provide a basic structure for the quantitative blood sampling tube 200, and the blood sampling body 100 uses the vent 111 opened on the side wall to ensure the air pressure balance between the quantitative blood sampling tube 200 and the external environment; when the medical staff holds the blood sampling body 100 and brings the quantitative blood sampling tube 200 into contact with the wound site of the patient, the blood sample is sucked into the quantitative blood sampling tube 200 due to the capillary phenomenon and the difference in cohesion and adhesion. After the blood sample is collected, the sealing layer is used to seal the blood sample. 300 seals the vent hole 111. At this time, the internal pressure of the quantitative blood collection tube 200 is in a stable state, which ensures that the blood sample in the quantitative blood collection tube 200 will not flow out. Furthermore, the blood sample in the quantitative blood collection tube 200 is isolated from the inner wall of the quantitative blood collection tube 200 by the anticoagulant layer. The anticoagulant layer can be spray-dried to make the inner wall of the quantitative blood collection tube 200 adhere to the anticoagulant. The anticoagulant is used to ensure that the collected blood sample will not coagulate, so that it can be stored for a period of time, ensuring that when there are many patients, centralized collection, centralized testing, centralized operation time, and improved operation efficiency.

[0030] In a preferred embodiment of the present invention, the anticoagulant layer is formed by adhering the anticoagulant to the quantitative blood collection tube 200 through a spray drying method, and thus will not affect the components of the blood sample, that is, will not affect the test results.

[0031] The disposable blood sampling device provided in this embodiment includes: a blood sampling body 100, a quantitative blood sampling tube 200, an anticoagulant layer and a blocking layer 300; the quantitative blood sampling tube 200 is located at the end of the blood sampling body 100, and the quantitative blood sampling tube 200 is connected to the inside of the blood sampling body 100, and a vent hole 111 is opened on the blood sampling body 100, and the blood sampling body 100 maintains the internal and external air pressure of the quantitative blood sampling tube 200 through the vent hole 111; the internal volume of the quantitative blood sampling tube 200 is quantitatively measured to ensure quantitative sampling of the sampled blood sample amount, so as to be able to test the quantitative product kit; the anticoagulant layer is arranged inside the quantitative blood sampling tube 200 The anticoagulant layer is used to limit the coagulation of the blood sample in the quantitative blood collection tube 200, and the blocking layer 300 can be sealed and connected with the vent hole 111. The blocking layer 300 is used for the blood collection body 100 to limit the internal pressure in the quantitative blood collection tube 200; the use of the anticoagulant can ensure that the blood entering the quantitative blood collection tube 200 can be stored for a period of time. At the same time, the blocking layer 300 can ensure the internal and external pressures of the quantitative blood collection tube 200, and ensure the stability of the sampled blood in the quantitative blood collection tube 200, which alleviates the technical problems of long and scattered peripheral blood collection operation time, low operation efficiency, large amount of sampled blood, and poor patient experience in the prior art.

[0032] On the basis of the above embodiments, further, in a preferred embodiment of the utility model, the blood collection body 100 includes a shell 110 and a push rod 120; the push rod 120 is slidingly and sealingly connected to the shell 110, and a pushing space is formed between the shell 110 and the push rod 120. The quantitative blood collection tube 200 passes through one end of the shell 110 away from the push rod 120, and the quantitative blood collection tube 200 is connected to the pushing space.

[0033] In this embodiment, the shell 110 serves as a basic structure, and the push rod 120 can extend into the shell 110 through one end of the shell 110, and the push rod 120 extends into the shell 110 and is slidably sealed with the inner wall of the shell 110, that is, the push rod 120 can ensure the sealing requirement of one end of the shell 110, and the quantitative blood collection tube 200 is connected with the other end of the shell 110, and the quantitative blood collection tube 200 is communicated with the internal pushing space of the shell 110. When the quantitative blood collection tube 200 is in the process of sampling and storage after the sampling is completed, the push rod 120 is in a stationary state relative to the shell 110. When the blood sample in the quantitative blood collection tube 200 needs to flow into the diluent, the push rod 120 is pushed in the direction close to the quantitative blood collection tube 200. By using the pushing action of the push rod 120, the blood sample in the quantitative blood collection tube 200 can all enter the collection bottle of the diluent, and then the sample mixing and loading operations can be performed according to the instructions in the corresponding project kit.

[0034] In a preferred embodiment of the present invention, the vent hole 111 is disposed on the housing 110 , and the vent hole 111 is used to connect the pushing space with the external environment, so that the quantitative blood collection tube 200 maintains the internal and external air pressure through the vent hole 111 during the sampling process.

[0035] In this embodiment, the vent hole 111 can ensure that the quantitative blood collection tube 200 is in balance with the air pressure of the external environment by pushing the space during the sampling process, so that when the quantitative blood collection tube 200 comes into contact with the wound site of the patient, the blood sample is sucked into the quantitative blood collection tube 200 due to the difference in cohesion and adhesion due to capillary phenomenon.

[0036] Optionally, the cross-section of the vent hole 111 can be formed in various shapes, such as rectangular, circular or elliptical. Preferably, the cross-section of the vent hole 111 is circular. The vent hole 111 can ensure the gas flow of the quantitative blood collection tube 200 during the sampling process.

[0037] In a preferred embodiment of the utility model, an anti-push buckle 400 is also included; one end of the push rod 120 extending out of the shell 110 has a push protrusion 121, the anti-push buckle 400 is clamped on the outside of the push rod 120, and the two ends of the anti-push buckle 400 are respectively abutted against the end of the shell 110 and the push protrusion 121 to limit the position.

[0038] In this embodiment, the push rod 120 can adopt the push rod 120 structure of a needle tube, that is, one end of the push rod 120 is slidably sealed with the inner wall of the shell 110 through a sealing plug structure, and the other end of the push rod 120 has a pushing protrusion 121. The diameter of the push rod 120 is smaller than the inner diameter of the pushing protrusion 121 and the shell 110. It is clamped on the outside of the push rod 120 by the anti-push buckle 400, and the two ends of the anti-push buckle 400 respectively push the protrusion 121 and the end of the shell 110 to abut. The anti-push buckle 400 can ensure that the push rod 120 and the shell 110 are in a relatively static state during the storage of the blood sample, thereby ensuring the temporary preservation of the blood sample in the quantitative blood collection tube 200.

[0039] In a preferred embodiment of the present invention, the shell 110 has a tip portion 112 at one end away from the push rod 120 . The diameter of the tip portion 112 is smaller than the diameter of the push rod 120 . The quantitative blood collection tube 200 extends into the pushing space through the tip portion 112 .

[0040] In this embodiment, the tip portion 112 can adopt a conical structure, that is, the diameter of the tip portion 112 can gradually decrease in the direction from the shell 110 to the quantitative blood collection tube 200, and the tip portion 112 can ensure the docking installation of the quantitative blood collection tube 200.

[0041] In a preferred embodiment of the utility model, a tube cap 500 is further included; the shell 110 also includes an extension portion, the extension portion and the tip portion 112 are integrally formed, the tube cap 500 is sleeved on the outside of the shell 110 along the tip portion 112, and there is a gap between the bottom wall of the tube cap 500 and the quantitative blood collection tube 200, and the tube cap 500 is clamped with one end of the extension portion close to the tip portion 112.

[0042] In this embodiment, the tube cap 500 can be buckled onto the outside of the shell 110 along the direction of the quantitative blood collection tube 200. The tube cap 500 can be used to form an end sealing protection for the quantitative blood collection tube 200. At the same time, the tube cap 500 can further form an end seal through the pushing space of the quantitative blood collection tube 200 on the shell 110, thereby ensuring the stability of the blood sample stored in the quantitative blood collection tube 200. In addition, when the tube cap 500 is buckled onto the outside of the shell 110, even if the blood sample in the quantitative blood collection tube 200 accidentally flows out, the tube cap 500 can temporarily collect the flowing blood sample to avoid contamination of the blood sample.

[0043] In a preferred embodiment of the present invention, the housing 110 includes a transparent housing 110 .

[0044] In a preferred embodiment of the present invention, a scale line 210 is provided along the side wall of the quantitative blood collection tube 200, and the volume range of the quantitative blood collection tube 200 is less than or equal to 75uL.

[0045] In the present embodiment, the quantitative blood collection tube 200 adopts a capillary blood collection tube, and the specification of the quantitative blood collection tube 200 is less than 75uL, so as to ensure the difference between the cohesion and adhesion of the blood sample and thus be sucked into the quantitative blood collection tube 200; in addition, since one end of the quantitative blood collection tube 200 extends into the shell 110, a scale line 210 is provided at the end of the quantitative blood collection tube 200 extending into the shell 110, and the shell 110 adopts a transparent shell 110, by observing the position of the blood sample in the quantitative blood collection tube 200, the blood collection operation can be stopped after reaching the scale line 210, thereby more accurately ensuring the quantitative collection of blood sample sampling.

[0046] In a preferred embodiment of the present invention, a side of the blocking layer 300 facing away from the vent hole 111 has a mark 310 .

[0047] In this embodiment, the blocking layer 300 can be made of a sticker, and an adhesive layer can be provided on one side surface of the blocking layer 300. The blocking layer 300 uses the adhesive layer to bond the side wall of the shell 110, and can also form a fitting seal for the vent 111; the other side surface of the blocking layer 300 has a mark 310, and different blood samples can be classified by the mark 310.

[0048] Optionally, the mark 310 can be digitally numbered, the mark 310 can also be a barcode or a QR code, and the mark 310 can also be a handwritten mark 310, etc. By distinguishing the mark 310, each blood sample can be accurately divided during centralized storage and centralized testing, ensuring that the information of each blood sample corresponds.

[0049] The present embodiment provides a peripheral blood sampling device, including a disposable blood sampling device. Since the technical effect of the peripheral blood sampling device provided by the present embodiment is the same as the technical effect of the disposable blood sampling device provided by the above embodiment, it will not be described in detail here.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A disposable blood sampling device, characterized in that: include: A blood collection body (100), a quantitative blood collection tube (200), an anticoagulant layer and a blocking layer (300); The quantitative blood collection tube (200) is located at the end of the blood collection body (100), and the quantitative blood collection tube (200) is connected to the inside of the blood collection body (100). The blood collection body (100) is provided with a vent hole (111), and the blood collection body (100) maintains the internal and external air pressure of the quantitative blood collection tube (200) through the vent hole (111); The anticoagulant layer is arranged inside the quantitative blood collection tube (200), and is used to limit the coagulation of the blood sample in the quantitative blood collection tube (200). The blocking layer (300) can be sealed and connected to the vent hole (111), and the blocking layer (300) is used by the blood collection body (100) to limit the internal pressure in the quantitative blood collection tube (200).

2. The disposable blood sampling device according to claim 1, characterized in that: The blood sampling body (100) comprises a housing (110) and a push rod (120); The push rod (120) is connected to the housing (110) in a sliding and sealing manner, a pushing space is formed between the housing (110) and the push rod (120), the quantitative blood collection tube (200) passes through one end of the housing (110) away from the push rod (120), and the quantitative blood collection tube (200) is connected to the pushing space.

3. The disposable blood sampling device according to claim 1, characterized in that: The anticoagulant layer is formed by attaching the anticoagulant to the quantitative blood collection tube (200) through a spray drying method.

4. The disposable blood sampling device according to claim 2, characterized in that: Also included is an anti-push buckle (400); One end of the push rod (120) extending out of the housing (110) is provided with a pushing protrusion (121), the anti-push buckle (400) is clamped on the outside of the push rod (120), and the two ends of the anti-push buckle (400) are respectively abutted against the end of the housing (110) and the pushing protrusion (121) to limit position.

5. The disposable blood sampling device according to claim 2, characterized in that: The shell (110) has a tip portion (112) at one end away from the push rod (120), and the diameter of the tip portion (112) is smaller than the diameter of the push rod (120). The quantitative blood collection tube (200) extends into the pushing space through the tip portion (112).

6. The disposable blood sampling device according to claim 5, characterized in that: Also includes a tube cap (500); The shell (110) further comprises an extension portion, wherein the extension portion and the tip portion (112) are integrally formed, and the tube cap (500) is sleeved on the outside of the shell (110) along the tip portion (112), and a gap is provided between the bottom wall of the tube cap (500) and the quantitative blood collection tube (200), and the tube cap (500) is clamped with an end of the extension portion close to the tip portion (112).

7. The disposable blood sampling device according to claim 2, characterized in that: The housing (110) comprises a transparent housing (110).

8. The disposable blood sampling device according to claim 7, characterized in that: Graduation lines (210) are arranged along the side wall of the quantitative blood collection tube (200), and the volume range of the quantitative blood collection tube (200) is less than or equal to 75uL.

9. The disposable blood sampling device according to any one of claims 1 to 8, characterized in that: The side of the blocking layer (300) facing away from the vent hole (111) has a mark (310).

10. A peripheral blood sampling device, characterized in that: It comprises a disposable blood drawing device as described in any one of claims 1 to 9.

Images