Blood container capable of being separated and extracted

Abstract

The utility model relates to the technical field of medical treatment, in particular to a blood container capable of being separated and extracted, which comprises a centrifugal outer cylinder, a separation cylinder and an extraction needle cylinder, the separation cylinder is movably mounted in the centrifugal outer cylinder in a limited manner, and a piston seat is arranged at the top end of the separation cylinder and is in extrusion contact with the inner wall of the centrifugal outer cylinder to form a closed cavity. And an extraction needle cylinder is installed in the separation cylinder in a limiting mode, and the top of the extraction needle cylinder is connected with a limiting nozzle arranged at the top of the separation cylinder in a clamped mode through a connecting base. According to the blood separating and extracting device, the separating cylinder is driven by the grab handle to move, blood is extracted into the centrifugal outer cylinder, the blood is centrifugally layered into three layers under the action of the centrifugal machine, each layer is sequentially extracted by the extracting needle cylinder, and the extracting needle cylinder is rotated to be separated from the separating cylinder, so that the blood is separated and extracted; the process operation is convenient, the container is integrally arranged, and the extraction precision is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical technology technical field especially relates to a blood container of separable extraction. BACKGROUND

[0002] Platelets can promote blood clotting and wound healing, and also have an important role in tissue regeneration, because they produce messenger substances, so-called growth factors, which absorb stem cells and reserve cells and induce differentiation, and by multiplication of new tissue are formed.

[0003] At present, in blood extraction, blood is separated into three layers after centrifugation: supernatant (upper layer), platelet-rich plasma layer (middle layer), and red blood cell layer (lower layer). The existing traditional blood container can only realize basic storage function, and still needs to use a needle cylinder to complete blood separation and extraction. The extraction operation process is complex, and the supernatant layer cannot be accurately extracted. Therefore, there is an urgent need for a blood container that can be separated and extracted. SUMMARY

[0004] The utility model provides a blood container that can be separated and extracted to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A blood container that can be separated and extracted, comprising a centrifugal outer cylinder, a separation cylinder, and an extraction needle cylinder, the separation cylinder is movably installed inside the centrifugal outer cylinder, the top end of the separation cylinder is provided with a piston seat and is in extrusion contact with the inner wall of the centrifugal outer cylinder to form a sealed cavity, and the extraction needle cylinder is movably installed inside the separation cylinder, the top of the extraction needle cylinder is connected to the limiting mouth provided at the top of the separation cylinder through a connecting seat;

[0007] The bottom end of the limiting mouth is provided with a pair of clamping plates, the bottom end of the clamping plate is provided with a limiting protrusion, the limiting protrusion is clamped and installed in the clamping groove in the connecting seat, and a plurality of sealing pads are arranged on the inner wall of the clamping plate, and the sealing pads are in extrusion contact with the top cylinder nozzle of the extraction needle cylinder.

[0008] In addition, the preferred structure is that the cylinder nozzle of the centrifugal outer cylinder is clamped and installed with a sealing cover.

[0009] In addition, the preferred structure is that one end of the separation cylinder is provided with a plurality of clamping protruding rings on the outside, a piston seat is sleeved and installed on the clamping protruding ring, and the piston seat is movably installed on the inner cylinder wall of the centrifugal outer cylinder.

[0010] In addition, the preferred structure is that the top of the separation cylinder is provided with a limiting mouth, and the extraction nozzle of the extraction needle cylinder is clamped and installed in the limiting mouth. In addition, the preferred structure is that the top of the separation cylinder is provided with a limiting mouth, and the extraction nozzle of the extraction needle cylinder is clamped and installed in the limiting mouth.

[0011] In addition, preferably, the top of the extraction needle barrel is provided with a connecting seat, the middle of the connecting seat is provided with the extraction nozzle thereof, and the inner wall of the connecting seat is provided with clamping grooves on both sides corresponding to the extraction nozzle.

[0012] In addition, preferably, when the extraction needle barrel is connected with the separation barrel, the extraction nozzle of the extraction needle barrel penetrates into the limiting nozzle and communicates with the inner cavity of the centrifugal outer barrel.

[0013] The blood container has the advantages that:

[0014] In the blood container, the separation barrel is moved by the handle to extract blood into the inner cavity of the centrifugal outer barrel, and the blood is centrifugally separated into three layers under the action of the centrifugal machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic diagram of an internal connection structure of a blood container according to the present application;

[0016] Figure 2 FIG. 2 is a schematic diagram of an external overall structure of a blood container according to the present application;

[0017] Figure 3 FIG. 3 is a schematic diagram of a separation barrel connection structure according to the present application;

[0018] Figure 4 FIG. 4 is a schematic diagram of a clamping plate connection structure according to the present application;

[0019] Figure 5 FIG. 5 is a schematic diagram of an internal structure of a connecting seat according to the present application.

[0020] In the drawings: 1, centrifugal outer barrel; 2, separation barrel; 3, extraction needle barrel; 31, piston push rod; 4, sealing cover; 5, piston seat; 6, clamping plate; 61, limiting protrusion; 62, sealing gasket; 7, clamping protruding ring; 8, limiting nozzle; 9, connecting seat; 91, clamping groove; 92, guide inclined groove; 10, handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0022] Refer toFigures 1-5 A separable blood container, comprising a centrifugal outer cylinder 1, a separation cylinder 2, an extraction needle cylinder 3, the separation cylinder 2 is movably installed in the inner part of the centrifugal outer cylinder 1, the top end of the separation cylinder 2 is provided with a piston seat 5 and is in extrusion contact with the inner wall of the centrifugal outer cylinder 1 to form a sealed cavity, and the inner part of the separation cylinder 2 movably installs the extraction needle cylinder 3, and the top of the extraction needle cylinder 3 is connected with the limiting mouth 8 provided at the top of the separation cylinder 2 through the connecting seat 9.

[0023] Further, the bottom end of the limiting mouth 8 is provided with a pair of clamping plates 6, the bottom end of the clamping plate 6 is provided with a limiting protrusion 61, the limiting protrusion 61 is clamped and installed in the clamping groove 91 opened in the connecting seat 9, and a plurality of sealing pads 62 are arranged on the inner wall of the clamping plate 6, and the sealing pads 62 are in extrusion contact with the top cylinder nozzle of the extraction needle cylinder 3.

[0024] Further, the cylinder nozzle of the centrifugal outer cylinder 1 is movably clamped and installed with a sealing cover 4.

[0025] Further, one end of the separation cylinder 2 is provided with a plurality of clamping convex rings 7, the clamping convex ring 7 is sleeved and installed with a piston seat 5, the piston seat 5 is movably installed in the inner cylinder wall of the centrifugal outer cylinder 1, and the piston seat 5 is movably installed in the inner cylinder wall of the centrifugal outer cylinder 1.

[0026] Further, the top of the separation cylinder 2 is provided with a limiting mouth 8, and the extraction nozzle of the extraction needle cylinder 3 is movably clamped and installed in the limiting mouth 8.

[0027] Further, the top of the extraction needle cylinder 3 is provided with a connecting seat 9, the middle part of the connecting seat 9 is provided with an extraction nozzle, and the inner wall of the connecting seat 9 is provided with a clamping groove 91 on both sides, one end of the clamping groove 91 is provided with a guide inclined groove 92, and one end of the guide inclined groove 92 is gradually inclined until it is flush with the inner wall of the connecting seat 9.

[0028] Further, when the extraction needle cylinder 3 is connected with the separation cylinder 2, the extraction nozzle of the extraction needle cylinder 3 penetrates into the limiting mouth 8, and is in communication with the inner cavity of the centrifugal outer cylinder 1.

[0029] In the embodiment, the handle 10 arranged at the bottom of the separation cylinder 2 is pulled to drive the separation cylinder 2 and the extraction needle cylinder 3 to move, and meanwhile, the blood to be detected is extracted into the extraction cavity between the separation cylinder 2 and the centrifugal outer cylinder 1, then the sealing cover 4 is connected with the centrifugal outer cylinder 1 to ensure the cavity airtightness, and after centrifugal processing by the external centrifugal machine, the blood is centrifugally stratified into three layers, i.e., supernatant (upper layer), platelet-rich plasma layer (middle layer) and red blood cell layer (lower layer), wherein the piston push rod 31 of the extraction needle cylinder 3 is pulled to extract the supernatant layer at the uppermost layer of the centrifugal outer cylinder 1 into the tube body of the extraction needle cylinder 3, and since the centrifugal outer cylinder 1 realizes an absolutely airtight cavity through the piston seat 5 and the sealing cover 4, the cavity volume is reduced to drive the separation cylinder 2 to move after the supernatant layer is extracted, and meanwhile, the extraction nozzle of the extraction needle cylinder 3 gradually approaches the middle layer in the continuous extraction process.

[0030] After the supernatant layer is completely extracted, the extraction needle cylinder 3 is rotated to one side to make the connecting seat 9 at the top of the extraction needle cylinder 3 disengage from the clamping plate 6 arranged inside the separation cylinder 2, and then the separation of the two is completed, and at this time, the extraction needle cylinder 3 can be taken out alone.

[0031] In actual use, the connecting seat 9 is arranged with a clamping groove 91 and a guide inclined groove 92, when the clamping plate 6 arranged at the bottom of the separation cylinder 2 vertically docks with the clamping groove 91, the extraction needle cylinder 3 is rotated to one side to drive the connecting seat 9 to rotate, the connecting seat 9 rotates and makes the clamping plate 6 move towards and clamp into the guide inclined groove 92, the guide inclined groove 92 is arranged in an inclined manner, and the inclined end gradually aligns with the inner wall of the connecting seat 9, when the clamping plate 6 clamps into the guide inclined groove 92, the slot of the guide inclined groove 92 becomes shallow and makes the clamping plate 6 move inwards and be pressed, and then the extraction nozzle of the extraction needle cylinder 3 inserted inside is pressed and contacted to ensure the connection tightness, and similarly, in the dismounting process of the extraction needle cylinder 3, the extraction needle cylinder 3 is rotated to make the clamping plate 6 disengage from the connecting seat 9.

[0032] In the utility model, the handle 10 drives the separation cylinder 2 to move and extracts the blood into the centrifugal outer cylinder 1, and under the action of the centrifugal machine, the blood is centrifugally stratified into three layers, wherein each layer is extracted by the extraction needle cylinder 3 in turn, and the extraction needle cylinder 3 is rotated to disengage from the separation cylinder 2, and then the blood is separated and extracted, the process operation is convenient, the container is arranged in an integrated manner, and the extraction precision is high.

[0033] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A blood container capable of separation and extraction, comprising a centrifuge outer cylinder (1), a separator cylinder (2), and an extraction syringe (3), characterized in that, The centrifuge outer cylinder (1) is internally limited and movablely installed with a separator cylinder (2). The top of the separator cylinder (2) is provided with a piston seat (5) and is pressed against the inner wall of the centrifuge outer cylinder (1) to form a sealed cavity. The separator cylinder (2) is internally limited and installed with a syringe (3). The top of the syringe (3) is connected to the limiting nozzle (8) provided on the top of the separator cylinder (2) through a connecting seat (9). The bottom end of the limiting nozzle (8) is equipped with a pair of snap-fit ​​plates (6). The bottom end of each snap-fit ​​plate (6) is provided with a limiting protrusion (61). The limiting protrusion (61) is snap-fitted into the snap-fit ​​groove (91) opened in the connecting seat (9). Multiple sealing gaskets (62) are provided on the inner wall of the snap-fit ​​plate (6). The sealing gaskets (62) are pressed and contacted with the top nozzle of the extraction syringe (3).

2. The detachable blood container according to claim 1, characterized in that, The centrifuge outer cylinder (1) is fitted with a sealing cap (4) at the nozzle.

3. The detachable blood container according to claim 1, characterized in that, Multiple snap-fit ​​protrusions (7) are provided on the outer side of one end of the separator (2). A piston seat (5) is sleeved on the snap-fit ​​protrusions (7). The piston seat (5) is slidably installed on the inner wall of the centrifugal outer cylinder (1).

4. The detachable blood container according to claim 3, characterized in that, The top of the separator (2) is provided with a limiting nozzle (8), and the extraction nozzle of the extraction syringe (3) is installed inside the limiting nozzle (8).

5. A detachable blood container according to claim 1, characterized in that, The top of the extraction syringe (3) is provided with a connecting seat (9), the middle of the connecting seat (9) is provided with its extraction nozzle, and the inner walls of the connecting seat (9) are provided with corresponding snap-fit ​​grooves (91). One end of the snap-fit ​​groove (91) is connected to a guide groove (92), and one end of the guide groove (92) is gradually inclined until it is flush with the inner wall of the connecting seat (9).

6. A detachable and extractable blood container according to claim 1, characterized in that, When the extraction syringe (3) is connected to the separator (2), the extraction nozzle of the extraction syringe (3) is inserted into the limiting nozzle (8) and communicates with the internal cavity of the centrifuge outer cylinder (1).

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