A split extraction cannula device

Abstract

The present application relates to the technical fields of separation and extraction cannula, in particular to a separation and extraction cannula device, the extraction cannula assembly comprises a tube body, a first extraction hole, a second extraction hole, a third extraction hole, a fourth extraction hole, a sealing plug, a rubber column, a blocking ring and an inner clamping groove, the tube body is provided with an exhaust type cap assembly, and an integrated sealing cannula structure; after centrifugal separation, the separated plasma layer does not need to be separately loaded into other containers, thereby reducing the risk of contamination; when blood cells are separated, no separation reagent is used, thereby avoiding the unsafe hidden danger caused by the residue of the separation agent; the preparation parts are single, the structure is simple, operation is convenient, application is popularized, the preparation cost is low, the price is cheap, the promotion is flexible in the clinic and various industries, and the device is easily accepted by all circles of the society; when the inside of the tube body is in a low negative pressure state, the subsequent liquid extraction is more convenient, the contact between air and liquid is reduced, and the risk of liquid infection is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of separation and extraction cannula, in particular to a separation and extraction cannula device. BACKGROUND

[0002] Platelet-rich plasma refers to the platelet concentrate extracted from whole blood after centrifugation, which has a concentration several times higher than physiological concentration and contains white blood cells and fibrin. After activation, platelets can release a large amount of growth factors and inflammatory mediators, which can protect chondrocytes, control infection, reduce local inflammatory response, accelerate wound healing, maintain joint homeostasis, and participate in soft tissue repair and regeneration. At the same time, the fibrinogen in PRP can be activated to form fibrin glue to fill tissue defects. PRP treatment has the characteristics of autologous origin, no immune rejection, and relatively simple preparation. Therefore, it is widely used in the fields of orthopedics, rehabilitation, burn surgery, oral surgery, maxillofacial surgery, sports medicine, and beauty.

[0003] At present, PRP is mostly prepared by open manual secondary centrifugation method. The existing PRP preparation method has the following defects: the open preparation system is easily contaminated by the outside world; the separation reagent is used during blood cell separation, which is easy to cause residual separation agent; the preparation parts are more, the structure is complex, and it is not convenient to operate and apply; the preparation cost is high, the price is expensive, and the PRP technology is greatly limited in clinical and industry application promotion, especially not conducive to the promotion and application in hospitals. SUMMARY

[0004] The purpose of the present application is to provide a separation and extraction cannula device to solve the problems mentioned above.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a separation and extraction cannula device, the extraction cannula assembly comprises a tube body, a first extraction hole, a second extraction hole, a third extraction hole, a fourth extraction hole, a sealing plug, a rubber column, a retaining ring and an inner clamping groove, wherein the first extraction hole is provided on the tube body, the second extraction hole is provided on the tube body, the third extraction hole is provided on the tube body, the fourth extraction hole is provided on the tube body, the sealing plug is arranged inside the four extraction holes, the rubber column is arranged through the sealing plug, the retaining ring is arranged on one side of the sealing plug, and the inner clamping groove is arranged inside the tube body.

[0006] An exhaust type pipe cap assembly is arranged on the tube body.

[0007] Preferably, the first extraction hole, the second extraction hole, the third extraction hole and the fourth extraction hole are sequentially arranged from bottom to top on the tube body, the retaining ring is arranged inside the extraction hole, and the retaining ring and the tube body are fixedly connected.

[0008] Preferably, the pipe cap assembly comprises a sealing cap, an inflatable air bag, a connecting ring, an extension cylinder, an elastic sheet, a vent hole, a cross pipe and a communication pipe, wherein the inflatable air bag is embedded on the sealing cap, the connecting ring is fixed on the upper side of the sealing cap, the extension cylinder is sleeved on the outer side of the connecting ring, the elastic sheet is fixed on the extension cylinder in a bulging manner, the vent hole is uniformly arranged on the elastic sheet, the cross pipe is arranged through the sealing cap, and the communication pipe is symmetrically inserted into the inflatable air bag.

[0009] Preferably, the sealing cap is inserted into the upper side of the pipe body, the connecting ring is screw-connected with the extension cylinder, the cross pipe is located on the lower side of the elastic sheet, the communication pipe is embedded in the inner side of the sealing cap, and the communication pipe is inserted into the inner side of the cross pipe away from the inflatable air bag.

[0010] Preferably, the lower side of the sealing cap is provided with a floating ring, the upper side of the floating ring is symmetrically provided with fixedly-connected supporting rods, the supporting rods are fixedly connected with abutting plates away from the floating ring, the upper side of the floating ring is symmetrically provided with fixedly-connected guide cylinders, the inner side of the guide cylinder is provided with a guide rod arranged through the guide cylinder, and the guide rod is fixed on the sealing cap.

[0011] Preferably, the lower side of the elastic sheet is provided with a fixedly-connected receiving cylinder, the receiving cylinder is uniformly provided with through grooves, the lower side of the receiving cylinder is provided with a fixedly-connected upper limiting frame, the inner side of the upper limiting frame is provided with a reset spring, the receiving cylinder is provided with a fixedly-connected exhaust pipe arranged through the receiving cylinder, the receiving cylinder is provided with a fixedly-connected linkage rod, and the linkage rod is uniformly provided with fixedly-connected tooth blocks.

[0012] Preferably, the upper side of the cross pipe is provided with a fixedly-connected lower limiting frame, the reset spring is arranged on the upper side of the lower limiting frame, the exhaust pipe is inserted into the inner side of the cross pipe, the linkage rod is arranged through the lower limiting frame, and the tooth blocks are arranged in the inner side of the cross pipe.

[0013] Preferably, the inner side of the cross pipe is provided with an expansion groove, the communication pipe is inserted into the inner side of the expansion groove, the inner side of the cross pipe is provided with a rotating gear, the middle part of the rotating gear is provided with a fixedly-connected fixed rod arranged through the rotating gear, the fixed rod is fixed on the cross pipe, and one side of the rotating gear is provided with a movable tooth rod.

[0014] Preferably, the inner side of the cross pipe is provided with a pull-out disc, the outer side of the pull-out disc is embedded with a leakage-proof ring, the upper side of the pull-out disc is provided with a fixedly-connected connecting disc, and one side of the connecting disc is provided with a fixedly-connected upper and lower communication pipe.

[0015] Preferably, the upper and lower through pipes pass through the pull-out disc, wherein a first one-way valve is provided on the upper side of the upper and lower through pipes, the connecting disc is fixedly connected to the moving gear, and a distance-extending pipe is provided through the lower side of the transverse pipe, wherein a second one-way valve is provided on the upper side of the distance-extending pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The integrated sealed sleeve structure eliminates the need to transfer the separated plasma layer to another container after centrifugation, thus reducing the risk of contamination. No separation reagents are used during the separation of blood cells, avoiding safety hazards caused by residual separation agents. The single-component manufacturing process and simple structure facilitate operation, application, and promotion. The low manufacturing cost and affordable price make it flexible for clinical and industry-wide adoption and easily accepted by the public.

[0018] After the sealing cap is inserted into the tube body, the elastic sheet can be pressed down to deform downwards, causing the receiving cylinder to move downwards along with the linkage rod. At this time, the return spring undergoes a stored deformation. When the linkage rod moves downwards, the moving gear moves upwards under the action of the rotating gear. At this time, the pull-out plate is inside the transverse tube and uses the extension tube to extract the air inside the tube body. The connecting plate can also discharge the air inside the transverse tube. Some of the air will enter the interior of the inflatable airbag through the interconnecting pipe, causing the inflatable airbag to expand and increase the seal between the sealing cap and the tube body.

[0019] When the inside of the tube is under low negative pressure, it is more conducive to the subsequent extraction of liquid, making the extraction of liquid more convenient, and reducing the contact between air and liquid, thus reducing the risk of liquid infection. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a right-side half-section schematic diagram of the tube body of the present invention.

[0022] Figure 3 This is a three-dimensional half-section diagram of the tube body of the present invention.

[0023] Figure 4 This is a schematic cross-sectional view of the tube body of the present invention.

[0024] Figure 5 This is a right-side view of the sealing plug of the present invention.

[0025] Figure 6 This is a half-section perspective view of the sealing cap of the present invention.

[0026] Figure 7 This is a three-dimensional schematic diagram of the interconnection pipe of the present invention.

[0027] Figure 8 This is a partial three-dimensional schematic diagram of the transverse tube of the present invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of the pull-out tray of the present invention.

[0029] Figure 10 This is a three-dimensional schematic diagram of the elastic sheet of the present invention.

[0030] In the diagram: 1. Tube body; 11. First extraction hole; 12. Second extraction hole; 13. Third extraction hole; 14. Fourth extraction hole; 15. Sealing plug; 16. Rubber column; 17. Retaining ring; 18. Inner groove; 2. Sealing cap; 201. Floating ring; 202. Support rod; 203. Adhesive plate; 204. Guide cylinder; 205. Guide rod; 21. Inflatable airbag; 22. Connecting ring; 23. Extension cylinder; 24. Elastic sheet; 2401. Receiving cylinder; 2402. Through groove; 24 03. Upper limiting frame; 2404. Return spring; 2405. Exhaust pipe; 2406. Linkage rod; 2407. Toothed block; 25. Vent hole; 26. Transverse pipe; 2601. Lower limiting frame; 2602. Expanding groove; 2603. Rotating gear; 2604. Fixed rod; 2605. Moving toothed rod; 2606. Pull-out plate; 2607. Leak-proof ring; 2608. Connecting plate; 2609. Upper and lower through pipes; 2610. Spacing pipe; 2611. Second one-way valve; 27. Interconnecting pipe. Detailed Implementation

[0031] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific configurations and algorithms presented below, but covers any modifications, substitutions, and improvements to elements, components, and algorithms without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description in order to avoid unnecessarily obscuring the invention.

[0032] Please see Figures 1 to 10The application provides a technical scheme: an extraction sleeve assembly, the extraction sleeve assembly comprises a tube body 1, a first extraction hole 11, a second extraction hole 12, a third extraction hole 13, a fourth extraction hole 14, a sealing plug 15, a rubber column 16, a blocking ring 17 and an inner clamping groove 18, wherein the first extraction hole 11 is arranged on the tube body 1, and the second extraction hole 12 is arranged on the tube body 1, wherein the third extraction hole 13 is arranged on the tube body 1, and the fourth extraction hole 14 is arranged on the tube body 1, the first extraction hole 11, the second extraction hole 12, the third extraction hole 13 and the fourth extraction hole 14 are sequentially arranged on the tube body 1 from bottom to top, wherein the sealing plug 15 is arranged in the four extraction holes, the four extraction holes are the first extraction hole 11, the second extraction hole 12, the third extraction hole 13 and the fourth extraction hole 14, the rubber column 16 penetrates through the sealing plug 15, wherein the blocking ring 17 is located on one side of the sealing plug 15, and the inner clamping groove 18 is arranged in the tube body 1.

[0033] The integrated sealing sleeve structure is used, after centrifugal separation, the separated plasma layer does not need to be additionally arranged in other containers, so that the risk of pollution is reduced, when blood cells are separated, no separation reagent is used, and the unsafe hidden danger caused by the separation reagent residue is avoided, the preparation part is single, the structure is simple, operation is convenient, application is popularized, the preparation cost is low, the price is cheap, the popularization is flexible in the clinic and various industries, and the application is easily accepted by all circles of the society.

[0034] The tube body 1 is provided with a vent type pipe cap assembly. The pipe cap assembly, the tube body 1 and the sealing plug 15 form a sealed sleeve, and a corresponding negative pressure state is maintained, so that the sleeve stores blood in the sleeve through the pipe cap assembly in a negative pressure and sterile state, after the separation work is completed through the centrifugal equipment, the separated concentrated material is extracted layer by layer from top to bottom through the first extraction hole 11, the second extraction hole 12, the third extraction hole 13 and the fourth extraction hole 14 by using a syringe or other extraction equipment, and then the concentrated extract is fully utilized.

[0035] The first extraction hole 11, the second extraction hole 12, the third extraction hole 13 and the fourth extraction hole 14 are sequentially arranged on the tube body 1 from bottom to top, wherein the blocking ring 17 is arranged in the extraction hole, and the blocking ring 17 is fixedly connected with the tube body 1. When the sealing plug 15 is inserted into the extraction hole, the sealing plug 15 can be attached to the blocking ring 17.

[0036] The pipe cap assembly comprises a sealing cap 2, an inflatable air bag 21, a connecting ring 22, an extension cylinder 23, an elastic sheet 24, a gas permeable hole 25, a transverse pipe 26 and a communication pipe 27, wherein the inflatable air bag 21 is embedded on the sealing cap 2, the connecting ring 22 is fixed on the upper side of the sealing cap 2, the extension cylinder 23 is sleeved on the outer side of the connecting ring 22, the elastic sheet 24 is bulgedly fixed on the extension cylinder 23, the elastic sheet 24 is arranged in an arc shape, the gas permeable hole 25 is uniformly arranged on the elastic sheet 24, the transverse pipe 26 is arranged through the sealing cap 2, and the communication pipe 27 is symmetrically inserted into the inflatable air bag 21. When the sealing cap 2 is inserted into the pipe body 1, the position of the inflatable air bag 21 corresponds to the position of the inner clamping groove 18.

[0037] The sealing cap 2 is inserted into the upper side of the pipe body 1, the connecting ring 22 is screw-connected with the extension cylinder 23, the transverse pipe 26 is arranged on the lower side of the elastic sheet 24, the communication pipe 27 is embedded in the inner side of the sealing cap 2, and the communication pipe 27 is inserted into the inner side of the transverse pipe 26 away from the inflatable air bag 21.

[0038] A floating ring 201 is arranged below the sealing cap 2, the floating ring 201 has the function of floating when meeting liquid, the upper side of the floating ring 201 is symmetrically provided with fixedly-connected supporting rods 202, the supporting rods 202 are fixedly connected with abutting plates 203 away from the floating ring 201, the upper side of the floating ring 201 is symmetrically provided with fixedly-connected guide cylinders 204, the inner side of the guide cylinders 204 is provided with guide rods 205, and the guide rods 205 are fixed on the sealing cap 2. When the inner side of the pipe body 1 is subjected to negative pressure suction, once the pipe body 1 is excessively inclined, liquid will touch the floating ring 201, the floating ring 201 will float, and at this time, the abutting plates 203 will also float upward under the action of the supporting rods 202.

[0039] The lower side of the elastic sheet 24 is provided with a fixedly-connected receiving cylinder 2401, the receiving cylinder 2401 is uniformly provided with through grooves 2402, the lower side of the receiving cylinder 2401 is provided with a fixedly-connected upper limiting frame 2403, the inner side of the upper limiting frame 2403 is provided with a reset spring 2404, the receiving cylinder 2401 is provided with a fixedly-connected exhaust pipe 2405, the receiving cylinder 2401 is provided with a fixedly-connected linkage rod 2406, and the linkage rod 2406 is uniformly provided with fixedly-connected tooth blocks 2407.

[0040] The upper side of the transverse pipe 26 is provided with a fixedly-connected lower limiting frame 2601, the reset spring 2404 is arranged on the upper side of the lower limiting frame 2601, the exhaust pipe 2405 is inserted into the inner side of the transverse pipe 26, the linkage rod 2406 penetrates through the lower limiting frame 2601, and the tooth blocks 2407 are arranged in the inner side of the transverse pipe 26.

[0041] The inside of the transverse pipe 26 is provided with an expansion groove 2602, the intercommunication pipe 27 is inserted into the inside of the expansion groove 2602, the inside of the transverse pipe 26 is provided with a rotating gear 2603, the middle of the rotating gear 2603 is provided with a fixed rod 2604 fixedly connected, the fixed rod 2604 is fixed on the transverse pipe 26, and one side of the rotating gear 2603 is provided with a moving tooth rod 2605.

[0042] The inside of the transverse pipe 26 is provided with a pull-out disc 2606, the outer side of the pull-out disc 2606 is embedded with a leakage-proof ring 2607, the upper side of the pull-out disc 2606 is provided with a connecting disc 2608 fixedly connected, one side of the connecting disc 2608 is provided with an up-down through pipe 2609 fixedly connected, the up-down through pipe 2609 penetrates the pull-out disc 2606, the upper side of the up-down through pipe 2609 is provided with a first one-way valve, the connecting disc 2608 is fixedly connected with the moving tooth rod 2605, the lower side of the transverse pipe 26 is provided with an increased distance pipe 2610, and the upper side of the increased distance pipe 2610 is provided with a second one-way valve 2611.

[0043] After the sealing cap 2 is inserted into the inside of the pipe body 1, the elastic sheet 24 can be pressed downward, so that the elastic sheet 24 is deformed downward, the receiving cylinder 2401 moves downward with the linkage rod 2406, the reset spring 2404 is deformed to store force, the linkage rod 2406 moves downward, under the action of the rotating gear 2603, the moving tooth rod 2605 moves upward, at this time, the pull-out disc 2606 is in the inside of the transverse pipe 26, the air in the inside of the pipe body 1 is extracted by the increased distance pipe 2610, the connecting disc 2608 can discharge the air in the inside of the transverse pipe 26, part of the air enters the inside of the inflatable air bag 21 through the intercommunication pipe 27, the inflatable air bag 21 is inflated, and the sealing between the sealing cap 2 and the pipe body 1 is increased;

[0044] When the inside of the pipe body 1 is in a low negative pressure state, it is more helpful for subsequent liquid extraction, the liquid extraction is more convenient, and the risk of liquid infection is reduced.

[0045] The negative pressure is lower than the negative pressure state of the device in which the pipe body 1 is placed.

[0046] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed embodiments, based on the teachings of the disclosure, the drawings and the appended claims. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite articles "a" and "an" do not exclude a plurality; the term "first", "second", "third" etc. are used to distinguish names only and not to imply any particular order. Any reference signs in the claims should not be construed as limiting the scope of the claims. The functions of the various parts of the claims can be performed by a single dedicated hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. An isolated extraction cannula device comprising an extraction cannula assembly, characterized by: The extraction sleeve assembly includes a tube body (1), a first extraction hole (11), a second extraction hole (12), a third extraction hole (13), a fourth extraction hole (14), a sealing plug (15), a rubber column (16), a blocking ring (17) and an inner clamping groove (18), wherein the first extraction hole (11) is provided on the tube body (1), the second extraction hole (12) is provided on the tube body (1), the third extraction hole (13) is provided on the tube body (1), the fourth extraction hole (14) is provided on the tube body (1), the sealing plug (15) is arranged inside the four extraction holes, the rubber column (16) is arranged through the sealing plug (15), the blocking ring (17) is arranged on one side of the sealing plug (15), and the inner clamping groove (18) is arranged inside the tube body (1); An exhaust type pipe cap assembly is arranged on the tube body (1); The pipe cap assembly includes a sealing cap (2), an inflatable air bag (21), an elastic sheet (24), a transverse pipe (26) and an intercommunication pipe (27), wherein the inflatable air bag (21) is embedded on the sealing cap (2), the transverse pipe (26) is arranged through the sealing cap (2), the intercommunication pipe (27) is symmetrically inserted into the inflatable air bag (21), the side of the intercommunication pipe (27) away from the inflatable air bag (21) is inserted into the inside of the transverse pipe (26), the lower side of the elastic sheet (24) is provided with a fixedly connected receiving cylinder (2401), the lower side of the receiving cylinder (2401) is provided with a fixedly connected upper limiting frame (2403), the receiving cylinder (2401) is provided with a fixedly connected linkage rod (2406), the linkage rod (2406) is uniformly provided with fixedly connected tooth blocks (2407), the upper side of the transverse pipe (26) is provided with a fixedly connected lower limiting frame (2601), the tooth blocks (2407) are arranged inside the transverse pipe (26), the inside of the transverse pipe (26) is provided with a rotating gear (2603), one side of the rotating gear (2603) is provided with a moving gear rod (2605), and the other side of the rotating gear (2603) is provided with a fixed rod (2604) arranged through the middle part. The inside of the transverse pipe (26) is provided with a pull-out disc (2606), wherein the outer side of the pull-out disc (2606) is embedded with a leakage-proof ring (2607), the upper side of the pull-out disc (2606) is provided with a fixedly connected connecting disc (2608), one side of the connecting disc (2608) is provided with a fixedly connected up-down through pipe (2609), the up-down through pipe (2609) penetrates the pull-out disc (2606), the upper side of the up-down through pipe (2609) is provided with a first one-way valve, the connecting disc (2608) and the moving toothed rod (2605) are fixedly connected, the lower side of the transverse pipe (26) penetrates a distance increasing pipe (2610), the upper side of the distance increasing pipe (2610) is provided with a second one-way valve (2611), when the linkage rod (2406) moves downward, the moving toothed rod (2605) moves upward under the action of the rotating gear (2603).

2. A separation and extraction cannula device according to claim 1, characterized in that: The first extraction hole (11), the second extraction hole (12), the third extraction hole (13) and the fourth extraction hole (14) are sequentially arranged on the pipe body (1) from bottom to top, wherein the blocking ring (17) is arranged in the extraction hole, and the blocking ring (17) and the pipe body (1) are fixedly connected.

3. A separate extraction cannula device according to claim 2, characterized in that: The pipe cap assembly further comprises a connecting ring (22), an extension cylinder (23) and a ventilation hole (25), the connecting ring (22) is fixed on the upper side of the sealing cap (2), the extension cylinder (23) is sleeved on the outer side of the connecting ring (22), the elastic sheet (24) is bulgedly fixed on the extension cylinder (23), and the ventilation holes (25) are uniformly arranged on the elastic sheet (24).

4. A separate extraction cannula device according to claim 3, characterized in that: The sealing cap (2) is inserted into the upper side of the pipe body (1), the connecting ring (22) and the extension cylinder (23) are screw-connected, the transverse pipe (26) is below the elastic sheet (24), and the intercommunication pipe (27) is embedded in the sealing cap (2).

5. A separate extraction cannula device according to claim 4, characterized in that: The lower side of the sealing cap (2) is provided with a floating ring (201), the upper side of the floating ring (201) is symmetrically provided with fixedly connected supporting rods (202), one side of the supporting rod (202) away from the floating ring (201) is provided with a fixedly connected abutting plate (203), the upper side of the floating ring (201) is symmetrically provided with fixedly connected guide cylinders (204), the inside of the guide cylinder (204) penetrates a guide rod (205), and the guide rod (205) is fixed on the sealing cap (2).

6. A separate extraction cannula device according to claim 5, characterized in that: The upper limiting frame (2403) is provided with a reset spring (2404), and the receiving cylinder (2401) penetrates a fixedly connected exhaust pipe (2405).

7. A separate extraction cannula device according to claim 6, characterized in that: The reset spring (2404) is arranged on the upper side of the lower limiting frame (2601), the exhaust pipe (2405) is inserted into the inside of the transverse pipe (26), and the linkage rod (2406) penetrates the lower limiting frame (2601).

8. A separate extraction cannula device according to claim 7, characterized in that: The inside of the transverse pipe (26) is provided with an expansion groove (2602), and the intercommunication pipe (27) is inserted into the inside of the expansion groove (2602), and the fixing rod (2604) is fixed on the transverse pipe (26).

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