Threaded locking type centrifugal cannula and blood collection tube integrated platelet rich plasma preparation kit

Abstract

The utility model discloses a threaded locking type centrifugal cannula and blood collection tube integrated platelet rich plasma preparation suit, including storage mechanism and bottom sealing mechanism, the inside sliding joint of storage mechanism has sealed extraction mechanism, is perforated with the extraction groove on the sealed extraction mechanism, the inside screw connection of sealed extraction mechanism has the plasma extraction mechanism, be provided with the position locking mechanism of plasma extraction mechanism position locking on the plasma extraction mechanism. The utility model sets up sealed extraction mechanism and plasma extraction mechanism screw connection, can be through bottom sealing mechanism to the bottom sealing of storage mechanism after blood extraction is completed, can utilize plasma extraction mechanism and extract the plasma after separation subsequently, make plasma extraction mechanism and sealed extraction mechanism separate again and rotate, and the position locking mechanism set up when the patient blood extraction can carry out position positioning to plasma extraction mechanism.

Description

Technical Field

[0001] This utility model relates to the field of plasma preparation technology, specifically to an integrated platelet-rich plasma preparation kit that combines a threaded locking centrifuge sleeve and a blood collection tube. Background Technology

[0002] A platelet-rich plasma (PRP) preparation kit is a medical device specifically designed to extract platelet-rich plasma from a patient's own blood. PRP therapy utilizes components of the patient's own blood to promote tissue repair and regeneration, and is widely used in various fields such as orthopedics, sports medicine, and plastic surgery.

[0003] In the preparation of platelet-rich plasma (PRP), patient blood needs to be drawn and then centrifuged. Existing centrifugation methods mostly use test tubes for direct centrifugation, but this method can easily cause secondary fusion of plasma and blood cells during the extraction process. Furthermore, if the plasma extraction mechanism is displaced during the blood extraction or high-speed centrifugation, it can significantly affect the plasma centrifugation extraction effect. To address this, we propose an integrated platelet-rich plasma preparation kit with a threaded locking centrifugation sleeve and a blood collection tube. Utility Model Content

[0004] The purpose of this invention is to provide an integrated platelet-rich plasma preparation kit that combines a threaded locking centrifuge sleeve and a blood collection tube, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated platelet-rich plasma preparation kit with a threaded locking centrifuge sleeve and a blood collection tube, comprising a storage mechanism, a bottom sealing mechanism for sealing the bottom of the storage mechanism, a sealing extraction mechanism slidably connected inside the storage mechanism, an extraction groove through the sealing extraction mechanism, a plasma extraction mechanism for plasma storage threadedly connected inside the sealing extraction mechanism, and a position locking mechanism for locking the position of the plasma extraction mechanism.

[0006] Furthermore, the storage mechanism includes a storage tube, a first extraction head, and a limiting groove. The bottom of the storage tube is fixedly connected to the first extraction head, and limiting grooves are formed on both sides of the inner wall of the storage tube.

[0007] Furthermore, the bottom sealing mechanism includes a base plate, a sealing sleeve, and a chamfer. The top of the base plate is fixedly connected to a sealing sleeve that is fitted onto the outside of the first extraction head. The top of the inner wall of the sealing sleeve is provided with an inclined chamfer.

[0008] Furthermore, the sealing extraction mechanism includes a threaded connecting sleeve, a first rubber plug, and a limiting boss. The bottom of the threaded connecting sleeve is fixedly connected to a first rubber plug made of rubber material that fits against the inner wall of the storage tube. The outside of the first rubber plug is fixedly connected to a limiting boss made of rubber material, and the outside of the limiting boss fits against the inner wall of the limiting groove.

[0009] Furthermore, the plasma extraction mechanism includes an extraction tube, a second extraction head, an external thread, a connecting frame, and a second rubber plug. The bottom of the extraction tube is fixedly connected to the second extraction head, and the outside of the extraction tube is provided with an external thread that is threadedly connected to the threaded connecting sleeve. The bottom of the connecting frame is fixedly connected to the second rubber plug that fits against the inner wall of the extraction tube, and the top of the connecting frame is fixedly connected to a top plate. The top of the outer wall of the extraction tube is fixedly connected to a connecting plate.

[0010] Furthermore, the position locking mechanism includes a limiting seat, a baffle, and a knob. Two sets of limiting seats are fixedly connected to the top of the connecting plate. A baffle that is inserted into the limiting seat is fixedly connected to the outer wall of the top plate. A knob is fixedly connected to the top of the top plate. The top edge of the baffle is set to be arc-shaped.

[0011] Compared with the prior art, the present invention has the following advantages: The sealing extraction mechanism of the present invention is set inside the storage mechanism, and the subsequently set sealing extraction mechanism is threadedly connected to the plasma extraction mechanism, so that the patient's blood can be extracted. After the blood extraction is completed, the bottom of the storage mechanism can be sealed by the bottom sealing mechanism. After the plasma separation is completed, the separated plasma can be extracted by the plasma extraction mechanism. Then, the plasma extraction mechanism and the sealing extraction mechanism are separated by rotation. The position locking mechanism set during the patient's blood extraction can position the plasma extraction mechanism to prevent the patient's blood from entering the plasma extraction mechanism in advance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the storage mechanism and the bottom sealing mechanism of this utility model;

[0014] Figure 3 This is a three-dimensional structural schematic diagram of the sealing and extraction mechanism of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the plasma extraction mechanism of this utility model.

[0016] In the diagram: 1 Storage mechanism, 2 Bottom sealing mechanism, 3 Sealed extraction mechanism, 4 Extraction groove, 5 Plasma extraction mechanism, 6 Position locking mechanism, 7 Storage tube, 8 First extraction head, 9 Limiting groove, 10 Base plate, 11 Sealing sleeve, 12 Chamfer, 13 Threaded connecting sleeve, 14 First rubber plug, 15 Limiting boss, 16 Extraction tube, 17 Second extraction head, 18 External thread, 19 Connecting frame, 20 Second rubber plug, 21 Top plate, 22 Connecting plate, 23 Limiting seat, 24 Baffle, 25 Knob. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 This utility model provides a technical solution: an integrated platelet-rich plasma preparation kit with a threaded locking centrifuge sleeve and a blood collection tube, including a storage mechanism 1. The bottom of the storage mechanism 1 is provided with a bottom sealing mechanism 2 to seal the bottom of the storage mechanism 1. A sealing extraction mechanism 3 is slidably connected inside the storage mechanism 1. An extraction groove 4 is provided through the sealing extraction mechanism 3. A plasma extraction mechanism 5 for plasma storage is threadedly connected inside the sealing extraction mechanism 3. A position locking mechanism 6 is provided on the plasma extraction mechanism 5 to lock the position of the plasma extraction mechanism 5.

[0019] The sealing extraction mechanism 3 is located inside the storage mechanism 1. The sealing extraction mechanism 3 is then threadedly connected to the plasma extraction mechanism 5, allowing for the extraction of blood from the patient. After the blood extraction is completed, the bottom of the storage mechanism is sealed by the bottom sealing mechanism 2. After the plasma separation is completed, the plasma extraction mechanism 5 can be used to extract the separated plasma. Then, the plasma extraction mechanism 5 is rotated to separate the plasma extraction mechanism 5 from the sealing extraction mechanism 3. The position locking mechanism 6, which is set during the extraction of the patient's blood, can position the plasma extraction mechanism 5 to prevent the patient's blood from entering the plasma extraction mechanism 5 prematurely.

[0020] Please see Figures 1-4The storage mechanism 1 includes a storage tube 7, a first extraction head 8, and a limiting groove 9. The bottom of the storage tube 7 is fixedly connected to the first extraction head 8. Limiting grooves 9 are formed on both sides of the inner wall of the storage tube 7. The bottom sealing mechanism 2 includes a base plate 10, a sealing sleeve 11, and a chamfer 12. The inner wall of the sealing sleeve 11 is provided with a threaded groove. The outer wall of the first extraction head 8 is provided with an external thread that is threadedly connected to the threaded groove. The top of the base plate 10 is fixedly connected to the sealing sleeve 11, which is sleeved on the outside of the first extraction head 8. The top of the inner wall of the sealing sleeve 11 is provided with an inclined chamfer 12.

[0021] After the blood is drawn into the storage tube 7, the sealing sleeve 11 at the top of the base plate 10 is threadedly connected to the first extraction head 8 to seal it, which can prevent blood from leaking out during high centrifugation. The chamfer 12 on the inner wall of the sealing sleeve 11 can facilitate the sealing sleeve 11 to be placed outside the first extraction head 8.

[0022] Please see Figure 1 and Figure 3 The sealing extraction mechanism 3 includes a threaded connecting sleeve 13, a first rubber plug 14, and a limiting boss 15. The bottom of the threaded connecting sleeve 13 is fixedly connected to a first rubber plug 14 made of rubber material that fits against the inner wall of the storage tube 7. The outside of the first rubber plug 14 is fixedly connected to a limiting boss 15 made of rubber material. The outside of the limiting boss 15 fits against the inner wall of the limiting groove 9.

[0023] During the installation of the sealed extraction mechanism 3, the limiting boss 15 can be inserted into the limiting groove 9 for limiting, and the outer wall of the limiting boss 15 can contact and fit with the inner wall of the limiting groove 9. The first rubber stopper 14 can fully contact the inner wall of the storage tube 7, so that blood can be extracted through the sealed space. Moreover, the plasma extraction mechanism 5 is threadedly connected to the threaded connecting sleeve 13. In this way, when the plasma extraction mechanism 5 and the threaded connecting sleeve 13 are separated, the limiting boss 15 and the limiting groove 9 can limit the separation, so that the plasma extraction mechanism 5 and the threaded connecting sleeve 13 can be quickly separated.

[0024] Please see Figures 1-4 The plasma extraction mechanism 5 includes an extraction tube 16, a second extraction head 17, an external thread 18, a connecting frame 19, and a second rubber stopper 20. The bottom of the extraction tube 16 is fixedly connected to the second extraction head 17. The outside of the extraction tube 16 is provided with an external thread 18 that is threadedly connected to the threaded connecting sleeve 13. The bottom of the connecting frame 19 is fixedly connected to the second rubber stopper 20 that fits against the inner wall of the extraction tube 16. The top of the connecting frame 19 is fixedly connected to a top plate 21. The top of the outer wall of the extraction tube 16 is fixedly connected to a connecting plate 22.

[0025] The external thread 18 of the extraction tube 16 can be threadedly connected to the threaded connecting sleeve 13. Then the second extraction head 17 can be extended into the storage tube 7 through the extraction groove 4. When it is necessary to extract the plasma after centrifugation, the top plate 21, the connecting frame 19 and the second rubber plug 20 are pulled up, so that the plasma after centrifugation can be quickly extracted and used.

[0026] Please see Figure 4 The position locking mechanism 6 includes a limiting seat 23, a baffle 24 and a knob 25. Two sets of limiting seats 23 are fixedly connected to the top of the connecting plate 22. A baffle 24 that is inserted into the limiting seat 23 is fixedly connected to the outer wall of the top plate 21. A knob 25 is fixedly connected to the top of the top plate 21. The top edge of the baffle 24 is set to be arc-shaped.

[0027] When drawing blood from a patient, the baffle 24 on the outer side of the top plate 21 can first engage with the inside of the limiting seat 23. Then, when plasma needs to be drawn, the knob 25 is rotated to rotate the top plate 21, so that the baffle 24 moves away from the inside of the limiting seat 23. This makes it easy to pull the top plate 21 to draw plasma.

[0028] In use, firstly, the sealing extraction mechanism 3 is installed inside the storage mechanism 1. Then, the sealing extraction mechanism 3 is threadedly connected to the plasma extraction mechanism 5, allowing for the extraction of patient blood. After blood extraction is complete, the bottom of the storage mechanism is sealed using the bottom sealing mechanism 2. After plasma separation, the separated plasma is extracted using the plasma extraction mechanism 5. Then, the plasma extraction mechanism 5 is rotated to separate from the sealing extraction mechanism 3. During patient blood extraction, the position locking mechanism 6 can lock the plasma extraction mechanism 5. Positioning is performed to prevent the blood from entering the plasma extraction mechanism 5 prematurely during patient blood collection. After the blood is drawn into the storage tube 7, the sealing sleeve 11 at the top of the base plate 10 is threadedly connected to the first extraction head 8 for sealing. This prevents blood leakage during high centrifugation. The chamfer 12 on the inner wall of the sealing sleeve 11 facilitates its placement outside the first extraction head 8. During the installation of the sealing extraction mechanism 3, the limiting boss 15 can be inserted into the limiting groove 9 for limiting, and the outer side of the limiting boss 15... The wall can contact and fit with the inner wall of the limiting groove 9, while the first rubber stopper 14 can fully contact the inner wall of the storage tube 7, thereby allowing blood to be drawn through the sealed space. Furthermore, the plasma extraction mechanism 5 is threadedly connected to the threaded connecting sleeve 13, so that when the plasma extraction mechanism 5 and the threaded connecting sleeve 13 are separated, they can be limited by the limiting boss 15 and the limiting groove 9, allowing for rapid separation. The external thread 18 on the outside of the extraction tube 16 can be threadedly connected to the threaded connecting sleeve 13, and then the second extraction head 17... The extraction slot 4 can extend into the storage tube 7. When it is necessary to extract plasma after centrifugation, the top plate 21, connecting frame 19 and second rubber stopper 20 are pulled upwards, so that the plasma after centrifugation can be quickly extracted and used. When extracting blood from a patient, the baffle 24 on the outside of the top plate 21 can first be locked and positioned inside the limiting seat 23. Then, when it is necessary to extract plasma, the knob 25 is rotated to rotate the top plate 21, so that the baffle 24 is moved away from the inside of the limiting seat 23, so that the top plate 21 can be easily pulled to extract plasma.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A threaded locking centrifuge sleeve and blood collection tube integrated platelet-rich plasma preparation kit, comprising a storage mechanism (1), wherein the bottom of the storage mechanism (1) is provided with a bottom sealing mechanism (2) for sealing the bottom of the storage mechanism (1), characterized in that: The storage mechanism (1) is internally slidably connected to a sealing extraction mechanism (3), and the sealing extraction mechanism (3) is provided with an extraction groove (4) through it. The sealing extraction mechanism (3) is internally threadedly connected to a plasma extraction mechanism (5) for plasma storage, and the plasma extraction mechanism (5) is provided with a position locking mechanism (6) for locking the position of the plasma extraction mechanism (5).

2. The integrated platelet-rich plasma preparation kit with threaded locking centrifuge sleeve and blood collection tube as described in claim 1, characterized in that: The storage mechanism (1) includes a storage tube (7), a first extraction head (8) and a limiting groove (9). The bottom of the storage tube (7) is fixedly connected to the first extraction head (8), and limiting grooves (9) are opened on both sides of the inner wall of the storage tube (7).

3. The integrated platelet-rich plasma preparation kit combining a threaded locking centrifuge sleeve and a blood collection tube according to claim 2, characterized in that: The bottom sealing mechanism (2) includes a base plate (10), a sealing sleeve (11) and a chamfer (12). The top of the base plate (10) is fixedly connected to the sealing sleeve (11) which is sleeved on the outside of the first extraction head (8). The top of the inner wall of the sealing sleeve (11) is provided with an inclined chamfer (12).

4. The integrated platelet-rich plasma preparation kit with threaded locking centrifuge sleeve and blood collection tube as described in claim 3, characterized in that: The sealing extraction mechanism (3) includes a threaded connecting sleeve (13), a first rubber plug (14), and a limiting boss (15). The bottom of the threaded connecting sleeve (13) is fixedly connected to a first rubber plug (14) made of rubber material that fits against the inner wall of the storage tube (7). The outside of the first rubber plug (14) is fixedly connected to a limiting boss (15) made of rubber material. The outside of the limiting boss (15) fits against the inner wall of the limiting groove (9).

5. The integrated platelet-rich plasma preparation kit with threaded locking centrifuge sleeve and blood collection tube as described in claim 4, characterized in that: The plasma extraction mechanism (5) includes an extraction tube (16), a second extraction head (17), an external thread (18), a connecting frame (19), and a second rubber plug (20). The bottom of the extraction tube (16) is fixedly connected to the second extraction head (17). The outside of the extraction tube (16) is provided with an external thread (18) that is threadedly connected to the threaded connecting sleeve (13). The bottom of the connecting frame (19) is fixedly connected to the second rubber plug (20) that fits against the inner wall of the extraction tube (16). The top of the connecting frame (19) is fixedly connected to a top plate (21). The top of the outer wall of the extraction tube (16) is fixedly connected to a connecting plate (22).

6. The integrated platelet-rich plasma preparation kit with threaded locking centrifuge sleeve and blood collection tube according to claim 5, characterized in that: The position locking mechanism (6) includes a limiting seat (23), a baffle (24) and a knob (25). Two sets of limiting seats (23) are fixedly connected to the top of the connecting plate (22). A baffle (24) that is inserted into the limiting seat (23) is fixedly connected to the outer wall of the top plate (21). A knob (25) is fixedly connected to the top of the top plate (21). The top edge of the baffle (24) is set to be arc-shaped.

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