Sterile anti-pollution blood transfusion apparatus

Abstract

The utility model discloses a sterile anti-pollution blood transfusion apparatus, which belongs to the technical field of blood transfusion apparatuses and comprises a blood transfusion apparatus main body, the blood transfusion apparatus main body comprises an upper blood transfusion tube, the top end of the upper blood transfusion tube is communicated and provided with an upper needle head seat, and the outer surface of the upper blood transfusion tube is movably provided with a flow stopping clip. An upper blood bag needle head is installed on the inner wall of the upper needle head base in a sliding mode, a dropper is arranged at the bottom end of the upper blood transfusion tube and comprises an upper tube body and a lower tube body, and the upper tube body and the lower tube body are used in a threaded fit mode; the upper protective cover and the lower protective cover are arranged to isolate and protect the upper blood bag needle head and the lower blood transfusion needle head, external pollution is avoided, accidental puncturing can be avoided, meanwhile, the length of the upper blood bag needle head extending out of the upper needle head base can be adjusted in a sliding mode, and the position is locked through the positioning pin; the blood bag plug can be adaptively adjusted and used according to the thicknesses of blood bag plugs of different specifications, popularization and practicability are improved, and the blood bag plug is not limited to nurses with too hard professional skills.

Description

Technical Field

[0001] The utility model belongs to the technical field of blood transfusion apparatuses, and in particular relates to a sterile anti-pollution blood transfusion apparatus. Background Art

[0002] A blood transfusion set is an infusion device that establishes a pathway between blood and veins. It consists of a bottle insertion needle, an air inlet needle or air inlet hole, a needle cap, a Y-type three-way pipeline, a dropper, a pipeline, a flow regulator for the drug addition port, an injection piece, and an intravenous needle or injection needle above No. 7.

[0003] However, the existing blood transfusion device has a fixed position of the blood bag needle when in use, and the thickness of blood bag plugs of different specifications is different. Therefore, some blood bag needles will be partially exposed after being inserted into the blood bag plug. Therefore, the blood bag may be punctured easily if one is not careful. This requires professional and skilled nurses to operate, and the popularity of use is low. In addition, the dropper is an integrated design, and the internal blood filter is not convenient for timely replacement, which has certain limitations in use. Utility Model Content

[0004] The utility model aims to provide a sterile anti-contamination blood transfusion device to solve the problem that the existing blood transfusion device proposed in the above background technology has a fixed blood bag needle position when in use, and blood bag plugs of different specifications have different thicknesses, so some blood bag needles will be partially exposed after being inserted into the blood bag plug, so it is easy to puncture the blood bag if you are not careful, which requires professional and skilled nurses to operate, is less popular, and has an integrated design for the dropper, and the internal blood filter is not convenient for timely replacement operation, and has certain limitations in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aseptic anti-contamination blood transfusion device, comprising a blood transfusion device main body, the blood transfusion device main body comprising an upper blood transfusion tube, the top end of the upper blood transfusion tube is connected and installed with an upper needle seat, the outer surface of the upper blood transfusion tube is movably provided with a flow stop clamp, the inner wall of the upper needle seat is slidably installed with an upper blood bag needle, the bottom end of the upper blood transfusion tube is provided with a dropper, the dropper comprises an upper tube body and a lower tube body, the upper tube body and the lower tube body are used in conjunction with each other through threads, the upper tube body is connected with the bottom end of the upper blood transfusion tube, the lower surface of the lower tube body is penetrated and connected with the lower blood transfusion tube, the bottom end of the lower blood transfusion tube is connected and installed with a lower needle seat, the lower surface of the lower needle seat is fixedly installed with a lower blood transfusion needle, and a blood filter is movably provided in the lower tube body.

[0006] By adopting the above scheme, the upper blood bag needle and the lower blood transfusion needle are isolated and protected respectively by setting the upper shield and the lower shield, so as to avoid external contamination and accidental puncture. At the same time, the upper blood bag needle can be slid to adjust the length of the upper needle seat, and the position can be locked by the positioning pin. It can be adaptively adjusted according to the thickness of blood bag plugs of different specifications, so as to improve the popularity and practicality, and is not limited to the use of nurses with strong professional skills. The upper tube body and the lower tube body are arranged to form a dropper, and the blood filter is pressed by the lower support ring and the upper support ring, and is limited by the limit plug, so as to facilitate the subsequent timely replacement of the blood filter, and the operation structure is simple.

[0007] As a preferred embodiment, the upper surface of the upper needle seat and the lower surface of the lower needle seat are both provided with slots, and the upper shield and the lower shield are respectively inserted into the two slots, and the upper shield and the lower shield are respectively covered on the outside of the upper blood bag needle and the lower blood transfusion needle.

[0008] By adopting the above scheme, the slot is used in conjunction with the upper shield and the lower shield. The upper shield isolates and protects the upper blood bag needle, and the lower shield isolates and protects the lower blood transfusion needle, which can play a good protective effect and avoid accidental punctures.

[0009] As a preferred embodiment, a positioning pin is inserted into the upper needle seat, and a plurality of positioning grooves are provided on the outer surface of the upper blood bag needle. The positioning pin and the positioning groove are used in combination. An embedded groove is provided on the outer surface of the bottom end of the upper blood bag needle, and a sealing ring is embedded in the embedded groove, and the sealing ring fits against the inner wall of the upper needle seat.

[0010] By adopting the above scheme, the positioning pin is used in conjunction with the positioning groove, and the upper blood bag needle can slide up and down to adjust the length extending from the upper needle seat, and the positioning pin is used to lock the position, which is convenient for operation and adjustment, improves popularization and applicability, and the sealing ring can ensure good sealing properties.

[0011] As a preferred embodiment, anti-slip sleeves are adhered to the outer surface of the lower tube body and the outer surface of the upper tube body.

[0012] By adopting the above solution, the provision of the anti-slip sleeve facilitates the operation of rotating the upper tube body and the lower tube body.

[0013] As a preferred embodiment, a lower support ring is fixedly installed on the inner wall of the lower tube body, a fixing ring is fixedly installed on the inner wall of the upper tube body, a plurality of connecting plates are fixedly installed on the lower surface of the fixing ring, an upper support ring is fixedly installed on the bottom end of the connecting plate, and the blood filter is fittedly arranged on the upper surface of the lower support ring and the lower surface of the upper support ring.

[0014] By adopting the above solution, the lower support ring and the upper support ring are used together to compress the blood filter, thereby preventing the blood filter from shaking due to blood dripping.

[0015] As a preferred embodiment, a plurality of limiting plugs are fixed on the upper surface of the lower support ring, and a plurality of limiting slots for inserting the limiting plugs are provided on the lower surface of the blood filter.

[0016] By adopting the above solution, the limiting plug block is inserted into the limiting slot, so as to limit the blood filter and prevent the blood filter from horizontally moving and rotating.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The sterile anti-contamination blood transfusion device is provided with an upper shield and a lower shield to isolate and protect the upper blood bag needle and the lower blood transfusion needle respectively, thereby preventing external contamination and accidental puncture. At the same time, the upper blood bag needle can be slid to adjust the length of the upper needle seat and locked in position by a positioning pin. It can be adaptively adjusted according to the thickness of the blood bag plug of different specifications, thereby improving the popularity and practicability, and is not limited to nurses with strong professional skills.

[0019] The aseptic anti-contamination blood transfusion device is provided with an upper tube body and a lower tube body to form a dropper. The blood filter is compressed by the lower support ring and the upper support ring and is limited by the limit plug block, which facilitates the subsequent timely replacement of the blood filter and has a simple operation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model with the upper and lower shields removed;

[0022] Figure 3 It is a structural schematic diagram of the cross section of the upper needle seat of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the dropper section of the utility model;

[0024] Figure 5 It is an exploded schematic diagram of the lower support ring, the blood filter and the upper support ring of the utility model.

[0025] In the figure: 1. blood transfusion device body; 2. upper blood transfusion tube; 3. upper needle seat; 4. stop clamp; 5. upper blood bag needle; 6. dropper; 7. upper tube body; 8. lower tube body; 9. lower blood transfusion tube; 10. lower needle seat; 11. lower blood transfusion needle; 12. blood filter; 13. upper protective cover; 14. lower protective cover; 15. positioning pin; 16. sealing ring; 17. anti-slip sleeve; 18. lower support ring; 19. limit plug; 20. fixing ring; 21. connecting plate; 22. upper support ring. DETAILED DESCRIPTION

[0026] See also Figure 1-5 The utility model provides an aseptic anti-contamination blood transfusion device, comprising a blood transfusion device body 1, the blood transfusion device body 1 comprises an upper blood transfusion tube 2, the top end of the upper blood transfusion tube 2 is connected and installed with an upper needle seat 3, the outer surface of the upper blood transfusion tube 2 is movably provided with a flow stop clamp 4, an upper blood bag needle 5 is slidably installed on the inner wall of the upper needle seat 3, the bottom end of the upper blood transfusion tube 2 is provided with a dropper 6, the dropper 6 comprises an upper tube body 7 and a lower tube body 8, the upper tube body 7 and the lower tube body 8 are used in threaded cooperation, the upper tube body 7 is connected with the bottom end of the upper blood transfusion tube 2, the lower surface of the lower tube body 8 is penetrated and connected with a lower blood transfusion tube 9, the bottom end of the lower blood transfusion tube 9 is connected and installed with a lower needle seat 10, a lower blood transfusion needle 11 is fixedly installed on the lower surface of the lower needle seat 10, and a blood filter 12 is movably provided in the lower tube body 8.

[0027] The upper surface of the upper needle seat 3 and the lower surface of the lower needle seat 10 are both provided with slots, and the upper shield 13 and the lower shield 14 are respectively inserted into the two slots, the upper shield 13 and the lower shield 14 are respectively covered on the outside of the upper blood bag needle 5 and the lower blood transfusion needle 11, the slots are used in conjunction with the upper shield 13 and the lower shield 14, the upper shield 13 isolates and protects the upper blood bag needle 5, and the lower shield 14 isolates and protects the lower blood transfusion needle 11, which can play a good protective effect and avoid accidental punctures.

[0028] A positioning pin 15 is inserted into the upper needle seat 3, and a plurality of positioning grooves are provided on the outer surface of the upper blood bag needle 5. The positioning pin 15 and the positioning groove are used in conjunction with each other. An embedded groove is provided on the outer surface of the bottom end of the upper blood bag needle 5, and a sealing ring 16 is embedded in the embedded groove. The sealing ring 16 fits with the inner wall of the upper needle seat 3. By using the positioning pin 15 in conjunction with the positioning groove, the upper blood bag needle 5 can slide up and down to adjust the length extending out of the upper needle seat 3, and the positioning pin 15 is used to lock the position, which is convenient for operation and adjustment, and improves popularization and applicability. The sealing ring 16 can ensure good sealing properties.

[0029] The outer surface of the lower tube body 8 and the outer surface of the upper tube body 7 are both pasted with anti-skid sleeves 17 . The provision of the anti-skid sleeves 17 facilitates the operation and rotation of the upper tube body 7 and the lower tube body 8 .

[0030] A lower support ring 18 is fixedly installed on the inner wall of the lower tube body 8, a fixing ring 20 is fixedly installed on the inner wall of the upper tube body 7, a plurality of connecting plates 21 are fixedly installed on the lower surface of the fixing ring 20, an upper support ring 22 is fixedly installed on the bottom end of the connecting plate 21, and the blood filter 12 is arranged in close contact with the upper surface of the lower support ring 18 and the lower surface of the upper support ring 22. The lower support ring 18 and the upper support ring 22 are used in combination to press the blood filter 12 to prevent the blood filter 12 from shaking due to blood dripping.

[0031] A plurality of limit blocks 19 are fixed on the upper surface of the lower support ring 18, and a plurality of limit slots for inserting the limit blocks 19 are provided on the lower surface of the blood filter 12. The limit blocks 19 are inserted into the limit slots to limit the blood filter 12 and prevent the blood filter 12 from horizontal movement and rotation.

[0032] When in use, the upper shield 13 and the lower shield 14 are pulled out to expose the upper blood bag needle 5 and the lower blood transfusion needle 11. The extension length of the upper blood bag needle 5 is adjusted according to the thickness of the blood bag plug. When adjusting, the positioning pin 15 is pulled out to support the upper blood bag needle 5 to slide. After sliding to a suitable position, the positioning pin 15 is inserted to lock the position. After the adjustment is completed, the upper blood bag needle 5 is inserted into the blood bag, and the lower blood transfusion needle 11 is inserted into the patient's blood vessel for blood transfusion. During the blood transfusion process, the blood filter 12 filters the blood. During the blood transfusion, when the blood filter 12 needs to be replaced, the blood transfusion is suspended by operating the stop clamp 4, and the upper tube body 7 and the lower tube body 8 are rotated to separate the upper tube body 7 and the lower tube body 8. At this time, the upper support ring 22 is separated from the blood filter 12, and the blood filter 12 is taken out by tools such as tweezers and a new blood filter 12 is inserted. The blood filter 12 is realized by using the limiting plug 19 in conjunction with the limiting slot, and the upper tube body 7 and the lower tube body 8 are rotated and assembled again, and then the stop clamp 4 is opened to continue the blood transfusion.

Claims

1. A sterile anti-contamination blood transfusion device, characterized in that: The blood transfusion device comprises a main body (1), the main body (1) comprising an upper blood transfusion tube (2), the top end of the upper blood transfusion tube (2) being connected and mounted with an upper needle seat (3), the outer surface of the upper blood transfusion tube (2) being movably mounted with a flow stop clamp (4), the inner wall of the upper needle seat (3) being slidably mounted with an upper blood bag needle (5), the bottom end of the upper blood transfusion tube (2) being mounted with a dropper (6), the dropper (6) comprising an upper tube body (7) and a lower tube body ( 8), the upper tube body (7) and the lower tube body (8) are threadedly used together, the upper tube body (7) is connected to the bottom end of the upper blood transfusion blood vessel (2), the lower surface of the lower tube body (8) is penetrated and connected with a lower blood transfusion blood vessel (9), the bottom end of the lower blood transfusion blood vessel (9) is connected and installed with a lower needle seat (10), the lower surface of the lower needle seat (10) is fixedly installed with a lower blood transfusion needle (11), and a blood filter (12) is movably arranged in the lower tube body (8).

2. The sterile anti-contamination blood transfusion set according to claim 1, characterized in that: The upper surface of the upper needle seat (3) and the lower surface of the lower needle seat (10) are both provided with slots, and an upper shield (13) and a lower shield (14) are respectively inserted into the two slots. The upper shield (13) and the lower shield (14) are respectively provided to cover the outside of the upper blood bag needle (5) and the lower blood transfusion needle (11).

3. The sterile anti-contamination blood transfusion device according to claim 1, characterized in that: A positioning pin (15) is inserted into the upper needle seat (3), and a plurality of positioning grooves are provided on the outer surface of the upper blood bag needle (5). The positioning pin (15) and the positioning groove are used in conjunction with each other. An embedded groove is provided on the outer surface of the bottom end of the upper blood bag needle (5), and a sealing ring (16) is embedded in the embedded groove. The sealing ring (16) fits with the inner wall of the upper needle seat (3).

4. The sterile anti-contamination blood transfusion set according to claim 1, characterized in that: The outer surface of the lower tube body (8) and the outer surface of the upper tube body (7) are both adhered with anti-slip sleeves (17).

5. The sterile anti-contamination blood transfusion set according to claim 1, characterized in that: A lower support ring (18) is fixedly mounted on the inner wall of the lower tube body (8), a fixing ring (20) is fixedly mounted on the inner wall of the upper tube body (7), a plurality of connecting plates (21) are fixedly mounted on the lower surface of the fixing ring (20), an upper support ring (22) is fixedly mounted on the bottom end of the connecting plate (21), and the blood filter (12) is arranged in close contact with the upper surface of the lower support ring (18) and the lower surface of the upper support ring (22).

6. The sterile anti-contamination blood transfusion set according to claim 5, characterized in that: A plurality of limiting inserts (19) are fixed on the upper surface of the lower support ring (18), and a plurality of limiting slots for inserting the limiting inserts (19) are provided on the lower surface of the blood filter (12).

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