Anti-stabbing blood taking needle
By designing a blood collection needle that is not stabbed, and using the coordination of the connecting ring and protective cover, the problem of medical staff being stabbed by the needle during blood collection is solved, and safe protection is achieved during connection and movement.
Patent Information
- Application Number
- CN202422075286.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Medical staff are at risk of being stabbed by needles during blood collection and after use of blood collection needles, especially when connecting the blood collection needle to the blood collection vessel and moving to the discarded medical waste.
A blood collection needle that prevents stabbing from being stabbed is designed. Through the cooperation of the connecting ring and the protective cover, the needle is protected from being stabbed during connection and movement.
While ensuring blood collection operations, it effectively prevents medical staff from being stabbed by the needle when connecting the blood collection tube and moving the blood collection needle, improving operation safety.
Smart Images
Figure CN223143514U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical appliances, and particularly relates to a blood collection needle for preventing stabbing injuries. Background Technique
[0002] In daily work, medical staff often need to collect patients' blood for testing. During the blood collection process, a blood collection needle needs to be used to pierce the patient's skin until it reaches the blood vessel. The blood collection needle is generally for single use. Before the blood collection work, medical staff need to connect the blood collection needle to the blood collection tube. During the connection process, due to the sharp front end of the blood collection needle, it is easy to cause stabbing injuries to medical staff. Moreover, after use, when medical staff carry the blood collection needle to move to the medical waste disposal area, there is also a risk of stabbing injuries to medical staff. Content of the Utility Model
[0003] The utility model provides a blood collection needle for preventing stabbing injuries, which has the characteristics that when medical staff connect and install the blood collection needle and the blood collection tube, and when discarding the used blood collection needle, it can protect and isolate the tip of the needle to avoid stabbing injuries.
[0004] The utility model provides the following technical solutions: including a connection port, a blood transfusion chamber is fixedly connected to the bottom end of the connection port, a puncture needle is fixedly connected to the bottom end of the blood transfusion chamber, two horizontal guide grooves and a vertical guide groove are opened on the outer side of the blood transfusion chamber, both of the two horizontal guide grooves are communicated with the vertical guide groove, a limiting block is slidably connected inside the horizontal guide groove, a linkage ring is slid on the outer side of the blood transfusion chamber, a protective cover is arranged below the linkage ring, a positioning block is fixedly connected to the inner side of the linkage ring, and the positioning block slides inside the horizontal guide groove and the vertical guide groove.
[0005] Wherein, a relief groove is opened on the inner wall of the horizontal guide groove, and the limiting block slides inside the relief groove.
[0006] Wherein, a pointing block is fixedly connected to the top end of the linkage ring, and the position of the pointing block corresponds to that of the positioning block.
[0007] Wherein, a driving block is fixedly connected between the linkage ring and the protective cover.
[0008] Wherein, blood transfusion cavities are opened inside the connection port, the blood transfusion chamber and the puncture needle, and several of the blood transfusion cavities are communicated with each other.
[0009] The beneficial effects of the present utility model are as follows: Through the cooperation of components such as the linkage ring and the protective cover, while ensuring that medical staff can complete the work of puncturing and collecting blood from patients, it enables medical staff to protect the puncture needle when installing the blood collection tube and when moving to the medical waste disposal area, avoiding the situation of stabbing medical staff.
[0010] Parts not involved in this device are the same as or can be implemented using existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0012] Figure 2 is a disassembled structural schematic diagram of the present utility model;
[0013] Figure 3 is a cross-sectional structural schematic diagram of the present utility model;
[0014] Figure 4 is a three-dimensional structural schematic diagram of the linkage ring in the present utility model;
[0015] Figure 5 is Figure 3 an enlarged schematic diagram of part A in
[0016] In the figure: 1, connection port; 2, blood transfusion chamber; 21, puncture needle; 22, horizontal guide groove; 23, vertical guide groove; 24, limit block; 25, relief groove; 3, linkage ring; 31, protective cover; 32, positioning block; 33, pointing block; 34, driving block; 4, blood transfusion cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] Please refer to Figures 1 - 5 , the present utility model provides the following technical solutions: It includes a connection port 1, the bottom end of the connection port 1 is fixedly connected to a blood transfusion chamber 2, the bottom end of the blood transfusion chamber 2 is fixedly connected to a puncture needle 21, two horizontal guide grooves 22 and a vertical guide groove 23 are opened on the outer side of the blood transfusion chamber 2, both of the two horizontal guide grooves 22 are communicated with the vertical guide groove 23, a limit block 24 is slidably connected inside the horizontal guide groove 22, a linkage ring 3 is slid on the outer side of the blood transfusion chamber 2, a protective cover 31 is arranged below the linkage ring 3, a positioning block 32 is fixedly connected to the inner side of the linkage ring 3, and the positioning block 32 slides inside the horizontal guide groove 22 and the vertical guide groove 23.
[0018] In this implementation: The connection port 1 is used to support and connect various components, and the connection port 1 can be connected to a blood collection tube. Thus, through the cooperation of other components, the puncture blood collection operation on the patient can be completed. At the bottom end of the connection port 1, a blood transfusion chamber 2 is fixed. The blood transfusion chamber 2 is used to transport blood. At the bottom end of the blood transfusion chamber 2, a puncture needle 21 is fixed. Medical staff can puncture the patient's skin through the puncture needle 21, so that the tip of the puncture needle 21 penetrates into the patient's blood vessel. Then, through the negative pressure suction of components such as an infusion tube, the blood collection operation is completed. Two horizontal guide grooves 22 and a vertical guide groove 23 opened on the outer side of the blood transfusion chamber 2 are respectively used to guide the rotation and vertical sliding of the linkage ring 3, so that the linkage ring 3 can move on the outer side of the blood transfusion chamber 2. Limited blocks 24 are slidably arranged in both of the two horizontal guide grooves 22, and springs are installed between the two limited blocks 24 and the blood transfusion chamber 2, so that the limited blocks 24 can continuously stay in a proper position by the elastic release of the springs to complete the work of blocking the positioning block 32 fixed on the inner side of the linkage ring 3, so that the linkage ring 3 can continuously stay in a proper position. Thus, it is ensured that the protective cover 31 can continuously stay outside the puncture needle 21 to protect the outside of the puncture needle 21 and prevent medical staff from being stabbed by the puncture needle 21 during the process of connecting the connection port 1 to the blood collection tube. When the connection work is completed and blood collection is required, medical staff can rotate the linkage ring 3 on the outer side of the blood transfusion chamber 2. When the linkage ring 3 slides, it will drive the positioning block 32 to move synchronously. At this time, the positioning block 32 will contact the limited block 24. The surface of the limited block 24 contacting the positioning block 32 is an inclined surface, so that the limited block 24 will be driven to move in the vertical direction and move into the blood transfusion chamber 2. When medical staff move the positioning block 32 to a position corresponding to the vertical guide groove 23, the linkage ring 3 can be moved in the vertical direction. When the linkage ring 3 moves vertically, it will drive the protective cover 31 to move outside the blood transfusion chamber 2, so that the puncture needle 21 is exposed to the outside until the linkage ring 3 drives the positioning block 32 to move to a position corresponding to the upper horizontal guide groove 22. Then medical staff can rotate the linkage ring 3 in the horizontal direction, so that the positioning block 32 rotates into the horizontal guide groove 22 and contacts the limited block 24 sliding in the horizontal guide groove 22. At this time, the positioning block 32 will drive the limited block 24 to move vertically, so that the positioning block 32 can move to one side of the limited block 24. Then the limited block 24 will move to its original position by the elastic release of the spring, and then limit the positioning block 32, so that the protective cover 31 can continuously stay outside the blood transfusion chamber 2 and completely expose the puncture needle 21. Then medical staff can puncture the puncture needle 21 into the patient's skin. After the blood collection work is completed, after medical staff pull out the puncture needle 21 from the patient's body, they can rotate the linkage ring 3 on the outer side of the blood transfusion chamber 2 again, so that the linkage ring 3 drives the positioning block 32 to move to a position corresponding to the vertical guide groove 23,Then, through vertical movement, the positioning block 32 is driven to move to a position corresponding to the lower horizontal guiding groove 22. Then, the positioning block 32 is moved to one side of the limiting block 24, so that the positioning block 32 is blocked by the limiting block 24. At this time, the protective cover 31 will continuously be located outside the puncture needle 21, so that when medical staff transfer the whole device to the disposal position, they will not be stabbed by the puncture needle 21.,
[0019] A relief groove 25 is formed in the inner wall of the horizontal guiding groove 22, and the limiting block 24 slides inside the relief groove 25; the relief groove 25 formed inside the horizontal guiding groove 22 is used to guide and restrict the sliding of the limiting block 24, so that when the positioning block 32 contacts the limiting block 24, the limiting block 24 can be driven to move. And when the positioning block 32 slides to one side of the limiting block 24, the limiting block 24 can be pushed to move to its original position by the elastic release of the spring force, so as to block the positioning block 32, thereby preventing unnecessary displacement of components such as the linkage ring 3 and the protective cover 31 when not subjected to external forces.,
[0020] A pointing block 33 is fixedly connected to the top of the linkage ring 3, and the position of the pointing block 33 corresponds to that of the positioning block 32; the pointing block 33 fixedly connected to the top of the linkage ring 3 is used to assist medical staff in positioning the position of the positioning block 32. The position of the pointing block 33 corresponds to that of the positioning block 32, so that when medical staff rotate the linkage ring 3 outside the blood transfusion chamber 2 to adjust the positioning block 32 to a position corresponding to the vertical guiding groove 23, they can judge the position of the positioning block 32 by observing the position of the pointing block 33, so as to facilitate medical staff to complete the adjustment of the positions of the linkage ring 3 and the protective cover 31.,
[0021] A driving block 34 is fixedly connected between the linkage ring 3 and the protective cover 31; the driving block 34 fixedly connected between the linkage ring 3 and the protective cover 31 is used to connect the linkage ring 3 and the protective cover 31. Thus, when the staff adjusts the position of the linkage ring 3, the protective cover 31 can be driven to move synchronously, so that the protective cover 31 slides out from outside the puncture needle 21, or slides to the outside of the puncture needle 21, completing the protection and blocking of the puncture needle 21, or opening for work. While ensuring that the staff can complete the puncture work on the patient's skin, it can prevent the staff from being stabbed by the puncture needle 21 during the process of installing blood collection tubes and the like.,
[0022] Blood transfusion cavities 4 are formed inside the connection port 1, the blood transfusion chamber 2, and the puncture needle 21, and several blood transfusion cavities 4 are connected to each other; the blood transfusion cavities 4 formed inside the connection port 1, the blood transfusion chamber 2, and the puncture needle 21 are used for the flow of blood, so that after the tip of the puncture needle 21 is inserted into the patient's blood vessel by medical staff, components such as blood collection tubes can suck the patient's blood into the container through negative pressure, thereby completing the blood collection operation on the patient.,
[0023] Working principle and usage process of the present utility model: When blood collection operation is required for a patient, medical staff can connect the blood collection tube to connection port 1. During the connection process, the protective cover 31 will continuously be located outside the puncture needle 21, thereby protecting the medical staff and preventing them from being stabbed by the puncture needle 21. After the connection work is completed, medical staff can rotate the linkage ring 3 outside the blood transfusion chamber 2. When the linkage ring 3 slides, it will drive the positioning block 32 to move synchronously. At this time, the positioning block 32 will contact the limit block 24. One side of the limit block 24 that contacts the positioning block 32 is an inclined surface, causing the limit block 24 to be driven to move in the vertical direction and move into the blood transfusion chamber 2. When medical staff move the positioning block 32 to a position corresponding to the vertical guiding groove 23, they can move the linkage ring 3 in the vertical direction. When the linkage ring 3 moves vertically, it will drive the protective cover 31 to move outside the blood transfusion chamber 2, so that the puncture needle 21 is exposed to the outside world until the linkage ring 3 drives the positioning block 32 to move to a position corresponding to the upper horizontal guiding groove 22. Then medical staff can rotate the linkage ring 3 in the horizontal direction, causing the positioning block 32 to rotate into the horizontal guiding groove 22 and contact the limit block 24 sliding inside the horizontal guiding groove 22. At this time, the positioning block 32 will drive the limit block 24 to move vertically, enabling the positioning block 32 to move to one side of the limit block 24. Then the limit block 24 will release the acting force through the spring elasticity and move back to its original position, thereby limiting the positioning block 32 and enabling the protective cover 31 to continuously be located outside the blood transfusion chamber 2, completely exposing the puncture needle 21. Then medical staff can puncture the puncture needle 21 into the patient's skin. After the blood collection work is completed, after medical staff pull out the puncture needle 21 from the patient's body, they can rotate the linkage ring 3 outside the blood transfusion chamber 2 again, causing the linkage ring 3 to drive the positioning block 32 to move to a position corresponding to the vertical guiding groove 23, and then drive the positioning block 32 to move to a position corresponding to the lower horizontal guiding groove 22 through vertical movement, and then move the positioning block 32 to one side of the limit block 24, causing the positioning block 32 to be blocked by the limit block 24. At this time, the protective cover 31 will continuously be located outside the puncture needle 21, so that when medical staff transfer the entire device to the disposal position, they will not be stabbed by the puncture needle 21.
Claims
1. A blood collection needle for preventing stabbing, comprising a connection port (1), characterized in that: The bottom end of the connection port (1) is fixedly connected to a blood transfusion chamber (2). The bottom end of the blood transfusion chamber (2) is fixedly connected to a puncture needle (21). Two horizontal guide grooves (22) and a vertical guide groove (23) are formed on the outer side of the blood transfusion chamber (2). Both of the two horizontal guide grooves (22) communicate with the vertical guide groove (23). A limit block (24) is slidably connected inside the horizontal guide groove (22). A linkage ring (3) is slid on the outer side of the blood transfusion chamber (2). A protective cover (31) is arranged below the linkage ring (3). A positioning block (32) is fixedly connected to the inner side of the linkage ring (3). The positioning block (32) slides inside the horizontal guide groove (22) and the vertical guide groove (23).
2. The blood collection needle for preventing stabbing according to claim 1, wherein: A relief groove (25) is formed on the inner wall of the horizontal guide groove (22). The limit block (24) slides inside the relief groove (25).
3. The blood collection needle for preventing stabbing according to claim 1, characterized in that: A pointing block (33) is fixedly connected to the top end of the linkage ring (3). The position of the pointing block (33) corresponds to that of the positioning block (32).
4. The blood collection needle for preventing stabbing according to claim 1, wherein: A driving block (34) is fixedly connected between the linkage ring (3) and the protective cover (31).
5. The blood collection needle for preventing stabbing according to claim 1, wherein: Blood transfusion cavities (4) are formed inside the connection port (1), the blood transfusion chamber (2) and the puncture needle (21), and several of the blood transfusion cavities (4) communicate with each other.