A new blood collector

Abstract

The utility model relates to medical instrument technical field provides a novel blood collector, including needle -holding tube, blood taking needle, blood taking tube and connecting pipe, the inside hollow structure of needle -holding tube is presented, the other end of needle -holding tube is equipped with round plug, the one end fixedly connected with push -and -pull rod of round plug is close to needle -holding tube, the inside of push -and -pull rod is equipped with needle -holding tube and needle -holding tube sliding connection, the one end fixedly connected with push -and -pull rod of blood taking needle is close to needle -holding tube. The utility model provides a novel blood collector, through design the blood taking tube of soft hardness carries out the collection to blood, will not thrust and break blood vessel wall, and is safer, has improved the accuracy and success rate of blood taking, the design of needle -holding tube can retract blood taking needle, effectively avoided needle exposure and blood splashing, reduced the risk of cross infection and secondary injury, set up valve on connecting pipe, can better control blood flow rate and the start and stop of blood taking process, improve blood taking efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a novel blood collection device. Background Technology

[0002] Blood collection devices are commonly used instruments in the medical field to collect blood samples from patients for laboratory analysis. However, existing blood collection devices have the following problems: the puncture depth of the needle is difficult to control, which may increase patient pain or lead to failed blood collection, and it is easy to puncture blood vessels; blood splashing is likely to occur during the blood collection process, posing a risk of cross-infection; the operation procedure is relatively complex, requiring medical staff to perform multiple operations to complete the blood collection; improper handling of the needle after blood collection may cause secondary injury. Therefore, designing a new blood collection device that is easy to operate, safe, and hygienic is of great significance. Summary of the Invention

[0003] The purpose of this invention is to provide a new type of blood collection device that, through structural improvements, solves the aforementioned problems of traditional blood collection devices and achieves safe, efficient, and comfortable blood collection operations.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a novel blood collection device, including a needle holding tube, a blood collection needle, a blood collection tube, and a connecting tube. One end of the needle holding tube is fixedly connected to the blood collection tube through the connecting tube. The blood collection tube and the connecting tube are sleeved together. The blood collection tube can accommodate the blood collection needle, and the diameter of the blood collection tube is larger than that of the blood collection needle.

[0006] The needle holder has a hollow internal structure, and a round plug is provided at the other end of the needle holder. A push-pull rod is fixedly connected to the end of the round plug near the needle holder. The push-pull rod is located inside the needle holder and is slidably connected to the needle holder. The end of the blood collection needle near the needle holder is fixedly connected to the push-pull rod.

[0007] Furthermore, the needle holder tube has a sliding groove inside, and a movable block is welded around the outer wall of the push-pull rod. The movable block is placed in the sliding groove and slidably connected to the sliding groove.

[0008] Furthermore, the blood collection tube is less rigid than the blood collection needle.

[0009] Furthermore, the length of the needle holder is greater than the length of the blood collection needle.

[0010] Furthermore, the end of the connecting tube furthest from the blood collection tube is sleeved and connected to the needle holding tube.

[0011] Furthermore, a valve is provided on the connecting pipe.

[0012] Furthermore, one end of the outer opening of the connecting tube is connected to the blood collection needle, and the tip of the blood collection needle is connected to the vacuum blood collection tube.

[0013] Beneficial effects:

[0014] As can be seen from the above technical solution, compared with the prior art, the novel blood collection device provided by this utility model collects blood by designing a blood collection tube with relatively soft hardness, which will not puncture the blood vessel wall and is safer, improving the accuracy and success rate of blood collection. The needle holding tube design can retract the blood collection needle, effectively avoiding needle exposure and blood splashing, reducing the risk of cross-infection and secondary injury. The valve set on the connecting tube can better control the blood flow rate and the start and stop of the blood collection process, improving blood collection efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 The attached figure is a schematic diagram of the overall structure of the novel blood collection device of this utility model;

[0017] Figure 2 The attached figure is a schematic diagram showing the components of the novel blood collection device of this utility model.

[0018] In the diagram: 1. Needle holder, 2. Blood collection needle, 3. Blood collection tube, 4. Connecting tube, 5. Blood collection needle, 6. Vacuum blood collection tube, 7. Round plug, 8. Push-pull rod, 9. Moving block. Detailed Implementation

[0019] 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.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Example 1

[0024] This utility model provides a novel blood collection device, including a needle holder 1, a blood collection needle 2, a blood collection tube 3, and a connecting tube 4.

[0025] The needle holder 1 has a hollow internal structure. One end of the needle holder 1 is connected to the connecting tube 4. The needle holder 1 is fixedly connected to the blood collection tube 3 through the connecting tube 4. The blood collection tube 3 is connected to the connecting tube 4.

[0026] The blood collection tube 3 can accommodate the blood collection needle 2. The diameter of the blood collection tube 3 is larger than that of the blood collection needle 2, and the hardness of the blood collection tube 3 is less than that of the blood collection needle 2. The blood collection needle 2 and the blood collection tube 3 can be inserted into the blood vessel together.

[0027] The other end of the needle holder tube 1 is provided with a round plug 7, which is in contact with the needle holder tube 1. A push-pull rod 8 is fixedly connected to the end of the round plug 7 near the needle holder tube 1. The push-pull rod 8 is located inside the needle holder tube 1. The inside of the needle holder tube 1 is provided with a sliding groove. A moving block 9 is welded around the outer wall of the push-pull rod 8. The moving block 9 is placed in the sliding groove. The push-pull rod 8 is slidably connected to the needle holder tube 1 through the moving block 9. The push-pull rod 8 can be slidably moved by pushing and pulling the round plug 7 by hand.

[0028] The end of the blood collection needle 2 near the needle holder tube 1 is fixedly connected to the push-pull rod 8. The length of the needle holder tube 1 is greater than the length of the blood collection needle 2. The push-pull rod 8 can drive the blood collection needle 2 to slide, so that the blood collection needle 2 is placed inside the needle holder tube 1.

[0029] The connecting pipe 4 is a three-way pipe with a valve 41. One end of the outer opening of the connecting pipe 4 is connected to the blood collection needle 5. The blood collection needle 5 has a hollow structure inside and is open at both ends. The tip of the blood collection needle 5 can be inserted into the vacuum blood collection tube 6 to form negative pressure.

[0030] Instructions for use: Open valve 41 on connecting tube 4, insert blood collection needle 2 and blood collection tube 3 into the vein together, pull the round plug 7 by hand to make the push-pull rod 8 move blood collection needle 2 towards needle holding tube 1, keeping only blood collection tube 3 inside the vein. Blood collection tube 3 is made of soft material and will not puncture the vein wall. The needle tip of blood collection needle 2 can be retracted into needle holding tube 1. Then insert the tip of blood collection needle 5 into vacuum blood vessel 6 to form negative pressure. Blood can then flow through blood collection tube 3, connecting tube 4 and blood collection needle 5 into vacuum blood vessel 6 to complete blood collection.

[0031] This utility model provides a novel blood collection device, including a needle holder, a blood collection needle, a blood collection tube, and a connecting tube. One end of the needle holder is fixedly connected to the blood collection tube via the connecting tube. The blood collection tube and the connecting tube are sleeved together. The blood collection tube can accommodate the blood collection needle, and its diameter is larger than that of the needle. The needle holder has a hollow internal structure, and the other end of the needle holder has a round plug. A push-pull rod is fixedly connected to the end of the round plug near the needle holder. The push-pull rod is located inside the needle holder and slidably connected to it. The end of the blood collection needle near the needle holder is fixedly connected to the push-pull rod. This novel blood collection device, by using a blood collection tube with relatively soft rigidity, collects blood without puncturing the blood vessel wall, making it safer and improving the accuracy and success rate of blood collection. The needle holder design allows the blood collection needle to be retracted, effectively avoiding needle exposure and blood splashing, reducing the risk of cross-infection and secondary injury. A valve is installed on the connecting tube to better control the blood flow rate and the start and stop of the blood collection process, improving blood collection efficiency.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel blood collection device, characterized in that, It includes a needle holder (1), a blood collection needle (2), a blood collection tube (3), and a connecting tube (4). One end of the needle holder (1) is fixedly connected to the blood collection tube (3) through the connecting tube (4). The blood collection tube (3) and the connecting tube (4) are sleeved together. The blood collection tube (3) can accommodate the blood collection needle (2). The diameter of the blood collection tube (3) is larger than that of the blood collection needle (2). The needle holder (1) has a hollow structure inside. The other end of the needle holder (1) is provided with a round plug (7). The end of the round plug (7) near the needle holder (1) is fixedly connected to a push-pull rod (8). The push-pull rod (8) is located inside the needle holder (1) and is slidably connected to the needle holder (1). The end of the blood collection needle (2) near the needle holder (1) is fixedly connected to the push-pull rod (8).

2. The novel blood collection device according to claim 1, characterized in that, The needle holder (1) has a sliding groove inside, and a moving block (9) is welded around the outer wall of the push-pull rod (8). The moving block (9) is placed in the sliding groove and is slidably connected to the sliding groove.

3. The novel blood collection device according to claim 1, characterized in that, The hardness of the blood collection tube (3) is less than that of the blood collection needle (2).

4. A novel blood collection device according to claim 1, characterized in that, The length of the needle holder (1) is greater than the length of the blood collection needle (2).

5. A novel blood collection device according to claim 1, characterized in that, The end of the connecting tube (4) away from the blood collection tube (3) is sleeved and connected to the needle holding tube (1).

6. A novel blood collection device according to claim 1, characterized in that, A valve (41) is provided on the connecting pipe (4).

7. A novel blood collection device according to claim 1, characterized in that, One end of the outer opening of the connecting tube (4) is connected to the blood collection needle (5), and the tip of the blood collection needle (5) is connected to the vacuum blood collection tube (6).

Images