Vein blood taking needle
By introducing a bifurcated tube and drainage rod structure into the venous blood collection needle, the problems of easy needle displacement and lack of drainage in the sample tube are solved, thus achieving safe blood collection and high-quality testing.
Patent Information
- Application Number
- CN202520248467.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing venous blood collection needles are prone to displacement, and sample tubes lack drainage structures, affecting blood collection efficiency and test results.
A venous blood collection needle was designed, including a slanted puncture needle, a support rod, a bifurcated tube, a baffle, a drainage rod, and a tapered tube, to ensure that the needle does not shift and to prevent blood from colliding with the sample tube wall through the drainage rod.
This effectively prevents the blood collection needle from piercing or slipping out of the blood vessel when children move around, reducing the risk of scratches, while also preventing hemolysis and ensuring the quality of the blood sample.
Smart Images
Figure CN223695880U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical apparatus and instruments, more specifically, it relates to a venous blood taking needle. BACKGROUND
[0002] The venous blood taking needle is a blood taking needle used for collecting blood samples in the medical examination process, the blood taking needle at the top end is used for puncturing blood vessels, the tail end transparent hose is connected with the tail needle, the tail needle is wrapped by the rubber hose outside, the outer needle cap is used for penetrating into the vacuum blood taking test tube, and blood is sucked into the tube by using the negative pressure in the test tube; the venous blood taking is used for assisting diagnosis, blood taking can be used for detecting multiple indexes such as creatinine, urea nitrogen and blood sugar, helping doctors to understand the physical condition of patients and diagnosing diseases, blood system examination, through the venous blood taking, serum enzymes and electrolytes can be measured, which is helpful for discovering blood system diseases such as anemia and leukemia, and routine physical examination, the venous blood taking is a routine item in physical examination, through blood routine examination, the overall health condition of the body can be known, but the metal hard blood taking needle of most existing venous blood taking needles is always placed in the blood vessel during the blood taking process, if the blood taking object is an uncontrollable child, the blood taking needle is easy to penetrate the blood vessel or slide out of the blood vessel, the blood taking is affected or the child is scratched, and most existing blood sample tubes do not have drainage structures, blood directly falls into the sample tube, collides with the inner wall of the sample tube, hemolysis phenomenon is easy to occur, and the test result is affected. CONTENT
[0003] In order to solve the above technical problems, the utility model provides a venous blood taking needle to solve the problems that the existing blood taking needle is easy to displace and the sample tube does not have a drainage structure.
[0004] The utility model discloses a venous blood taking needle, which is achieved by the following specific technical means:
[0005] A venous blood taking needle, comprising: a blood taking needle; an inclined puncture needle head is arranged at the outer end of the blood taking needle; a support rod is connected to the other end of the blood taking needle; two groups of force blocks are arranged on the support rod; a blood transfusion tube is arranged above the blood taking needle; a conical tube is arranged at the other end of the blood transfusion tube; the conical tube extends into the bottle opening of a sample tube; and a tube cover is arranged on the bottle opening of the sample tube.
[0006] Further, an outer wall of the blood taking needle is sleeved with a blood taking hose, a bifurcated tube is connected to the rear side of the blood taking hose, the blood taking needle extends into the blood taking hose through the lower pipeline of the bifurcated tube, an end cover is arranged on the rear side of the lower pipeline of the bifurcated tube, and the upper pipeline of the bifurcated tube is connected to the blood transfusion tube.
[0007] Further, a baffle is arranged in the lower pipeline of the bifurcated tube, the baffle is fixed to the inner wall of the lower pipeline of the bifurcated tube through a micro hinge, and the diameter of the front side pipeline of the baffle is greater than the diameter of the rear side pipeline of the baffle.
[0008] Furthermore, the conical tube has a structure that is narrow at the top and wide at the bottom, with a support ring on the lower side of the conical tube, and a locking groove on the inner wall of the sample tube mouth, with the support ring placed in the locking groove.
[0009] Furthermore, a vertical guide rod is provided in the middle of the sample tube, with the lower end of the guide rod fixed to the bottom of the sample tube and the upper end lower than the bottle opening.
[0010] Furthermore, a soft plug is provided at the middle position of the lower side of the tube cap, and a groove is provided at the middle position of the lower side of the soft plug. When the tube cap is fastened, the drainage rod is placed in the groove.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This utility model, by setting up a bifurcated tube and a rubber hose, allows the blood collection needle to pass through the lower part of the bifurcated tube into the blood collection hose during vascular puncture. After the puncture needle penetrates the blood vessel, the blood collection needle is removed, leaving only the blood collection hose in the blood vessel. This prevents uncontrolled children from accidentally piercing or slipping out of the blood vessel and injuring the child during blood collection due to their movements.
[0013] 2. By setting a baffle and a miniature hinge, when the blood collection needle is placed inside the blood collection tube, the baffle is in close contact with the inner wall of the lower part of the bifurcation tube. When the blood collection needle is withdrawn, the baffle is perpendicular to the lower part of the bifurcation tube, preventing blood from flowing out from the rear.
[0014] 3. This utility model, by setting a support ring, a locking groove and a drainage rod, with the support ring located in the locking groove, allows blood to be directly drained into the sample tube by the drainage rod. This not only prevents contact with viruses and fungi in the external air, but also prevents blood from colliding with the sample tube wall and causing hemolysis. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is an exploded structural diagram of the present invention.
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the bifurcated pipe of this utility model.
[0018] Figure 4 This utility model is made by Figure 3 A schematic diagram of the enlarged structure of part A.
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the sample tube of this utility model.
[0020] Figure 6 This utility model is made by Figure 5 A schematic diagram of the enlarged structure of section B.
[0021] Figure 7 is the bottom structure diagram of the pipe cover of the utility model.
[0022] In the figure, the corresponding relationship between the component name and the figure number is:
[0023] 1, blood taking needle; 101, puncture needle head;
[0024] 2, support rod; 201, force block;
[0025] 3, end cover;
[0026] 4, blood taking hose;
[0027] 5, bifurcated pipe;
[0028] 6, blood transfusion pipe;
[0029] 7, conical pipe; 701, support ring;
[0030] 8, bottle mouth; 801, clamping groove;
[0031] 9, sample tube;
[0032] 10, pipe cover; 1001, soft plug; 1002, groove;
[0033] 11, drainage rod;
[0034] 12, baffle; 1201, micro hinge. DETAILED DESCRIPTION
[0035] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0036] Example:
[0037] As shown in the accompanying Figure 1 to the accompanying Figure 7 :
[0038] The utility model provides a kind of venous blood taking needle, comprising: blood taking needle 1;Blood taking needle 1 outer end is equipped with the puncture needle head 101 of inclined surface, blood taking needle 1 another end is connected support rod 2, support rod 2 is equipped with two groups of force block 201, blood taking needle 1 upper is equipped with blood transfusion pipe 6, blood transfusion pipe 6 another end is equipped with conical pipe 7, conical pipe 7 is stretched into the inside of bottle mouth 8 of sample tube 9, sample tube 9 bottle mouth 8 is equipped with pipe cover 10.
[0039] Among them, as Figure 1 And Figure 2As shown, the outer wall of the blood collection needle 1 is fitted with a blood collection tube 4. The back of the blood collection tube 4 is connected to a bifurcated tube 5. The blood collection needle 1 extends into the blood collection tube 4 through the lower tube of the bifurcated tube 5. The lower tube of the bifurcated tube is equipped with an end cap 3. The upper tube of the bifurcated tube 5 is connected to a transfusion tube 6. When performing vascular puncture, the blood collection needle 1 is inserted into the blood collection tube 4 through the lower tube of the bifurcated tube 5. After the puncture needle 101 penetrates the blood vessel, the blood collection needle 1 is removed, leaving only the blood collection tube 4 in the blood vessel. This prevents uncontrolled children from accidentally piercing or slipping out of the blood vessel and injuring the child during blood collection.
[0040] Among them, such as Figure 3 and Figure 4 As shown, a baffle 12 is provided in the lower pipe of the bifurcation tube 5. The baffle 12 is fixed to the inner wall of the lower pipe of the bifurcation tube 5 by a miniature hinge 1201. The diameter of the pipe on the front side of the baffle 12 is larger than the diameter of the pipe on the rear side of the baffle 12. When the blood collection needle 1 is placed in the blood collection tubing 4, the baffle 12 is in close contact with the inner wall of the lower pipe of the bifurcation tube 5. When the blood collection needle 1 is withdrawn, the baffle 12 is perpendicular to the lower pipe of the bifurcation tube 5, preventing blood from flowing out from the rear.
[0041] Among them, such as Figure 5 and Figure 6 As shown, the conical tube 7 has a structure that is narrow at the top and wide at the bottom. A support ring 701 is provided on the lower side of the conical tube 7. A locking groove 801 is provided on the inner wall of the bottle mouth 8 of the sample tube 9. The support ring 701 is placed in the locking groove 801. A vertical drainage rod 11 is provided in the middle of the sample tube 9. The lower end of the drainage rod 11 is fixed to the bottom of the sample tube 9, and its upper end is lower than the bottle mouth 8. Blood is directly drained into the sample tube 9 through the drainage rod 11, which can prevent contact with viruses and fungi in the outside air and prevent blood from colliding with the tube wall of the sample tube 9 and causing hemolysis.
[0042] Among them, such as Figure 7 As shown, a soft plug 1001 is provided at the middle position of the lower side of the tube cap 10, and a groove 1002 is provided at the middle position of the lower side of the soft plug 1001. When the tube cap 10 is closed, the drainage rod 11 is placed in the groove 1002 to seal the sample tube 9 and prevent impurities from falling in and affecting the test results.
[0043] The specific usage and function of this embodiment are as follows:
[0044] In the sterile packaging state, the blood taking needle 1 is arranged outside the blood taking hose 4, the end cover 3 is covered on the rear end of the lower pipeline of the bifurcated pipe 5, and the sample tube 9 is buckled with the pipe cover 10, when blood taking is carried out, the force block 201 is held by hand to make the blood taking needle 1 pass into the blood taking hose 4 from the lower pipeline of the bifurcated pipe 5, after the puncture needle 101 penetrates the blood vessel, the blood taking needle 1 is taken out, only the blood taking hose 4 is left in the blood vessel, the blood flows to the conical pipe 7 along the blood delivery pipe 6, the pipe cover 10 is pulled off, the supporting ring 701 of the lower end of the conical pipe 7 is inserted into the clamping groove 801, the blood is drained into the sample tube 9 by the drainage rod 11, after blood taking is completed, the blood taking hose 4 is taken out, the conical pipe 7 is pulled out, and the pipe cover 10 is buckled.
[0045] The unexplained part of the utility model is the known technology of the person skilled in the art.
Claims
1. A venous blood collection needle, comprising: Blood collection needle (1); characterized in that: the outer end of the blood collection needle (1) is provided with a puncture needle tip (101) with an inclined surface, the other end of the blood collection needle (1) is connected to a support rod (2), the support rod (2) is provided with two sets of force blocks (201), a transfusion tube (6) is provided above the blood collection needle (1), the other end of the transfusion tube (6) is provided with a conical tube (7), the conical tube (7) extends into the bottle mouth (8) of the sample tube (9), and the bottle mouth (8) of the sample tube (9) is equipped with a tube cap (10).
2. The venous blood collection needle as described in claim 1, characterized in that: The outer wall of the blood collection needle (1) is fitted with a blood collection tube (4), and the back of the blood collection tube (4) is connected to a bifurcation tube (5). The blood collection needle (1) extends into the blood collection tube (4) through the lower pipe of the bifurcation tube (5). The lower pipe of the bifurcation tube is equipped with an end cap (3) on the rear side, and the upper pipe of the bifurcation tube (5) is connected to the transfusion tube (6).
3. A venous blood collection needle as described in claim 2, characterized in that: A baffle plate (12) is provided in the lower pipe of the bifurcation pipe (5). The baffle plate (12) is fixed to the inner wall of the lower pipe of the bifurcation pipe (5) by a miniature hinge (1201). The diameter of the pipe in front of the baffle plate (12) is larger than the diameter of the pipe behind the baffle plate (12).
4. A venous blood collection needle as described in claim 1, characterized in that: The conical tube (7) has a narrow top and wide bottom structure. A support ring (701) is provided on the lower side of the conical tube (7). A locking groove (801) is provided on the inner wall of the bottle mouth (8) of the sample tube (9). The support ring (701) is placed in the locking groove (801).
5. A venous blood collection needle as described in claim 1, characterized in that: A vertical guide rod (11) is provided in the middle of the sample tube (9). The lower end of the guide rod (11) is fixed to the bottom of the sample tube (9), and its upper end is lower than the bottle mouth (8).
6. A venous blood collection needle as described in claim 1, characterized in that: The tube cap (10) below A soft plug (1001) is provided at the middle position of the side, and a groove (1002) is provided at the middle position of the lower side of the soft plug (1001). With the tube cap (10) on, the drainage rod (11) is placed in the groove (1002).