Anti-falling vein blood taking needle

Abstract

The utility model relates to the technical field of vein blood collection, in particular to an anti-falling vein blood collection needle which comprises a needle seat, a needle head is arranged on one side of the needle seat, a protective sleeve is sleeved on the outer side of the needle head, and a needle handle is fixedly connected with one side, close to the needle head, of the bottom end of the needle seat. The side, away from the needle head, of the needle base is fixedly connected with a connecting branch disc, the upper end and the lower end of the side, away from the needle base, of the connecting branch disc are symmetrically and fixedly connected with anti-disengaging clamping blocks, limiting clamping grooves are formed in the anti-disengaging clamping blocks, and a connecting sleeve is arranged on the side, away from the needle base, of the connecting branch disc. And anti-falling clamping grooves are symmetrically formed in the upper end and the lower end of the side, close to the connecting branch disc, of the connecting sleeve, and anti-falling assemblies are arranged in the anti-falling clamping grooves. According to the utility model, the connection strength among all the parts is ideal, so that the overall structural stability is good, and therefore, the parts are not easy to fall off due to pulling during use, and normal blood sampling is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of venous blood collection, in particular to an anti-falling venous blood collection needle. Background Art

[0002] Phlebotomy is a medical procedure that involves extracting a blood sample from a person's vein for the purpose of performing various medical tests, diagnoses, or treatments. During this procedure, a healthcare professional will use a disposable needle and tube to draw a small amount of blood from a vein in the patient's arm. The blood sample is then sent to a laboratory for analysis or used directly for treatment purposes under the supervision of a healthcare provider. Phlebotomy is typically performed in a medical or clinical setting, such as a hospital, clinic, or diagnostic laboratory.

[0003] The venous blood collection needle is an important part of the venous blood collection process. However, the traditional venous blood collection needle still has some shortcomings. For example, the connection strength between its components is not ideal, which makes the overall structural stability poor. Therefore, when using it, it is easy to cause the components to fall off due to pulling, thereby affecting its normal blood collection. Therefore, an anti-falling venous blood collection needle is proposed to address the above problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an anti-falling venous blood collection needle, the connection strength between its components is relatively ideal, so that the overall structural stability is better, so that the components are not easily fallen off due to pulling during use, thereby ensuring its normal blood collection, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A kind of anti-falling venous blood collection needle comprises a needle seat, a needle is provided on one side of the needle seat, a protective sleeve is provided on the outer side of the needle, a needle handle is fixedly connected to the side of the bottom end of the needle seat close to the needle, a connecting support disk is fixedly connected to the side of the needle seat away from the needle, the upper and lower ends of the connecting support disk away from the needle seat are symmetrically and fixedly connected with anti-falling blocks, a limiting slot is provided on the anti-falling block, a connecting sleeve is provided on the side of the connecting support disk away from the needle seat, anti-falling slots are symmetrically provided at the upper and lower ends of the connecting sleeve close to the connecting branch disk, and an anti-falling component is provided in the anti-falling slot, and a blood sampling hose is connected to the side of the connecting sleeve away from the connecting branch disk.

[0007] Preferably, a threaded connection groove is provided at one end of the needle seat close to the needle head and an internal thread is provided on the inner wall of the threaded connection groove, and a threaded connection block is fixedly connected to one end of the needle head close to the needle seat and an external thread matching the internal thread specification is provided on the outer surface of the threaded connection block.

[0008] Preferably, the needle seat, the connecting branch disc and the connecting sleeve are all arranged with internal hollow structures and the needle seat, the connecting branch disc and the connecting sleeve are interconnected.

[0009] Preferably, the anti-detachment assembly includes a through slot passing through the connecting sleeve and the anti-detachment slot and a movable pull plate arranged on the outside of the connecting sleeve, the outer side of the movable pull plate is fixedly connected with a movable pull ring and the inner side of the movable pull plate is fixedly connected with a limiting support rod extending into the through slot.

[0010] Preferably, one end of the limit support rod is fixedly connected to the movable pull ring, and the other end is fixedly connected to a limit block matching the specifications of the limit slot. A return spring is sleeved on the outer surface of the limit support rod, and both ends of the return spring are fixedly connected to the movable pull plate and the limit block respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, the provided needle can be used to puncture the vein of a person to realize venous blood collection, and the provided threaded connection groove and threaded connection block can make the needle firmly and stably connected to the needle seat, thereby ensuring the connection strength between the needle and the needle seat; the provided needle handle can be convenient for medical staff to hold, so as to better grasp the puncture position of the needle; the provided anti-detachment block and anti-detachment component can make the needle seat firmly and stably connected to the connecting sleeve through the connecting support plate, thereby ensuring the connection strength between the needle seat and the connecting sleeve, and making the overall structural stability better, so it is not easy for parts to fall off due to pulling during use, thereby ensuring its normal blood collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the needle seat and the needle of the utility model;

[0017] Figure 5 It is a schematic diagram of the connection structure between the needle seat and the connecting sleeve of the utility model;

[0018] Figure 6 For the utility model Figure 2 Enlarged view of point A.

[0019] In the figure: 1. needle seat; 2. needle; 3. threaded connection groove; 4. threaded connection block; 5. needle handle; 6. connecting support plate; 7. anti-dropping block; 8. limiting slot; 9. connecting sleeve; 10. anti-dropping slot; 11. through slot; 12. movable pull plate; 13. movable pull ring; 14. limiting support rod; 15. limiting block; 16. reset spring; 17. blood collection hose. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] Please see attached Figure 1-6 , the utility model provides a technical solution:

[0023] The present anti-falling venous blood collection needle comprises a needle seat 1, a needle 2 is arranged on one side of the needle seat 1, a protective sleeve is arranged on the outer side of the needle 2, a needle handle 5 is fixedly connected to the side of the bottom end of the needle seat 1 close to the needle 2, a connecting support plate 6 is fixedly connected to the side of the needle seat 1 away from the needle 2, an anti-falling block 7 is symmetrically and fixedly connected to the upper and lower ends of the connecting support plate 6 away from the needle seat 1, a limiting slot 8 is arranged on the anti-falling block 7, a connecting sleeve 9 is arranged on the side of the connecting support plate 6 away from the needle seat 1, anti-falling slots 10 are symmetrically arranged on the upper and lower ends of the connecting sleeve 9 close to the connecting support plate 6, and an anti-falling component is arranged in the anti-falling slot 10, and a blood sampling hose 17 is connected to the side of the connecting sleeve 9 away from the connecting support plate 6.

[0024] A threaded connection groove 3 is provided at one end of the needle seat 1 near the needle 2, and an internal thread is provided on the inner wall of the threaded connection groove 3. A threaded connection block 4 is fixedly connected to one end of the needle 2 near the needle seat 1, and an external thread matching the internal thread specification is provided on the outer surface of the threaded connection block 4. The threaded connection groove 3 and the threaded connection block 4 can firmly and stably connect the needle 2 to the needle seat 1, ensuring the connection strength between the needle 2 and the needle seat 1. The needle seat 1, the connecting support plate 6, and the connecting sleeve 9 are all arranged with an internal hollow structure, and the needle seat 1, the connecting support plate 6, and the connecting sleeve 9 are interconnected, and the connected arrangement can facilitate blood collection. The anti-drop assembly includes a through slot 11 penetrating the connecting sleeve 9 and the anti-drop slot 10 and a movable pull plate 12 arranged on the outside of the connecting sleeve 9, a movable pull ring 13 is fixedly connected to the outside of the movable pull plate 12, and a limiting support rod 14 extending into the through slot 11 is fixedly connected to the inside of the movable pull plate 12, one end of the limiting support rod 14 is fixedly connected to the movable pull ring 13, and the other end is fixedly connected to a limiting block 15 matching the specifications of the limiting slot 8. A reset spring 16 is sleeved on the outer surface of the limiting support rod 14, and the two ends of the reset spring 16 are fixedly connected to the movable pull plate 12 and the limiting block 15 respectively. The anti-drop block 7 and the anti-drop assembly can make the needle seat 1 firmly and stably connected to the connecting sleeve 9 through the connecting support plate 6, ensure the connection strength of the needle seat 1 and the connecting sleeve 9, and make the overall structural stability better, so it is not easy to cause the components to fall off due to pulling during use, thereby ensuring its normal blood collection.

[0025] The use process of this blood collection needle: the needle 2 can be used to puncture the vein of a person to achieve venous blood collection. The threaded connection groove 3 and the threaded connection block 4 can make the needle 2 firmly and stably connected to the needle seat 1, ensuring the connection strength between the needle 2 and the needle seat 1. The needle handle 5 can be convenient for medical staff to hold, so as to better grasp the puncture position of the needle 2; the anti-dropping block 7 and the anti-dropping assembly can make the needle seat 1 firmly and stably connected to the connecting sleeve 9 through the connecting support plate 6, ensuring the connection strength between the needle seat 1 and the connecting sleeve 9, so that the overall structural stability is better, so it is not easy to cause the parts to fall off due to pulling during use, thereby ensuring its normal blood collection. When the needle seat 1 is connected to the connecting sleeve 9, first pull the limit support rod 14 outward through the movable pull ring 13, and the limit support rod 14 will drive the limit block 15 to be collected into the through groove 11, and then insert the anti-dropping block 7 on the connecting support plate 6 into the anti-dropping groove 10 and release the movable pull ring 13. Since the anti-dropout slot 10 has no obstruction when the movable pull ring 13 pulls the limiting support rod 14 and the limiting block 15 outward, the anti-dropout block 7 can be smoothly inserted into the anti-dropout slot 10, and when the movable pull ring 13 pulls the limiting support rod 14 and the limiting block 15 outward, the limiting block 15 will squeeze the reset spring 16. Therefore, when the movable pull ring 13 is released, the squeezing force of the reset spring 16 disappears, and the reset spring 16 will drive the limiting block 15 to reset through its own resilience, so that the limiting block 15 is inserted into the limiting slot 8, thereby providing a stable connection strength for the connection between the needle seat 1 and the connecting sleeve 9.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the scope and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-dropout venous blood collection needle, comprising a needle holder (1), characterized in that: A needle (2) is provided on one side of the needle seat (1), and a protective sleeve is provided on the outer side of the needle (2). A needle handle (5) is fixedly connected to the side of the bottom end of the needle seat (1) close to the needle (2). A connecting support disk (6) is fixedly connected to the side of the needle seat (1) away from the needle (2). The upper and lower ends of the connecting support disk (6) away from the needle seat (1) are symmetrically and fixedly connected with anti-dropping blocks (7), and a limiting slot (8) is provided on the anti-dropping block (7). A connecting sleeve (9) is provided on the side of the connecting support disk (6) away from the needle seat (1). The upper and lower ends of the connecting sleeve (9) close to the side of the connecting support disk (6) are symmetrically provided with anti-dropping slots (10), and an anti-dropping component is provided in the anti-dropping slot (10). The side of the connecting sleeve (9) away from the connecting support disk (6) is connected to a blood sampling hose (17).

2. The anti-dropping venous blood collection needle according to claim 1, characterized in that: The needle seat (1) has a threaded connection groove (3) at one end close to the needle head (2), and an inner wall of the threaded connection groove (3) has an internal thread; the needle head (2) has a threaded connection block (4) fixedly connected to one end close to the needle seat (1), and an outer surface of the threaded connection block (4) has an external thread matching the specification of the internal thread.

3. The anti-dropping venous blood collection needle according to claim 1, characterized in that: The needle seat (1), the connecting support disc (6) and the connecting sleeve (9) are all provided with internal hollow structures, and the needle seat (1), the connecting support disc (6) and the connecting sleeve (9) are interconnected.

4. The anti-dropping venous blood collection needle according to claim 1, characterized in that: The anti-slip assembly comprises a through slot (11) penetrating the connecting sleeve (9) and the anti-slip slot (10) and a movable pull plate (12) arranged outside the connecting sleeve (9), a movable pull ring (13) being arranged on the outside of the movable pull plate (12) and a limiting support rod (14) extending into the through slot (11) being fixedly connected to the inside of the movable pull plate (12).

5. The anti-dropping venous blood collection needle according to claim 4, characterized in that: One end of the limiting support rod (14) is fixedly connected to the movable pull ring (13), and the other end is fixedly connected to a limiting block (15) matching the specifications of the limiting slot (8). A return spring (16) is sleeved on the outer surface of the limiting support rod (14), and the two ends of the return spring (16) are respectively fixedly connected to the movable pull plate (12) and the limiting block (15).

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