Blood sampling device

Abstract

The utility model relates to the technical field of blood sampling devices, in particular to a blood sampling device which has the characteristic of improving practicability and comprises a needle body and a connecting tube, a first protective tube is arranged outside the needle body, a second protective tube is slidably connected in the first protective tube, and a clamping ring is clamped on the upper portion of the first protective tube. A first shielding plate is arranged on the front portion of the clamping ring, a plurality of fixing plates are arranged on the front portion of the lower portion of the first shielding plate, and the first shielding plate is rotationally connected with a second shielding plate through a rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of blood sampling devices, in particular to a blood sampling device. Background Art

[0002] As we all know, hematology is an independent branch of medical science that mainly studies blood and hematopoietic tissue. Medical staff need to use blood collection devices to collect blood from patients for testing.

[0003] In real life, when medical staff insert the needle of the blood collection device into the patient's blood vessel to draw blood, they need to use tape to stick to the patient's needle insertion site. Sometimes part of the tape will stick to the needle handle and part of the needle. When pulling out the needle, the upper tape needs to be cut off, which can easily cause the needle to shake, causing the needle head to shake in the patient's blood vessel and cause pain. Therefore, the practicality is not very good and there is room for improvement. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a blood sampling device which has the characteristic of improving practicability.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blood collection device, comprising a needle body and a connecting tube, a first protective tube is arranged on the outside of the needle body, a second protective tube is slidably connected to the inside of the first protective tube, a clamping ring is clamped on the upper part of the first protective tube, a first baffle is arranged on the front part of the clamping ring, a plurality of fixed plates are arranged on the front part of the lower part of the first baffle, and the second baffle is rotatably connected to the first baffle via a rotating shaft.

[0008] Furthermore, a limiting plate is provided at the rear of the lower portion of the first shielding plate, the front end surface of the limiting plate is in contact with the rear end surface of the second shielding plate, and the rear portion of the limiting plate is in contact with the front portion of the first protective tube.

[0009] Furthermore, the upper end surface of the first protective tube is conical, the inner wall of the clamping ring is conical, and the clamping ring has a certain flexibility.

[0010] Furthermore, a handle is provided on the right portion of the first protective tube, and a gap is provided between the front end surface of the handle and the rear end surface of the second shielding plate.

[0011] Preferably, the lower end surface of the second shielding plate is arranged in an inclined shape.

[0012] Preferably, a connecting cover is provided on the left portion of the connecting pipe.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a blood sampling device with the following beneficial effects:

[0015] During blood collection, the clamping ring at the rear of the first shielding plate is clamped on the first protective tube. At this time, when the tape is applied, the tape will stick to the first shielding plate and the second shielding plate, and will not stick to the needle body or the handle. When pulling out the blood, it is only necessary to lift the second shielding plate to expose the handle and pull out the needle body. Therefore, there is no need to remove the tape when the needle body is still in the patient's skin, thereby avoiding vibration of the needle body and causing pain to the patient, thereby improving the practicality to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 It is a rear view schematic diagram of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the cooperation of the clamping ring, the first shielding plate and the second shielding plate of the utility model;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram from top view;

[0020] Figure 5 It is an enlarged schematic diagram of the cooperation of the clamping ring, the first protection tube and the first shielding plate of the utility model;

[0021] Figure 6 For this utility model Figure 1 A schematic diagram of the structure of the local enlargement shown in FIG.

[0022] Figure 7 For this utility model Figure 2 A schematic diagram of the structure with a partial enlargement of point B is shown in FIG.

[0023] In the figure: 1. needle body; 2. connecting tube; 3. first protective tube; 4. second protective tube; 5. clamping ring; 6. first shielding plate; 7. fixing plate; 8. second shielding plate; 9. limiting plate; 10. handle; 11. connecting cover. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-7 The utility model provides a blood collection device, comprising a needle body 1 and a connecting tube 2, a connecting cover 11 is provided on the left part of the connecting tube 2, a test tube for collecting blood is inserted into the connecting cover 11, a first protective tube 3 is provided on the outside of the needle body 1, a handle 10 is provided on the right part of the first protective tube 3, the handle 10 is grasped, the first protective tube 3 and the needle body 1 are driven close to the patient's arm, and then the needle body 1 is inserted into the blood vessel to collect blood, a second protective tube 4 is slidably connected to the inside of the first protective tube 3, the second protective tube 4 is pushed into the first protective tube 3, the needle body 1 can be exposed, a clamping ring 5 is clamped on the upper part of the first protective tube 3, the upper end face of the first protective tube 3 is conical, the inner wall of the clamping ring 5 is conical, it is convenient to separate the clamping ring 5 from the first protective tube 3, the clamping ring 5 has a certain flexibility, it is convenient to clamp the clamping ring 5 on the first protective tube 3, a first shielding plate 6 is provided on the front part of the clamping ring 5, the lower part of the first shielding plate 6 The front part is provided with several fixing plates 7, and is connected with the second shielding plate 8 by rotating shaft. When the medical staff fixes the blood collection device with tape, the tape is attached to the first shielding plate 6 and the second shielding plate 8, and the needle body 1 can be fixed by the clamping ring 5. The lower end face of the second shielding plate 8 is arranged in an inclined shape, and it is convenient for the fingers to extend into the lower part of the second shielding plate 8 and lift the second shielding plate 8 when the needle body 1 is extracted. A limiting plate 9 is arranged at the rear part of the lower part of the first shielding plate 6, and the front end face of the limiting plate 9 and the rear end face of the second shielding plate 8 are attached. The limiting plate 9 supports the second shielding plate 8 to prevent the second shielding plate 8 from contacting the first protective tube 3, so as to facilitate the fingers to pry the second shielding plate 8. The rear part of the limiting plate 9 contacts with the front part of the first protective tube 3, and plays a certain supporting role. A gap is arranged between the front end face of the handle 10 and the rear end face of the second shielding plate 8, so as to facilitate the medical staff to grasp the handle 10.

[0026] To summarize, when using the blood collection device, the medical staff pushes the second protective tube 4 into the first protective tube 3 to expose the needle body 1, clamps the clamping ring 5 on the first protective tube 3, and then grasps the handle 10 to insert the needle body 1 into the patient's blood vessel for blood collection. At the same time, the tape is attached to the wound, and the edge of the tape is attached to the first shielding plate 6 and the second shielding plate 8. When the collection is completed, the medical staff grasps the edge of the second shielding plate 8 with their fingers, then lifts it up, exposes the handle 10, and then grasps the handle 10 to pull out the needle body 1.

[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 principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blood sampling device, comprising a needle body (1) and a connecting tube (2), characterized in that: A first protective tube (3) is arranged outside the needle body (1), a second protective tube (4) is slidably connected inside the first protective tube (3), a clamping ring (5) is clamped on the upper part of the first protective tube (3), a first shielding plate (6) is arranged in front of the clamping ring (5), a plurality of fixing plates (7) are arranged in front of the lower part of the first shielding plate (6), and the first shielding plate (6) is rotatably connected to the second shielding plate (8) via a rotating shaft.

2. A blood sampling device according to claim 1, characterized in that: A limiting plate (9) is provided at the rear of the lower part of the first shielding plate (6), the front end surface of the limiting plate (9) is in contact with the rear end surface of the second shielding plate (8), and the rear of the limiting plate (9) is in contact with the front of the first protective tube (3).

3. A blood sampling device according to claim 1, characterized in that: The upper end surface of the first protective tube (3) is arranged in a conical shape, the inner wall of the clamping ring (5) is arranged in a conical shape, and the clamping ring (5) has a certain flexibility.

4. A blood sampling device according to claim 1, characterized in that: A handle (10) is provided at the right portion of the first protective tube (3), and a gap is provided between the front end surface of the handle (10) and the rear end surface of the second shielding plate (8).

5. A blood sampling device according to claim 1, characterized in that: The lower end surface of the second shielding plate (8) is arranged in an inclined shape.

6. A blood sampling device according to claim 1, characterized in that: A connection cover (11) is provided on the left portion of the connection pipe (2).

Images