Blood sampling bottle for testing blood

Abstract

The utility model relates to the field of blood sampling instruments, and discloses a blood sampling bottle for testing blood, which comprises a blood sampling bottle and a blood sampling component, the blood sampling component comprises a connecting cover, and the detachable connection between the connecting cover and a bottle cap is realized through the matching of an internal thread arranged on the connecting cover and an external thread arranged on the bottle cap of the blood sampling bottle. A mounting hole is coaxially formed in the closed end of the connecting cover, a puncture needle is mounted in the mounting hole, the puncture needle is communicated with the blood taking needle through a blood taking tube, a pressing assembly is arranged on the connecting cover, and the pressing assembly is used for being pressed by medical staff, so that a needle head of the puncture needle is inserted into the blood taking bottle; when the scheme is used, on one hand, a medical worker can press the pressing assembly with one hand, the other hand can hold the blood taking needle in the whole process, the discomfort of a patient during blood taking is relieved, on the other hand, the medical worker can press the puncture needle into a blood taking bottle, force does not need to be exerted later, and the working intensity of the medical worker is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to the field of blood sampling instruments, and in particular to a blood sampling bottle for testing blood. Background Art

[0002] Routine blood test is a common test item in human health detection, including blood collection from physical examinees or patients. During the existing blood collection, a needle is generally inserted into a blood vessel in the arm, and then another needle is inserted into a blood collection bottle, and the blood flows into the blood collection bottle. However, this blood collection method has some shortcomings: after inserting the needle into the blood vessel in the arm, the medical staff generally holds the needle with one hand, and inserts the other needle into the blood collection bottle with the other hand. This operation of inserting the other needle into the blood collection bottle with one hand is relatively difficult. Improper operation may also easily cause the needle inserted into the blood vessel in the arm to shake, causing discomfort to the patient.

[0003] After searching, the applicant found the Chinese utility model patent with authorization announcement number CN215874667U, which discloses a blood collection bottle for testing blood. Referring to the records of the existing patent document, it can be seen that when collecting blood, medical staff need to pinch the movable cover with their index finger and middle finger. After the needle pierces the blood vessel, they need to manually move the movable cover so that the guide tube pierces the rubber layer (equivalent to another needle piercing the blood collection bottle). After the blood collection is completed, the index finger and middle finger release the movable cover, and the reset spring pushes the movable cover to reset. It can be seen that: during the blood collection process, on the one hand, because the needle is equivalent to the device On the other hand, due to the presence of the reset spring, the medical staff's index finger and middle finger should continue to pinch the movable cover, and both of them undoubtedly require the medical staff to apply force to the blood collection bottle and the movable cover, which increases the labor intensity of the medical staff. The medical staff may fail to apply enough force due to fatigue and other reasons, which may cause the guide tube to reset and leave the blood collection bottle, or may cause hand tremors due to long-term exertion, which may cause the blood collection bottle to shake. The former directly affects the blood collection process, and the latter may easily cause discomfort to the patient.

[0004] Based on the above, the utility model proposes a blood collection bottle for testing blood. Utility Model Content

[0005] In order to solve the problems mentioned in the above background, the utility model provides a blood collection bottle for testing blood.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows.

[0007] A blood collection bottle for testing blood comprises a blood collection bottle and a blood collection assembly, wherein the blood collection assembly comprises a connecting cover, wherein an internal thread arranged on the connecting cover cooperates with an external thread arranged on a bottle cap of the blood collection bottle to achieve a detachable connection between the connecting cover and the bottle cap, a mounting hole is coaxially provided at the closed end of the connecting cover, a puncture needle is installed in the mounting hole, the puncture needle and the blood collection needle are connected via a blood collection tube, a pressing assembly is arranged on the connecting cover, and the pressing assembly is used for medical staff to press so that the needle tip of the puncture needle passes through the rubber skin on the bottle cap of the blood collection bottle and enters the blood collection bottle.

[0008] As a further improvement and optimization of the utility model, the pressing assembly includes a limiting ring which is sleeved on the outside of the puncture needle. The inner ring surface of the limiting ring is connected to the puncture needle through a connecting ring or a connecting protrusion. The connecting ring or the connecting protrusion is made of plastic and will break when subjected to force. The limiting ring is located outside the connecting cover and contacts the closed end of the connecting cover.

[0009] As a further improvement and optimization of the utility model, the pressing assembly also includes a pressing plate and an anti-detachment ring arranged on the outer cylindrical surface of the puncture needle. Initially, the anti-detachment ring and the limiting ring are respectively located on the inner and outer sides of the connecting cover and are in contact with the closed end of the connecting cover.

[0010] As a further improvement and optimization of the utility model, the pressing assembly also includes a protrusion arranged on the outer cylindrical surface of the puncture needle and located inside the connecting cover, and the upper end surface of the protrusion is provided with an inclined surface 1. When the blood collection bottle is arranged vertically and the connecting cover is installed on the bottle cap, the distance between the inclined surface 1 and the puncture needle decreases from bottom to top.

[0011] As a further improvement and optimization of the utility model, a sliding hole is radially opened on the outer cylindrical surface of the connecting cover, a push rod is sleeved in the sliding hole, one end of the push rod is located outside the connecting cover and is provided with a pressing block, and the other end is provided with a second inclined surface, which is in contact with the first inclined surface.

[0012] As a further improvement and optimization of the utility model, a side ring is sleeved on the outside of the push rod, and initially, the side ring contacts the inner wall of the connecting cover.

[0013] As a further improvement and optimization of the utility model, two protrusions are provided along the circumferential direction of the puncture needle, and two push rods are provided corresponding to the protrusions.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When using this solution, the medical staff disassembles the bag, takes out the blood collection component, and first screws the connecting cover onto the bottle cap of the blood collection bottle. At this time, the puncture needle is facing the rubber skin on the blood collection bottle. Then, the medical staff inserts the blood collection needle into the patient's blood vessel. Then, the medical staff continues to hold the blood collection needle with one hand and presses the pressing component with the other hand to make the needle head of the puncture needle pierce into the blood collection bottle. Then, the blood flows into the blood collection bottle through the blood collection needle, the blood collection tube, and the puncture needle. Compared with the prior art mentioned in the background technology, this solution In the case, on the one hand, the medical staff can press the pressing component with one hand to make the needle tip of the puncture needle penetrate into the blood collection bottle. Therefore, after the blood collection needle penetrates into the patient's blood vessel, the medical staff can hold the blood collection needle with the other hand throughout the process until the blood collection is completed, which can prevent the blood collection needle from shaking and reduce the patient's discomfort during blood collection. On the other hand, the medical staff can press to make the needle tip of the puncture needle penetrate into the blood collection bottle, and there is no need to exert force afterwards, which greatly reduces the work intensity of the medical staff and reduces the medical staff's fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a blood collection bottle in the prior art;

[0017] Figure 2 is a schematic diagram of embodiment 1;

[0018] Figure 3 is a cross-sectional view of embodiment 1;

[0019] Figure 4 is a schematic diagram of a pressing assembly of Embodiment 1;

[0020] Figure 5 It is a schematic diagram of a puncture needle and a limiting ring;

[0021] Figure 6 It is a schematic diagram of Embodiment 2;

[0022] Figure 7 is a cross-sectional view of embodiment 2;

[0023] Figure 8 It is a schematic diagram of the pressing assembly of the second embodiment.

[0024] The reference numerals in the accompanying drawings are:

[0025] 1. Blood collection bottle; 2. Blood collection needle; 3. Puncture needle; 4. Blood collection tube; 5. Connecting cover; 6. Pressing plate; 7. Limiting ring; 8. Bump; 9. Push rod; 10. Pressing block; 11. Side ring. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0027] A blood collection bottle for testing blood, comprising a blood collection bottle 1 and a blood collection assembly, wherein:

[0028] Reference Figure 1 The blood collection bottle 1 includes a bottle body a, a bottle cap b arranged at the bottle mouth of the bottle body a, and a rubber skin c arranged at the center of the bottle cap b. The difference from the prior art is that the bottle cap of the blood collection bottle 1 in this scheme is provided with an external thread.

[0029] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 The blood collection assembly includes a connecting cover 5. By cooperating between the internal thread set on the connecting cover 5 and the external thread set on the bottle cap of the blood collection bottle 1, a detachable connection between the connecting cover 5 and the bottle cap can be achieved. A mounting hole is coaxially opened at the closed end of the connecting cover 5, and a puncture needle 3 is installed in the mounting hole. The puncture needle 3 and the blood collection needle 2 are connected through the blood collection tube 4.

[0030] The connection cover 5 is provided with a pressing assembly for medical personnel to press so that the puncture needle 3 is inserted into the rubber skin.

[0031] During use, the medical staff opens the bag, takes out the blood collection component, and first screws the connecting cover 5 onto the bottle cap of the blood collection bottle 1. At this time, the puncture needle 3 is facing the rubber skin on the blood collection bottle 1. Then, the medical staff inserts the blood collection needle 2 into the patient's blood vessel. Then, the medical staff continues to hold the blood collection needle 2 with one hand, and presses the pressing component with the other hand to make the puncture needle 3 pierce the rubber skin and penetrate into the blood collection bottle 1. Then, the blood flows into the blood collection bottle 1 through the blood collection needle 2, the blood collection tube 4, and the puncture needle 3. After waiting for a preset time, the blood collection needle 2 is pulled out and the connecting cover 5 is removed. At the same time, the puncture needle 3 leaves the blood collection bottle 1 and the blood collection is completed. Example

[0032] Reference Figure 4 and Figure 5 The pressing assembly includes a pressing plate 6 arranged on the outer cylindrical surface of the puncture needle 3 and a limiting ring 7 and an anti-separation ring sleeved on the outside of the puncture needle 3. The anti-separation ring is not shown in the figure. Initially, the anti-separation ring and the limiting ring 7 are respectively located on the inner and outer sides of the connecting cover 5 and are both in contact with the closed end of the connecting cover 5, wherein the anti-separation ring is located inside the connecting cover 5, and the limiting ring 7 is located outside the connecting cover 5. The puncture needle 3 is restricted on the connecting cover 5 by the cooperation between the anti-separation ring and the limiting ring 7.

[0033] The inner ring surface of the limiting ring 7 is connected to the puncture needle 3 via a connecting ring. The connecting ring is made of plastic and is relatively thin. It will break when subjected to a slight force. Alternatively, the connecting ring can be replaced with a connecting protrusion.

[0034] When collecting blood, the medical staff holds the blood collection bottle 1 in the palm of their hand and applies force to the pressing plate 6 with their thumb to break the connecting ring or the connecting protrusion, so that the puncture needle 3 is inserted into the blood collection bottle 1. Example

[0035] Reference Figure 8 The pressing assembly also includes a limiting ring 7 arranged outside the puncture needle 3, and the limiting ring 7 is also connected to the puncture needle 3 through a connecting ring or a connecting protrusion. In addition, the difference is that:

[0036] The pressing assembly also includes a protrusion 8 arranged on the outer surface of the puncture needle 3 and located in the connecting cover 5. Two protrusions 8 are arranged along the circumferential direction of the puncture needle 3. The upper end surface of the protrusion 8 is provided with an inclined surface 1. When the blood collection bottle 1 is arranged vertically and the connecting cover 5 is installed on the bottle cap, the distance between the two inclined surfaces 1 decreases from bottom to top.

[0037] The pressing assembly also includes a sliding hole radially arranged on the outer circumferential surface of the connecting cover 5, a push rod 9 is sleeved in the sliding hole, one end of the push rod 9 is located outside the connecting cover 5 and is provided with a pressing block 10, and the other end is provided with a second inclined surface, which is in contact with the first inclined surface. A side ring 11 is also sleeved on the outside of the push rod 9, and initially, the side ring 11 contacts the inner wall of the connecting cover 5.

[0038] Two push rods 9 are provided corresponding to the protrusions 8 .

[0039] During blood collection, after the connecting cover 5 is installed on the bottle cap, the downward movement of the puncture needle 3 is limited due to the restriction of the limiting ring 7, and the push rod 9 cannot move away from the puncture needle 3 due to the existence of the side ring 11, so that the upward movement of the puncture needle 3 is limited, that is, the puncture needle 3 is restricted to be installed on the connecting cover 5 and will not pierce the rubber skin;

[0040] After the blood collection needle 2 pierces the patient's blood vessel, the thumb and index finger of the medical staff apply force to the two pressing blocks 10 respectively, so that the puncture needle 3 can pierce the rubber skin and pierce into the blood collection bottle 1.

[0041] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A blood collection bottle for testing blood, comprising a blood collection bottle (1) and a blood collection assembly, characterized in that: The blood collection assembly comprises a connecting cover (5), wherein an internal thread provided on the connecting cover (5) cooperates with an external thread provided on a cap of a blood collection bottle (1) to achieve a detachable connection between the connecting cover (5) and the cap; a mounting hole is coaxially provided at the closed end of the connecting cover (5), a puncture needle (3) is mounted in the mounting hole, the puncture needle (3) and the blood collection needle (2) are connected via a blood collection tube (4); a pressing assembly is provided on the connecting cover (5), and the pressing assembly is used for medical personnel to press so that the needle tip of the puncture needle (3) passes through the rubber skin on the cap of the blood collection bottle (1) and enters the blood collection bottle (1).

2. A blood collection bottle for testing blood according to claim 1, characterized in that: The pressing assembly comprises a limiting ring (7) sleeved on the outside of the puncture needle (3); the inner ring surface of the limiting ring (7) is connected to the puncture needle (3) via a connecting ring or a connecting protrusion; the connecting ring or the connecting protrusion is made of plastic and will break when subjected to force; the limiting ring (7) is located outside the connecting cover (5) and contacts the closed end of the connecting cover (5).

3. A blood collection bottle for testing blood according to claim 2, characterized in that: The pressing assembly further comprises a pressing plate (6) and an anti-separation ring arranged on the outer circumferential surface of the puncture needle (3). Initially, the anti-separation ring and the limiting ring (7) are respectively located on the inner and outer sides of the connecting cover (5) and are both in contact with the closed end of the connecting cover (5).

4. A blood collection bottle for testing blood according to claim 2, characterized in that: The pressing assembly further comprises a protrusion (8) arranged on the outer circumferential surface of the puncture needle (3) and located inside the connecting cover (5); an upper end surface of the protrusion (8) is provided with an inclined surface 1, and when the blood collection bottle (1) is arranged vertically and the connecting cover (5) is mounted on the bottle cover, the distance between the inclined surface 1 and the puncture needle (3) decreases from bottom to top.

5. A blood collection bottle for testing blood according to claim 4, characterized in that: The outer circumferential surface of the connection cover (5) is provided with a sliding hole in the radial direction, and a push rod (9) is sleeved in the sliding hole. One end of the push rod (9) is located outside the connection cover (5) and is provided with a pressing block (10), and the other end is provided with a second inclined surface, and the second inclined surface is in contact with the first inclined surface.

6. A blood collection bottle for testing blood according to claim 5, characterized in that: The outer sleeve of the push rod (9) is provided with a side ring (11), and initially, the side ring (11) is in contact with the inner wall of the connecting cover (5).

7. A blood collection bottle for testing blood according to claim 5, characterized in that: Two protrusions (8) are provided along the circumferential direction of the puncture needle (3), and two push rods (9) are provided corresponding to the protrusions (8).

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