Blood taking needle with Y-shaped connector

Abstract

The utility model relates to the field of blood taking needles, and discloses a Y-shaped connector blood taking needle which comprises a connecting shell, a blood taking tube is arranged on the left surface of the connecting shell, a first connecting tube is arranged on the front surface of the connecting shell, a second connecting tube is arranged on the rear surface of the connecting shell, and an adjusting assembly is arranged on the inner wall of the connecting shell and comprises a ball block. The ball block is rotationally connected to the inner wall of the connecting shell, a through hole is formed in the left surface of the ball block, a rotating rod is fixedly connected to the upper surface of the ball block and rotationally connected to the upper surface of the connecting shell in a penetrating mode, and a sliding groove is formed in the inner wall of the through hole. According to the blood collection tube, the blood collection tube, the first connecting tube and the second connecting tube are communicated through the connecting shell, communication and closing among the blood collection tube, the first connecting tube and the second connecting tube are rapidly adjusted through the adjusting assembly arranged on the inner wall of the connecting shell, adjustment does not need to be conducted in a mode of clamping the connecting tubes, and convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of blood collection needles, and in particular to a Y-type connector blood collection needle. Background Technology

[0002] The blood collection needles currently on the market are straight, bidirectional blood collection needles. One end of this type of needle is a blood collection puncture needle, and the other end is a detachable straight bottle stopper puncture needle. The operating procedure is as follows: First, insert the blood collection puncture needle into the intravenous indwelling needle, then fold the transparent rubber tube back to prevent blood from flowing out; next, remove the bottle stopper puncture needle, insert the needle of the syringe, draw 1 ml of blood, then fold the transparent rubber tube back again, discard the syringe containing blood, then insert the bottle stopper puncture needle back into its original position, and finally insert the bottle stopper puncture needle into the vacuum blood collection needle to perform the blood collection operation.

[0003] A search revealed Chinese Patent Publication No. CN215017578U, which discloses a visual blood return Y-type blood collection needle, comprising a blood collection needle head, a main blood collection tube, and a bottle stopper puncture needle. The blood collection needle head is fixedly connected to one end of the main blood collection tube, which is fitted with a flow-stopping clamp. The front end of the first branch tube is connected to the bottle stopper puncture needle, and a corrugated rubber sleeve covering the bottle stopper puncture needle is fixedly installed on the needle handle. The front end of the second branch tube is connected to a positive pressure connector. A flow-stopping device is fitted together on the outside of the first and second branch tubes. The flow-stopping device consists of three limiting plates fixedly connected by a connecting rod, and each pair of adjacent limiting plates has a sliding tooth groove on its opposite side. A clamp is fixedly installed directly below each sliding plate and at the bottom of the sliding tooth groove. This utility model provides a soft, automatically rebounding protective sleeve on the bottle stopper puncture needle head to prevent needlestick injuries, and the flow-stopping device facilitates centralized control of the flow of each tube, simplifying operation and making it convenient to use.

[0004] While the aforementioned technology has made some improvements through its structural design, it still has certain drawbacks in its use. When in use, it switches the direction of blood flow through a flow-stopping device, which controls the closure of the connecting tube by clamping. This requires repeatedly controlling the closure of different connecting tubes using the flow-stopping device according to different needs, a process that is overly cumbersome. Furthermore, repeated clamping of the connecting tube may cause damage. Therefore, a Y-type connector blood collection needle is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a Y-type connector blood collection needle, which aims to improve the problem that the flow-stopping device set in some existing Y-type connector blood collection needles is too cumbersome to operate and may damage the connecting tube.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a Y-type connector blood collection needle, comprising a connecting shell, a blood collection tube disposed on the left surface of the connecting shell, a connecting tube one disposed on the front surface of the connecting shell, a connecting tube two disposed on the rear surface of the connecting shell, an adjusting assembly disposed on the inner wall of the connecting shell, the adjusting assembly comprising a ball block, the ball block being rotatably connected to the inner wall of the connecting shell, a through hole being opened on the left surface of the ball block, a rotating rod being fixedly connected to the upper surface of the ball block, the rotating rod being rotatably connected to the upper surface of the connecting shell through the through hole, and a sliding groove being opened on the inner wall of the through hole.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly also includes a sealing ring, which is slidably connected to the inner wall of the left end of the through hole, and the outer wall of the left end of the sealing ring contacts the inner wall of the right end of the blood collection tube.

[0009] As a further description of the above technical solution:

[0010] The adjustment assembly also includes a pointing plate, which is slidably connected to the outer wall of the rotating rod. A spring is sleeved on the outer wall of the rotating rod, with one end of the spring fixedly connected to the lower surface of the rotating rod and the other end of the spring fixedly connected to the upper surface of the pointing plate.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the slide groove is elastically connected to a slider by a second spring. The lower surface of the slider is slidably connected to the inner wall of the slide groove, and the upper surface of the slider is fixedly connected to the right end of the lower surface of the sealing ring. One end of the second spring is fixedly connected to the inner wall of the slide groove, and the other end of the second spring is fixedly connected to the right surface of the slider.

[0013] As a further description of the above technical solution:

[0014] The left surface of the sealing ring is set as an arc-shaped surface.

[0015] As a further description of the above technical solution:

[0016] The through hole is configured in a V shape.

[0017] As a further description of the above technical solution:

[0018] The upper surface of the connecting shell has multiple sets of limiting grooves, and the lower surface of the pointing plate is fixedly connected to a limiting rod, the lower surface of which contacts the inner wall of the limiting groove.

[0019] As a further description of the above technical solution:

[0020] The sealing ring, slider, and spring are provided in multiple sets, and multiple sets of sealing ring, slider, and spring are provided on the inner wall of the rear end of the through hole.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the blood collection tube, connecting tube one and connecting tube two are connected by the connecting shell, and the connection between the blood collection tube, connecting tube one and connecting tube two can be quickly adjusted by the adjustment component set on the inner wall of the connecting shell, without the need to adjust by clamping the connecting tube, which improves convenience.

[0023] 2. In this utility model, during adjustment, the gap between the connecting pipe, the connecting shell and the ball block can be filled by the cooperation between the sealing ring, the slider and the second spring, so as to prevent liquid from entering the gap between the ball block and the connecting shell, thereby improving the sealing performance and the stability of liquid pumping. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 2 This is a split cross-sectional view of the three-dimensional structure of the connecting shell and the spherical block in this utility model;

[0026] Figure 3 In this utility model Figure 1 An enlarged schematic diagram of the three-dimensional structure of region A;

[0027] Figure 4 In this utility model Figure 2 An enlarged schematic diagram of the three-dimensional structure of region B.

[0028] Legend:

[0029] 1. Blood collection tube; 2. Connecting shell; 3. Connecting tube one; 4. Connecting tube two; 51. Rotating rod; 52. Pointer plate; 53. Spring one; 54. Limiting rod; 55. Ball block; 56. Through hole; 57. Slide groove; 58. Sealing ring; 59. Sliding block; 510. Spring two; 6. Limiting groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0031] Reference Figure 1 , Figure 3 - Figure 4 This utility model provides an embodiment of a Y-type connector blood collection needle, including a connecting shell 2. The connecting shell 2 connects the blood collection tube 1, connecting tube 3, and connecting tube 4, forming a Y-shape, facilitating multi-directional operation by medical personnel. The left surface of the connecting shell 2 is provided with the blood collection tube 1, which is existing technology. A needle is provided at its left end, allowing insertion into the patient's blood vessel for blood collection. The front surface of the connecting shell 2 is provided with connecting tube 3, and the rear surface of the connecting shell 2 is provided with connecting tube 4. Connecting tube 4 is another set of connecting tubes for the Y-type connector blood collection needle, which is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. The blood collection tube 1... The three connecting tubes 1, 3, and 4 are spaced at the same angle. The inner wall of the connecting shell 2 is provided with an adjustment component, which includes a ball block 55. The ball block 55 is rotatably connected to the inner wall of the connecting shell 2. A through hole 56 is opened on the left surface of the ball block 55. The through hole 56 is set in a V shape. The angle of the V shape is the same as the distance angle between the blood collection tube 1, the connecting tube 1, and the connecting tube 2, ensuring that the blood flow direction can be smoothly adjusted when the ball block 55 is rotated. A rotating rod 51 is fixedly connected to the upper surface of the ball block 55. By rotating the rotating rod 51, the ball block 55 can be driven to rotate stably. The rotating rod 51 is rotatably connected to the upper surface of the connecting shell 2. A groove 57 is opened on the inner wall of the through hole 56 to ensure the stable sliding of the slider 59.

[0032] Reference Figure 1 - Figure 2 , Figure 4 The regulating assembly also includes a sealing ring 58 to ensure smooth flow of liquid. The sealing ring 58 is slidably connected to the inner wall of the left end of the through hole 56, and the outer wall of the left end of the sealing ring 58 contacts the inner wall of the right end of the blood collection tube 1. The inner wall of the slide groove 57 is elastically connected to a slider 59 through a second spring 510 to ensure stable horizontal movement of the sealing ring 58. The second spring 510 pushes the slider 59 to the left through its own elasticity to ensure the sealing performance of the sealing ring 58. The lower surface of the slider 59 is slidably connected to the inner wall of the slide groove 57, and the upper surface of the slider 59 is fixedly connected to the right end of the lower surface of the sealing ring 58. One end of the second spring 510 is fixedly connected to the inner wall of the slide groove 57, and the other end of the second spring 510 is fixedly connected to the right surface of the slider 59. The left surface of the sealing ring 58 is set as an arc surface to ensure that the sealing ring 58 can be smoothly disengaged from the inner wall of the connecting tube when the ball block 55 is rotated.

[0033] Reference Figure 2 - Figure 4The adjustment assembly also includes a guide plate 52. The guide plate 52 is V-shaped and has the same angle as the through hole 56, which indicates which two sets of connecting pipes are connected. The guide plate 52 is slidably connected to the outer wall of the rotating rod 51. A spring 53 is sleeved on the outer wall of the rotating rod 51. The spring 53, through its elasticity, constantly pushes the guide plate 52 downward to ensure the stability of the limit rod 54. One end of the spring 53 is fixedly connected to the lower surface of the rotating rod 51, and the other end of the spring 53 is fixedly connected to the guide plate 52. On the upper surface of the connecting shell 2, there are multiple sets of limiting grooves 6. The lower surface of the pointing plate 52 is fixedly connected to a limiting rod 54 that limits the rotation rod 51. The lower surface of the limiting rod 54 contacts the inner wall of the limiting groove 6. Multiple sets of sealing rings 58, sliders 59, and springs 510 are provided, and multiple sets of sealing rings 58, sliders 59, and springs 510 are provided on the inner wall of the rear end of the through hole 56. The sealing performance of the connection between the two ends of the through hole 56 is ensured by the multiple sets of sealing rings 58, sliders 59, and springs 510.

[0034] Working principle: During blood collection, the needle at the left end of blood collection tube 1 is inserted into the patient's blood vessel. The connecting shell 2 connects blood collection tube 1, connecting tube 1, and connecting tube 2 to form a Y-shaped structure, which facilitates multi-directional operation by medical staff.

[0035] When adjusting the blood flow direction, simply rotate the rotating rod 51 to make the ball block 55 rotate on the inner wall of the connecting shell 2. By adjusting the angle of the V-shaped through hole 56 on the left surface of the ball block 55, the communication between the blood collection tube 1, connecting tube 1 3 and connecting tube 2 4 can be adjusted. Before rotating the rotating rod 51, the pointing plate 52 needs to be pushed upward to move the limiting rod 54 on its lower surface and disengage it from the inner wall of the limiting groove 6. At the same time, the pointing plate 52 will squeeze the spring 1 53. After the adjustment is completed, the pointing plate 52 can be released. The spring 1 53 will push the pointing plate 52 back to its original position, and the limiting rod 54 will also be inserted into the inner wall of the limiting groove 6. Medical staff can determine which two sets of tubes are connected by the direction pointed by the pointing plate 52.

[0036] In addition, when the ball block 55 is rotated, the arc-shaped surface of the left side of the sealing ring 58 can ensure that it can be smoothly separated from the inner wall of the connecting tube. The sealing ring 58 will drive the slider 59 to move and squeeze the second spring 510 until the sealing ring 58 overlaps with one of the three: the blood collection tube 1, the first connecting tube 3, and the second connecting tube 4. Then, the elasticity of the second spring 510 will insert into it to ensure the sealing of the connection.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Y-type connector blood collection needle, comprising a connecting shell (2), characterized in that: The left surface of the connecting shell (2) is provided with a blood collection tube (1), the front surface of the connecting shell (2) is provided with a connecting pipe one (3), the rear surface of the connecting shell (2) is provided with a connecting pipe two (4), the inner wall of the connecting shell (2) is provided with an adjustment component, the adjustment component includes a ball block (55), the ball block (55) is rotatably connected to the inner wall of the connecting shell (2), the left surface of the ball block (55) is provided with a through hole (56), the upper surface of the ball block (55) is fixedly connected with a rotating rod (51), the rotating rod (51) is rotatably connected to the upper surface of the connecting shell (2), and the inner wall of the through hole (56) is provided with a sliding groove (57).

2. The Y-type connector blood collection needle according to claim 1, characterized in that: The adjustment assembly also includes a sealing ring (58), which is slidably connected to the inner wall of the left end of the through hole (56), and the outer wall of the left end of the sealing ring (58) contacts the inner wall of the right end of the blood collection tube (1).

3. A Y-type connector blood collection needle according to claim 1, characterized in that: The adjustment assembly also includes a pointing plate (52), which is slidably connected to the outer wall of the rotating rod (51). A spring (53) is sleeved on the outer wall of the rotating rod (51). One end of the spring (53) is fixedly connected to the lower surface of the rotating rod (51), and the other end of the spring (53) is fixedly connected to the upper surface of the pointing plate (52).

4. A Y-type connector blood collection needle according to claim 2, characterized in that: The inner wall of the groove (57) is elastically connected to a slider (59) via a second spring (510). The lower surface of the slider (59) is slidably connected to the inner wall of the groove (57), and the upper surface of the slider (59) is fixedly connected to the right end of the lower surface of the sealing ring (58). One end of the second spring (510) is fixedly connected to the inner wall of the groove (57), and the other end of the second spring (510) is fixedly connected to the right surface of the slider (59).

5. A Y-type connector blood collection needle according to claim 2, characterized in that: The left surface of the sealing ring (58) is set as an arc surface.

6. A Y-type connector blood collection needle according to claim 1, characterized in that: The through hole (56) is configured in a V shape.

7. A Y-type connector blood collection needle according to claim 3, characterized in that: The upper surface of the connecting shell (2) has multiple sets of limiting grooves (6), and the lower surface of the pointing plate (52) is fixedly connected to a limiting rod (54), the lower surface of the limiting rod (54) is in contact with the inner wall of the limiting groove (6).

8. A Y-type connector blood collection needle according to claim 4, characterized in that: Multiple sets of sealing rings (58), sliders (59), and springs (510) are provided, and multiple sets of sealing rings (58), sliders (59), and springs (510) are provided on the inner wall of the rear end of the through hole (56).

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