Anti-needle-falling flushing and drainage device

Abstract

The utility model discloses a kind of needle-escape-preventing flushing drainage devices, it is related to medical instrument technical field.It is detachably connected with puncture needle to one end of drainage tube, the front end of puncture needle is arc, and the rear end is provided with annular groove and through-hole, the end portion of drainage tube connected with puncture needle is first connector, the rear end of puncture needle is communicated with drainage tube by first connector, first connector is rubber material, one end of first connector is covered in the rear end of puncture needle and is interference fit with puncture needle, one end of connecting pipe is detachably connected with first connector, and the other end is connected with negative pressure drainage device.The utility model is connected with puncture needle by setting first connector on drainage tube to cooperate, after making puncture needle connected with first connector, the relative fixation of both is automatically realized, and the relative movement of puncture needle and drainage tube is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a flushing and drainage device to prevent needle dislodgement. Background Technology

[0002] Drainage tubes play a very important role in surgical procedures. In postoperative catheter drainage treatment, one end of the catheter is usually inserted into the body while the other end is exposed outside the body for drainage. The drainage tube needs to be inserted through a puncture needle, so the puncture needle is also an essential part of surgical procedures.

[0003] During puncture, the existing puncture needle is prone to relative movement with the drainage tube, which can cause the drainage tube to fall out and require re-puncture. However, re-puncture will undoubtedly cause secondary harm to the patient.

[0004] Therefore, there is an urgent need for a flushing and drainage device that prevents needle detachment. Utility Model Content

[0005] The main purpose of this invention is to provide a flushing and drainage device that prevents needle detachment, so as to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides a flushing and drainage device for preventing needle dislodgement, comprising a drainage tube, a connecting tube, and a puncture needle. One end of the drainage tube is detachably connected to the puncture needle. The front end of the puncture needle is arc-shaped, and the rear end is provided with an annular groove and a through hole. The end of the drainage tube connected to the puncture needle is a first connector. The rear end of the puncture needle communicates with the drainage tube through the first connector. The first connector is made of rubber, and one end of the first connector covers the rear end of the puncture needle and is press-fitted with the puncture needle. One end of the connecting tube is detachably connected to the first connector, and the other end is connected to a negative pressure drainage device.

[0007] Furthermore, a second connector is provided at the end of the connecting tube away from the negative pressure drainage device. The second connector is detachably connected to the first connector, and a flushing tube is provided on the wall of the second connector. After the second connector is connected to the first connector, the flushing tube is connected to the drainage tube, and a one-way valve is provided on the flushing tube.

[0008] Furthermore, the drainage tube is provided with a drainage cavity and a flushing cavity; after the second connector is connected to the first connector, the drainage cavity is connected to the connector tube, and the flushing cavity is connected to the flushing tube.

[0009] Furthermore, the drainage tube has a drainage groove on its wall, and a plurality of drainage holes are evenly distributed at the bottom of the drainage groove. The drainage groove is connected to the drainage cavity through the drainage holes.

[0010] Furthermore, the drainage tube has multiple flushing holes evenly distributed on its wall, and the flushing chamber is connected to the outside through the flushing holes.

[0011] Furthermore, a negative pressure connector is connected to the end of the connecting tube away from the drainage tube, and a negative pressure ball is connected to the end of the negative pressure connector away from the connecting tube; after the second connector is connected to the first connector, the negative pressure ball communicates with the drainage cavity through the negative pressure connector, the connecting tube, the second connector and the first connector.

[0012] Furthermore, multiple annular grooves and through holes are provided, with the multiple through holes disposed between multiple annular grooves.

[0013] This utility model has the following beneficial effects:

[0014] This invention uses a first connector on the drainage tube to cooperate with the puncture needle, so that the puncture needle and the first connector are connected and automatically fixed to each other, avoiding relative movement between the puncture needle and the drainage tube. It is simple to operate and easy for medical staff to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a flushing and drainage device for preventing needle detachment according to the present invention;

[0016] Figure 2 This is a schematic diagram of the puncture needle for a flushing and drainage device that prevents needle dislodgement according to this utility model;

[0017] Figure 3 This is a schematic diagram of the through hole of a flushing and drainage device for preventing needle detachment according to this utility model;

[0018] Figure 4 This is a schematic diagram of the overall drainage tube of a flushing and drainage device for preventing needle detachment according to this utility model;

[0019] Figure 5 This is a schematic diagram of the drainage tube structure of a flushing and drainage device for preventing needle detachment according to this utility model;

[0020] Figure 6 This is a schematic diagram of the second connector of a flushing and drainage device for preventing needle detachment according to this utility model.

[0021] In the diagram: 1-drainage tube; 11-drainage cavity; 12-rinsing cavity; 13-drainage groove; 14-drainage hole; 15-rinsing hole; 2-connecting tube; 3-puncture needle; 31-annular groove; 32-through hole; 4-first connector; 5-second connector; 51-rinsing tube; 6-negative pressure connector; 7-negative pressure ball. Detailed Implementation

[0022] To achieve the above objectives and effects, the technical means and structure adopted by this utility model are described in detail with reference to the accompanying drawings, focusing on the features and functions of the preferred embodiments of this utility model.

[0023] As attached Figure 1-6 As shown, this utility model provides a flushing and drainage device to prevent needle dislodgement, including a drainage tube 1, a connecting tube 2 and a puncture needle 3; one end of the drainage tube 1 is connected to the puncture needle 3, and one end of the connecting tube 2 is connected to a negative pressure ball 7 through a negative pressure connector 6.

[0024] The front end of the puncture needle 3 is arc-shaped, and the rear end is provided with an annular groove 31 and a through hole 32. The rear end of the puncture needle 3 is connected to the drainage tube 1 through a first connector 4 on the drainage tube 1. The first connector 4 is made of rubber. One end of the first connector 4 covers the rear end of the puncture needle 3 and is press-fitted with the puncture needle 3. Thus, when the puncture needle 3 is connected to the first connector 4, the first connector 4 will cover the annular groove 31 and the through hole 32 and press against the groove formed by the two. A protrusion is formed in the annular groove 31 to prevent the two from being displaced relative to each other in the axial direction and to improve the firmness of the connection. The part pressed against the through hole 32 will be pressed into the through hole 32 to form a limiting protrusion, thereby preventing the first connector 4 from rotating relative to the puncture needle 3.

[0025] Accordingly, to ensure the fixation between the first connector 4 and the puncture needle 3, multiple annular grooves 31 and through holes 32 can be provided, and the multiple through holes 32 are arranged between the multiple annular grooves 31, thereby improving the fixation between the first connector 4 and the puncture needle 3.

[0026] In actual use, medical staff first connect the puncture needle 3 to the first connector 4 and the drainage tube 1, and then insert the drainage tube 1 into the patient's body through internal puncture. During puncture, the puncture needle 3 enters through the skin at one point and exits through the skin at another point, leaving the end of the drainage tube 1 away from the puncture needle 3 in the patient's body. Then, the puncture needle 3 is cut off from the drainage tube 1. Next, the connecting tube 2 is connected to the first connector 4, and the negative pressure connector 6 and the negative pressure ball 7 are installed in sequence. By squeezing the negative pressure ball 7, the drainage tube 1 is attracted to perform the drainage operation. The liquid will enter the negative pressure ball 7 through the drainage tube 1, the first connector 4, the connecting tube 2, and the negative pressure connector 6, waiting for further examination and other related work.

[0027] In another embodiment, the connecting tube 2 is provided with a second connector 5, and a flushing tube 51 is provided on the wall of the second connector 5. After the puncture needle 3 is cut off, the connecting tube 2 can be connected to the first connector 4 through the second connector 5, so that the flushing tube 51 is connected to the drainage tube 1. Medical staff can use the flushing tube 51 to introduce flushing fluid into the drainage tube 1 for flushing. At the same time, the flushing tube 51 is also provided with a one-way valve to prevent backflow of liquid and contamination of the flushing fluid.

[0028] In another embodiment, the drainage tube 1 is provided with a drainage cavity 11 and a flushing cavity 12 that are not interconnected. After the first connector 4 and the second connector 5 are connected, the drainage cavity 11 is connected to the connecting tube 2, and the flushing cavity 12 is connected to the flushing tube 51. Thus, the dual-cavity structure design of the drainage tube 1 avoids the problem of infection caused by using the same pipeline for drainage and flushing.

[0029] In another embodiment, a drainage groove 13 is provided on the wall of the drainage tube 1, and a plurality of drainage holes 14 are evenly distributed at the bottom of the drainage groove 13. The drainage groove 13 is connected to the drainage cavity 11 through the drainage holes 14. Thus, the drainage groove 13 increases the drainage area and prevents blockage.

[0030] In another embodiment, the drainage tube 1 has multiple flushing holes 15 evenly distributed on its wall, and the flushing chamber 12 is connected to the outside through the flushing holes 15. This increases the flushing area and improves the flushing efficiency.

[0031] The above description is only a preferred embodiment of the present utility model and not all embodiments. Anyone should know that structural changes made under the guidance of the present utility model are protected by the present utility model. All technical solutions that are the same as or similar to the present utility model are within the scope of protection of the present utility model.

Claims

1. A flushing and drainage device to prevent needle detachment, characterized in that, The device includes a drainage tube (1), a connecting tube (2), and a puncture needle (3). One end of the drainage tube (1) is detachably connected to the puncture needle (3). The front end of the puncture needle (3) is arc-shaped, and the rear end is provided with an annular groove (31) and a through hole (32). The end of the drainage tube (1) connected to the puncture needle (3) is a first connector (4). The rear end of the puncture needle (3) is connected to the drainage tube (1) through the first connector (4). The first connector (4) is made of rubber. One end of the first connector (4) covers the rear end of the puncture needle (3) and is press-fitted with the puncture needle (3). One end of the connecting tube (2) is detachably connected to the first connector (4), and the other end is connected to a negative pressure drainage device.

2. The anti-needle dislodgement flushing and drainage device as described in claim 1, characterized in that, The end of the connecting pipe (2) away from the negative pressure drainage device is provided with a second connector (5). The second connector (5) is detachably connected to the first connector (4). A flushing pipe (51) is provided on the wall of the second connector (5). After the second connector (5) is connected to the first connector (4), the flushing pipe (51) is connected to the drainage pipe (1). A one-way valve is provided on the flushing pipe (51).

3. The anti-needle dislodgement flushing and drainage device as described in claim 2, characterized in that, The drainage tube (1) is provided with a drainage cavity (11) and a flushing cavity (12); after the second connector (5) is connected to the first connector (4), the drainage cavity (11) is connected to the connector (2), and the flushing cavity (12) is connected to the flushing tube (51).

4. The anti-needle dislodgement flushing and drainage device as described in claim 3, characterized in that, The drainage tube (1) has a drainage groove (13) on its wall. The bottom of the drainage groove (13) is evenly distributed with a plurality of drainage holes (14). The drainage groove (13) is connected to the drainage cavity (11) through the drainage holes (14).

5. The anti-needle dislodgement flushing and drainage device as described in claim 3, characterized in that, The drainage tube (1) has multiple flushing holes (15) evenly distributed on its wall, and the flushing chamber (12) is connected to the outside through the flushing holes (15).

6. The anti-needle dislodgement flushing and drainage device as described in claim 3, characterized in that, The end of the connecting tube (2) away from the drainage tube (1) is connected to a negative pressure connector (6), and the end of the negative pressure connector (6) away from the connecting tube (2) is connected to a negative pressure ball (7); after the second connector (5) is connected to the first connector (4), the negative pressure ball (7) communicates with the drainage cavity (11) through the negative pressure connector (6), the connecting tube (2), the second connector (5) and the first connector (4).

7. A flushing and drainage device for preventing needle dislodgement as described in any one of claims 1-6, characterized in that, The annular groove (31) and the through hole (32) are provided in multiple ways, and the multiple through holes (32) are provided between the multiple annular grooves (31).

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