Extracorporeal circuit connection locking device

Abstract

The utility model provides a kind of extracorporeal circulation pipeline connection locking device, it is related to medical equipment technical field, including main pipe, pipe head and pipe body, the bottom end of main pipe is communicated with pipe head, the top end of main pipe is communicated with pipe body, the inside of pipe body is equipped with locking mechanism, and puncture needle is inserted into the inside of pipe body, main pipe and pipe head in turn from top to bottom, the locking mechanism includes clamp cover, conical head, partition groove, movable sleeve, screw surface and conical groove, and movable sleeve is connected with the top of pipe body by screw surface with screw thread;The utility model passes through the inside of movable sleeve and clamp cover in turn by puncture needle, and movable sleeve is moved downwards by screwing, and the conical head of clamp cover top is inwards contracted using movable sleeve bottom end conical groove extrusion, and puncture needle is clamped using conical head, to limit puncture needle, to solve the situation that loosing is caused by not tight or external mechanical friction in prior art, once pipeline loosing is very serious.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to an extracorporeal circulation tubing connection locking device. Background Technology

[0002] Extracorporeal circulation is a life support technology that uses a series of special artificial devices to drain venous blood returning to the heart to the outside of the body, where gas exchange, temperature regulation, and filtration are performed artificially before the blood is returned to the body's arterial system. During extracorporeal circulation, because the artificial devices replace human functions, it is also called cardiopulmonary bypass, and the extracorporeal circulation machine is also called an artificial heart-lung machine. The purpose of extracorporeal circulation is to maintain the blood supply to all tissues and organs during open-heart surgery. With the development of clinical medicine, the application of extracorporeal circulation has continued to expand. It is not only used in major vascular surgeries such as heart, liver, kidney, and lung surgery, but has also achieved remarkable results in tumor treatment and life support for patients with cardiopulmonary failure, becoming an important technology in clinical medicine.

[0003] In extracorporeal circulation therapy, the connections between the extracorporeal circulation tubing and the puncture needle, as well as between the extracorporeal circulation tubing and the central venous catheter, are crucial. Sometimes, while the patient is asleep or at home, the tubing may become loose due to improper tightening or external mechanical friction. Once the tubing becomes loose, the consequences are very serious, such as massive blood loss without the patient's knowledge (statistically, the blood loss rate reaches 200 mL per minute), air embolism, and infection. These serious consequences can all endanger the patient's life. Therefore, this invention proposes an extracorporeal circulation tubing connection locking device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an extracorporeal circulation pipeline connection locking device to solve the problem in the prior art where loosening is caused by improper tightening or external mechanical friction, and the consequences of pipeline loosening are very serious.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an extracorporeal circulation tubing connection locking device, including a main tube, a tube head and a tube body, wherein the bottom end of the main tube is connected to the tube head, the top end of the main tube is connected to the tube body, a locking mechanism is provided inside the tube body, and a puncture needle is inserted into the tube body, the main tube and the tube head in sequence from top to bottom.

[0006] A further improvement is made in that: the locking mechanism includes a sleeve, a conical head, a dividing groove, a movable sleeve, a threaded surface, and a conical groove. The bottom of the tube body is provided with a sleeve, the top of the sleeve is provided with a conical head, the top of the sleeve is provided with multiple dividing grooves distributed in a ring, the top of the tube body is provided with a movable sleeve, the movable sleeve is threadedly connected to the top of the tube body through the threaded surface, and the bottom of the movable sleeve is provided with a conical groove.

[0007] A further improvement is that the conical groove and the dividing groove are parallel vertically, the puncture needle penetrates through the interior of the movable sleeve and the clip, and the dividing groove is made of elastic plastic.

[0008] A further improvement is that a positioning block is fixedly connected to the bottom of the jacket, multiple locking blocks are provided on the outer side of the positioning block, and multiple locking grooves are provided at the bottom of the tube body, with the outer wall of the locking groove engaging with the inner wall of the locking block.

[0009] A further improvement is that a rotating sleeve is rotatably connected to the outer side of the main tube, and a rotating handle is fixedly connected to the outer side of the rotating sleeve, the rotating handle being U-shaped.

[0010] A further improvement is that an annular groove is provided on the outer side of the tube body, and the diameter of the main tube is smaller than the diameter of the tube body.

[0011] A further improvement is that the shape of the pipe head is designed to be wider at the top and narrower at the bottom, with the diameter of the top of the pipe head being larger than the diameter of the main pipe and the diameter of the bottom of the pipe head being smaller than the diameter of the main pipe.

[0012] The beneficial effects of this utility model are: the puncture needle passes through the interior of the movable sleeve and the clamp in sequence, the movable sleeve is twisted and moved downwards, the conical groove at the bottom of the movable sleeve squeezes the conical head at the top of the clamp to shrink inwards, and the conical head clamps the puncture needle to limit the puncture needle, so as to solve the problem in the prior art that the tube is loosened due to loosening or external mechanical friction, and the consequences are very serious once the tube is loosened. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the locking mechanism of this utility model;

[0015] Figure 3 This is a bottom view of the present invention.

[0016] In the diagram: 1. Main pipe; 2. Pipe head; 3. Pipe body; 4. Jacket; 5. Rotating handle; 6. Rotating sleeve; 7. Conical head; 8. Separating groove; 9. Movable sleeve; 10. Threaded surface; 11. Conical groove; 12. Positioning block; 13. Locking block; 14. Locking groove. Detailed Implementation

[0017] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0018] according to Figure 1 ,2 As shown in Figure 3, this embodiment proposes an extracorporeal circulation tubing connection locking device, including a main tube 1, a tube head 2, and a tube body 3. The bottom end of the main tube 1 is connected to the tube head 2, and the top end of the main tube 1 is connected to the tube body 3. The tube body 3 is provided with a locking mechanism. A puncture needle is inserted into the tube body 3, the main tube 1, and the tube head 2 sequentially from top to bottom. When using the device, the puncture needle is inserted from the top of the tube body 3, passes through the inside of the main tube 1, and then emerges from the bottom of the tube head 2. At this time, the locking mechanism locks the puncture needle inside the device to prevent the puncture needle from becoming loose.

[0019] The locking mechanism includes a sleeve 4, a conical head 7, a dividing groove 8, a movable sleeve 9, a threaded surface 10, and a conical groove 11. The sleeve 4 is located at the bottom of the tube body 3, and the conical head 7 is located at the top of the sleeve 4. Multiple dividing grooves 8 are distributed in a ring around the top of the sleeve 4. The movable sleeve 9 is located at the top of the tube body 3 and is threadedly connected to the top of the tube body 3 via the threaded surface 10. The conical groove 11 is located at the bottom of the movable sleeve 9, and its position is parallel to the dividing grooves 8. The puncture needle passes through the interior of the movable sleeve 9 and the clamp 4. The material of the dividing groove 8 is elastic plastic. The puncture needle passes through the interior of the movable sleeve 9 and the clamp 4 in sequence. The movable sleeve 9 is twisted and moved downward. The tapered groove 11 at the bottom of the movable sleeve 9 squeezes the tapered head 7 at the top of the clamp 4 and retracts it inward. The tapered head 7 clamps the puncture needle to limit its position. If the position of the puncture needle needs to be adjusted, the movable sleeve 9 is twisted and moved upward so that the movable sleeve 9 and the tapered head 7 are separated. At this time, the puncture needle can move in the device.

[0020] The bottom of the sleeve 4 is fixedly connected to a positioning block 12. The outer side of the positioning block 12 is provided with multiple locking blocks 13. The bottom of the tube body 3 is provided with multiple locking grooves 14. The outer wall of the locking groove 14 is engaged with the inner wall of the locking block 13. When assembling the locking mechanism, the sleeve 4 is first inserted into the bottom of the tube body 3, and the locking groove 14 at the bottom of the tube body 3 is engaged with the locking block 13 on the positioning block 12 to install the sleeve 4 inside the tube body 3. Then, the bottom end of the movable sleeve 9 is screwed into the top end of the tube body 3.

[0021] A rotating sleeve 6 is rotatably connected to the outer side of the main tube 1, and a rotating handle 5 is fixedly connected to the outer side of the rotating sleeve 6. The rotating handle 5 is U-shaped. The slot 14 is hinged to the main tube 1 through the rotating sleeve 6, and the rotating handle 5 is connected to the slot 14 as one piece. The rotating handle 5 can rotate with the main tube 1 as the center to adjust it to a suitable position. When in use, the finger is inserted into the inside of the rotating handle 5 to hold it, so that the medical personnel can grip the device more tightly.

[0022] The outer side of the pipe body 3 is provided with an annular groove, and the diameter of the main pipe 1 is smaller than the diameter of the pipe body 3.

[0023] The shape of the pipe head 2 is designed to be wider at the top and narrower at the bottom. The diameter of the top end of the pipe head 2 is larger than the diameter of the main pipe 1, and the diameter of the bottom end of the pipe head 2 is smaller than the diameter of the main pipe 1.

[0024] The extracorporeal circulation tubing is connected to a locking device. The puncture needle passes through the interior of the movable sleeve 9 and the clamp 4 in sequence. The movable sleeve 9 is twisted and moved downwards. The conical groove 11 at the bottom of the movable sleeve 9 squeezes the conical head 7 at the top of the clamp 4 inwards and uses the conical head 7 to clamp the puncture needle, thereby limiting the position of the puncture needle. If the position of the puncture needle needs to be adjusted, the movable sleeve 9 is twisted and moved upwards, so that the movable sleeve 9 and the conical head 7 are separated. At this time, the puncture needle can move in the device.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An extracorporeal circulation tubing connection locking device, comprising a main pipe (1), a pipe head (2), and a pipe body (3), characterized in that: The bottom end of the main tube (1) is connected to the tube head (2), and the top end of the main tube (1) is connected to the tube body (3). The tube body (3) is provided with a locking mechanism inside, and the puncture needle is inserted into the tube body (3), the main tube (1) and the tube head (2) from top to bottom in sequence. The locking mechanism includes a sleeve (4), a conical head (7), a partition groove (8), a movable sleeve (9), a threaded surface (10), and a conical groove (11). The bottom of the tube body (3) is provided with a sleeve (4), the top of the sleeve (4) is provided with a conical head (7), the top of the sleeve (4) is provided with a plurality of partition grooves (8) distributed in a ring, the top of the tube body (3) is provided with a movable sleeve (9), the movable sleeve (9) is threadedly connected to the top of the tube body (3) through the threaded surface (10), and the bottom of the movable sleeve (9) is provided with a conical groove (11).

2. The extracorporeal circulation tubing connection locking device according to claim 1, characterized in that: The conical groove (11) and the dividing groove (8) are parallel vertically, and the puncture needle passes through the interior of the movable sleeve (9) and the clip (4). The material of the dividing groove (8) is elastic plastic.

3. The extracorporeal circulation tubing connection locking device according to claim 1, characterized in that: The bottom of the sleeve (4) is fixedly connected to a positioning block (12), and the outer side of the positioning block (12) is provided with multiple locking blocks (13). The bottom of the tube body (3) is provided with multiple locking grooves (14), and the outer wall of the locking groove (14) is engaged with the inner wall of the locking block (13).

4. The extracorporeal circulation tubing connection locking device according to claim 1, characterized in that: The outer side of the main tube (1) is rotatably connected to a rotating sleeve (6), and the outer side of the rotating sleeve (6) is fixedly connected to a rotating handle (5), which is U-shaped.

5. The extracorporeal circulation tubing connection locking device according to claim 4, characterized in that: The outer side of the tube body (3) is provided with an annular groove, and the diameter of the main tube (1) is smaller than the diameter of the tube body (3).

6. The extracorporeal circulation tubing connection locking device according to claim 1, characterized in that: The shape of the pipe head (2) is designed to be wider at the top and narrower at the bottom. The diameter of the top of the pipe head (2) is greater than the diameter of the main pipe (1), and the diameter of the bottom of the pipe head (2) is smaller than the diameter of the main pipe (1).

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