Airway expansion device

Abstract

The utility model discloses an airway expansion device. The airway expansion device comprises a catheter, an inner rod, an expansion part and a clamping part, the expansion part is formed by combining at least three expansion heads with the same structure; the expansion head is of an arc-shaped structure and protrudes towards the opposite outer side; the middle of the expansion head is hinged to the connecting ring; according to the utility model, the tip-shaped head part is used for positioning the central position of the airway, then the clamping part is pulled to be close to the pull ring, the inner rod moves towards the far end relative to the catheter, the expansion head is opened while the connecting seat moves towards the far end under the pushing of the inner rod, and the airway is gradually expanded in the opening process. The utility model has the advantages of simple operation and high safety, can simplify the operation process and reduce the complexity of the operation, and can solve the problem in the prior art that the treatment cannot be carried out due to the absence of a special airway expansion device for the airway with the mutually attached inner walls or the extremely narrow airway.

Description

Technical fields:

[0001] This utility model relates to the field of medical equipment, specifically to an airway dilation device. Background technology:

[0002] Airway atresia is a common symptom in patients with respiratory diseases. It can be caused by congenital malformations, inflammation, tumors, or other factors. When airway atresia occurs, a patient's breathing is severely affected, requiring timely intervention.

[0003] Currently, the only option is to use a balloon to dilate the narrow airway; however, for airway obstruction, where the airway walls are pressed together, or for extremely narrow airways, there is no effective treatment available because there is no dedicated airway dilation device. Utility Model Content:

[0004] In order to solve the above problems, the purpose of this utility model is to provide an airway dilation device.

[0005] This utility model is implemented by the following technical solution:

[0006] An airway dilator includes a conduit, an inner rod, a dilator component, and a clamping part;

[0007] The inner rod is freely inserted into the conduit. The distal end of the inner rod is fixedly connected to the connecting seat. At least two sliding blocks are evenly arranged circumferentially on the connecting seat. A sliding groove is opened circumferentially at the distal end of the conduit in a number equal to and in position matching the sliding blocks. The length direction of the sliding groove is parallel to the axial direction of the conduit. The sliding blocks are slidably disposed in the sliding groove.

[0008] A connecting ring is fixedly provided at the distal end of the conduit;

[0009] The expansion component is composed of at least three expansion heads with the same structure, and the distal end of the combined expansion component is pointed; the expansion head has an arc-shaped structure and protrudes outward; the middle part of the expansion head is hinged to the connecting ring, a groove is provided at the proximal end of the expansion head, and a sliding seat is fixed on the connecting seat, the sliding seat being slidably disposed in the groove;

[0010] The proximal end of the catheter is fixedly connected to the clamping part; a through hole is provided in the clamping part, and the proximal end of the inner rod passes through the through hole and is fixedly connected to the push-pull rod, and the push-pull rod is slidably disposed in the clamping part.

[0011] Furthermore, several protrusions are provided on the opposite outer side of the expansion head.

[0012] Furthermore, a pull ring is provided on the push-pull rod.

[0013] Furthermore, the number of expansion heads is 3-4.

[0014] Advantages of this utility model:

[0015] This invention utilizes a pointed head to locate the center of the airway, and then pulls the clamping part to bring it closer to the pull ring, thereby moving the inner rod relative to the guide tube to the distal end. Under the push of the inner rod, the connecting seat moves to the distal end, and the dilator opens, gradually expanding the airway during the opening process.

[0016] This invention is simple to operate and highly safe. It can simplify the operation process and reduce the complexity of surgery. It has broad application prospects and market demand in the fields of medical equipment, respiratory therapy and airway management. It can solve the problem that existing technologies cannot treat airways with closely spaced or extremely narrow inner walls due to the lack of dedicated airway dilation devices. Attached image description:

[0017] Figure 1 This is a structural schematic diagram of this embodiment;

[0018] Figure 2 This is a schematic diagram of the expansion component in this embodiment;

[0019] Figure 3 This is a schematic diagram of the clamping part in this embodiment.

[0020] In the figure: 1. Guide tube; 2. Inner rod; 3. Expansion component; 31. Expansion head; 32. Protrusion; 4. Clamping part; 5. Connecting seat; 6. Sliding block; 7. Sliding groove; 8. Connecting ring; 9. Through hole; 10. Push-pull rod; 11. Pull ring; 12. Slide; 13. Limiting groove; 14. Limiting block; 15. Sliding groove; 16. Sliding seat. Detailed implementation method:

[0021] like Figures 1 to 3 The airway dilator shown includes a conduit 1, an inner rod 2, a dilator 3, and a clamping part 4;

[0022] The inner rod 2 is freely inserted into the conduit 1. The distal end of the inner rod 2 is fixedly connected to the connecting seat 5. Two sliding blocks 6 are evenly arranged on the connecting seat 5 along the circumference. A sliding groove 7 with the same number and position as the sliding blocks 6 is opened along the circumference at the distal end of the conduit 1. The length direction of the sliding groove 7 is parallel to the axial direction of the conduit 1. The sliding blocks 6 are slidably disposed in the sliding groove 7.

[0023] A connecting ring 8 is fixedly provided at the distal end of the catheter 1; the expansion component 3 is composed of four expansion heads 31 with the same structure, and the distal end of the combined expansion component 3 is pointed; the expansion head 31 has an arc-shaped structure and protrudes to the opposite side; the middle part of the expansion head 31 is hinged to the connecting ring 8, and a sliding groove 15 is provided at the proximal end of the expansion head 31. A sliding seat 16 is fixedly provided on the connecting seat 5, and the sliding seat 16 is slidably disposed in the sliding groove 15; a number of protrusions 32 are provided on the opposite side of the expansion head 31.

[0024] The proximal end of the conduit 1 is fixedly connected to the clamping part 4. A through hole 9 is provided inside the distal end of the clamping part 4. The proximal end of the inner rod 2 passes through the through hole 9 and is fixedly connected to the push-pull rod 10. The push-pull rod 10 is slidably disposed within the clamping part 4. Specifically, a slide 12 is provided inside the proximal end of the clamping part 4. The slide 12 communicates with the through hole 9, and a limiting groove 13 is provided on the side wall of the slide 12. A limiting block 14 matching the limiting groove 13 is provided on the side wall of the push-pull rod 10. A pull ring 11 is provided on the push-pull rod 10.

[0025] Working principle:

[0026] When performing minimally invasive airway closure surgery using this embodiment, the endoscopic forceps are inserted into the body under endoscopy to reach the location of the airway closure. The index and middle fingers are held in the clamping part 4, and the thumb is placed inside the pull ring 11. In this embodiment, since the tip of the dilator 31 forms a pointed shape after closing, the pointed head is used to locate the center of the airway. Then, the clamping part 4 is pulled, causing it to move closer to the pull ring 11, thereby moving the inner rod 2 distally relative to the catheter 1. Under the push of the inner rod 2, the connecting seat 5 moves distally, and the dilator 31 opens, gradually dilating the airway during the opening process. Since the sliding seat 16 is slidably disposed within the sliding groove 15, it is not restricted by the connecting seat 5 when the dilator 31 opens, thus allowing the dilator 31 to open smoothly.

[0027] Conversely, when the clamping part 4 is pushed with the index and middle fingers, the clamping part 4 moves away from the pull ring 11, and the inner rod 2 moves proximally relative to the guide tube 1. Under the pull of the inner rod 2, the connecting seat 5 moves proximally, and the expansion head 31 closes. After the expansion head 31 closes, the expansion component 3 is moved to expand the next locked area.

[0028] In this embodiment, by providing several protrusions 32 on the outer side of the dilator 31, the friction between the dilator 31 and the inner wall of the airway can be increased, preventing the dilator 31 from sliding against the inner wall of the airway, thereby ensuring that the dilator 31 can achieve a good dilution effect.

[0029] Since different airways have different diameters, the arm length of the dilator 31 in this embodiment can be set in various specifications to adapt to different airways. Different specifications of arm length have different opening diameters, thereby meeting the needs of different airways. Before performing surgery, doctors can select instruments of the appropriate specifications according to the diameter of the airway to be treated.

[0030] The airway dilation device of this invention has broad application prospects and market demand in the fields of medical equipment, respiratory therapy and airway management. It can solve the problem that existing technologies cannot treat airways with closely spaced inner walls or extremely narrow airways due to the lack of dedicated airway dilation devices.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An airway dilator, characterized in that, Includes a guide tube, inner rod, expansion component, and clamping part; The inner rod is freely inserted into the conduit. The distal end of the inner rod is fixedly connected to the connecting seat. At least two sliding blocks are evenly arranged circumferentially on the connecting seat. A sliding groove is opened circumferentially at the distal end of the conduit in a number equal to and in position matching the sliding blocks. The length direction of the sliding groove is parallel to the axial direction of the conduit. The sliding blocks are slidably disposed in the sliding groove. A connecting ring is fixedly provided at the distal end of the conduit; The expansion component is composed of at least three expansion heads with the same structure, and the distal end of the combined expansion component is pointed; the expansion head has an arc-shaped structure and protrudes outward; the middle part of the expansion head is hinged to the connecting ring, a groove is provided at the proximal end of the expansion head, and a sliding seat is fixed on the connecting seat, the sliding seat being slidably disposed in the groove; The proximal end of the catheter is fixedly connected to the clamping part; a through hole is provided in the clamping part, and the proximal end of the inner rod passes through the through hole and is fixedly connected to the push-pull rod, and the push-pull rod is slidably disposed in the clamping part.

2. The airway dilation device according to claim 1, characterized in that, Several protrusions are provided on the opposite outer side of the expansion head.

3. The airway dilation device according to claim 1, characterized in that, A pull ring is provided on the push-pull rod.

4. The airway dilator according to claim 1, characterized in that, The number of expansion heads is 3-4.

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