Device capable of being used for taking out airway stent

Abstract

The utility model discloses a device capable of being used for taking out an airway stent, and belongs to the technical field of medical instruments, the device comprises an outer tube, an inner tube and a clamping mechanism, the inner tube penetrates through the outer tube in a sliding mode, the clamping mechanism is arranged at the inner end of the outer tube, and the clamping mechanism comprises a fixing plate, a supporting rod, a clamping piece and a spring. The fixing plate is fixedly installed in the outer pipe, the supporting rod is fixedly connected to the center of the fixing plate, the number of the clamping pieces is four, the four clamping pieces are hinged to the periphery of the supporting rod, the springs are fixedly connected between the clamping pieces and the supporting rod, the inner end of the inner pipe is fixedly connected with four annularly-distributed abutting push rods, and the abutting push rods are fixedly connected to the outer end of the inner pipe. Through holes are formed in the periphery of the fixing plate, the abutting push rods penetrate through the through holes in a sliding mode, and one ends of the abutting push rods abut against the clamping pieces. And through the arrangement of the clamping mechanism, the airway stent can be quickly taken out from the airway, the operation is convenient, and the operation difficulty is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a device that can be used for removing an airway stent. Background Art

[0002] With the increasing incidence of malignant tumors and the prolonged survival of patients, the number of cases of malignant airway stenosis is increasing. Severe large airway stenosis can cause ventilation difficulties and even lead to airway obstruction and asphyxiation, often requiring the immediate deployment of airway stents to open the airway.

[0003] The airway stent needs to be removed from the airway after use. Currently, when removing the airway stent, a biopsy forceps is generally used. The biopsy forceps needs to be used to clamp one side of the airway stent, and then the airway stent is rotated so that the airway stent rotates around the end of the biopsy forceps, and then the airway stent is pulled out. The operation is cumbersome and difficult. Utility Model Content

[0004] The purpose of the present utility model is to provide a device that can be used for removing an airway stent, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for removing an airway stent, comprising an outer tube, an inner tube, and a clamping mechanism, wherein the inner tube slides through the outer tube, the clamping mechanism is provided at the inner end of the outer tube, the clamping mechanism comprises a fixing plate, a support rod, a clip, and a spring, the fixing plate being fixedly installed in the outer tube, the support rod being fixedly connected at the center of the fixing plate, the clips being provided with four clips, the four clips being hinged to the four sides of the support rod, and the spring being fixedly connected between the clips and the support rod;

[0006] The inner end of the inner tube is fixedly connected with four annularly distributed push rods. Through holes are opened on all four sides of the fixed plate. The push rods slide through the through holes, and one end of the push rods abuts against the clip.

[0007] As a preferred embodiment, the outer end of the outer tube is fixedly sleeved with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with anti-slip grooves.

[0008] As a preferred embodiment, a scale bar is provided on the surface of the outer end of the inner tube.

[0009] As a preferred embodiment, a camera is fixedly mounted on one end of the support rod away from the fixing plate.

[0010] As a preferred embodiment, an internal thread connection groove is provided at the outer end of the inner tube.

[0011] As a preferred embodiment, a plurality of ventilation holes are provided inside the fixing plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The device can be used for removing an airway stent. By setting a clamping mechanism, when in use, one only needs to hold the outer tube and insert it along the patient's airway. When the clamping mechanism reaches the airway stent, the inner tube is pushed inward, so that the inner tube drives the push rod to slide along the through hole, so that the push rod pushes the clip, so that the clip moves closer to the support rod. The four clips cooperate with the support rod to clamp the four sides of the airway stent at the same time. Then, the airway stent can be removed by simply pulling out the outer tube. The operation is convenient and easy.

[0014] The device, which can be used for removing an airway stent, has an internal threaded connection groove and a vent hole. Before use, the inner tube can be connected to an oxygen supply device such as a ventilator through the internal threaded connection groove, and the patient can be assisted to breathe normally through the inner tube and the vent hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the clamping mechanism of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the push rod of the utility model.

[0019] In the figure: 1. Outer tube; 11. Anti-slip sleeve; 2. Inner tube; 21. Push rod; 22. Scale bar; 23. Internal thread connection groove; 3. Clamping mechanism; 31. Fixing plate; 32. Support rod; 33. Clip; 34. Spring; 35. Through hole; 36. Camera; 37. Vent. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following examples are intended to illustrate the present invention and are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention based on the concept of the present invention fall within the scope of protection claimed by the present invention.

[0022] See also Figure 1-4The utility model provides a device for removing an airway stent, comprising an outer tube 1, an inner tube 2 and a clamping mechanism 3. The outer end of the outer tube 1 is fixedly sleeved with an anti-slip sleeve 11, and the surface of the anti-slip sleeve 11 is provided with anti-slip grooves. By providing the anti-slip sleeve 11, it is convenient to hold the outer tube 1, which can prevent the hand from sliding and improve the safety of operation; the inner tube 2 slides through the outer tube 1, and the clamping mechanism 3 is arranged at the inner end of the outer tube 1. The clamping mechanism 3 includes a fixing plate 31, a support rod 32, a clip 33 and a spring 34. The fixing plate 31 is fixedly installed in the outer tube 1, and the support rod 32 is fixedly connected to the center of the fixing plate 31. There are four clips 33, and the four clips 33 are respectively hinged on the four sides of the support rod 32. The spring 34 is fixedly connected between the clip 33 and the support rod 32. The inner tube 2 The end is fixedly connected with four annularly distributed push rods 21, and through holes 35 are opened around the fixing plate 31. The push rods 21 slide through the through holes 35, and one end of the push rods 21 abuts against the clip 33. The surface of the outer end of the inner tube 2 is provided with a scale bar 22. Through the setting of the clamping mechanism 3, when in use, it is only necessary to hold the outer tube 1 and insert it along the patient's airway. When the clamping mechanism 3 reaches the airway stent, it pushes the inner tube 2 inward, so that the inner tube 2 drives the push rods 21 to slide along the through holes 35, so that the push rods 21 push the clip 33, so that the clip 33 moves closer to the support rod 32, and the four clips 33 are used to cooperate with the support rod 32 to clamp the airway stent at the same time. Then, it is only necessary to pull out the outer tube 1 to remove the airway stent. The operation is convenient and the operation difficulty is low.

[0023] Furthermore, a camera 36 is fixedly mounted on one end of the support rod 32 away from the fixing plate 31 . By setting up the camera 36 , the situation in the patient's airway can be observed.

[0024] Furthermore, an internal threaded connecting groove 23 is provided at the outer end of the inner tube 2, and a plurality of ventilation holes 37 are provided inside the fixing plate 31. Through the arrangement of the internal threaded connecting groove 23 and the ventilation holes 37, before use, the inner tube 2 can be connected to an oxygen supply device such as a ventilator through the internal threaded connecting groove 23, and the patient can be assisted to breathe normally through the inner tube 2 and the ventilation holes 37.

[0025] The working principle and usage process of the present invention are as follows: First, when in use, you only need to hold the outer tube 1 and insert it along the patient's airway, and observe the internal situation through the camera 36. When the clamping mechanism 3 reaches the airway stent, it pushes the inner tube 2 inward, so that the inner tube 2 drives the push rod 21 to slide along the through hole 35, so that the push rod 21 pushes the clip 33, so that the clip 33 moves closer to the support rod 32, and uses the four clips 33 to cooperate with the support rod 32 to clamp the four sides of the airway stent at the same time. Then, you only need to pull out the outer tube 1 to take out the airway stent. The operation is convenient and has low difficulty.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing an airway stent, comprising an outer tube (1), an inner tube (2) and a clamping mechanism (3), characterized in that: The inner tube (2) slides through the outer tube (1); the clamping mechanism (3) is arranged at the inner end of the outer tube (1); the clamping mechanism (3) comprises a fixing plate (31), a support rod (32), a clamping piece (33) and a spring (34); the fixing plate (31) is fixedly installed in the outer tube (1); the support rod (32) is fixedly connected to the center of the fixing plate (31); there are four clamping pieces (33); the four clamping pieces (33) are respectively hinged on the four sides of the support rod (32); and the spring (34) is fixedly connected between the clamping piece (33) and the support rod (32); The inner end of the inner tube (2) is fixedly connected with four annularly distributed push rods (21), and the fixing plate (31) is provided with through holes (35) on all sides. The push rods (21) slide through the through holes (35), and one end of the push rods (21) abuts against the clamping sheet (33).

2. A device for removing an airway stent according to claim 1, characterized in that: The outer end of the outer tube (1) is fixedly sleeved with an anti-slip sleeve (11), and the surface of the anti-slip sleeve (11) is provided with anti-slip patterns.

3. A device for removing an airway stent according to claim 1, characterized in that: The surface of the outer end of the inner tube (2) is provided with a scale bar (22).

4. A device for removing an airway stent according to claim 1, characterized in that: A camera (36) is fixedly mounted on one end of the support rod (32) away from the fixing plate (31).

5. A device for removing an airway stent according to claim 1, characterized in that: An internal thread connection groove (23) is formed at the outer end of the inner tube (2).

6. A device for removing an airway stent according to claim 1, characterized in that: A plurality of ventilation holes (37) are provided inside the fixing plate (31).

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