Barb type guide wire for treating plastic bronchitis

Abstract

The barb type guide wire comprises a sleeve with one end sealed and a guide wire body arranged in the sleeve, one end of the sleeve is connected with a first holding part, and the end, arranged outside the sleeve, of the guide wire body is connected with a second holding part. The other end of the guide wire is connected with the inner wall of the sleeve through a miniature pressing self-locking buckle, a barb assembly is installed on the outer wall of the end, arranged in the sleeve, of the guide wire and comprises barbs which are symmetrically arranged, the barbs are arranged in containing holes formed in a sleeve body, one end of each barb is hinged to the inner wall of the sleeve, and the other end of each barb is hinged to the outer wall of the sleeve. The barbs are controlled to be unfolded through a pushing assembly connected to the guide wire. According to the bronchoalveolar lavage device, the sleeve can be directly inserted into a molded object, then the guide wire is pushed, the barbs are unfolded to hook the molded object and then pulled back, the molded object can be completely taken out, the molded object is prevented from being broken and retained in a far-end bronchus, ventilation is prevented from being affected, and the risk of bronchoalveolar lavage caused by breakage of the molded object is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a barbed guide wire for the treatment of plastic bronchitis. Background Art

[0002] Pediatric plastic bronchitis (PB) is a rare but life-threatening disease, which is characterized by the formation of mucous casts within the tracheobronchial tree, resulting in local or extensive obstruction of the bronchi, causing partial or complete ventilation dysfunction of the lungs, and in severe cases, respiratory insufficiency or even asphyxia. For pediatric plastic bronchitis, after finding the lesion location under the guidance of pulmonary imaging, bronchoscopy is required to remove the cast.

[0003] Currently, the most effective and direct treatment method for pediatric PB is to directly remove the plastic endocast obstructing the airway by bronchoscopy. However, during the clamping process, the thinner part at the distal end of the cast is prone to breakage and retention in the distal bronchi, affecting lung ventilation. Therefore, subsequent bronchoalveolar lavage is required to drain the broken casts remaining in the bronchi. However, bronchoalveolar lavage may also bring new complications and risks, and the lung injury caused by it is not yet clear. Summary of the Invention

[0004] The purpose of the present invention is to provide a barbed guide wire for the treatment of plastic bronchitis to solve the above problems.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A barbed guide wire for the treatment of plastic bronchitis according to the present invention includes a sleeve with one end sealed and a guide wire placed inside the sleeve. A first holding part is connected to the open end of the sleeve, a second holding part is connected to the end of the guide wire outside the sleeve, the other end of the guide wire and the inner wall of the sealed end of the sleeve are connected by a micro-press self-locking buckle, and a plurality of groups of barbed components are installed on the outer wall of the end of the guide wire placed inside the sleeve. Each barbed component includes two symmetrically arranged barbs, the barbs are placed in the placement holes opened on the body of the sleeve, one end of the barbs is hinged to the inner wall of the sleeve, and the barbs are controlled to unfold by a pushing component connected to the guide wire.

[0007] Further, the second holding part is in a circular ring shape and is hinged to the end of the guide wire.

[0008] Further, 7 groups of the barbed components are connected to the outer wall of the end of the guide wire, and the distance between adjacent two groups of the barbed components is equal.

[0009] Further, a plurality of barbs are provided on one end face of the barbs away from the sleeve seal.

[0010] Further, the pushing assembly includes a push plate connected to the guide wire. Two connecting blocks corresponding to the positions of the two barbs are connected to the push plate. A first push rod is connected to the connecting block. After the other end of the first push rod is inserted into a special-shaped tube with a "J" shape, it is connected to a first baffle. The special-shaped tube includes a long straight section, an arc section, and a short straight section. The first baffle is slidably connected in the long straight section. A first spring is connected to one end face of the first baffle away from the connecting block. The first spring is placed in the arc section, and the other end of the first spring is connected to a second baffle slidably connected in the short straight section. A second push rod is connected to one end face of the second baffle away from the first spring. The other end of the second push rod is placed outside the special-shaped tube and connected to a push block. The push block abuts against the end of the barb.

[0011] Further, both the first baffle and the second baffle are slidably connected in the special-shaped tube through slide rails installed on the inner wall of the special-shaped tube.

[0012] Further, a jack is opened on the inner wall of the placement hole. The jack is communicated with a cavity opened in the tube wall of the sleeve. A third baffle is inserted into the jack. One end of the third baffle placed outside is placed inside the barb. The other end of the third baffle is placed in the cavity and connected to a pressing plate. A second spring is provided between the pressing plate and the inner wall of the cavity.

[0013] Further, the sleeve is a flexible tube.

[0014] Further, an installation groove is opened on the outer wall of one end of the sleeve seal. A sensor is installed in the installation groove. The outer wall of the sensor fits with the arc surface on one end of the sleeve seal.

[0015] Further, the sensor is connected to an external control end through a wire embedded in the sleeve.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0017] The present invention can directly insert the sleeve into the plastic object, and then by pushing the guide wire, a plurality of barbs are unfolded to hook the plastic object and then pulled back, so that the plastic object can be quickly taken out completely, avoiding the fracture of the plastic object and its retention in the distal bronchus, preventing the impact on ventilation, and reducing the risk of bronchoalveolar lavage due to the fracture of the plastic object. Description of the Drawings

[0018] The present invention will be further described below in conjunction with the description of the drawings.

[0019] Figure 1 Schematic diagram of the barbed guide wire structure for the treatment of plastic bronchitis according to the present invention;

[0020] Figure 2 Cross-sectional view of the barbed guide wire for the treatment of plastic bronchitis according to the present invention;

[0021] Figure 3 is Figure 2 Enlarged view of part A in

[0022] Figure 4 is Figure 2 Enlarged view of part B in

[0023] Figure 5 is Figure 2 Enlarged view of part C in

[0024] Figure 6 Front view of the spike installation;

[0025] Explanation of reference numerals: 1, sleeve; 2, guide wire; 3, first holding part; 4, second holding part; 5, micro pressing self-locking buckle; 6, barbs; 7, placement hole; 8, spikes; 9, push plate; 10, connecting block; 11, first push rod; 12, special-shaped tube; 13, first baffle; 14, first spring; 15, second baffle; 16, second push rod; 17, push block; 18, slide rail; 19, jack; 20, cavity; 21, third baffle; 22, pressing plate; 23, second spring; 24, installation groove; 25, inductor. Detailed implementation manners

[0026] As Figures 1-6 shown, a barbed guide wire for the treatment of plastic bronchitis includes a sleeve 1 with one end sealed and a guide wire 2 placed inside the sleeve 1, and the sleeve 1 is a flexible tube.

[0027] A first holding part 3 is connected to the open end of the sleeve 1, and a second holding part 4 is connected to the end of the guide wire 2 outside the sleeve 1. The second holding part 4 is in a circular ring shape and is hinged to the end of the guide wire 2.

[0028] The other end of the guide wire 2 and the inner wall of the sealed end of the sleeve 1 are connected by a micro pressing self-locking buckle 5.

[0029] One end of the guide wire 2 placed inside the sleeve 1 is provided with 7 groups of barbed components on the outer wall. The distance between two adjacent barbed components is equal. The barbed component includes two symmetrically arranged barbs 6. The barbs 6 are placed in the placement holes 7 opened on the body of the sleeve 1. One end of the barb 6 is hinged to the inner wall of the sleeve 1. A number of spikes 8 are provided on the end face of the barb 6 away from the sealed end of the sleeve 1.

[0030] The barb 6 is controlled to unfold by a pushing component connected to the guide wire 2.

[0031] The pushing component includes a push plate 9 connected to the guide wire 2. Two connecting blocks 10 corresponding to the positions of the two barbs 6 are respectively connected to the push plate 9. A first push rod 11 is connected to the connecting block 10. After the other end of the first push rod 11 is inserted into a special-shaped tube 12 with a "J" shape, a first baffle 13 is connected. The special-shaped tube 12 includes a long straight section, an arc section and a short straight section. The first baffle 13 is slidably connected in the long straight section. A first spring 14 is connected to the end face of the first baffle 13 away from the connecting block 10. The first spring 14 is placed in the arc section, and the other end of the first spring 14 is connected to a second baffle 15 slidably connected in the short straight section. A second push rod 16 is connected to the end face of the second baffle 15 away from the first spring 14. The other end of the second push rod 16 is placed outside the special-shaped tube 12 and connected to a push block 17. The push block 17 abuts against the end of the barb 16.

[0032] Both the first baffle 13 and the second baffle 15 are slidably connected in the special-shaped tube 12 through slide rails 18 installed on the inner wall of the special-shaped tube 12.

[0033] A jack 19 is opened on the inner wall of the placement hole 7. The jack 19 is communicated with a cavity 20 opened in the tube wall of the sleeve 1. A third baffle 21 is inserted into the jack 19. One end of the third baffle 20 placed outside is placed inside the barb 6. The other end of the third baffle 21 is placed in the cavity 20 and connected to a pressing plate 22. A second spring 23 is provided between the pressing plate 22 and the inner wall of the cavity 20.

[0034] An installation groove 24 is opened on the outer wall of the sealed end of the sleeve 1. An inductor 25 is installed in the installation groove 24. The outer wall of the inductor 25 fits with the arc surface at the sealed end of the sleeve 1. The inductor 25 is connected to an external control end through a wire embedded in the sleeve 1. Through the above inductor 25, the gas flow direction can be sensed, and the position of the end can also be judged through the inductor 25.

[0035] The operation process of the present invention is as follows:

[0036] During use, insert the sleeve 1 into the plastic object, then hold the first holding part 3 with one hand and push the second holding part 4 to move the entire guide wire 2 forward until the end of the guide wire 2 is clamped by the micro-pressing self-locking buckle 5 between the sealed end of the sleeve 1. While the guide wire 2 is moving, make the push plate 9 push the first push rod 11, and through the first spring 14, push the second push rod 16 to move towards the end of the barbs 6, so that the push block 17 pushes the barbs 6 to rotate. At this time, since the third baffle 21 is not pressed by the barbs 6, it will come out of the insertion hole 19 and block the placement hole 7 to prevent the plastic object from entering the sleeve 1. When the barbs 6 are unfolded and inserted into the plastic object, pull the sleeve 1 outwards to bring out the plastic object through the barbs 6.

[0037] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A barbed guide wire for the treatment of plastic bronchitis, characterized in that: It includes a cannula (1) with one end sealed and a guide wire (2) placed inside the cannula (1). A first gripping portion (3) is connected to the open end of the cannula (1), and a second gripping portion (4) is connected to the end of the guide wire (2) outside the cannula (1). The other end of the guide wire (2) and the inner wall of the sealed end of the cannula (1) are connected by a micro pressing self-locking buckle (5). A number of groups of barbed components are installed on the outer wall of the end of the guide wire (2) inside the cannula (1). Each barbed component includes two symmetrically arranged barbs (6). The barbs (6) are placed in the placement holes (7) opened on the body of the cannula (1). One end of the barb (6) is hinged to the inner wall of the cannula (1), and the barb (6) is controlled to unfold by a pushing component connected to the guide wire (2).

2. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, characterized in that: The second gripping portion (4) is in a circular ring shape and is hinged to the end of the guide wire (2).

3. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, characterized in that: 7 groups of the barbed components are connected to the outer wall of the end of the guide wire (2), and the spacing between adjacent two groups of the barbed components is equal.

4. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, characterized in that: A number of spikes (8) are provided on the end face of the barb (6) away from the sealed end of the cannula (1).

5. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, wherein: The pushing component includes a push plate (9) connected to the guide wire (2). Two connecting blocks (10) corresponding to the positions of the two barbs (6) respectively are connected to the push plate (9). A first push rod (11) is connected to the connecting block (10). After the other end of the first push rod (11) is inserted into a special-shaped tube (12) in the shape of "J", a first baffle (13) is connected. The special-shaped tube (12) includes a long straight section, an arc section and a short straight section. The first baffle (13) is slidably connected in the long straight section. A first spring (14) is connected to the end face of the first baffle (13) away from the connecting block (10). The first spring (14) is placed in the arc section, and the other end of the first spring (14) is connected to a second baffle (15) slidably connected in the short straight section. A second push rod (16) is connected to the end face of the second baffle (15) away from the first spring (14). The other end of the second push rod (16) is placed outside the special-shaped tube (12) and is connected to a push block (17). The push block (17) abuts against the end of the barb (16).

6. The barbed guide wire for the treatment of plastic bronchitis according to claim 5, characterized in that: Both the first baffle (13) and the second baffle (15) are slidably connected in the special-shaped tube (12) through slide rails (18) installed on the inner wall of the special-shaped tube (12).

7. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, characterized in that: An insertion hole (19) is formed in the inner wall of the placement hole (7). The insertion hole (19) communicates with a cavity (20) formed in the wall of the sleeve (1). A third baffle (21) is inserted into the insertion hole (19). One end of the third baffle (20) facing the outside is placed inside the barb (6). The other end of the third baffle (21) is placed inside the cavity (20) and is connected to a pressing plate (22). A second spring (23) is provided between the pressing plate (22) and the inner wall of the cavity (20).

8. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, wherein: The sleeve (1) is a flexible tube.

9. The barbed guide wire for the treatment of plastic bronchitis according to claim 1, wherein: An installation groove (24) is formed in the outer wall of the sealed end of the sleeve (1). An inductor (25) is installed in the installation groove (24). The outer wall of the inductor (25) fits the arc surface at the sealed end of the sleeve (1).

10. The barbed guide wire for the treatment of plastic bronchitis according to claim 9, characterized in that: The inductor (25) is connected to an external control end through a wire embedded inside the sleeve (1).

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