Fiber bronchoscope guiding device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a fiber bronchoscope guiding device. Comprising a three-way pipe, one end of the three-way pipe is provided with an upper cover, the middle of the upper cover is provided with a guide hole for inserting a branch air pipe, and the upper end of the upper cover is provided with a branch air pipe sealing mechanism; the branch air pipe sealing mechanism comprises a positioning sleeve I and a positioning sleeve II which are arranged up and down, an annular boss is arranged at the upper end of the positioning sleeve II, a second stepped hole is coaxially formed in the inner side of the annular boss, a rubber pad II is fixedly arranged in the second stepped hole, the upper end of the rubber pad II extends upwards out of the second stepped hole, and a rubber pad I is fixedly arranged in the first stepped hole; and special-shaped through holes are formed in the middle parts of the rubber pad I and the rubber pad II. When the rubber pad I and the rubber pad II are in the same phase, the branch air pipe can freely slide up and down from the large end of the through hole; when sealing is needed, the rubber pad I is rotated by 180 degrees, the branch air pipe is limited between the small end of the rubber pad I and the small end of the rubber pad II, and sealing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, and more specifically to a fiberbronchoscope guiding device. Background Art

[0002] In the field of modern medicine, fiberoptic bronchoscope has become an indispensable clinical examination and treatment tool. It has extremely high practical value and superiority in the study of bronchial and lung diseases and postoperative examination. The working principle of fiberoptic bronchoscope is to transmit light into the respiratory tract through a soft and flexible fiberoptic light guide lens to observe the condition of the lesion in real time.

[0003] During bronchoscope intubation, a three-way tube is usually used. The Chinese utility model patent with application number 2023213340650 discloses a bronchoscope guiding device. Although the device can change the central aperture of the sealing ring to facilitate bronchial movement, it has a complex structure, high production and use costs, and is not easy to promote on a large scale.

[0004] Therefore, it is necessary to improve the prior art. Utility Model Content

[0005] In order to overcome the deficiencies in the prior art, a low-cost and easy-to-use fiberbronchoscope guiding device is provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A fiber bronchoscope guiding device comprises a three-way tube, one end of which is provided with an upper cover, the middle of which is provided with a guide hole for inserting a bronchus, and the upper end of which is provided with a bronchial sealing mechanism;

[0008] The bronchial sealing mechanism comprises a positioning sleeve I and a positioning sleeve II arranged in an upper and lower manner, wherein the positioning sleeve I and the positioning sleeve II are both upper and lower through structures, a first step hole is arranged at the lower end of the positioning sleeve I, an inner side wall of the first step hole is arranged with an internal thread, an annular boss is arranged at the upper end of the positioning sleeve II, an outer side wall of the annular boss is arranged with an external thread matching the internal thread, a second step hole is arranged coaxially on the inner side of the annular boss, a rubber pad II is fixedly arranged in the second step hole, and the upper end of the rubber pad II extends upward out of the second step hole;

[0009] A rubber pad I is fixedly arranged in the first step hole, and the middle of the rubber pad I and the rubber pad II are both provided with special-shaped through holes. When the phase difference between the rubber pad I and the rubber pad II is 180°, the superimposed projections of the rubber pad I and the rubber pad II in the vertical direction are concentric circular rings.

[0010] Preferably, the profile of the through hole includes a large end, a small end and a connecting section connecting the large end and the small end, the small end and the large end are both semicircular in shape, and the width of the connecting section is the same as the diameter of the small end.

[0011] Preferably, the upper end of the upper cover is a threaded end, and the lower end of the positioning sleeve II is provided with an internal thread that is threadably connected to the upper cover.

[0012] Preferably, a support sheet I extending downward is provided on one side of the through hole of the rubber pad I, and a support sheet II extending upward is provided on one side of the through hole of the rubber pad II, and the inner sides of the support sheets I and II are aligned with the inner wall of the small end.

[0013] Preferably, the three-way pipe includes a straight pipe and a branch pipe arranged at an angle on one side of the straight pipe, and a curved air guide pipe is arranged at the lower end of the straight pipe.

[0014] Preferably, a bite portion is provided on the straight tube.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model realizes sealing by the cooperation of two rubber pads. When the rubber pads I and II are in the same phase, the bronchus can slide freely up and down from the large end of the through hole. When sealing is required, the rubber pad I is rotated 180° and the rubber pads I and II are fitted together, and the bronchus is limited to between the small ends of the rubber pads I and II. The diameter of the small end is the same as or slightly smaller than the outer diameter of the bronchus, so as to realize sealing.

[0017] 2. The rubber pad I and the rubber pad II of the utility model are respectively arranged on the positioning sleeve I and the positioning sleeve II. The positioning sleeve I and the positioning sleeve II are connected by threads. When the positioning sleeve I rotates relative to the positioning sleeve II, the rubber pad I can be driven to rotate synchronously and fit with the rubber pad II.

[0018] 3. The utility model is provided with a curved airway tube, which can be conveniently inserted into the patient's mouth, thereby improving the intubation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion of the bronchial sealing mechanism;

[0022] Figure 3 is a cross-sectional schematic diagram of a bronchial sealing mechanism;

[0023] Figure 4It is a schematic diagram of the structure of rubber pad I;

[0024] Figure 5 This is a top view when the phase difference between rubber pad II and rubber pad I is 180°.

[0025] In the figure: 1- three-way pipe, 101- straight pipe, 102- branch pipe, 103- bite part, 2- upper cover, 201- guide hole, 3- bronchial sealing mechanism, 301- positioning sleeve I, 302- positioning sleeve II, 303- first step hole, 304- annular boss, 305- external thread, 306- second step hole, 307- rubber pad II, 308- rubber pad I, 309- through hole, 310- large end, 311- small end, 312- connecting section, 313- support sheet I, 314- support sheet II, 4- air guide tube. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0027] like Figures 1 to 5 As shown, a fiber bronchoscope guiding device includes a three-way tube 1, an upper cover 2 is arranged at one end of the three-way tube 1, a guide hole 201 for inserting the bronchus is arranged in the middle of the upper cover 2, and the diameter of the guide hole 201 is larger than the outer diameter of the bronchus.

[0028] In order to facilitate the sealing of the bronchus, a bronchial sealing mechanism 3 is provided at the upper end of the upper cover 2. The bronchial sealing mechanism 3 includes a positioning sleeve Ⅰ301 and a positioning sleeve Ⅱ302 arranged upper and lower. The positioning sleeve Ⅰ301 and the positioning sleeve Ⅱ302 are both upper and lower through structures. The lower end of the positioning sleeve Ⅰ301 is provided with a first step hole 303, a rubber pad Ⅰ308 is provided in the first step hole 303, and the inner side wall of the first step hole 303 is provided with an internal thread.

[0029] The upper end of the positioning sleeve II 302 is provided with an annular boss 304, and the outer wall of the annular boss 304 is provided with an outer thread 305 that matches the inner thread. The positioning sleeve I 301 is threadedly connected to the upper end of the positioning sleeve II 302. A second step hole 306 is coaxially provided inside the annular boss 304, and a rubber pad II 307 is bonded in the second step hole 306. The upper end of the rubber pad II 307 extends upward outside the second step hole 306. When the positioning sleeve I 301 and the positioning sleeve II 302 rotate in a direction close to each other, the rubber pad II 307 and the rubber pad I 308 fit together.

[0030] A special-shaped through hole 309 is provided in the middle of the rubber pad I 308 and the rubber pad II 307. The outline of the through hole 309 is composed of a large end 310, a small end 311, and a connecting section 312 which are connected to each other. The small end 311 and the large end 310 are both semicircular in shape. The connecting section 312 connects the large end 310 and the small end 311. The width of the connecting section 312 is the same as the diameter of the small end 311. The diameter of the small end 311 is the same as the outer diameter of the bronchus. The bronchus can move from the small end 311 to the large end 310 through the connecting section 312. Since the diameter of the large end 310 is larger than the diameter of the bronchus, the bronchus can move relative to the rubber pad I 308 or the rubber pad II 307.

[0031] When the rubber pad I 308 and the rubber pad II 307 are 180° out of phase, the two small ends of the rubber pad I 308 and the rubber pad II 307 form a complete circle and limit and seal the bronchus. At this time, the vertical superposition projections of the rubber pad I 308 and the rubber pad II 307 are concentric rings. In order to enhance the positioning effect on the bronchus, a support sheet I 313 extending downward is provided on one side of the through hole of the rubber pad I 308, and a support sheet II 314 extending upward is provided on one side of the through hole of the rubber pad II 307. The inner sides of the support sheets I 313 and the support sheets II 314 are aligned with the inner wall of the small end 311, and the contact area with the bronchus is increased through the support sheets I 313 and the support sheets II 314.

[0032] In order to facilitate the connection between the positioning sleeve II 302 and the upper cover 2, the upper end of the upper cover 2 is a threaded end 202, and the lower end of the positioning sleeve II 302 is provided with an internal thread threadedly connected to the upper cover 2. Preferably, the positioning sleeve I 301 and the positioning sleeve II 302 adopt the same structure.

[0033] The three-way pipe 1 includes a straight pipe 101 and a branch pipe 102 arranged at an angle on one side of the straight pipe 101. The straight pipe 101 is provided with a bite portion 103, and the patient can bite the teeth on the bite portion 103 to prevent the oral cavity from closing. A curved airway 4 is provided at the lower end of the straight pipe 101 to facilitate bronchial entry.

[0034] Working principle:

[0035] Step 1: Rotate the positioning sleeve I 301 and the positioning sleeve II 302 to the same phase. At this time, the projections of the through holes of the rubber pad I 308 and the rubber pad II 307 in the vertical direction overlap, and thread the positioning sleeve 302 onto the upper cover 2 .

[0036] Step 2: The bronchus is brought into the designated position along the through hole 309, the straight tube 101 and the airway tube 4, and the positioning sleeve I301 is rotated to rotate the rubber pad I308 downward 180°. The opposite surfaces of the rubber pad I308 and the rubber pad II307 are fitted together, and the inner walls of the two through holes are respectively fitted and sealed with the bronchus.

[0037] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A fiber bronchoscope guiding device, comprising a three-way tube (1), characterized in that: An upper cover (2) is provided at one end of the three-way pipe (1); a guide hole (201) for inserting a bronchus is provided in the middle of the upper cover (2); and a bronchus sealing mechanism (3) is provided at the upper end of the upper cover (2); The bronchial sealing mechanism (3) comprises a positioning sleeve I (301) and a positioning sleeve II (302) which are arranged in an upper and lower manner, wherein the positioning sleeve I (301) and the positioning sleeve II (302) are both upper and lower through-type structures, the lower end of the positioning sleeve I (301) is provided with a first step hole (303), the inner side wall of the first step hole (303) is provided with an internal thread, the upper end of the positioning sleeve II (302) is provided with an annular boss (304), the outer side wall of the annular boss (304) is provided with an external thread (305) matching the internal thread, the inner side of the annular boss (304) is coaxially provided with a second step hole (306), the second step hole (306) is fixedly provided with a rubber pad II (307), and the upper end of the rubber pad II (307) extends upwardly out of the second step hole (306); A rubber pad I (308) is fixedly disposed in the first step hole (303), and a special-shaped through hole (309) is disposed in the middle of the rubber pad I (308) and the rubber pad II (307). When the rubber pad I (308) and the rubber pad II (307) are 180° out of phase with each other, the superimposed projections of the rubber pad I (308) and the rubber pad II (307) in the vertical direction are concentric circular rings.

2. A fiber bronchoscope guiding device according to claim 1, characterized in that: The profile of the through hole (309) comprises a large end (310), a small end (311), and a connecting section (312) connecting the large end (310) and the small end (311); the small end (311) and the large end (310) are both semicircular in shape; and the width of the connecting section (312) is the same as the diameter of the small end (311).

3. A fiber bronchoscope guiding device according to claim 1, characterized in that: The upper end of the upper cover (2) is a threaded end (202), and the lower end of the positioning sleeve II (302) is provided with an internal thread that is threadably connected to the upper cover (2).

4. A fiber bronchoscope guiding device according to claim 2, characterized in that: A support sheet I (313) extending downward is provided on one side of the through hole of the rubber pad I (308), and a support sheet II (314) extending upward is provided on one side of the through hole of the rubber pad II (307), wherein the inner sides of the support sheets I (313) and II (314) are aligned with the inner wall of the small end (311).

5. A fiber bronchoscope guiding device according to claim 1, characterized in that: The three-way pipe (1) comprises a straight pipe (101) and a branch pipe (102) arranged at an angle on one side of the straight pipe (101), and a curved air guide pipe (4) is arranged at the lower end of the straight pipe (101).

6. A fiberbronchoscope guiding device according to claim 5, characterized in that: The straight tube (101) is provided with a bite portion (103).

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