Trachea cannula

Abstract

The utility model discloses a trachea cannula which comprises an outer cannula body, a first annular supporting plate and a second annular supporting plate are sequentially connected to the outer cannula body, two fixing rods are connected between the first annular supporting plate and the second annular supporting plate in a mirror image mode, and positioning pieces are inserted into the two fixing rods. Two arc-shaped limiting through grooves are further formed in the positioning piece in a mirror image mode, the corresponding fixing rods are connected into the arc-shaped limiting through grooves in a sliding mode, an inner sleeve is inserted into the outer sleeve, and the second annular supporting plate and the inner sleeve are provided with rotating buckle assemblies for fastening the inner sleeve to the outer sleeve. The trachea cannula solves the problems that an inner cannula body and an outer cannula body in an existing trachea cannula are fixed through extrusion of a limiting block, so that the inner cannula body and the outer cannula body are not firmly fixed, and the inner cannula body and the outer cannula body are prone to being separated under daily conditions.

Description

Technical Field

[0001] The utility model relates to a tracheal cannula. Background Art

[0002] Tracheotomy is a procedure in which the patient's cervical trachea is cut open and a tracheal tube is placed into the patient's trachea through the incision. It is used to relieve upper respiratory tract obstruction, laryngeal dyspnea, respiratory dysfunction, or dyspnea caused by retention of lower respiratory tract secretions, mechanical ventilation, and prevention of aspiration pneumonia in patients with severe aspiration. It is a common medical procedure in clinical practice.

[0003] The tracheal cannula is an important treatment tool. In the existing tracheal cannula, the inner cannula and the outer cannula are fixed by squeezing a limit block, which results in the inner cannula and the outer cannula being loosely fixed and easily separated under normal circumstances. Utility Model Content

[0004] The utility model aims to overcome the existing defects and provide a tracheal cannula, which can fasten an inner cannula and an outer cannula, ensure the stability of the connection, and effectively prevent the inner cannula and the outer cannula from being separated under normal circumstances.

[0005] The technical solution to achieve the above-mentioned purpose is: a tracheal cannula, including an outer sleeve, to which a first annular support plate and a second annular support plate are connected in sequence, two fixing rods are mirror-connected between the first annular support plate and the second annular support plate, positioning plates are inserted into the two fixing rods, the positioning plates are in contact with the first annular support plate and the second annular support plate, and two arc-shaped limiting grooves are mirror-imaged on the positioning plates, an inner sleeve is inserted into the outer sleeve, and a rotating buckle assembly for fastening the inner sleeve to the outer sleeve is provided on the second annular support plate and the inner sleeve.

[0006] Preferably, the rotating buckle assembly includes a third annular support plate, two first clamping blocks, two first sliding grooves, an annular baffle, a bearing, a fixed bracket, two second clamping blocks and two second sliding grooves, the second annular support plate is connected to the third annular support plate, two first clamping blocks and two first sliding grooves are mirrored on the third annular support plate, one end of the inner sleeve is connected to the annular baffle, a bearing is installed on the inner sleeve, the outer wall of the bearing is connected to a fixed bracket, two second clamping blocks and two second sliding grooves are mirrored in the fixed bracket, the two first clamping blocks are clamped into the corresponding second sliding grooves, and the two second clamping blocks are clamped into the corresponding first sliding grooves.

[0007] Preferably, a sealing ring is provided on the fixing bracket, and the sealing ring is in close contact with the outer sleeve.

[0008] Preferably, each of the arc-shaped limiting through grooves is slidably connected with a corresponding fixing rod.

[0009] Preferably, two strap openings are mirror-imaged on the positioning piece, and the rotating buckle assembly is made of stainless steel.

[0010] Preferably, a bandage may be tied on each of the strap openings.

[0011] The beneficial effect of the utility model is that the two first clamping blocks are clamped into the corresponding second sliding grooves, and the two second clamping blocks are clamped into the corresponding first sliding grooves, so that the fixed bracket and the third annular support plate are fastened together. Since the third annular support plate is connected to the outer sleeve, the fixed bracket is rotatably connected to the inner sleeve, so that the inner sleeve is firmly fixed to the outer sleeve to ensure the stability of the connection, and effectively prevent the inner sleeve and the outer sleeve from separating under normal circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 This is a schematic diagram of the parts combination of the rotating buckle assembly of the utility model;

[0015] Figure 4 yes Figure 3 Schematic diagram from another perspective;

[0016] Figure 5 It is a cross-sectional view of the inner sleeve of the utility model.

[0017] In the figure: 1, outer sleeve; 2, first annular support plate; 3, fixing rod; 4, positioning plate; 5, strap opening; 6, arc-shaped limit groove; 7, second annular support plate; 8, inner sleeve; 9, third annular support plate; 10, first clamping block; 11, first slide groove; 12, annular baffle; 13, bearing; 14, fixing bracket; 15, sealing ring; 16, second clamping block; 17, second slide groove. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-5 As shown, a tracheal cannula comprises an outer cannula 1, a first annular support plate 2, a second annular support plate 7, two fixing rods 3, a positioning sheet 4, an inner cannula 8 and a rotating buckle assembly.

[0021] Specifically, the outer sleeve 1 is connected to a first annular support plate 2 and a second annular support plate 7 in sequence, and two fixing rods 3 are mirror-connected between the first annular support plate 2 and the second annular support plate 7, and positioning pieces 4 are inserted into the two fixing rods 3, and the positioning pieces 4 are in contact with the first annular support plate 2 and the second annular support plate 7. Two arc-shaped limiting grooves 6 are also mirror-opened on the positioning piece 4, and each arc-shaped limiting groove 6 is slidably connected with a corresponding fixing rod 3, and the positioning piece 4 can rotate back and forth around the center of the arc-shaped limiting groove 6 by a certain angle, so that the angle of the positioning piece 4 can be easily adjusted, and the positioning piece 4 can be fixed with a strap, and an inner sleeve 8 is inserted into the outer sleeve 1, and a rotating buckle assembly for fastening the inner sleeve 8 to the outer sleeve 1 is provided on the second annular support plate 7 and the inner sleeve 8.

[0022] Specifically, the rotating buckle assembly includes a third annular support plate 9, two first clamping blocks 10, two first slide grooves 11, an annular baffle 12, a bearing 13, a fixed bracket 14, two second clamping blocks 16 and two second slide grooves 17. The second annular support plate 7 is connected to the third annular support plate 9, and the third annular support plate 9 is mirror-imaged with two first clamping blocks 10 and two first slide grooves 11. One end of the inner sleeve 8 is connected to the annular baffle 12, and the inner sleeve 8 is installed with a bearing 13. The outer wall of the bearing 13 is connected to the fixed bracket 14, and the inner sleeve 8 and the fixed bracket 1 are connected by the bearing 13. 4 is rotatably connected, the fixed bracket 14 is mirrored with two second clamping blocks 16 and two second sliding grooves 17, the two first clamping blocks 10 are clamped into the corresponding second sliding grooves 17, and the two second clamping blocks 16 are clamped into the corresponding first sliding grooves 11. The third annular support plate 9 and the fixed bracket 14 are clamped by rotating the fixed bracket 14. If the inner sleeve 8 is to be taken out, the fixed bracket 14 needs to be rotated in the opposite direction. At this time, the two first clamping blocks 10 and the two second clamping blocks 16 are disengaged from the corresponding second sliding grooves 17 and the first sliding groove 11, and the inner sleeve 8 can be easily pulled out from the outer sleeve 1.

[0023] Specifically, a sealing ring 15 is provided on the fixed bracket 14, and the sealing ring 15 is tightly attached to the outer sleeve 1. The sealing ring 15 can ensure the airtightness between the outer sleeve 1 and the inner sleeve 8. Two strap openings 5 ​​are mirrored on the positioning plate 4. The two strap openings 5 ​​are convenient for tying straps to fix the outer sleeve 1. The rotating buckle assembly is made of stainless steel material. Stainless steel material has good corrosion resistance and can greatly extend the service life of the device.

[0024] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tracheal cannula, characterized in that: The invention comprises an outer sleeve (1), to which a first annular support plate (2) and a second annular support plate (7) are connected in sequence, two fixing rods (3) are connected in a mirror-image manner between the first annular support plate (2) and the second annular support plate (7), positioning plates (4) are inserted into the two fixing rods (3), the positioning plates (4) are in contact with the first annular support plate (2) and the second annular support plate (7), and two arc-shaped limiting through grooves (6) are also mirror-imaged on the positioning plates (4), an inner sleeve (8) is inserted into the outer sleeve (1), and a rotating buckle assembly for fastening the inner sleeve (8) to the outer sleeve (1) is provided on the second annular support plate (7) and the inner sleeve (8).

2. A tracheal cannula according to claim 1, characterized in that: The rotating buckle assembly comprises a third annular support plate (9), two first clamping blocks (10), two first sliding grooves (11), an annular baffle (12), a bearing (13), a fixed bracket (14), two second clamping blocks (16) and two second sliding grooves (17); the second annular support plate (7) is connected to the third annular support plate (9); the third annular support plate (9) is provided with two first clamping blocks (10) and two first sliding grooves (11) in a mirror-like manner; one end of the inner sleeve (8) is connected to the annular baffle (12); the inner sleeve (8) is provided with a bearing (13); the outer wall of the bearing (13) is connected to the fixed bracket (14); the fixed bracket (14) is provided with two second clamping blocks (16) and two second sliding grooves (17) in a mirror-like manner; the two first clamping blocks (10) are clamped into the corresponding second sliding grooves (17); and the two second clamping blocks (16) are clamped into the corresponding first sliding grooves (11).

3. A tracheal cannula according to claim 2, characterized in that: A sealing ring (15) is provided on the fixing bracket (14), and the sealing ring (15) is in close contact with the outer sleeve (1).

4. A tracheal cannula according to claim 1, characterized in that: Each of the arc-shaped limiting through grooves (6) is slidably connected to a corresponding fixing rod (3).

5. A tracheal cannula according to claim 1, characterized in that: The positioning plate (4) is provided with two strap openings (5) in a mirror-image manner, and the rotating buckle assembly is made of stainless steel.

6. A tracheal cannula according to claim 5, characterized in that: A bandage may be tied on each of the strap openings (5).

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