Nasal foreign body extractor

Abstract

The invention discloses a nasal cavity foreign body extractor which realizes safe hooking of foreign bodies through linkage design of a hook block, a driving long rod, double grips and an elastic reed. During operation, the hook block is horizontally inserted behind a foreign matter, the driving grip is pressed to rotate the hook block into a right-angle hook shape, and the foreign matter can be taken out by reversely pulling out the hook block. The instrument is compact in structure, easy and convenient to operate and particularly suitable for clinical treatment of foreign bodies in the nasal cavities of children.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to an instrument for safely and efficiently removing nasal foreign bodies, especially suitable for removing larger or harder foreign bodies in the nasal cavities of children. Background Art

[0002] Nasal foreign bodies are common diseases in otolaryngology, especially in child patients, often caused by accidentally inserting small objects into the nasal cavities, resulting in the retention of foreign bodies. In the existing technology, clinicians mostly use forceps to pick up or self-made hook-shaped tools for treatment. However, picking up with forceps is likely to cause smooth foreign bodies (such as glass beads, plastic balls) to slip off, and even push them into the deep part of the nasal cavity or the respiratory tract, causing secondary risks; while self-made hook-shaped tools, due to the lack of standardized design, are difficult to accurately cross the foreign bodies, with great operation difficulty and easy to damage the nasal mucosa. Therefore, there is an urgent need for a special instrument with simple operation, high safety and suitable for different foreign body characteristics. Summary of the Invention

[0003] To solve the deficiencies of the existing tools for removing nasal foreign bodies, the present invention provides a nasal foreign body extractor with a compact structure, safe operation and capable of accurately hooking foreign bodies, especially suitable for removing larger or harder foreign bodies in the nasal cavities of children.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A nasal foreign body extractor, comprising a hook block 1, a driving long rod 2, a fixed grip 3, a driving grip 4 and a resilient spring piece 5, characterized in that: The fixed grip 3 and the driving grip 4 are hinged through a hinge hole a11 and a hinge hole b12, and the driving grip 4 is connected to the end of the driving long rod 2 through a hinge hole c21 and a hinge hole d22; The working end of the hook block 1 is connected to the head end of the fixed grip 3 through a hinge hole e31 and a hinge hole f32, and the driving end is connected to the head end of the driving long rod 2 through a hinge hole g41 and a hinge hole h42; The resilient spring piece 5 is arranged between the fixed grip 3 and the driving grip 4, and is used to maintain the initial horizontal state of the hook block 1 and the driving long rod 2.

[0005] As a further description of the above technical solution: The working end and the driving end of the hook block 1 form an included angle of 135°, and the hinge hole h42 at the driving end is a horizontal straight line type.

[0006] As a further description of the above technical solution: The width of the driving long rod 2 and the fixed grip 3 is 2 - 3 mm, and the thickness is 1 - 1.5 mm.

[0007] As a further description of the above technical solution: The diameters of the hinge holes a11, b12, c21, d22, e31, f32, g41 and h42 are 0.5 mm, the diameter of the through-axis is 0.48 mm, and the material is chromium alloy steel.

[0008] The present invention has the following beneficial effects: In the present invention, the mucosal damage is avoided by horizontally inserting the hook block, and a right-angled hook structure is formed during hooking to prevent the foreign object from slipping off, improving the safety of the operation. In the present invention, the hardness of the instrument is ensured by the high-chromium alloy material, which can cope with foreign objects of different sizes and hardnesses and has strong adaptability. Simple operation: In the present invention, through the single-handed holding design (the thumb fixes the grip and the four fingers drive the grip), it conforms to ergonomics, is suitable for operating in the narrow nasal cavity space of children, and the operation is simple. Description of the drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of the nasal foreign body extractor of the present invention; Figure 2 It is an exploded view of the parts of the nasal foreign body extractor of the present invention; Figure 3 It is an operation schematic diagram of the nasal foreign body extractor of the present invention.

[0010] Legend description: Hook block; 2, driving long rod; 3, fixed grip; 4, driving grip; 5, elastic spring piece; 11, hinge hole a; 12, hinge hole b; 21, hinge hole c; 22, hinge hole d; 31, hinge hole e; 32, hinge hole f; 41, hinge hole g; 42 hinge hole h. Detailed implementation manners

[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0012] Referring to Figures 1 to 3 , an embodiment provided by the present invention: A nasal foreign body extractor, including the following core components: Hook block 1: The working end and the driving end form an included angle of 135°, the thickness of the working end is 1 - 1.5 mm, the width is 2 - 3 mm, the length is 3 - 4 mm, and it is made of high-chromium alloy material, having high hardness and anti-deformation ability; Driving long rod 2: Horizontally arranged above the fixed grip and connected to the driving end of the hook block through a straight-through hinge hole; Fixed grip 3 and driving grip 4: The two are connected through a hinge hole, and the driving grip drives the driving long rod to move horizontally. Elastic spring piece 5: Made of manganese alloy steel, it is arranged between the fixed grip and the driving grip and is used to maintain the initial horizontal state of the instrument.

[0013] Structural connection relationship: The end of the fixed grip 3 is provided with a hinge hole b12, which is hinged to the hinge hole a11 of the driving grip 4 through a chromium alloy steel through-shaft (diameter 0.48 mm). The end of the driving long rod 2 is connected to the hinge hole c21 of the driving grip 4 through the hinge hole d22. The working end of the hook block 1 is connected to the hinge hole e31 at the head of the fixed grip 3 through the hinge hole f32, and the driving end is connected to the hinge hole g41 at the head of the driving long rod 2 through the hinge hole h42.

[0014] Operating principle: In the initial state, the elastic spring piece 5 keeps the hook block 1 and the driving long rod 2 horizontal. Horizontally insert the hook block 1 into the gap between the foreign object and the nasal mucosa. After passing over the foreign object, press the driving grip 4 inward. The driving long rod 2 moves forward, driving the hook block 1 to rotate downward to form a 90° hook shape with the driving long rod 2, and hooking the foreign object. Pull the instrument outward, and the foreign object is safely removed with the hook block 1.

[0015] Through the linkage design of the hook block 1, the driving long rod 2, the double grips and the elastic spring piece 5, the present invention realizes the safe hooking of foreign objects. During operation, the hook block 1 is horizontally inserted behind the foreign object, and the driving grip 4 is pressed to make the hook block 1 rotate into a right-angled hook shape, and then the foreign object can be removed by pulling it out in the reverse direction. This instrument has a compact structure and is easy to operate, and is especially suitable for the clinical treatment of nasal foreign objects in children.

[0016] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Nasal foreign body extractor, comprising a hook block (1), a driving long rod (2), a fixed grip (3), a driving grip (4) and a resilient spring piece (5), characterized in that: The fixed grip (3) and the driving grip (4) are hinged through a hinge hole a (11) and a hinge hole b (12), and the driving grip (4) is connected to the end of the driving long rod (2) through a hinge hole c (21) and a hinge hole d (22); The working end of the hook block (1) is connected to the head end of the fixed grip (3) through a hinge hole e (31) and a hinge hole f (32), and the driving end is connected to the head end of the driving long rod (2) through a hinge hole g (41) and a hinge hole h (42); The resilient spring piece (5) is arranged between the fixed grip (3) and the driving grip (4) for maintaining the initial horizontal state of the hook block (1) and the driving long rod (2).

2. The nasal foreign body extractor according to claim 1, characterized in that: The working end and the driving end of the hook block (1) form an included angle of 135°, and the hinge hole h (42) at the driving end is a horizontal straight shape.

3. The nasal foreign body extractor according to claim 1, characterized in that: The width of the driving long rod (2) and the fixed grip (3) is 2 - 3 mm, and the thickness is 1 - 1.5 mm.

4. The nasal foreign body extractor according to claim 1, wherein: The diameters of the hinge hole a (11), hinge hole b (12), hinge hole c (21), hinge hole d (22), hinge hole e (31), hinge hole f (32), hinge hole g (41) and hinge hole h (42) are 0.5 mm, the diameter of the through - shaft is 0.48 mm, and the material is chromium alloy steel.

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