Nasal foreign body extractor

Abstract

The nasal cavity foreign body extractor comprises an operation assembly, a supporting plate assembly, an elastic supporting rod assembly, a pushing mechanism, a pulling part and a deformation driving mechanism, and the operation assembly comprises two operation rods hinged to each other; the supporting plate assembly comprises two supporting plates, the elastic supporting rod assembly comprises two sets of elastic supporting rods, and the head ends of each set of elastic supporting rods are arranged in the supporting plates; the pushing mechanism is mounted on one of the operating rods, is connected with the elastic supporting rod and is used for driving the elastic supporting rod to extend out of or retract into the supporting plate; the pulling part is arranged at the head end of the elastic supporting rod and can be exposed out of the elastic supporting rod, and the pulling part can expand and deform; the deformation driving mechanism is connected with the pulling part and used for driving the pulling part to expand and deform. The nasal cavity foreign body extractor can avoid the problems that a traditional nasal cavity foreign body extractor is not firm in clamping, foreign bodies move, adsorption fails and the like in the operation process, and therefore the success rate and safety of nasal cavity foreign body extraction are improved.

Description

Technical Field

[0001] The present invention particularly relates to a nasal foreign body remover. Background Art

[0002] Foreign bodies in the nasal cavity refer to substances that enter the nasal cavity from outside and stay in the nasal cavity. Foreign bodies can be divided into three categories: 1. Non-biological foreign bodies, such as buttons, glass beads, paper rolls, toys, stones, soil, etc.; 2. Plant foreign bodies, such as fruit shells, peanuts, beans, fruit cores, etc.; 3. Animal foreign bodies, such as insects, roundworms, maggots, trichomonas, leeches, etc.

[0003] In clinical practice, the incidence of non-biological foreign bodies and plant foreign bodies is high, and they are more common in children. Since the external dimensions of nasal foreign bodies are larger than the nasal cavity, the foreign bodies are firmly stuck in the nasal cavity, making it difficult to remove them. At present, the commonly used nasal foreign body removal instruments in clinical practice mainly include a combination of a spreader and tweezers or a negative pressure suction cup device. However, the existing technology has the following limitations:

[0004] 1. Straight-type tweezers: The clamping part is a straight-line structure. Although it is easy to insert into the nasal cavity, it is easy to have problems such as loose clamping and slipping when clamping foreign objects, resulting in failure of removal;

[0005] 2. Bent tweezers: The clamping ends are bent inward at an angle, which can improve the stability of clamping foreign objects. However, since both clamping ends are bent inward, it is easy to push the foreign objects inward during the process of penetrating into the nasal cavity, and even cause the foreign objects to fall into the pharynx or trachea, causing serious complications.

[0006] 3. Negative pressure suction cup device: For foreign objects with rough surfaces (such as toys, stones, fruit cores, insects, etc.), the negative pressure suction cup is difficult to form effective adsorption, resulting in failure to remove the foreign objects. Summary of the invention

[0007] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a nasal foreign body remover that can avoid the problems of traditional nasal foreign body removers such as loose clamping, foreign body displacement, and adsorption failure during operation, thereby improving the success rate and safety of nasal foreign body removal.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solution: a nasal foreign body remover, comprising:

[0009] An operating assembly includes two operating rods hinged to each other, each operating rod having a mounting end and an operating end;

[0010] A support plate assembly, comprising two support plates, respectively fixed to the mounting ends of the two operating rods, wherein the support plates are hollow structures, and an outlet communicating with the inner cavity is provided on the front end surface thereof;

[0011] An elastic support rod assembly, comprising two groups of elastic support rods, the head end of each group of elastic support rods being arranged in the support plate and being able to extend from the outlet, and the elastic support rods being able to bend and deform when subjected to lateral pressure;

[0012] A pushing mechanism, mounted on one of the operating rods and connected to the elastic support rod, for driving the elastic support rod to extend or retract into the support plate;

[0013] A pulling portion is disposed at the head end of the elastic support rod and can be exposed from the elastic support rod, and the pulling portion can expand and deform; and

[0014] The deformation driving mechanism is connected to the pulling part and is used to drive the pulling part to expand and deform.

[0015] Furthermore, the tail end of the elastic support rod can slide through the operating rod, and the pushing mechanism is connected to the two groups of elastic support rods to synchronously drive the two groups of elastic support rods to extend or retract.

[0016] Furthermore, each group of elastic support rods includes a plurality of elastic support rods, and the head ends of the plurality of elastic support rods are arranged side by side at intervals in the support plate.

[0017] Furthermore, the driving mechanism comprises:

[0018] Rotating power source;

[0019] Two mounting shafts are rotatable and arranged in parallel between the two operating rods;

[0020] Two driving rollers are respectively sleeved and fixed on two mounting shafts;

[0021] Among them, the rotating power source is connected to one of the mounting shafts to drive the mounting shaft to rotate; the middle parts of the two groups of elastic struts extend from the operating rod, pass through the gap between the two pushing rollers, and are rollingly connected to the two pushing rollers; when the pushing rollers roll, they can synchronously push the two groups of elastic struts to move.

[0022] Furthermore, the pushing mechanism also includes two guide cylinders, which are arranged at an interval; the elastic support rod extending from the operating rod slides through the first guide cylinder, the gap between the two pushing rollers and the second guide cylinder in sequence, and finally penetrates into the operating rod.

[0023] Furthermore, the pulling portion comprises:

[0024] The expansion body is ellipsoidal in shape and is initially arranged in a compressed state inside the elastic support rod; the expansion body can expand radially after being separated from the elastic support rod.

[0025] Furthermore, the expansion body comprises a plurality of elastic steel bars, and the plurality of steel bars are interconnected to form an ellipsoidal expansion body.

[0026] Furthermore, the deformation driving mechanism comprises:

[0027] A piston plate, slidably disposed in the elastic support rod and connected to the expansion body;

[0028] The inflation device is connected with the inner cavity of the elastic support rod through an air pipe; when air is inflated into the elastic support rod, the piston plate can be pushed to slide toward the outlet, driving the expansion body to separate from the elastic support rod and expand.

[0029] Furthermore, the deformation driving mechanism also includes a limit plate, which is arranged in the elastic support rod and is located on a side of the piston plate close to the outlet.

[0030] Furthermore, the end of the elastic support rod is provided with an arc chamfer.

[0031] Beneficial effects of the present invention:

[0032] When the above-mentioned nasal foreign body remover is used, the two support plates are driven to be in a closed state by the operating rod, and then the two support plates are inserted into the same nasal cavity. Then, the two support plates are driven to separate by the operating rod to expand the nasal cavity, thereby reducing the wrapping force of the inner wall of the nasal cavity on the foreign body; then the elastic support rod is pushed out from the outlet by the pushing mechanism. Since the elastic support rod can bend and deform when subjected to lateral pressure, the elastic support rod will move forward close to the inner wall of the nasal cavity. As the elastic support rod continues to be pushed forward, the elastic push rod stops pushing after it passes over the foreign body and further enters the inner wall of the nasal cavity. When the pulling part is exposed to the elastic support rod, the deformation driving mechanism drives the pulling part to expand and deform. When the entire nasal foreign body remover is driven to move outside the nasal cavity, the foreign body can be brought out by the expanded pulling part, thereby completing the smooth removal of the foreign body.

[0033] When using the above-mentioned nasal foreign body remover, during operation, since the pulling part expands and deforms only after passing over the foreign body, it can avoid the situation where traditional bending tweezers easily push the foreign body inward during the process of penetrating into the nasal cavity. When pulling the foreign body, the expanded pulling part can prevent problems such as loose clamping and slipping. In addition, since this type of tweezer does not use negative pressure adsorption, it can be suitable for removing foreign bodies of any shape, thereby greatly improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0035] Figure 1A schematic diagram of a nasal foreign body remover provided by one embodiment of the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram showing the end of the elastic support rod of the nasal foreign body remover is located inside the support plate;

[0037] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0038] Figure 4 for Figure 1 A schematic diagram of the arrangement of the elastic support rods in the support plate of the nasal foreign body remover shown;

[0039] Figure 5 for Figure 1 A schematic diagram of a pulling portion of a nasal foreign body remover is shown;

[0040] Figure 6 for Figure 1 The position relationship diagram of the expansion body and the elastic strut in the nasal foreign body remover shown in FIG. (FIG. a is a schematic diagram of the expansion body being located in the elastic strut, FIG. a is a schematic diagram of the expansion body being located in the elastic strut provided with a limiting component at the opening of the elastic strut; FIG. c is a schematic diagram of the expansion body extending out of the elastic strut and being pulled by a pull rope);

[0041] Reference numerals:

[0042] 100, operating assembly; 110, operating rod; 200, support plate assembly; 300, elastic support rod assembly; 310, elastic support rod; 400, driving mechanism; 410, rotating power source; 420, mounting shaft; 430, driving roller; 440, guide cylinder; 500, pulling part; 510, expansion body; 520, pull rope; 600, deformation driving mechanism; 610, piston plate; 620, inflation device; 630, limit plate. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the invention is not limited by the specific implementation disclosed below.

[0044] See also Figures 1 to 6 The present invention provides a nasal foreign body remover, including an operating assembly 100, a support plate assembly 200, an elastic support rod assembly 300, a pushing mechanism 400, a pulling portion 500 and a deformation driving mechanism 600.

[0045] Specifically, the operating assembly 100 includes two mutually hinged operating rods 110, each of which has a mounting end and an operating end. The support plate assembly 200 includes two support plates, which are respectively fixed to the mounting ends of the two operating rods 110. The support plates are hollow structures, and their front end faces are provided with outlets connected to the inner cavity; the elastic support rod assembly 300 includes two groups of elastic support rods 310, and the head end of each group of elastic support rods 310 is arranged in the support plate and can extend from the outlet. The elastic support rods 310 can be bent and deformed when subjected to lateral pressure. In specific implementation, the elastic support rods 310 can be selected as steel bars, and the diameter should be as small as possible while ensuring their strength.

[0046] The pushing mechanism 400 is installed on one of the operating rods 110 and connected to the elastic support rod 310, and is used to drive the elastic support rod 310 to extend or retract into the support plate. The pulling part 500 is arranged at the head end of the elastic support rod 310 and can be exposed to the elastic support rod 310. The pulling part 500 can expand and deform. The deformation driving mechanism 600 is connected to the pulling part 500 and is used to drive the pulling part 500 to expand and deform.

[0047] During use, the two support plates are driven to be in a closed state through the operating rod 110, and then the two support plates are inserted into the same nasal cavity. Then, the two support plates are driven to separate through the operating rod 110 to expand the nasal cavity, thereby reducing the wrapping force of the inner wall of the nasal cavity on the foreign body; then, the elastic support rod 310 is pushed out from the outlet through the pushing mechanism 400. Since the elastic support rod 310 can bend and deform when subjected to lateral pressure, the elastic support rod 310 will move forward close to the inner wall of the nasal cavity. As the elastic support rod 310 continues to advance, the elastic push rod stops pushing after it passes over the foreign body and further enters the inner wall of the nasal cavity. When the pulling part 500 is exposed outside the elastic support rod 310, the deformation driving mechanism 600 drives the pulling part 500 to expand and deform. When the entire nasal foreign body remover is driven to move outside the nasal cavity, the foreign body can be brought out through the expanded pulling part 500, thereby completing the smooth removal of the foreign body.

[0048] When using the above-mentioned nasal foreign body remover, during operation, since the pulling part 500 expands and deforms only after passing over the foreign body, it can be avoided that the traditional bending type tweezers easily push the foreign body inward during the process of penetrating into the nasal cavity. When pulling the foreign body, the expanded pulling part 500 can prevent problems such as loose clamping and slipping. In addition, since this method does not adopt negative pressure adsorption, it can be suitable for removing foreign bodies of any shape, thereby greatly improving the convenience of use.

[0049] In the specific implementation, in order to make the whole extractor neat and easy to use, the tail end can be slid through the operating rod 110, and the pushing mechanism 400 is connected with the two sets of elastic support rods 310 to synchronously drive the two sets of elastic support rods 310 to extend or retract. When in use, the two sets of elastic support rods 310 are driven to move simultaneously by the pushing mechanism 400, which can simplify the number of parts and facilitate operation.

[0050] See also Figure 4 In addition, each group of elastic struts 310 may include a plurality of elastic struts 310, and the head ends of the plurality of elastic struts 310 are arranged side by side in the support plate. In specific use, when some of the elastic struts 310 are blocked by foreign objects and cannot pass over the foreign objects, the remaining elastic struts 310 can pass over smoothly, thereby ensuring smooth operation.

[0051] See also Figure 5 In this embodiment, the pushing mechanism 400 includes a rotating power source 410, two mounting shafts 420 and two pushing rollers 430. Specifically, the two mounting shafts 420 are rotatable and arranged in parallel between the two operating rods 110. The two pushing rollers 430 are respectively sleeved and fixed on the two mounting shafts 420. Among them, the rotating power source 410 is connected to one of the mounting shafts 420 to drive the mounting shaft 420 to rotate. In a specific implementation, the rotating power source 410 can be manually rotated or a rotating motor. The middle part of the two sets of elastic struts 310 extends from the operating rod 110, passes through the gap between the two pushing rollers 430, and is rollingly connected to the two pushing rollers 430; when the pushing rollers 430 roll, the two sets of elastic struts 310 can be synchronously pushed to move.

[0052] When the rotary power source 410 drives the installation shaft 420 connected thereto to rotate, the two pushing rollers 430 can be driven to rotate. Under the clamping and pulling of the two pushing rollers 430, the elastic support rod 310 can move forward or backward.

[0053] See also Figure 3 and Figure 5 As a preferred embodiment, the pushing mechanism 400 further includes two guide cylinders 440, which are arranged at intervals; the elastic support rod 310 extending from the operating rod 110 sequentially slides through the first guide cylinder 440, the gap between the two pushing rollers 430 and the second guide cylinder 440, and finally penetrates the operating rod 110. The two guide cylinders 440 can guide the elastic support rod 310 clamped between the two pushing rollers 430 to prevent the elastic support rod 310 from moving around.

[0054] See also Figure 6In this embodiment, the pulling part 500 includes an expansion body 510. The expansion body 510 is ellipsoidal in shape and is initially arranged in a compressed state inside the elastic support rod 310. The expansion body 510 can expand radially after being separated from the elastic support rod 310.

[0055] Specifically, the expansion body 510 includes a plurality of elastic steel bars, which are connected to form an ellipsoidal expansion body 510. In a specific implementation, a pull rope 520 (see Figure 6 When the expansion body 510 is separated from the operating rod, the expansion body 510 can be pulled by the pull rope 520. Of course, a limiting component can also be provided at the open end of the operating rod (see Figure 6 (b) The expansion body 510 is separated from the operating rod, resulting in a pulling failure.

[0056] The use of such expansion body 510 has the following advantages:

[0057] 1. The steel bar has a certain hardness, which can ensure that the foreign matter can be pulled out smoothly after expansion;

[0058] 2. During the pulling process, the raised part of the foreign object can easily get stuck in the gap of the steel bar, which can further facilitate pulling out the foreign object.

[0059] In other embodiments, the expansion body 510 can also be in other forms, such as an air bag, which can be expanded by inflating the air bag. In addition, it can also be an umbrella-shaped body, when the expansion body 510 is separated from the elastic support rod 310, the umbrella-shaped body opens to an umbrella shape, which can achieve the purpose of pulling the foreign body.

[0060] In this embodiment, the deformation driving mechanism 600 includes a piston plate 610 and an inflating device 620. The piston plate 610 can be slidably disposed in the elastic strut 310 and connected to the expansion body 510. The inflating device 620 is connected to the inner cavity of the elastic strut 310 through an air pipe. When the elastic strut 310 is inflated, the piston plate 610 can be pushed to slide toward the outlet direction, driving the expansion body 510 to separate from the elastic strut 310 and expand. Of course, in a specific implementation, the inflating device 620 can also be other pump bodies that can pump fluids, and the gas injected into the elastic strut 310 is a fluid adapted thereto. Into water, oil, etc.

[0061] In a specific implementation, the deformation driving mechanism 600 may also include a limit plate 630, which is arranged in the elastic support rod 310 and is located on the side of the piston plate 610 close to the outlet, for limiting the sliding range of the piston plate 610 and preventing the piston plate 610 from separating from the elastic support rod 310.

[0062] Finally, it should be noted that in the specific implementation, the edges of the components extending into the nasal cavity, such as the end of the elastic support rod 310 and the end of the pulling part 500, should be chamfered to reduce damage to the nasal tissue.

[0063] How to use the above nasal foreign body extractor:

[0064] During use, the two support plates are driven to be in a closed state through the operating rod 110, and then the two support plates are inserted into the same nasal cavity. Then, the two support plates are driven to separate through the operating rod 110 to expand the nasal cavity, and then the rotating power source 410 pushes the mechanism 400 to push the elastic support rod 310 out of the outlet. The elastic support rod 310 will move forward close to the inner wall of the nasal cavity. As the elastic support rod 310 continues to advance, the elastic push rod stops pushing after passing over the foreign body, and then the inflation device 620 is started to inflate until the expansion body 510 is pushed out, and the expansion body 510 expands and deforms outward. When the entire nasal foreign body remover is driven to move outside the nasal cavity, the foreign body can be brought out through the expanded pulling part 500, completing the smooth removal of the foreign body.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by 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 present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A nasal foreign body remover, characterized in that: include: An operating assembly includes two operating rods hinged to each other, each operating rod having a mounting end and an operating end; A support plate assembly, comprising two support plates, respectively fixed to the mounting ends of the two operating rods, wherein the support plates are hollow structures, and an outlet communicating with the inner cavity is provided on the front end surface thereof; An elastic support rod assembly, comprising two groups of elastic support rods, the head end of each group of elastic support rods being arranged in the support plate and being able to extend from the outlet, and the elastic support rods being able to bend and deform when subjected to lateral pressure; A pushing mechanism, mounted on one of the operating rods and connected to the elastic support rod, for driving the elastic support rod to extend or retract into the support plate; A pulling portion is disposed at the head end of the elastic support rod and can be exposed from the elastic support rod, and the pulling portion can expand and deform; and The deformation driving mechanism is connected to the pulling part and is used to drive the pulling part to expand and deform.

2. The nasal foreign body remover according to claim 1, characterized in that: The tail end of the elastic support rod can slide through the operating rod, and the pushing mechanism is connected to the two groups of elastic support rods to synchronously drive the two groups of elastic support rods to extend or retract.

3. The nasal foreign body remover according to claim 2, characterized in that: Each group of elastic support rods includes a plurality of elastic support rods, and the head ends of the plurality of elastic support rods are arranged side by side at intervals in the support plate.

4. The nasal foreign body remover according to any one of claims 1 or 2, characterized in that: The driving mechanism comprises: Rotating power source; Two mounting shafts are rotatable and arranged in parallel between the two operating rods; Two driving rollers are respectively sleeved and fixed on two mounting shafts; Among them, the rotating power source is connected to one of the mounting shafts to drive the mounting shaft to rotate; the middle parts of the two groups of elastic struts extend from the operating rod, pass through the gap between the two pushing rollers, and are rollingly connected to the two pushing rollers; when the pushing rollers roll, they can synchronously push the two groups of elastic struts to move.

5. The nasal foreign body extractor according to claim 4, characterized in that: The pushing mechanism also includes two guide cylinders, which are arranged at intervals; the elastic support rod extending from the operating rod slides through the first guide cylinder, the gap between the two pushing rollers and the second guide cylinder in sequence, and finally penetrates into the operating rod.

6. The nasal foreign body extractor according to claim 1, characterized in that: The pulling portion comprises: The expansion body is ellipsoidal in shape and is initially arranged in a compressed state inside the elastic support rod; the expansion body can expand radially after being separated from the elastic support rod.

7. The nasal foreign body remover according to claim 6, characterized in that: The expansion body comprises a plurality of elastic steel bars, and the plurality of steel bars are connected to each other to form an ellipsoidal expansion body.

8. The nasal foreign body remover according to claim 7, characterized in that: The deformation driving mechanism comprises: A piston plate, slidably disposed in the elastic support rod and connected to the expansion body; The inflation device is connected with the inner cavity of the elastic support rod through an air pipe; when air is inflated into the elastic support rod, the piston plate can be pushed to slide toward the outlet, driving the expansion body to separate from the elastic support rod and expand.

9. The nasal foreign body remover according to claim 8, characterized in that: The deformation driving mechanism further comprises a limit plate, which is arranged in the elastic support rod and located on a side of the piston plate close to the outlet.

10. The nasal foreign body extractor according to claim 1, characterized in that: The end of the elastic support rod is provided with a circular arc chamfer.

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