Nasal foreign body retriever

Abstract

The nose cavity foreign matter extractor disclosed by the application comprises an operating assembly, a support plate assembly, an elastic support rod assembly, a pushing mechanism, a pulling part and a deformation driving mechanism, the operating assembly comprises two operating levers which are hingedly connected with each other, the support plate assembly comprises two support plates, the elastic support rod assembly comprises two groups of elastic support rods, the first ends of each group of elastic support rods are arranged in the support plates, the pushing mechanism is installed on one of the operating levers and connected with the elastic support rods, and is used for driving the elastic support rods to extend out or retract into the support plates, the pulling part is arranged at the first ends of the elastic support rods and can be exposed outside the elastic support rods, the pulling part can be expanded and deformed, and the deformation driving mechanism is connected with the pulling part and used for driving the pulling part to expand and deform. The nose cavity foreign matter extractor can avoid the problems of the traditional nose cavity foreign matter extraction instrument, such as unfirm clamping, foreign matter displacement, adsorption failure and the like during operation, so that the success rate and safety of nose cavity foreign matter extraction are improved.

Description

Technical Field

[0001] This invention specifically relates to a nasal foreign body removal device. Background Technology

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

[0003] In clinical practice, the incidence of non-biological and plant-based foreign bodies is relatively high, especially in pediatric patients. Because the external dimensions of nasal foreign bodies are generally larger than the nasal cavity, they tend to become firmly lodged within the nasal cavity, making removal difficult. Currently, commonly used instruments for nasal foreign body removal mainly include combinations of retractors and forceps or negative pressure suction devices. However, existing technologies have the following limitations:

[0004] 1. Straight-line tweezers: Their gripping part has a straight-line structure, which makes it easy to insert into the nasal cavity, but when picking up foreign objects, problems such as insecure gripping and slippage are likely to occur, leading to failure to remove them;

[0005] 2. Bending forceps: The gripping ends are bent inward, which can improve the stability of grasping foreign objects. However, since both gripping ends are bent inward, they can easily push the foreign object inward when it is inserted into the nasal cavity, or even cause the foreign object 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 pits, insects, etc.), the negative pressure suction cup is difficult to form an effective adsorption, resulting in the failure to remove the foreign object. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a nasal foreign body removal device that can avoid problems such as insecure clamping, foreign body displacement, and adsorption failure in traditional nasal foreign body removal instruments during operation, thereby improving the success rate and safety of nasal foreign body removal.

[0008] To achieve the above objectives, the present invention provides a nasal foreign body removal device, comprising:

[0009] The operating assembly includes two hinged levers, each lever having a mounting end and an operating end;

[0010] The support plate assembly includes two support plates, which are respectively fixed to the mounting ends of two operating rods. The support plates are hollow structures, and their front end faces are provided with outlets communicating with the inner cavity.

[0011] The elastic strut assembly includes two sets of elastic struts, the head end of each set of elastic struts is disposed inside the support plate and can extend out from the outlet, and the elastic struts can bend and deform when subjected to lateral pressure;

[0012] A pushing mechanism, mounted on one of the operating levers and connected to the elastic support rod, is used to drive the elastic support rod to extend or retract into the support plate;

[0013] A pulling part is disposed at the first end of the elastic support rod and can be exposed outside the elastic support rod; the pulling part is capable of expanding and deforming.

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

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

[0016] Furthermore, each set of elastic struts includes multiple elastic struts, with the ends of the multiple elastic struts arranged side by side at intervals within the support plate.

[0017] Furthermore, the actuation mechanism includes:

[0018] Rotary power source;

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

[0020] Two push rollers are respectively fitted and fixed on two mounting shafts;

[0021] The rotary power source is connected to one of the mounting shafts to drive the mounting shaft to rotate; the middle part of the two sets of elastic support rods extends from the operating rod and passes through the gap between the two push rollers, and is tactilely connected to the two push rollers; when the push rollers roll, they can synchronously push the two sets of elastic support rods to move.

[0022] Furthermore, the pushing mechanism also includes two guide cylinders, which are spaced apart; the elastic support rod extending from the operating rod slides sequentially through the first guide cylinder, the gap between the two pushing rollers and the second guide cylinder, and finally passes through the operating rod.

[0023] Furthermore, the pulling part includes:

[0024] An expandable body, ellipsoidal in shape, is initially compressed within the elastic strut; the expandable body can expand radially after detaching from the elastic strut.

[0025] Furthermore, the expansion body includes multiple elastic steel bars, which are connected to each other to form an ellipsoidal expansion body.

[0026] Furthermore, the deformation driving mechanism includes:

[0027] The piston plate is slidably disposed within the elastic support rod and connected to the expansion body;

[0028] An inflation device is connected to the inner cavity of the elastic support rod via an air pipe; when air is inflated into the elastic support rod, it can push the piston plate to slide towards the outlet, driving the expander to detach from the elastic support rod and expand.

[0029] Furthermore, the deformation drive mechanism also includes a limiting plate, which is disposed inside the elastic strut and located on the side of the piston plate near the outlet.

[0030] Furthermore, the end of the elastic strut is provided with a rounded chamfer.

[0031] The beneficial effects of this invention are:

[0032] In use, the aforementioned nasal foreign body removal device involves driving two support plates into a closed state via an operating lever, then inserting both plates into the same nasal cavity. Next, the operating lever drives the two support plates to separate, expanding the nasal cavity and reducing the enveloping force of the nasal cavity wall on the foreign body. Subsequently, a pushing mechanism pushes the elastic support rod out from the outlet. Because the elastic support rod can bend and deform under lateral pressure, it moves forward close to the nasal cavity wall. As the elastic support rod continues to advance, it stops pushing after passing the foreign body and further into the nasal cavity wall. With the pulling part exposed outside the elastic support rod, a deformation drive mechanism drives the pulling part to expand and deform. When the entire nasal foreign body removal device is moved out of the nasal cavity, the expanded pulling part can carry the foreign body out, successfully removing it.

[0033] Using the aforementioned nasal foreign body removal device, the pulling part expands and deforms only after passing the foreign body during operation, which avoids the situation where traditional bent tweezers easily push the foreign body inward when entering the nasal cavity. When pulling the foreign body, the expanded pulling part can prevent problems such as insecure grip and slippage. In addition, since this method does not use negative pressure suction, it can be used to remove foreign bodies of any shape, thus greatly improving ease of use. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0035] Figure 1This is a schematic diagram of a nasal foreign body removal device according to an embodiment of the present invention;

[0036] Figure 2 for Figure 1 The diagram shows the end of the elastic strut of the nasal foreign body removal device located inside the support plate;

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

[0038] Figure 4 for Figure 1 The diagram shows the arrangement of the elastic struts in the nasal foreign body removal device within the support plate.

[0039] Figure 5 for Figure 1 The diagram shows the pull part of the nasal foreign body removal device;

[0040] Figure 6 for Figure 1 The diagram shows the positional relationship between the inflatable body and the elastic strut in the nasal foreign body removal device (Figure a is a schematic diagram of the inflatable body being located inside the elastic strut, Figure c is a schematic diagram of the inflatable body being located inside the elastic strut with a limiting component at the opening of the elastic strut; Figure c is a schematic diagram of the inflatable body extending out of the elastic strut and being pulled by a rope).

[0041] Figure label:

[0042] 100. Operating component; 110. Operating lever; 200. Support plate assembly; 300. Elastic support rod assembly; 310. Elastic support rod; 400. Pushing mechanism; 410. Rotary power source; 420. Mounting shaft; 430. Push roller; 440. Guide cylinder; 500. Pulling part; 510. Inflator; 520. Pull rope; 600. Deformation drive mechanism; 610. Piston plate; 620. Inflation device; 630. Limiting plate. Detailed Implementation

[0043] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0044] Please see Figures 1 to 6 The present invention provides a nasal foreign body removal device, including an operation component 100, a support plate component 200, an elastic support rod component 300, a pushing mechanism 400, a pulling part 500, and a deformation driving mechanism 600.

[0045] Specifically, the operating assembly 100 includes two hinged operating rods 110, each with a mounting end and an operating end. The support plate assembly 200 includes two support plates, respectively fixed to the mounting ends of the two operating rods 110. The support plates are hollow structures, with an outlet communicating with the inner cavity on their front end faces. The elastic support rod assembly 300 includes two sets of elastic support rods 310, the head end of each set of elastic support rods 310 being located inside the support plate and extending out from the outlet. The elastic support rods 310 can bend and deform under lateral pressure. In specific implementations, the elastic support rods 310 can be selected as steel bars, and their diameter should be as small as possible while ensuring their strength.

[0046] A pushing mechanism 400 is mounted on one of the operating levers 110 and connected to the elastic support rod 310, used to drive the elastic support rod 310 to extend or retract into the support plate. A pulling part 500 is disposed at the head end of the elastic support rod 310 and can protrude from the elastic support rod 310; the pulling part 500 is capable of expansion and deformation. A deformation driving mechanism 600 is connected to the pulling part 500 and used to drive the pulling part 500 to expand and deform.

[0047] In use, the two support plates are driven to close by the operating lever 110, and then inserted into the same nasal cavity. Next, the two support plates are driven to separate by the operating lever 110 to expand the nasal cavity, thereby reducing the enveloping force of the nasal cavity wall on the foreign object. Then, the elastic support rod 310 is pushed out from the outlet by the pushing mechanism 400. Since the elastic support rod 310 can bend and deform under lateral pressure, it will move forward close to the nasal cavity wall. As the elastic support rod 310 continues to advance, it stops pushing after passing the foreign object and entering the nasal cavity wall. With the pulling part 500 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 cavity foreign object remover is driven to move out of the nasal cavity, the expanded pulling part 500 can bring out the foreign object, thus successfully removing the foreign object.

[0048] Using the aforementioned nasal foreign body removal device, the pulling part 500 expands and deforms only after passing the foreign body during operation, thus avoiding the situation where traditional bent tweezers easily push the foreign body inward during deep insertion into the nasal cavity. When pulling the foreign body, the expanded pulling part 500 prevents problems such as insecure clamping and slippage. In addition, since this method does not use negative pressure suction, it can be used to remove foreign bodies of any shape, thereby greatly improving ease of use.

[0049] In practical implementation, to ensure a neat and convenient design for the entire extractor, the tail end can slide through the operating rod 110. The pushing mechanism 400 is connected to two sets of elastic support rods 310, which are used to synchronously drive the two sets of elastic support rods 310 to extend or retract. In use, by simultaneously driving the two sets of elastic support rods 310 through the pushing mechanism 400, the number of parts can be simplified, and operation can be made more convenient.

[0050] Please see Figure 4 In addition, each set of elastic struts 310 can include multiple elastic struts 310, with the ends of the multiple elastic struts 310 arranged side by side at intervals within the support plate. In actual use, when some of the elastic struts 310 are blocked by foreign objects and cannot pass over them smoothly, the remaining elastic struts 310 can pass over them smoothly, thus ensuring the smooth progress of the operation.

[0051] Please see Figure 5 In this embodiment, the pushing mechanism 400 includes a rotary power source 410, two mounting shafts 420, and two pushing rollers 430. Specifically, the two mounting shafts 420 are rotatable and arranged parallel to each other between the two operating levers 110. The two pushing rollers 430 are respectively sleeved and fixed on the two mounting shafts 420. The rotary power source 410 is connected to one of the mounting shafts 420 and is used to drive the mounting shaft 420 to rotate. In specific implementations, the rotary power source 410 can be manually rotated or it can be a rotary motor. The middle part of the two sets of elastic support rods 310 extends from the operating lever 110 and passes through the gap between the two pushing rollers 430, and is in rolling connection with the two pushing rollers 430; when the pushing rollers 430 roll, they can synchronously push the two sets of elastic support rods 310 to move.

[0052] When the rotating power source 410 drives the connected mounting shaft 420 to rotate, it can drive the two push rollers 430 to rotate. Under the clamping and pulling of the two push rollers 430, the elastic support rod 310 can move forward or backward.

[0053] Please see Figure 3 and Figure 5 In a preferred embodiment, the pushing mechanism 400 further includes two guide cylinders 440, which are spaced apart. An elastic support rod 310 extending from the operating rod 110 slides sequentially through the first guide cylinder 440, the gap between the two pushing rollers 430, and the second guide cylinder 440, finally passing through the operating rod 110. The two guide cylinders 440 guide the elastic support rod 310 held between the two pushing rollers 430, preventing it from moving erratically.

[0054] Please see Figure 6In this embodiment, the pulling part 500 includes an expansion body 510. The expansion body 510 is ellipsoidal and is initially compressed within the elastic support rod 310. The expansion body 510 can expand radially after disengaging from the elastic support rod 310.

[0055] Specifically, the expansion body 510 includes multiple elastic steel bars, which are interconnected to form an ellipsoidal expansion body 510. In a specific implementation, a pull rope 520 can be installed on the expansion body 510 (see...). Figure 6 (See Figure c). When the expansion body 510 disengages from the operating lever, it can be pulled by the pull rope 520. Alternatively, a limiting component can be provided at the open end of the operating lever (see Figure c). Figure 6 (Figure b) The expansion body 510 detached from the operating lever, causing the pulling to fail.

[0056] Using this type of expander 510 has the following advantages:

[0057] 1. If the steel bar has a certain degree of hardness, it can ensure that the foreign object can be pulled out smoothly after expansion;

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

[0059] In other embodiments, the inflator 510 can also be in other forms, such as an airbag, which expands by inflating the airbag. Alternatively, it can be an umbrella-shaped body, which opens up into an umbrella shape when the inflator 510 detaches from the elastic support rod 310, thereby achieving the purpose of pulling on foreign objects.

[0060] In this embodiment, the deformation drive mechanism 600 includes a piston plate 610 and an inflation device 620. The piston plate 610 is slidably disposed within the elastic support rod 310 and connected to the expansion body 510. The inflation device 620 communicates with the inner cavity of the elastic support rod 310 via an air pipe. When air is injected into the elastic support rod 310, it pushes the piston plate 610 to slide towards the outlet, driving the expansion body 510 to detach from the elastic support rod 310 and expand. Of course, in specific implementations, the inflation device 620 can also be other pumps capable of fluid suction, and the gas injected into the elastic support rod 310 can be a suitable fluid, such as water or oil.

[0061] In specific implementation, the deformation drive mechanism 600 may also include a limiting plate 630. The limiting plate 630 is disposed inside the elastic support rod 310 and located on the side of the piston plate 610 near the outlet. It is used to limit the sliding range of the piston plate 610 and prevent the piston plate 610 from disengaging from the elastic support rod 310.

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

[0063] Instructions for using the above-mentioned nasal foreign body removal device:

[0064] In use, the two support plates are driven to close by the operating lever 110, and then inserted into the same nasal cavity. Next, the two support plates are driven to separate by the operating lever 110 to expand the nasal cavity. Then, the power source 410 is rotated to push 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, it stops pushing after the elastic push rod passes the foreign object. Then, the inflation device 620 is started to inflate until the expansion body 510 is pushed out. The expansion body 510 expands and deforms outward. When the entire nasal cavity foreign body remover is driven to move out of the nasal cavity, the foreign object can be brought out by the expanded pulling part 500, thus completing the successful removal of the foreign object.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A nasal foreign body removal device, characterized in that, include: The operating assembly includes two mutually hinged operating levers, each lever having a mounting end and an operating end; The support plate assembly includes two support plates, which are respectively fixed to the mounting ends of two operating rods. The support plates are hollow structures, and their front end faces are provided with outlets communicating with the inner cavity. The elastic strut assembly includes two sets of elastic struts, the head end of each set of elastic struts is disposed inside the support plate and can extend out from the outlet, and the elastic struts can bend and deform when subjected to lateral pressure; A pushing mechanism, mounted on one of the operating levers and connected to the elastic support rod, is used to drive the elastic support rod to extend or retract into the support plate; A pulling part is disposed at the first end of the elastic support rod and can be exposed outside the elastic support rod; the pulling part is capable of expanding and deforming. A deformation drive mechanism, connected to the pulling part, is used to drive the pulling part to expand and deform; The tail end of the elastic support rod can slide through the operating rod, and the pushing mechanism is connected to the two sets of elastic support rods to synchronously drive the two sets of elastic support rods to extend or retract. The propulsion mechanism includes: Rotary power source; Two mounting shafts are rotatable and are arranged in parallel between the two operating levers; Two push rollers are respectively fitted and fixed on two mounting shafts; The rotary power source is connected to one of the mounting shafts to drive the mounting shaft to rotate; the middle part of the two sets of elastic support rods extends from the operating rod and passes through the gap between the two push rollers, and is tactilely connected to the two push rollers; when the push rollers roll, they can synchronously push the two sets of elastic support rods to move. The pushing mechanism also includes two guide cylinders, which are spaced apart; the elastic support rod extending from the operating rod slides sequentially through the first guide cylinder, the gap between the two pushing rollers and the second guide cylinder, and finally passes through the operating rod; The pulling part includes an expandable body, which is ellipsoidal in shape and is initially compressed inside the elastic support rod; the expandable body can expand radially after being released from the elastic support rod.

2. The nasal foreign body removal device according to claim 1, characterized in that, Each set of elastic struts includes multiple elastic struts, with the ends of the multiple elastic struts arranged side by side at intervals within the support plate.

3. The nasal foreign body removal device according to claim 1, characterized in that, The expansion body comprises multiple elastic steel bars, which are connected to each other to form an ellipsoidal expansion body.

4. The nasal foreign body removal device according to claim 3, characterized in that, The deformation driving mechanism includes: The piston plate is slidably disposed within the elastic support rod and connected to the expansion body; An inflation device is connected to the inner cavity of the elastic support rod via an air pipe; when air is inflated into the elastic support rod, it can push the piston plate to slide towards the outlet, driving the expander to detach from the elastic support rod and expand.

5. The nasal foreign body removal device according to claim 4, characterized in that, The deformation drive mechanism also includes a limiting plate, which is disposed inside the elastic strut and located on the side of the piston plate near the outlet.

6. The nasal foreign body removal device according to claim 1, characterized in that, The end of the elastic strut is provided with a rounded chamfer.

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