Nasal foreign body retrieval device
By designing the connecting tube assembly and pin structure of the nasal cavity foreign body retrieval device, the slippage problem of existing devices when grasping irregular or deeply inserted foreign bodies has been solved, achieving stable gripping and efficient removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN UNIV FIRST HOSPITAL
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-24
AI Technical Summary
Existing nasal foreign body retrieval devices are prone to slipping when handling irregularly shaped or soft foreign bodies, and are difficult to grasp foreign bodies that are deeply located or small.
A nasal foreign body retrieval device was designed, comprising a connecting tube assembly, a handle assembly, and a pin. By cooperating with the foreign body retrieval ring and the pin, the device achieves the switching between the initial state and the retrieval state, ensuring that the foreign body retrieval ring can smoothly enter the space surrounding the foreign body and cooperate with the foreign body to hold it in the retrieval state.
It improves the accurate positioning and stable clamping of foreign objects, reduces the possibility of slippage, and improves the efficiency and safety of removal. It is suitable for different nasal cavity sizes and foreign object shapes.
Smart Images
Figure CN224540287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and more specifically, to a nasal foreign body removal device. Background Technology
[0002] In the medical field, especially in otolaryngology, nasal foreign body retrieval devices are commonly used auxiliary tools for the safe and quick removal of foreign objects from the nasal cavity. Current technology typically uses nasal forceps or clips to grasp nasal foreign bodies; this is the most traditional and common extraction tool, mainly composed of two gripping parts. The opening and closing are controlled by a handle, allowing the foreign body to be grasped and removed from the nasal cavity. However, it has some significant drawbacks in practical use: nasal forceps may not be effective at grasping irregularly shaped or soft-textured foreign bodies, especially when the foreign body surface is smooth or moist, making slippage likely. Some nasal foreign bodies are unsuitable for nasal forceps extraction due to their size or location, such as those that are too small or located deep within the nasal cavity and difficult to reach. Utility Model Content
[0003] The main purpose of this invention is to provide a nasal foreign body retrieval device to solve the problem of difficulty in retrieval of nasal foreign bodies due to their shape, texture, and location in the prior art.
[0004] To achieve the above objectives, according to one aspect of the present invention, a nasal foreign body retrieval device is provided. The nasal foreign body retrieval device includes: a connecting tube assembly, a first end of which is provided with a foreign body removal ring; a handle assembly, a portion of which is connected to a second end of the connecting tube assembly; and a pin, which is disposed along the length of the connecting tube assembly and located within the connecting tube assembly. One end of the pin is connected to another portion of the handle assembly. The pin has an initial state of avoiding the foreign body removal ring and a gripping state of being located within the foreign body removal ring to grip the nasal foreign body. The handle assembly is used to switch the pin between the initial state and the gripping state.
[0005] Furthermore, the connecting tube assembly includes: a first connecting tube, the first end of which is connected to the handle assembly; and a second connecting tube, the second end of which is detachably connected to the first end of the first connecting tube, and the second end of the second connecting tube is connected to the foreign object removal ring.
[0006] Furthermore, the foreign object removal ring is circumferentially arranged along the connecting pipe assembly of the portion thereof, the foreign object removal ring has an arc-shaped concave surface, the major diameter of the foreign object removal ring is a, the minor diameter is b, wherein 15mm≤a≤25mm, 3mm≤b≤6mm.
[0007] Furthermore, the handle assembly includes: a fixed handle, one end of which is connected to the second end of the connecting tube assembly; and a movable handle, which is movably disposed relative to the fixed handle and connected to one end of the ejector pin. The movable handle is operated to rotate relative to the fixed handle to switch the ejector pin between an initial state and a clamping state.
[0008] Furthermore, the connecting tube assembly has a notch structure, through which part of the movable handle can pass within the connecting tube assembly.
[0009] Furthermore, the active handle is rotated toward the fixed handle to move the ejector pin toward the foreign object removal ring.
[0010] Furthermore, the handle assembly also includes: a connector located between the fixed handle and the movable handle, one end of the connector being rotatably connected to the fixed handle, and the other end of the connector being detachably connected to the movable handle, the connector having a locking position for locking the fixed handle and the movable handle, and an unlocking position for unlocking the fixed handle and the movable handle, wherein when the connector is in the locking position, the ejector pin is in the initial state, and when the ejector pin is in the clamping state, the connector is in the unlocking position.
[0011] Furthermore, the connector has a clearance notch, and the movable handle has a protrusion structure. When the connector is in the locked position, the protrusion structure is located within the clearance notch.
[0012] Furthermore, the nasal foreign body retrieval device also includes: an illumination element disposed on the side of the connecting tube assembly near the foreign body retrieval ring; a switch assembly connected to the connecting tube assembly and electrically connected to the illumination element; and a power supply assembly connected to the connecting tube assembly and electrically connected to the illumination element.
[0013] Furthermore, the nasal foreign body retrieval device also includes: an elastic element, one end of which abuts against the end of the connecting tube assembly facing the fixed handle, and the other end of which abuts against the top of the movable handle.
[0014] By applying the technical solution of this utility model, a foreign body removal ring is set at the first end of the connecting tube assembly, and the ejector pin is set along the length direction of the connecting tube assembly and located inside the connecting tube assembly, so that the foreign body removal ring and one end of the ejector pin are set opposite each other. The connecting tube assembly is controlled by part of the handle assembly, and the ejector pin is controlled by another part of the handle assembly, so that the ejector pin has an initial state and a clamping state. When the ejector pin is in the initial state, the ejector pin avoids the foreign body removal ring, ensuring that the foreign body removal ring can smoothly enter the space around the foreign body. When the ejector pin is in the clamping state, the ejector pin can be pushed into the foreign body removal ring, and cooperate with the foreign body removal ring to clamp the nasal foreign body, reducing the possibility of foreign body slippage, realizing accurate positioning and stable clamping of nasal foreign bodies, improving the efficiency and safety of removal, and solving the problem of difficulty in clamping nasal foreign bodies due to their shape, texture and position in the prior art. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0016] Figure 1 A schematic diagram of the structure of a first embodiment of the nasal foreign body removal device according to the present invention is shown;
[0017] Figure 2 A half-sectional structural schematic diagram of a second embodiment of the nasal foreign body removal device according to the present invention is shown;
[0018] Figure 3 A partial structural schematic diagram of a second embodiment of the nasal foreign body removal device according to the present invention is shown;
[0019] Figure 4 A side view of another part of the second embodiment of the nasal foreign body removal device according to the present invention is shown;
[0020] Figure 5 A front structural schematic diagram of another part of a second embodiment of the nasal foreign body removal device according to the present invention is shown.
[0021] The above figures include the following reference numerals:
[0022] 10. Connecting pipe assembly; 11. First connecting pipe; 12. Second connecting pipe; 13. Notch structure;
[0023] 20. Handle assembly; 21. Fixed handle; 22. Movable handle; 221. Protruding structure; 23. Connector; 231. Clearance notch;
[0024] 30. Threshold pin;
[0025] 40. Foreign object removal ring;
[0026] 50. Lighting components;
[0027] 60. Switch assembly;
[0028] 70. Power supply components;
[0029] 80. Elastic components;
[0030] 100. Nasal foreign body. Detailed Implementation
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0034] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.
[0035] Combination Figures 1 to 5 As shown, according to a specific embodiment of the present invention, a nasal foreign body removal device is provided.
[0036] Specifically, such as Figure 1 , Figure 2 As shown, the nasal foreign body retrieval device includes: a connecting tube assembly 10, with a foreign body removal ring 40 at the first end of the connecting tube assembly 10; a handle assembly 20, a portion of which is connected to the second end of the connecting tube assembly 10; and a pin 30, which is arranged along the length of the connecting tube assembly 10 and located inside the connecting tube assembly 10. One end of the pin 30 is connected to another portion of the handle assembly 20. The pin 30 has an initial state of avoiding the foreign body removal ring 40 and a gripping state of being located inside the foreign body removal ring 40 to grip the nasal foreign body 100. The handle assembly 20 is used to drive the pin 30 to switch between the initial state and the gripping state.
[0037] In this embodiment, a foreign body removal ring 40 is provided at the first end of the connecting tube assembly 10, and the ejector pin 30 is provided along the length direction of the connecting tube assembly 10 and located inside the connecting tube assembly 10, so that one end of the foreign body removal ring 40 and the ejector pin 30 are positioned opposite each other. The connecting tube assembly 10 is controlled by part of the handle assembly 20, and the ejector pin 30 is controlled by another part of the handle assembly 20, so that the ejector pin 30 has an initial state and a clamping state. When the ejector pin 30 is in the initial state, the ejector pin 30 avoids the foreign body removal ring 40, ensuring that the foreign body removal ring 40 can smoothly enter the space around the foreign body. When the ejector pin 30 is in the clamping state, the ejector pin 30 can be pushed into the foreign body removal ring 40 and cooperate with the foreign body removal ring 40 to clamp the nasal foreign body 100, reducing the possibility of foreign body slippage, realizing accurate positioning and stable clamping of the nasal foreign body 100, improving the efficiency and safety of removal, and solving the problem of difficulty in clamping nasal foreign bodies due to their shape, texture and position in the prior art.
[0038] Furthermore, the connecting tube assembly 10 includes: a first connecting tube 11, the first end of which is connected to the handle assembly 20; and a second connecting tube 12, the second end of which is detachably connected to the first end of the first connecting tube 11, and the second end of the second connecting tube 12 is connected to the foreign object removal ring 40.
[0039] Combination Figure 3 , Figure 4As shown, the first connecting tube 11 is fixedly connected to the handle assembly 20, ensuring the stability and ease of operation of the handle assembly 20. The detachable design of the second connecting tube 12 and the first connecting tube 11 facilitates the cleaning and disinfection of the device after use. In particular, the detachability of the second connecting tube 12, as a component that directly contacts foreign objects and the nasal cavity, ensures that the part that goes deep into the nasal cavity can be thoroughly cleaned, avoiding cross-infection.
[0040] In one embodiment, the first connecting pipe 11 and the second connecting pipe 12 are connected by threads to achieve a detachable connection. The second end of the first connecting pipe 11 is provided with an internal thread, and the first end of the second connecting pipe 12 is provided with an external thread. Alternatively, the second end of the first connecting pipe 11 is provided with an external thread, and the first end of the second connecting pipe 12 is provided with an internal thread.
[0041] In another embodiment, the first connecting pipe 11 and the second connecting pipe 12 can be fitted with elastic buckles or pins and corresponding slots or holes to achieve quick connection and release between the first connecting pipe 11 and the second connecting pipe 12. Specifically, one of the first connecting pipe 11 and the second connecting pipe 12 is provided with an elastic buckle or pin, and the other of the first connecting pipe 11 and the second connecting pipe 12 is provided with a slot or hole.
[0042] In another embodiment, the first connecting tube 11 and the second connecting tube 12 can be detachably connected by magnetic attraction. Specifically, the second end of the first connecting tube 11 is provided with a first magnetic attraction element, and the first end of the second connecting tube 12 is provided with a second magnetic attraction element.
[0043] like Figure 5 As shown, the foreign object removal ring 40 is arranged circumferentially along a portion of the connecting pipe assembly 10. The foreign object removal ring 40 has an arc-shaped concave surface. The major diameter of the foreign object removal ring 40 is a, and the minor diameter is b, wherein 15mm≤a≤25mm and 3mm≤b≤6mm.
[0044] Specifically, the concave surface provides a more stable contact surface, ensuring that the foreign object removal ring 40 can firmly wrap around the foreign object when it is being removed. Even if the surface of the foreign object is smooth or wet, it can effectively prevent it from slipping out. At the same time, the size of the foreign object removal ring 40 is not limited, and different sizes of foreign object removal ring 40 can be replaced according to the size of the nasal cavity to improve the applicability and universality of the device.
[0045] Furthermore, the handle assembly 20 includes: a fixed handle 21, one end of which is connected to the second end of the connecting tube assembly 10; and a movable handle 22, which is movably disposed relative to the fixed handle 21 and is connected to one end of the ejector pin 30. The movable handle 22 is operated to rotate relative to the fixed handle 21 to switch the ejector pin 30 between an initial state and a clamping state.
[0046] Specifically, the movable handle 22 is rotatably configured relative to the fixed handle 21, and the movable handle 22 is rotatably connected to the fixed handle 21 via a pin. The rotatability of the movable handle 22 relative to the fixed handle 21 allows for easy switching of the state of the ejector pin 30 through simple manual rotation, improving the control precision during the nasal foreign body extraction process and reducing the difficulty of operation.
[0047] Furthermore, the connecting tube assembly 10 is provided with a notch structure 13, and a portion of the movable handle 22 can pass through the notch structure 13 and be located inside the connecting tube assembly 10.
[0048] Specifically, the notch structure 13 is provided on the first connecting tube 11. The notch structure 13 is located near the movable handle 22 and is used for the top of the movable handle 22 to pass through. The top of the movable handle 22 is connected to the ejector pin 30. This arrangement results in a compact structure that saves space.
[0049] Furthermore, the movable handle 22 is rotated toward the fixed handle 21 so that the ejector pin 30 moves toward the foreign object removal ring 40.
[0050] Specifically, this configuration allows for the control of the angle at which the movable handle 22 rotates toward the fixed handle 21, thereby controlling the distance the ejector pin 30 moves toward the foreign body removal ring 40. This avoids insufficient or excessive advancement of the ejector pin 30, prevents insufficient clamping force between the ejector pin 30 and the foreign body removal ring 40, or prevents the ejector pin 30 from accidentally injuring nasal tissue, and makes the fine-tuning coordination between the ejector pin 30 and the foreign body removal ring 40 more stable.
[0051] Furthermore, the handle assembly 20 also includes a connector 23, which is located between the fixed handle 21 and the movable handle 22. One end of the connector 23 is rotatably connected to the fixed handle 21, and the other end of the connector 23 is detachably connected to the movable handle 22. The connector 23 has a locking position that locks the fixed handle 21 and the movable handle 22, and an unlocking position that unlocks the fixed handle 21 and the movable handle 22. When the connector 23 is in the locking position, the ejector pin 30 is in the initial state. When the ejector pin 30 is in the clamping state, the connector 23 is in the unlocking position.
[0052] Specifically, one end of the connector 23 is rotatably connected to the fixed handle 21 via a rotating pin, and the other end of the connector 23 is detachably connected to the movable handle 22. The connector 23 has a locked position and an unlocked position. This feature allows the operator to lock the fixed handle 21 and the movable handle 22 when needed, ensuring that the ejector pin 30 remains in its initial state and preventing the ejector pin 30 from unnecessarily contacting the foreign object removal ring 40. When the ejector pin 30 needs to be moved to the clamping position, the operator can unlock the connector 23, ensuring the stability of the operation process.
[0053] Furthermore, the connector 23 is provided with a clearance notch 231, and the movable handle 22 is provided with a protrusion structure 221. When the connector 23 is in the locked position, the protrusion structure 221 is located within the clearance notch 231.
[0054] Specifically, when the protruding structure 221 is located within the clearance notch 231, the connector 23 is in the locked position, ensuring that the movable handle 22 will not move accidentally due to external force or careless operation when the ejector pin 30 is in the initial state. This avoids potential instability during operation and improves the safety of the device in non-operational states. When it is necessary to switch the ejector pin 30 from the initial state to the clamping state, the operator only needs to operate the connector 23 to separate the protruding structure 221 from the clearance notch 231, and then operate the movable handle 22 to rotate towards the fixed handle 21, thereby moving the ejector pin 30.
[0055] Furthermore, the nasal foreign body retrieval device also includes: an illumination element 50, which is disposed on the side of the connecting tube assembly 10 near the foreign body removal ring 40; a switch assembly 60, which is connected to the connecting tube assembly 10 and electrically connected to the illumination element 50; and a power supply assembly 70, which is connected to the connecting tube assembly 10 and electrically connected to the illumination element 50.
[0056] Specifically, the illumination element 50 is positioned on the side of the connecting tube assembly 10 near the foreign body removal ring 40, directly focusing the light source onto the surgical area, significantly improving the operator's visual clarity during the procedure. The brightness and on / off state of the illumination element 50 are controlled by the switch assembly 60, allowing the doctor to flexibly adjust the illumination intensity according to different operational needs and the actual conditions inside the nasal cavity. The power supply assembly 70 provides a stable and independent power source for the illumination element 50.
[0057] Furthermore, the nasal foreign body retrieval device also includes: an elastic element 80, one end of which abuts against the end of the connecting tube assembly 10 facing the fixed handle 21, and the other end of which abuts against the top of the movable handle 22.
[0058] Specifically, the elastic element 80 is a return spring. When the ejector pin 30 is in the initial state, the connector 23 is in the locked position. At this time, the distance between the movable handle 22 and the fixed handle 21 is fixed, and the elastic element 80 is in the compressed state. When it is necessary to clamp foreign objects, the connector 23 is in the unlocked position. At this time, the elastic element 80 provides elastic restoring force to the top of the movable handle 22 and the ejector pin 30 to move toward the foreign object removal ring 40. The movable handle 22 is rotated toward the fixed handle 21 to drive the ejector pin 30 to move toward the foreign object removal ring 40, so as to realize the clamping of foreign objects by the ejector pin 30 and the foreign object removal ring 40.
[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0060] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.
[0061] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A nasal foreign body removal device, characterized in that, include: A connecting tube assembly (10) is provided at its first end with a foreign object removal ring (40). Handle assembly (20), part of which is connected to the second end of the connecting tube assembly (10); A push pin (30) is arranged along the length direction of the connecting tube assembly (10). The push pin (30) is located inside the connecting tube assembly (10). One end of the push pin (30) is connected to another part of the handle assembly (20). The push pin (30) has an initial state of avoiding the foreign body removal ring (40) and a clamping state of being located inside the foreign body removal ring (40) to clamp the nasal foreign body (100) with the foreign body removal ring (40). The handle assembly (20) is used to drive the push pin (30) to switch between the initial state and the clamping state.
2. The nasal foreign body removal device according to claim 1, characterized in that, The connecting pipe assembly (10) includes: A first connecting tube (11) is connected at its first end to the handle assembly (20); The second connecting tube (12) is detachably connected to the first end of the first connecting tube (11), and the second end of the second connecting tube (12) is connected to the foreign object removal ring (40).
3. The nasal foreign body removal device according to claim 1, characterized in that, The foreign object removal ring (40) is arranged circumferentially along a portion of the connecting tube assembly (10). The foreign object removal ring (40) has an arc-shaped concave surface. The major diameter of the foreign object removal ring (40) is a, and the minor diameter is b, wherein 15mm≤a≤25mm and 3mm≤b≤6mm.
4. The nasal foreign body removal device according to claim 1, characterized in that, The handle assembly (20) includes: A fixed handle (21) is provided, one end of which is connected to the second end of the connecting pipe assembly (10); An active handle (22) is movably disposed relative to the fixed handle (21). The active handle (22) is connected to one end of the ejector pin (30). The active handle (22) is operated to rotate relative to the fixed handle (21) so that the ejector pin (30) switches between the initial state and the clamping state.
5. The nasal foreign body removal device according to claim 4, characterized in that, The connecting tube assembly (10) is provided with a notch structure (13), and part of the movable handle (22) can pass through the notch structure (13) and be located inside the connecting tube assembly (10).
6. The nasal foreign body removal device according to claim 4, characterized in that, Operate the movable handle (22) to rotate toward the fixed handle (21) so that the ejector pin (30) moves toward the foreign object removal ring (40).
7. The nasal foreign body removal device according to any one of claims 4-6, characterized in that, The handle assembly (20) also includes: A connector (23) is located between the fixed handle (21) and the movable handle (22). One end of the connector (23) is rotatably connected to the fixed handle (21), and the other end of the connector (23) is detachably connected to the movable handle (22). The connector (23) has a locking position that locks the fixed handle (21) and the movable handle (22), and an unlocking position that unlocks the fixed handle (21) and the movable handle (22). When the connector (23) is in the locking position, the ejector pin (30) is in the initial state. When the ejector pin (30) is in the clamping state, the connector (23) is in the unlocking position.
8. The nasal foreign body removal device according to claim 7, characterized in that, The connector (23) is provided with a clearance notch (231), and the movable handle (22) is provided with a protrusion structure (221). When the connector (23) is in the locked position, the protrusion structure (221) is located in the clearance notch (231).
9. The nasal foreign body removal device according to claim 8, characterized in that, The nasal foreign body removal device also includes: An illumination element (50) is disposed on the side of the connecting tube assembly (10) near the foreign object removal ring (40); A switch assembly (60) is connected to the connecting pipe assembly (10) and electrically connected to the lighting element (50); The power supply component (70) is connected to the connecting pipe assembly (10) and electrically connected to the lighting component (50).
10. The nasal foreign body removal device according to claim 4, characterized in that, The nasal foreign body removal device also includes: An elastic element (80) is provided, one end of which abuts against the end of the connecting tube assembly (10) facing the fixed handle (21), and the other end of which abuts against the top of the movable handle (22).