Expander for auditory meatus examination
By designing an ear canal dilator with a handle and pawl structure, the discomfort and damage problems during ear canal examination in the prior art have been solved, and a comfortable and safe ear canal opening operation has been achieved.
Patent Information
- Application Number
- CN202423044387.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Current methods of ear canal examination use cotton swabs or tongue depressors to apply pressure to the edge of the ear canal or the tragus, which can cause discomfort or damage to the ear canal.
An ear canal dilator for examination has been designed, which adopts a support handle and pawl structure. The opening angle can be fixed and stored by the engagement or disengagement of the rack and pawl, thus avoiding direct pressure.
It improves the comfort and safety of ear canal examinations and reduces the risk of damage to the ear canal.
Smart Images
Figure CN223845646U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to an ear canal examination dilator. BACKGROUND
[0002] During ear canal examination, doctors usually need to open the narrow part of the ear canal or the protruding part of the eardrum so that the examination device can be inserted into the ear canal for exploration. However, the existing ear canal examination method usually uses a cotton swab or a tongue depressor to apply pressure to the edge of the ear canal or the eardrum, which is not only inconvenient to operate, but also easily causes serious discomfort to the patient, and may even cause damage to the ear canal. Therefore, there is an urgent need for a dilator that can conveniently and comfortably open the narrow part of the ear canal or the protruding part of the eardrum. SUMMARY
[0003] The problem to be solved by the present application is that the existing ear canal examination method uses a cotton swab or a tongue depressor to apply pressure to the edge of the ear canal or the eardrum, which easily causes serious discomfort or damage to the ear canal.
[0004] To solve the above technical problems, the present application provides an ear canal examination dilator, which comprises two support handles, one end of the two support handles is connected by a hinge, the support handle comprises a working part, the working part is composed of a non-contact part and a contact part, the contact part is arranged at the end of the non-contact part and is bent outward along the vertical direction, the side of the connecting part of one of the support handles is parallelly arranged with a gear rack, the side of the connecting part of the other support handle is formed with a slot for the gear rack to pass through, a pawl is arranged inside the slot, the pawl is rotatably connected to the inside of the slot by a pin shaft or a rivet, and the pawl can be in meshing connection with the gear rack or separated from the gear rack.
[0005] Since the ear canal examination dilator of the present application is designed with support handles having a gear rack and a pawl respectively, it can not only replace the cotton swab or tongue depressor to improve the opening comfort, but also can be conveniently fixed or stored by the meshing connection or separation between the pawl and the gear rack, thereby solving the problem that the existing ear canal examination method uses a cotton swab or a tongue depressor to apply pressure to the edge of the ear canal or the eardrum, which easily causes serious discomfort or damage to the ear canal. BRIEF DESCRIPTION OF DRAWINGS
[0006] Figure 1 It is a schematic diagram of the perspective structure of the embodiment.
[0007] Figure 2 It is a schematic diagram of the top view structure of the embodiment.
[0008] Figure 3 It is a schematic diagram of the perspective structure of the support handle.
[0009] Figure 4 Fig. 2 is a schematic diagram of the engagement state of the rack and the pawl.
[0010] Figure 5 Fig. 3 is a schematic diagram of the disengagement state of the rack and the pawl.
[0011] In the figure: 1, handle; 2, rack; 3, pawl; 4, push piece; 5, notch; 6, pressing piece; 7, contact part; 8, non-contact part; 9, connecting part; 10, holding part. DETAILED DESCRIPTION
[0012] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0013] The present application relates to an ear canal examination dilator, as shown in Figures 1-5 The dilator includes two handles 1, which are parallel and mirror-symmetric to each other. One end of the two handles 1 is connected by a hinge, so that the handle 1 can be freely opened and closed like scissors or pliers. The handle 1 is composed of a working part, a connecting part 9, and a holding part 10.
[0014] The working part is the main functional part of the handle 1, which is used to open the narrow part of the ear canal or the part where the tragus protrudes. The working part is composed of a non-contact part 8 and a contact part 7. The cross-sectional shape of the non-contact part 8 is semicircular, and the contact part 7 is shaped like an outwardly turned circular arc. The contact part 7 is arranged at the end of the non-contact part 8 and is bent outwardly along the vertical direction. In order to reduce the discomfort caused by the contact between the contact part 7 and the patient's skin, the contact part 7 can be sleeved with a rubber sleeve or coated with a skin-friendly coating.
[0015] The connecting part 9 is a transition part of the handle 1, which connects the working part and the holding part 10. The cross-section of the connecting part 9 is a long strip structure, which has certain strength and toughness to ensure the stability and durability of the handle 1 during use.
[0016] The holding part 10 is the part of the handle 1 that the doctor holds. The cross-section of the holding part 10 is a circular ring structure, which is convenient for the doctor to hold and operate. The surface of the holding part 10 can be provided with anti-slip texture or coating to improve the stability and comfort of holding.
[0017] In order to keep the stable opening posture of the ear canal, the side of the connecting part 9 of one of the support handles 1 is arranged with a circular arc-shaped rack 2, the side of the connecting part 9 of the other support handle 1 is formed with a slot 5 for the rack 2 to pass through, the inside of the slot 5 is arranged with a circular arc-shaped pawl 3, one end of the pawl 3 is formed with a push piece 4 for facilitating finger pressing, the pawl 3 is rotationally connected to the inside of the slot 5 through a pin shaft or a rivet, the pawl 3 can be in meshing connection with the rack 2 or separated from each other, when the pawl 3 is in meshing connection with the rack 2, the rack 2 can only move in one direction, at this time, the working part of the support handle 1 can be positioned in the opening angle after being opened, when it is needed to fold the working part of the support handle 1, the pawl 3 can be separated from the rack 2 by the push piece 4.
[0018] In order to avoid the pawl 3 from malfunctioning, one side of the slot 5 is arranged with a pressing piece 6 for elastically limiting the pawl 3, the pressing piece 6 has a certain elasticity and restoring force, and can stably limit the pawl 3, when it is needed to separate the pawl 3 from the rack 2, the elastic force of the pressing piece 6 can be overcome by the push piece 4, when the push piece 4 loses the external pushing force, the deformed pressing piece 6 drives the pawl 3 to reset, so that the pawl 3 is again in meshing connection with the rack 2.
[0019] The specific operation steps of the dilator are as follows:
[0020] (1) Preparation
[0021] Firstly, ensure that the two contact parts 7 of the dilator are in the folded state, and the pawl 3 is in meshing connection with the rack 2, so as to facilitate the subsequent operation, then the operator thoroughly cleans his hands to avoid bringing bacteria into the patient's ear canal, at the same time, explains the operation process to the patient and inquires whether he has any discomfort or allergy history, and ensures that the patient understands and cooperates with the operation.
[0022] (2) Positioning the dilator
[0023] Firstly, ask the patient to take a comfortable sitting or lying posture, and slightly tilt his head to one side to better expose the ear canal, then hold the pinch part 10 of the dilator in hand, and gently place the contact part 7 of the working part at the patient's ear canal, and ensure that the contact part 7 is closely attached to the ear canal, but avoid excessive compression.
[0024] (3) Opening the ear canal
[0025] Then, slowly and evenly force the two contact parts 7 apart through the pinch part 10, at this time, the contact part 7 will begin to open the ear canal, in this process, attention should be paid to the patient's reaction to ensure that he has no obvious discomfort, at the same time, according to the size and shape of the ear canal, appropriately adjust the opening angle of the support handle 1, at this time, the pawl 3 is in meshing connection with the rack 2, and can realize the follow-up positioning of the opening angle as the opening angle increases.
[0026] (4) Perform examination
[0027] After the opening angle is positioned, the support handle 1 should be ensured to be stable to avoid shaking or displacement during the examination process, and then a suitable examination instrument (such as an otoscope, an endoscope, etc.) is used to probe into the ear canal. In this process, the inside of the ear canal should be carefully observed, and any abnormal findings should be recorded.
[0028] (5) End operation
[0029] After the examination is completed, the dial 4 is gently turned to separate the pawl 3 from the rack 2, and then the two support handles 1 are gradually folded together through the pinch part 10 until they are completely folded, and then the dilator is cleaned and disinfected with medical alcohol or other appropriate disinfectant for next use.
[0030] In general, terminology can be understood at least in part from an understanding of a context of words or phrases used throughout the disclosure. For example, at least in part according to a context, the terminology "one or more" as used herein throughout can be taken to describe any feature, structure, or characteristic in a singular sense or can be taken to describe combinations of features, structures or characteristics in a plural sense. Similarly, terminology such as "a" or "said" can be understood, at least in part, depending on a context, either to convey a singular or a plural understanding.
[0031] It should be readily understood that "on," "above," and "on top of" in the present disclosure are to be interpreted in the broadest possible sense to the extent that "on" not only means "directly on" but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "on top of" not only includes the meaning of "above" or "on top of" but also can include the meaning of "above" or "on top of" without intermediate features or layers therebetween (i.e., directly on).
[0032] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and 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 application.
Claims
1. An ear canal inspection dilator characterized by: The utility model provides an endoscope supporting handle, which comprises two supporting handles (1), one end of the two supporting handles (1) is connected through a hinge, the supporting handle (1) comprises a working part, the working part is composed of a non-contact part (8) and a contact part (7), the contact part (7) is arranged at the end of the non-contact part (8) and is outwardly bent along the vertical direction of the non-contact part (8), the side of the connecting part (9) of one of the supporting handles (1) is arranged in parallel with a rack (2), the side of the connecting part (9) of the other supporting handle (1) is formed with a notch (5) for the rack (2) to pass through, a pawl (3) is arranged in the notch (5), the pawl (3) is rotationally connected to the inside of the notch (5) through a pin shaft or a rivet, and the pawl (3) can be in meshing connection with the rack (2) or separated from the rack (2).
2. The ear canal inspection dilator according to claim 1, characterized in that: One end of the pawl (3) is formed with a pressing piece (4) for facilitating finger pressing.
3. The ear canal inspection dilator according to claim 1, characterized in that: One side of the notch (5) is arranged with a pressing piece (6) for elastically limiting the pawl (3).
4. Aural speculum according to any one of claims 1-3, characterized in that: The rack (2) and the pawl (3) are both in a circular arc structure.
5. The ear canal inspection dilator according to claim 1, characterized in that: The two supporting handles (1) are parallel to each other and mirror-symmetric.
6. The ear canal inspection dilator according to claim 1, characterized in that: The cross-sectional shape of the non-contact part (8) is a half-ellipse, and the contact part (7) is in an outwardly turned circular arc shape.
7. The ear speculum of claim 1, wherein: The contact part (7) is sleeved with a rubber sleeve or coated with a skin-friendly coating.
8. Aural speculum according to any one of claims 5 to 7, characterised in that: The supporting handle (1) further comprises a clamping part (10), and the cross section of the clamping part (10) is in a circular ring structure for facilitating doctors to hold and operate.
9. The ear canal inspection dilator according to claim 8, characterized in that: The supporting handle (1) further comprises a connecting part (9), and the cross section of the connecting part (9) is in a strip-shaped structure for connecting the working part and the clamping part (10).