RU226157U1 - Cannula for irrigating the ear canal - Google Patents

Abstract

The utility model relates to the field of medicine, in particular to otorhinolaryngology, and can be used to remove wax plugs from the ear canal. The proposed cannula for washing the ear canal is made of hard material, biologically and chemically inert; has a tube with a diameter of 1.6 mm, at one end of which there is a pavilion for connecting a syringe. The other end of the tube (working end) is open and has an olive-shaped thickening with a diameter of 2 mm. The working end is bent at an obtuse angle. The technical result is a reduction in trauma when washing the ear canal. 1 Ave., 3 Ill.

Description

The utility model relates to the field of medicine, in particular to otorhinolaryngology, and can be used to remove wax plugs from the ear canal.

There is a known method of washing the ears (including for washing out wax plugs) using a Janet syringe. The Janet syringe is similar to a regular injection syringe, but usually has a larger volume. It is made in the form of a hollow cylinder, one side of which is topped with a cone for nozzles, and the end side is open, where the rod with the piston is inserted.

The washing procedure is carried out with the patient sitting. To straighten the natural curve of the external auditory canal, the auricle is pulled back and up in adults, and back and down in children. The tip of the syringe is inserted into the external auditory canal no deeper than 1 cm. The liquid stream is directed in separate portions, jerkily, under slight pressure, to the postero-superior wall of the external auditory canal, without creating excessive pressure, because In this case, sharp pain in the ear and rupture of the eardrum may occur.

A device is also known - a tip for washing the ears (https://ashamed-grupp.promportal.su/goods/49887459/nakonechnik-dlya-promivaniya-ushey), intended for washing the ENT organs, in particular the ear cavity. The tip fits onto record type syringes with volumes of 2 ml, 5 ml, 10 ml and 20 ml with a smooth spout. Made of stainless steel, it is a curved tube with an open end and a pavilion for attaching a syringe.

We accepted this device as a prototype.

The disadvantages of the prototype are the risk of injury when using the device, low efficiency in washing out plugs from the ear canal compared to the device stated in the utility model.

The technical result of the proposed device is to reduce trauma when washing the ear canal.

In fig. 1 shows the schematic design of the proposed device in two projections. In fig. Figure 2 shows an enlarged cross-section of fragment A. In fig. Figure 3 shows the appearance of the implemented device.

The proposed device is made of rigid material, biologically and chemically inert; has a tube 1, at one end of which there is a pavilion 2 for connecting a syringe. The other end of the tube (working end) 3 is open and has an olive-shaped thickening 4. The working end 3 is bent at an obtuse angle. A screw thread 5 is applied to the inner surface of tube 1 in the area of the working end 3.

The bent working end of the tube allows the device to be inserted into the ear canal, taking into account its anatomical bends, which allows for more efficient irrigation of the ear canal and makes the manipulation more comfortable for the patient. The presence of an olive at the working end makes it possible to reduce trauma when inserting a cannula into the ear canal, since the specified olive - i.e. thickening at the cut of the tube - eliminates the cutting effect of the edges of the tube on the tissue. A screw thread inside the working end of the tube imparts rotation to the liquid at the outlet of the cannula, which increases the speed and pressure of the liquid without increasing pressure and intensifies the process of removing the plug.

An example of the implementation of a utility model is shown in Fig. 3 device. The cannula is made of stainless surgical steel, has a length of 75 mm, and the diameter of the tube is 1.6 mm. At one end of the tube there is a pavilion for connecting a syringe with liquid. The opposite end of the tube (working) is bent at an obtuse angle, is open, and at the very end there is an olive-shaped thickening with a diameter of 2 mm. A 7 mm screw thread is made on the inner surface of the working end of the tube.

The result of using the described cannula is demonstrated by the following clinical example:

Patient A., 48 years old. I consulted an otorhinolaryngologist with complaints of hearing loss and a sensation of a foreign body in the left ear. Diagnosis: wax plug in the left ear.

At an outpatient appointment, the patient had his left ear canal washed with a warm solution of furatsilin using a 50 ml polypropylene syringe and the described cannula shown in Fig. 3. The cannula was inserted into the external auditory canal along the posterosuperior wall and liquid was supplied in separate portions, jerkily, under slight pressure, washing out the cerumen plug. After rinsing, a second otoscopy was performed: the ear canal is free, the eardrum is gray, and the identifying marks are pronounced. There is no evidence of inflammation or injury to the eardrum.

Claims (1)

A cannula for washing the ear canal, made of hard material, biologically and chemically inert, including a tube with a diameter of 1.6 mm, at one end of which there is a pavilion for connecting a syringe; the other end of the tube is bent at an obtuse angle, is open and has an olive-shaped thickening with a diameter of 2 mm.