An ear tube is inserted through your child’s nose to help drain fluid from the middle ear. It may be needed for a number of reasons such as allergies, colds or enlarged adenoids.

Before insertion, ensure your patient is comfortable. A cup of water with a straw for your patient to sip from can be helpful during this procedure.



In the neonatal intensive care unit, neonates depend on nasogastric tubes for nutrition, medication, gastric decompression or gastric lavage. Nasogastric tube placement is crucial for the success of these treatments and should be performed correctly to avoid complications in premature infants, including reflux, aspiration or vasovagal responses of apnea and bradycardia (Backstrand et al., 2007).

Despite national and local protocols for nasogastric tube placement, nurses in two divisions of neonatology in the Netherlands used a large variety of methods to predict nasogastric tube insertion lengths. Even when the same method was used, large interindividual variation in nasogastric tube inserted lengths was found.

To address this problem, a prospective study was carried out to investigate the inter- and intraindividual variation of predicted nasogastric tube Insertion length in neonates. The study was conducted using a neonatal mannequin model, to evaluate the insertion of nasogastric tubes from two tertiary care centers in the Netherlands.

The results showed that interindividual variation was highest in the NEMU method with a range of 24 cm to 36 cm. The NEX method also had a wide range, with an interindividual variation of 12 cm.

The proposed equations based on height dependably predict the optimal endotracheal tube insertion length. However, they may not be applicable in non-Latin American populations. This may be because the formulas based on height do not include mouth-carina distance which is a critical factor in the prediction of insertion length. Therefore, these formulas should be validated with other studies involving non-Latin American populations.


An INSERTION TUBE is a medical device used for endoscopy. It has several components, including a connector and control section. The insertion tube is designed to be flexible and allow for easy maneuvering during the procedure. It should also be watertight so that the insertion tube does not become exposed to the patient’s secretions or other fluids.

The diameter of an INSERTION TUBE varies depending on the type of animal it will be used on. For example, a smaller INSERTION TUBE would be suitable for a ferret’s gastrointestinal tract, while a larger INSERTION TUBE might be more appropriate for a pig or cow’s intestine.

In accordance with one embodiment, an INSERTION TUBE includes a spiral tube made of a hard material, such as stainless steel. It is then covered by a net-like braid that allows INSERTION TUBE for a smooth transition while the endoscope is inserted into the patient’s body.

Another embodiment of an INSERTION TUBE features a first tubular member made of a high-polymer material that is pre-expanded and presented to the spiral tube. A hollow second tubular member made of a clear medical grade material is then placed over the outer peripheral surface of the first tubular member. A temperature controller is then used to apply sufficient heat to shrink the second tubular member onto the outer peripheral surface of the first tubular members.

This process provides a long-lasting, durable INSERTION TUBE that can undergo relatively little delamination and/or wrinkling. Its crush resistance also helps reduce the likelihood of damage to the parts contained within it during use.

A third embodiment of an INSERTION TUBE includes bending portions and end collars. Each end collar is shaped to accommodate the ends of the bending portions. The end collars are then bonded together with the underlying helically wound insertion tube. A helically wound, braid-like bending portion 110 is then bonded to the distal end of the insertion tube.

An INSERTION TUBE may also include up/down deflection wheels that allow one person to operate the instrument. The up/down deflection wheels can be located at the proximal or distal end of the INSERTION TUBE and are designed so that the tip of the INSERTION TUBE does not have to bend down when the INSERTION TUBE is inserted into the patient’s body. These deflection wheels allow for easier manipulation and help prevent injury to the patient.


The material of an INSERTION TUBE has to exhibit excellent flexibility, chemical resistance, heat resistance and weather resistance. In addition, the material must also have sufficient strength and torquing ability to be used in a high-performance medical instrument. These characteristics are critical for ensuring that the endoscope can be safely and accurately inserted into the body cavity of a living human being.

The ideal insertion tube should be flexible enough INSERTION TUBE to allow the endoscope to maneuver within the intestines without causing bowel obstructions, yet strong enough to withstand the torque applied during insertion. Achieving this balance is a challenge. In addition, the handling characteristics of a gastroscope insertion tube are critical for ease of insertion and accurate rotational transmitting.

To obtain a suitable insertion tube, a range of different materials and formulations must be tested. A variety of factors, such as the type of elastomer used, its weight average molecular weight and viscosity in a molten state, are important.

For example, the weight average molecular weight of a polyurethane elastomer used in the insertion tube can be adjusted so that it has good flexibility, chemical resistance and heat resistance. This is especially important for flexible insertion tubes because they are frequently subjected to harsh environments, such as those found in medical equipment and machinery.

Typically, the outer surface of an insertion tube is covered by a wire mesh made of stainless steel wire. A plastic polymer layer is then extruded over this mesh to form a smooth outer surface.

In the present invention, a flexible elongated structural body 2 is formed with an outer cover 3 which covers the outer periphery of the structural body 2. The outer cover material (a mixture of polyurethane elastomer and polyester elastomer) is prepared by mixing the components. The mixed materials are then heated to a predetermined temperature so that they are melted or softened. The mixed materials are then extruded onto the structural body 2 so as to form an elongated tubular body.

The flexible tube can be produced in the manner described above by using an extruder 10. This extruder is provided with a mixing section 20 and a head section 30. The head section 30 is fixed to the mixing section 20 by means of a support body 40. In this case, the extruder is held at a temperature of 180deg C.


An INSERTION TUBE is used in medical procedures to drain air or fluid from a cavity, duct, or vessel. It is especially useful for treating conditions such as gastro-esophageal reflux disease (GERD), gastric cancer, and inflammatory bowel disease. It also has several other applications, such as adenoma detection and pain management.

An insertion tube is a hollow flexible tubing that can be inserted into a body cavity, duct, or vessel for the drainage of air, fluids, and other materials. It can also be inserted into a blood vessel for diagnostic purposes.

In one embodiment, the insertion tube includes a bendable portion that is actively bent by wires. The bendable portion has a number of wires that are attached to it at various positions along its length. Each wire can be pulled in a different position to allow the bending section to bend in that direction. The bending section can also be rotated in any direction by pulling on the wires at different locations.

The bending section of the insertion tube is controlled by four angulation wires that are attached to it in four positions along its length. Pulling on the wire at 12 o’clock will cause it to curl up; pulling on the wire at three o’clock will deflect the tip down or to the left; and the other two wires can pull down or to the right, respectively.

These wires are connected to a bending section, which is a spiral assembly that can be bent in any direction. The bending section can be controlled by four angulation wires that run along the tube and are attached to its tip at various positions.

When the wires are pulled at 12 o’clock, the bending section will curl up, and when the wire is pulled at 3 o’clock, the bending section can deflect down or to the left. The bending section of the insertion tube can be controlled by a manual knob or an electric switch.

In some instances, the insertion tube includes a protective segment that extends from an inner wall of the working channel to enhance torque transfer and reinforce the conduit’s strength. This is particularly important when it is being used with sharp instruments, such as a laser or other surgical device. The distal end of the insertion tube may also be toughened to resist repeated manipulation and bending, even when multiple medical instruments are in contact with it.

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