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The straight sinus is situated within the dura mater, where the falx cerebri meets the midline of tentorium cerebelli.^[1] It forms from the confluence of the inferior sagittal sinus and the great cerebral vein.^[1][2] It may also drain blood from the superior cerebellar veins and veins from the falx cerebri.^[1] In cross-section, it is triangular, contains a few transverse bands across its interior, and increases in size as it proceeds backward.^{[citation needed]} It is usually around 5 cm long.^[2]

Stapes Prosthesis Crimping Forcep

Different types of forceps are used to crimp stapes prostheses during stapes surgery. The choice of forceps can affect the outcome of the surgery. Here are some details:

• MacGee Forceps: These are commonly used to fix crimp prostheses to the long process of the incus (LPI). They are used to bend the loop of the crimp prosthesis, which is designed to imitate the physiological incudostapedial joint (ISJ).

• Alligator Forceps: Similar to MacGee forceps, alligator forceps are used to crimp the prosthesis onto the LPI. They provide a firm attachment of the prosthesis to the incus.

• Crimp Forceps: Specifically designed for crimping, these forceps are used to bend the static loop of the crimp prosthesis around the LPI. The goal is to create a stable but mobile connection that mimics the natural joint.

• 90° Hook: This tool is used to push clips over the LPI when using a CliP® Piston prosthesis. Unlike crimp prostheses, the CliP® Piston is pushed onto the LPI without the need for bending a loop.

The choice of forceps and the technique used can influence the surgical time and the hearing outcome. Proper crimping is crucial for achieving optimal sound transmission and hearing improvement in patients undergoing stapes surgery for otosclerosis.

Mouth guards have many purposes, and can help treat conditions from teeth grinding to sleep apnea. They also protect your mouth from sports-related injury. Mouth guards may be store-bought or custom-made by a dentist.

Ear curettes

Ear curettes are medical tools used for the safe and gentle removal of cerumen (earwax) from the ear canal. Here are some types of ear curettes available:

• Bionix Safe Ear Curettes: These are flexible, single-use curettes designed to reduce injury to the ear canal compared to rigid stainless steel curettes. They come in various styles to match different types of wax and personal preference, and are available in both adult and youth sizes. They are designed for healthcare providers and can be purchased in packs of 50 or 75.

• Bionix Lighted Ear Curette Variety Pack: This pack includes a variety of lighted curettes that provide illumination and magnification, making cerumen removal more efficient and safer. The pack contains 50 curettes and includes a light source and magnification lens. It is ideal for healthcare providers and is available in different styles to suit various needs.

• Lightbeam Ear Curettes: These curettes feature a rechargeable light source and come with different refill styles. They are designed to provide light and magnification during cerumen removal, making the process easier and more effective. The system includes eight different curette tips and a tweezer attachment for removing foreign objects.

• Warner Tech-care Ear Curettes: Available from Warner Tech-care, these curettes are designed to bend upon encountering an obstacle without breaking. They are reliable and trusted among hearing health professionals. They come in various styles and are available in boxes of 50.

These curettes are commonly used by healthcare providers to manage cerumen impactions and maintain healthy ear hygiene. 
Ear curettes

Ear curettes are medical tools used for the safe and gentle removal of cerumen (earwax) from the ear canal. Here are some types of ear curettes available:

• Bionix Safe Ear Curettes: These are flexible, single-use curettes designed to reduce injury to the ear canal compared to rigid stainless steel curettes. They come in various styles to match different types of wax and personal preference, and are available in both adult and youth sizes. They are designed for healthcare providers and can be purchased in packs of 50 or 75.

• Bionix Lighted Ear Curette Variety Pack: This pack includes a variety of lighted curettes that provide illumination and magnification, making cerumen removal more efficient and safer. The pack contains 50 curettes and includes a light source and magnification lens. It is ideal for healthcare providers and is available in different styles to suit various needs.

• Lightbeam Ear Curettes: These curettes feature a rechargeable light source and come with different refill styles. They are designed to provide light and magnification during cerumen removal, making the process easier and more effective. The system includes eight different curette tips and a tweezer attachment for removing foreign objects.

• Warner Tech-care Ear Curettes: Available from Warner Tech-care, these curettes are designed to bend upon encountering an obstacle without breaking. They are reliable and trusted among hearing health professionals. They come in various styles and are available in boxes of 50.

 

These curettes are commonly used by healthcare providers to manage cerumen impactions and maintain healthy ear hygiene. 

Laryngeal Umbrella Keel

The Laryngeal Umbrella Keel is a medical device used in the treatment of various laryngeal conditions. It is designed to prevent stenosis following a hemilaryngectomy and to aid in the formation of a sharp anterior commissure. Here are some key points about the Laryngeal Umbrella Keel:

• Purpose: The keel is used following repair of stenosis or removal of the Montgomery® Laryngeal Stent to help form a sharp anterior commissure and prevent stenosis.
• Material: It is typically made of silicone rubber, which is inert and ensures re-epithelialization of incised tissue.
• Design: The keel consists of a flexible extralaryngeal portion and a flexible keel portion that extends through the anterior commissure.
• Function: The extralaryngeal portion covers the thyrotomy repair and is sutured to the thyroid laminae, while the keel portion helps maintain the sharpness of the anterior commissure.
• Safety: The device is MRI safe and does not contain natural rubber latex.
• Usage: It is intended for single-use and requires a prescription.
• Manufacturer: The Laryngeal Umbrella Keel is manufactured by E. Benson Hood Laboratories.
• Regulation: The device has an FDA premarket submission number of K841348 and is classified under the FDA product code FWN, which stands for Prosthesis, Larynx.
• Availability: It is commercially available and distributed by E. Benson Hood Laboratories.
• Clinical Use: The keel is beneficial in preventing the recurrence of anterior glottic stenosis after surgical correction, ensuring a more complete closure of the anterior commissure to minimize laryngeal secretions into the extralaryngeal spaces.