Search Results

A partial ossicular replacement prosthesis is a device intended to be implanted for the functional reconstruction of segments of the ossicular chain and facilitates the conduction of sound wave from the tympanic membrane to the inner ear.

Ossicular replacement prostheses are indicated for the functional restoration of the ossicular chain when a conductive hearing loss is present. Indications for use include:

(a) Chronic middle ear disease,
(b) Otosclerosis,
(c) Congenital fixation of the stapes,
(d) Secondary surgical intervention to correct for a significant and persistent conductive hearing loss from prior otologic surgery, and
(e) Surgically correctible injury to the middle ear from trauma.

The Grace Medical Stapes Prostheses are manufactured from the same or similar materials as the predicate devices. Various designs of Stapes Prostheses are available to meet physician preference. Materials include Titanium, Fluoroplastic, Stainless Steel, Platinum, Tantalum, Silicone, and Nitinol. Shaft diameters range from 0.3 to 0.8 mm and functional lengths range from 3.0 to 6.5 mm. The devices are supplied sterile.

The provided documents do not contain information about specific acceptance criteria or a study designed to prove that the Grace Medical Partial Ossicular Replacement Prostheses meet such criteria.

The documents are a 510(k) summary for a medical device (Partial Ossicular Replacement Prostheses). In a 510(k) submission, the primary goal is to demonstrate substantial equivalence to a legally marketed predicate device, rather than proving the device meets specific performance criteria through a dedicated study with defined acceptance criteria and statistical analysis.

Instead, the submission provides:

• Comparison Charts (Tables in sections {1} and {2}): These tables compare the Grace Medical device with several predicate devices based on attributes like:
  • Intended Use
  • Material(s)
  • Shaft Diameter (mm)
  • Functional Length (mm)
  • Loop Dia (mm)
  • How Supplied (Sterile)

The stated rationale for substantial equivalence is that "Differences between the Grace Medical Modified Partial Ossicular Replacement Prostheses and the predicate devices should not affect the safety or effectiveness."

Therefore, I cannot provide the requested information about acceptance criteria and a study proving their fulfillment as it is not present in the provided text.

Ask a specific question about this device

The MedNet Locator, INC., Partial Ossicular Replacement Prosthesis (PORP) is to be used by ear, nose and throat physicians to restore the hearing mechanism related to loss or destruction or damage to the ear ossicles due to prolonged chronic infection.

Partial Ossicular Replacement Prosthesis (PORP)

The provided text is an FDA 510(k) clearance letter for a medical device: "Partial Ossicular Replacement Prosthesis (PORP)". This type of document declares substantial equivalence to a predicate device, allowing it to be marketed. It does not contain information about acceptance criteria or a study that proves the device meets specific performance criteria.

Therefore, I cannot provide the requested information. The 510(k) process primarily focuses on demonstrating that a new device is as safe and effective as a legally marketed predicate device, rather than requiring extensive de novo performance studies with acceptance criteria as might be seen for novel technologies or PMA applications.

Ask a specific question about this device

Ask a specific question about this device

Ask a specific question about this device