34 results about "Ossicular prosthesis" patented technology

A passive ossicular prosthesis includes a first and second fastening element for connection to the tympanic membrane. A connecting element connects the fastening elements in a sound-conducting manner. The connecting element includes a receiving part and an insertion part. The insertion part is inserted into a receiving opening of the receiving part. The receiving part encloses an end section of the insertion part in the manner of a clamp by way of two opposing, parallel legs disposed parallel to a shank axis of the connecting element. The legs have catch devices that fix the enclosed end section discrete spatial positions relative to the shank axis.

An ossicular prosthesis delivery system having an ossicular prosthesis including an enlarged head and a shaft axially, moveably mounted to the head to adjust shaft length. An elongate main body having an operating portion, including a cylindrical through bore, connected to an adjusting portion, including a generally semi-cylindrical upwardly opening channel coaxial with the bore. An end wall at a distal end of the adjusting portion includes a through passage coaxial with the channel and an upwardly opening cavity. An elongate cylindrical plunger has a claw at one end. The plunger is received in the bore with the claw in the channel and an opposite end extending outwardly of the operating portion. The ossicular prosthesis' shaft is positioned in the channel with the head received in the cavity and the plunger is rotatable in the bore to capture the shaft and is reciprocally moveable in the bore to adjust shaft length of the ossicular prosthesis.

An ossicular prosthesis is described which includes an elongated prosthesis member having a proximal end and a distal end. A cochlea striker mass is at the distal end of the prosthesis member and includes an outer striking surface for coupling vibration of the striker mass to an outer cochlea surface of a recipient patient. A locking clamp is at the proximal end of the prosthesis member and includes a clamp strap having a fixed end and a free end, and a locking head at the fixed end of the clamp strap which has a strap opening for insertion of the free end of the clamp strap. The clamp strap passes around an ossicle of the middle ear in a closed loop and is fixedly engaged by the locking head such that acoustic vibration of the ossicle is coupled by the prosthesis member to the cochlea surface.

An ossicular prosthesis has a first fastening element for connection to the tympanic membrane or a component of the ossicular chain, a second fastening element for connection to a further component of the ossicular chain, or directly to the inner ear, an elongated connecting element that connects the two fastening elements in a sound-conducting manner and includes an adjusting device for adjusting the axial length of the prosthesis and including at least two partial strands that extend symmetrically to the longitudinal axis of the connecting element, are extendable and / or compressible in the axial direction, are permanently plastically deformable, and are folded into a plurality of loops transversely to the longitudinal axis before being deformed. As a result, a relatively simple design of the adjusting device considerably reduces the number of different prostheses that must be kept on hand, while ensuring that the prosthesis may be optimally adapted for a specific case.

Disclosed herein is a customized ossicular prosthesis suitable for treatment of conductive hearing loss due to ossicular chain defects, and a method and system for manufacturing the same. Medical imaging equipment can detect specifically designated landmarks in normal human middle ear ossicles, including significant anatomic differences in those structures. Those anatomic features are used to generate a customized ossicular prosthesis specifically configured for a particular patient's anatomy using 3D printing techniques and devices.

A passive ossicular prosthesis has a sound-conducting prosthesis body with a first coupling element for mechanical connection to the incus, malleus, or an actuator end piece of an active hearing aid at one end. The bight is made of a strip-shaped metallic material, partially open toward the outside via a gap-type opening and is intraoperatively crimped in the middle ear for permanent attachment. There is a second coupling element at the other end of the prosthesis body for connection to a further component of the ossicular chain or directly to the inner ear. The bight includes elongated perforations with longitudinal axes extending, in the implanted state, along a curved trajectory at a right angle or slant relative to an axis parallel to the longitudinal axis (a) of the enclosed object to reduce spring action and stiffness and markedly reduce the force to be applied for the crimping.

The invention relates to an ossicular prosthesis (40) which replaces or bridges at least one element of the human ossicular chain. The ossicular prosthesis (40) is made of an elastic material or from material having at least articular connection. The inventive prosthesis is characterised in that it is provided with means for adapting the frequency (tuning) for sound conduction in the middle ear, in particular in order to alter lift conditions in the ossicular chain. Sound conduction is considerably improved between the region of the middle ear and the inner ear of the human auditory channel, and enables, in particular, optimal adaptation to the individually different conditions and a tailor-made solution to problems and defects of each patient.

The invention discloses a replaceable artificial ossicle prosthesis device, comprising an elastic eardrum affinity piece, a crank, an elastic fixing pin, and an abutment, the elastic eardrum affinity piece is slidably connected with the top end of the crank, and the crank The bottom end of the eardrum is fixedly connected with the abutment through the elastic fixing pin, the elastic eardrum affinity sheet is attached to the eardrum, and the abutment is fixed in the foot plate. The present invention aims at the problem of hearing loss caused by the artificial ossicle prosthetic device after surgery, such as prolapse, breakage, displacement, etc., by pulling out the elastic fixing pin, inserting the main part, and then inserting the elastic fixing pin, greatly improving the hearing loss. Reduce the time and workload of the doctor during the operation; through the cooperation of the spherical structure at the lower end of the crank and the position of the abutment, it can be adjusted according to the height of the ossicles of different human bodies, reducing the time and work of the doctor for cutting and grinding. amount; the present invention can adjust the angle according to the difference of each individual's eardrum.