30 results about "Retinaculum" patented technology

An apparatus and method for identifying the flexor retinaculum of the carpal tunnel, injecting an effective amount of an agent into at least a portion of flexor retinaculum or tissue adjacent thereto, wherein the agent is configured to weaken the flexor retinaculum. The system may further include means for increasing the tensile stress in the flexor retinaculum post-injection using hand exercises, thereby weakening its structural integrity and decreasing the pressure within the carpal tunnel that impairs median nerve function.

The apparatus of the present invention stretches the carpal ligament and the flexor retinaculum, as well as the superficial structures and muscles of the hand, in a safe manner under precise control of the patient or a healthcare professional. A first embodiment of the inventive apparatus includes a housing for receiving the patient's hand with a bottom portion having a first pressure element positioned to contact the hypothenar region of the patient's hand and a second pressure element positioned to contact the thenar region of the patient's hand, and a top portion having a central longitudinal pressure element positioned to contact the central longitudinal dorsal region of the patient's hand. The first and second pressure elements are connected to active pressure sources (or source), such that when the hand is inserted into the housing, the first and second pressure elements are activated and exert pressure on the respective hypothenar and thenar regions of the hand while the central dorsal portion of the hand presses against the third pressure element. This forces the thenar and hypothenar regions apart thus advantageously stretching the carpal ligament, the flexor retinaculum, and superficial structures and muscles of the hand. In another embodiment of the present invention, the third pressure element is also connected to an active pressure source, such that active pressure is applied to the central dorsal region of the hand, while the first and second pressure elements apply pressure to the hypothenar and thenar regions of the hand.

A method is provided for implanting, in an eye, apparatus having an electrode array including stimulating electrodes shaped to define distal tips protruding from the array, a plurality of photosensors, and driving circuitry, configured to drive the electrodes to apply currents to the retina. The method includes removing a lens of the eye and a vitreous body of the eye, creating a corneoscleral incision and inserting the apparatus through the corneoscleral incision into a vitreous cavity of the eye. During the inserting, an orientation of the distal tips is maintained pointing towards a cornea of the eye. Subsequently to the inserting, the apparatus is rotated such that the distal tips point towards a macula of the eye. Subsequently to the rotating, the apparatus is positioned epi-retinally, such that the distal tips of the electrodes penetrate the retina. Other applications are also described.

The invention discloses a biologic sclera contraction band and a preparing method thereof. The biologic sclera contraction band is in a band as a whole; the cross section of the biologic sclera contraction band is arc-shaped; the biologic sclera contraction band is thickest in the middle and gradually becomes narrower from the middle to the two sides through arc-shaped transition; the whole length of the biologic sclera contraction band is 3-40mm; the middle thickness of the biologic sclera contraction band is 1-3mm; the thickness of the two sides of the biologic sclera contraction band is 0.5-2mm; the band width of the biologic sclera contraction band is 3-8mm. The biologic sclera contraction band can be applied to combination with a biologic posterior sclera reinforcing band, can contract sclera and limit the expansion of the sclera, is used for treating high myopia macular retinal detachment, full retinal detachment and other certain non-incremental retinal detachments and better keeps and protects retinal structures and functions. The base material of the biologic sclera contraction band is taken from the trachea, ligament, trunk vessel or cartilage of an animal, the strength is increased through genipin cross-linking solidifying treatment, the elasticity and the hardness are proper, and the biologic sclera contraction band cannot be easily absorbed, has great tissue compatibility, causes few complications and overcomes the defects of the conventional retinal detachment intra and extra surgeries.

The invention relates to a hospital bed special for postoperative care of retinal reattachment, comprising a bed board, a mattress, a bed screen and a transverse bed end guard rail, wherein the two sides of the bed board are respectively provided with a longitudinal guard rail in a dismountable way, the mattress is provided with an elliptic hole, and the elliptic hole is close to the bed screen; the bed board is provided with a ventilate hole, and the ventilate hole is opposite to the elliptic hole of the mattress; a horizontal plate which can longitudinally slide is erected between the two longitudinal guard rails on two sides of the bed board, the vertical distance between the upper surface of the horizontal plate and the upper surface of the mattress is 35-45 centimeters; the left edgeand the right edge of the horizontal plate are respectively provided with a U-shaped slot extending longitudinally, the openings of the U-shaped slots are downward, grid bars at the top of the two longitudinal guard rails penetrate into corresponding U-shaped slots; and the middle part of the horizontal plate is provided with a hollowed hole. By applying the hospital bed in the invention, a patient can be comfortable to maintain a body position that the face is downward, the patient can select one of three body positions in turn, and all the three body positions can ensure the patient to breathe fresh air smoothly.

A set formed of a scleral buckle and an encircling band is provided for use in connection with retinal detachment surgery to enable the implantation of both the scleral buckle and encircling band free of any suture. A self-assembling scleral buckle-encircling band combination is secured in place by surface scleral tunnels operative as belt loops to enable the securing of a scleral buckle and encircling band on the eyeball to exert an intended indentation effect for treatment of retinal detachment.

A surgical instrument providing a passage to upper and lower portions of the flexor retinaculum, comprises: a hollow cannular needle having an end capable of penetrating the skin; and a blunt rod which enters the cannular needle and moves under the skin in correspondence to the passage, wherein the cannular needle can move along the blunt rod moved under the skin so as to provide the passage to upper and lower portions of the flexor retinaculum.

The invention relates to a hospital bed special for postoperative care of retinal reattachment, comprising a bed board, a mattress, a bed screen and a transverse bed end guard rail, wherein the two sides of the bed board are respectively provided with a longitudinal guard rail in a dismountable way, the mattress is provided with an elliptic hole, and the elliptic hole is close to the bed screen; the bed board is provided with a ventilate hole, and the ventilate hole is opposite to the elliptic hole of the mattress; a horizontal plate which can longitudinally slide is erected between the two longitudinal guard rails on two sides of the bed board, the vertical distance between the upper surface of the horizontal plate and the upper surface of the mattress is 35-45 centimeters; the left edge and the right edge of the horizontal plate are respectively provided with a U-shaped slot extending longitudinally, the openings of the U-shaped slots are downward, grid bars at the top of the two longitudinal guard rails penetrate into corresponding U-shaped slots; and the middle part of the horizontal plate is provided with a hollowed hole. By applying the hospital bed in the invention, a patient can be comfortable to maintain a body position that the face is downward, the patient can select one of three body positions in turn, and all the three body positions can ensure the patient to breathe fresh air smoothly.

A micro-vitreoretinal (MVR) blade for incising tissue for a transvenous chorioretinotomy and similar procedures includes a shaft with a working tip having a chisel-type edge on its end or leading edge. Various embodiments of the inventive MVR blade have different chisel-type edge structures, such as a latitudinal chisel, an angled chisel, a chevron, a reverse chevron, a concave semi-lunar and a guarded or step-down working tip. The MVR blade may also include drug / chemical coatings, electrification or freezing to promote hemostasis or chorioretinal anastomosis formation.

The invention discloses a wound closure device. The wound closure device comprises a left adhesive tape and a right adhesive tape which are distributed on the two sides of a wound respectively, wherein the left adhesive tape and the right adhesive tape are fixedly provided with a left retinaculum and a right retinaculum respectively; a plurality of locking devices which are connected with the left retinaculum and the right retinaculum are distributed on the left retinaculum and the right retinaculum; each locking device comprises a rack with a first engagement tooth and a gear with a second engagement tooth; the racks are fixed on the right adhesive tape, and the first engagement teeth of the racks are distributed upwards; the gears are connected to the left adhesive tape in a rotating mode; the racks pass through gaps between the gears and the left retinaculum; the first engagement teeth on the racks are engaged with the second engagement teeth on the gears; and the gears are provided with non-return devices capable of promoting the gears to be rotated and then positioned. By the wound closure device, wounds can be locked and stretched; and the wound closure device has a simple structure.