The present disclosure relates to techniques for restricting a urinary bladder and for evacuating urine from a urinary ladder. More specifically, an implantable pumping device is provided, having one or several constriction devices configured to constrict the urinary bladder in order to evacuate urine.

Provided herein is a spinal interbody device including an interbody; and a movable backout prevention mechanism disposed at least partially within the interbody, comprising a body and one or more lobes integral with the body, wherein each of the one or more lobes is configured to be moved between an unlocked position for insertion of a fixation member and a locked position for preventing backout of the fixation member.

The present disclosure relates to a stent delivery system that is specifically designed for the treatment of chronic limb-threatening ischemia (CLTI) below the knee (BTK), through ankle, and to be utilized as a primary treatment or as a bailout treatment.

An implant comprises (i) first and second anchors, (ii) a tether extending between the first anchor and the second anchor, and (iii) a shape-memory band that extends alongside the tether, between the first anchor and the second anchor. A delivery assembly is adapted to (a) contract the implant at the heart, by applying energy to the shape-memory band, such that the shape-memory band draws the first and second anchors closer together, and (b) secure the implant in its contracted state by locking a stopper to the tether. Other implementations are also described.

A shunt prosthesis comprises a synthetic tube having an inner wall defining a fixed inner diameter of the synthetic tube and a layer of hydrogel of a predetermined thickness coating the inner wall of the synthetic tube such that the layer of hydrogel has a fixed outer diameter and such that an inner diameter of the layer of hydrogel defines a diameter of a lumen extending through and defined by the shunt prosthesis. The layer of hydrogel being configured such that the predetermined thickness of the layer of hydrogel is reducable in vivo over a predetmined period of time by controlling the crosslinking density of the layer of hydrogel. A method of controlling flow through a shunt prosthesis is also provided.

The present disclosure discloses a penis enlargement implant and a preparation method, and relates to the technical field of medical instruments. The preparation method of the penis enlargement implant comprises: loading a polyvinyl alcohol solution into a mold, the mold having a negative Poisson's ratio structure; performing at least three freeze-thaw cycles on the mold and the polyvinyl alcohol solution to obtain a hydrogel sample; soaking the hydrogel sample in a lye for a preset time period, and then washing to remove impurities to obtain the penis enlargement implant. The preparation method of the present disclosure uses a biocompatible hydrogel as a matrix material, which is not susceptible to degradation or localized fibrosis after implantation, and can be used for a long time. In addition, the penis enlargement implant obtained by the preparation method has an elongation at break of 200-400%.

An implantable breast prosthesis including a flexible inside skeleton defining a first filling chamber filled with a first fluid, and a flexible outside envelope defining a second filling chamber, composed of two communicating compartments surrounding the inside skeleton and filled with a second fluid of the hyaluronic acid type. The inside skeleton includes an inside base, an inside cover integrally secured to the inside base in such a way that the inner surfaces of the inside base and of the inside cover are facing each other, a bracing structure arranged between the inner surfaces of the inside base and of the inside cover and configured to space apart the inside cover and the inside base in such a way that the outer surface of the inside cover is convex.

A system and method for the installation and operation of a cardiac assist device. Flexible guides are advanced into a prepared space using minimally invasive techniques. A heart pump construct is advanced into position in the pericardial area along the flexible guides. Once in position, the heart pump construct is activated while still engaged with the flexible guides. The flexible guides provide structural integrity to the heart pump construct needed in order for the heart pump construct to function properly. The forces supplied to the heart by the heart pump construct are affected by the presence of the flexible guides. The structure of the flexible guides, the position of the flexible guides and the structure of the heart pump construct are customized to supply the forces needed by a particular heart in order to assist the heart in pumping more efficiently.

Intraocular implants and methods of making intraocular implants are provided. The intraocular implants can improve the vision of a patient, such as by increasing the depth of focus of an eye of a patient. In particular, the intraocular implants can include a mask having an annular portion with a relatively low visible light transmission surrounding a relatively high transmission central portion such as a clear lens or aperture. This construct is adapted to provide an annular mask with a small aperture for light to pass through to the retina to increase depth of focus. The intraocular implant may have an optical power for refractive correction. The intraocular implant may be implanted in any location along the optical pathway in the eye, e.g., as an implant in the anterior or posterior chamber.

A tissue graft delivery system and associated devices are described. The tissue graft delivery devices utilized a conveyor belt moved by an actuator mechanism to shuttle a tissue graft, such as bone graft material, from a chute containing the graft into a surgical site, such as an intervertebral disc space. The interactive system and devices eliminate graft packing, inefficient tissue delivery, and other difficulties arising from friction between the bone graft material and graft contact surfaces of existing prior art systems, such as bone funnels.