38 results about "Tissue expander" patented technology

A surgically implantable device is a single unit comprised of a hydraulically activated extendable cavernosal component and a manually controlled fluid transfer system composed of a pump. Flow from the pump is directed by a one way valve interposed between a bypass from an included elastic reservoir, the pump and a second one way valve interposed between the pump and the cavernosal unit. A manually controlled release valve, interposed between the outlet of the cavernosal unit and the reservoir, permits de-activation of the cavernosal unit and returns fluid to the reservoir. These components are housed by a molded tailpiece which stabilizes the device against the symphysis pubis, positions the cavernosal implant properly within the shaft of the penis and presents the controls for easy access. An access port permits adjustment of the fluid volume. The unit has utility as a tissue expander and penile re-construction in event of congenital or traumatic deformity.

A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and / or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion. An interspinous process implant with a selectably expandable spacer can be placed between adjacent spinous processes. a device implanted between the spinous processes of adjacent vertebrae of the spine can be used for relieving pain associated with the vertebrae and surrounding tissues and structures by maintaining and / or adding distraction between adjacent vertebrae. A tissue expander can be adapted to move from a first insertion position, for ease of implantation between spinous processes, to a second retention position that prevents displacement of the implant. An embodiment of a system can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.

An inflatable tissue expander or more permanent prosthesis, suitable for implantation in a breast, is provided. The tissue expander includes a puncturable, self-sealing anterior portion forming a fillable cavity, and posterior portion that is puncture resistant. The anterior portion includes a silicone-based elastomer material having a mesh embedded therein. The posterior portion includes a first composite guard and a second composite guard, each composite guard including an arrangement of puncture resistant members and a flexible substrate having a first side on which the puncture resistant members are disposed in a spaced apart fashion.

An inflatable tissue expander, suitable for implantation in a breast, is provided. The tissue expander includes a puncturable, self-sealing anterior portion forming a fillable cavity, and posterior portion that is puncture resistant. The anterior portion includes a silicone-based elastomer material having a mesh embedded therein. The posterior portion includes a first composite guard and a second composite guard, each composite guard including an arrangement of puncture resistant members and a flexible substrate having a first side on which the puncture resistant members are disposed in a spaced apart fashion.

An implantable tissue expander for supporting a body tissue including a support member positioned with respect to the body tissue and adapted to expand to a support configuration, in the support configuration, the support member shaping the body tissue.

An inflatable tissue expander or more permanent prosthesis, suitable for implantation in a breast, is provided. The tissue expander includes a puncturable, self-sealing anterior portion forming a fillable cavity, and posterior portion that is puncture resistant. The anterior portion includes a silicone-based elastomer material having a mesh embedded therein. The posterior portion includes a first composite guard and a second composite guard, each composite guard including an arrangement of puncture resistant members and a flexible substrate having a first side on which the puncture resistant members are disposed in a spaced apart fashion.

An implant system for implantation between adjacent spinous processes for the relief of pain associated with the spine. The implant has a series of spacers which may be inserted over a shaft located between adjacent spinous processes thus allowing the implant to be assembled in situ. The spacers may rotate on the shaft relative to the wings. To minimize trauma to the patient, each spacer has a tapered tissue expander to distract the opening between the spinous processes during assembly. The shaft is connected to a wing, and a second wing or deployable wing may be inserted over the shaft and locked into place.

The invention provides systems and methods for tissue expansion. A tissue expander may have an implant portion which may be used to expand the tissue. A delivery / drainage system may be also be provided, which may be in fluid communication with a pocket surrounding the tissue expander. Various port configurations may be provided that may provide access to the implant portion and / or the delivery / drainage system. The tissue expander may advantageously help prevent or treat infection, or check the state of the pocket surrounding the tissue expander.

Soft tissue repair grafts are provided for supporting, covering, and / or retaining an implant positioned in the body of a subject. The grafts are particularly suitable for use for pre-pectoral breast reconstruction with a breast implant or tissue expander. The grafts include positional notches for more accurate positioning in a subject. The grafts also include at least one cuff element which is folded to form a reinforced folded edge for suturing the graft more securely to adjacent tissues than previously known grafts. The grafts also include a plurality of arcuate slots which form a plurality of circular patterns arranged concentrically about a focal point, thereby enabling the grafts to expand without tearing and to conform more closely to the implant and / or adjacent body tissues such as the breast pocket, than previously known grafts. Acellular dermal matrices are particularly suitable for making the soft tissue repair grafts.

Disclosed is a self-sealing patch for use with a tissue expander implant. The self-sealing patch serves as protection for the tissue expander against a hypodermic needle inadvertently missing a fluid injection port thereof by sealing a puncture through the patch. The patch includes a first sheet having a first sheet perimeter, a second sheet having a second sheet perimeter attached to the first sheet perimeter to form a pocket between the first sheet and the second sheet. Material is disposed within the pocket, where the material is hydrophobic material having a viscosity high enough that the material is prevented from flowing outside the pocket when either the first or second sheet is punctured with a hypodermic needle but low enough that the material flows to close a track made by a hypodermic needle puncturing the first or second sheet.

An inflatable tissue expander or more permanent prosthesis, suitable for implantation in a breast, is provided. The tissue expander includes a puncturable, self-sealing anterior portion forming a fillable cavity, and posterior portion that is puncture resistant. The anterior portion includes a silicone-based elastomer material having a mesh embedded therein. The posterior portion includes a first composite guard and a second composite guard, each composite guard including an arrangement of puncture resistant members and a flexible substrate having a first side on which the puncture resistant members are disposed in a spaced apart fashion.

An expandable mammary implant including a shell having an anterior face and a posterior face. The anterior has an upper pole portion and a lower pole portion meeting at an apex, and an injection zone for receiving fluid therethrough to inflate the implant. A reinforcement material is coupled to the shell in a reinforcement zone. The reinforcement material is coupled to the shell so as to at least coincide with the upper pole portion and a peripheral rim portion that extends from the posterior face upwardly into said anterior face by a predetermined distance.

The invention discloses a prosthesis for repairing a maxillary bone defect and a preparation method thereof, a silicone rubber outer layer adapted to the maxillary bone defect area, and a columnar skin soft tissue expansion is arranged inside the silicone rubber outer layer The inner layer of the cylindrical soft tissue expander is connected with an inflation device extending outside the outer layer of silicone rubber, and the outer layer of silicone rubber is connected to the inner layer of the cylindrical soft tissue expander. Or the inflatable device is provided with a corresponding magnetic retainer. The invention is a prosthetic body for repairing maxillary defects with better repair and retention and convenient removal and wear, and establishes a preparation method for the prosthetic body.

The present invention provides a tissue expander (10) comprising a self-inflating core (12or 2e) having a non-inflated state and an inflated state and a coating (14) surrounding said core (12or 12e), in which said core (12or 12e) comprises a compacted self-inflating material and said coating comprises a fluid impermeable material having a plurality of apertures therethrough for allowing the passage of fluid to the core (12or12e) and in which the coating (14) is separable or separated from the core (12or 12e) such as to allow the coating to provide a support function during use. The invention also provides a method of manufacturing the product.