198 results about "Hernia repair" patented technology

A universal, surgical prosthesis for hernia repair is provided in the form of a foldable sheet. The prosthesis includes a barrier layer formed of a material adapted to prevent biological adherence thereto, such as polytetrafluoroethylene, and a second surface layer formed of a material adapted to promote biological tissue adherence thereto, such as polypropylene. The second surface may be formed of a series of spaced projections. The prosthesis is adapted to be manipulated into an operative position to exhibit an appropriate exterior when in the operative position. In this manner, the universal, surgical prosthesis can be utilized for a wide range of surgical procedures.

Devices for attaching a first mass and a second mass and methods of making and using the same are disclosed. The devices can be made from an resilient, elastic or deformable materials. The devices can be used to attach a heart valve ring to a biological annulus. The devices can also be used for wound closure or a variety of other procedures such as anchoring a prosthesis to surrounding tissue or another prosthesis, tissue repair, such as in the closure of congenital defects such as septal heart defects, tissue or vessel anastomosis, fixation of tissue with or without a reinforcing mesh for hernia repair, orthopedic anchoring such as in bone fusing or tendon or muscle repair, ophthalmic indications, laparoscopic or endoscopic tissue repair or placement of prostheses, or use by robotic devices for procedures such as those above performed remotely.

A stromal cell-based three-dimensional cell culture system is prepared which can be used to culture a variety of different cells and tissues in vitro for prolonged periods of time. The stromal cells and connective tissue proteins naturally secreted by the stromal cells attach to and substantially envelope a framework composed of a biocompatible non-living material formed into a three-dimensional structure having interstitial spaces bridged by the stromal cells. The living stromal tissue so formed provides the support, growth factors, and regulatory factors necessary to sustain long-term active proliferation of cells in culture and / or cultures implanted in vivo. When grown in this three-dimensional system, the proliferating cells mature and segregate properly to form components of adult tissues analogous to counterparts in vivo, which can be utilized in the body as a corrective tissue. For example, and not by way of limitation, the three-dimensional cultures can be used to form tubular tissue structures, like those of the gastrointestinal and genitourinary tracts, as well as blood vessels; tissues for hernia repair and / or tendons and ligaments; etc.

A tissue approximation device and processes for using the device are provided. The device is an implantable, biodegradable construct (except for hernia repairs) that has attachment points emanating from a supportive backing. The device improves the mechanical phase of wound healing and evenly distributes tension over the contact area between the device and tissue. Processes for using the device include wound closure, vascular anastomoses, soft tissue attachment and soft tissue to bone attachment.

A stromal cell-based three-dimensional cell culture system is provided which can be used to culture a variety of different cells and tissues in vitro for prolonged periods of time. The stromal cells along with connective tissue proteins naturally secreted by the stromal cells attach to and substantially envelope a framework composed of a biocompatible non-living material formed into a three-dimensional structure having interstitial spaces bridged by the stromal cells. Living stromal tissue so formed provides support, growth factors, and regulatory factors necessary to sustain long-term active proliferation of cells in culture and / or cultures implanted in vivo. When grown in this three-dimensional system, the proliferating cells mature and segregate properly to form components of adult tissues analogous to counterparts in vivo, which can be utilized in the body as a corrective tissue. The three-dimensional cultures can be used to form tubular tissue structures, like those of the gastrointestinal and genitourinary tracts, as well as blood vessels; tissues for hernia repair and / or tendons and ligaments. A three-dimensional filamentous tissue having tendon or ligament function is prepared containing fibroblasts and collagen naturally secreted by the fibroblasts attached to and substantially enveloping a three-dimensional filamentous framework.

A hernia repair prosthetic element includes: a central portion which covers a hernia opening within a patient; plural support portions integrally connected about a periphery of the central portion for securing the central portion in covering relation to the hernia opening; the prosthetic element, including the central and support portions, being a substantially planar member formed of flexible mesh material; the support portions being foldable relative to the central portion so that the prosthetic element can be selectively manipulated between folded and unfolded shapes; the support portions being adapted to securely engage various components of the patient's body surrounding the hernia opening; and openings are formed through the central portion for passage of fluid therethrough. The prosthetic element has only two basic shapes, one for use in relation to all groin hernias and one for use in relation to all abdominal hernias. The flexible mesh material may be of propylene or other suitable materials, the central portion has an enhanced strength, such as being formed of two layers of the mesh material, and the central portion may be stretchable to absorb greater forces imposed thereon.

Apparatus and methods enable insertion and tensioned deployment of a secondary material prosthetic device into a body cavity or other tissue of a patient, such as for example hernia repair mesh into the abdominopelvic cavity of a patient through the hernia site. The present invention establishes fixation sites for the prosthetic device and tensions it against the body tissue. It may also be used implant fixation devices within the body tissue so that the prosthetic device is tensioned into firm abutting contact with the body tissue. Instrument deployment and fixation struts may be advanced in retrograde fashion in order to reduce needed deployment volume within the patient's body cavity. The prosthetic device advantageously may be flexibly coupled to the instrument via fixation devices such as sutures, so as to increase orientation flexibility.

A method of treating hernia by means of implanting at least one collapsible mesh comprising plane body at least partially enveloped by one or more elastic collar, said rolled in an elongate open-bored applicator comprising anterior portion terminated outside the body and posterior portion located inside the body, comprising: inserting the posterior end of the applicator throughout the hernia into the wall of the abdominal cavity; releasing said mesh into said cavity while helically deploying the same such that said mesh is laying in parallel to said wall; and, ejecting said applicator.

An article of manufacture suitable for positioning a sheet of mesh material over tissue is described. In one embodiment, the article comprises a surgical tack having a hook-type material such as Velcro® material carried by the tack, e.g., secured to the top of the head thereof. A plurality of such tacks are positioned around the site of a hernia or the like and the mesh is positioned over the site and the tacks. The mesh is made of a loop-type Velcro® material or the like which allows the mesh to be releasably engaged and disengaged from the hook-type material carried by the tacks so that the mesh can be appropriately positioned over the tissue.

Surgical fasteners, including tacks are disclosed for fastening a surgical mesh to underlying tissue during surgical procedures to repair body tissue, such as in hernia repair. Such tacks can include a head, a elongated body portion having a distal end and a proximal end, and an anchoring element on an outer surface of the body portion for inhibiting the removal of the tack from the mesh and body tissue.

An elongate open-bored applicator (EOBP) adapted to deploy a mesh comprising (a) at least one inflatable contour-balloon; (b) at least one inflatable dissection balloon. The inflatable contour-balloon and the inflatable dissection balloon are adjustable and located at the distal portion; and, (c) at least one actuating means located at the proximal portion. The actuating means is in communication with the inflatable contour-balloon and the inflatable dissection balloon. The actuating means is adapted to provide the inflatable contour-balloon and the inflatable dissection balloon with independent activation and / or de-activation.

A medical assembly comprises a soft tissue implant (16) for treating a first portion of body tissue during hernia repair, and a device (20). The device (20) comprises a support element (31) to support the soft tissue implant (16) during deployment. The device (20) comprises an elongate drawstring to releasably couple the soft tissue implant (16) to the support element (31). The support element (31) and the soft tissue implant (16) are movable between a collapsed delivery configuration, and an expanded deployment configuration. During deployment a second end (33) of the support element (31) engages with a second portion of body tissue to maintain the second portion of body tissue spaced-apart from the soft tissue implant (16). The support element (31) comprises an access opening (34) through which one or more instruments may be extended to access the soft tissue implant (16). The soft tissue implant (16) is attached to the first portion of body tissue using a suture. After deployment the support element (31) may be released from the soft tissue implant (16) and removed.

A novel single plane tissue repair patch is disclosed. The patch has a base member with an opening therethrough, and a closure member associated with the opening. Mounted to the periphery of the bottom side of the base member is a locating structure. The mesh may be used in open surgical procedures for hernia repairs and other repairs of body wall defects.

A novel single plane tissue repair patch is disclosed. The patch has a base member with an opening therethrough, and a closure member associated with the opening. The mesh may be used in open surgical procedures for hernia repairs and other repairs of body wall defects.

The invention relates to an anti-adhesion hernia repair patch which comprises a mesh fabric substrate and an electrostatic spinning anti-adhesion layer connected with the mesh fabric substrate. The pore diameter of the electrostatic spinning anti-adhesion layer is 10nm to 2,000nm, while the preferred pore diameter is 50nm to 1,500nm and the more preferred is 100nm to 800nm. After being transplanted into human body, the anti-adhesion hernia repair patch can not only repair hernia, but also prevent post-operation adhesion and can reduce effusion, thus reducing infection.

Surgical fasteners, including tacks are disclosed for fastening a surgical mesh to underlying tissue during surgical procedures to repair body tissue, such as in hernia repair. Such tacks can include a head, a elongated body portion having a distal end and a proximal end, and an anchoring element on an outer surface of the body portion for inhibiting the removal of the tack from the mesh and body tissue.

The invention describes new synthetic medical adhesives and films which exploit the key components of natural marine mussel adhesive proteins.

A braided, rather than woven, three-dimensional matrix has been developed to provide mechanical support in breast reconstruction or a mastopexy procedure. The braided three-dimensional matrix may be used to assist in hernia repair procedures. The matrix is a supple, strong, and flexible material, that can increase 50% to 100% in size when stretched along the vertical plane, but only extends by about 10% to 20% in length when stretched along the horizontal plane. Although the matrix is degradable, it provides sufficient mechanical and structural support for six to twelve months following implantation to allow for repair or growth of the breast tissue or the abdominal wall. The matrix is formed of three-dimensional braided multifilament polymeric fibers plied to create yarn bundles, and wherein the matrix comprises an inter-connected, open pore structure that enables even and random distribution and in-growth of cells.

An apparatus for use in insufflation of a body cavity 5, such as through a trocar 6 is described. One such application is laparoscopic surgery. The device is also suitable for use in any situation involving insufflation of a body cavity such as in arthroscopies, pleural cavity insufflation (for example during thoracoscopy), retroperitoneal insufflations (for example retroperitoneoscopy), during hernia repair, during mediastinoscopy and any other such procedure involving insufflation. The apparatus comprises a reservoir 1 for storing an liquid solution, an aerosol generator 2 for aerosolising the solution, and a controller 3 for controlling operation of the aerosol generator 2. Aerosolised liquid solution (which main contain a pharmaceutical) is entrained with insufflation gas using a T-piece connector or housing 30 having an insufflation gas inlet 31 and an outlet 32. The connector 30 also comprises an aerosol supply conduit 34 for delivering the aerosol from the aerosol generator 2 into a mixing chamber 33 in which the aerosol is entrained with insufflation gas. The aerosol insufflation gas mixture passes out of the connector 30 through the outlet 32 and is delivered along the insufflation gas conduit 15 to the trocar 6 for delivery into a body cavity 5. The connector 30 causes a substantial sudden reduction in the velocity of the insufflation gas from the insufflation gas inlet as it enters the mixing chamber 33. The connector 30 also causes a gradual increase in the velocity of the insufflation gas with entrained aerosol between the mixing chamber 33 and the outlet 32.

A bilayer patch device for hernia repair includes a first layer and a second layer. The first layer is cut to form locating flakes by cutting lines. The edges of the first layer and the second layer are connected to form a pocket. The second layer further comprises an auxiliary layer. The auxiliary layer further comprises a fin thereof. The patch is able to be flat attached to a cavity of the peritoneum for repairing a hernia.

A method of making a composite prosthetic device, such as a hernia repair device, includes providing a support layer, juxtaposing a layer of an absorbable material with the support layer, and disposing an absorbable adhesive between the support layer and the layer of an absorbable material. The method includes heating the layers for melting the absorbable adhesive so as to bond the support layer with the layer of the absorbable material. Before the heating step, the moisture content of at least one of the layers is increased for improving thermal conductivity between the layers so as to enhance the strength of the bonds formed between the layers. The moisture content may be increased by exposing at least one of the layers to an environment having elevated relative humidity. In one embodiment, the support layer is polypropylene mesh, the layer of the absorbable material is oxidized regenerated cellulose, and the absorbable adhesive is polydioxanone.

The present invention generally relates to the field of prostheses for surgical applications, to methods of their manufacturing and to methods of treating a patient by implanting them into a patient. More particularly, the present invention relates to prostheses having a multi-layered sheet structure and their use in hernia repair, the repair of anatomical defects of the abdominal wall, diaphragm, and chest wall, correction of defects in the genitourinary system, and repair of traumatically damaged organs such as the spleen, liver or kidney.

A hinged retractor for use in hernia repair, having: a handle portion to operate the retractor; a ratcheting device to releasably maintain the retractor in a plurality of open positions; a plurality of blades; and two arms formed such that they pivot around a hinge when the handle portion is operated; wherein each of the arms is formed such that at least one of the plurality of blades may be removably attached.