10 results about "Surgical patch" patented technology

A device for the introduction and delivery of a self-adhesive surgical patch during minimally invasive surgery is disclosed. The device comprises a base that can be compressed to fit within a tubular member with an inner diameter of 5 mm. In a preferred embodiment of the invention, the base comprises a frame made of a compliant material. The patch is attached to the frame while the frame is in a planar, open configuration. Pressure is then applied to opposite sides of the frame to compress the frame to a straight, closed configuration small enough to penetrate a tubular member with an inner diameter of 5 mm. After penetrating the tubular member, the frame reopens to its open configuration, allowing the patch to be delivered and applied to the target tissue. A kit for providing the device is also disclosed.

The device can be used in a method to protect tissue in the gastrointestinal tract of a patient during radiation therapy, the method comprising positioning a biodegradable device to cover a perforation at a perforation site on a tissue of a patient prior to applying radiation therapy, closing the perforation through surgery, and securing the biodegradable device to cover the perforation site, so that the biodegradable device protects the tissue adjacent to the perforation site during radiation therapy. Wherein the biodegradable device is a biodegradable tubular straw or surgical patch. The surgical patch is a medical device made of tissue engineered materials designed to cover, repair, or augment damaged or weakened tissue or organs during surgery.

The present invention relates to a surgical patch / bandage (1) which comprises a cellulose layer (2), a polyvinyl chloride (PVC) layer (3), a polyethylene oxide (PEO) layer (4), where the cellulose layer (2) is an outer layer of the surgical patch / bandage (1). The surgical patch / bandage is permeable to ultrasound.

The invention relates to the technical field of biological materials, in particular to a suture-tear-resistant hydrogel patch, a preparation method and application of the suture-tear-resistant hydrogel patch, the hydrogel operation patch adopts double-crosslinking polyvinyl alcohol (PVA) hydrogel, PVA molecular chain conformation is optimized in a solution casting and annealing mode, and then a permanent reversible crosslinking domain (nanocrystal domain) is introduced. And then, tannic acid is introduced as a dynamic cross-linking agent to form an instantaneous reversible cross-linking domain, so that the energy density of the defect tip is improved, and the mechanical strength of the patch is enhanced. In the suturing process, the patch can effectively resist tearing caused by sutures, and deformation under external mechanical loads is avoided. The hydrogel operation patch provided by the invention can reduce tissue adhesion and improve long-term stability, and is suitable for biomedical application such as abdominal wall repair and rotator cuff tear repair.

A device for introducing and delivering a self-adhesive surgical patch during minimally invasive surgery is disclosed. The device includes a base that can be compressed to fit inside a tubular member having an inner diameter of 5 mm. In a preferred embodiment of the invention, the base comprises a frame made of a compliant material. The patch is attached to the frame when the frame is in a planar open configuration. Pressure is then applied to opposite sides of the frame compressing the frame into a linear closed configuration sufficiently small to pass through a tubular member having an inner diameter of 5 mm. After passing through the tubular member, the frame is reopened to its open configuration, enabling delivery and attachment of the patch to the target tissue. A kit for providing the device is also disclosed.

This invention relates to the field of medical devices, specifically to a patch application, its preparation method, and its application. The patch comprises an immediate-release layer, a cross-linking layer, and a sustained-release layer; the cross-linking layer is placed between the immediate-release and sustained-release layers, with the immediate-release layer in contact with the skin; the immediate-release layer comprises a first microsphere, which has a polyvinyl alcohol coating and an ibuprofen core; the cross-linking layer is a calcium ion cross-linked membrane obtained by cross-linking sodium alginate and calcium chloride; the sustained-release layer comprises a second microsphere, which has a polylactic acid-glycolic acid copolymer coating and a diclofenac sodium core. The patch application provided by this invention can rapidly reduce inflammation and pain through the anti-inflammatory and analgesic microspheres and maintain the surgical patch for a certain period of time, while also providing local physical cooling. Compared with traditional patches, it alleviates postoperative pain to a certain extent and accelerates wound healing.

The utility model relates to the technical field of medical instruments, and discloses an endoscopic surgery gasket which comprises a conveying system and a gasket system, the gasket system is connected with one end of the conveying system, and the conveying system comprises a pusher, a handle, a conveying pipe and a connecting ring; the gasket system comprises a gasket, a fixator long bent arm, a fixator short arm, a gasket limiting pipe and a gasket limiting ring. According to the utility model, the gasket system is conveyed into the body through an endoscopic biopsy duct through the conveying and mounting structure and is cushioned between a suture and an organ in the body, so that the cutting effect of the suture on the organ in the body is reduced, ulcer caused by suture cutting is prevented, and the short-arm comb and the long bent-arm comb are mutually meshed in a tooth-shaped manner, so that the surgical suture is prevented from being disengaged; and the pad is coated with the slow-release hemostatic coating, the slow-release antibiotic coating and the like, so that hemostatic and anti-infection effects on wounds and fistulization openings are achieved.

The utility model relates to the technical field of ophthalmologic operation pasting films, and discloses an ophthalmologic shear-free operation pasting film which comprises a thin film, first glossy paper, second glossy paper, a tearing strip, protrusions, an adhesive strip, third glossy paper and an easy-to-tear opening, medical pressure-sensitive adhesive is arranged on one face of the thin film, the first glossy paper is bonded with the thin film through the medical pressure-sensitive adhesive, and the second glossy paper is bonded with the third glossy paper through the easy-to-tear opening. And the second glossy paper is bonded with the thin film through a medical pressure-sensitive adhesive. The utility model has the beneficial effects that the holes corresponding to the eyes are preset on the operation pasting film, the eyes can be exposed by directly taking down the stickers on the holes after the film is pasted, the use process of the operation pasting film is simplified, and meanwhile, the two pieces of smooth stickers are arranged on the sticky surface of the film, so that the operation pasting film is convenient to use. When the film is pasted, one smooth paster is taken down for preliminary positioning, and then the other smooth paster is taken down to complete integral pasting, so that the operation pasting film is more accurately pasted on the skin around the eyes of a patient, and the isolation effect and stability of the operation pasting film are improved.

The present invention discloses a surgical patch with both tissue adhesion and anti-adhesion functions and a preparation method thereof. The patch comprises a wound adhesion layer and a base layer. The wound adhesion layer contains fibrinogen and a stabilizer. Some lysine residues of the fibrinogen contain hydrophobic groups. The stabilizer is used to maintain the activity of fibrinogen. The base layer is a hydrophilic polymer porous scaffold. The surgical patch prepared by the present invention has excellent mechanical strength and adhesion performance, and its performance is significantly better than that of existing surgical adhesive products and emergency hemostasis products under the same conditions. The patch has good biocompatibility, can effectively prevent tissue adhesion, and is beneficial to promoting cell proliferation and differentiation, accelerating wound healing and the recovery of defective tissues. It has great potential in clinical applications.

A device for introduction and delivery of a self-adhesive surgical patch during minimally invasive surgery is disclosed. The device comprises a base that can be compressed to fit inside a 5 mm i.d. tubular member. In preferred embodiments of the invention, the base comprises a frame made of a compliant material. The patch is attached to the frame while the frame is in a planar open configuration. Pressure is then applied to opposite sides of the frame, compressing it to a linear closed configuration small enough to pass through a 5 mm i.d. tubular member. After passing through the tubular member, the frame is reopened to its open configuration, enabling delivery and attachment of the patch to a target tissue. A kit for providing the device is also disclosed.