72 results about "Wound edge" patented technology

In one embodiment, a wound retractor includes a plurality of straps connected between an inner ring and an outer ring assembly. The inner ring is positioned internal of the wound so that it rests against the innermost tissue layer, and the outer ring is located outside of the wound adjacent the outermost tissue layer. The outer ring assembly includes an inner ring having guide holes for the passage of the straps and an outer ring to which the straps are affixed. Rotation of the outer ring of the outer ring assembly relative to the inner ring of the outer ring assembly results in a shorting of the effective length of the straps, retraction of the wound edge and exposure of the wound site.

A wound closure including a wound bridging portion that has sufficient dimensional stability to hold the wound edges in proper alignment, even in the face of substantial stretching of the wound closure as a whole, is disclosed. The wound closure is dimensionally stable directly over the wound. The remainder of the wound closure is preferably substantially more extensible and elastic than the wound bridging portion to improve conformability and adhesion of the wound closure to the patient. The wound closures may include opposing end portions of unequal lengths yielding an asymmetric shape that facilitates close placement of the wound closures along a wound.

A vascular closure device comprising a retrievable sheath-delivered contractible, clip device with structural radial or terminal members with terminal and non-terminal hooks that engage the vessel wall. Unlike other vascular closure clips, this device is delivered on the outside rather than the inside of sheath. Closure of the tissue opening can be effected by the feet of the clip engaging the puncture, aperture, or wound edges and memory characteristics of the device cause a contraction of the members, bringing the members into apposition and the wound edges together, permitting immediate vascular closure and healing of the blood vessel. The device can be delivered and recovered by an intravascular sheath.

Incision and closure surgical device designed to assist in operative surgery as a means of effecting and repairing skin wounds. A slide fastener is fitted to a self-adhesive sheet that is attached to the skin surface. The slider of the slide fastener contains a contact electrode for electrocoagulation fitted with a cutting edge. As the slide fastener is opened, the slider simultaneously effects the incision by means of the cutting edge of the electrode, severing both the flexible sheet and the skin beneath. For closing the incision, the stringer tapes of the slide fastener interlock by the action of the slider, thereby bringing both the edges of the flexible sheet and the wound beneath into apposition. As the slider is drawn forwards closing the stringer tapes, electrical energy is applied by the electrode at the union site of the wound edges, which have previously been brought into apposition by the mechanical action of the slide fastener, thus ensuring that the edges become adhered in full depth as a result of electrical coagulation.

A retractor for placement in a wound to hold the wound open during a surgical procedure comprising a closed loop formed of a plastic material permeable to X-ray radiation, said closed loop having two opposite members that can be brought together from a starting position to enable insertion of wound edge gripping elements of the retractor into the wound and thereafter through resilience return towards the starting position and brought in contact with the edges of the wound and hold the wound edges apart and in a self-holding way retain the retractor in the wound.

An open abdomen wound as a result of injury or surgery is closed using fastener sheets, such as hook and loop fastener sheets, that are attached at opposing edges of the wound using bolsters through which surgical suture thread is passed to secure the abdominal wall between the fastener sheets and the bolsters. Tension forces are exerted on the fastener sheets and the sheets secured to one another in one or more steps drawing the wound edges toward one another. The tension forces are distributed by the bolsters to avoid loss of tissue at the wound edges. Successful closure of the wound is possible.

The invention belongs to the technical field of new indications of drugs, and particularly discloses an application of externally used skin generation oil in preparation of drugs for preventing or treating diabetic peripheral circulation disturbance and foot ulcer. The externally used skin generation oil can effectively improve low temperature at soles due to peripheral circulation disturbance in early stage of diabetic foot ulcer, recover the sole pain threshold to a normal level, accelerate diabetic foot ulcer wound repair and shorten the wound repair time. The area of a foot ulcer wound surface of a diabetic rat is reduced to (4.0 plus or minus 0.1 mm<2>) from (51.3 plus or minus 3.5 mm<2>) after treated with the skin generation oil for 35 days, the wound surface heals basically, the skin is red and dry, and the skin surface is smooth; HE (hematoxylin-eosin) dyeing results show that the skin tissue structures of the foot wound surfaces of rats in an externally used skin generation oil group and an externally used skin generation oil and metformin group is relatively complete, collagen fibers at the wound edge are arranged in order, and inflammatory cell infiltration of wound surface tissue is reduced obviously.

The invention discloses a pipe production process and pipe production equipment. The pipe production process comprises the steps of: 1) material inspection: checking the quality of a plate before blanking: (1) checking if the thickness, the length and the width of the plate met the requirements; and (2) checking if two wound edges of the plate are in parallel; 2) heating: heating a pipe blank to aneeded temperature firstly through a method of heating by a reflecting furnace after the plate is qualified; and 3) prebending: bending 1/3 of the plate width by upper and lower molds for the first time to form a J-shaped steel plate after feeding the heated pipe blank into an oil pressure bed by a conveying roller way for positioning, bending 1/3 of the plate width by the upper and lower molds relative to one end of the J-shaped steel plate for the second time to form a C-shaped steel plate, and finally, bending rest 1/3 of the plate width by the molds in the center of the plate to obtain around pipe cylinder. The pipe production process and the pipe production equipment improve the hardness and the wear resistance of the pipe through a quenching process, and can enable welding lines tobe uniform through a welding process.

The invention includes a system and method for reducing the approximation of wound edges of a stricture that affects a cross-sectional area of a lumen in a mammal. The system includes a body defining a passageway for fluid flow. The body is positionable in the lumen. The system also includes a separating device disposed relative to the body. The separating device can adjust the cross-sectional area of the lumen to reduce approximation of the plurality of wound edges of the stricture. Moreover, the separating device facilitates fluid flow through the passageway of the body.

The invention discloses a silicon-doped hydroxyapatite based vascularization-promoting porous scaffold material, and a preparation method and application of the porous scaffold material, and belongs to the technical field of biological materials. The silicon-doped hydroxyapatite based vascularization-promoting porous scaffold material has a molecular formula of Ca<10>(PO4)<6-x>(SiO4)<x>(OH)<2-x>,wherein x is more than 0 and less than 0.75. The stent material provided by the invention has directional gradient pores which are in communication along the radial direction, and meanwhile, the porescommunicate with each other, so that cell adhesion and regeneration are facilitated, and whole-layer skin repair related cells grow into the center from the edge and the bottom of a wound. In addition, the scaffold material prepared by the preparation method also has good biocompatibility, controllable biodegradability and mechanical property, and has a wide application prospect.

A wound closure device using magnets to draw skin together. When two skin adhering magnets are placed on opposite sides of a wound in a polar opposite configuration, the magnets attract each other, thus drawing the skin underneath the magnets together and reapproximating wound edges. The device includes a removable sheet having an elongated partition member that separates the first magnet from the second magnet. When the removable sheet and elongated partition member are removed from the magnets, the removal allows the magnets to draw in close together to reapproximate wound edges. To prevent slippage of the magnets, the inner edges of each magnet may have complementary notches and protrusions that align with each other, thereby preventing longitudinal movement of the magnets along their inner edges.

The present invention discloses a set of equipment which comprises an extended and biologically compatible flexible support plate. The support plate comprises the following components: at least a series of holes which extend from a bottom part to a top part and are basically positioned adjacently with a first relative edge and a second relative edge of the support plate; a bent surface which extends from a surface of a base part of the support plate to the top part; a propulsion extension part which is basically positioned at a center line of the bent surface; and a releasable locking mechanism which is positioned along a vertical axis of the bent surface adjacently with the extension part. Therefore, the releasable fixing mechanism which positions first equipment and second equipment for contacting with the skin at the edge or adjacent part of opposite wounds and inserts the propulsion extension part of the first equipment into the second equipment facilitates skin extension, wound edge approaching, wound closing or combination thereof. The invention also discloses a method for promoting skin extension, wound edge approaching or wound closing in an object, and an external member which comprises wound closing equipment and at least one propulsion extension part.

The invention provides a safety belt laser cutting device. The safety belt laser cutting device comprises a first power driving mechanism used for towing shifting of braids along a guide rail and capable of adjusting the braid conveying speed in real time, a detecting device for detecting if the braids and cut braids are qualified, a photoelectric detecting module for detecting and adjusting the braid cutting length, a laser for timely performing equal-interval laser cutting on the braids, a braid cutting and pressing module for flattening the cut braids and the edges of the braids, and a second power driving mechanism for towing unqualified cut braids to leave from the guide rail to enter a waste box. The safety belt laser cutting device can perform precise and quick segmented cutting onthe braids, and adopts the laser cutting process to effectively prevent such uneven phenomenon troubles as wound edges and drapes generated in traditional hot-melting shearing; and the safety belt laser cutting device not only can guarantee precise and quick segmented cutting of the braids, but also can guarantee smooth and tidy ends of the cut braids.

The invention discloses a method for repairing sick and disabled branches and trunks of fruit trees by utilizing germinal branches on branches and trunks. The method comprises the steps that in the period between March and May, the fruit trees enter a tree sap flowing period, repairing is conducted; sick and disabled wounds of sick and disabled dry branches are cleaned; scab part bark layers are cut off by a cutter, fresh wounds are generated on the edges of the scab parts, the upper ends of the wound edges are cleaned, old barks are cut away, new barks can grow, and the wounds are smeared with a layer of mixed paint; the upper edges of the cleaned wounds are cut into incisions in a shape like the Chinese character of 'ding'; the characteristic that many resting buds can germinate at the lower ends of the fruit tree wounds is utilized to cut back coppice shoots at the lower ends of the fruit tree wounds, short piles are reserved to promote the germination of a plurality of coppice shoots, and a plurality of new branches on the short piles are guided to the upper ends of the damaged parts of fruit trees for successive cuttage grafting one by one; cuttages are subjected to the cottage grafting in the incisions in the shape like the Chinese character of 'ding', and the cuttages and trunks are closely bound through small nails or bandages. After the cuttages survive, the small nails are pulled out, and the plastic binding strips are unfastened. The method is simple in operations, cannot damage trees, and makes the fruit trees keep high yield.

The invention discloses a traditional Chinese medicine ointment for treating burn and scald. The traditional medical science believes that burn and scald are caused by direct damages on the skin from the external hurts, such as fire toxin and heat toxin. The traditional Chinese ointment provided by the invention is prepared by selecting Radix Scutellariae, hopleaf ampelopsis root-bark, Radix Arnebiae seu Lithospermi, realgar, camphor, Rheum Officinale, Salviae miltiorrhizae, stem and leaf of slender-spike Gouania, pearl, Haloragis micrantha and Buddleja lindleyana Fort.; the traditional Chinese medicine ointment has the functions of clearing heat and discharging fire, cooling and activating blood, diminishing inflammation and relieving pain, activating blood and dispersing stagnation, and removing slough and promoting the growth of tissue regeneration; furthermore, the traditional Chinese medicine ointment is capable of improving local blood circulation and histotrophic nutrition, promoting the granulation tissues to quickly grow, enabling the wound epithelial tissues to quickly centripetally crawl, and reducing the wound edges, thereby being convenient to repair, preventing scars and contracture and softening the scars as well. Through the clinical tests, the total effective ratio reaches up to 97.5%, thereby being significantly superior to a control group; and meanwhile, the average healing time of the wound is significantly shorter than that of a control group, so that the traditional Chinese medicine ointment is worthy of promotion and application in clinic.

The invention discloses a wound suturing-free adhesive bandage. The wound suturing-free adhesive bandage comprises two adhering parts and a fixing chain, wherein a fixing layer is arranged on the surface of each adhering part; a connecting piece is arranged at one end of the fixing chain; the connecting piece of the fixing chain is fixed to the fixing layer of one of the adhering parts, and the other end of the fixing chain penetrates through the fixing layer of the other adhering part; and the fixing layers of the two adhering parts are connected through the fixing chain. According to the wound suturing-free adhesive bandage disclosed by the invention, two adhesive bandages are cut and adhered to two sides of a wound according to the shape of the wound, and are connected and closed through the fixing chain; the closing parts of the adhesive bandages are consistent with the shape of the wound edge, so that during closing, skin of the wound can be adhered to the maximum degree, and quick recovering of the skin is facilitated.

The invention discloses a first-aid hemostasis device and a using method thereof. The first-aid hemostasis device comprises a puncture needle and a handle of a U-shaped structure, wherein the two endsof the handle are connected with a needle box and a connector respectively; the puncture needle is arranged in the needle box; the two ends of the puncture needle are sleeved with fixing pieces connected to the needle box; a needle head of the puncture needle faces the connector; a spring bolt matched with the puncture needle is arranged in the connector; a push rod is arranged on the needle box;the operation end of the push rod extends out of the needle box; the other end of the push rod is in contact connection with the needle tail of the puncture needle, and through holes allowing the puncture needle to move are formed in the needle box and the connector respectively; and a clamping hook is arranged at the top of the connector, and a buckle connected with the clamping hook is arrangedon the handle. The using method comprises the steps that 1, the needle box of the handle and an opening in the middle of the connector are aligned with the bleeding wound edge, the push rod is pressed with force to enable the puncture needle to penetrate through the two sides of the bleeding wound edge and then be matched with the connector, and the needle head end of the puncture needle is fixedto the spring bolt; 2, the push rod is separated from the puncture needle, and the clamping hook is pressed to enable the connector to be separated from the handle; and 3, the handle is taken down.

A method of healing a wound including contacting a wound edge with a tropoelastin or elastin derived peptide in conditions for enabling a sustained contact of the tropoelastin with the wound edge for a time period for enabling re-epithelialization of the wound.

The invention relates to a wound edge fixation kit applied to a medical animal experiment. The wound edge fixation kit comprises an anti-contracture ring configured to prevent radial inward contracture of wound edge skin of a medical animal, wherein the anti-contracture ring is roughly annular and comprises annular side walls, and a flange extending outwards from the side walls in a radial direction. The wound edge fixation kit disclosed by the embodiment of the invention is capable of effectively preventing contracture of wound edge skin of rodents, and has excellent biocompatibility.

The invention belongs to the technical field of Chinese traditional medicine, and in particular relates to a Chinese herbal medicine composition capable of promoting wound healing and inhibiting scar formation and a preparation method and application thereof. The medicine composition is prepared from the medicinal raw materials: 3-27 parts of frankincense, 3-27 parts of myrrh, 10-90 parts of calcined dragon's bone, 10-90 parts of catechu, 8-72 parts of common bletilla tuber, 4-36 parts of salvia miltiorrhiza, 4-36 parts of dragon's blood and 4-36 parts of borneol. The Chinese traditional medicine composition provided by the invention has the advantages of rapidly arresting bleeding and alleviating pain, subduing the inflammation and promoting the subsidence of swelling, reducing exudation, promoting granulation, activating skin paddles on the granulation surface and epithelial cells on the wound edge to cover the surface of wound, accelerating healing of the surface of wound, and inhibiting the formation of scar in the healing process of injury.

The present invention pertains to a bandage for improved monitoring, healing and pain-reduction of a wound. The bandage also increases compliance for patients and for caring personal. The bandage is useful with most any wound being exposed to pressure, trauma and/or irritation. The bandage is especially useful with incisions upon surgery, preferably incisions upon abdominal and hip surgery as well as incisions upon dorsal surgery. The above features are accomplished by the wound being visible through the bandage, external pressure on the wound being redirected to areas around the wound not being compromised by surgery and possible exudate from the wound being absorbed within the bandage, as well as pressure from the bandage being exerted inwards against the wound edges thereby improving the cosmetic result.