39results about How to "Avoid healing" patented technology

A device for reducing or removing stenosis present in a blood vessel by means of a working catheter (7) is described. The working catheter comprises a lumen (8) forming a first working channel (9), extending from the distal end (11) to the proximal end of the working catheter for inserting an instrument (38) to reduce or remove the stenosis. Furthermore, a balloon catheter (16) is provided, which is configured separately from the working catheter, the balloon catheter comprising a sealing balloon (22) in the region of the distal end (21) thereof. The balloon catheter comprises two lumen (18, 20) that are configured separately from each other, of which one is connected to the sealing balloon for the dilation of the same, while the other one forms a second working channel (19) extending from the distal end to the proximal end of the balloon catheter. The sealing balloon is configured for the lateral encompassing of the distal end region of the working catheter such that if a working catheter and a balloon catheter are inserted into the blood vessel next to each other a seal is formed between the outsides of the working catheter and of the balloon catheter and the inside wall of the blood vessel by means of the dilated sealing balloon.

The present invention relates to the formation of a double angle V-groove in the backside of plastic shells to provide a preweakened section for a vehicle application. The double angle V-groove may be located at the airbag deployment opening of a vehicle.

The invention discloses a rejuvenation method of ancient tea trees, and relates to the technical field of rejuvenation of the ancient tea trees. The rejuvenation method of the ancient tea trees is provided in order to solve the problems that existing ancient tea trees grow in a recession mode and decay. The method includes the following steps of root ditching rejuvenation, scar or tree hole repairing and supplementing of ancient tea tree nutrients. The rejuvenation method of the ancient tea trees is simple in step, obvious in effect and high in rejuvenation success rate.

The invention discloses a composite steel slag grinding aid, and belongs to the technical field of industrial waste residue recovery. The composite steel slag grinding aid comprises a polyallylamine mixture, grinding-aid granules, an egg yolk hydrolysate, a camellia seed meal hydrolysate, tackifier, thixotropic agent and inorganic salt, wherein the polyallylamine mixture is obtained by introducingcarbon dioxide into a mixture of polyallylamine and water; the grinding-aid granules are prepared by mixing fly ash and sepiolite; the egg yolk hydrolysate and the camellia seed meal hydrolysate arerespectively obtained through enzymolysis of egg yolks and camellia seed meals, and then concentration; the tackifier is prepared from coal tar and carrageenan; and the inorganic salt is prepared frompotassium permanganate and ammonium nitrate. The composite steel slag grinding aid will not affect an activity, and has a good grinding-aid effect.

The invention relates to devices, systems and methods for caring for amputations (e.g., limb amputations, digit amputations). Specifically, the invention relates to devices and systems (e.g., dressing systems) for secure placement of wound dressing material (e.g., dressing material, bandage material) on the body of a subject.

The invention relates to medical equipment and particularly relates to a pair of minimally-invasive surgery scissors for cutting tendon tissues. The pair of minimally-invasive surgery scissors comprises a dilating tube and a probe inserted into an inner cavity of the dilating tube, wherein a connection plate is arranged between a dilating catheter and the tube wall of the dilating tube; the connection plate is an arc plate with the same radian as the tube wall of the dilating tube; the arc length of the arc plate is less than a quarter of circumference; and moreover, the pair of minimally-invasive surgery scissors is also provided with a pair of dual-blade scissors inserted into the inner cavity of the dilating tube. The pair of minimally-invasive surgery scissors for cutting tendon tissues has the advantages of simple structure, convenience in operation and small surgical wound; and the tendon can be cut off during surgery while a section of tendon can be cut, the healing of the cut tendon is avoided, and postoperative relapse rarely happens.

The invention relates to a supporting balloon capable of realizing prostate directional dilation. The supporting balloon comprises a body and a supporting balloon arranged on the body, wherein a knife body used for realizing directional dilation is arranged on the outer side wall of the supporting balloon. The supporting balloon has the beneficial effects that a prostate dilation knife is arranged on the wall of the balloon, so that the supporting balloon can be used for realizing directional dilation for a prostate for a patient; meanwhile, a directional dilation cut is opened by the supporting balloon to prevent the prostate from healing along the former cut so as to enlarge the urethra of the prostate part to achieve the prostate treatment effect; and in addition, the supporting balloon is simple to operate, convenient to use and low in trauma without causing sequela to patients.

The invention discloses a titanium concentrate grinding aid, which is characterized by comprising the following steps: adding 25-30% of glycerol by mass ratio in a reaction container, adding 50-60% triethanolamine by mass ratio, adding about 15% of mixture of neutralized formic acid and sodium dodecanesulphonate, then mixing and stirring, wherein the stirring speed is 400-500rotation/minute and the stirring time is 1.5-2 hours, and obtaining the titanium concentrate grinding aid. The mass ratio of glycerol to triethanolamine to neutralized formic acid to sodium dodecanesulphonate is 4: 8: 1: 1. Addition of the grinding aid can solve the problem of electrostatic interaction generated during the grinding process of titanium concentrate, so that good grinding effect is reached, and power consumption is saved.

The present invention provides systems and methods for treating wounds in patients who lack the innate ability to regulate glucose (e.g., diabetic patients). In one aspect of the invention, a method includes positioning an internal bypass device within the duodenum to inhibit contact between chyme passing therethrough and an internal wall of the duodenum and maintaining the internal bypass device within the duodenum for a sufficient period of time to decrease insulin resistance and reduce a blood glucose level in the patient. The internal bypass device increases peripheral blood flow and elevates an immune system response to accelerate healing of the wound.

The invention discloses an intraoral cyst post-fenestration maintaining device and a manufacturing method thereof. The maintaining device comprises a cyst cavity external fixation body and a soft drainage tube. The cyst cavity external fixation body is matched with soft and hard tissue on the periphery of a cyst windowing area, and the top end of the cyst cavity external fixation body is flush with the top end of molar teeth. One end of the soft drainage tube is connected with the cyst cavity external fixation body and is matched with and corresponds to the cyst windowing portion in shape. The cyst cavity external fixation body is formed by combining a soft layer and a hard layer, the inner soft layer can avoid pressing pain, and the wearing comfort is improved; the outer hard layer plays a role in maintaining the shape and ensuring the strength. Due to the drainage tube with the sterile hose as a stretching-in portion, the effect of preventing the windowing portion soft tissue from healing can be achieved, and meanwhile the phenomenon that food residues fall into the cyst cavity in the feeding process is avoided. The maintaining device prevents post-operation soft tissue from healing, maintains the cyst cavity to be open, avoids exogenous infection, and meanwhile has the advantages of being comfortable to wear and use, not affecting language and feeding, and the like.

In various embodiments, a support system includes a cover sheet with number of layers. In certain embodiments, a top layer and a bottom layer are bonded to middle spacer layer.

The invention discloses an annular cutting and coagulating device for minimally invasive arachnoid cyst fistulization, which comprises a first electrocoagulation burning piece and a second electrocoagulation burning piece. The first electrocoagulation burning piece is communicated with a monopole electrocoagulation providing piece at a first working position and executes electrocoagulation and crevasse at the end part of the first electrocoagulation burning piece; the first electrocoagulation burning piece and the second electrocoagulation burning piece are respectively communicated with the positive electrode and the negative electrode of the bipolar electrocoagulation providing piece at the second working position and execute electrocoagulation and cutting between the end part of the first electrocoagulation burning piece and the end part of the second electrocoagulation burning piece; and the opposite part of the end part of the first electrocoagulation firing piece and the end part of the second electrocoagulation firing piece rotates around an axis perpendicular to a plane to be fistulized. The annular cutting and coagulation device for the minimally invasive arachnoid cyst fistulization has the advantages that the structure is simple and practical, the operation complexity is reduced, the required operation space is small, the fistulization success rate is effectively increased, and the like.

The invention belongs to the technical field of medical auxiliary appliances, and particularly relates to a post-epidermis transplantation receiving area wound surface protection device for vitiligo treatment, which comprises an external protection shell, three straight notches are formed in the outer circumferential surface of the external protection shell, and guide chutes are formed in the left and right side surfaces of the inner walls of the three straight notches; sliding base blocks are arranged in the three straight notches, the left sides and the right sides of the sliding base blocks are slidably connected with the guiding sliding grooves correspondingly, and adjusting and controlling bolts are installed on the upper surfaces of the sliding base blocks in a threaded mode. The covering and fixing use of a forearm skin-receiving area can be completed by utilizing a covering and pressing spring, the situation that healing is affected by displacement of the skin-receiving area is effectively prevented, the forearm of a user and an external protection shell are connected, limited and fixed through an air bag and an air bag strip, and the isolation protection use of the forearm is completed through the external protection shell; therefore, the wound surface of the receiving area after epidermis transplantation during vitiligo treatment is protected.

The invention relates to a medical instrument, in particular to a minimally invasive surgery instrument for carpal tunnel syndrome. The instrument comprises an expansion tube and a probe used for being plugged in an inner cavity of the expansion tube, a connecting plate is arranged between a dilating catheter and the tube wall of the expansion tube, the connecting plate is an arc plate with the radian equal to that of the tube wall of the expansion tube, and the arc length of the arc plate is smaller than one fourth of circumference; the instrument is additionally provided with dual-blade scissors plugged into the inner cavity of the expansion tube. The minimally invasive surgery instrument for carpal tunnel syndrome is simple in structure, convenient to operate and small in surgical wounds and can cut off tendons in surgery and cut off a section of tendon, and the cut-off tendons are prevented from healing and less prone to relapsing after surgery.