52results about How to "Reduce postoperative infection" patented technology

The invention discloses a normal full nutrient, which is characterized by being prepared into powder by using the following materials: zymolytic rice flour, polypeptide, caseinsodium, lactalbumin, malto dextrin, vegetable oil, milk powder, dietary fibers, mineral premix, vitamin premix and the like. The normal full nutrient is characterized in that: proteins and carbohydrates, which have high bioavailability and are easy to digest, are used to quickly and timely supplement nutrients and energy, which are required by the human body, so that the synthesis and repair of the tissues of the human body can be improved; and various of dietary fibers are added into the product, the gastrointestinal diseases such as astriction and diarrhea can be regulated in a bidirectional manner and the cure success rate of serious patients and the overall conditions of patients can be improved. Meanwhile, according to the gastrointestinal tract stress difference between serious patients in clinic, a low-permeability formula suitable for early intestinal nutritional support is designed for better improving and increasing the adaptability of gastrointestinal tracts.

The present invention provides a fully nutritional formula product with special medical purposes for liver diseases. The fully nutritional formula product is characterized by comprising the following materials in proportions: pre-digested carbohydrates, compound proteins, compound fats, medicinally and edibly homologous biological resources, dietary fibers, mineral premixes, vitamin premixes, moringa oleifera powder, cyclic adenosine monophosphate, etc. The product combines the metabolic characteristics and the nutritional requirements of patients with the liver diseases, and specially the medicinally and edibly homologous biological resource ingredients beneficial to the patients with the liver diseases are added. The product can improve the malnutrition status of the patients with the liver diseases, protects liver cells and promotes the repair and regeneration of the liver cells. Besides, the product is good in palatability, convenient for combination and uses, and easy for the patients with the liver disease to accept.

The invention discloses a sealing device for a minimally invasive disposable puncture device, and relates to the sealing device matched with the minimally invasive disposable puncture device for use. The sealing device is a surgical instrument which is matched with minimally invasive endoscopy and suitable for laparoscopy and establishment of abdominal cavity operation working channels in the surgery process. The sealing device comprises a locking and fixing cover, an elastic sealing ring assembly, a compaction ring and a positioning guide cover; the upper end of the locking and fixing cover is provided with an installation platform which is provided with a plurality of positioning pillars; the elastic sealing ring assembly comprises an elastic sealing ring, elastic cloth, an upper fixing ring and a lower fixing ring; the elastic cloth is adhered to two sides of the elastic sealing ring; the upper fixing ring is fixed with lower fixing ring installation holes; the lower fixing ring is provided with sealing ring positioning protruded pillars; the upper fixing ring and the lower fixing ring are arranged on two sides of the elastic sealing ring to which the elastic cloth is adhered respectively; the elastic sealing ring assembly is arranged on the installation platform at the upper end of the locking and fixing cover; and the positioning guide cover is fixed on the upper part of the compaction ring through welding.

The invention provides a memory alloy auto-distraction locking interbody fusion cage which consists of a main body, auto-distraction holes, locking teeth, holding holes and a bone grafting hole, wherein the auto-distraction holes are symmetrically formed in two sides of the main body; the locking teeth are symmetrically formed in the upper sides and the lower sides of the auto-distraction holes, and the tooth tips of the locking teeth face outwards; the holding holes are located at the rear part of the main body; the bone grafting hole of which the shape is consistent with that of the main body is formed in the center of the main body and takes the inner edge of the main body as the boundary; and the auto-distraction locking interbody fusion cage is made from medical memory alloy. When the memory alloy auto-distraction locking interbody fusion cage is used, the locking teeth are pressurized at low temperature, and after the bone grafting hole is filled with a bone grafting material, a holder is adopted to clamp the holding holes to enable the memory alloy auto-distraction locking interbody fusion cage to enter through an operative route to be placed in an objective intervertebral space; after rewarming, the auto-distraction holes restore to the shape before pressurizing, and the tooth tips of the locking teeth are inserted into upper and lower vertebral endplates of the intervertebral space to complete distraction, pressurization and locking stabilization, so that the purpose of distracting and fixing vertebral bodies of the adjacent segments of the intervertebral space is achieved, and the operation is simple.

The invention discloses a method to make asparagus saponin that includes the process of smashing raw material, adding 2-10times alcohol, heating to 50-100 degree centigrade, extracting for 1-10 hours, filtering, concentrating, adding precipitator, centrifuging, cooling, and drying to gain raw powder, separating and purifying the raw powder to gain refined asparagus saponin. The invention has common material, easy manufacture technology, and could be used to make anticancer health care medicine or health care food.

The invention relates to a puncture sleeve device for a laparoscope puncture set. The puncture sleeve device comprises a puncture sleeve body and a two-stage sealing device, the puncture sleeve body comprises a puncture sleeve seat and a sleeve, the two-stage sealing device is mounted above the puncture sleeve seat, the sleeve is mounted below the puncture sleeve seat, an air injection valve is mounted on the side wall of the puncture sleeve seat, and the air injection valve and the puncture sleeve are integrated. The two-stage sealing device comprises a first sealing component and a second sealing component, and the first sealing component is positioned above the second sealing component. The specification of the puncture sleeve of the puncture sleeve device is 10mm, the puncture sleeve is matched with the puncture set and can directly take out tissues cut in an operation, an extra puncture channel can be decreased, injury to patients is reduced, and the puncture sleeve device is convenient to use, safe and reliable.

The invention discloses a sealing device of a minimally invasive disposable puncture apparatus, relates to a sealing device used with a minimally invasive disposable puncture apparatus, and discloses an assorted surgical instrument of a minimally invasive endoscope. The sealing device comprises a locking fixing cover, a split type elastic sealing ring assembly, a positioning compressing ring and a positioning guide cover; the split type elastic sealing ring assembly comprises an outer elastic sealing ring, an inner elastic sealing ring, a first elastic cloth layer, a second elastic cloth layer, an upper fixing ring and a lower fixing ring; an elastic ring with elastic wrinkles is arranged on the outer periphery of the outer elastic sealing ring, a compressing ring positioning groove is formed in the outer elastic sealing ring, and lower fixing ring mounting positioning holes are formed in the inner periphery of the outer elastic sealing ring; the split type elastic sealing ring assembly is mounted on a mounting platform at the upper end of the locking fixing cover, the positioning guide cover is mounted on the upper portion of the positioning compressing ring, and positioning protrusions of the positioning guide cover are pressed in positioning guide cover positioning grooves in the locking fixing cover and are fixedly welded in the positioning guide cover positioning grooves. The sealing device has the advantage that the sealing device is applicable to building working channels for abdominal cavity surgery in laparoscopy and surgery procedures.

The invention discloses a method to make asparagus saponin that includes the process of smashing raw material, adding 2-10times alcohol, heating to 50-100 degree centigrade, extracting for 1-10 hours, filtering, concentrating, adding precipitator, centrifuging, cooling, and drying to gain raw powder, separating and purifying the raw powder to gain refined asparagus saponin. The invention has common material, easy manufacture technology, and could be used to make anticancer health care medicine or health care food.

The invention relates to a laparoscope puncture outfit device. The device comprises a puncture sleeve and a puncture needle, and a channel for the puncture needle to penetrate through is arranged on the vertical center of the puncture sleeve and denoted as a puncture channel; when the device is in use, the puncture needle penetrates through the puncture channel, is inserted into the puncture sleeve, and extends out of the tail end of the puncture sleeve; an air filling valve is installed on the side wall of a puncture sleeve base and integrated with the puncture sleeve; the puncture sleeve comprises a puncture sleeve body and two levels of sealing devices, the puncture sleeve body comprises the puncture sleeve base and a sleeve body, the two levels of sealing devices are installed above the puncture sleeve base, and the sleeve body is installed below the puncture sleeve base; the air filling valve is installed on the side wall of the puncture sleeve base and integrated with the puncture sleeve. The laparoscope puncture outfit is light in overall structure and can effectively ensure a dynamic sealing effect in an operation process, it can be ensured that the an enterocoelia operation is conducted normally and fluency in an operation instrument movement process is high, the usage is convenient, and the device is safe and reliable.

The invention relates to a disposable puncture device and relates to surgical instruments matched with endoscopes outside the breast and the abdomen. The disposable puncture device is a surgical instrument which is applied to thoracic cavity and enterocoelia endoscope detection and establishing of a thoracic cavity operation working channel and an enterocoelia operation working channel in an operation process. The disposable puncture device comprises a puncture device body device, a gas-tight sealing device, a locking device and a puncture cone device. The puncture device body device comprises a puncture device body, a gas exhausting pipe, a gas exhausting core, a gas intake valve, an arc sealing seat, a gas-tight sealing hood, a puncture cone guiding hood, a moving bolt cover and a gas-tight moving bolt. The gas-tight sealing device comprises a gas-tight sealing sleeve, a supporting ring, a sealing ring, a pressing sheet and a security sealing sheet. The locking device comprises a locking ring, a cannula, a protection ring, a locking gasket, a locking hood, a tightening wheel, a locking ring and a locking wrench. The puncture cone device comprises a cross cone, a puncture rod, a puncture rod seat and a puncture positioning nut. The puncture cone device is inserted into the puncture device body by going through the puncture cone guiding hood, the gas-tight sealing hood and the sealing device.

The invention discloses a chronic subdural hematoma drill cleaning drainage pipe which comprises a rubber pipe, wherein the rubber pipe comprises a short arm and a long guide pipe; the middle part of the short arm is vertically communicated with the long guide pipe; the overall shape of the short arm and long guide pipe is of T shape; a drainage hole a is arranged in the other side of the corresponding short arm at a hollow joint of the long guide pipe and the short arm; an opening of the drainage hole a is arranged as an indent arc-shaped opening; a drainage hole b and a drainage hole c are respectively arranged at tail ends of the two ends of the short arm; the openings of the drainage hole b and the drainage hole c are arranged as downward slant openings. According to the chronic subdural hematoma drill cleaning drainage pipe provided by the invention, the short arm of the drainage pipe is in contact with brain tissue during a cleaning process; the point contact of the tip of the traditional catheter is changed into the line contact, so that the injury to the brain tissue and the cortical bridging vein is avoided; the water pressure during the cleaning process is reduced; the arachnoid is prevented from being broken; the cerebrospinal fluid is prevented from being communicated with the hematoma cavity; the occurrence rate of postoperative cerebrospinal fluid leakage is lastly reduced.

The invention relates to a disposable puncture outfit sealing device. The disposable puncture outfit sealing device is used in cooperation with a disposable puncture outfit, is a minimally invasive endoscope cooperative surgical instrument, and is suitable for establishing surgical working channels in abdominal cavity, urinary and gynecology endoscope inspection and surgery processes. The disposable puncture outfit sealing device comprises a puncture sleeve, an air injection valve, an air injection switch, an air blocking sealing fin, a plane sealing fin and a valve body upper cover. A valve body is arranged at the rear portion of the puncture sleeve and integrated with the puncture sleeve. The air blocking sealing fin is installed in a valve body inner cavity. The plane sealing fin is arranged at the rear portion of the air blocking sealing piece in the valve body inner cavity. A valve body upper cover is installed in a valve body upper cover installing groove of the valve body. The plane sealing piece tightly-pressing step is matched with a valve body upper cover tightly-pressing groove of the plane sealing fin so that the plane sealing fin and the air blocking sealing fin can be tightly pressed.

The invention relates to a disposable puncture device, which belongs to a surgical instrument matched with an external laparoscope. The invention is suitable for being used for establishing abdominal cavity surgical operation passages in the laparoscope examination and surgical process. The disposable puncture device comprises a puncture sleeve pipe, an air barrier sealing ring, a puncture devicebody, an air injection valve, a self regulating type sealing cap, an air barrier sealing sheet, a locking fixed cover, an elastic sealing cap, an upper fixed ring, a lower fixed ring, a plane sheet sealing ring, a press ring, a puncture positioning guide cover, a puncture awl and a puncture positioning cover, wherein the air barrier sealing ring is arranged on an air barrier sealing ring installing step of the puncture sleeve pipe, the puncture sleeve pipe is arranged in a puncture sleeve pipe installing hole of the lower part of the puncture device body, the air injection valve is arranged in an air injection valve installing hole at one side of the puncture device body, the air barrier sealing sheet is arranged in an air barrier sealing sheet installing clamp ring of the self regulatingtype sealing cap, the self regulating type sealing cap is arranged on a self regulating type sealing cap positioning ring at the upper part of the puncture device body, and the puncture awl is penetrated and inserted in the puncture sleeve pipe through the puncture positioning guide cover, a plane sealing sheet, the elastic sealing ring and the air barrier sealing sheet.

The invention discloses a chitosan-based bleeding stopping paste as a bone wax substitute, and a preparation method thereof. The preparation method comprises: dissolving carboxymethyl chitosan with aviscosity average molecular weight of 100000-150000 and a substitution degree of 50-150% in distilled water, adding chitosan with a viscosity average molecular weight of 100000-300000 and a deacetylation degree of more than 85%, and calcium alginate, uniformly stirring, sealing, and sterilizing with ethylene oxide. According to the present invention, the chitosan-based bleeding stopping paste hasstrong plasticity, can block bone cross-sections or any tissue gaps, and further has the bleeding stopping function, wherein the bone wax does not have the bleeding stopping function; the chitosan-based bleeding stopping paste can rapidly stop the bleeding of venous hemorrhage and capillary hemorrhage models; and CM-CS, CS and Al are natural polymer derivatives, can be completely degraded, and have good antibacterial properties, such that the postoperative infection can be reduced, and the risk of chronic inflammation and other adverse reactions can be reduced.

The invention relates to the technical field of anti-bacterial liquids, and in particular relates to a gynecological external antibacterial liquid and a preparation method thereof. The gynecological external antibacterial liquid per liter comprises the following raw materials: 1.7-1.9g of benzalkonium chloride, 30-60ml of glycerinum, 0.1-1.3g of menthol, 1-1.8g of alum, 3-6g of a traditional Chinese medicine extract and the balance of purified water. The liquid provided by the invention contains anti-inflammatory, anti-bacterial and pain-relieving components which are supplemented with one another, so that the bacteria inhibiting performance of the liquid is optimal through synergistic effect of the raw materials. The biocompatibility of the liquid is in accordance with the demand of GB / T16886.11-2011, and the microbiological indicator is in accordance with the demand of GB15979-2002. The liquid is suitable for various infections of body surface, vagina, leucorrhea, cervix uteri and cervix uteri and accelerates wound healing after physical treatment of cervical erosion, and is further suitable for daily vulva nursing of females as well as prevention, treatment and cleaning and nursing in puerperium, induced abortion, wound after vaginal side cut parturition, period and before and after sexual life.

The invention relates to a disposable puncture outfit, which belongs to the field of medical instruments, is a surgical instrument matched with a laparoscope, and is suitable for laparoscopic examination and establishment of a surgical working channel. The disposable puncture outfit includes a locking cap, a puncture cannula assembly, a locking sealing cap assembly, a locking switch, an air blocking sealing cap, an air injection valve, an air injection switch, a positioning ring, a one-way valve, a sealing patch and an air bag. The puncture cannula assembly is composed of a puncture cannula seat and a puncture cannula, and the locking sealing cap assembly is provided with a cannula elastic sealing cap, a cannula sealing cap installation seat, a locking fixing cover and a lower pressing cover. A vent groove is formed in the outer side of the puncture cannula, extends forwards to the front portion of the puncture cannula in the axial direction of the puncture tube and passes through the wire binding groove. The air bag is installed at the front end of the puncture cannula and fixed to the periphery of the wire binding groove in a binding mode, and the air outlet hole formed in the sealing patch conveys compressed air for the air bag and inflates the air bag. The positioning ring is sleeved in the middle of the puncture cannula.

The invention relates to a soft tissue repairing material as well as a preparation method and application thereof. The preparation method of the soft tissue repairing material comprises the followingsteps: carrying out decellularization, dehydration and degreasing on animal tissues, so as to obtain a dried substance; dissolving the dried substance into an acid solution, so as to obtain slurry; adding a cross-linking agent into the slurry to generate cross-linking reaction, so as to obtain reaction liquid; drying and crushing human amniotic membranes, so as to obtain amniotic membrane powder;and dispersing the amniotic membrane powder into the reaction liquid, and carrying out drying, so as to obtain the soft tissue repairing material, wherein the mass ratio of the amniotic membrane powder to the dried substance in the soft tissue repairing material is (1 to 4)-(1 to 1). The soft tissue repairing material prepared by virtue of the preparation method has relatively good mechanical supporting performance and good biocompatibility.

The invention relates to in-situ forming injectable bioactive composite hydrogel as well as a preparation method and application thereof. The composite hydrogel is formed by mixing sodium alga acid, amino acids and silicate bioceramics containing two or more than two multivalent cations serving as raw materials and performing in-situ forming, wherein the raw materials respectively comprise the following components by weight volume: 1.5-2% of sodium alga acid, 1-20% of silicate bioceramics and 0.25-2% of amino acids. According to the composite hydrogel disclosed by the invention, the inorganic component silicate bioceramics have the effect of promoting cell migration, bone formation, vascularization and other biological activities and can serve as a reinforced phase inside the hydrogel for improving the mechanical strength of the composite hydrogel, so that the composite hydrogel can provide a physical support and a good chemical environment for regeneration and reconstruction of tissues.

The invention discloses a piece of allergy-preventing elastic fixing clothes used after bromhidrosis operation. The allergy-preventing elastic fixing clothes is characterized by comprising a clothes body portion, upper arm portions and oxter portions, wherein the upper end of the clothes body portion is provided with a neckline, the lower end of the clothes body portion is provided with an opening, the oxter portions are provided with sterile gauze layers, the rear sides of the oxter portions are connected with the rear side of the clothes body portion and the rear sides of the upper arm portions, and the front sides of the oxter portions are detachably connected with the front side of the clothes body portion and the front sides of the upper arm portions. The allergy-preventing elastic fixing clothes used after bromhidrosis operation does not need adhesive plasters, can avoid cut exposure, effectively compress operation area and prevent sterile gauze from dropping or displacing.

The invention provides a mechanical perfusion system. The mechanical perfusion system is characterized by comprising coatings prepared from graphene oxide and antimicrobial peptide; particularly, theperfusion system comprises an organ perfusate storage device and an organ storage device, the organ perfusate storage device and the organ storage device comprise graphene oxide and antimicrobial peptide, the graphene oxide and the antimicrobial peptide are prepared into the coating to coat the inner walls of the organ perfusate storage device and the organ storage device. The mechanical perfusionsystem can alleviate the postoperative infection phenomenon of organ transplantation, provide a stable internal environment for the organs and have good market prospects and high social public welfare value.

The invention discloses a disposable laparoscopic soft instrument sheath device which relates to an endoscopic matching surgical instrument, which is used for gynecological pneumoperitoneum-free suspension laparoscopic surgery and small incision surgery, and is used for expanding incision field, protecting incision from injury and reducing incision infection. The device comprises an instrument introduction assembly, an intake and exhaust protector body, a locking mechanism and a cut-in sleeve. An instrument introduction sleeve device in that instrument introduction assembly comprise a fixing ring, an instrument introduction sleeve, a gas-blocking upper seal sleeve, a gas-blocking sleeve, a gas-blocking re, a gas-blocking lower seal sleeve and a connecting seat. The puncture sealing sleevedevice comprises a puncture sealing sleeve, a sealing gasket, a sealing fixing ring, a sealing gasket and a sealing connector. The intake and exhaust protector body comprises an intake valve, an exhaust valve, a connecting bottom pipe and an intake and exhaust ring body. The connecting and locking mechanism comprises a fixed ring body piece, an inner bayonet plate, an outer bayonet plate and a locking buckle. The cutout access sleeve comprises an access sleeve connector, an access sleeve outer ring, an access sleeve passage and an access sleeve insertion ring.

The invention discloses liquid traditional Chinese medicine for dental implant, and a dental implant method. The liquid traditional Chinese medicine for dental implant is prepared from the following raw materials: a honeysuckle flower extract, a herba taraxaci extract, a radix sophorae tonkinensis extract, a rhizoma curcumae extract, sucrose and water. The liquid traditional Chinese medicine for dental implant can effectively control the pain, inflammation and swelling at the surgical area during a dental implant surgery, reduces postoperative infection and swelling, and effectively improves the success rate of dental implant. Furthermore, the liquid traditional Chinese medicine has an effect of efficient sterilization, thus effectively preventing the occurrence of peri-implantitis, further prolonging the service lives of implanted teeth and other natural teeth, and shortening postoperative recovery time.

The invention relates to the technical field of animal husbandry, and discloses an animal husbandry piglet castration fixing device. The piglet castration fixing device comprises a fixing plate; one end of one side of the upper surface of the fixing plate is fixedly connected with one end of a supporting plate; the other end of the supporting plate is fixedly connected with one end of a connecting shaft, and the other end of the connecting shaft is connected with one end of a connecting side plate in a sleeving mode; one side of the connecting side plate is fixedly connected with one side of a movable plate; the upper surface of one side of the movable plate is fixedly connected with one end of a second connecting rod; the other end of the second connecting rod is connected with one end of a fifth connecting block in a sleeved mode through a connecting rod; and the other end of the fifth connecting block is fixedly connected with the upper end of the outer side of an arc-shaped connecting plate. According to the piglet castration fixing device, through cooperation of arc-shaped limiting side plates capable of being turned over, an air pressure rods and a second connecting rod, under the action of the gravity of a piglet, the piglet can be self-locked, the piglet is prevented from escaping when castrated, meanwhile, the piglet is conveniently taken and placed, and the piglet castration efficiency is improved under the condition that the safety of veterinarians is guaranteed.

The invention discloses a needle electrode for radiofrequency ablation. The needle electrode comprises a handle, an electrode working end, a power line, a front sleeve, a rear sleeve and a spring, thetwo ends of the handle are connected to the front sleeve and the rear sleeve respectively, the spring is located in the front sleeve, the front end of the rear sleeve is located in the front sleeve,and the rear sleeve can move along the inner wall of the front sleeve; a front chuck is arranged at the front end of the front sleeve, and a tail chuck and a rear chuck are arranged at the front end and the rear end of the rear sleeve respectively; a protective hose and a conductive wire are arranged in the electrode working end, a gap is formed between the electrode working end and the protectivehose, the conductive wire is located in the protective hose, the front ends of the protective hose and the conductive wire are connected to an electrode tool bit, the rear end of the conductive wireis connected to the power line, and the electrode tool bit extends out of the front end of the electrode working end; and the front chuck and the tail chuck are fixedly connected to the electrode working end. The needle electrode has the advantages that the electrode tool bit is bendable, controllable in locking, flushable, large in ablation range, and accurate and controllable in a treatment area.

The invention discloses a safe dental implant restorative liquid and a preparation method thereof. The safe dental implant restorative liquid comprises the following raw materials in parts by weight: 60-80 parts of water, 20-30 parts of traditional Chinese medicine extract, and 10-30 parts of pearl extract 20 parts, 1‑5 parts of repair synergist, 5‑10 parts of honey. The safe dental implant repair liquid and the preparation method thereof of the present invention can effectively reduce postoperative infection and swelling, minimize trauma, reduce the occurrence of inflammation, speed up the restoration of dental implants, and improve the success of dental implants. Prolong the lifespan of implants and natural teeth.

The invention belongs to the technical field of implant materials, and particularly relates to a magnesium alloy microtubule for medical implantation and a preparation method thereof.A magnesium-based metal coating is evenly prepared on the surface of a bar through a coating deposition technology, then a bar base body is removed through a melting method, and therefore, the magnesium-based metal microtubule is obtained. The microtubule is characterized in that the tube diameter thereof is 1-5mm, the thickness of the tube wall is 50-500[mu]m, and the base body is made of any one of low-melting-point metal bismuth, indium and tin or a quartz glass tube. Compared with the prior art, the magnesium alloy microtube has the beneficial effects that 1) the requirements of different implantation parts on mechanical properties and structures are met, 2) the magnesium alloy ,microtube has good biocompatibility, an alkaline environment generated by degradation of magnesium in vivo is utilized to provide an antibacterial function, and magnesium ions generated by degradation and beneficial alloy elements promote cell proliferation, so that repair of blood vessels and nerves is promoted; 3) the problem of difficulty in traditional plastic processing of the magnesium-based metal microtube is avoided, and 4) different sizes of magnesium-based metal microtubes can be manufactured, and the degradation speed is controllable.

The invention discloses an incision sealing negative pressure drainage device which comprises a sponge dressing and a drainage tube device, a round hole is formed in the center of the sponge dressing, and the lower end of the drainage tube device penetrates through the round hole and then is placed into a hand postoperative closed incision; the drainage tube device comprises a head, a neck and a tail, the lower end of the head is connected with the neck, a middle drainage hole is formed in the middle of the head and is of a bucket-shaped structure, the bottom of the neck is connected with the tail, a center drainage channel is formed in the middle of the neck and the middle of the tail, and the top of the center drainage channel is communicated with the middle drainage hole. A drainage groove is formed in the outer surface of the tail portion, a side drainage hole is formed in the drainage groove, and the side drainage hole is communicated with the center drainage channel. The device not only can solve the drainage problem of the surgical incision, but also can improve blood supply of the surgical incision, reduce incision scars, promote soft tissue detumescence and incision healing, avoid postoperative incision dressing change, reduce incision infection and avoid the situation that a drainage tube needs to be additionally provided with a hole.

The invention discloses a sealing device for a minimally invasive disposable puncture device, and relates to the sealing device matched with the minimally invasive disposable puncture device for use. The sealing device is a surgical instrument which is matched with minimally invasive endoscopy and suitable for laparoscopy and establishment of abdominal cavity operation working channels in the surgery process. The sealing device comprises a locking and fixing cover, an elastic sealing ring assembly, a compaction ring and a positioning guide cover; the upper end of the locking and fixing cover is provided with an installation platform which is provided with a plurality of positioning pillars; the elastic sealing ring assembly comprises an elastic sealing ring, elastic cloth, an upper fixing ring and a lower fixing ring; the elastic cloth is adhered to two sides of the elastic sealing ring; the upper fixing ring is fixed with lower fixing ring installation holes; the lower fixing ring is provided with sealing ring positioning protruded pillars; the upper fixing ring and the lower fixing ring are arranged on two sides of the elastic sealing ring to which the elastic cloth is adhered respectively; the elastic sealing ring assembly is arranged on the installation platform at the upper end of the locking and fixing cover; and the positioning guide cover is fixed on the upper part of the compaction ring through welding.

The disposable incision protective sleeve of the present invention relates to an endoscope matching surgical instrument, and is used in gynecological pneumoperitoneum suspension laparoscopic surgery and small incision surgery to expand the incision field and protect the incision from damage and reduce wound infection. It includes a puncture sleeve device, an outer ring device and an insertion ring device; the outer ring device includes a lower connecting seat, a fixed ring, an upper cover plate, an outer ring, a protective sleeve ring body, a gas-blocking sealing ring and an upper buckle plate; the puncture sleeve The pipe device includes an exhaust puncture sleeve and a puncture sleeve, and the exhaust puncture sleeve includes an air intake valve, an air intake sleeve, a sealing gasket, an upper fixing ring, a gas-blocking sealing sleeve, a lower fixing ring, an upper air intake Connecting seat and gas blocking ring; puncture sleeve includes sealing sleeve, sealing gasket, upper fixing ring, gas blocking sealing sleeve, lower fixing ring, sealing upper connecting seat and gas blocking ring; inserting ring device includes lower buckle plate , into the ring and the lower cover.