46results about How to "Easy to suture" patented technology

The invention discloses a laparoscopic surgery suture device, which relates to the technical field of medical instruments, and comprises a shell, a forceps seat arranged at the front end of the shell, a forceps clip assembly arranged on the forceps seat, and a movable handle, a fixed handle and a reset reed which are arranged at the rear end of the shell, the forceps clip assembly comprises a rotating shaft rotationally mounted on the forceps seat, and a first forceps clip arm and a second forceps clip arm which can be relatively rotationally mounted on the rotating shaft; the forceps clip assembly is provided with a squeezing assembly used for squeezing a notch, and the squeezing assembly comprises a driving part which is installed on the arc-shaped outer wall of the first forceps clip arm and the arc-shaped outer wall of the second forceps clip arm in a mirror image mode; and the driven piece is slidably connected to the first forceps clip arm and the second forceps clip arm, and the bottom surface of the driven piece is fixedly connected with a supporting spring. Effective extrusion of an incision can be achieved in the suturing process, the situation that the incision is sutured only through the pulling force of a suture line is avoided, and therefore the wound closing stability and the healing effect are remarkably improved, and tissue damage is reduced.

The invention relates to an absorbable double-layer membrane for guiding oral gingival tissue regeneration and repair and a preparation method thereof, the double-layer membrane comprises a compact layer and a loose layer, the compact layer is formed by PCL fibers, and the loose layer is formed by recombinant collagen / polyhydroxyalkanoate blend fibers. Wherein the PCL compact layer can be well stitched, and plays a protective role during open type healing. The recombinant collagen / polyhydroxyalkanoate blend fiber loose layer solves the problems of hydrophobicity of polyhydroxyalkanoate and low strength and too fast degradability of single recombinant collagen, and is more beneficial to fixation of blood clots and ingrowth of soft tissue cells, and inflammatory response is reduced. According to the double-layer membrane disclosed by the invention, the degradation time and the strength are highly matched with gingival tissues by optimizing the components, the proportion and the like, so that the regeneration and the repair of the gingival tissues can be better promoted, and the double-layer membrane has a remarkable clinical application value.

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal wall puncture stitching instrument with a guide hole device. Comprising a puncture cannula device, a guide hole device, a puncture cone device and a threading hook, the puncture cannula device comprises a puncture cannula seat, a gas injection valve, a gas injection switch, a gas blocking valve, a rotary switch, a spring, a puncture cannula seat sealing cover, a lower sealing cover, a blocking piece fixing ring, a blocking piece, an upper pressing plate, an elastic sealing cap inner ring, a lower pressing plate, a self-debugging sealing cap and a positioning guide cover. The guide hole devices are arranged on the two sides of the puncture cannula device and symmetrically distributed with respect to the center line of the puncture cannula device, and each guide hole device is provided with a left guide hole, a right guide hole, a guide hole upper inlet and an auxiliary fixing hole. The puncture cone device comprises a puncture cone, a release switch, a puncture cone seat, a pressing key, a puncture cone guide hole I and a puncture cone guide hole II; the threading hook comprises a handle, a push handle reset spring, a push handle, a handle cover, a line pulling hook, a sleeve, a needle head tube and a suture line clamp.

The utility model relates to the field of leather processing, and discloses a sewing device for leather chair cover processing, which comprises a working plate, the working plate is fixed on the bottom surface of a sewing machine, two positioning plates are fixed on the bottom surface of the working plate, one side of each positioning plate is rotatably provided with a rotating plate, one side of each positioning plate is fixedly provided with a positioning column, and the other side of each positioning plate is provided with a rotating shaft. A rotating hole is formed in one side of the rotating plate, movable plates are arranged above the rotating plate, connecting plates are fixed to the two sides of the rotating plate and the two sides of the movable plates respectively, sliding rods are slidably inserted into the connecting plates, springs surround the surfaces of the sliding rods, and a pressing strip is rotationally arranged between the two movable plates. According to the leather chair cover pressing and smoothing device, a worker can place the pressing strip between the two limiting columns, due to the fact that the spring is in a pulled state, the spring can apply downward acting force to the pressing strip, leather can be pressed and smoothed, the leather can be pressed and smoothed without adjustment, and the machining efficiency of the leather chair cover is improved.

The surgical bent forceps comprise a bent forceps tube body, one end of the bent forceps tube body is provided with a forceps head mechanism, and the other end of the bent forceps tube body is provided with a handle assembly; the tong head mechanism comprises a connecting piece, a connecting rod assembly installed in the connecting piece, and an upper tong head and a lower tong head which are installed on the connecting rod assembly. One end of the connecting piece is rotationally connected with the bent clamp pipe body; the handle assembly comprises two mounting parts and two handle parts, one mounting part is connected with the bent clamp pipe body, and the other mounting part is provided with an angle adjusting mechanism with a knob; a traction assembly is arranged in the bent pincer pipe body, one end of the traction assembly extends into the connecting piece to be connected with the connecting rod assembly, and the other end of the traction assembly extends out of the bent pincer pipe body to be rotationally connected with the installation part of the installation angle adjusting mechanism and extends out of the installation part to be connected with the angle adjusting mechanism. By arranging the angle adjusting mechanism, the forceps head mechanism can be driven to rotate, and the problem that a forceps head and an operating forceps body of an existing operating forceps cannot rotate relatively is solved.

The invention discloses an adjustable stitching instrument for temporomandibular joint disc reduction, and relates to the technical field of temporomandibular joint disc stitching, the adjustable stitching instrument comprises a base, one side of the base is fixedly connected with a mounting belt, one end of the mounting belt is sleeved with a buckle shaped like a Chinese character'ri ', one side of the base is fixedly connected with a first sponge pad, and the other side of the base is fixedly connected with a second sponge pad. A second sponge mat is fixedly connected to one side of the base, an adjusting sewing mechanism is installed on the upper surface of one end of the base and used for adjusting the position of a sewing needle, and an auxiliary adjusting mechanism is installed on the upper surface of the other end of the base. According to the adjustable stitching instrument for temporomandibular joint disc reduction, the first wire tensioning rod and the second wire tensioning rod are designed, an arc-shaped circular bead hooks a positioning wire, a wire tensioning spring enables a first wire tensioning clamp and a second wire tensioning clamp to rotate relatively, and a wire hooking groove in one end of a stitching needle hooks the positioning wire of the first wire tensioning rod and the positioning wire of the second wire tensioning rod; the effect that the thread hooking operation is safe and accurate during sewing is achieved.

The utility model belongs to the technical field of medical instruments, and particularly relates to an artificial implant support which is provided with a plurality of support connecting holes used for being connected with a valve leaflet mechanism. The bracket connecting hole is a rectangular hole; the artificial implant stent comprises an outflow section, the outflow section comprises a plurality of outflow section frame units and a plurality of outflow section connecting areas, the outflow section frame units are sequentially connected end to end, and the outflow section connecting areas serve as stent connecting parts and are provided with stent connecting holes. The support connecting holes are rectangular holes, compared with a plurality of round holes, sewing of a plurality of circles of sewing lines is easier, and separation of the valve leaflet mechanism and the artificial implant support caused by fracture of the sewing lines is prevented. In addition, the design of the rectangular hole has enough space, so that the connecting piece of the valve leaflet mechanism penetrates out of the outer side of the artificial implant stent from the inner side of the artificial implant stent through the stent connecting hole.

The utility model discloses a firm shoe flower buckle component, relates to shoe flower buckle technical field, including shoe buckle component and interface component, the shoe buckle component includes shoelace buckle and hole shoe buckle, the bottom surface of shoelace buckle is provided with first thread groove, the upper surface of shoelace buckle is articulated with elastic sub buckle through pin roll. The shoe buckle assembly and the connector assembly are matched with each other, the large connector can be installed on the shoelace buckle and the hole shoe buckle through the first threaded column, and meanwhile the small connector can be installed on the shoelace buckle and the hole shoe buckle through the second threaded column, so that after the large connector or the small connector is combined with an object to be adhered, the object to be adhered can be adhered to the object to be adhered. The shoelace buckle or the holed shoe buckle can be replaced according to the use condition, so that the problem that the holed shoe buckle and the shoelace buckle in the market must be two independent products is solved, and the current situation that the shoe buckle in the current market is relatively single and is not suitable for all holed shoes is avoided.

The invention belongs to the technical field of medical instruments, and particularly relates to a multifunctional traction aspirator. The endoscope retractor is reasonable in design, the retractor and the suction tube can be assembled in vivo, unnecessary body surface openings are effectively reduced, wounds are reduced, and the endoscope retractor can be used for tissue traction under an endoscope operation; and blood water flushing can be carried out while tissue traction is carried out in an operation without interrupting an operation view. The drag hook and the filtering assembly are prepared through the biological material 3D printing technology, the edge of the drag hook is smooth, tissue protection is facilitated, and especially in the thyroid surgery, compared with the needle-head-shaped design of an existing drag hook, the plate-shaped hook head design of the drag hook can avoid in-vivo injuries. The handle part is provided with the breather pipe, the suction function can be controlled through thumb pressing, and operation is convenient and fast.

The invention relates to an intravascular stent. The intravascular stent comprises a covered stent; the artificial blood vessel is provided with a connecting end and an opening end; the connecting end is fixedly connected with the covered stent, and the artificial blood vessel and the covered stent jointly define a circulation channel; the first skirt structure is connected to the peripheral face of the artificial blood vessel in a surrounding mode, and a first containing space with an opening is formed between the first skirt structure and the peripheral face of the artificial blood vessel; the skirt structure is arranged close to the open end of the artificial blood vessel, and an opening of the first containing space faces the open end of the artificial blood vessel. According to the intravascular stent, the suturing difficulty can be reduced, and blood leakage at the suturing position after the intravascular stent is sutured with an autologous blood vessel is avoided.

The utility model discloses a special edge folding device for knitwear and textile processing, which belongs to the field of knitwear and textile processing and comprises a body mechanism, a positioning mechanism is fixedly connected to the outer end of the body mechanism, edge folding mechanisms are slidably connected to two sides of the positioning mechanism, and the positioning mechanism comprises an adjusting frame. The two ends of the adjusting frame are slidably connected with positioning plates, the bottom ends of the pair of positioning plates are fixedly connected with a plurality of anti-falling heads which are distributed at equal intervals, and the rear ends of the positioning plates are fixedly connected with movable rods, so that by arranging the positioning plates and the movable rods, the positioning plates are matched with the anti-falling heads at the bottom ends to be respectively positioned at the two ends of the knitted textile; and the positioning plate can be used for fixing and processing knitwear and textiles with different length specifications, so that the device can be used for conveniently positioning the knitwear and textiles so as to realize edge folding work on multiple sides, and the knitwear and textile processing efficiency of the device is improved.

The present invention relates to a tail thread retracting and releasing device for double needle sutures in thoracoscopic surgery, comprising a top, a spacer, a bottom, a side wall and a double needle suture, wherein the top is connected to the spacer through an upper column, the bottom is connected to the spacer through a lower column, a protrusion is arranged on the upper end surface and the lower end surface of the side wall, a card slot connected to the protrusion of the side wall is arranged on the top and the bottom, a roller is arranged on the lower column, one end of the double needle suture is arranged to be connected to the upper column, and the suture winding of the double needle suture is arranged on the roller. The present invention is simple to use, avoids the thread sheathing of the tail thread during suturing, makes suturing convenient, and improves the operability and safety of the operation.

The utility model discloses a hemming fixing device for a sewing machine, and relates to the technical field of sewing machines, the hemming fixing device comprises an L-shaped plate, the right side surface of the L-shaped plate is fixedly connected with a fixing plate, a jacking assembly is arranged below the fixing plate, the jacking assembly comprises two sliding grooves formed in the upper surface of the fixing plate, the inner wall of each sliding groove is connected with an L-shaped rod in a sliding mode, and the L-shaped rod is fixedly connected with the L-shaped plate. The left ends of the two L-shaped rods are jointly and fixedly connected with a jacking roller. Through cooperation of the jacking roller, the fixing plate, the L-shaped plate and the arc-shaped pressing plate, by means of the space formed by the jacking roller, the fixing plate and the L-shaped plate, after the side edge of the cloth penetrates through the fixing plate and the L-shaped plate, the cloth can surround the outside of the jacking roller, the cloth can be bent, meanwhile, the arc-shaped pressing plate can press the side edge of the bent cloth, and therefore the cloth can be bent. The side edges of the cloth can be rolled up, the rolled side edges can be fixed, the rolled edges of the cloth can be more uniform, the cloth can be more tidy after being sewn, and therefore the overall appearance and quality are improved.

The application relates to a ligament rupture repair implant, belonging to the field of ligament repair technology, which comprises an implant body and a net body, the implant body is used for being inserted between two ends of a ligament tear, and the net body is provided with one at each end of the implant body, and the net body is circumferentially arranged on the implant body. The application has the advantages that a suture can be easily sutured to the net body circumferentially arranged on the implant body, suture operation of medical staff is facilitated, and in the suture process, the net body can be deformed along with the suture of the suture, the possibility of causing a ligament tear during suture is reduced, and the suture effect of the implant at the ligament tear is improved.

The utility model discloses a suturing matching supporting device, which belongs to the technical field of medical instrument auxiliary equipment and comprises a lower cover plate, a connecting plate is fixedly welded at the bottom of the lower cover plate, the side wall of the connecting plate is welded with the side wall of a movable plate, and a sliding rail for connection is arranged on the end face of the lower cover plate; a T-shaped sliding plate used for connection is welded to the bottom of the upper cover plate, the sliding plate is in sliding connection with the sliding rail, and the upper cover plate abuts against the lower cover plate; an upper arc plate and a lower arc plate which are movably connected are arranged in the upper cover plate and the lower cover plate respectively, and the side wall of the lower arc plate is connected with the lower cover plate through a spring with a damper. And the top of the bottom plate is symmetrically provided with two sliding rods used for limiting, a threaded rod convenient to drive is arranged between the two sliding rods, and the threaded rod and the sliding rods are connected with the movable plate. The arm fixing device not only can fix the arm of a patient for multiple times, but also can adjust the position of the connecting plate according to the height of the patient, so that the practicability of the device is improved.

The invention discloses a hysteroscope suturing device, and relates to the field of medical instruments, the hysteroscope suturing device comprises a handle rod, a catheter and a mounting tube, the handle rod, the catheter and the mounting tube are fixedly connected in sequence, the end part of the mounting tube is provided with a through groove, and the inner side surface of the through groove is rotatably connected with a movable clamp body; and a fixed clamp body corresponding to the movable clamp body is mounted at the end part of the mounting pipe. According to the suturing device under the hysteroscope, the driven clamping wheel and the driving clamping wheel are arranged in the movable clamp body and the fixed clamp body respectively, and the matched needle clamping grooves are formed in the surfaces of the driven clamping wheel and the driving clamping wheel, so that the suturing device under the hysteroscope is convenient to use under the cooperative use of the control assembly; by means of the structure, the suture needle can be conveniently driven to rotate by a large margin to penetrate through tissue in the suture process, the action times of clamping and rotating of the suture needle can be reduced, and therefore the suture efficiency of the intrauterine tissue is effectively improved, and the suture process is more convenient.

This invention relates to the field of gypsum board processing technology, specifically to a gypsum board sewing device, comprising a sewing machine body and sewing components. A sewing frame is installed on the top inner wall of the sewing machine body. The sewing frame includes a first inclined frame and a second inclined frame arranged symmetrically. A hydraulic cylinder is provided at the top of both the first and second inclined frames. Several sewing components are evenly distributed within the sewing frame. Compared with existing technologies, this invention, by setting up a sewing machine body, a sewing frame, a first inclined frame, a second inclined frame, and hydraulic cylinders, can install the sewing components between a first and a second gypsum board in a processing groove, thereby achieving effective fixation of the two gypsum boards. The fixation effect is good, resulting in stronger stability of the sewn gypsum board and making it less prone to cracking during subsequent use. Simultaneously, the operation is simple and easy to sew, requiring less material compared to traditional metal strip splicing, thus reducing splicing and fixing costs.

The utility model discloses a circumcision ribbon, which solves the problems in the prior art that cold light generated by a cold light source cannot irradiate a prepuce cavity and the wandering amplitude of a prepuce is large after the prepuce is fixed, and comprises an absorbable suture sewn on a prepuce wound and an inner ring sleeved on a coronary sulcus of a penis, the irradiation assembly is arranged in the inner ring, connected with the cold light source and used for irradiating the foreskin cavity, the fixing binding belt is arranged on the inner ring in a sleeving mode and used for fixing the circumcision part by a circle, and the elastic line is arranged on the inner ring in a sleeving mode and used for stopping bleeding of the circumcision part. The irradiation assembly transmits cold light emitted by the cold light source into the inner ring so as to irradiate the interior of a prepuce cavity, the prepuce is fixed to the inner ring through the elastic line or the fixing binding belt, displacement of the prepuce in the circumcision operation can be avoided, the elastic line can stop bleeding of a prepuce wound, and the prepuce is prevented from being damaged. Therefore, the circumcision wound can be sutured and fixed conveniently, and the operation efficiency is improved.

The utility model discloses a spinal plate resetting and fixing system, which particularly relates to the technical field of medical instruments and comprises a spinal plate resetting and fixing plate, spinal plate resetting and fixing screws and a mounting instrument for grabbing the spinal plate resetting and fixing screws. At least three first mounting holes and at least two second mounting holes are formed in the spine plate reset fixing plate, the spine plate reset fixing screws are mounted in the first mounting holes and the second mounting holes, and adjusting sliding grooves used for sliding of the spine plate reset fixing screws are formed among the at least three first mounting holes. And a double-nut mechanism is arranged at the head of the spinal plate reduction fixing screw. According to the spinal plate reposition fixing device, the spinal plate reposition fixing plate, the spinal plate reposition fixing screw and the installation instrument are arranged, so that a spinal plate reposition fixing system in intraspinal tumor resection is improved, especially for multi-section intraspinal tumors, a vertebral plate and a spine are fixed in vertebral plate spinous process complex reposition after tumor resection, and anatomical reposition is achieved.

The utility model provides a kind of digestive endoscope snare device, belong to medical instrument technical field.It solves when facing under endoscope huge wound, need through snare device auxiliary wound closure.But because the current snare silk is the annular structure of whole one, after auxiliary closure wound, it is difficult to take down snare silk from titanium clip, lead to auxiliary wound closure is not smooth problem.A kind of digestive endoscope snare device, including snare and two identical snare silk, one end of two snare silk is connected together by fuse ball, the other end of two snare silk is arranged in snare, and closed area is formed between two snare silk.It has the advantage that after auxiliary wound closure, snare silk can be taken down completely from inside titanium clip, realize the auxiliary closure of wound.

The invention discloses a vaginal retractor device and a vaginal tension method for cervical conization annular suture, and relates to the technical field of medical instruments. According to the technical key points, the device comprises a supporting mechanism, a connecting assembly installed on the supporting mechanism, a lower pulling hook body longitudinally installed on the connecting assembly, a limiting mechanism transversely installed on the connecting assembly and a pair of side pulling assemblies symmetrically installed at the upper end of the limiting mechanism, and the side pulling assemblies and the lower pulling hook body are located on the same vertical plane; the lower drag hook body is located below the symmetrical center line of the side pull assembly, and the drag hook ends of the side pull assembly and the lower drag hook body are both arranged backwards; the device is good in vagina stretching effect, and the cervix uteri of a patient can be exposed; the vagina can be stretched and supported in different directions by utilizing the inward retractor ends of the side pulling assembly and the lower retractor body, and the side pulling assembly and the lower retractor body can be limited and fixed and kept in a stretched and supported state by utilizing the connecting assembly to be matched with the limiting mechanism, so that the surgical suture of related personnel is facilitated.

The sheet pressing device comprises a rack arranged on the front side of a table top of a sewing machine, a transverse shaft is arranged on the rack, a movable seat is movably arranged on the transverse shaft, an inclined frame is arranged on the outer side of the movable seat, a pressing strip is hinged to the end of the inclined frame, and the pressing strip is provided with two sections of turns. A vertically downward electric push rod is arranged on the moving seat, the end part of a telescopic rod of the electric push rod is hinged with one end of a pressing strip, and the other end of the pressing strip is pressed on the fabric; the needle end of the sewing machine is positioned on one side of the depression bar. The utility model has the following advantages and effects: through the tabletting device, a worker can conveniently align garment piece sewing, so that the problem that the sewing quality is reduced is reduced.

The utility model relates to the technical field of hosiery sewing machines, and discloses a special combined needle plate for a hosiery sewing machine for producing and processing hosiery, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned at the outer end of the main body mechanism, the main body mechanism comprises a needle plate body, a base and a clamping groove, the base is fixedly mounted at the lower end of the needle plate body, and the clamping groove is positioned at the lower end of the needle plate body. And the clamping groove is fixedly arranged at the inner end of the needle plate body. According to the combined needle plate special for the sock sewing machine for sock production and processing, through installation of a main body mechanism and movable connection of a telescopic shaft and a fixed shaft, a user moves an extrusion plate backwards, the telescopic shaft extrudes the inner end of the fixed shaft, a damping spring shrinks, and a clamping groove is enlarged, so that the combined needle plate can be conveniently installed on different types of sock sewing machines; when a certain sewing needle on the needle plate body is damaged, a user can directly detach the first magnetic attraction piece at the rear end of the sewing needle from the second magnetic attraction groove and replace the sewing needle with a new sewing needle, and the flexibility of the needle plate is effectively improved.

The utility model provides a facial micro-finishing skin pulling tool, which relates to the field of facial micro-finishing and comprises a protective tube, support plates are fixedly connected to two sides of the upper end of the surface of the protective tube, a movable rod is movably connected to the upper end of an inner cavity of the protective tube, and a pressing sleeve is sleeved on the top of the movable rod; fingers can be limited through the lantern ring, the supporting plate can support the fingers, so that a person can exert force conveniently, the pressing sleeve can drive the movable rod and the movable disc to move downwards by pressing the pressing sleeve, the movable disc drives the spring and the connecting rod to move downwards, the spring is compressed to deform, meanwhile, the connecting rod drives the suture needle to move downwards, and the suture needle is fixed. The suture needle is exposed outside and can penetrate through a wound, the suture needle can be driven to reset through the reset force of the spring, so that the suture needle can be matched with the suture line to suture the wound, a clenching state does not need to be kept all the time in the whole process, suture is conducted only in a pressing mode, and convenience is achieved.

The present invention provides a VATS compression hemostat, comprising: a compression device, a hollow connecting end is arranged on the top, and a plurality of drainage channels are extended from the connecting end toward the side wall and the bottom of the compression device; a hollow support rod, one end of which is screwed to the connecting end, and the other end is connected to an aspirator; a pop-up compression piece, which can be slidably arranged in a side wall of the compression device; and a controller, which is arranged on the side wall of the support rod away from one end of the compression device, and is used to control the pop-up length of the pop-up compression piece; a spring is abutted on one side of the pop-up compression piece, and a pull wire is connected to the pop-up compression piece, which passes through the spring and is connected to the controller. The use of the VATS compression hemostat can avoid vascular damage during VATS and turn to thoracotomy, and can quickly find bleeding points and treat them, greatly reducing the risk of hemorrhagic shock, while not increasing the rapid recovery factor.

According to the high-seepage-proofing artificial blood vessel and the preparation method thereof, the artificial blood vessel is designed by simulating a three-layer structure of an inner membrane, a middle membrane and an outer membrane of a human body blood vessel, the inner layer is a collagen coating, an inner layer functional area of the artificial blood vessel is formed, and the collagen coating is compact and smooth and has an excellent seepage-proofing effect; the middle layer is a loose fabric layer of a satin weave or twill structure, collagen of the inner layer easily permeates into the middle fabric layer, fixing points are formed to increase the binding force between the collagen coating and the middle fabric of the artificial blood vessel, and the integrity of the whole artificial blood vessel is ensured. Meanwhile, the middle fabric layer and the collagen jointly form a middle functional area of the artificial blood vessel; the outer layer is a compact fabric layer with a plain structure, so that collagen in the inner layer is difficult to enter the plain structure, and the outer fabric layer is used as an outer functional area of the artificial blood vessel.

The utility model discloses a multifunctional delivery metering pad which comprises a first-layer structure, a second-layer structure and a third-layer structure. The first-layer structure is used for being laid under the buttocks of a puerpera and collecting and metering amniotic fluid flowing out during delivery of the puerpera. The second-layer structure is fixed on the first-layer structure and is used for covering the area near the delivery part of the puerpera and collecting and measuring the vaginal bleeding amount of the puerpera after delivery of the baby; and the storage structure is fixed on the second-layer structure and is used for storing gauze required in the delivery process of the puerpera. According to the multifunctional delivery metering pad, the comfort degree of a puerpera is improved, the bleeding amount and amniotic fluid amount can be accurately metered in real time, metering is convenient, postpartum bleeding early warning is convenient, the sterile suture range is guaranteed, anus shielding is convenient, pollution and wound infection are reduced, delivery towels and pad towels which are repeatedly disinfected and used can be abandoned, and gauze can be conveniently collected and counted.

This invention relates to a myocardial repair patch based on multi-material printing, its preparation, and its application, belonging to the field of bio-3D printing and regenerative medicine technology. The invention uses PLCL and GelMA hydrogel loaded with active cardiomyocytes as bio-inks, and introduces gelatin gel as a heat buffer material. An orthogonal network structure is constructed using multi-material bio-3D printing technology to prepare a myocardial repair patch with excellent dynamic adaptability to the myocardial interface and good biocompatibility. The myocardial injury repair patch prepared by this invention achieves a structure-function integrated design through the synergistic effect of the three materials, significantly overcoming the limitations of single materials in terms of mechanical properties, biological function, or thermal compatibility. The mechanical properties of the myocardial injury repair patch prepared by this invention can precisely match those of natural myocardium, while possessing high cell activity, effectively inhibiting fibrosis, improving myocardial function, and achieving true active repair. Furthermore, the process conditions are controllable, demonstrating good translational potential.

The utility model discloses a fishtail skirt seam splicing structure which comprises a first fishtail skirt edge cloth strip and a thread hole, a folding cloth strip is arranged at the right end of the first fishtail skirt edge cloth strip, a second fishtail skirt edge cloth strip is arranged on the front side of the folding cloth strip, a first sewing thread groove is formed in the surface of the second fishtail skirt edge cloth strip, and a second sewing thread groove is formed in the surface of the second sewing thread groove. The suture hole is formed in the first suture line groove, and a first suture line penetrates through the interior of the suture hole. According to the fishtail skirt abutted seam structure, the attaching adhesive tape and the positioning adhesive tape are both soluble glue, when the attaching adhesive tape and the positioning adhesive tape are used for adhering clothes, the adhering effect can be provided, it is ensured that all parts of the first fishtail skirt edge cloth strip and all parts of the second fishtail skirt edge cloth strip are firmly combined, and the clothes are not prone to falling off. The first fishtail skirt cloth strip and the second fishtail skirt cloth strip are not prone to thread loosening or thread opening in the using process, the service life of the first fishtail skirt cloth strip and the service life of the second fishtail skirt cloth strip are prolonged, it can be ensured that different materials are tightly bonded through the high-quality attaching adhesive tape and the positioning adhesive tape, and the tear resistance and the wear resistance of the fabric are improved.

The utility model provides a livestock wound stitching instrument, which is applied to the veterinary technical field and comprises a pair of fixing components, the pair of fixing components are fixedly connected through a pair of liquid guide plates, an operation area is formed between the fixing components and the liquid guide plates, each fixing component comprises a pair of fixing flaps, the opposite ends of the fixing flaps are respectively provided with a slide way, and the slide ways are arranged on the fixing flaps. When a veterinarian extrudes and closes a livestock wound, firstly, the two fixing petals are pulled open and placed on intact skin behind the two sides of the wound in parallel, rubber gaskets with high friction force are arranged at the bottoms of the fixing petals, and the fixing petals are connected with the connecting rods in a sliding mode. The skin and the fixing petals are stably connected, the fixing petals on the two sides are pulled through the cooperation of the connecting rod and the traction spring, and therefore the skin on the two sides of the wound converges towards the wound.