328 results about "Anastomosis" patented technology

The invention discloses a mouse spinal cord flexible electrode and a stimulation parameter optimization method, and relates to the technical field of parameter optimization. The mouse spinal cord flexible electrode comprises a soluble insertion layer, a gradient substrate layer, spinal cord anastomosis ribs, a conductive snakelike net, a hemispherical touch dot matrix, a microfluidic layer, an optical waveguide layer and a top packaging layer; the soluble insertion layer is photo-crosslinked PEG-DMA with the thickness of 5-25 m, the Young modulus is kept within the range of 0.8-1.5 GPa before implantation, and the soluble insertion layer is hydrolyzed in cerebrospinal fluid within 0.5-3 hours after implantation and completely falls off; the spinal cord anastomosis rib comprises an expandable S-shaped folding structure arranged on the upper surface of the gradient substrate layer, the distance between every two adjacent ribs ranges from 80 m to 200 m, the height of the folded state is not larger than 15 m, the height of the unfolded state ranges from 15 m to 40 m, and the spinal cord anastomosis rib is used for forming a cerebro-spinalfluid bypass groove extending in the longitudinal direction of the spinal cord on the surface of the dura mater. According to the invention, the positioning precision, safety and long-term efficiency of mouse spinal cord electrical stimulation can be effectively improved.

The invention discloses a self-breaking outer drainage tube, and relates to the technical field of medical instruments, the self-breaking outer drainage tube comprises a tube body, and the tube body comprises a drainage part, a breaking part, a leading-out part and a puncture part; the drainage part and the fracture part are both made of degradable materials; the hole wall thickness of the circulation hole at the fracture part is smaller than the hole wall thickness of the circulation hole at the drainage part; during surgical operation, the degradable inner drainage part is placed in the pancreatic duct, the fracture part crosses the anastomotic stoma by 7-8 cm and crosses the biliary-intestinal anastomotic stoma, and the leading-out part walks in the enteric cavity to a proper position, penetrates out of the intestinal wall and is led out of the body through the abdominal wall. Cutting the puncture part to expose the outlet of the circulation hole, and discharging the body fluid through the circulation hole; after a certain period of time after the operation, the fracture part is automatically fractured under the action of pancreatic juice, the leading-out part is pulled out, the degradable drainage part continues to be degraded in the body and maintains the drainage function, and finally the drainage part is absorbed by the body or discharged out of the body without being taken out through the operation.

The invention discloses a self-adaptive control system based on a cutting anastomat, and relates to the technical field of medical instrument control, and the system comprises an intelligent hardware module which is used for analyzing a motion control instruction based on an MCU (Microprogrammed Control Unit), receiving a PWM (Pulse Width Modulation) signal by a DC motor driver, and starting a tool bit to advance according to a preset acceleration curve; the TACS module analyzes the tissue state based on sensor data and dynamically adjusts the rotating speed and cutting force of a motor; and the man-machine interaction visualization module is used for carrying out visual and clear graphical and digital presentation, including electric quantity, anastomosis pressure and cutting progress, on the basis of an electronic display screen. The MCU serves as the core, the tool bit is controlled to advance according to the preset curve through PWM signals, it is ensured that the cutting action is accurate and stable, the equipment loss and the tissue damage risk are reduced, the TACS module analyzes the tissue state in real time and dynamically adjusts the motor rotating speed and the cutting force through a sensor, the cutting effect can be ensured for tissue with different hardness and thickness, and the cutting efficiency is improved. Healthy tissues can be protected, and the operation safety and efficiency are improved.

A magnetic compression anastomosis device comprises a first multipiece internal vertebrae support structure including a first set of magnets attached to an outward-facing side of the first multipiece internal vertebrae support structure; and a second multipiece internal vertebrae support structure including a second set of magnets attached to an outward-facing side of the second multipiece internal vertebrae support structure, wherein the first and second multipiece internal vertebrae support structures are attached together in a sandwich configuration with an inward-facing side of the first multipiece internal vertebrae support structure facing an inward-facing side of the second multipiece internal vertebrae support structure and the magnets on the outward-facing sides of the magnetic compression anastomosis device.

The invention discloses a multi-mode physical sign restraint strap remote monitoring system, and relates to the technical field of medical monitoring, the system is composed of a plurality of functional modules, and the system comprises a data acquisition module for acquiring monitoring data of a patient in real time, the monitoring data comprising physical sign data and medication data of the patient; the time sequence association construction module is used for preprocessing the monitoring data to obtain an effective physical sign data subset, performing dynamic time warping on the effective physical sign data subset based on a DTW algorithm to obtain an optimal time sequence anastomosis path, performing parameter estimation on the optimal time sequence anastomosis path by utilizing a linear regression model, and constructing a time sequence association trend of medicine-physical sign response; the intelligent analysis module is used for marking key nodes based on the time sequence correlation trend of the drug-physical sign response and performing multi-dimensional evaluation on the drug effect to obtain a drug effect evaluation value; and the drug use decision module is used for respectively carrying out transverse comparison and longitudinal analysis based on the drug effect evaluation value.

The present disclosure discloses a staple cartridge, a staple cartridge assembly, and an anastomosis device. A feeding groove of a staple cartridge provided in the present disclosure is arranged to extend in the first predetermined direction. Multiple staple slot groups are distributed on both sides of the feeding groove along the slot-width direction of the feeding groove, and the number of staple slot groups on both sides of the feeding groove is different.

The utility model relates to a large area contact type thread type degradable magnesium alloy aortic blood vessel anastomat, including the conical inner ring, conical outer ring and sleeve outer ring that set gradually from inside to outside, be provided with blood vessel clamping space between the conical inner ring and conical outer ring, it is the thread cooperation between conical outer ring and sleeve outer ring, adjust the size of blood vessel clamping space through the rotation sleeve outer ring, sleeve outer ring. The utility model simple structure, reasonable in design, convenient to use, adjust the size of blood vessel clamping space through the rotation conical outer ring and sleeve outer ring to fixed blood vessel, realize blood vessel anastomosis fast, avoid the mode of the traditional everted type through end face combination simultaneously, greatly increase the contact area between blood vessel and prevent the occurrence of blood leakage.

The invention relates to a medical first-aid instrument. The efficient bleeding stopping suite for the broken limb comprises an anastomosis cylinder and connecting assemblies arranged at the two ends of the anastomosis cylinder and used for being combined with the broken end. The center of the anastomosis cylinder is provided with a funnel-shaped center cone which is gradually shrunk towards the telecentric end, and the telecentric end of the center cone and the anastomosis cylinder are coaxially provided with a center cylinder; the central cylinder is communicated with the central cone, and a control valve is arranged on the central cylinder; an anastomosis needle used for being inserted into a broken limb artery is further arranged at the distal end of the center cylinder. Targeted rapid hemostasis can be effectively achieved on the whole, stable temporary blood supply is efficiently constructed, and the replanting survival rate of the fractured limbs is remarkably improved.

The utility model provides a tubular anastomat, and relates to the technical field of medical instruments. The tubular anastomat comprises an anastomosis assembly, an osculating assembly and a connecting assembly, a first anastomosis piece in the anastomosis assembly is arranged on the inner side of a second anastomosis piece, a leakage-proof barrel is arranged on the inner side of the first anastomosis piece, and the near end of the leakage-proof barrel extends out of the near end of the first anastomosis piece; a first osculating piece in the osculating assembly is arranged on the inner side of a second osculating piece, and part of the connecting assembly can be limited to the osculating assembly. The osculating assembly is pushed in the direction close to the anastomosis assembly, so that the osculating assembly is arranged at the near end of the leakage-proof cylinder in a sleeving manner, and the other part of the connecting assembly is connected to the anastomosis assembly in a limiting manner, so that the first intestinal tract and the second intestinal tract are anastomosed between the anastomosis assembly and the osculating assembly. According to the tubular anastomat, the anastomosis effect can be improved, and the probability that the first intestinal tract and the second intestinal tract are broken due to separation between the anastomosis assembly and the osculating assembly is reduced; meanwhile, the leakage-proof effect is improved, and the risk of anastomotic stoma leakage is reduced.

This utility model discloses an anti-accidental activation structure for a stapler, including a stapler body and a cutting blade disposed within the stapler body; a protective lock is rotatably mounted at the tail end of the stapler body; a limiting mechanism is provided on the inner side of the protective lock to limit the tail end of the cutting blade; an anti-rotation mechanism is provided on the protective lock to lock the stapler body; and a reset mechanism is provided between the protective lock and the stapler body for resetting the protective lock after accidental activation. The protective lock, limiting mechanism, anti-rotation mechanism, and reset mechanism of this utility model work together to form a three-layer anti-accidental activation protection; the limiting mechanism directly locks the cutting blade position to prevent accidental activation; the anti-rotation mechanism ensures the protective lock is stably locked; and the reset mechanism automatically restores the protective lock to its initial position after accidental activation, thereby avoiding damage to the stapler due to misalignment of the protective structure after docking with the instrument.

The invention discloses an intestinal microneedle anastomosis stent with an antibacterial function and a preparation method and application thereof, which can effectively and physically isolate an anastomotic stoma from intestinal contents and provide a relatively clean local environment for healing of the anastomotic stoma. The microneedle anastomotic stent is fixed at the anastomotic stoma, so that the tension at the anastomotic stoma can be further reduced, and the occurrence of anastomotic stoma leakage caused by overlarge tension is avoided; the microneedle layer on the surface of the stent can realize in-situ long-acting slow release of berberine hydrochloride (BBH) on the superficial layer of an anastomotic stoma, so that the drug utilization rate of the BBH is improved, the initial inflammation of the anastomotic stoma can be effectively reduced, and the anastomotic stoma can be regulated and controlled to be better healed. Animal experiment results prove that the implantation of the microneedle anastomosis stent can effectively reduce inflammatory cell infiltration of local tissues, reduce anastomotic stoma arrangement and regulate the anastomotic stoma to heal smoothly.

The present invention relates to the technical field of anastomosis devices, and in particular to a swinging mechanism for anastomosis devices and an anastomosis device thereof, the swinging mechanism comprising an actuator seat, an extension tube, a push rod and a swinging seat; the rear end of the swinging seat has a left groove and a right groove, the front end end of the left push rod has a left hook, and the front end end of the right push rod has a right hook; the present invention utilizes the left hook and the right hook to cooperate with the left groove and the right groove respectively, on the one hand, so that during the swinging of the actuator seat from the center position to the left extreme position or the right extreme position, only a single push rod applies force to the actuator seat, so as to prevent the extension tube from being bent and deformed due to excessive force on the actuator seat at the left extreme position and the right extreme position, thereby improving the operation accuracy during surgery; on the other hand, the two push rods always keep in contact with the swinging seat, so that the actuator seat will be constrained by the two push rods during the swinging process between the left extreme position and the right extreme position, thereby ensuring the stability of the actuator seat during the rotation process.

The present disclosure relates to a device assembly and a method for treating heart failure by normalizing elevated blood pressure in the left atrium of a heart of a mammal. Disclosed herein is a transcatheter interatrial septum excision device assembly configured to create a sized interatrial aperture between the right and left atria of a heart for the relief of elevated left atrial pressure. The device assembly comprises a delivery catheter, a tissue stabilizer attached to a first catheter having a central lumen and a penetrating tip that permits passage of a guidewire, and a cutter attached to a second catheter having a central lumen that permits passage of the first catheter. Alternative configurations comprise a (third) catheter having a central lumen that permits passage of the aforementioned components to and from the right atrium, a tissue retention mechanism and an optional coaxial alignment mechanism.

The present application relates to a kind of anastomosis equipment.The anastomosis equipment includes repair assembly and anastomat;Repair assembly includes at least one patch, various the patch is respectively used for different operation;Anastomat includes shaft assembly, anvil and nail bin, anvil and nail bin are connected to shaft assembly, anvil and nail bin can be relatively closed, various patch is used to install in anvil or nail bin, anvil and nail bin are configured to operate to anastomosis position, and patch is applied to corresponding anastomosis to achieve occlusion and reinforcement by operation.This application at least one patch, so as to cooperate with anvil and nail bin, so that various patch is adhered to corresponding anastomosis under its corresponding operation, so as to reduce the proportion of stomal fistula and bleeding at incision, improve the reliability and adaptability of anastomosis equipment.

1. Name of the product in this design: Labia Fixation Base (for Labia Cutting Anastomosis). 2. Purpose of this design: It belongs to medical devices and is used to fix the labia when cutting and suturing them. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention relates to a complex surgical device for carrying out an anastomosis in the intestine including:a— a protective device (5) comprising an anchor element consisting of a stent (1) and a flexible outer sheath (2), andb— an introducer (10) comprising at least a first deformable guide tube (12),characterized in that the downstream end of said outer sheath is connected to said first guide tube (12) or to a first connecting piece (11), said outer sheath (2) being folded inside said first deformable guide tube (12), said stent being held in radial compression inside said first deformable guide tube.

Provided is an anastomosis set for anastomosing a first anastomotic target portion of a first tubular organ and a second anastomotic target portion of a second tubular organ. The anastomosis set includes: a first anastomosis device connected to the first anastomotic target portion and having a first extension through-hole penetrable by the first tubular organ; and a second anastomosis device connected to the second anastomotic target portion and having a second extension through-hole penetrable by the second tubular organ. The first anastomosis device is connected to the second anastomosis device, allowing the first anastomotic target portion and the second anastomotic target portion to be anastomosed to each other.

1. Name of the product in this design: Anastomosis device (inserted fully endocavitary electrically powered tubular type - straight). 2. Application of this design: for laparoscopic anastomosis of esophagus and jejunum, intestine to intestine, or thoracoscopic anastomosis of esophagus and jejunum or esophagus and stomach within the thoracic cavity. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: Part A is made of transparent material.

The utility model provides a multi-degree-of-freedom surgical instrument replacing device, the multi-degree-of-freedom surgical instrument replacing device is provided with a guide wire driving unit and a surgical instrument unit, the guide wire driving unit is provided with a driven unit, and the surgical instrument unit is provided with a driving unit; the driving assembly is provided with a driving pull rod, a driving pull rod sleeve, a connecting rod locking spring and a pull rod locking screw cap. The driven assembly is provided with a driven pull rod, a driven pull rod sleeve, a pull rod reset spring and a pull rod reset screw cap. The multi-degree-of-freedom surgical instrument replacement device is suitable for multi-degree-of-freedom surgical instruments with different execution tail ends, can execute functions including but not limited to clamping, excision, cutting, suturing, anastomosis and the like, and can realize quick disassembly, replacement and installation of a surgical instrument unit on a handheld control device or a machine driving unit; the surgical instrument units at different execution tail ends can be replaced to meet different surgical operation requirements, and the surgical instrument units can be conveniently disinfected, sterilized and reused.

The application relates to the technical field of indwelling needles, and discloses an indwining needle capable of preventing blood backflow, which comprises a venous tube, a filling pipeline fixedly connected to the top of the venous tube, a hose fixedly connected to the outside of the filling pipeline, a mixed liquid tube fixedly connected to one end of the hose, a transfusion tube fixedly connected to one end of the mixed liquid tube, a heparin cap fixedly connected to the other end of the mixed liquid tube, a drainage ball movably connected between the filling pipeline and the hose, and second anastomosis walls for anastomosing the drainage ball formed by the concave shapes of the two sides of the replacement ring, a drainage hole arranged on the drainage ball, the filling pipeline communicated with the hose through the drainage hole, and a three-labium sealing plate movably connected to the inside of the filling pipeline. The indwining needle capable of preventing blood backflow is characterized in that blood in the hose flows into the inside of the filling pipeline, and when the liquid level in the inside of the filling pipeline drops, the three-labium sealing plate slowly drops to re-contact the drainage ball, so that the channel between the filling pipeline and the hose is closed, thereby preventing the possibility of blood backflow in the pipeline.

The utility model discloses an adjustable selfie stick, which comprises a handheld part, a supporting rod and a clamping part, a supporting body is arranged at the center of the clamping part, and two ends of the supporting rod are respectively connected with the handheld part and the supporting body, and is characterized in that the supporting body is connected with the supporting rod through an adjusting assembly, the adjusting assembly comprises a first ring body and a second ring body, a first magnet and a second magnet are bonded in the first ring body and the second ring body respectively, protruding points are evenly distributed at the end of the second ring body, a matching groove is formed in the first ring body, the adjusting assembly enables the supporting body and the supporting rod to be tightly connected through attraction force of the magnets, looseness is effectively reduced, the abutting table and the abutting groove are matched, displacement of components is limited, and even if the components are impacted by external force, the components can not be damaged. And the two are not easy to separate or misplace, thereby protecting the whole shooting process.

A system includes a clip, a member and a control member. The clip includes a barrel member defines a cavity therein and clip arms. Distal ends of the arms are connected to one another and slidably received within the cavity to be moved between open and closed configurations. The member includes a lumen extending longitudinally therethrough. A distal end of the member in contact with the distal ends of the arms to hold the arms distally against the barrel member. The control member is slidably received within the lumen so that a distal end of the control member extends distally past the distal end of the member and the distal ends of the arms to be connected to the distal end of the barrel member. A longitudinal movement of the control member relative to the longitudinal member moves the arms between the open and closed configurations.

The present invention relates to a complex surgical device for carrying out an anastomosis in the intestine including:a—a protective device (5) comprising an anchor element consisting of a stent (1) and a flexible outer sheath (2), andb—an introducer (10) comprising at least a first deformable guide tube (12),characterized in that the downstream end of said outer sheath is connected to said first guide tube (12) or to a first connecting piece (11), said outer sheath (2) being folded inside said first deformable guide tube (12), said stent being held in radial compression inside said first deformable guide tube.

The application discloses an electric linear cutting anastomat, and relates to the field of anastomosers, which comprises an operating part and a head part, the operating part can make the head part rotate, the head part comprises a nail bin and a nail abutting seat, the nail bin and the nail abutting seat can clamp human tissues, and a plurality of suture nails are arranged in the nail bin; a nail pushing assembly is arranged in the nail bin; the nail pushing assembly can move in the nail bin, a plurality of shielding assemblies are arranged at positions corresponding to the suture nails of the nail bin, the shielding assembly comprises a trigger rod and a nail pushing block; after the nail bin and the nail abutting seat clamp human tissues, the human tissues will move the corresponding trigger rod to the direction of the nail bin; the trigger rod moves the nail pushing block to the position of the suture nail. The suture nails of the part of the nail bin and the nail abutting seat which are not clamped by human tissues cannot be fired, the suture nails in the part of the nail bin which are not clamped by human tissues are prevented from being pushed out, the situation that the suture nails are not sutured on human tissues and fall into the human cavity is avoided, and therefore the anastomosis of the anastomat on human tissues is safer.

The anastomosis assembly comprises a nail abutting seat, a traction tube and a traction line, the nail abutting seat comprises a nail abutting seat top cover, a guide shaft and an auxiliary puncture head which are connected in sequence, the traction tube is connected to the nail abutting seat top cover, and the traction line is connected to the auxiliary puncture head; the anastomat comprises an anastomat body, a nail bin and a puncture needle, the anastomat body is provided with an adjusting device used for adjusting the position of the puncture needle and a percussion device used for pushing out suturing nails in the nail bin, the anastomat further comprises the anastomosis assembly, the auxiliary puncture head is detachably connected to the guide shaft, and the puncture needle is connected with the guide shaft where the auxiliary puncture head is detached in a matched mode. And a top cover of the nail propping seat is matched with the nail bin. According to the utility model, the nail propping seat can be smoothly and accurately dragged to an anastomosis part, the direction is not easy to deviate in the traction process, the digestive tract is not easy to damage, the operation is simple, convenient and quick, the time and labor are saved, the anastomosis effect is good, and the suture efficiency of a doctor in a surgical operation is further improved.

The invention discloses a magnetic anastomosis device for tissue clipping under a digestive endoscope, and belongs to the technical field of medical instruments. The device comprises a digestive endoscope, tissue grasping forceps, a mounting head, a pressing rod, a first magnet and a second magnet. The installation head is installed at the head end of the digestive endoscope, a sliding groove and magnet installation grooves in the two sides are formed in the installation head, and the first magnet and the second magnet are arranged in the magnet installation grooves respectively. The pressing rod is arranged on the tissue grasping forceps in a sleeving mode and located in the sliding groove. A magnet control structure is arranged in an inner cavity of the mounting head and comprises a baffle, a connecting stand column, a connecting rod, a pressing column and a spring. The baffle is a movable groove wall on one side of the magnet mounting groove and is connected with the connecting rod through the connecting stand column, and when the pressing rod retreats along with the tissue grasping forceps and extrudes the pressing column, the baffle is driven to move downwards, limiting on the magnets is relieved, and the two magnets attract and clamp the tissue under the action of magnetic force. According to the invention, the motion trail of the magnet can be accurately guided, the butt joint overlapping area of the magnet is large, the clamping effect is reliable, and the operation controllability is strong.

The present disclosure provides a releasing assembly for an anastomosis clamp. The releasing assembly is configured to be used in cooperation with an endoscope and to release the anastomosis clamp by use of the endoscope to clamp a target tissue. The releasing assembly includes a transparent loading cap and a push rod. The anastomosis clamp is configured to be sleeved on a front end of the transparent loading cap, the transparent loading cap is penetrated therethrough along a central axis in a longitudinal direction thereof, the transparent loading cap is provided with a supporting part, the supporting part is provided with a push hole penetrating therethrough in an axial direction, the push rod is configured to pass through the push hole and to move in the axial direction of the push hole to allow one end of the push rod to abut against a rear end of the anastomosis clamp.

The invention discloses an anastomosis instrument for connecting multiple lymphatic vessels and blood vessels. The anastomosis instrument comprises a blood vessel connecting piece and a plurality of lymphatic connecting tubes. According to the integrated anastomosis instrument, the multiple lymphatic vessels can be connected to the lymphatic connecting tubes respectively through the arrangement of the integrated anastomosis instrument with the multiple lymphatic connecting tubes, and the lymphatic vessels are finally guided into the same vein blood vessel through the through holes; therefore, an efficient connection mode of multiple lymphatic vessels and a single blood vessel is realized, the surgical operation is greatly simplified, the surgical time is shortened, the surgical difficulty is greatly reduced, and the risks of postoperative bleeding, inflammation and vascular stenosis are reduced; in addition, due to the establishment of a plurality of drainage channels, the total drainage efficiency of lymph is effectively improved, and the device is more suitable for clinical conditions with large lymphatic load.