52 results about "Anastomosis" patented technology

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.

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 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 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.

1. The name of the design product: skin anastomat. 2. The use of the design product: for anastomosis between postoperative wounds. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The application provides an anastomosis device for blood vessel surgery and belongs to the technical field of medical instruments. The anastomosis device comprises a mounting cylinder, a mounting column arranged in the mounting cylinder, a connecting cylinder fixedly connected to the rear end of the mounting column, a spring sleeved on the connecting cylinder, one end of the spring abutting against the rear end of the mounting column, the other end of the spring abutting against the inner rear wall of the mounting cylinder, a moving column fixedly connected between the mounting column and the connecting cylinder, a holding mechanism arranged at the rear end of the connecting cylinder and used for fixing the moving column, a hand-held mechanism arranged at the bottom of the mounting cylinder and used for driving the connecting cylinder to move, an installation cover fixedly connected to the outer circumferential side wall of the front end of the mounting cylinder, a transmission sleeve arranged in the installation cover, and a transposition mechanism arranged on the installation cover and used for driving the transmission sleeve to rotate. The application can realize synchronous expansion of blood vessels in anastomosis rings, fast fixation of the broken ends of the blood vessels and the needle bodies of the anastomosis rings, and significant shortening of the operation time.

This invention relates to the field of medical devices, specifically to a non-fastener-based patch attachment method and device. The patch is attached to at least one anastomosis arm of a stapler via a non-penetrating connector, allowing the patch to be non-penetratingly connected to the anastomosis arm. The anastomosis arm and patch achieve a mechanical self-locking connection and engagement without traditional fasteners through low normal force, normal support force, shear resistance, and / or friction, significantly reducing the risk of patch tearing associated with traditional fasteners. When the stapler is not fired, the constraint effect of this non-penetrating connector on the patch stably fixes the patch to the anastomosis arm, ensuring no relative displacement. Simultaneously, it avoids damage to surrounding tissue caused by the connector penetrating the patch during the stapler's delivery to the target location.

This invention relates to an anastomosis device for gingival surgical incisions, comprising a main body structure, a gripping structure, several staple structures, a staple delivery structure, two power structures, and a staple separation structure. Its advantages lie in that, by rotating the gripping structure to the main body structure, the gripping structure drives the two power structures to move along the length of the main body structure, pressing the staple separation structure towards the staple structure, thus separating the staples; simultaneously, the power structures push the separated staple structures, causing them to move along the staple delivery structure. The staple delivery structure clamps both sides of the surgical incision and deforms the staple structures, separating them from the staple delivery structure, thereby compressing both sides of the surgical incision and achieving anastomosis. This eliminates the need for staples to puncture the gums, reducing trauma, and is simple and convenient to operate. It allows for rapid suturing of surgical incisions, and the protruding staple delivery structure allows for anastomosis of gums deep within the oral cavity.

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.

This utility model relates to the field of medical device technology, specifically to a laparoscopic anastomosis cutting device with an anti-slip design. The utility model includes a handle, a rotating frame mounted on one side of the handle, an operating frame fixedly mounted on one side of the rotating frame, a connecting tube fixedly mounted on one side of the operating frame, a movable frame snapped onto one side of the connecting tube, a cutting device fixedly mounted on one side of the movable frame, an angle adjustment plate mounted on the surface of the operating frame, an operating handle movably mounted on the surface of the handle, anti-slip nets fixedly connected to both sides of the handle, and three grooves with decreasing apertures on the surface of the operating handle. This solves the problem that the handle and operating lever held by the surgeon are prone to slippage during prolonged surgery or when hands are sweaty, reducing operational stability and safety, and increasing surgical risks.

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.

This application provides an anastomosis reinforcement patch applicable to a tubular stapler, comprising: a patch substrate, the patch substrate including: a body portion covering the staple cartridge end face of the tubular stapler; a connecting portion located at the edge of the body portion, configured to define the relative position of the body portion and the staple cartridge of the tubular stapler; a patch protective membrane, movably connected to the connecting portion via sutures, wherein an annular limiting portion is provided at the end of the protective membrane away from the connecting portion, the annular limiting portion enabling the membrane material to be bound into a regular circle, facilitating smooth insertion and precise positioning of the staple cartridge into the cavity, improving operational convenience, and configured to enhance the plasticity of the patch protective membrane to facilitate insertion of the staple cartridge into the cavity; detachable sutures can pull the protective membrane completely out of the cavity, avoiding residue that could cause infection, ensuring postoperative safety, reducing patient trauma and foreign body reaction, and improving clinical surgical outcomes and patient treatment experience.

A shunting system comprises an endovascular shunt device, a shunt delivery catheter comprising a lumen configured for housing the endovascular shunt device, a penetrating element configured for piercing or penetrating through a wall of a vessel into an extravascular space to create an anastomosis within the wall of the vessel, and an atraumatic distal protective element configured for deflecting a critical anatomical structure (CAS) residing within the extravascular space away from the penetrating element.

A system for delivering an anastomosis ring is described. The system comprises an access sheath comprising a lumen, a delivery device to deliver a magnetic ring-shaped implant along the lumen of the access sheath and through a hole in a body lumen, a magnetic element (e.g. a securing magnet), and a securing magnet holder to deliver the securing magnet along the lumen of the access sheath. The securing magnet is detachably attachable to the securing magnet holder and configured to magnetically couple with the magnetic ring-shaped implant across a wall of the body lumen. The system allows a magnetic ring-shaped implant such as a compression anastomosis ring to be delivered via the access sheath into a body lumen (e.g. a colon) through a hole (e.g. a cut end or a side hole), articulated into position inside the body lumen surrounding (or aligned with) the hole, and then secured in position using the securing magnet.

Methods and apparatus for creating an anastomosis or fistula between the gallbladder and an adjacent organ are disclosed. First, a parent magnet, typically a permanent magnet, is deployed in the stomach, small intestine, or another organ adjacent to the gallbladder, and a mating daughter material is deployed in the gallbladder in order to create a magnet-compression anastomosis. The gallbladder may then be ablated or otherwise functionally inactivated through the anastomosis. Another aspect of the invention relates to an all-in-one surgical kit that contains all the necessary specialized tools for a surgeon to perform the procedure.

This disclosure provides an anastomosis reinforcement patch that can be fitted onto an anvil, comprising: a patch body having an annular structure with pores on its surface; and a connecting portion connected to the patch body and configured to fit the patch body onto the anvil. The patch body has a cutting position that penetrates the pores. In response to an external annular blade cutting the cutting position, the annular structure inside the cutting position detaches from the patch body, and the remaining portion of the pores forms an open opening towards the cutting position. The toothed structure allows the anastomosis to expand relatively around its diameter after cutting, reducing pressure at the anastomosis edge and lowering fluid resistance at the anastomosis.

This application relates to an endovascular suture device for minimally invasive surgery of the upper respiratory tract and neck, belonging to the technical field of medical suture devices. It includes an operating handle, a puncture rod rotatably mounted on the operating handle, an anastomosis head rotatably mounted on the end of the puncture rod, and a suture assembly mounted on the anastomosis head. The anastomosis head has a suture groove on its end side, the opening width of which is greater than the width of the wound to be sutured. The anastomosis head's end side and the opposite side walls of the suture groove are located on opposite sides of the wound to be sutured. The rotation axis of the puncture rod is aligned with its length direction, and the rotation axis of the anastomosis head is perpendicular to the rotation axis of the puncture rod. This application facilitates endovascular suture of the upper respiratory tract (nasopharynx, trachea, etc.) and neck organs (thyroid, parotid gland, etc.), achieving the effects of endovascular repair and hemostasis.

A compression anastomosis system comprises matching first and second compression ring devices (1, 40, 50, 60, 70, 80, 90), each compression ring device configured for adjustment from an elongated delivery configuration suitable for passing through a minimally invasive surgical instrument to a deployed radially expanded configuration dimensioned to circumferentially abut an inner wall of a body lumen. The compression rings comprise coupling elements (20, 41, 56, 57) for coupling the rings together in a face-to-face compression anastomosis configuration, and each compression ring device has a radially outward facing surface (10) comprising tissue anchors (12, 58) configured to anchor the ring to the wall of the body lumen when the ring is deployed in the body lumen. A method of forming a compression anastomosis in a body lumen such as a colon is also described.

A medical implant device for Anastomosis of both Aorta. Proximal and Distal ends is presented. The device is designed to facilitate the connection between the Aorta and the device, with both ends of the device being one size smaller than the Aorta size. The device features protrusions located about 8mm from both ends, which are specifically designed to aid in the application of suture loops to tighten the Aorta and block blood flow between the device and the Aorta, respectively. Shrinking sleeves tightly secure the blood vessels and the device, both before and after the protrusions, once heated or in contact with blood. The design of the device aims to simplify the Anastomosis procedure, reducing the time and skill required for the surgeon to perform the procedure, while also improving the overall safety and efficacy of the Anastomosis.

The engagement of the two atria via atrial pacing therapy is determined using one or more metrics based on monitored external electrical activity. For example, external electrical activity can be monitored during delivery of the atrial pacing therapy, right atrial and left atrial components can be generated based on the monitored external electrical activity, and one or more metrics can be generated based on the right atrial and left atrial components. One or more metrics can then be used to determine whether the atrial pacing therapy has biatrial engagement.

The present application relates to the field of medical devices, in particular to an electric endoscope anastomat, comprising a mounting base, a switching assembly, a locking assembly, a clutch gear and a feed rack; the switching assembly comprises at least a contact component and a first spring, wherein, along the axial direction of the clutch gear, the clutch gear is limited between the contact component and the first spring, and the contact component and the first spring are respectively used to apply force to the clutch gear; the locking assembly is arranged between the switching assembly and the mounting base, and when the clutch gear and the feed rack are in a mutually separated state, the locking assembly is used to separably lock the mounting base and the switching assembly. Under the condition of receiving external force, the locking assembly can be switched from a locked state to an unlocked state, so that the switching assembly and the mounting base are switched from a mutually locked state to a mutually separated state, and under the action of the first spring, the clutch gear moves along the direction from the lower dead point to the upper dead point, so that the clutch gear and the feed rack can be re-engaged.

This disclosure provides an anastomosis reinforcement patch, assembled in a staple cartridge, comprising: a patch body, the patch body being annular in structure, the annular structure having at least two pores on its surface, with a cutting position between the pores; and a first connecting portion perpendicular to and connected to the patch body, the first connecting portion having a first connecting hole configured to connect with an external connecting line to assemble the anastomosis reinforcement patch in the staple cartridge. When an external annular blade cuts the patch body along the cutting position, the annular structure inside the cutting position detaches from the patch body, causing the remaining portion of the pores to form an open opening on the side facing the cutting position. The multiple pores and the inner diameter of the annulus form a toothed structure. This toothed structure allows the anastomosis to be relatively relaxed around its diameter after cutting, reducing pressure at the anastomosis edge and lowering fluid resistance at the anastomosis.

This invention provides a stapler assembly and a stapler. The stapler assembly includes: a housing assembly; a jaw assembly; a connecting assembly including: a first joint member, a second joint member, a fixing member connecting the second joint member and the housing assembly, and a steering connector; and a driving assembly connected to the connecting assembly to drive the jaw assembly to swing relative to the housing assembly. The steering connector has a limiting hole at one end and a limiting post and a limiting arm at the other end. The first joint member has a protrusion that is inserted into the limiting hole. The fixing member has a through hole for the limiting post to pass through. The second joint member has an insertion hole for the limiting post and a slot for the limiting arm to be inserted, thus achieving a movable connection between the first joint member, the second joint member, and the fixing member. This allows for a large swing angle of the jaw assembly, while requiring less power to drive the jaw assembly to swing, resulting in better flexibility and movement agility of the stapler assembly.

This invention discloses a foreskin inner support shield assembly for a stapler, including an inner support shield and a shield connecting rod. The advantages of this invention are: it abandons the traditional single-size, fixed-size glans shield structure, adopting a flexible adjustment structure where the shield opening can be gradually adjusted from large to small. This not only provides better protection but also eliminates the hassle of selecting a large number of different glans shields. Furthermore, the adjusted inner support shield's inner wall leaves sufficient clearance for subsequent reasonable operations between itself and the glans. The inner support shield's surface is fitted with a thin rubber sleeve, and the surface of the rubber sleeve is moistened with cleaning fluid, improving patient comfort and speeding up the process for the foreskin. By guiding the cleaning fluid N+1 times to the contractile expansion filling part, the contractile expansion filling part pushes the foldable part inward again, reducing the pain caused by foreskin cutting and separation and rubbing against the inner support shield opening.

The utility model relates to medical instrument technical field discloses a urological anastomat with extension function, including anastomat body, the anastomat body includes anastomotic rod, one end of anastomotic rod rotatory installation has rotation block, one end of anastomotic rod is provided with the sliding hole that penetrates itself, the inside slide of sliding hole is provided with pull rod, and the one end of rotation block that fits anastomotic rod is provided with threaded hole, through setting extension component and limiting component, make urological anastomat's pull rod length can be flexibly adjusted according to the actual demand of operation. This design effectively solved the problem that the length of the pull rod of the existing device is inconvenient to adjust or the adjustment range is limited, can better adapt to the physiological structure of different patients, improves the precision and convenience of anastomosis operation in operation, reduces the operation difficulty and risk, also guarantees the effect and safety of operation.