8 results about "Endoscopic stapler" patented technology

The application provides a disposable guide head for automatically adjusting the volume of a laparoscope anastomat, which is composed of a puncture part and a sleeve part connected with each other, the puncture part is used for shuttling or picking human tissues, the sleeve part is used for sleeving a vice clamp, the puncture part is provided with a first air cavity and a second air cavity arranged at intervals from head to tail; the first air cavity is filled with compressed gas; and a valve is installed between the first air cavity and the second air cavity. The compressed gas makes the first air cavity swell, thereby increasing the volume of the puncture part of the guide head. When the space of the human tissues is too large, the puncture part can be attached to the human tissues, so as to avoid collision with the human tissues; when the pressure of the human tissues is too large, the first air cavity is extruded, the internal air pressure is increased, thereby opening the valve, and the gas in the first air cavity enters the second air cavity; at this time, the space containing the gas is increased, the air pressure is reduced, the volume of the puncture part is reduced, thereby facilitating the guide head to pick the part with excessive pressure of the human tissues.

This invention relates to the field of medical device technology, and more particularly to a laparoscopic suture device, comprising a fixed handle, an operating lever mounted on one side of the fixed handle, a movable cover plate disposed on one side of the operating lever, a clamp assembly installed inside the movable cover plate, and an adjustment component disposed on one side of the fixed handle, the adjustment component including a rotating wheel disposed on the top of the fixed handle. This invention, by incorporating a rotating wheel, a swing-rotation switch, and an angle controller, achieves flexible adjustment of the clamp assembly in multiple directions and angles, solving the problems of limited adjustment range and inconvenient operation of existing laparoscopic suture devices, enabling the instrument to better adapt to complex anatomical morphologies; the inclusion of a cover plate toggle and a movable handle improves the convenience of opening, closing, and locking operations; the rounded corner design of the clamp assembly surface reduces sharp edges, improving passability and safety; markings facilitate rapid identification of the suture needle position during surgery, effectively improving suturing accuracy and surgical efficiency.

According to the endoscope anastomat with the percussion protection mechanism, a main body is the endoscope anastomat, a nail pushing block of the endoscope anastomat is provided with a limiting part, and when the nail pushing block is located at the initial position, the limiting part extends out of the near end of a nail bin assembly; the cutting knife group comprises a connecting rod and a cutting knife part located at the front end of the connecting rod, the cutting knife part is rotationally connected to the front end of the connecting rod, an upper boss is arranged on the upper portion of the side face of the cutting knife part, a rib is arranged at the front end of the cutting knife part, and a lower boss is arranged on the lower portion of the side face of the cutting knife part; a guide cavity extending in the front-back direction is formed in a nail abutting base of the endoscope anastomat, an opening communicated with the guide cavity is formed in the rear portion of the anastomosis face of the nail abutting base and used for containing the cutting knife set, and a limiting step used for abutting against the lower boss is formed in the front side of the opening. The hollow nail bin protection mechanism has the advantages that the hollow nail bin protection mechanism is adopted, the original mode that the cutting knife assembly is clamped in a buckling mode is omitted, a new scheme is designed, the influence of large resistance is avoided during percussion, and the stability and reliability of the anastomat are improved.

The present invention relates to the technical field of staplers, and in particular, to an anastomotic stoma reinforcing assembly apparatus and a stapler assembly for minimally invasive surgery. Said apparatus comprises a reinforcing sheet assembly, a first reinforcing sheet support assembly, a second reinforcing sheet support assembly, and a staple cartridge assembly. The reinforcing sheet assembly is mounted at an upper portion of the staple cartridge assembly. The first reinforcing sheet support assembly is arranged inside the reinforcing sheet assembly. The first reinforcing sheet support assembly and the second reinforcing sheet support assembly cooperate to fix the reinforcing sheet assembly on the staple cartridge assembly. The lower end of the first reinforcing sheet support assembly is in clamped connection with the staple cartridge assembly. The upper end of the first reinforcing sheet support assembly is in clamped connection with the second reinforcing sheet support assembly. The present invention can not only ensure the stable connection between the reinforcing sheet assembly and the staple cartridge assembly, but also staple the upper and lower reinforcing sheets into the tissue by means of anastomotic staples, thereby improving the strength of the wound, avoiding bleeding and leakage of the wound, and reducing postoperative complications. The integrated connection between the reinforcing sheet and the endoscopic stapler assembly facilitates operation and reduces application defects caused by the falling, wrinkling, and twisting of the reinforcing sheet.

A needle and suture assembly is provided for use with an endoscopic suturing device with a needle holder arm. The needle assembly includes a needle tip and a needle body. The needle tip has a sharp end. The needle body is tubular and has first and second ends and flexible tab retainers adjacent the second end for retaining the needle body relative to the needle holder arm. The tab retainers elastically deform to allow the needle body to be released from the needle holder arm upon application of force therebetween. The needle body has a suture opening located between the first end and the retainers. A suture extends into the suture opening of the needle body and is fixed therein.

The application provides a single-drive jaw-closing, suture and staple cartridge interchangeable endoscope anastomat, which comprises a staple cartridge assembly, a joint assembly, a cutting knife, a drive sleeve, a closing and cutting drive mechanism and an anastomat shell, the staple cartridge assembly and the joint assembly are connected, the drive sleeve is connected to the front end of the anastomat shell, the closing and cutting drive mechanism is located in the anastomat shell and extends into the drive sleeve, the cutting knife is connected to the execution end of the closing and cutting drive mechanism in the drive sleeve, and the working part of the cutting knife can first force the staple cartridge assembly to close and then fire the staple cartridge while keeping the staple cartridge assembly closed during the forward movement under the drive of the closing and cutting drive mechanism. The endoscope anastomat provided by the application realizes the jaw closing and the staple cartridge firing through only one drive mechanism, and the process of the staple cartridge firing can also directly cut the tissue, so that multiple functions are realized through one drive mechanism, and the drive structure of the anastomat is simplified.

An endoscopic stapler of the present invention allows for endoscopic approximation of tissue via stapling, avoiding invasive surgical procedures. The endoscopic stapler provides (1) flexibility compared to a traditional surgical stapler; (2) a long instrument (at least 135 cm) enabling the stapling to occur from a long distance as opposed to the short mechanism with today's surgical staplers; (3) a "bending section" allowing the device to reach to its target (often located at an angulation / corner / behind folds / or needing a retroflexed position); (4) small size to allow insertion through the upper esophageal sphincter (the size-limiting point in our field); and, (5) additional channels to facilitate endoscopic procedures including: one or more cameras, one or more accessory channels, suction port, and irrigation port. These features allow for easier and faster approximation of tissue, improve the efficacy of bariatric endoscopy procedures, increase the durability of tissue approximation, and reduce the costs of effective weight loss intervention.

The application discloses an endoscope suture device for minimally invasive surgery and belongs to the technical field of medical devices, comprising a mounting piece, a first clamping piece and a second clamping piece arranged on the mounting piece, characterized in that the first clamping piece is used for releasably clamping one end of a suture needle, the second clamping piece is used for releasably clamping the other end of the suture needle, and the first clamping piece and the second clamping piece are of the same structure; the mounting piece is provided with a first driving mechanism for driving the first clamping piece to open and close and a second driving mechanism for driving the second clamping piece to open and close, and the first driving mechanism and the second driving mechanism are of the same structure and are independent of each other. The application has the effects of avoiding instrument collision and interference, reducing the difficulty of two-hand coordination and learning curve, and improving the convenience of operation under a two-dimensional field of view.