Stapler is the first suture device in the world, which has been used for gastrointestinal anastomosis for nearly a century. It was not until 1978 that tubular stapler was widely used in gastrointestinal surgery. Generally divided into one-time or multiple use staplers, imported or domestic staplers. It is used on medicine alternatives to traditional manual suture devices, because of the development of modern science and technology and production technology improvement, the clinical use of stapling quality is reliable, easy to use, tight, elastic, right especially the suture is rapid, simple operation and few side effects and complications such as advantages, also make the past can not be removed to lesion resection of tumor surgery.
Stapling, including housing, center rod and tube, the center rod in push tube, center front end is equipped with screw cap, the back-end through adjusting knob at the end of the connecting screw and shell, shell outer surface has inspired handle, inspire active connection handle through a hinge and shell, whose character is: described stapling with linkage, The three connecting rods are respectively connected with the excitation handle, the inner wall of the shell and the push tube, and one end of the three connecting rods is connected with the same movable hinge; The three connecting rods of the connecting rod mechanism include a power rod, a support rod and a moving rod; The power rod and the excitation handle are hinged; The movable hinge is connected between the supporting rod and the shell; The movable hinge is connected between the moving rod and the pushing tube. The stapler of the utility model has the advantages of simple structure, convenient operation and strong stability.
The structure of stapler
Digestive tract anastomat push rod connected to the annular cutter structure, including the push rod, and the push rod fixed connection of circular knife, described the outer edge of the circular knife set have more than one direction is arranged along the circumference of ejector pin, described one end of the push rod are circular knife are embedded, due to the push rod are embedded with one end of the circular knife, so circular knife with high concentricity of push rod, in the process of cutting organization, The ring knife can sit in the middle smoothly and the operation success rate is high.
Digestive tract anastomat ejector pin of the device, including 6 nail warehouse ontology, ejector pin 1 of ontology, the first side wall hole 5 nail storehouse 7 at both ends of the department with the first guide wall 9 respectively, the second side wall 8 at both ends of the department has a 10 second guide wall respectively, the same the first guide wall 9, 10 second guide wall intersection and intersect arc transition, The first guide wall 9 and the second guide wall 10 at the same end are arranged on a relative scale; When there is a small change in the geometry of the stitching, it can also be safely located in the hole of the stitching bin by the role of the guide wall, to ensure that the width of the push nail sheet is greater than the width of the stitching crown, so that the stitching shape is good.
The connecting structure of the puncture cone and the nail seat of the digestive tract stapler includes a nail seat and a puncture cone. The nail seat is fixed with a clamp spring, and the puncture cone is inserted between the clamp springs, and the clamp spring clamps the puncture cone. Depending on the spring clamping force of the clamping spring, the nail seat can be reliably connected or separated from the puncture cone, which is safe to use and convenient to install.
Digestive tract anastomat double speed regulating device, including stapling ontology, and described the stapling ontology can turn to connect switch ontology, ontology and described knob connected with screw thread, the screw plug of stapling ontology are described in the inner chamber, the front of the screw rod is connected with stapling in this cavity in the body center, The screw has a first thread segment and a second thread segment connected, and the pitch of the first thread segment is greater than that of the second thread segment. It can quickly shorten the distance between the nail bin and the nail seat, and then the second thread segment slides relative to the knob body, which makes the screw move slower when the knob is rotated, which is beneficial to the operation of digestive tract.
Post time: Jan-05-2022
