4 results about "Single incision" patented technology

The invention relates to a single-channel minimally invasive arthroscope sheath which comprises a sheath body, and an observation cavity and an operation cavity are formed in the sheath body in the length direction of the sheath body. A spacer is arranged between the observation cavity and the operation cavity, and the axis of the observation cavity and the operation cavity form a cooperative working area in front of the imbedding end. According to the endoscopic sheath, a single-channel and double-function minimally invasive surgery mode is fundamentally realized. Through the physical isolation of the spacer and the space angle design of the observation cavity and the operation cavity, it is ensured that the arthroscope and the surgical instrument are parallel and do not interfere with each other in a single channel. In the operation process, the arthroscope can obtain a stable and clear operation field, a surgical instrument can directly reach an operation area in the preset direction, the arthroscope and the surgical instrument converge in a target area to form effective cooperation, and therefore a single incision is used for replacing traditional double channels, the wound area is reduced, and on the premise that operation operability is guaranteed, operation efficiency is improved. The number of channels is further reduced, and a more minimally invasive arthroscope sheath structure is achieved.

The invention provides a reamer and an assembling method thereof, and relates to the technical field of medical instruments. The reamer comprises a drill tail, a double-face convex bead connecting piece, a double-face concave bead connecting piece and a drill bit. The two ends of the double-face convex bead and the double-face concave bead connecting piece are connected with the drill tail and the drill bit respectively. By means of the flexible shaft structure, sufficient rigidity and torque transmission efficiency are guaranteed, meanwhile, good space adaptability and path adjustability are achieved, continuous and smooth steering can be achieved in a medullary cavity along a complex anatomical path, multi-angle bone channel reaming through a single incision is supported, the number of puncture times and instrument replacement are reduced, and operation is easy and convenient. The risks of tissue damage, bleeding and infection are reduced. Meanwhile, the multi-channel positioning precision and collaboration are improved, the screw layout is optimized, the internal fixation stability is enhanced, the perspective frequency and X-ray exposure in the operation are reduced, and the operation safety and efficiency are improved. The invention is suitable for percutaneous minimally invasive fixation of complex pelvic fracture, and breaks through the application limitation of traditional rigid instruments.

The utility model discloses a guide pipe head end beveling tool. The guide pipe head end beveling tool comprises a supporting frame, a tool rest assembly and a tool apron assembly. The support frame comprises a bottom plate and a side plate; the knife rest assembly comprises a sliding guide mechanism, a knife rest body and a blade, the knife rest body is connected to the side plate through the sliding guide mechanism, and the blade is connected with the knife rest body and provided with a cutting edge; the tool apron assembly is connected to the bottom plate, the tool apron assembly comprises a first pipe cutting frame, a first grooving part is formed on the first pipe cutting frame, a first cutting seam is formed on the first pipe cutting frame, the first cutting seam is communicated with the first grooving part, and the first cutting seam is arranged below the cutting edge; the guide sliding mechanism drives the tool rest body to slide, the blade is driven to move downwards in an inclined mode, the cutting edge falls into the first cutting seam, and the guide pipe in the first cutting groove part is cut in an inclined mode. The device has the advantages of being simple in structure, flush in notch and accurate, and the similar defects such as arc bending or burr protruding at the end opening position of a cut semi-finished product can be avoided.

1. Name of the product in this design: Orthopedic device (single incision). 2. Application of this design: This design is applicable to the correction and adjunctive treatment of chest deformities. 3. The key design features of this product are its perspective view. 4. The image or photograph that best illustrates the design's key points: a 3D model.