35results about How to "Short learning curve" patented technology

The invention relates to the field of medical instruments, in particular to a sacroiliac joint through-screw positioning coaxial guide and an assembly thereof. The sacroiliac joint through-screw positioning coaxial guide comprises a first positioning rod for fixing a first puncture sleeve, a second positioning rod for fixing a second puncture sleeve, an adjusting device for adjusting a relative distance between the first positioning rod and the second positioning rod, and a fixing device for fixing the positions of the first positioning rod and the second positioning rod. The first positioningrod and the second positioning rod are respectively connected with the adjusting device, and the first positioning rod and the second positioning rod are axially symmetric by taking a vertical centerline of the adjusting device as an axis of symmetry, such that a horizontal centerline of the first puncture sleeve and a horizontal centerline of the second puncture sleeve are in the same line. Thefixing device is connected with the adjusting device. A sacroiliac joint screw can penetrate through a sacroiliac joint and can be accurately placed into the patient body, so that the surgical positioning is accurate, the stability is high, the safety is high, and complications such as vascular nerve injury are avoided.

The invention discloses a guide system for hip replacement and a using method thereof. The guide system comprises a handle, a guide connecting rod, an acetabular cup connector and a sleeve. The lower end of the handle is connected with the acetabular cup connector. One end of the guide connecting rod is connected with the side close to the upper end of the handle, a sleeve hole is formed in the other end of the guide connecting rod, and the sleeve is nested into the sleeve hole. The acetabular cup connector comprises a mounting shaft which can be connected with an acetabular cup in a rotating mode, and the center axis of the sleeve is roughly overlapped with the axis of the mounting shaft. According to the guide system for hip replacement and the using method thereof, the guide system is easy to assemble and disassemble and convenient, quick and accurate to use, the completion time of minimally invasive surgery is greatly shortened, any muscle and any joint capsule do not need to be cut off in the operation process, an acetabular component can be accurately positioned, inserted and pressed in a matched mode, and dislocation can be avoided.

The invention discloses a minimally-invasive S1 sacroiliac joint screw positioning guider which is characterized by including a sliding guide rail (1), a first positioning rod (2), a second positioning rod (3), an anterior superior spine locating sleeve rod (11), a posterior superior iliac spine sleeve rod (12), an S1 spinous process positioning needle (14), an S1 sacroiliac screw sleeve (7), a first guide buckle (4) and a second guide buckle (5). The positioning guider is universal and easy to operate and control, positioning is achieved through constant rules between bone landmarks, the positioning guider does not change along with postures in operations, operation time is reduced, fluoroscopy times are reduced, and learning curves are reduced.

A novel keyboard interface and input method are described. The interface is driven by a dynamic, general-purpose typing and data-entry software application, with a reduced number of keys to minimize screen real-estate requirements, especially for mobile devices. At any given time, the interface presents base characters with built-in key points on or around the base characters that can be selected and/or swiped to generate characters. The key points are strategically placed based on the intuitiveness of such placements, reducing the curve for learning how to use the interface. Its advantage over other methods of input such as handwriting, voice and gesture recognition is that it is less prone to error and privacy issues. The interface occupies a dramatically smaller area of the screen compared to traditional on-screen keyboards and can provide alternate placement as well as transparency to reveal text or images underneath. It can be implemented in most mobile and other computing platforms with reduced resource requirements.

The invention relates to interlocking intramedullary nails, in particular to an improved interlocking tibia intramedullary nail and belongs to the technical field of orthopedic surgery medical instruments. The improved interlocking tibia intramedullary nail comprises an interlocking intramedullary nail of which the distal end is provided with a taper positioning hole, an intramedullary nail lock pin with low notch and an intramedullary nail fixing tail cap with low notch; the interlocking intramedullary nail of which the distal end is provided with a taper positioning hole is composed of threeparts, namely a proximal forerake bending area, a middle vertical area and a distal forerake bending area; a distal interlocking pin hole and a distal taper positioning hole are formed in the distalforerake bending area; the intramedullary nail lock pin with low notch is mounted in a proximal interlocking pin hole and the distal interlocking pin hole of the interlocking intramedullary nail, andcomprises a lock pin head and a threaded rod; the intramedullary nail fixing tail cap with low notch is mounted at the top of the proximal end of the interlocking intramedullary nail of which the distal end is provided with the taper positioning hole, and comprises a tail cap head and a threaded rod.

The present invention discloses a lens nucleus pre-splitting device suitable for a micro-incision cataract ultrasonic emulsification operation. A head end of the device and a connecting rod can come in and out of eyes from a 2-mm micro-incision. The lens nucleus pre-splitting device comprises a connecting rod, a middle of the connecting rod is hollow tubular, a Y-shaped double-channel structure isformed in the hollow tubular connecting rod, an elastic handle is arranged at a rear end of the connecting rod and comprises two elastic slices, one ends of the elastic slices are connected to a rodbody of the connecting rod, the other ends of the elastic slices are a movable end, a silk thread structure is arranged in the hollow tubular connecting rod, one end of the silk thread structure is connected to the movable ends of the elastic slice, and the other end of the silk thread structure is divided into two strands at the double-channel structure to form a ring-shaped ring sleeve. The lensnucleus pre-splitting device is convenient in operation and short in learning curve, can easily and completely split nuclei of cataract crystalline lens, especially the hard nuclei, also has little damage to intraocular tissues, greatly improves efficiency and safety of nucleus splitting and is beneficial to smooth proceeding of the subsequent ultrasonic emulsification operation.

The invention belongs to the technical field of medical treatment and ophthalmology, and discloses a post-bulbous block anesthesia technology, which comprises the following specific operation steps: dotting an eye for 1-2 times by using a surface anesthetic in advance, after 5 minutes, making an incision on a conjunctiva at the bottom of a dome corresponding to a lacrimal punctum under an operation eye under direct vision of a microscope, and then performing post-bulbous block anesthesia on the conjunctiva at the bottom of the dome; the bulbar conjunctiva, the bulbar fascia and the sclera are fully separated, and the porcelain white sclera is exposed. Repeated experiments show that an incision with the size of about 2mm is formed in the dome bottom conjunctiva corresponding to the lacrimal punctum under the operation eye, bulbar conjunctiva, bulbar fascia and sclera are fully separated, the porcelain white sclera is exposed, then medicine injection is conducted through a self-made improved injection needle, the good anesthesia effect can be achieved, and the technical scheme is standard, simple and normative in operation, low in cost and suitable for large-scale popularization and application. The learning curve is short, the anesthetic effect of conventional postglobular retardation anesthesia (5-6 ml) can be achieved by using a small amount of anesthetic (about 4 ml), and no serious anesthesia complications are generated.

The invention discloses a long bone locking steel plate traction external fixator and a using method thereof. The external fixator comprises an inner ring groove steel plate, an outer traction support, a clamping needle traction base, a traction rod and a bone needle, the inner ring groove steel plate is fixedly connected to a long bone and located in a body, the outer traction support is connected to the inner ring groove steel plate through a connecting rod and located outside the body, the clamping needle traction base is arranged on the outer traction support and slides in the length direction of the outer traction support, the traction rod is parallel to the outer traction support, both ends of the traction rod are connected to the outer traction support and the clamping needle traction base respectively, and the bone needle is arranged on the clamping needle traction base. The clamping needle traction base can be connected to the outer traction support in a bidirectional mode torealize bidirectional sliding movement and has a wide range of applications. An adjusting bolt is adjusted to enable the traction rod to drive the clamping needle traction base to move outwards, thenthe bone block is drawn at a fixed speed to slide to the far end, which is easy and stable to control, and the operation success efficiency is high.

The invention provides an intramedullary lock nail with a low cutting track, relates to a lock nail which cooperates with an intramedullary nail, and belongs to the technical field of medical instruments for orthopedic surgery. The intramedullary lock nail with the low cutting track consists of a lock nail head and a threaded rod; the lock nail head is arranged on the upper portion of the threadedrod, a screwing structure with an internal polyhedral angle sinking hole is arranged in the lock nail head, and is positioned in the center of the top end surface of the lock nail head; and a handheld structure is arranged in the lock nail head, and is positioned in the center of the bottom of the internal polyhedral angle sinking hole. The coronal plane of the lock nail head is a trapezoidal plane or a semispherical plane, wherein the range of a base angle of the trapezoidal plane is 15 degrees to 90 degrees, and edges of the periphery of the trapezoidal plane are subjected to rounding; andthe spherical height of the semispherical plane is smaller than half of a circle. The internal polyhedral angle sinking hole is an internal hexahedral angle sinking hole. The handheld structure is arranged to be a threaded hole of which the diameter is smaller than the diameter of the internal polyhedral angle sinking hole, and is positioned in the center of the bottom of the internal polyhedral angle sinking hole.