32results about How to "Improving implant accuracy" patented technology

A depolarization waveform classifier based on the Modified lifting line wavelet Transform is described. Overcomes problems in existing rate-based event classifiers. A task for pacemaker/defibrillators is the accurate identification of rhythm categories so correct electrotherapy can be administered. Because some rhythms cause rapid dangerous drop in cardiac output, it's desirable to categorize depolarization waveforms on a beat-to-beat basis to accomplish rhythm classification as rapidly as possible. Although rate based methods of event categorization have served well in implanted devices, these methods suffer in sensitivity and specificity when atrial/ventricular rates are similar. Human experts differentiate rhythms by morphological features of strip chart electrocardiograms. The wavelet transform approximates human expert analysis function because it correlates distinct morphological features at multiple scales. The accuracy of implanted rhythm determination can then be improved by using human-appreciable time domain features enhanced by time scale decomposition of depolarization waveforms.

The invention discloses a parallel robot for prostate flexible needle particle implanting, and relates to the field of minimally-invasive medical apparatuses. The parallel robot has the advantages ofbeing small in size, compact in structure, convenient to operate, free of guide of guiding plates and the like. The parallel robot comprises a parallel posture adjustment mechanism, a flexible needleparticle implanting mechanism, an ultrasonic image navigation mechanism and multiple sensors; a parallel four-degree-of-freedom mode is adopted, the stability of the rigidity of a tail entry needle isimproved, and the outer needle movement flexibility of the flexible needle particle implanting mechanism is also met; a rotary-motor-driven flexible needle is adopted as an inner needle, an arc trackcan be formed through puncturing, obstacles of nerves, blood vessels and the like of the prostate are avoided, and the task of many needles at one point is completed. The ultrasonic image navigationmechanism is installed on a supporting base of the parallel posture adjustment mechanism, and can complete linear translation, pitching, yawing, and rotation around the center line of the ultrasonic image navigation mechanism, and focus target images are obtained via the anorectum so that a doctor can make corresponding processing according to real-time needle entry situations of particle implanting needles. The parallel robot is merged with the multiple sensors, so that the doctor conveniently carries out data observation and precise operation in a surgery, and the requirements for high precision positioning of entry needles and the safety of the surgery are met.

The invention relates to a preparation method of interplantation shape memory alloy wire layering composite and a composite shaping mould for realizing the method. The method uses a specially designed mould and implants a group or several groups of shape memory alloy wires which are distributed in parallel in the single target layer or a plurality of target layers during layering of fiber reinforcement or the prepreg thereof, so that the method is suitable for mould pressing or resin vacuum auxiliary shaping. The shape memory alloy wire interplanted with the method can overcome the influence of mould pressing and resin flowing and is stably distributed at the preset position of composite thickness at designed pre-elongation amount to form composite with reliable and accurate vibration performance; the shaping mould is a set of combined metal matched moulds and comprises a set of steel frame assemblies, a metal surface plate patrix, a counterdie with a groove and a counterdie cover plate, wherein the steel frame assemblies can clamp the shape memory alloy wire and can control the elongation amount and the horizontal height thereof.

The invention discloses an integrated ejector pin storing and conveying module for implantation of radioactive particles. The integrated ejector pin storing and conveying module comprises: a shell; an ejector pin storage disc, which is arranged in the shell; a flexible ejector pin, which is wound on the ejector pin storage disc; a straightening mechanism, which comprises two rows of calibration wheels that are sequentially arranged on the shell in a longitudinal direction, wherein a straightening gap is formed between every two adjacent calibration wheels, the connecting line of all the straightening gaps is in an S shape, and the outer wall of each calibration wheel is provided with an annular extrusion groove attached to the flexible ejector pin; and a conveying mechanism, which is arranged on the shell and used for pulling the flexible ejector pin to advance along the straightening gaps and linearly conveying the flexible ejector pin to a preset track. The whole integrated module is simple and ingenious in structure; the flexible ejector pin with enough length can be contained in a small space; the flexible ejector pin can be effectively straightened; and the straightness and flatness of the flexible ejector pin are guaranteed, and the implantation precision of radioactive particles is improved.

The present invention provides a seedling transplanting machine capable of supplying fertilizer from plantation of seedling and capable of reliably informing an operator that remain of the fertilizer is becoming less. The seedling transplanting machine is characterized in that a rear part of walking car body is provided with a planting device, a fertilizer device, and an operating component used for performing stop and advance operations for the walking car body, wherein the planting device and the fertilizer device stop and work in linkage with the stop and advance operations of the operating component, the seedling transplanting machine is also provided with a control device, when the operating component performs the advance operation, the control device begins to drive the fertilizer device, after predetermined time from driving the fertilizer device, the control device enables the walking car body to advance and begins to drive the planting device.

The invention provides a seeding transplanter capable of preventing the damage of a soil preparation device and reliably smoothing the surface of a field. The rear part of a walking vehicle body is provided with a seedling planting portion (4) elevating by means of an elevating connecting mechanism (3), the seeding transplanter of the soil preparation device (27) for smoothing the surface of the field is provided with a soil preparation support bracket (76) for supporting the soil preparation device (27), the soil preparation device is configured to a position closer to the front side of the transplanter body than the soil preparation support bracket (76), a first soil preparation rotating arm (75a) for connecting the left side and the right side of the soil preparation device and the soil preparation supporting bracket is provided, a second soil preparation rotating arm (75b) is arranged between the left side and the right side of the first soil preparation rotating arm, the second soil preparation rotating arm is provided with a soil preparation elevating device (77) for elevating the soil preparation device, the soil preparation device is formed by an elevating actuator (79) and an elevating part (80) configured at the seedling planting portion (4), and the elevating part (80) and the second soil preparation rotating arm (75b) is connected via a suspension arm (81).

A method for forming a transistor includes providing a substrate, forming a well region in the substrate, and forming a gate structure on a surface of the well region. The gate structure includes a gate oxide layer on the surface of the well region and a gate on the gate oxide layer. The method further includes forming source/drain regions in the substrate at opposite sides of the gate structure and performing an ion doping to the substrate to adjust a threshold voltage. The ion doping is performed after the source/drain regions are formed to reduce the impact to the diffusion of the ions caused by heat treatments performed before the ion doping. The method further includes heating the substrate after the ion doping at a temperature from about 400° C. to about 500° C.

The invention discloses a 3D printed micro-implanting nail guide plate and a design method thereof. The guide plate comprises a tooth surface retention plate, a gingiva retention plate, a micro-implanting nail implanting hole, and a handle guide pipeline. According to the design method, CBCT jaw bone data, a three-dimensional dentition model, and micro-implanting nail data obtained by microCT scanning are integrated together, so that the design method is more accurate than a method only using jaw bone data or micro-implanting nail data obtained without accurate scanning. According to the design method, an implantation site and an implantation direction of a micro-implanting nail are determined simultaneously, so that the implantation of the implanting nail is consistent with a design plan,the implantation accuracy is improved, and the safety during the implantation process is ensured to the maximum extent. The micro-implanting nail guide plate is divided into two, the problem that taking-out of the guide plate is relatively difficult after implanting the micro-implanting nail is solved, a metal ligature wire commonly used in the clinic is used for ligature and fixation, and thereby taking-out is relatively convenient. Finally, the design of the micro-implanting nail guide plate is simple and easy to implement, the micro-implanting nail guide plate can be popularized in the clinic, and the problem of touching the tooth root during the implantation process of the micro-implanting nail is avoided.

A method of controlling the implant dosage is provided. First, the residual gases within an ion implant station are analyzed and the partial pressure of each residual gas is measured. Thereafter, the current Im of the ion beam is measured and the real dosage Ir of the ion beam implanted into a wafer is calculated. Since all the residual gases in the ion implant station are considered, the implanting dosage can be accurately controlled.

A seedling transplanting machine has a preparation seedling rack, thus even if a machine body shakes due to unevenness of a field, rotation of an expansion support mechanism can be suppressed, even if the number of preparation seedling loading benches is increased, the seedling can be put in and taken out easily, and even if the seedling is loaded, motion of the expansion support mechanism can not be affected. A side part of a driving car body is provided with the preparation seedling rack, the preparation seedling rack is provided with a force application device used for supporting the plurality of preparation seedling loading benches to form the movable expansion support mechanism and applying force to the expansion support mechanism. The seedling transplanting machine is provided with a switching mechanism which enables the expansion support mechanism to act, in order to switch stack forms of the plurality of preparation seedling loading benches arranged along an upward-and-downward direction and expansion forms of the plurality of preparation seedling loading benches arranged along a forward-and-backward direction, when the preparation seedling rack is switched from the stack form to the expansion form, the force application device applies a force to the expansion support mechanism towards an expansion form side at a movement starting end side, and applies a force to the expansion support mechanism towards a stack form side at a movement terminal side.

The invention discloses an anchor rod implanting device for concrete slope ecological vegetation restoration construction. The anchor rod implanting device comprises a piling device and a traction device. The pile driving device comprises a vehicle body, a storage mechanism used for storing anchor rods, a pile driving mechanism used for driving the anchor rods into a slope and a pile conveying mechanism used for conveying the anchor rods stored in the storage mechanism into the pile driving mechanism. Walking wheels are arranged on the vehicle body; the traction device is used for adjusting the piling position of the piling device and comprises a fixing table, a cable arranged on the fixing table and a cable winding mechanism used for winding the cable. During piling, the fixed table is fixed to the flat ground at the upper end of a slope; the cable winding mechanism is mounted on the fixed table; one end of the cable is wound on the cable winding mechanism, and the other end of the cable is connected with the vehicle body. According to the anchor rod implanting device, the anchor rod can be automatically implanted on a slope, and the implanting efficiency and the implanting precision are higher.

The invention relates to a pneumatic prostate particle implantation mechanism, which is applied to the field of medical treatment and mainly comprises an outer needle cylinder, an inner needle cylinder, a brake cylinder, a displacement sensor, an inner needle, an outer needle, a cylindrical slideway, a brake mechanism, a radioactive particle supply mechanism and a base. The air cylinder is fixed to the air cylinder support, an air cylinder support is connected to the base, the outer needle is connected with the particle supply block, the outer needle air cylinder moves in the axial direction to drive the radioactive particle supply mechanism, the radioactive particle supply mechanism is connected with the outer needle, and therefore axial feeding movement of the outer needle is achieved, the inner needle cylinder is connected with a moving sliding block, and the inner needle cylinder pushes the sliding block, the sliding block drives the inner needle to move axially, the inner needle penetrates through the radioactive particle supply module to enter the outer needle, implantation of radioactive particles is achieved, the brake air cylinder is connected with a brake pad, and the brake air cylinder acts to achieve locking and unlocking of a brake. The pneumatic prostate particle implantation mechanism is simple in structure, high in precision, high in needle inserting speed and small in pollution to an operating room, and transmission media are easy to obtain.

The present invention provides a seedling transplantation apparatus which can easily change a track that is portrayed by an end part of a seedling transplanter of the seedling transplantation apparatus. A rotation shaft (36) which can rotate freely is provided in a transplantation transmission part housing (21). The rotation shaft (36) and a rotation housing (30) are in an integrally rotatable structure. A transmission shaft (35) is equipped according to a mode that the rotation housing (30) is rotatable. One side of the transmission shaft (35) is provided with the seedling transplanter (27), and the other side is provided with a driven cam (34). The inside part of the rotation housing (30) is provided with a guiding cam (32) which is fixed on the transplantation transmission part housing (21). A driven cam (34) is provided with a main cam roller and an auxiliary cam roller. The guiding cam (32) is provided with a main guiding trough (33) for guiding the main cam roller and an auxiliary guiding trough (70) for guiding the auxiliary cam roller.

The invention provides a guide plate for fibula osteotomy and implant implantation. The guide plate comprises a main body and a connecting structure, wherein the main body is provided with a first surface, the first surface is provided with a first through hole, the first surface is tightly attached to the front surface of a fibula, and the first through hole is used for allowing an implant to pass through; the main body is further provided with a plurality of thick cutting channels, the thick cutting channels and the first through hole are distributed at intervals, and the thick cutting channels are used for guiding a cutting blade to move in the guiding direction of the cutting blade; and the connecting structure is fixedly connected to the main body and used for being fixedly connected to the fibula.