7results about How to "Increase the sampling area" patented technology

The minimally invasive sampling device comprises a sampling head, the sampling head comprises a first shell and a second shell, the first shell and the second shell are arranged to be of the same shape, one end of the first shell and one end of the second shell are arranged to be of a hemispherical structure, and the first shell and the second shell are arranged to be of a hollow structure; a blade outlet groove is formed between one end of the first shell and one end of the second shell; connecting rods are fixedly connected to the sides, close to each other, of the first shell and the second shell, a rotating rod is fixedly connected between the outer sides of the two connecting rods, torsional springs are connected to the outer sides of the connecting rods and located in the rotating rod, a cutting knife is fixedly connected to the outer side of the rotating rod, and the cutting knife is of an arc-shaped structure and is eccentrically connected with the rotating rod. Compared with a traditional capsule-shaped clamping sampling device, the device has the advantages that the area of a sampled sample is larger, a wound is narrower, and the recovery speed can be higher. Therefore, the effective examination area can be increased, the discomfort of a patient can be effectively reduced, the risk of wound infection is reduced, and the healing process of a wound is accelerated.

The utility model provides a process chamber and device of an ion implanter, and an automatic particle monitoring system, an ion implantation source of the ion implanter enters the process chamber according to a preset implantation track, the process chamber is a high-vacuum chamber when an ion implantation process is carried out, and the process chamber is a high-vacuum chamber when the ion implantation process is carried out. The process chamber comprises a wafer bearing table arranged in the implantation track range of the ion implantation source; and a chamber particle monitor; the chamber particle monitor comprises a particle sensing part and a signal processing part, a signal of the particle sensing part is transmitted to the signal processing part; the particle sensing part is arranged outside the implantation track range of the ion implantation source, and the signal processing part is arranged outside the process chamber. According to the technical scheme, the particle concentration in the process chamber can be effectively monitored in real time, the particle concentration in the process chamber can be truly reflected, and the monitoring accuracy is high.

The utility model discloses a portable negative pressure system fly ash sampling device. The portable negative pressure system fly ash sampling device comprises a sampler main body, a push-pull cover plate, a sealing cover, a handle and a sampler front cover, the sampler main body adopts a circular tube structure with a sampling opening; the push-pull type cover plate adopts a semicircular pipe structure and is in sliding connection with the sampler main body; the push-pull type cover plate is provided with a spring bin, a spring is arranged in the spring bin, one end of the spring is fixedly connected with the sampler front cover, and the other end of the spring enters the spring bin and is fixedly connected with the push-pull type cover plate; and a barrier plate is fixedly arranged at the top of the push-pull cover plate. The push-pull type cover plate is matched with the barrier plate and the spring, so that the push-pull type cover plate is automatically opened and closed, the sampled fly ash is prevented from reentrainment of dust, and the operation is simple and practical; by arranging the sealing ring, the sampler main body and the negative pressure system form a sealed container during sampling, and the influence of negative pressure on sampling is avoided.

The utility model provides a kind of puncture sampling catheter, belong to puncture sampling catheter technical field, the puncture sampling catheter includes: main pipe body, inner needle assembly, rotating handle, sealing cover and fixed seat;The main pipe body is hollow cylindrical structure, the distal end of main pipe body is equipped with bevel opening, and the proximal end of main pipe body is equipped with connecting port;The inner needle assembly includes needle and needle handle, needle and needle handle are fixedly connected, and the needle can be slidably arranged in the inner cavity of main pipe body;The proximal end connecting port of main pipe body is fixedly connected with rotating handle;Sealing cover is installed at the proximal end connecting port of main pipe body by thread connection, and the center of sealing cover is provided with through-hole, needle handle passes through the through-hole of sealing cover center and is connected with fixed seat;The fixed seat is arranged outside sealing cover, and the utility model solves the technical problem that the puncture sampling catheter in prior art exists sampling precision is not high, and operation is not flexible.

The invention relates to the technical field of gynecological medical instruments, in particular to a vaginal secretion sampling device which comprises an intubation tube, a sampling assembly, a plurality of expansion assemblies, a plurality of push plates, a limiting frame and an adjusting assembly. One end of the intubation tube is open, and the sampling assembly sleeves the outer surface of the intubation tube. The plurality of expansion assemblies are arranged in the insertion pipe, and the plurality of push plates are arranged between the insertion pipe and the sampling assembly. The limiting frame is fixedly arranged at the open end of the insertion pipe and comprises a guide cylinder. The adjusting assembly comprises a position adjusting rod, the position adjusting rod is arranged in the guide cylinder and can slide along the inner wall of the guide cylinder, an ejector rod is fixedly arranged at the end, close to the insertion pipe, of the position adjusting rod, and the central axis of the guide cylinder, the central axis of the position adjusting rod and the central axis of the ejector rod are collinear with the central axis of the insertion pipe. When the device is used, the guide cylinder can limit the position adjusting rod to move along the central axis of the cannula all the time, the ejector rod cannot incline, and the sampling assembly can be uniformly stretched, so that the normal sampling process can be ensured, and the comfort of a female patient is improved.

The utility model relates to the technical field of environment detectors, in particular to an automatic road dust monitor which comprises a lifting rod, the bottom of the lifting rod is fixedly connected with a limiting base, the top end of the lifting rod is fixedly connected with a limiting block, the outer side of the lifting rod is fixedly connected with a fixing device, the outer side of the lifting rod is fixedly connected with a track, and the track is fixedly connected with a motor. A clamping box is slidably clamped to the outer side of the track, a first bearing is fixedly installed on the inner wall of the clamping box, a first motor is fixedly connected to the inner wall of the first bearing, a gear is fixedly connected to one end of the first motor, a detection box is fixedly connected to one end of the clamping box, and a second motor is fixedly connected to the interior of the detection box; the device is simple in structure and convenient to use, and can be mounted on a nearby street lamp pole through the fixer, the height can be freely adjusted through the lifting rod, and the detection area can be enlarged through free rotation of the sampler.

The utility model discloses a pressure difference sampling tube structure, including fan casing, connecting cylinder, sampling tube and mounting cover, connecting cylinder is connected with fan casing, connecting cylinder is equipped with mounting hole on the end part of fan casing departing from, sampling tube partially passes through mounting hole, the outer wall of sampling tube is connected with the sealing disc, and the sealing disc is connected with the fan casing. The installation cover is rotatably arranged on the periphery of the sampling tube, the installation cover is in threaded connection with the connecting cylinder, the sealing disc is located between the installation cover and the end of the connecting cylinder, the sampling tube is connected with a pressure difference testing device, and the end, located on the connecting cylinder, of the sampling tube is provided with an oblique notch. The technical scheme is used for solving the technical problem that a differential pressure sampling opening of an existing gas turbine housing cooling fan is prone to being blocked.