41 results about "Fetal head" patented technology

The traction type midwifery assist device comprises an outer head sleeve and an inner head sleeve, and the outer head sleeve comprises an outer sleeve and an elastic clamping jaw; the inner head sleeve comprises a sleeve body, a traction pull rod and a covered edge. On one hand, on the basis of collaborative design of the elastic clamping jaws and the sleeve body, initial wrapping can be formed along with automatic outward expansion and inward contraction of the fetal head during midwifery, the edge of the sleeve opening is driven to be overturned and tightened inwards by means of the opposite acting force of the traction pull rod and the outer sleeve, dynamic gradual wrapping of the fetal head is achieved, wrapping traction can be achieved after the outer head sleeve is detached outwards, and the operation is convenient. The risk of fetal head slippage is reduced, the traction stability is enhanced, scalp hematoma, tissue injury and maternal soft birth canal injury possibly caused by traditional negative pressure suction are effectively avoided, and the safety of a mother and an infant is improved; and on the other hand, the matching of the claw tips and the covered edges is ingeniously utilized, so that the interference of the covered edges on the size change of the sleeve opening is reduced, and a smaller covering opening can be provided during inward turning covering so as to increase the covering force formed by the sleeve body and the fetal head.

The invention belongs to the field of medical treatment, and relates to a dynamic birth process progress automatic monitoring method, which comprises the following steps: S1, continuously detecting and screening image frames containing intact pubis symphysis and fetal head skull halo; s2, performing standard section screening on the continuous ultrasonic image frames by using a USPNet model based on a Swin Transform architecture; s3, automatically marking a birth process progress angle and a fetal head exposure position through an AI segmentation model, and calculating a fetal head exposure value; s4, driving the three-dimensional fetal head and pelvis model based on the real-time progress angle and fetal head exposure position data, and dynamically rendering and updating a relation graph of the three-dimensional fetal head and pelvis; s5, dynamically displaying the three-dimensional relational graph of the fetal head and the pelvis; and S6, establishing a fetal head descending and uterine contraction signal time sequence curve, and estimating the descending amplitude of the fetal head in the future set time based on a linear regression or curve fitting prediction algorithm. According to the application, continuous, dynamic and accurate monitoring and visual display in the uterine contraction period can be realized, doctors are assisted in scientific decision making, and the delivery management level is improved.

The invention relates to a parturition risk identification method and system based on parameter fusion. The method comprises the following steps: acquiring a first clinical index; and constructing a static prediction model. Positioning a pelvis entrance plane and a birth canal space; the position of the fetal head is positioned through symphysis pubis ultrasound; evaluating a fetal head orientation; key skull mark points are marked on an ultrasonic interface, and a third clinical index is obtained; and determining a spatial geometrical relationship between the mark point and the medial axis of the birth canal, and obtaining a second clinical index. Pre-constructing a dynamic prediction model based on the first clinical index, the second clinical index and the third clinical index; obtaining a dynamic prediction probability by using the clinical indexes of the patient and the dynamic prediction model; and performing auxiliary early warning based on the dynamic prediction probability. According to the method, the static indexes and the dynamic indexes are fused, the method is suitable for continuous dynamic judgment, the method can be highly fused with the progress of the production process, combined use of a static early warning model and a dynamic early warning model is supported, and the sudden change trend of the risk can be captured.

The present invention discloses an obstetric fetal head suction assistance device, comprising a suction head and an air extraction part, the air extraction part comprising a cylinder and an air extraction member, the air extraction member comprising a piston and a handle, the handle extending out of the cylinder, the piston dividing the inner cavity of the cylinder into a first cavity and a second cavity, the trachea being arranged outside the first end of the cylinder, the first end plate of the cylinder being arranged in a first flow channel, the first flow channel being provided with a first control component for controlling the air flow rate entering the first cavity through the first flow channel to prevent air oscillation in the inner cavity of the trachea, the second end plate of the cylinder being provided with a second control component for controlling the air flow rate of gas entering and exiting the second cavity from the outside to prevent air oscillation in the trachea; the present invention is provided with a control component for preventing the air from entering and exiting the second cavity at too fast a speed, so that the device can slowly stop when the air intake is finished, and can first slowly and then quickly when the air is deflated, thereby avoiding the air oscillation in the suction head causing fetal brain injury, and has strong practicality and safety.

This invention relates to the field of midwifery technology, specifically to a midwifery system and method for dynamic correction of fetal head position and assessment of birth canal compatibility. The invention determines a scalp adhesion index based on the degree of time lag between the midwifery traction force and the relative displacement of the handle within a pre-defined analysis period before each moment in the traction period; it determines a force-pressure hysteresis coefficient based on the degree of non-coordinated change between the midwifery traction force and the change in negative pressure within the traction period; it corrects the relative displacement of the handle at each moment in the traction period based on the scalp adhesion index and the force-pressure hysteresis coefficient, determines the estimated skull descent, and selects the net bone propulsion value for the traction period; and it assesses the birth canal compatibility status during the traction period based on the force-pressure hysteresis coefficient and the net bone propulsion value. This invention combines the force-pressure hysteresis coefficient, representing the efficiency of midwifery operations, with the net bone propulsion value, representing the actual labor progress, to accurately distinguish the physical causes of labor stagnation and improve the accuracy of birth canal compatibility assessment.

The invention relates to a fetal head suction midwifery device for the obstetrics and gynecology department and belongs to the technical field of medical instruments. The fetal head suction midwifery device for the obstetrics and gynecology department comprises a supporting cylinder, an adsorption head and an adjusting assembly, a piston is slidably connected to an inner cavity of the supporting cylinder, and the two sides of the piston are connected with an air suction cylinder and an extension cylinder respectively; the adsorption head annularly surrounds the periphery of the supporting cylinder and comprises a fixed cylinder and an elastic cylinder, the fixed cylinder is connected with the supporting cylinder, and the elastic cylinder is arranged on the side, away from the supporting cylinder, of the fixed cylinder; the adjusting assembly is arranged in an inner cavity of the fixing cylinder and comprises a limiting cylinder, an adjusting block and a plurality of connecting ropes, the limiting cylinder is connected with the fixing cylinder, a plurality of clamping grooves distributed in the axial direction of the limiting cylinder are formed in the inner wall of the limiting cylinder, the adjusting block is slidably connected with the inner cavity of the limiting cylinder, a clamping rod is arranged in the adjusting block and used for being clamped with the clamping grooves, and one ends of the connecting ropes are connected with the adjusting block. The other end is connected with the elastic cylinder; and the connecting rope is configured to be tightened under stress so as to reduce the diameter of the elastic cylinder, or released under unloading so as to increase the diameter of the elastic cylinder.

The invention discloses a semi-supervised ultrasound image segmentation method based on SAM and a double student-teacher framework. The method comprises the following steps: S1, acquiring a plurality of birth time mother-fetal ultrasound videos; s2, extracting the maternal-fetal ultrasonic video obtained in the step S1 to obtain an extracted maternal-fetal ultrasonic image during delivery; and S3, inputting the extracted maternal and fetal ultrasonic images during delivery into the trained DSTCS network, performing automatic segmentation of an anatomical structure, and outputting a segmentation result. According to the method, good segmentation capability can be provided by using a small amount of labeled data, the precision, robustness and method capability of pubis symphysis fetal head segmentation in the intranatal ultrasound image are remarkably improved, and more reliable technical support is provided for clinical delivery decision making.

The invention discloses an intelligent visual midwifery system for gynaecology and obstetrics based on an ultrasonic technology, and relates to the technical field of intelligent evaluation of a delivery process. Key features such as a fetal structure, cervical dilatation and a pelvic form are extracted by collecting two-dimensional and three-dimensional ultrasonic images of a pelvic cavity area of a puerpera in real time; a high-dimensional parameter model is constructed in combination with the uterine contraction period, the body position change trend and the fetal head rotation angle and is used for predicting the delivery stage; meanwhile, an individualized digital twinborn three-dimensional maternal pelvis model is established based on recognition and prediction results, a fetal head descending path and birth canal dynamic deformation are simulated, and three-dimensional visual display is provided; furthermore, cross validation is carried out through a preset rule base and a neural network output result, and abnormal trend recognition and intervention suggestion pushing are realized; the intelligent level and the precision level of birth process monitoring are improved, and the scientificity and the safety of clinical midwifery decision making are enhanced.

1. The name of the design product: obstetric surgery traction dilatation forceps. 2. The use of the design product: for dilating the birth canal and traction of the fetal head to assist in delivery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a midwifery technology simulation education system based on a fetal head aspirator, and the structure of the midwifery technology simulation education system comprises a midwifery device, a vaginal orifice, a perineum part, an umbilical cord, a placenta, a pressing plate, an infant model, a connecting strip, and a uterus body model. A student stretches the obstetric forceps into the uterus body model through a vaginal opening in the perineum to conduct movable delivery on the infant model, the student controls and opens the obstetric forceps to be clamped on the head of the infant model through mutual cooperation of the finger ring and the wave forceps handle, and then the negative pressure pipe is matched with the fetal head aspirator to move. The fetal head aspirator is directly attached to the head of the baby model, contact air between the fetal head aspirator and the baby model is sucked through the negative pressure pipe, and the fetal head aspirator and the obstetric forceps are limited to the corresponding positions through the sleeve to be movably adjusted. And the obstetric forceps and the fetal head aspirator are matched with each other, so that the students in the midwifery major can personally carry out normal childbirth midwifery operation training.

Provided is an apparatus for delivery assistance, which comprises a main cylinder (3) and a suction assembly. One end of the main cylinder (3) is provided with a through hole (32). Both sides of the through hole (32) are provided with rounded corners. The suction assembly comprises a fixed cylinder (5) disposed in the main cylinder (3). One end of the fixed cylinder (5) is connected to an elastic membrane (8). An expansion ring (30) is formed on the elastic membrane (8). A spiral elastic plate (20) is disposed in the expansion ring (30) in a penetrating manner. A first electromagnet (19) and a second electromagnet (21) are disposed at two ends of the spiral elastic plate (20), respectively. A plurality of support rods (16) are disposed in the elastic membrane (8) in a penetrating manner. One end of each support rod (16) is connected to an arc-shaped plate (17). One end of the fixed cylinder (5) proximal to the elastic membrane (8) is provided with an arc-shaped groove (31). The arc-shaped plate (17) is slidably clamped in the arc-shaped groove (31). In the present application, the main cylinder (3) disposed can facilitate the placement of the suction assembly into the puerperal vagina in a folded state, and after placement, the suction assembly self-expands to maintain the suction area on the fetal head while preventing the need for pre-placement dilation of the puerpera's vaginal orifice, thereby maintaining the suction area of the elastic membrane (8) on the fetal head to reduce slippage.

The invention belongs to the technical field of medical instruments, and particularly discloses an obstetrical midwifery device which comprises a fetal head suction cup and further comprises a traction tube arranged at the rear end of the fetal head suction cup, a force unloading buffering protection mechanism arranged at the rear end of the traction tube and a ventilation cylinder arranged behind the force unloading buffering protection mechanism. A first lifting pipe, a second lifting pipe, an air exhaust hose and a sliding pipe are communicated with the outer wall of the air exchange cylinder in a cross-shaped distribution manner, the end part of the first lifting pipe is communicated with a first negative pressure cylinder, the end part of the second lifting pipe is communicated with a second negative pressure cylinder, the end part of the air exhaust hose is communicated with a manual pump, and the sliding pipe is connected with a force unloading buffer protection mechanism. A double-negative-pressure-source alternate standby mechanism is adopted, once the suction cup falls off, a standby negative pressure source can be instantly switched, rapid re-adsorption is achieved, meanwhile, the device has a traction force feedback buffering function, when traction force exceeds a threshold value, transmission connection is automatically converted from rigidity to elastic buffering, effective force unloading is achieved, and the service life of the device is prolonged. And injury to fetuses and lying-in women caused by excessive traction is prevented.

The application provides a fetal head MR image intelligent diagnosis method, comprising the following steps: extracting a preset image sequence from a patient DICOM image corresponding to an examination item; judging whether the image sequence is a T2WI image quality meeting a first preset condition, and if yes, defining the T2WI image as a first image; performing regional segmentation on the first image according to a first segmentation rule, and correcting the first image; defining the corrected first image as a second image; performing regional segmentation on the second image based on a second segmentation rule; analyzing the first image or the second image based on one or more preset diagnosis types and coordinate data of a region corresponding to the diagnosis type, automatically generating diagnosis data of each diagnosis type; and generating a diagnosis impression according to the diagnosis data by an image structured report. The application further discloses a fetal head MR image intelligent diagnosis system. The application can comprehensively, rapidly and intelligently provide image diagnosis data, and immediately know important dangerous signs.

The invention provides an ultrasonic image detection method based on deep learning, and the method comprises the steps: obtaining a to-be-detected fetal ultrasonic image; image segmentation processing and image enhancement processing are carried out on the ultrasonic image, the image segmentation processing is used for extracting a symbolic anatomical structure which at least contains a fetal head area and is related to the to-be-detected chromosome disease, and the image enhancement processing at least comprises image noise reduction and feature contrast improvement; the ultrasonic image obtained through processing is detected through a pre-trained image detection model, a risk result for the to-be-detected chromosome disease is output, and the image detection model adopts a hybrid architecture combining a residual neural network with an attention mechanism. According to the method, the conversion of fetal chromosome disease screening from subjective experience to objective intelligent analysis is realized through the end-to-end deep learning model, and the screening accuracy, robustness and consistency are remarkably improved.

The utility model provides an obstetrical fetal head position rotating corrector, which belongs to the technical field of medical instruments and comprises a head-raising suction body, an anti-scour mechanism is arranged outside the head-raising suction body, an air delivery pipe is fixedly connected to one side of the outside of the head-raising suction body, and an irradiation mechanism is arranged on one side of the outside of the air delivery pipe. The sliding block slides in the sliding groove and transmits force to the supporting rod and the connecting rod, so that the supporting rod disperses pulling force, the connecting position is prevented from being damaged, damage caused by hard pulling force is avoided, meanwhile, the stability of equipment is improved, the service life of the equipment is prolonged, the damage risk caused by stress concentration is reduced, operation is more convenient, and working efficiency is improved. Meanwhile, the suction cup generates negative pressure to suck the head of the fetus, the connecting ring is tightly locked outside the suction cup through threaded connection, stable connection is ensured, a doctor is helped to accurately observe the state of the head of the fetus, and meanwhile the curved surface design of internal threads prevents scratches generated when the searchlight makes contact with the head of the fetus.

The application belongs to the technical field of medical apparatus and instruments, and discloses a fetal head aspirator with anti-reflux function. The fetal head aspirator comprises a handle column, one side of the handle column is fixed with a catheter, one end of the catheter is fixed with a suction cup, the other side of the handle column is provided with a handle plate, the inside of the handle plate is provided with a pushing device, the bottom of the handle column is provided with a shunt cavity, the inside of the shunt cavity is provided with a shunt device, and the inside of the handle column is provided with a guide device. The rubber convex ring inside of the suction cup is matched with the head of the fetus, then the pushing device pushes the air pressure into the guide device, the guide device is driven by the air pressure to generate negative pressure adsorption force in the shunt device, the negative pressure adsorption force is transmitted to the catheter through the shunt device, and finally the negative pressure adsorption force is transmitted to the inner cavity of the suction cup through the catheter, so that the suction cup generates adsorption force to adsorb the head of the fetus.

The invention relates to the field of medical instruments, in particular to a boosting device and method for pushing a fetal head in a cesarean section. The device mainly comprises a push rod, a boosting component arranged at the top of the push rod and a pressurizing component arranged at the bottom of the push rod. The boosting component comprises a bowl-shaped boosting air bag and a deformation part capable of adjusting the diameter of the boosting air bag, and a pressure sensor is arranged on the contact surface of the air bag. The pressurizing component supplies air to the air bag through a pipeline and comprises a piston driving system and a linkage type displacement mechanism composed of a ratchet bar and a shifting piece. The device adapts to fetal heads of different sizes and shapes, large-area uniform contact is ensured, the pressure sensor monitors and displays thrust in real time, and the problems that cavities are generated due to poor contact in traditional operation, and fetal skull injuries or intracranial hemorrhage are easily caused by too large local pressure intensity are effectively solved. And the mechanical propelling mechanism converts the kneading action of a doctor into stable and progressive forward thrust, so that the controllability of the upward pushing process is realized, and the safety of an operation is remarkably improved.

The invention relates to the technical field of image processing, and particularly provides a key structure image segmentation method and system for obstetric ultrasound, and the method comprises the steps: obtaining and preprocessing an obstetric ultrasound image, and obtaining an input feature map; hierarchical feature extraction is performed through an encoder path, a channel attention module is arranged in each convolution stage to adaptively re-calibrate a feature channel, and a deep feature map is output; sequentially executing multi-scale context aggregation and global dependency modeling on the deep feature map to obtain an enhanced context feature map; and inputting the feature map into a decoder path, fusing the feature map of the corresponding stage of the encoder through jump connection, carrying out step-by-step up-sampling to recover the resolution, and finally generating a pubis symphysis and fetal head segmentation result through an output layer. According to the method, key features can be adaptively enhanced, noise can be suppressed, local to global context information can be cooperatively captured, and high-precision and high-robustness segmentation of large and small targets can be realized in images with strong noise and large scale difference.

The application discloses a kind of based on ultrasound image labor progress angle measurement method, system, equipment and medium, the method comprises: obtaining ultrasound image, the ultrasound image is the standard section image of preprocessed perinatal mother-fetus ultrasound;Ultrasound image is input into trained segmentation convolution network, and the segmentation result of pubic region and the segmentation result of fetal head region are obtained;Pubic region segmentation result and fetal head region segmentation result are fitted, and then the labor progress angle is measured to obtain.The present application realizes the full automation measurement of labor progress angle by adopting artificial intelligence technology, and then can replace ultrasound physician to complete labor progress angle measurement, so as to solve the technical problems that the workload of existing traditional manual measurement is large and time-consuming.

The invention relates to the technical field of medical equipment, in particular to an image display method, an image processing method, an auxiliary system and a storage medium. The image display method for birth time monitoring comprises the steps that a trigger instruction of statistical graph time points in a display interface is received, a statistical graph is used for displaying a plurality of ultrasonic parameters corresponding to a plurality of time points, and the display interface further displays a fetus model graph corresponding to the latest time point; the trigger instruction points to historical time points except the latest time point in the time points; in response to the trigger instruction, displaying a fetal model diagram corresponding to a historical time point on a display interface; wherein the ultrasonic parameters comprise fetal orientation and / or fetal head position. By means of the method, the fetal model diagram at the latest time point can be displayed in the statistical diagram, the fetal model diagram at the historical time point can be reviewed, the conditions of the fetus in the abdomen at different time points are visually presented through the fetal model diagram, and the usability of the ultrasonic image in the aspect of delivery monitoring is improved.

The invention relates to the technical field of medical image processing, in particular to a fetal brain magnetic resonance single thick layer scanning three-dimensional reconstruction method, device and equipment, and the method comprises the steps: obtaining single thick layer scanning data of a fetal brain during magnetic resonance imaging in any direction; generating a brain mask result of the fetal brain according to a single thick layer in the single thick layer scanning data; the fetal head orientation is judged according to the brain mask result, and a single thick layer in the single thick layer scanning data is registered based on the fetal head orientation and the brain mask result to obtain a target registration result; the target registration result is input into a reconstruction network, the reconstruction network outputs a three-dimensional reconstruction result of the fetal brain, the reconstruction network comprises a conditional potential diffusion model or a convolutional neural network, and the conditional potential diffusion model or the convolutional neural network performs three-dimensional reconstruction on the target registration result to obtain the three-dimensional reconstruction result of the fetal brain. Therefore, the problems of relatively long scanning and reconstruction time, relatively poor stability and the like of three-dimensional reconstruction in related technologies are solved.

The present invention comprises an Ultrasound Image-Based Gestational Age Estimation System and a method thereof. The invention introduces advanced deep learning models designed to estimate gestational age (GA) by utilizing ultrasound (US) images. The Garbh-Ini Ultrasound image-based Gestational Age Estimator (GAUGE) is specifically trained on ultrasound images of the fetal head. The invention also includes a mechanism to identify and discard images in the presence of data distribution shifts, thereby minimizing the risk of inaccurate predictions. Thus this method has provides clinicians with a sophisticated, accurate efficient and one of its kind tool for gestational age estimation.

The invention relates to the field of obstetrics and gynecology midwifery, in particular to an obstetrics and gynecology midwifery auxiliary device which comprises a midwifery chair, a seat plate is fixedly installed on the upper surface of the midwifery chair, the rear end of the seat plate is rotationally connected with a lying plate through an arranged hinge, and a pushing and pressing mechanism is arranged above the lying plate. The front end of the seat plate is rotationally connected with a foot pad plate through an arranged hinge. Under the condition that a pregnant woman is not suitable for exerting force or does not have autonomous force during childbirth due to diseases, the abdominal wall of the pregnant woman is massaged, pushed and pressed in time through a rolling ball to assist childbirth, and the fetal head can be supported in different directions after being discharged out of the vaginal orifice through the supporting mechanism. The situation that the doctor has more energy to deal with the condition during delivery is affected by the fact that the pad is replaced in time by slightly upwarping the waist of the pregnant woman after the pad is soaked by a large amount of body fluid during delivery of the pregnant woman through the pad replacing mechanism, and therefore judgment of the doctor on the fetus traction position is affected is avoided.

The utility model relates to the field of medical equipment, in particular to a vulva protection device used in delivery, which comprises a patch, the patch is provided with an avoiding window, the patch comprises a protection layer and a connection layer, the connection layer is arranged on one side of the protection layer in a covering mode, the protection layer is an elastic material structural member, the connection layer has viscosity, and the protection layer is provided with an elastic material. The perineum paste is used for sticking around perineum of a puerpera On one hand, the protective layer provides certain contractile force for the vaginal orifice, when the vaginal orifice is expanded to a certain degree, the contractile force provided by the protective layer is increased, and the problem of vaginal tearing caused when expansion reaches the limit is reduced, and on the other hand, the protective layer has elastic force and plays a buffering role in the vaginal orifice expansion process; relatively, the elasticity of the skin around the vaginal orifice is increased, and the problem that the perineum is torn due to the limit compression of the fetal head on the perineum during vaginal delivery is reduced.

The invention relates to the field of electric digital data processing, and relates to a Seq2Seq-LSTM-based motor control method for simulating parturient delivery, which comprises the following steps: acquiring delivery data in a clinical delivery process, and constructing a data set; the fetal head rotation angle is decoupled into a periodic component and a trend component, the change rate of the trend component is calculated, and a data set for training is constructed; segmenting the training data set in a preset time range to form a training sequence; constructing a double-flow LSTM encoder, and generating a joint state vector through a fusion layer according to a parallel processing result; and the decoder executes phase perception attention decoding by taking the combined state vector as an initial state, outputs a final predicted value of a fetal head rotation angle and a predicted value of a fetal head descending position after boundary constraint is applied, and converts the final predicted value and the predicted value into a motor control signal through a kinematics mapping function to control a delivery motor to rotate. The motor is prevented from being stuck or equipment is prevented from being damaged, and the simulated delivery process conforms to the real physiological law.

The self-adaptive delivery forceps comprise a left forceps body, a right forceps body and an inflation control system. The plier hinge of each plier body comprises a fixed hinge, a self-adaptive hinge connected through an elastic rubber block and a front-end arc-shaped guide part; a single continuous inflatable strip extends along the outer surface of the clamp page at a spiral angle of 270-450 degrees and is attached to the inner surface of the self-adaptive page, and only one side of the single continuous inflatable strip is adhered; and the plurality of pressure sensors are arranged on the arc-shaped guide part and the inner surface of the self-adaptive page. The inflation control system calculates the maximum local contact pressure based on all sensor signals, dynamically adjusts the overall inflation degree of the inflatable strip through an incremental PID algorithm, and ensures that the local contact pressure at any position does not exceed 40 kPa. The self-adaptive page can be driven to be dynamically attached to the curved surface of the fetal head, the skull injury risk is remarkably reduced, and midwifery safety and effectiveness are improved.

The application relates to the technical field of ultrasonic images, and discloses a parameter measurement method and device based on an ultrasonic image and a readable storage medium. The method comprises the following steps: acquiring an ultrasonic image; wherein the ultrasonic image is collected when a positioning piece is arranged on the skin surface of a pubic symphysis of a measured human body; determining a pubic symphysis contour and a fetal head contour according to the ultrasonic image; wherein the pubic symphysis contour is replaced by the positioning piece; determining a detection parameter according to the pubic symphysis contour and the fetal head contour, and displaying the ultrasonic image and the detection parameter; wherein the detection parameter comprises at least two of a fetal head progress angle, a distance between the pubic symphysis and the fetal head, a fetal head progress distance and a distance between the fetal head and the perineum. Through the above method, the requirement for the image quality of the ultrasonic image is reduced, the medical staff or the ultrasonic system does not need to pay too much attention to whether the reference tissue features in the ultrasonic image are clear and complete and whether the reference tissue features are easy to identify and extract, and therefore the extraction efficiency of the detection parameter is improved.

The invention relates to the technical field of obstetrical forceps, and particularly discloses an obstetrical forceps with a scissors function for delivery in the obstetrical department, which comprises an obstetrical forceps main body, the obstetrical forceps main body can be divided into a left blade and a right blade, and the tail part of the obstetrical forceps main body is provided with a blade handle; the clamping box is positioned at the tail part of the blade handle; the traction mechanism is positioned at one end of the clamping box, which is opposite to the obstetric forceps main body; the damping mechanism is located between the clamping box and the traction mechanism; when the device is used, a user can decide the force of pulling a tire head through the traction mechanism every time according to the force of clamping a blade handle through the clamping box, different pulling forces and distances are adjusted through the damping mechanism according to the tire heads of different sizes, and the situation that the tire heads are extruded due to the large pulling force is avoided; in the using process, in order to avoid birth canal injury, a perineum lateral cutting operation can be conducted on a puerpera through the cutting piece, and the perineum lateral cutting device is very convenient and safe to use.

The invention belongs to the field of delivery assistance, and provides a tough patch which comprises a colloid, the colloid comprises an adhesive layer, a breathable layer is arranged below the adhesive layer, a comfortable layer is arranged below the breathable layer, an adhesion modification layer is arranged below the comfortable layer, a slow-release anti-allergy layer is arranged below the adhesion modification layer, and the slow-release anti-allergy layer is arranged below the slow-release anti-allergy layer. A protection improvement layer is arranged below the slow-release anti-allergy layer; uniform pressure can be applied to the perineum tissue in the fetal head delivery stage, the tissue extension direction is guided, so that the tearing risk is reduced, the delivery safety is improved, the adhesive sticker has good buffering performance and mechanical supporting effect, continuous and controllable protection can be provided for the perineum at the delivery critical moment, and the delivery safety is improved. Fatigue influence caused by long-time manual operation of medical staff is avoided, stability and consistency of operation are improved, workload of the medical staff is relieved, and a more standardized perineum protection mode is achieved.

The invention relates to an obstetrical clinical midwifery traction instrument with a self-adaptive adjusting function, which comprises a fetus aspirator, a hollow tube is fixedly connected to the left side of the fetus aspirator, a hose is fixedly connected to the other end of the hollow tube, and an air suction plate communicated with the hollow tube is fixedly connected to the left side of the inner wall of the fetus aspirator. The right side of the air suction plate is provided with an air bag, the right side of the air bag is fixedly connected with a baffle, the right side of the baffle is fixedly connected with a threaded rod, the outer portion of the threaded rod is rotationally connected with a supporting frame fixed to the inner wall of the fetus aspirator, the outer portion of the threaded rod is sleeved with a spring, the right side of the supporting frame is rotationally connected with a rotating plate, and a plurality of second sliding grooves are formed in the surface of the rotating plate. The inner wall of the second sliding groove is slidably connected with a sliding plate, and the outer end of the sliding plate is fixedly connected with a contraction plate. According to the fetus aspirator, the suction end of the fetus aspirator can automatically contract towards the inner side, and the fetus aspirator can be self-adaptively adjusted to be adaptive to the sizes of different fetus heads without manual adjustment.