Please select the most similar patent number from A, B, C and D. Which number is?
An ultrasonic lactation induction and promotion method, wherein an ultrasonic lactation inducing physiotherapy instrument is used to perform lactation induction and promotion treatment on a lactating woman, specifically comprising the following steps: a. applying a gel to the surface of the skin corresponding to the lactiferous ducts and the breast lobules; b. placing a flat surface of a probe of the ultrasonic lactation inducing physiotherapy instrument on the gel-coated skin, moving the probe back and forth in the direction of the lactiferous ducts, or moving the probe in a circle clockwise or counterclockwise to cover the area of the breast lobules so as to perform ultrasonic lactation induction and promotion treatment; an ultrasonic massage device is used to massage specific acupuncture points and specific areas of the breast, and the treatment solution is fine-tuned according to physical conditions during puerperium; the present invention may quickly and painlessly solve the problems of physiological engorgement, breast nodular hyperplasia and the like, while reducing harm to the hand of a massage therapist
A: Provided is an ultrasonic device for postpartum rehabilitation, comprising: a main machine (100); and a treatment gun (200) connected to the main machine (100), wherein the treatment gun (200) is used for transmitting focused ultrasonic waves to a specific site on the body of a puerpera. The ultrasonic device for postpartum rehabilitation can transmit ultrasonic waves to a specific site, such as the uterus, vagina, breasts or pelvic floor, of the body of a puerpera from the outside without causing damage to the skin, so as to perform a non-invasive treatment for postpartum rehabilitation of a puerpera.
B: A vortexed-acoustic-field method for creating cell permeability and a vortexed-acoustic-field method for opening a blood-brain barrier. The vortexed-acoustic-field method for creating cell permeability comprises: using an ultrasonic transducer (105) (S210, S310, S410); using a probe (100) emitting a vortexed acoustic field, wherein the probe (100) emitting a vortexed acoustic field has a piezoelectric patch (101), the piezoelectric patch (101) comprises at least one inner channel, and when there are a plurality of inner channels, a phase difference is generated between each two inner channels and is used by the ultrasonic transducer (105) to generate a vortexed acoustic field (S220, S420); and enabling cells to have permeability by means of the generated vortexed acoustic field (200), wherein the vortexed acoustic field (200) has the following parameters: frequency: 20 KHz-20 MHz, and acoustic pressure: 0.1 MPa-10 MPa (S230, S330).
C: A vortex catheter thrombolytic system (10, 11), comprising: an ultrasonic transducer (105); and a probe (100) which emits a vortex sound field, and a catheter (200). The catheter (200) is provided at the probe (100) which emits the vortex sound field, and is connected to the ultrasonic transducer (105); the catheter (200) has a first inner passage (210) and a second inner passage (220); the first inner passage (210) is used for delivering a drug; the second inner passage (220) is used as the vortex drive. The thrombolytic (500) method comprises: by means of the vortex catheter thrombolytic system (10, 11, 12), carrying out an ultrasonic execution step to generate a sound vortex (S510); carrying out a focusing step to focus a drug delivery carrier to the center of the acoustic vortex (S520); and carrying out an operating step to operate the drug delivery carrier to a lesion area (S530).
D: Disclosed are a body model and method for bimodal three-dimensional breast imaging quality detection. The body model comprises a three-dimensional breast-shaped phantom structure (1) prepared with an agarose gel comprising polyethylene inside, wherein the polyethylene is a radiation equivalent material of adipose tissue under the X ray, and the relaxation time of the hydrogen proton in the agarose gel in the 3T magnetic field is equivalent to that of human adipose tissue, and a breast tissue catheter phantom (3) and a lobule phantom of the mammary gland (4) distribute inside the breast-shaped phantom structure (1). The body model can be used for image quality detection and analysis in two imaging systems, i.e. magnetic resonance and mammography. The material is flexible, and can be compressed and imaged on a mammography platform, and can also be placed vertically in a magnetic resonance breast coil to carry out a tomography, realizing two imaging ways with one body model, and broadening the application range.
Answer: A