Medicine-prefilled and sustained-release apparatus for uterus uses and implantation method

Abstract

The invention discloses a medicine-prefilled and sustained-release apparatus for uterus uses and an implantation method. The medicine-prefilled and sustained-release apparatus includes a net bag and a jel body. The jel body is composed of a jel material which can absorb liquid and expand and medicine which is used for treating uterus diseases. A plurality of micro apertures are formed in the side face of the net bag, and the inner portion of the net bag forms a reception chamber for receiving the jel body; while in usage, the jel material absorbs water in the reception chamber, expands and struts the net bag, and the medicine is released towards the outside via the micro apertures. The implantation method comprises the steps of: sending the net bag to the uterus, and injecting the jel body to the inner portion of the net bag. The medicine-prefilled and sustained-release apparatus allows the net bag to automatically expand while in usage, and based on the exterior pressure, enables the net bag to adaptively abut on irregular tissue walls with geometrical shapes so as to form a larger supporting contact surface, and delivers medicine in a 360-degree all dimensional manner so as to achieve an effect of complete sterilization and at the same time prevents the micro apertures in the net bag from being blocked and achieves an effect of long-term and sustained-release medicine administration.

Description

technical field [0001] The invention relates to the technical field of medical device design for uterine disease treatment, in particular to a drug-carrying slow-release device for uterus and an implantation method. Background technique [0002] Uterine inflammation is a common gynecological disease, which brings great troubles to female patients. Current options for treating uterine inflammation include oral medication and vaginal packing. [0003] The advantage of oral medicine is that it is convenient to take, but the disadvantage is that some patients who need precise indications for administration are forced to circulate the medicine through the whole body because of oral administration without targeting, and the pertinence and therapeutic effect are greatly reduced. [0004] The advantage of vaginal packing is that it is convenient to use and relatively targeted. The disadvantage is that after packing, there is no support, which will lead to absorption or flow out of ...

AI Technical Summary

Problems solved by technology

[0006] Chinese Patent No. 200410050861.7 discloses a new type of pessary, which can realize the method of placing drugs in the vagina to treat cervicitis, but it cannot achieve long-term sustained release drug delivery

However, the existing problem is that this micropore drug delivery method is relatively limited, limited to drugs between 0.1nm and 10nm, and the diameter of the micropore is too small to easily block, which is not conducive to the metabolism and circulation of internal and external substances; The implantation method will also cause a certain degree of secondary damage to the patient.

The device has a large volume, which is easy to cause damage to the patient during the implantation process, and the medicine placed inside it is easy to fall from the port, and the self-adaptive ability of the body is poor, and it cannot provide suitable support for the inner wall of the uterus

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