Summary of the invention
The present invention is the problem that the above-mentioned proposition of solution is arrived, for herein is provided a kind of super-elasticity basket type induced abortion device, comprise sheath pipe, seal wire, basket and handle, seal wire through sheath pipe inside is divided into front end seal wire and rear end seal wire, described handle is connected with rear end seal wire, basket for removing pregnant tissue is connected with front end seal wire, and described basket comprises some rhizoid circles, and described basket is made by super-elastic shape memory alloy.
As preferably, described basket is made by nitinol alloy wire.
As preferably, the shape of cross section of described wire ring is arranged to circular or square.
As preferably, described seal wire outer surface is smooth setting, is coated with one deck macromolecule membrane or politef above.
As preferably, described basket is without sharp basket.
The invention has the beneficial effects as follows: reasonable in design of the present invention, can with the object of minimum injury termination of pregnancy, induced abortion device profile has very large elasticity and little coefficient of friction, patient can be made easily to stand when inserting and taking out, and the change can complied with in orientation, uterus and curvature, simultaneously induced abortion device certain flexibility and non-adhesion, not produce new wound to operation receiveing person when taking-up, there is good biocompatibility, avirulence, can not cause uterus uterine cavity wall and infect and injury, the perforation of uterus can not be caused, pregnant tissue is all taken out, reduce operation receiveing person painful.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
A kind of super-elasticity basket type induced abortion device as depicted in figs. 1 and 2, comprise sheath pipe 1, seal wire 2, basket 3 and handle 4, seal wire 2 through sheath pipe 1 inside is divided into front end seal wire 2.1 and rear end seal wire 2.2, described handle 4 is connected with rear end seal wire 2.2, basket 3 for removing pregnant tissue is connected with front end seal wire 2.1, described basket 3 comprises some rhizoid circles 3.1, and described basket 3 is made by super-elastic shape memory alloy.
Described basket 3 is made by the nitinol alloy wire of 0.2 ~ 1mm.
The shape of cross section of described wire ring is arranged to circular or square.
Described seal wire 2 outer surface is smooth setting, is coated with one deck macromolecule membrane or politef above.
Described basket 3 is without sharp basket.
Cylindrical soft tubule is arranged to by described sheath pipe 1.
In use, the basket of super-elasticity basket type induced abortion device and seal wire can be set to integrated disposable sterilization parts for subsequent use, execute preoperative, seal wire rear end are passed through to the rear end of stretching out sheath pipe from the front end of sheath pipe, handle is installed on seal wire rear end, overall disinfection, when executing art, the position of anemia of pregnant woman, sterilization, drape, expose cervix uteri all identical with uterine aspiration with cervix uteri inspection, the hand-held handle of operator one (handle can connect turning motor also can straightforward manipulation), the front end of one hand-held sheath pipe, after the front end of sheath pipe is placed in uterine cavity mouth, sent into slowly in uterine cavity, now, one hand-held hands handle, one hand-held sheath pipe, by controlling the handle of seal wire rear end thus controlling basket, first basket is stretched out in sheath pipe, now because the super-elasticity of Nitinol is added not by the restriction of sheath pipe, basket is expanded to by contraction state the profile presetting expansion and slides into smoothly in uterine cavity, present basket shape, due to the super-elasticity behavior of Nitinol, now basket and uterine cavity wall are Elastic Contact, operator can feel the bottom of uterine cavity according to feel, also under the real-time monitoring of supersonic sounding instrument, basket can be placed in pregnant Nang Suochu, be wrapped in basket, by rotary handle thus by pregnant capsule under uterine cavity wall cutting stripping, then toward the hands handle of seal wire rear end of pulling back, part basket is made to enter in sheath pipe, thus reach tightly pregnant capsule is wrapped in basket, prevent its slippage, extracted while the handle of quick rotation seal wire rear end, see in it that lens capsule tissue of whether being pregnant observes the object whether reaching termination of pregnancy by pull-out basket, or watch under the detection of supersonic sounding instrument and whether all pregnant capsule and Placenta Hominis all being taken out, if no, can again by basket as in uterine cavity, rotary handle again, when feeling that uterine cavity wall is more coarse, then uterine cavity is substantially clean, namely reaches the object of termination of pregnancy.
Reasonable in design of the present invention, can with the object of minimum injury termination of pregnancy, induced abortion device profile has very large elasticity and little coefficient of friction, patient can be made easily to stand when inserting and taking out, and the change can complied with in orientation, uterus and curvature, simultaneously induced abortion device certain flexibility and non-adhesion, not produce new wound to operation receiveing person when taking-up, there is good biocompatibility, avirulence, can not cause uterus uterine cavity wall and infect and injury, the perforation of uterus can not be caused, pregnant tissue is all taken out, reduce operation receiveing person painful.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.