Background
Salpingography is an examination method for injecting contrast medium into uterine cavity and oviduct through catheter and knowing whether oviduct is unobstructed, blocking part and uterine cavity form according to the development condition of contrast medium in oviduct and pelvic cavity;
in the prior art, when a radiography is carried out, a catheter is required to extend into a uterine cavity, contrast agent is required to fill the uterine cavity and fallopian tubes, then the uterine cavity is blocked to avoid outflow of the contrast agent, in the existing catheter, two parts are generally adopted to serve as blocking points, including an external cervical orifice and an internal cervical orifice, for example, a Chinese patent No. CN210472770U provides a balloon radiography catheter for blocking the internal cervical orifice, but in the implementation and use, the mode of extending into the uterine cavity to block the internal cervical orifice is required to insert the radiography catheter into the uterine cavity through the cervical canal, then the balloon is utilized to fill the uterine cavity, the uterine cavity and the problem are blocked to a certain extent, meanwhile, the catheter head end also possibly interferes with uterine angles, the uterine tube opening is blocked, the process also causes pain and discomfort for a patient, meanwhile, the patient is difficult to insert due to adhesion or cervical and other diseases, the cervical is stimulated to generate vagal reaction, nausea, sweating, heart rate reduction and the like even can appear in the case of a Chinese patent No. CN207679853, the cervical orifice is also provided for the external cervical orifice is shaped like, and the shape of a cervical orifice is not suitable for the external cervical orifice, and the shape is not suitable for the cervical orifice is shaped like a patent, and the shape of a cervical orifice is not suitable for the external cervical orifice, and the cervical orifice is not completely blocked, and the shape is not suitable for the shape of a cervical orifice is shaped and is perfectly blocked.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a prefilled deformable self-adaptive disposable hysterosalpingography catheter and application thereof, and solves the problems that the existing angiography catheter does not have self-adaptive capability for different cervical ports and has poor plugging effect.
The technical aim of the utility model is realized by the following technical scheme:
part of the utility model: the prefilled deformable self-adaptive disposable hystero-salpingography catheter comprises a catheter and is characterized in that the right end of the catheter is sleeved with a prefilled deformable body fixedly connected with the catheter, the whole deformable body is in a round table shape or a nipple shape, and the capability of elastic deformation of the deformable body from right to left is gradually reduced or the elastic modulus of a right side structure part is smaller than that of a left side structure part.
The utility model also provides an application of the hysterosalpingography catheter with the technical characteristics in sealing the cervix by self-adaptive deformation and cervical side wall fitting in the salpingography examination.
The utility model has the beneficial effects that:
according to the utility model, the cervical orifice is plugged through the deformable body arranged on the catheter, the deformable body is arranged into a round table shape or a nipple shape in advance, so that the deformable body can conveniently enter the cervical orifice, and then the right end of the deformable body is arranged to deform more than the left end, so that after the deformable body enters the cervical orifice, the inner side wall of the cervical is extruded to adaptively deform along with the entering depth, so that the deformable body is fully contacted and extruded with the complex inner side wall of the cervical orifice, the adaptive deformation plugging is realized, and meanwhile, the area, which does not enter the cervical orifice, of the leftmost end of the deformable body can be well covered on the outer end of the cervical orifice, and the plugging effect on the cervical orifice is further improved.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to fig. 2-3.
In the first embodiment, referring to fig. 2, the prefilled deformable self-adaptive disposable hysterosalpingography catheter comprises a catheter 1, wherein the catheter 1 is made of nylon 12, the left side of the catheter 1 is fixedly connected with a syringe connector 4 according to the direction of the drawing, the syringe connector 4 is divided into two parts, one part is a first matching part which is detachably connected with the catheter 1, the other part is a second matching part which is in threaded connection with the first matching part, one end of the second matching part is in threaded connection with the first matching part, the other end of the second matching part is matched with the injection nozzle of the syringe, a plurality of groups are arranged according to the specification of the syringe, so that the universal syringe connector 4 can be used for injecting contrast agent into the catheter 1 when the syringes with different specifications are used, in this embodiment, the injector connector 4 and the catheter 1 are made of the same material, before performing radiography in practical use, the vaginal speculum is required to be used for opening the vagina of a patient, then the catheter 1 is held by hand to stretch the plugging structure arranged on the catheter 1 into the cervix, and meanwhile, the catheter 1 cannot enter the uterine cavity, so as to avoid the hard catheter 1 to stimulate the patient and aggravate uncomfortable feeling of the patient, the universal injector connector 4 is connected with the injector with the contrast agent, so as to enable the contrast agent to be injected into the uterine cavity and the fallopian tube through the catheter 1, in particular, in this embodiment, the prefilled deformable self-adaptive disposable uterine fallopian tube radiography catheter can also be called as the prefilled deformable self-adaptive plugging disposable uterine fallopian tube of the cervix, the action point of the cervical opening and the cervical opening which are used for plugging is different from the cervical opening and the cervical opening which are selected by most existing radiography catheters, but the cervical opening, namely the cervical opening and the cervical opening, are plugged, the cervical opening inner wall with different shapes and shapes can be self-adapted, the cervical opening inner wall is plugged, and meanwhile, the radiography catheter is a disposable product and is not allowed to be used in a crossing way.
In a second embodiment, on the basis of the first embodiment, the right end of the catheter 1 is sleeved with a prefilled deformable body 2 fixedly connected with the catheter 1, the diameter of the prefilled deformable body 2 is preset to be sequentially increased from right to left, the whole deformable body is in a round table shape or a nipple shape, the preset maximum diameter of the left side of the deformable body 2 is larger than the diameter of the cervical outer opening after delivery, the capability of elastic deformation of the right side of the deformable body 2 is larger than that of the left side, by the arrangement, the right side structure part 2a of the right end of the deformable body 2 firstly enters in the process of stretching the deformable body 2 from the cervical outer opening into the cervical, then the deformable body 2 is contacted with the side wall of the cervical opening and extruded along with the continuous entering of the deformable body 2, the elastic modulus of the right end of the deformable body 2 is smaller than that of the left end, the diameter of the left side structure part 2b is larger than that of the right side structure part, the left side structure part 2b of the deformable body is enabled to be in the extrusion effect, the capability of elastic deformation of the right side structure part 2 is enabled to be larger than that of the right side structure part of the right side of the cervical outer opening, the deformable body is enabled to move towards the right side structure part 2a, the right side of the cervical outer opening along with the continuous entering of the deformable body 2, the cervical opening is enabled to be completely expanded along with the continuous entering of the cervical opening, the cervical opening is enabled to be completely expanded along with the expansion of the cervical opening, the cervical opening is completely, the sealing region is enabled to be completely expanded along with the sealing the cervical opening, the sealing region is formed along with the expansion of the sealing region is formed along with the sealing region, and the sealing region is completely expanded along with the sealing region is completely along with the sealing region of the cervical opening, and the sealing region is completely expanded along with the side and the side, further improving the blocking effect on the cervical orifice;
the right-hand member of the deformable body 2 is preset, the tip hose 5 sleeved on the catheter 1 is arranged at the right end of the deformable body, the leftmost end of the tip hose 5 is contacted with the rightmost end of the deformable body 2, and meanwhile, the diameter size of the left end of the tip hose 5 is matched with the deformable body 2, so that the deformable body 2 can smoothly enter the cervix.
In the third embodiment, based on the second embodiment, the deformable body 2 may be an air bag, and preset, and the air bag is filled with fluid or liquid colloid in advance, so that the air bag is nipple-shaped or cone-shaped when in an initial state, and can deform when the air bag is extruded, in this embodiment, specific substances selected for the fluid or liquid colloid filled in the air bag are not limited, so long as the air bag can circulate under extrusion, so that the air bag is attached to the inner wall of the cervical orifice.
In the fourth embodiment, based on the third embodiment, the air bag is made of two materials with different elastic moduli, the elastic modulus of the material adopted by the rightmost structural part 2a is smaller than that of the material adopted by the left structural part 2b, so that the part of the air bag, which is easy to deform when entering the external cervical orifice, is ensured to enter the cervix, the size of the right structural part 2a is preset to be three-fifths to two-thirds of the main size, and in actual use, the right structural part 2a in the air bag stretches into the cervical orifice to enter the cervix, the left structural part 2b is propped against the external side wall of the cervical orifice, and substances filled in the left structural part 2b are enabled to move to the right side through extrusion, so that the right structural part is enabled to expand and deform.
In the fifth embodiment, based on the third embodiment, the balloon may be made of the same material, and the thickness of the balloon from right to left gradually increases during manufacturing, so that the deformability of the right end portion of the balloon is greater than that of the left end portion, and in this embodiment, the balloon is required to extend into the cervix until the left structural portion 2b of the balloon abuts against the outer side wall of the cervical opening during use.
On the basis of the second embodiment, combining with fig. 3, as an alternative scheme, the deformable body 2 is a conical or circular truncated cone-shaped structure body made of medical silica gel material, the conical or circular truncated cone-shaped structure body is preset, the silica gel material can be well attached to a human body, and meanwhile has good fluid performance, so that the deformable body can be well attached to the inner wall of a cervical opening, a baffle ring 3 fixedly connected with the catheter 1 is adhered to the left side of the deformable body (2), the baffle ring 3 is made of hard resin or medical plastic, the diameter of the outer ring is smaller than that of the silica gel material, a certain supporting blocking effect can be achieved on the silica gel material, and when the nipple is used as the deformable body, the deformation can be automatically caused by extrusion, and the right end of the silica gel material is provided with a certain limit, so that the silica gel material part can be forced to be extruded and attached to the inner wall of the cervical opening, so that the cervical opening is completed, the diameter of the nipple is smaller than that the diameter of the silica gel material can be in the third embodiment, and the nipple is in the fifth embodiment, and the nipple is in the three-dimensional structure that the nipple is in the three-dimensional structure, and is in the three-dimensional structure that the three-dimensional structures of the cervical opening is actually made.
When the utility model is actually used, firstly, the cervical orifice is exposed, the vaginal speculum is used for spreading the vagina, the cervical orifice is disinfected, bacterial infection caused by injury of the cervical orifice when the cervical orifice is stretched into a conduit is avoided, then a contrast conduit is put into the cervical orifice, the catheter 1 is held by hand, the pointed flexible pipe 5 is stretched into the cervical orifice from the external cervical orifice, the right side structural part 2a of the deformable body 2 is continuously stretched into the cervical orifice from the external cervical orifice until the left side structural part 2b of the deformable body 2 is contacted with the external cervical orifice, then the cervical orifice is blocked, the catheter 1 is required to be continuously moved to the cervical orifice, the left side structural part 2b of the deformable body 2 is extruded to exert force on the right side structural part, the right side structural part 2a is caused to expand, the cervical orifice is self-adaptively deformed, then contrast agent is injected, the general injector connector 4 is connected with the injector, the contrast agent in the injector is finally injected into the uterine cavity from the pointed flexible pipe and the uterine tube for filling, and then the contrast examination can be carried out.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.