CN209204447U - Salpingograph with holding force fixed structure - Google Patents

Abstract

The utility model discloses a kind of salpingographs with holding force fixed structure, comprising: bullet, load radiography bar and holding force fixed structure.During clinical use, the radiography device does not need to enter uterine cavity, it only needs to enter vagina and is placed in cervical orifice and can inject contrast solution and develop, it can completely show entire uterine cavity, the lesions such as uterine malformation, adhesion, polyp are presented completely, so that fallopian tubal is developed naturally, be conducive to diagnose, and patient's no pain；Taper outside radian matches with cervix opening size, and the realization sealing that mutually fits in turn avoids bullet and enters uterine cavity influence inspection precision；By the holding force portion of holding force fixed structure and fixed part, salpingograph and cervical orifice is made to keep stable fit-state.

Description

Oviduct contrast device with force-fixed structure

technical field

The utility model relates to the field of medical equipment, in particular to a fallopian tube imaging device with a holding force fixing structure.

Background technique

In recent years, the incidence of infertility has increased rapidly. In 1995, the World Health Organization statistics showed that there were 60-80 million couples suffering from infertility in the world. China currently has no systematic statistics. Infertility has become the three major diseases affecting human life and health together with cardiovascular disease and tumor disease. The main physiological factors affecting infertility are the uterus, fallopian tubes, ovaries and sperm. Tubal infertility accounts for 20%-40% of infertility. Hysterosalpingography can check the conditions of the uterus and fallopian tubes at the same time. It can also diagnose uterine abnormalities, adhesions, blockage of fallopian tubes, and hydrops, and clarify the degree of patency. It is the most common and standard diagnostic method for checking the uterus and fallopian tubes.

At present, the main instrument for hysterosalpingography examination in the world is the balloon catheter. Balloon catheters have been used for more than 30 years, and are produced by catheter manufacturers both at home and abroad. Its working principle is to dilate the cervix, insert the balloon catheter into the uterine cavity, inflate the balloon to block the internal opening of the cervix, inject contrast fluid through the external opening of the catheter, and the contrast fluid flows into the uterine cavity through the fallopian tubes to judge the condition of the fallopian tubes.

However, in the process of clinical use, the existing balloon catheter has the following obvious disadvantages:

1) The balloon fills the uterus, covering the shape and problems of the uterus to a certain extent, and cannot fully reflect the real problem. There is a certain probability of misdiagnosis, and it is easy to cause conflicts between doctors and patients;

2) The tip of the catheter occasionally touches the uterine horn and blocks the opening of the fallopian tube, resulting in the false appearance of fallopian tube blockage;

3) Balloon catheters in the uterine cavity will have high-risk adverse phenomena such as balloon rupture and inability to retract after inflation, which greatly increases the risk of salpingography;

4) During the bolus injection of contrast fluid, the pressure and flow rate are not controlled, and excessive pressure and flow rate will irreversibly damage the fallopian tube villi and endometrium.

At present, the new type of fallopian tube contrast device solves the above problems because it does not need to enter the uterine cavity.

However, at this stage, the only device used to fix the relative position of the new type of tubal contrast device and the external cervical os and maintain a tight fit (fitting force ≥ 2N) is only a metal bracket. Due to the limitations of volume, weight and cost, the metal bracket cannot be used once. There is a great safety risk in reusing metal brackets.

Therefore, there is an urgent need for a salpingograph that can be safely fixed.

Contents of the invention

The purpose of the utility model is to provide a fallopian tube contrast device with a holding force fixing structure, so as to solve the problem that a metal bracket is needed to fix the fallopian tube contrast device and there is a safety risk.

The embodiment of the utility model relates to a fallopian tube imaging device with a force-holding and fixing structure, including: a cone, a force-bearing imaging rod and a force-holding and fixing structure;

The bottom of the cone is connected to one end of the load-bearing imaging rod;

The force-holding and fixing structure is arranged around the bottom of the cone, and is respectively connected to the outer surface of the cone and the outer surface of the load-bearing imaging rod; the force-holding and fixing structure is capable of propping up and returning shrinking structure;

The tip of the cone is provided with a contrast fluid outlet; the cone and the force-bearing imaging rod are provided with a contrast liquid tube that communicates with the contrast fluid outlet; the force-bearing The end of the contrast rod away from the cone is provided with a contrast liquid injection port in communication with the contrast liquid tube;

The force-bearing imaging rod is also provided with a propping pipeline in communication with the force-holding and fixing structure; the end of the force-bearing radiography rod away from the cone is provided with a propping pipeline in communication with the propping pipeline. connector;

The propped pipeline is located on the coaxial periphery of the contrast fluid tube.

In another preferred example, a negative pressure suction tube that communicates with each other is provided inside the cone and the force-bearing imaging rod, and the nozzle of the negative pressure suction tube is set on the outer surface of the cone, and located between the contrast fluid outflow port and the force-holding fixing structure; the end of the force-bearing contrast rod away from the cone is provided with a negative pressure suction joint communicated with the negative pressure suction tube;

The negative pressure suction tube is located on the coaxial periphery of the contrast fluid tube; the support pipeline is located on the coaxial periphery of the negative pressure suction tube.

In another preferred example, the cone and the force-bearing imaging rod are provided with a flushing pipeline that communicates with each other, and the nozzle of the flushing pipeline is set on the outer surface of the cone and is located on the Between the contrast fluid outflow port and the force-holding fixing structure; the end of the force-bearing contrast rod away from the cone is provided with a flushing return port in communication with the flushing pipeline;

The flushing pipeline is located on the coaxial periphery of the contrast liquid tube; the support pipeline is located on the coaxial periphery of the flushing pipeline.

In another preferred example, the nozzle of the flushing circuit is not on the same plane as the outflow port of the contrast fluid.

In another preferred example, the force-holding and fixing structure includes: a force-holding part and a fixing part;

The force-holding part and the fixing part are integrally formed, or the force-holding part and the fixing part are separate structures.

In another preferred example, the outer surface of the cone is an inner concave arc surface.

In another preferred example, the force-bearing imaging rod is a hard catheter.

In another preferred example, the load-bearing contrast rod includes an outer catheter and at least one inner catheter with a diameter smaller than the outer catheter;

The outer conduit and the inner conduit are coaxially nested together.

In another preferred example, the contrast liquid injection port, the propping joint, the negative pressure suction joint and the flushing backflow port are all backflow preventing structures.

In another preferred example, the anti-reflux structure includes: a piston switch, a one-way valve and an anti-reflux valve.

It should be understood that within the scope of the present utility model, the above-mentioned technical features of the present utility model and the technical features specifically described in the following (such as embodiments) can be combined with each other to form new or preferred technical solutions . Due to the limited space, I won't go into details here.

Compared with the prior art, the utility model implementation mode has the main difference and its effects in that:

The utility model provides a fallopian tube imaging device with a force-holding and fixing structure, which comprises: a cone, a force-bearing imaging rod and a force-holding and fixing structure. In the process of clinical use, the contrast device does not need to enter the uterine cavity, but only needs to be inserted into the vagina and placed at the external os of the cervix to inject contrast solution for development, which can completely display the entire uterine cavity, and uterine deformities, adhesions, polyps, etc. The lesions are fully presented, allowing the fallopian tubes to be visualized naturally, which is conducive to diagnosis, and the patient has no pain; the curvature of the outer surface of the cone matches the size of the cervix, and they fit together to achieve sealing and avoid the impact of the cone entering the uterine cavity. The holding part and the fixing part of the force-fixed structure keep the fallopian tube contrast device and the external os of the cervix in a stable fit state.

Description of drawings

Fig. 1 is a cross-sectional view of a fallopian tube contrast device with a holding force fixing structure in the first embodiment of the present invention;

Fig. 2 is a sectional view of a force-holding fixing structure in the first embodiment of the present invention;

Fig. 3 is a sectional view of a cone in the first embodiment of the present invention;

Fig. 4 is a left side view of a fallopian tube contrast device with a holding force fixing structure in the first embodiment of the present utility model.

It should be understood that the drawings of the present utility model are for illustrative purposes only, and unless otherwise stated, the drawings are not shown to scale.

Reference signs:

1. Conical body; 2. Force-bearing radiography rod; 3. Holding force fixing structure (31. Holding part, 32. Fixing part); 4. Contrast fluid pipe; 5. Return pipeline; 6. Contrast liquid injection port; Holding force fixed structure prop up the joint; 9 negative pressure suction joints; 10 negative pressure suction pipe.

Detailed ways

In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

In order to make the purpose, technical solutions and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

The first embodiment of the utility model relates to a fallopian tube imaging device with a holding force fixing structure.

Fig. 1 is a structural schematic diagram of the fallopian tube contrast device with a holding force fixing structure.

First of all, it should be noted that, as used herein, the term "proximal end" refers to the end of the contrast device that is close to the user when in use, and "distal end" refers to the end of the contrast device that is close to the patient.

Specifically, as shown in FIG. 1 , the salpingograph with a force-holding and fixing structure includes: a cone 1 , a force-bearing imaging rod 2 and a force-holding and fixing structure 3 ;

The structure of the cone 1 includes: a tip, a bottom and an outer surface. The tip and the bottom are the opposite ends of the cone 1, and the outer side is the part of the outer surface between the tip and the bottom.

Further, preferably, the outer surface of the cone body 1 is an inner concave arc surface.

According to the cervical os size data of clinical statistics, the outer surface of the cone 1 is designed to achieve sealing with the cervix, and avoid the impact of the cone 1 entering the uterine cavity on the accuracy of the inspection and the occurrence of damage to the patient.

The bottom of the cone 1 is connected to one end of the load-bearing imaging rod 2;

The force-holding and fixing structure 3 is arranged around the bottom of the cone body 1, and is respectively connected with the outer surface of the cone body 1 and the outer surface of the force-bearing imaging rod 2; the force-holding and fixing structure 3 is a supportable and retractable structure.

The tip of the cone 1 is provided with a contrast fluid outlet 11; the cone 1 and the force-bearing imaging rod 2 are provided with a contrast liquid tube 4 that communicates with each other and communicates with the contrast fluid outlet 11; the force-bearing imaging rod 2 is away from the One end of the cone 1 is provided with a contrast fluid injection port 6 communicating with the contrast fluid tube 4;

In clinical use, contrast fluid is injected through the contrast fluid injection port 6 , and the contrast fluid flows through the contrast fluid injection port 6 and the contrast fluid tube 4 through the cone 1 and flows out from the contrast fluid outlet 11 .

The force-bearing imaging rod 2 is also provided with a propping pipeline connected with the holding force fixing structure 3; the end of the force-bearing imaging rod 2 away from the cone 1 is provided with a propping joint 8 communicating with the propping pipeline;

The propped pipeline is located on the coaxial periphery of the contrast liquid tube 4 .

As shown in FIG. 1 , a plurality of return pipelines 5 are provided on the coaxial periphery of the contrast liquid tube 4 , and the supporting pipeline may be one of the return pipelines 5 .

Preferably, the force-bearing imaging rod 2 is a straight hard catheter.

Further, preferably, the force-bearing imaging rod 2 includes an outer catheter and at least one inner catheter with a diameter smaller than the outer catheter.

The outer conduit and the inner conduit are coaxially nested together.

As shown in Figure 1, the innermost inner catheter is the contrast liquid tube 4; the pipeline between adjacent inner catheters and between the inner catheter and the outer catheter is the return pipeline 5 shown in Figure 1 .

The holding force fixing structure 3 is a structure that can be propped up and retracted, and the holding force fixing structure 3 can be propped up or retracted by propping up the pipeline and the propping up joint 8 .

In a preferred example, the holding and fixing structure 3 may be a capsule structure. During clinical use, the propping joint 8 is connected to the syringe to inflate, and the holding force fixing structure 3 can be propped up through the propping pipeline. Before use or after use, connect the syringe to the propping joint 8 to pump air, and the holding force fixing structure 3 can be retracted by propping up the pipeline, so that the oviduct contrast device can smoothly enter the human body or be taken out from the human body .

In another preferred example, the force-holding and fixing structure 3 can also be a structure that can be propped up and retracted like an umbrella. The propped up and retracted structure similar to an umbrella is a common structure in daily life, and will not be repeated here.

When the force-holding and fixing structure 3 is propped up, the force-holding and fixing structure 3 may include two parts: a force-holding part 31 and a fixing part 32. In this application, the force-holding part 31 is designed according to the clinical statistics of the cervical os size data, so that the outer curvature of the force-holding part 31 can fit closely with the surface of the external os of the cervix and the inner surface of the vaginal wall and be clamped in the middle of the tissue, realizing Fitting force ≥ 2N, to achieve the positioning and fixation of the fallopian tube contrast device. The fixing part 32 fixes the cone body 1 and the holding part 31 to prevent the fallopian tube contrast device from shaking and being unstable. The fixed part 32 is designed according to the vaginal size data of clinical statistics, so that the outer curvature of the fixed part 32 can be clamped at the coaxial center of the vagina by the inner surface of the vagina, so as to avoid the phenomenon of leakage due to non-coaxial imaging tubes.

As shown in FIG. 2 , the cut surface of the holding and fixing structure 3 is similar to a heart shape, the outer radius R of the holding portion 31 is 10-60 mm, and the diameter H of the fixing portion 32 is 3-10 mm.

Further, preferably, the holding portion 31 and the fixing portion 32 may be integrally formed or separated.

In a preferred example, the conical body 1 and the force-bearing imaging rod 2 are provided with a negative pressure suction tube 10 that communicates with each other, and the nozzle of the negative pressure suction tube 10 is located on the outer surface of the Between the contrast fluid outlet 11 and the force-holding fixing structure 3 ; the end of the force-bearing imaging rod 2 away from the cone 1 is provided with a negative pressure suction joint 9 communicating with the negative pressure suction tube 10 .

The negative pressure suction tube 10 is located on the coaxial periphery of the contrast liquid tube 4 ;

As shown in FIG. 1 , a plurality of return pipelines 5 are provided on the coaxial periphery of the contrast liquid tube 4 , and the part of the negative pressure suction tube 10 inside the force-bearing imaging rod can also be one of the return pipelines 5 .

In clinical use, the negative pressure suction joint 9 is connected to the syringe for suction, and the gas between the holding force fixing structure 3, the cone 1, the surface of the external os of the cervix and the inner surface of the vaginal wall can be removed through the negative pressure suction tube 10. After suction, the holding force fixing structure 3 is sealed and wrapped in the fornix of the external os of the cervix through negative pressure, so as to increase the bonding force of ≥ 2N on the basis of the original bonding force, so as to achieve better positioning and fixing.

In a preferred example, the cone body 1 and the force-bearing imaging rod 2 are provided with a flushing pipeline that communicates with each other. Between the force-holding and fixing structures 3; the end of the force-bearing imaging rod 2 away from the cone 1 is provided with a flushing return port 7 communicating with the flushing pipeline;

The flushing pipeline is located on the coaxial periphery of the contrast liquid tube 4 ; the support pipeline is located on the coaxial periphery of the flushing pipeline.

As shown in FIG. 1 , a plurality of return pipelines 5 are provided on the coaxial periphery of the contrast liquid communication tube 4 , and the flushing pipeline may be one of the return pipelines 5 .

In a preferred example, the nozzle of the flushing circuit is not on the same plane as the contrast fluid outlet 11 .

During clinical use, the uterine cavity can be cleaned while holding the fallopian tube contrast device firmly fixed.

In a preferred example, the contrast liquid injection port 6 , the support joint 8 , the negative pressure suction joint 9 and the flushing return port 7 are all backflow preventing structures.

Preferably, the anti-reflux structure may include: a piston switch, a one-way valve, an anti-reflux valve, and the like.

In a preferred example, the nozzle of the return pipeline 5 on the outer surface of the cone 1 (including: the nozzle of the propped pipeline, the nozzle of the negative pressure suction pipe and the nozzle of the flushing pipeline) can be a cone A large opening around the central axis of the shape body 1 may also be several small openings spaced apart from each other around the central axis of the cone body 1 .

The nozzles of the return pipeline shown in FIG. 4 are several small openings spaced apart from each other around the central axis of the cone 1 .

Preferably, the length L1 of these small openings is 3.8±2mm, and the width L2 of the return line is 1±0.5mm.

In addition, as shown in FIG. 3 , the outer diameter d of the contrast fluid outlet 11 is 1.8±1mm; the distance D between the contrast fluid outlet 11 and the nearest nozzle of the return line is 1±0.8mm.

The main advantages of the utility model include:

(a) Safety: The holding force fixing structure is combined with a new type of fallopian tube contrast device, and the safety problem caused by the repeated use of the holding force fixing structure can be avoided by one-time use.

(b) Convenient uterine cavity cleaning: The combination of the holding force fixed structure and multiple return circuits can realize convenient uterine cavity cleaning.

(c) The contrast device has a simple structure, can be mastered quickly, and can meet the needs of most people.

It should be noted that in the claims and description of this patent, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between such entities or operations is implied. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, those skilled in the art will understand that various changes in form and details may be made therein without Deviate from the spirit and scope of the present utility model.

Claims (10)

1. A salpingography device with a force-holding fixed structure, comprising: a cone, a force-bearing imaging rod and a force-holding fixed structure; The bottom of the cone is connected to one end of the load-bearing imaging rod; The force-holding and fixing structure is arranged around the bottom of the cone, and is respectively connected to the outer surface of the cone and the outer surface of the load-bearing imaging rod; the force-holding and fixing structure is capable of propping up and returning shrinking structure; The tip of the cone is provided with a contrast fluid outlet; the cone and the force-bearing imaging rod are provided with a contrast liquid tube that communicates with the contrast fluid outlet; the force-bearing The end of the contrast rod away from the cone is provided with a contrast liquid injection port in communication with the contrast liquid tube; The force-bearing imaging rod is also provided with a propping pipeline in communication with the force-holding and fixing structure; the end of the force-bearing radiography rod away from the cone is provided with a propping pipeline in communication with the propping pipeline. connector; The propped pipeline is located on the coaxial periphery of the contrast liquid tube. 2. The fallopian tube radiography device with a force-holding and fixed structure according to claim 1, wherein a negative pressure suction tube connected to each other is provided in the cone and the force-bearing radiography rod, and the negative pressure suction tube The nozzle of the suction pipe is arranged on the outer surface of the cone, and is located between the outflow port of the contrast fluid and the holding force fixing structure; the end of the force-bearing imaging rod away from the cone is provided with a The negative pressure suction joint connected with the negative pressure suction pipe; The negative pressure suction tube is located on the coaxial periphery of the contrast fluid tube; the support pipeline is located on the coaxial periphery of the negative pressure suction tube. 3. The fallopian tube imaging device with a force-holding and fixed structure according to claim 2, wherein a flushing pipeline interconnected with each other is arranged inside the cone and the force-bearing imaging rod, and the tube of the flushing pipeline The mouth is provided on the outer surface of the cone, and is located between the contrast fluid outflow port and the force-holding fixing structure; the end of the force-bearing imaging rod away from the cone is provided with the flushing tube The flushing return port connected by the road; The flushing pipeline is located on the coaxial periphery of the contrast liquid tube; the support pipeline is located on the coaxial periphery of the flushing pipeline. 4 . The fallopian tube imaging device with a holding force fixing structure according to claim 3 , wherein the mouth of the flushing pipeline is not on the same plane as the outflow port of the contrast fluid. 5 . 5. The fallopian tube contrast device with a force-holding and fixing structure according to claim 1, wherein the force-holding and fixing structure comprises: a force-holding part and a fixing part; The force-holding part and the fixing part are integrally formed, or the force-holding part and the fixing part are separate structures. 6. The fallopian tube contrast device with a force-holding and fixing structure according to any one of claims 1-5, wherein the outer surface of the cone is an inner concave arc surface. 7. The fallopian tube imaging device with a force-holding and fixing structure according to claim 6, wherein the force-bearing imaging rod is a hard catheter. 8. The fallopian tube imaging device with a force-holding and fixed structure according to claim 7, wherein the force-bearing radiography rod comprises an outer catheter and at least one inner catheter whose diameter is smaller than the outer catheter; The outer conduit and the inner conduit are coaxially nested together. 9. The fallopian tube contrast device with a holding force fixing structure according to claim 3, characterized in that, the contrast liquid injection port, the propped joint, the negative pressure suction joint and the flushing return port Both are anti-backflow structure. 10 . The fallopian tube contrast device with a holding force fixing structure according to claim 9 , wherein the anti-reflux structure comprises: a piston switch, a one-way valve and an anti-reflux valve. 11 .