CN211132658U

CN211132658U - Controllable pressure injector for hysterosalpingography

Info

Publication number: CN211132658U
Application number: CN201921322269.6U
Authority: CN
Inventors: 鲁景元; 徐文健; 彭义盛
Original assignee: Nanjing Maternity and Child Healthcare Hospital
Current assignee: Nanjing Maternity and Child Healthcare Hospital
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-07-31
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a controllable pressure syringe for hysterosalpingography, including medical force pump, shell and syringe, medical force pump connects in the one end of connecting pipe, medical force pump is equipped with discharge valve with the top of the junction of connecting pipe, the other end of connecting pipe can be dismantled and connect in the shell, top in the shell is equipped with the piston, connect in syringe core bar fixing base through the connecting rod below the piston, the below of syringe core bar fixing base is equipped with the syringe core bar, the below of syringe core bar is equipped with the syringe, the syringe includes syringe outer sleeve and syringe outer sleeve draw-in groove, syringe outer sleeve draw-in groove is connected in the inside below of shell, the inside of syringe is provided with the contrast medium, the radiography pipe is installed to the lower extreme of syringe. The utility model can be used for different patients, and only the disposable injector needs to be replaced, thereby not only meeting the clinical aseptic requirement, but also saving the use cost by a great degree.

Description

Controllable pressure injector for hysterosalpingography

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a controllable pressure injector for hysterosalpingography.

Background

The incidence rate of female infertility in common people can reach 9-18%, and the tendency of female infertility is continuously increased. With the release of the national birth policy, the diagnosis and treatment of female infertility become one of the main hot problems of current gynecology in China. Fallopian tube factors are one of the major causes of infertility in women. At present, the imaging examination for diagnosing female infertility mainly comprises uterus and fallopian tube ultrasonic examination, pelvic cavity nuclear magnetic resonance scanning, uterus and fallopian tube radiography and the like. The hystero-salpingography is an important screening means for female infertility of uterus and fallopian tube due to low cost and small wound. In a conventional hysterosalpingography procedure, after the intubation of the uterine cavity is completed, the operator manually injects a contrast medium into the uterine cavity through a contrast catheter using a common disposable syringe. The contrast agent flows into the uterine cavity through the catheter, then enters the oviduct cavity and finally flows into the pelvic cavity. A diagnostician makes a diagnosis and evaluation on the shape/density of a uterine cavity, the smoothness degree of an oviduct, the pelvic adhesion condition and the like by observing the image data of the advancing process of the contrast agent, and the above indexes are greatly influenced by the pushing pressure of the contrast agent. The manual injection pressure of the contrast medium may be different among different operators, even when the same operator operates different patients, and the contrast medium cannot be quantified and unified, which is the root cause for further improving the diagnostic accuracy of the hystero-salpingography. Meanwhile, the pressure value cannot be objectively mastered by manual injection, so that venous/lymphatic return of iodized oil, pulmonary embolism and the like caused by overlarge injection pressure occur. Moreover, the inconsistency and the quantification of the injection pressure of the contrast agent also enable contrast images to obtain inconsistent diagnosis conclusions in different medical institutions, and the consultation value is reduced. Finally, the development of relevant clinical scientific research activities is limited to a great extent without uniform and quantized bolus injection pressure.

Therefore, a contrast agent injection device for oviduct radiography with controllable pressure and low cost needs to be researched.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controllable pressure syringe for hysterosalpingography, in order to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a controllable pressure syringe is used in uterus oviduct radiography, includes medical force pump, shell and syringe, medical force pump connects in the one end of connecting pipe, medical force pump is equipped with discharge valve with the top of the junction of connecting pipe, the other end of connecting pipe can be dismantled and connect in the shell, top in the shell is equipped with the piston, the piston below is connected in syringe core bar fixing base through the connecting rod, the below of syringe core bar fixing base is equipped with the syringe core bar, the below of syringe core bar is equipped with the syringe, the syringe includes syringe outer sleeve and syringe outer sleeve draw-in groove, syringe outer sleeve draw-in groove connects in the inside below of shell, the inside of syringe is provided with the contrast medium, the contrast pipe is installed to the lower extreme of.

Preferably, the medical pressure pump is provided with a pressure gauge, and the rear end of the medical pressure pump is provided with a push injection handle.

Preferably, the upper part of the injector is clamped in a clamping groove of an outer sleeve of the injector below the shell.

Preferably, the diameter of the fixed seat of the syringe core rod is smaller than that of the shell, and the diameter of the fixed seat of the syringe core rod is larger than that of the syringe core rod.

Preferably, the diameter of the piston is the same as the diameter of the housing.

Preferably, the housing and the piston are both cylindrical in configuration.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a feasible solution with simple operation and low cost by controllable and quantitative injection pressure of the contrast agent in hysterosalpingography, which can improve the diagnosis accuracy and reduce the incidence of complications, and has higher clinical popularization value in the later period; in order to stably and accurately control the injection pressure of the contrast agent, the pressure pump adopts a precession mode, and in the process of injecting the contrast agent in a precession mode, the numerical value of a pressure gauge is observed, and the pressure value is adjusted and stabilized at a required pressure value by changing the precession speed; the device can be used for different patients, and only the disposable syringe needs to be replaced, thereby not only meeting the clinical aseptic requirement, but also saving the use cost to a great extent.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the structure of the syringe of the present invention;

fig. 3 is a front view of the medical pressure pump of the present invention.

In the figure: 1. an exhaust valve; 2. a medical pressure pump; 3. a connecting pipe; 4. a piston; 5. a housing; 6. a syringe core rod; 7. a syringe core rod fixing seat; 8. a clamping groove of an outer sleeve of the injector; 9. an outer syringe sleeve; 10. an injector; 11. a contrast agent; 12. a contrast catheter; 13. a connecting rod; 14. a pressure gauge; 15. a push injection handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a controllable pressure syringe is used in uterus oviduct radiography, including medical force pump 2, shell 5 and syringe 10, medical force pump 2 is connected in the one end of connecting pipe 3, the top of medical force pump 2 and the junction of connecting pipe 3 is equipped with discharge valve 1, the other end of connecting pipe 3 can be dismantled and connect in shell 5, top in the shell 5 is equipped with piston 4, connect in syringe core bar fixing base 7 through connecting rod 13 below piston 4, the below of syringe core bar fixing base 7 is equipped with syringe core bar 6, the below of syringe core bar 6 is equipped with syringe 10, syringe 10 includes syringe outer sleeve 9 and syringe outer sleeve draw-in groove 8, syringe outer sleeve 8 is connected in the inside below of shell 5, the inside of syringe 10 is provided with contrast medium 11, contrast pipe 12 is installed to the lower extreme of syringe 10.

Further, a pressure gauge 14 is arranged on the medical pressure pump 2, a push injection handle 15 is arranged at the rear end of the medical pressure pump 2, the volume of the medical pressure pump 2 is 20-30ml, and the pressure gauge 14 displays the pressure range of 0-100 Kpa.

Furthermore, the upper part of the injector 10 is clamped in an injector outer sleeve clamping groove 8 at the lower part of the shell 5.

Further, the diameter of the syringe core rod fixing seat 7 is smaller than that of the shell 5, and the diameter of the syringe core rod fixing seat 7 is larger than that of the syringe core rod 6.

Further, the diameter of the piston 4 is the same as the diameter of the housing 5.

Further, the housing 5 and the piston 4 are each of a cylindrical configuration.

The working principle is as follows: when the injector is used, the injector 10 is used for extracting the contrast medium 11, the air in the injector 10 is completely exhausted and then is embedded into the clamping groove 8 of the outer sleeve of the injector, the exhaust valve 1 is opened, the fixed seat 7 of the injector core rod is pulled down to be tightly attached to the tail end of the injector core rod 6, the exhaust valve 1 is closed, the air injected by the medical pressure pump 2 flows through the connecting pipe 3 and then enters the cavity of the piston 4, the pressure is conducted through the piston 4 → the connecting rod 13 → the fixed seat 7 of the injector core rod → the injector core rod 6, and then the contrast medium 11 in the injector 10 is injected into the uterine cavity of a. In order to smoothly and accurately control the injection pressure of the contrast medium 11, the medical pressure pump 2 adopts a screw-in mode, and during the process of screwing in the injection of the contrast medium 11, the numerical value of the pressure gauge 14 is observed, and the pressure value is adjusted and stabilized at the required pressure value by changing the screw-in speed. The device can be used for different patients, only the disposable syringe 10 needs to be replaced, thereby not only meeting the clinical aseptic requirement, but also saving the use cost to a great extent, the device provides a feasible solution with simple operation and low cost for realizing controllable and quantitative injection pressure of the contrast agent 11 in hysterosalpingography, and has higher later clinical popularization value, the utility model can also be applied to other medical behaviors needing constant pressure injection, the shape and size of the utility model can be adjusted according to the clinical requirements and the specification of the matched injector 10, but the internal structure and principle are not changed, the utility model is used in hysterosalpingography, the controllable and quantitative injection pressure of the contrast agent 11 provides a feasible solution with simple operation and low cost, can improve the diagnosis accuracy and reduce the incidence rate of complications, and has higher clinical popularization value in the later period.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a controllable pressure syringe for hysterosalpingography, includes medical force pump (2), shell (5) and syringe (10), its characterized in that, medical force pump (2) are connected in the one end of connecting pipe (3), medical force pump (2) are equipped with discharge valve (1) with the top of the junction of connecting pipe (3), the other end of connecting pipe (3) can be dismantled and connect in shell (5), top in shell (5) is equipped with piston (4), connect in syringe core bar fixing base (7) through connecting rod (13) below piston (4), the below of syringe core bar fixing base (7) is equipped with syringe core bar (6), the below of syringe core bar (6) is equipped with syringe (10), syringe (10) include syringe outer sleeve (9) and syringe outer sleeve draw-in groove (8), the syringe outer sleeve clamping groove (8) is connected to the lower portion of the interior of the shell (5), a contrast agent (11) is arranged in the syringe (10), and a contrast catheter (12) is installed at the lower end of the syringe (10).

2. The controllable pressure syringe for hysterosalpingography according to claim 1, wherein: the medical pressure pump (2) is provided with a pressure gauge (14), and the rear end of the medical pressure pump (2) is provided with a push injection handle (15).

3. The controllable pressure syringe for hysterosalpingography according to claim 1, wherein: the upper part of the injector (10) is clamped in an injector outer sleeve clamping groove (8) below the shell (5).

4. The controllable pressure syringe for hysterosalpingography according to claim 1, wherein: the diameter of the injector core rod fixing seat (7) is smaller than that of the shell (5), and the diameter of the injector core rod fixing seat (7) is larger than that of the injector core rod (6).

5. The controllable pressure syringe for hysterosalpingography according to claim 1, wherein: the diameter of the piston (4) is the same as that of the shell (5).

6. The controllable pressure syringe for hysterosalpingography according to claim 1, wherein: the shell (5) and the piston (4) are both cylindrical structures.