Fallopian tube angiographic catheter with good insertion stability

Abstract

The utility model discloses a fallopian tube angiography catheter with good insertion stability, which comprises a catheter, a plugging head arranged at the front end of the catheter, a first drainage cavity arranged in the catheter, a second drainage cavity arranged in the plugging head, an insertion tube arranged at the front end of the plugging head, and a rear port of the second drainage cavity in butt joint with the front end of the first drainage cavity. A plurality of annular fins located in the radial direction are arranged on the side face of the periphery of the insertion pipe at intervals in the length direction. When the insertion tube is inserted into a cervical canal for use, the annular fins play a role in supporting and tensioning the inner side wall surface of the cervical canal, so that the frictional resistance between the insertion tube and the cervical canal is remarkably improved, and the slipping phenomenon of the angiographic catheter in the use process is effectively prevented; in the radiography operation process, medical operators do not need to hold the radiography catheter in the whole process or do not need to additionally arrange a fixing support used for supporting the radiography catheter, so that the radiography operation difficulty of the uterus fallopian tube is effectively reduced, meanwhile, the physical strength of the medical operators is saved, and the use experience effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a good hysterosalpingography catheter of splicing stability. BACKGROUND

[0002] Due to the influence of environment, social factors and life style, the main physiological factors affecting infertility are uterus, oviduct, ovary and sperm, and oviduct infertility accounts for 20% to 40% of the number of infertility diseases. At present, hysterosalpingography is the main examination method for diagnosing infertility of married women, and through the examination, oviduct lesions causing infertility can be found.

[0003] Hysterosalpingography catheter is the main instrument for inputting contrast agent into the uterine cavity oviduct, and the hysterosalpingography catheters currently used in clinical mainly include balloon type and cone head type. The balloon type uses the inflated balloon to block the cervical port, which has the defects of obvious patient pain, easy to cover the lesions and difficult intubation. The cone head type uses the conical head at the front end of the catheter to block the cervical external orifice for hysterosalpingography, which does not have the above defects of the balloon type, so the cone head type is more widely used.

[0004] The cone head type hysterosalpingography catheter currently used is directly inserted into the cervical port with the front end of the conical guide head, and then inserted forward, and the conical body of the conical guide head is used to block the cervical external orifice, and then the contrast agent is injected into the uterus and oviduct through the catheter connector at the rear end of the catheter body. Such cone head type hysterosalpingography catheter is easy to slip off from the cervical port during the injection of contrast agent into the uterus and oviduct, resulting in leakage of contrast agent, and even causing failure of hysterosalpingography. In order to prevent the cone head type hysterosalpingography catheter from falling off from the cervical port, the medical staff often needs to hold the catheter body with hands, or needs to set an additional fixing support to support the catheter body, which increases the operation difficulty of hysterosalpingography surgery, and the medical staff consumes a lot of physical strength. Therefore, the utility model provides a hysterosalpingography catheter with good splicing stability to solve the above technical problems. SUMMARY

[0005] The utility model discloses a fallopian tube radiography catheter with good plugging stability, which overcomes the defects in the prior art and has the advantages that the insertion tube at the front end of the plugging head is inserted into the cervical canal, and then the insertion tube is continuously inserted forward, the outer side surface of the front end of the plugging head is used to block the external cervical os, and then the rear end of the liquid guide tube is used to inject medicine, the contrast medium is injected into the uterus and the fallopian tube through the catheter for radiography, the outer peripheral side surface of the insertion tube is provided with a plurality of annular fins, when the insertion tube is inserted into the cervical canal, the annular fins support and tension the inner side wall surface of the cervical canal, the frictional resistance between the outer peripheral side surface of the insertion tube and the inner wall surface of the cervical canal is significantly improved, and thus the radiography catheter is effectively prevented from slipping during use, the medical staff does not need to hold the radiography catheter or set an additional fixing support for supporting the radiography catheter during the radiography operation, the difficulty of the radiography operation of the uterus and the fallopian tube is effectively reduced, the physical strength of the medical staff is saved, and the use experience is good.

[0006] To achieve the above object, the utility model discloses a fallopian tube radiography catheter with good plugging stability, which overcomes the defects in the prior art and has the advantages that the insertion tube at the front end of the plugging head is inserted into the cervical canal, and then the insertion tube is continuously inserted forward, the outer side surface of the front end of the plugging head is used to block the external cervical os, and then the rear end of the liquid guide tube is used to inject medicine, the contrast medium is injected into the uterus and the fallopian tube through the catheter for radiography, the outer peripheral side surface of the insertion tube is provided with a plurality of annular fins, when the insertion tube is inserted into the cervical canal, the annular fins support and tension the inner side wall surface of the cervical canal, the frictional resistance between the outer peripheral side surface of the insertion tube and the inner wall surface of the cervical canal is significantly improved, and thus the radiography catheter is effectively prevented from slipping during use, the medical staff does not need to hold the radiography catheter or set an additional fixing support for supporting the radiography catheter during the radiography operation, the difficulty of the radiography operation of the uterus and the fallopian tube is effectively reduced, the physical strength of the medical staff is saved, and the use experience is good.

[0007] To achieve the above object, the utility model discloses a fallopian tube radiography catheter with good plugging stability, which overcomes the defects in the prior art and has the advantages that the insertion tube at the front end of the plugging head is inserted into the cervical canal, and then the insertion tube is continuously inserted forward, the outer side surface of the front end of the plugging head is used to block the external cervical os, and then the rear end of the liquid guide tube is used to inject medicine, the contrast medium is injected into the uterus and the fallopian tube through the catheter for radiography, the outer peripheral side surface of the insertion tube is provided with a plurality of annular fins, when the insertion tube is inserted into the cervical canal, the annular fins support and tension the inner side wall surface of the cervical canal, the frictional resistance between the outer peripheral side surface of the insertion tube and the inner wall surface of the cervical canal is significantly improved, and thus the radiography catheter is effectively prevented from slipping during use, the medical staff does not need to hold the radiography catheter or set an additional fixing support for supporting the radiography catheter during the radiography operation, the difficulty of the radiography operation of the uterus and the fallopian tube is effectively reduced, the physical strength of the medical staff is saved, and the use experience is good.

[0008] Preferably, the plugging head further comprises a cone body, the insertion tube is vertically fixed on a small-diameter end surface of the cone body, a large-diameter end surface of the cone body is provided with a liquid guide tube mounting groove one penetrating the second rear port of the liquid guide cavity, and the front end of the liquid guide tube is embeddedly and fixedly arranged in the liquid guide tube mounting groove one.

[0009] Further preferably, the plugging head is an integral forming piece, and the material is a medical elastic material.

[0010] Further preferably, the medical elastic material is one of a medical elastic silica gel material and a medical nylon material.

[0011] Further preferably, the rear end of the liquid guide tube is provided with a catheter connector, and the catheter connector is internally provided with a liquid injection hole penetrating and connecting the first rear port of the liquid guide cavity.

[0012] Further preferably, the catheter connector is provided with a liquid guide tube mounting groove two on a front end surface thereof, and the rear end of the liquid guide tube is embeddedly and fixedly arranged in the liquid guide tube mounting groove two.

[0013] Further preferably, the front end of the liquid guide tube is gluedly and embeddedly and fixedly arranged in the liquid guide tube mounting groove one on the plugging head, and the rear end of the liquid guide tube is gluedly and embeddedly and fixedly arranged in the liquid guide tube mounting groove two on the catheter connector.

[0014] Further preferably, the catheter connector is a Luer connector.

[0015] The advantages and beneficial effects of the utility model lie in that:

[0016] 1. The utility model discloses a good insertion stability oviduct radiography catheter, when using, first, the insertion tube of the front end of the plugging head is inserted into the cervical canal, then continues to insert forward, the outside surface of the front end of the plugging head is used to block the external cervical os, after that, the medicine is injected through the rear end of the liquid guide pipe, the contrast medium is injected into the uterus and oviduct inside through the catheter to carry out radiography, wherein, a plurality of annular fins are arranged on the peripheral side of the insertion tube, when the insertion tube is inserted into the inside of the cervical canal, the plurality of annular fins play the supporting tension effect to the inside wall surface of the cervical canal, the friction resistance between the peripheral side of the insertion tube and the inside wall surface of the cervical canal is improved significantly, thereby effectively preventing the radiography catheter from slipping in the use process, the medical staff does not need to hold the radiography catheter or set the fixed support for supporting the radiography catheter in the whole process during the radiography operation process, thereby effectively reducing the radiography operation difficulty of the uterus oviduct, and the medical staff's physical strength is saved, and the use experience effect is good.

[0017] 2. In the uterus oviduct radiography, first, the insertion tube of the front end of the plugging head is inserted into the cervical canal, then continues to insert forward, the tapered outside surface of the tapering body front end is used to block the external cervical os, the plugging effect of the tapering body front end to the external cervical os is improved significantly, and the success probability of the radiography operation is improved.

[0018] 3. The front end of the liquid guide pipe is glued and embedded in the inside of the liquid guide pipe mounting groove one on the plugging head, and the rear end of the liquid guide pipe is glued and embedded in the inside of the liquid guide pipe mounting groove two on the catheter connector. The assembling mode between the liquid guide pipe and the plugging head and the catheter connector is simple, and the oviduct radiography catheter of the utility model can be prepared and implemented smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the structure schematic diagram of the utility model discloses a kind of insertion stability good oviduct radiography catheter;

[0020] Fig. 2 It is the longitudinal section view of the utility model along axial center line of a kind of insertion stability good oviduct radiography catheter.

[0021] In the drawing: 1, liquid guide pipe;2, plugging head;3, catheter connector;1-1, liquid guide cavity one;2-1, tapering body;2-2, insertion tube;2-3, annular fin;2-4, liquid guide cavity two;2-5, liquid guide pipe mounting groove one;3-1, liquid injection hole;3-2, liquid guide pipe mounting groove two. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] Embodiment

[0024] As Figs. 1-2 shown, the utility model is a kind of oviduct radiography catheter with good plug stability, including liquid guide pipe 1, the front end of the liquid guide pipe 1 is equipped with stopper 2, the inside of the liquid guide pipe 1 is equipped with through front and back end surface liquid guide cavity one 1-1, the inside of the stopper 2 is equipped with liquid guide cavity two 2-4, the front end of the stopper 2 has insertion tube 2-2, the rear end of the liquid guide cavity two 2-4 is opposite to the front end of liquid guide cavity one 1-1, the front end of liquid guide cavity two 2-4 is connected with insertion tube 2-2, the outer circumferential side of the insertion tube 2-2 is equipped with a plurality of annular fins 2-3 in radial direction along length direction.

[0025] Preferably, the stopper 2 further includes a conical body 2-1, the insertion tube 2-2 is vertically fixed on the small diameter end surface of the conical body 2-1, a liquid guide tube mounting groove one 2-5 is formed on the large diameter end surface of the conical body 2-1 and is in communication with the rear end of the liquid guide cavity two 2-4, and the front end of the liquid guide tube 1 is embedded and fixed in the liquid guide tube mounting groove one 2-5.

[0026] Further preferably, the stopper 2 is an integral molding member, and the material thereof is a medical elastic material.

[0027] Further preferably, the medical elastic material is one of a medical elastic silica gel material and a medical nylon material.

[0028] Further preferably, the rear end of the liquid guide tube 1 is provided with a catheter connector 3, and the catheter connector 3 is internally provided with a liquid injection hole 3-1 in communication with the rear end of the liquid guide cavity one 1-1.

[0029] Further preferably, the catheter connector 3 is provided with a liquid guide tube mounting groove two 3-2 on the front end surface thereof facing the liquid guide tube 1, and the rear end of the liquid guide tube 1 is embedded and fixed in the liquid guide tube mounting groove two 3-2.

[0030] Further preferably, the front end of the liquid guide tube 1 is glued and embedded and fixed in the liquid guide tube mounting groove one 2-5 on the stopper 2, and the rear end of the liquid guide tube 1 is glued and embedded and fixed in the liquid guide tube mounting groove two 3-2 on the catheter connector 3.

[0031] Further preferably, the catheter connector 3 is a luer connector.

[0032] The use principle of the oviduct radiography catheter with good plug stability of the utility model is as follows:

[0033] In the hysterosalpingography, the insertion tube 2-2 at the front end of the plug head 2 is inserted into the cervical canal, and then is continuously inserted forward to block the external cervical os by the tapered outer side surface of the tapered body 2-1 at the front end, and the several annular fins 2-3 at the outer peripheral side surface of the insertion tube 2-2 support and tension the inner side wall surface of the cervical canal and prevent slipping, and then the plug head 2 is injected through the catheter connector 3 at the rear end of the liquid guide tube 1, and the contrast agent is injected into the uterus and the oviduct to perform the hysterosalpingography.

[0034] The utility model discloses a kind of oviduct radiography catheters with good plugging stability, when using, first the insertion tube at the front end of the plug head is inserted into the cervical canal, and then is continuously inserted forward to block the external cervical os by the outer side surface at the front end of the plug head, and then the plug head is injected through the rear end of the liquid guide tube, and the contrast agent is injected into the uterus and the oviduct to perform the hysterosalpingography, wherein, by being equipped with several annular fins at the outer peripheral side surface of the insertion tube, when the insertion tube is inserted into the cervical canal, the several annular fins support and tension the inner side wall surface of the cervical canal, significantly improve the frictional resistance between the outer peripheral side surface of the insertion tube and the inner wall surface of the cervical canal, so that effectively prevent the radiography catheter from slipping during use;During the hysterosalpingography operation, medical staff does not need to hold the radiography catheter all the time or additionally set fixed support for supporting the radiography catheter, so as to effectively reduce the difficulty of the hysterosalpingography operation, while helping to save the physical strength of medical staff, and good use experience effect.

[0035] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the technical principle of the utility model, under the premise, can make several improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A hysterosalpingography catheter having good intubation stability, characterized by comprising: The utility model provides a liquid guide pipe, the front end of the liquid guide pipe (1) is equipped with a sealing head (2), the inside of the liquid guide pipe (1) is equipped with a liquid guide cavity (1-1) that penetrates the front and back end faces, the inside of the sealing head (2) is equipped with a liquid guide cavity (2-4), the front end of the sealing head (2) has an insertion tube (2-2), the rear end of the liquid guide cavity (2-4) is connected with the front end of the liquid guide cavity (1-1), the front end of the liquid guide cavity (2-4) is connected with the insertion tube (2-2) in penetration, the outer circumferential side of the insertion tube (2-2) is equipped with a plurality of annular fins (2-3) in the radial direction along the length direction.

2. The hysterosalpingography catheter according to claim 1, wherein The sealing head (2) further comprises a conical body (2-1), the insertion tube (2-2) is vertically fixed on the small diameter end face of the conical body (2-1), the large diameter end face of the conical body (2-1) is provided with a liquid guide pipe mounting groove (2-5) that penetrates the rear end of the liquid guide cavity (2-4), and the front end of the liquid guide pipe (1) is embedded and fixed in the liquid guide pipe mounting groove (2-5).

3. The hysterosalpingography catheter according to claim 2, wherein The sealing head (2) is an integral molding part, and the material is a medical elastic material.

4. The hysterosalpingography catheter according to claim 3, wherein The medical elastic material is one of a medical elastic silica gel material and a medical nylon material.

5. The hysterosalpingography catheter according to claim 4, wherein The rear end of the liquid guide pipe (1) is provided with a catheter connector (3), the inside of the catheter connector (3) is provided with a liquid injection hole (3-1) that penetrates and connects the rear end of the liquid guide cavity (1-1).

6. The hysterosalpingography catheter according to claim 5, wherein The front end face of the catheter connector (3) is provided with a liquid guide pipe mounting groove (3-2) that faces the liquid guide pipe (1), and the rear end of the liquid guide pipe (1) is embedded and fixed in the liquid guide pipe mounting groove (3-2).

7. The hysterosalpingography catheter according to claim 6, wherein The front end of the liquid guide pipe (1) is glued and embedded and fixed in the liquid guide pipe mounting groove (2-5) on the sealing head (2), and the rear end of the liquid guide pipe (1) is glued and embedded and fixed in the liquid guide pipe mounting groove (3-2) on the catheter connector (3).

8. The hysterosalpingography catheter according to claim 7, wherein The catheter connector (3) is a luer connector.

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