Spring ring plugging device for fallopian tube embolism

Abstract

The utility model provides a fallopian tube embolism spring ring plugging device. Comprising a guide wire, a micro catheter, an embolism spring ring, an inner catheter and an outer catheter, the inner catheter is sleeved with the outer catheter, a bend is arranged on the front portion of the inner catheter, the angle of the bend is matched with the position between the uterus and the fallopian tube of the human body, the inner catheter can reciprocate along an inner hole of the outer catheter, and the front end of the inner catheter extends into the fallopian tube of the human body; the microcatheter can be sleeved in the inner catheter, the diameter of an inner hole of the microcatheter can only accommodate one embolism spring ring, the guide wire is sleeved in the microcatheter, and the outer diameter of the guide wire is consistent with that of the embolism spring ring. After the fallopian tube embolism spring ring plugging device is adopted, the success rate of a fallopian tube spring ring plugging operation can reach 98%, the operation time is greatly prolonged, the time of a single-side operation is only 5 minutes, and the time of a double-side operation is only within 10 minutes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a fallopian tube embolization coil blocking device. Background Art

[0002] The existing fallopian tube embolization coil occlusion device is a replacement product for the fallopian tube angiography recanalization catheter produced by COOK Company in the United States. The structure of the device includes an inner catheter and an outer catheter that are connected inside and outside. The rear end of the inner catheter is connected to a hollow guide piece that facilitates the guide wire to pass into the inner catheter. The front end of the inner catheter is a straight mouth. The length of the inner catheter and the guide wire is 70cm. A double balloon is installed on the outer wall of the front section of the outer catheter, and the length is 40cm. The syringe connector in the device is connected to the syringe. During the operation, the corresponding liquid medicine in the syringe is transported to the chamber between the outer catheter and the inner catheter through the syringe and the syringe connector, and enters the patient's uterine cavity.

[0003] The angiographic recanalization device has the following defects:

[0004] (1) Since the front end of the inner catheter is straight, it will press against the uterine horn and damage the uterine horn. For some patients with uterine curvature, it is difficult to insert the inner catheter into the fallopian tube. The operation time is long and it is easy to cause great trauma to the patient's related body tissues.

[0005] (2) Since double balloons are installed on the outer wall of the front section of the external catheter, some patients need to dilate their cervix before the external catheter can be inserted into the uterine cavity. This is extremely painful for the patients. At this time, air must be pumped into the uterus to inflate the double balloons and block the internal cervical opening, which further causes abdominal distension and pain in the patients, and then induces fallopian tube spasm, resulting in the inability to insert the microcatheter into the isthmus of the fallopian tube. The success rate of the operation is low.

[0006] (3) The device does not have a hydrophilic guide wire, and cannot perform adhesion separation on patients with adhesions in the isthmus of the fallopian tube, resulting in the inability to insert the microcatheter.

[0007] (4) The catheter and microcatheter are long and difficult to control. The embolization coil has a long distance to be pushed and may not be pushed to the intended position, which may lead to surgical failure.

[0008] (5) If the microcatheter is slightly thicker, it will be difficult to enter the thin isthmus of the fallopian tube, which may also lead to surgical failure.

[0009] (6) The fallopian tube occlusion operation requires the cooperation of two people to complete (especially for patients with cervical or uterine malformations). The operation is relatively complicated and time-consuming, which greatly increases the radiation intake of the patient and the operating doctor.

[0010] (7) The price is high and increases the burden on patients.

[0011] The utility model with application number CN201621475777.4 relates to the field of medical device technology, specifically a catheter for the uterine fallopian tube, whose main body is a hollow main catheter, an air bag is formed outside the tube body of the main catheter, and a branch catheter is formed inside the tube body of the main catheter, the head end of the branch catheter is connected to the air bag, the tail end of the branch catheter extends to the tail end of the main catheter and forms a fork therewith, metal wires are respectively provided along the axial side walls of the main body and the branch body; an opening is provided on the side wall of the head end of the tube body; and an injection connector is installed at the tail end of the main body.

[0012] However, the above patented technology cannot deliver fallopian tube embolization coils, nor can it overcome the technical problems existing in the prior art, and does not provide any inspiration for solving the problems of the prior art. Utility Model Content

[0013] The purpose of the utility model is to provide a fallopian tube embolization coil occlusion device to solve the problems raised in the above background technology:

[0014] (1) It can assist in completing the closure surgery of the fallopian tube embolization coil, improve the success rate of the closure surgery, and reduce the time required for the surgery.

[0015] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0016] A fallopian tube embolization coil occlusion device;

[0017] It includes a guide wire, a microcatheter, an embolization coil, an inner catheter and an outer catheter. The inner catheter is sheathed in the outer catheter. The front part of the inner catheter is provided with a bend, and the angle of the bend matches the position between the human uterus and the fallopian tube. The inner catheter can reciprocate along the inner hole of the outer catheter, and the front end of the inner catheter extends into the human fallopian tube.

[0018] The microcatheter can be sleeved in the inner catheter, the inner hole diameter of the microcatheter can only accommodate one embolization spring coil, the guide wire is sleeved in the microcatheter, and the outer diameter of the guide wire is consistent with the outer diameter of the embolization spring coil.

[0019] On the basis of the above technical solution, the present invention can also be improved as follows.

[0020] Furthermore, the front end of the microcatheter is provided with a developing marking coating.

[0021] Furthermore, an interface is provided at the rear end of the inner catheter, and the microcatheter can extend into the inner catheter from the interface.

[0022] Furthermore, the guide wire is coated with a medical hydrophilic coating.

[0023] Furthermore, a chamfer is provided between the front end surface of the inner catheter and the side wall, and the front end of the inner catheter forms a frustum-shaped end extending into the opening of the fallopian tube of the human body.

[0024] After adopting such a structure, the inner catheter is inserted into the outer catheter, and the front bend of the inner catheter is placed in the outer catheter. The inner catheter is operated to move toward the uterus relative to the outer catheter. When the bend at the front of the inner catheter extends out of the outer catheter, the bend at the front of the inner catheter is aligned with the fallopian tube of the uterus. The front end of the microcatheter is extended out of the inner catheter until the front end of the microcatheter reaches the preset position of the embolization coil. The embolization coil is placed in the microcatheter, and the embolization coil is transported to the front end of the microcatheter using a guide wire. The guide wire and the embolization coil are kept stationary, and the microcatheter is slowly withdrawn until the embolization coil is completely exposed in the fallopian tube, thereby completing the fallopian tube embolization coil occlusion surgery.

[0025] The fallopian tube embolization coil occlusion device can perform fallopian tube embolization surgery at the same time as hysterosalpingography and recanalization of the fallopian tube, reducing the surgical trauma caused by multiple intubations, realizing a truly minimally invasive surgery, which can be completely operated by one person, has a high success rate, is easy to operate, does not require cervical dilation, greatly shortens the treatment time, has a low surgical cost, can be used once, reduces the patient's economic burden and pain, and also greatly reduces the negative impact of radiation on the body of patients and doctors, and is easy to promote.

[0026] After adopting the fallopian tube embolization coil occlusion device, the success rate of fallopian tube coil occlusion can reach 98%, and the operation time is greatly improved. The unilateral operation only takes 5 minutes, and the bilateral operation only takes 10 minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a diagram of the use status of an embodiment of the fallopian tube embolization coil occlusion device.

[0028] Figure 2 yes Figure 1 A cross-sectional view of an enlarged view of part A.

[0029] Figure 3 This is one of the usage status diagrams of the outer catheter and the inner catheter in the embodiment of the fallopian tube embolization coil occlusion device.

[0030] Figure 4 This is the second usage diagram of the outer catheter and the inner catheter in the embodiment of the fallopian tube embolization coil occlusion device.

[0031] Description of the numbers in the figure:

[0032] Inner catheter 100; interface 110; bend 120; frustum-shaped end 130; outer catheter 200; microcatheter 300; embolization coil 400; guide wire 500. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0034] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figure 1 to Figure 2 .

[0037] The fallopian tube embolization coil occlusion device comprises a guide wire 500 , a microcatheter 300 , an embolization coil 400 , an inner catheter 100 and an outer catheter 200 .

[0038] The invention comprises a guide wire 500, a microcatheter 300, an embolization coil 400, an inner catheter 100 and an outer catheter 200. The inner catheter 100 is sleeved in the outer catheter 200. A bend 120 is arranged at the front of the inner catheter 100. The angle of the bend 120 matches the position between the human uterus and the fallopian tube. The inner catheter 100 is made of a flexible material. The inner catheter 100 can reciprocate along the inner hole of the outer catheter 200. The inner catheter 100 is sleeved in the outer catheter 200. The front end of the inner catheter 100 extends into the fallopian tube of the human body. The length of the inner catheter 100 is greater than that of the outer catheter 200. A chamfer is arranged between the front end face and the side wall of the inner catheter 100. The front end of the inner catheter 100 forms a frustum-shaped end 130 extending into the fallopian tube.

[0039] The microcatheter 300 can be inserted into the inner catheter 100. The specification of the microcatheter 300 is 2F-2.5F (i.e., 2-2.5mm). The inner hole diameter of the microcatheter 300 can only accommodate one embolic spring coil 400. The guide wire 500 is inserted into the microcatheter 300. The outer diameter of the guide wire 500 is consistent with the outer diameter of the embolic spring coil 400, and the diameter of the guide wire 500 is 1.8mm.

[0040] The front end of the microcatheter 300 is coated with a developing coating.

[0041] An interface 110 is disposed at the rear end of the inner catheter 100 , and the microcatheter 300 can extend into the inner catheter 100 from the interface 110 .

[0042] The guide wire 500 is coated with a medical hydrophilic coating. During the operation, the guide wire 500 not only plays a role in clearing the blockage and providing internal support for adhesion and stenosis of the affected part, but the hydrophilicity of the medical hydrophilic coating will also remain unchanged.

[0043] When using, Figure 3 As shown, the inner catheter 100 is firstly inserted into the outer catheter 200, and the front bend 120 of the inner catheter 100 is in the outer catheter 200. At this time, the inner catheter 100 is in a straight line under the constraint of the outer catheter 200. The front part of the inner catheter 100 in this state is inserted into the uterus from the patient's vagina together with the front part of the outer catheter 200.

[0044] like Figure 4 As shown, the inner catheter 100 is then operated to move relative to the outer catheter 200 toward the uterus, and when the bend 120 at the front of the inner catheter 100 extends out of the outer catheter 200, the bend 120 at the front of the inner catheter 100 is aligned with the fallopian tube of the uterus;

[0045] like Figure 1 As shown, the microcatheter 300 is inserted into the inner catheter 100 from the interface 110 at the rear end of the inner catheter 100, and the front end of the microcatheter 300 extends out of the inner catheter 100. Since the front end of the microcatheter 300 is coated with a developing coating, the position of the microcatheter 300 inserted into the fallopian tube can be accurately determined until the front end of the microcatheter 300 reaches the preset position of the embolization coil 400, and the embolization coil 400 is placed in the microcatheter 300, and the guide wire 500 is used to transport the embolization coil 400 to the front end of the microcatheter 300;

[0046] Keep the guide wire 500 and the embolization coil 400 immobile, and slowly withdraw the microcatheter 300 until the embolization coil 400 is completely exposed in the fallopian tube, thus completing the fallopian tube embolization coil 400 occlusion surgery.

[0047] The fallopian tube embolization coil occlusion device reduces the trauma caused to the patient during the operation, causes little damage to the body tissues at the cervix, uterus and fallopian tube opening, and realizes minimally invasive surgery.

[0048] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A fallopian tube embolization coil occlusion device, characterized by: The invention comprises a guide wire (500), a microcatheter (300), an embolization coil (400), an inner catheter (100) and an outer catheter (200), wherein the inner catheter (100) is sleeved inside the outer catheter (200), a bend (120) is provided at the front of the inner catheter (100), and the angle of the bend (120) matches the position between the human uterus and the fallopian tube, the inner catheter (100) can reciprocate along the inner hole of the outer catheter (200), and the front end of the inner catheter (100) extends into the fallopian tube of the human body; The microcatheter (300) can be inserted into the inner catheter (100), and the inner hole diameter of the microcatheter (300) can only accommodate one embolic spring coil (400). The guide wire (500) is inserted into the microcatheter (300), and the outer diameter of the guide wire (500) is consistent with the outer diameter of the embolic spring coil (400).

2. The fallopian tube embolization coil occlusion device according to claim 1, characterized in that: The front end of the microcatheter (300) is provided with a developing marking coating.

3. The fallopian tube embolization coil occlusion device according to claim 1, characterized in that: The rear end of the inner catheter (100) is provided with an interface (110), and the micro-catheter (300) can extend into the inner catheter (100) from the interface (110).

4. The fallopian tube embolization coil occlusion device according to claim 1, characterized in that: The guide wire (500) is coated with a medical hydrophilic coating.

5. The fallopian tube embolization coil occlusion device according to claim 1, characterized in that: A chamfer is provided between the front end surface and the side wall of the inner catheter (100), and the front of the inner catheter (100) forms a frustum-shaped end portion (130) extending into the opening of the human fallopian tube.

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