Intrauterine device propelling device

Abstract

The utility model discloses an intrauterine device propelling device which comprises a propeller, the propeller comprises a handle, a sleeve arranged at the head end of the handle and a push rod arranged in the sleeve, the intrauterine device propelling device further comprises a guide structure, the guide structure comprises a rigid guide tube, and the rigid guide tube is provided with a bent section adaptive to the female cervix uteri contour. The tube cavity can be filled by the tube core; before the intrauterine device is placed, the tube core goes deep into position along the cervix uteri along with the rigid guide tube; when the intrauterine device is placed, the tube core is pulled away to open the tube cavity of the rigid guide tube, and the tube cavity of the rigid guide tube serves as a channel for guiding the sleeve and the push rod to reach the fundus of uterus. The utility model aims to provide an intrauterine device propelling device. According to the intrauterine device propelling device, a guide structure is additionally arranged to guide a sleeve and a push rod to smoothly reach the fundus of uterus along the cervix uteri. By means of the design, accurate placement of the intrauterine device is guaranteed, and physical damage to the cervix uteri can be relieved in the propelling process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of female intrauterine contraceptive device, especially to intrauterine device advancing device. BACKGROUND

[0002] Intrauterine device (IUD) is a recognized contraceptive device with good contraceptive effect and fewer side effects. Its contraceptive principle mainly embodies in the following aspects:

[0003] 1. Interfering with sperm transport: The copper ions or hormones released by the intrauterine device can interfere with the movement of sperm, preventing them from normally swimming to and entering the egg.

[0004] 2. Interfering with fertilization: Copper ions can interfere with the acrosome reaction of sperm, preventing sperm from combining with eggs.

[0005] 3. Interfering with implantation: The hormones and / or copper ions released by the intrauterine device can change the physiological environment of the endometrium, making it difficult for the fertilized egg to implant.

[0006] 4. Inducing inflammatory response: Intrauterine device may cause mild inflammatory response in the uterine cavity, inhibit the development of endometrium, and is not conducive to the implantation of fertilized egg.

[0007] Intrauterine device (IUD) needs to be placed in the muscle layer at the bottom of the uterus by a special advancing device. The traditional intrauterine device (IUD) advancing device is usually composed of several key components, including a sleeve, a push rod and a handle (referring to Chinese invention patent ZL201310072130.1). The design purpose of these devices is to facilitate the accurate placement of the intrauterine device into the bottom of the uterus by the doctor during the intrauterine device placement operation. However, although these devices are necessary in function, they have some shortcomings that cannot be ignored in actual use.

[0008] On the one hand, since the operation needs to pass through the narrow, curved and sensitive channel of the cervix, even if the sleeve and push rod are made of flexible injection molding materials or use springs to transition, they can adapt to the cervical flexion, but they may still cause physical damage to the cervix in use. Such damage not only causes immediate pain and discomfort for women, but also may cause long-term complications, such as cervical stenosis or infection.

[0009] On the other hand, if the position of the intrauterine device in the uterus is not accurately placed, it may be displaced or fall off. Once this happens, the intrauterine device may not be able to exert its intended contraceptive effect, and may even cause other health problems, such as uterine perforation or embedding of the intrauterine device into the uterine wall, which requires surgery to remove or reposition. SUMMARY

[0010] Therefore, the utility model aims at providing an intrauterine device pushing device, which guides the sleeve and the push rod to smoothly reach the fundus along the cervix by adding a guide structure.

[0011] The utility model solves the above technical problems by the following technical scheme:

[0012] The utility model discloses an intrauterine device pushing device, including pusher, the pusher includes handle, the sleeve that sets up at the handle first end and the push rod that sets up in the sleeve, and its key lies at: still include guide structure, the guide structure includes rigid guide pipe, the rigid guide pipe is provided with the curved section according to female cervix contour, and its lumen can pass through the tube core filling, before placing the intrauterine device, the tube core is along the cervix in place with the rigid guide pipe deepening, when placing the intrauterine device, the tube core is extracted to open the lumen of the rigid guide pipe, and the lumen of the rigid guide pipe is used as the passageway of the sleeve and the push rod to reach the fundus.

[0013] Further, the handle is hollow structure and is set with the limiting mouth in its length direction, the finger push block is movably arranged in the limiting mouth, the finger push block is connected with the tail end of the push rod and is constrained by the elastic element in the handle, the hook part is further formed on the first end of the push rod and can be movably arranged in the clamping opening of the sleeve length direction, the clamping groove is further arranged on the first end of the sleeve, and the clamping groove is matched with the hook part to realize the clamping and release of the intrauterine device.

[0014] Further, the thimble is further connected on the push rod, and the thimble is used for ejecting the intrauterine device in the clamping groove to assist the release of the intrauterine device.

[0015] Further, the limiting ring for limiting the insertion depth is further arranged on the sleeve.

[0016] Further, the first end of the tube core is rounded.

[0017] Further, the overall length of the rigid guide pipe is 200mm-250mm, and the included angle between the two ports of the curved section is 145°-175°.

[0018] Further, the scale mark is arranged on the outer surface of the rigid guide pipe along the length direction.

[0019] Further, the tube core is made of a flexible transparent material, and has a core cavity closed at the front end, and a miniature camera is arranged in the core cavity near the front end of the tube core, and the lead wire of the miniature camera is led out from the tail end of the tube core through the core cavity.

[0020] Further, a limiting nut is connected to the tail section of the tube core through the opened external thread.

[0021] Compared with the prior art, the utility model has at least the following beneficial effects:

[0022] (1) By improving the placement technology of the contraceptive device, the accuracy during placement is greatly improved, thereby effectively reducing the risk of displacement or shedding caused by improper placement of the contraceptive device, and the safety and reliability of the operation are improved;

[0023] (2) During the placement of the contraceptive device, the damage to the female cervix is significantly reduced by adding a guide structure, and the possibility of additional surgical intervention due to improper operation is reduced, thereby improving the comfort and safety of the overall operation;

[0024] (3) The bending section of the rigid guide tube is designed to fully consider the physiological structure characteristics of the female cervix, making the operation process more humanized and safe, effectively reducing the physical damage to the female cervix during the pushing process, and improving the comfort and success rate of the contraceptive device placement;

[0025] (4) The hollow structure and the limiting port of the handle make it easier for the operator to release the contraceptive device with one hand, greatly improving the convenience and efficiency of the operation, and reducing the operation burden of the doctor;

[0026] (5) The cooperation mechanism of the hook part and the clamping groove is optimized to ensure the stability and reliability of the contraceptive device during placement, effectively avoiding the risk of displacement or shedding of the contraceptive device in the body;

[0027] (6) The design of the thimble is carefully improved, making the release process of the contraceptive device more convenient and smooth, significantly improving the operation efficiency, shortening the operation time, and reducing the discomfort of the patient;

[0028] (7) The setting of the limiting ring effectively prevents the cannula from being inserted too deeply, thereby protecting the uterine wall from damage and ensuring the safety of the operation and reducing the occurrence of postoperative complications;

[0029] (8) The smooth transition of the front end of the rigid guide tube and the rounded corner treatment of the front end of the tube core effectively reduce the mechanical stimulation to the cervix, improve the comfort of the operation, and reduce the discomfort of the patient;

[0030] (9) The setting of the scale mark helps the doctor to measure the depth of the rigid guide tube insertion more accurately, further improving the accuracy of the operation, and ensuring that the contraceptive device is placed in the best position;

[0031] (10) The use of the miniature camera enables the doctor to visually observe the specific situation during the placement of the contraceptive device, significantly improving the visibility and safety of the operation, and reducing the risk of surgery;

[0032] (11) The setting of the limiting nut provides additional fixing and limiting function for the tube core, ensuring the stability and accuracy during operation, and further improving the success rate and safety of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The cooperation relationship diagram of the intrauterine contraceptive device pushing device in different operating states in embodiment one;

[0035] Figure 2 The structure diagram of the guide structure in embodiment one;

[0036] Figure 3 The half-section view of the guide structure in embodiment one;

[0037] Figure 4 The structure diagram of the pushing function component in embodiment one (one);

[0038] Figure 5 The structure diagram of the pushing function component in embodiment one (two);

[0039] Figure 6 The Figure 5 The local enlarged view of part A in embodiment one;

[0040] Figure 7 The internal structure diagram of the handle in embodiment one;

[0041] Figure 8 The assembly diagram of the pushing function component in embodiment one;

[0042] Figure 9 The Figure 8 The local enlarged view of part B in embodiment one;

[0043] Figure 10Structure schematic view of the guiding structure in Example 2;

[0044] Wherein: 1 - pusher, 101 - handle, 102 - sleeve, 103 - push rod, 104 - limit port, 105 - finger push block, 106 - elastic element, 107 - hook part, 108 - clamping port, 109 - clamping groove, 110 - thimble, 111 - limiting ring;

[0045] 2 - guiding structure, 201 - rigid guide tube, 2011 - curved section, 202 - tube core, 203 - scale mark, 204 - external thread, 205 - limiting nut;

[0046] 3 - intrauterine device. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0048] In the description of the present application, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0049] Figures 1 to 3 A first embodiment of the present application is shown: an intrauterine device pushing device, comprising a pusher 1, the pusher 1 comprising a handle 101, a sleeve 102 provided at the first end of the handle 101, and a push rod 103 provided in the sleeve 102, further comprising a guiding structure 2, the guiding structure 2 comprising a rigid guide tube 201, the rigid guide tube 201 being provided with a curved section 2011 adapted to the contour of the female cervix, and the lumen thereof being capable of being filled with a tube core 202; before placing the intrauterine device, the tube core 202 is placed in position along the cervix with the rigid guide tube 201; when placing the intrauterine device, the tube core 202 is withdrawn to open the lumen of the rigid guide tube 201, and the lumen of the rigid guide tube 201 serves as a channel for guiding the sleeve 102 and the push rod 103 to reach the fundus.

[0050] Please refer toFigures 4 to 9 In the embodiment, the handle 101 is in a hollow structure and a limiting opening 104 is formed in the length direction of the handle 101, a finger pushing block 105 is movably arranged in the limiting opening 104, the finger pushing block 105 is connected with the tail end of the push rod 103 and is constrained by an elastic element 106 in the handle 101, a hook part 107 is further formed at the head end of the push rod 103 and the hook part 107 can move in a clamping opening 108 formed in the length direction of the sleeve 102, a clamping groove 109 is further formed at the head end of the sleeve 102 and cooperates with the hook part 107 to realize clamping and releasing of the IUD. Specifically, a thimble 110 is further connected to the push rod 103 and is used for ejecting the IUD in the clamping groove 109 to assist in releasing the IUD. As a preferred, a limiting ring 111 for limiting the insertion depth of the sleeve 102 is further arranged on the sleeve 102. In use, the IUD is elongated and fixed by the clamping groove 109 and the hook under the action of the elastic element 106. When the pusher 1 is in place, the hook part 107 at the head end of the push rod 103 is pushed to the clamping groove 109, and the IUD is immediately released from the hook part 107. At the same time, the thimble pushes the IUD out of the clamping groove 109, so that the IUD is released and placed at the fundus.

[0051] As Figure 2 and Figure 3 Although the method of filling the rigid guide tube 201 with the tube core 202 can significantly reduce the risk of mechanical damage to the cervix caused by the mechanical damage of the first end opening of the rigid guide tube 201, it is necessary to consider the potential risk that the sharp opening of the first end of the tube core 202 may scratch the cervical wall.

[0052] Please refer to Figure 2 In a specific application scenario, the overall length of the rigid guide tube 201 is 200mm-250mm, and the included angle between the two ports of the curved section 2011 is 145°-175°. A scale mark 203 is arranged on the outer surface of the rigid guide tube 201 along the length direction.

[0053] Figure 10 The second embodiment of the utility model is shown, compared with the first embodiment, in order to realize the visualization of the IUD placement operation, the tube core 202 is made of flexible transparent material and has a closed core cavity at the first end, a miniature camera is further arranged in the core cavity near the first end of the tube core 202, and the lead wire of the miniature camera is led out from the tail end of the tube core 202 through the core cavity.

[0054] In the embodiment, the tail section of the tube core 202 is connected with a limiting nut 205 through the opened external thread 204, so as to control the insertion depth of the tube core 202 in the rigid guide tube 201.

[0055] In the second embodiment of the utility model, the configuration of the miniature camera enables the doctor to observe the inside of the cervix during the placement of the contraceptive device in real time through the monitor, thereby improving the accuracy and safety of the operation. The application of the camera not only helps to prevent damage to the cervical wall, but also ensures that the contraceptive device is accurately placed at the fundus. In the actual operation process, the doctor first inserts the rigid guide tube 201 and the tube core 202 combination into the cervix until it reaches the fundus. In this process, the doctor can observe the position of the front end of the rigid guide tube 201 and the tube core 202 in real time through the monitor. Once it reaches the appropriate position, the doctor will pull out the tube core 202 and insert the sleeve 102 along the lumen of the rigid guide tube 201. After confirming that the contraceptive device has reached the fundus, the doctor will push the finger block 105, causing the hook portion 107 to move closer to the clamping groove 109, and cooperate with the pushing action of the ejector pin 110 to release the contraceptive device, thereby completing the placement of the contraceptive device.

[0056] In summary, by improving the placement technology of the contraceptive device, the accuracy during the placement process is greatly improved, thereby effectively reducing the risk of displacement or shedding caused by improper placement of the contraceptive device, and facilitating the improvement of the safety and reliability of the operation; during the placement of the contraceptive device, by additionally arranging the guide structure 2, the damage degree to the female cervix is significantly reduced, and the possibility of additional surgical intervention due to improper operation is reduced, thereby improving the comfort and safety of the overall operation; the design of the bending section 2011 of the rigid guide tube 201 fully considers the physiological structure characteristics of the female cervix, so that the operation process is more humanized and safe, effectively reducing the physical damage to the female cervix during the pushing process, and improving the comfort and success rate of the contraceptive device placement; the hollow structure and the limiting opening 104 of the handle 101 are designed, so that the operator can more conveniently release the contraceptive device with one hand, greatly improving the convenience and efficiency of the operation, and reducing the operation burden of the doctor; the cooperation mechanism of the hook part 107 and the clamping groove 109 is optimized, ensuring the stability and reliability of the contraceptive device during the placement process, and effectively avoiding the risk of displacement or shedding of the contraceptive device in the body; the design of the thimble 110 is carefully improved, so that the release process of the contraceptive device is more convenient and smooth, significantly improving the operation efficiency, shortening the operation time, and reducing the discomfort of the patient; the arrangement of the limiting ring 111 effectively prevents the sleeve 102 from being inserted too deep, thereby protecting the uterine wall from damage, ensuring the safety of the operation and reducing the occurrence of postoperative complications; the smooth transition of the first end of the rigid guide tube 201 and the rounded corner treatment of the first end of the tube core 202 effectively reduce the mechanical stimulation to the cervix, improve the comfort of the operation, and reduce the discomfort of the patient; the arrangement of the scale mark 203 helps the doctor to more accurately measure the depth of the insertion of the rigid guide tube 201, further improving the accuracy of the operation, and ensuring that the contraceptive device is placed in the best position; the use of the miniature camera enables the doctor to directly observe the specific conditions during the placement of the contraceptive device, significantly improving the visibility and safety of the operation, and reducing the risk of the operation; the arrangement of the limiting nut 205 provides additional fixing and limiting function for the tube core 202, ensuring the stability and accuracy during the operation, and further improving the success rate and safety of the operation.

[0057] The above disclosure is only a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. An intrauterine device delivery device comprising a delivery device, said delivery device comprising a handle, a sleeve disposed at a proximal end of the handle, and a pushrod disposed in the sleeve, wherein: The guiding structure comprises a rigid guiding tube, which is provided with a curved section to adapt to the contour of the cervix of a female and has a tube cavity capable of being filled with a tube core; before placing the intrauterine device, the tube core is placed in position along the cervix with the rigid guiding tube; when placing the intrauterine device, the tube core is pulled out to open the tube cavity of the rigid guiding tube, which then serves as a channel to guide the sleeve and the push rod to the fundus.

2. The intrauterine device advancement device of claim 1, wherein: The handle is hollow and has a limiting opening in the length direction, in which a finger pushing block is movably arranged, the finger pushing block is connected with the tail end of the push rod and is constrained by an elastic element in the handle, a hook part is further formed at the head end of the push rod, the hook part can move in a clamping opening in the length direction of the sleeve, a clamping groove is further formed at the head end of the sleeve, and the clamping groove cooperates with the hook part to clamp and release the intrauterine device.

3. The intrauterine device advancement device of claim 2, wherein: A thimble is further connected to the push rod, which is used to push out the intrauterine device in the clamping groove to assist the release of the intrauterine device.

4. The intrauterine device advancement device of claim 3, wherein: A limiting ring is further arranged on the sleeve to limit the insertion depth.

5. The intrauterine device advancement device of any one of claims 1-4, wherein: The head end of the tube core is rounded.

6. The intrauterine device advancement device of claim 5, wherein: The overall length of the rigid guiding tube is 200-250 mm, and the included angle between the two ports of the curved section is 145-175°.

7. The intrauterine device advancement device of claim 6, wherein: A scale mark is arranged on the outer surface of the rigid guiding tube in the length direction.

8. The intrauterine device advancement device of claim 1 or 6 or 7, wherein: The tube core is made of flexible transparent material and has a closed core cavity at the head end, a miniature camera is further arranged in the core cavity near the head end of the tube core, and the lead wire of the miniature camera is led out from the tail end of the tube core through the core cavity.

9. The intrauterine device advancement device of claim 8, wherein: A limiting nut is connected to the tail end of the tube core through an external thread. The guiding structure comprises a rigid guiding tube, which is provided with a curved section to adapt to the contour of the cervix of a female and has a tube cavity capable of being filled with a tube core; before placing the intrauterine device, the tube core is placed in position along the cervix with the rigid guiding tube; when placing the intrauterine device, the tube core is pulled out to open the tube cavity of the rigid guiding tube, which then serves as a channel to guide the sleeve and the push rod to the fundus.

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