An intrauterine device inserter

Abstract

The present invention discloses an intrauterine device placement device, comprising a placement tube, a base assembly, a handle, a push rod and a protective layer assembly. The handle is provided with a base assembly, the protective layer assembly is sleeved on the placement tube, the placement tube is inserted on the handle and is slidably connected to the handle through the base assembly, the push rod is inserted on the handle and passes through the base assembly to be slidably connected to the placement tube, and the push rod is used to fix the intrauterine implantable device. The present invention belongs to the technical field of medical devices. The purpose of the present invention is to solve the problem in the prior art that intrauterine implantable devices are prone to carry bacteria or cause contamination when implanted into the uterus. The technical effect achieved is: by providing the protective layer assembly, the placement tube and the intrauterine implantable device can be protected when passing through the vagina, thereby preventing the outer surface of the placement tube from being contaminated or carried by bacteria and other pollutants from entering the cervix and uterine cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and in particular to an intrauterine device placement device. Background Art

[0002] The uterus is one of the most important female reproductive organs, crucial for menstruation and the development of the fetus. The uterus is a hollow organ located in the center of the pelvic cavity, lined with a mucous membrane called the endometrium. From puberty to menopause, the endometrium, influenced by ovarian hormones, cyclically thickens and sheds, resulting in menstruation. During conception, sperm passes through the uterus and into the fallopian tubes. After conception, the uterus serves as a site for the embryo to develop and grow, nurturing the fetus. During labor, the uterus contracts to deliver the fetus and its appendages. These physiological functions are primarily controlled by estrogen and progesterone, secreted by the ovaries, which determine the normal cyclical changes in the uterus. Therefore, the uterus is closely linked to reproductive activities and reproductive health.

[0003] An increasing number of intrauterine devices have been developed and are being used clinically, such as hysteroscopes and intrauterine devices (IUDs). An intrauterine device (IUD) is a contraceptive device placed in the uterus. Because of its early circular design, it is also known as a uterine ring, birth control ring, or contraceptive ring. Today, it is generally T-shaped.

[0004] IUDs are typically made of materials such as stainless steel, plastic, and silicone rubber. Common types include inert, unmedicated IUDs and active, medicated IUDs. The first type typically contains copper, which blocks and harms sperm or a fertilized egg, thereby preventing conception. The other type contains the hormone progesterone, which is slowly and steadily released into the uterine cavity, thickening the cervical mucus to prevent sperm from reaching the egg, or altering the uterine lining to hinder implantation of a fertilized egg or embryo, thereby achieving contraceptive efficacy.

[0005] Intrauterine devices (IUDs) are long-acting, reversible contraceptive devices that generally have a usage cycle of 3 to 5 years. After a long period of use, the IUD is removed and the woman's fertility returns to normal. Among various contraceptive methods, IUDs have the lowest failure rate. The failure rate for copper IUDs is approximately 0.8%, while the failure rate for hormonal IUDs (levonorgestrel) is only approximately 0.2% during the first year of use. Furthermore, in terms of user experience, IUD user satisfaction is one of the highest among various contraceptive methods. Studies have shown that 41.7% of family planning providers choose long-acting reversible contraceptive devices. Due to these many advantages, IUDs are becoming increasingly accepted and popular.

[0006] During the use of IUD or other intrauterine devices, a placer / implanter is required to place them. Currently, there are many different placers to choose from. The placer generally consists of a placement tube, a push rod, and a handle. Generally, the IUD will be loaded into the placement tube, and there will be some scales on the outer wall of the placement tube to indicate the depth of entry into the uterus. When in use, it is generally necessary to measure the depth of the fundus of the uterus first, and then the placement tube is inserted into the uterus through the vagina and cervix. The IUD is released in the uterus by pushing the push rod, and the IUD is adjusted to remain stably in the uterine cavity. The handle is a fixed part used by medical staff to stabilize the placer and perform the placement operation when performing the implantation operation.

[0007] The normal uterus is in a slightly anteverted and anteflexed posture. Anteversion means that the uterine axis and the vaginal axis are open forward at an angle, and anteflexion means the curvature between the uterine body and the cervix. In addition, the amount of urine in the bladder will also cause a certain change in the angle of the uterus. Therefore, some placement devices are designed to add a certain bend to the front end of the placement tube to adapt to the passage from the vagina to the cervix and then into the uterus. The front end of the placement tube of some placement devices can be bent as needed, or the bending position can be adjusted to adapt to the position and shape of the uterus. Some placement devices have special designs for the push rod or placement tube (such as adding a slot, designing annular grooves, etc.) to fix the IUD and prevent it from falling off during implantation. Some designs also introduce springs into the push rod to reduce the risk of uterine window holes.

[0008] The references are as follows:

[0009] Invention patent: "Intrauterine contraceptive device placement device", CN201310072130.1;

[0010] Invention patent: "Fixed IUD Placer", CN01106590.7;

[0011] Utility Model: "Intrauterine Contraceptive Device Placer", CN201620364729.1;

[0012] Utility model: "A pull-in contraceptive device placement device", CN201020288908.4;

[0013] Utility model: "An IUD placement device", CN201720509683.2;

[0014] Utility model: "A push-in contraceptive ring placement device", CN201721492412.7;

[0015] Utility model: "A push-in contraceptive ring placement device", CN201921110928.X;

[0016] Utility model: "A placement device for an intrauterine device", CN201921005096.5.

[0017] During the use of IUD or other intrauterine devices, an implanter / placer is required to place them. Currently, there are many different implanters to choose from, but there are still many problems and shortcomings in their use, such as:

[0018] When using an inserter to implant an intrauterine device, there is a risk of bacteria or other contaminants entering the uterine cavity through the vagina, causing cross-contamination and the risk of infection. For example, within 20 days of using an implanted intrauterine device, there is a risk of pelvic inflammatory disease (PID), which is believed to be caused by bacterial contamination during the process rather than the intrauterine device itself. Some epidemiological studies have confirmed the relationship between the use of intrauterine devices and a higher risk of pelvic inflammatory disease (PID). In addition, there may be problems such as infection (endometritis, adnexitis, etc.), irregular bleeding and menstrual disorders, and may even lead to infertility.

[0019] The angle and depth of insertion of the IUD into the uterus are difficult to control and usually require the physician's experience. Inexperienced, improper placement, or rough insertion can lead to uterine perforation, dislocation of the IUD, or damage to the cervix and endometrium. Furthermore, insufficient insertion depth can cause the IUD to become misplaced within the uterus or cause problems with its fixation, potentially leading to misplacement or even expulsion.

[0020] Current intrauterine devices use a disposable inserter that is typically provided with the device and cannot be reused. This design wastes resources and increases device costs. Reusing the inserter also creates the risk of cross-infection.

[0021] Because the status of the placement device during use usually needs to be judged based on the doctor's experience, and any problems may cause great physical and mental damage to the patient, strict training will be carried out before clinical use, which is time-consuming and labor-intensive. Summary of the Invention

[0022] To this end, the present invention provides an intrauterine device placement device to solve the above-mentioned problems in the prior art.

[0023] In order to achieve the above object, the present invention provides the following technical solutions:

[0024] According to a first aspect of the present invention, an intrauterine device placement device includes a placement tube, a base assembly, a handle, a push rod and a protective layer assembly, wherein the base assembly is provided on the handle, the protective layer assembly is sleeved on the placement tube, the placement tube is inserted into the handle and is slidably connected to the handle through the base assembly, the push rod is inserted into the handle and passes through the base assembly and is slidably connected to the placement tube, and the push rod is used to fix the intrauterine implantable device.

[0025] Furthermore, the protective layer assembly includes a protective sleeve and a stop platform. The protective sleeve is sleeved on the end of the placement tube away from the handle and is slidably connected to the placement tube. The end of the protective sleeve away from the handle is sleeved with a stop platform.

[0026] Furthermore, the protective layer assembly includes a protective film, which is sleeved on the placement tube.

[0027] Furthermore, the base assembly includes a base, the base is arranged in the handle and one end of the base is slidably connected to the handle, the other end of the base is connected to the placement tube, and the push rod passes through the base and is slidably connected to the placement tube.

[0028] Furthermore, the base assembly also includes a push-pull member, a slider and a protrusion. A protrusion is provided at one end of the base close to the placement tube. One end of the push-pull member abuts against the protrusion, and the other end of the push-pull member is detachably connected to the slider. The slider is slidably connected to the side wall of the handle.

[0029] Furthermore, the base assembly also includes a pressure sensor, and the pressure sensor is provided on the surface of the base away from the end where the tube is placed.

[0030] Furthermore, there are multiple pressure sensors, and the multiple pressure sensors are evenly spaced and distributed on the base.

[0031] Furthermore, the base assembly also includes an electronic module, which is arranged in the handle, the electronic module abuts the base, and the electronic module is electrically connected to the pressure sensor.

[0032] Furthermore, it also includes a display device, which is provided on the outer side wall of the handle and is electrically connected to the electronic module.

[0033] Furthermore, an opening is formed at one end of the protective sleeve away from the handle.

[0034] The present invention has the following advantages: First, the provision of a protective layer assembly can protect the placement tube and the intrauterine implantable device when the placement tube passes through the vagina, thereby preventing bacteria and other contaminants contaminated or carried on the outer surface of the placement tube from entering the cervix and uterine cavity; in addition, the placement device adopts a separate arrangement of the placement tube and the placement device body (including the base assembly, handle, and push rod), which can facilitate the replacement of the placement tube, thereby achieving the reuse of the placement device body and the disposable use of the placement tube, thereby achieving the purpose of cost reduction and waste reduction on the basis of ensuring the physiological health and safety of the patient;

[0035] Second, the use of the intrauterine implant device placement device designed in the present invention can effectively avoid cross-contamination of other pollutants in the vaginal environment and the intrauterine environment during the implantation process, thereby greatly reducing the problems that may occur to users after the intrauterine device is implanted using the placement device, such as infection, various verifications, bleeding, etc.

[0036] Third, the use of the placement device of the present invention can monitor the force applied to the placement device, the angle and depth of the placement tube when entering the uterus in real time during use (implantation process), and determine whether the placement device is used correctly, thereby preventing various problems such as uterine perforation caused by improper implantation operation.

[0037] Fourth, since the placement device in the present invention can monitor the pressure value and distribution received by the placement device in real time and determine whether the placement tube has reached the appropriate implantation position, the step of measuring the depth of the uterine cavity before implantation can be omitted, the implantation process can be simplified, and the user experience can be greatly improved.

[0038] Fifth, since the real-time status of the placement device can be monitored during use, the detected problems can be fed back to the user through a certain human-machine interface, and corresponding guidance can be given at the same time, reducing the requirements and difficulty of clinical training.

[0039] Sixth, the main body of the placement device of the present invention is reusable, and the placement tube part is disposable, thereby achieving cost compression and reducing unnecessary waste on the basis of ensuring the physiological hygiene and safety of the patient, and effectively reducing the cost of using the placement device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0041] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0042] Figure 1 A schematic diagram of the overall structure of an intrauterine device placement device provided in some embodiments of the present invention.

[0043] Figure 2 This is a schematic diagram of a first structure of an intrauterine device placement device before the placement tube enters the uterus, provided in some embodiments of the present invention.

[0044] Figure 3 This is a schematic diagram of a first structure of an intrauterine device placement device after the placement tube enters the uterus, provided in some embodiments of the present invention.

[0045] Figure 4 This is a schematic diagram of a second structure of an intrauterine device placement device provided in some embodiments of the present invention before the placement tube enters the uterus.

[0046] Figure 5 This is a schematic diagram of a second structure of an intrauterine device placement device provided in some embodiments of the present invention after the placement tube enters the uterus.

[0047] Figure 6 A schematic diagram of a third structure of an intrauterine device placement device provided in some embodiments of the present invention before the placement tube enters the uterus.

[0048] Figure 7 This is a schematic diagram of a third structure of an intrauterine device placement device provided by some embodiments of the present invention after the placement tube enters the uterus.

[0049] Figure 8 This is a schematic diagram of a fourth structure of an intrauterine device placement device provided in some embodiments of the present invention before the placement tube enters the uterus.

[0050] Figure 9 This is a schematic diagram of a fourth structure of an intrauterine device placement device after the placement tube enters the uterus, provided in some embodiments of the present invention.

[0051] Figure 10 A schematic diagram of a first structure of a friction block of an intrauterine device placement device provided in some embodiments of the present invention.

[0052] Figure 11A second structural schematic diagram of a friction block of an intrauterine device placement device provided in some embodiments of the present invention.

[0053] Figure 12 A third structural schematic diagram of a friction block of an intrauterine device placement device provided in some embodiments of the present invention.

[0054] Figure 13 A second structural diagram, an expanded diagram, and a cross-sectional diagram of the connection between the placement tube and the base of an intrauterine device placement device provided in some embodiments of the present invention.

[0055] Figure 14 A circuit schematic diagram of an intrauterine device placement device provided in some embodiments of the present invention.

[0056] Figure 15 An expanded view of a first structural diagram of the connection between the placement tube and the base of an intrauterine device placement device provided in some embodiments of the present invention.

[0057] Figure 16 A first structural diagram of the connection between the placement tube and the base of an intrauterine device placement device provided in some embodiments of the present invention.

[0058] Figure 17 A second structural diagram, an expanded diagram, and a cross-sectional diagram of the connection between the placement tube and the base of an intrauterine device placement device provided in some embodiments of the present invention.

[0059] Figure 18 A circuit schematic diagram of an intrauterine device placement device provided in some embodiments of the present invention.

[0060] Figure 19 An exploded view of an intrauterine device placement device provided in some embodiments of the present invention when the device is loaded and before release.

[0061] Figure 20 An exploded view of an intrauterine device placement device according to some embodiments of the present invention when releasing the device in the uterus.

[0062] In the figure: 1. placement tube, 2. base assembly, 3. handle, 4. push rod, 5. intrauterine implant device, 6. protective layer assembly, 7. protective sleeve, 8. arc top, 9. stop platform, 10. protective film, 11. base, 12. slider, 13. pressure sensor, 14. electronic module, 15. display device, 16. push-pull member, 17. protrusion, 19. multiplexer, 20. signal conditioning, 21. variable gain amplifier, 22. analog-to-digital converter, 23. voltage converter, 24. battery, 25. speaker, 26. display module, 27. antenna, 28. wireless module, 29. central processing unit, 30. friction block. DETAILED DESCRIPTION

[0063] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0064] like Figures 1 to 18 As shown, an intrauterine device placement device in an embodiment of the first aspect of the present invention includes a placement tube 1, a base assembly 2, a handle 3, a push rod 4 and a protective layer assembly 6. The base assembly 2 is provided on the handle 3, and the protective layer assembly 6 is sleeved on the placement tube 1. The placement tube 1 is inserted into the handle 3 and is slidably connected to the handle 3 through the base assembly 2. The push rod 4 is inserted into the handle 3 and passes through the base assembly 2 to be slidably connected to the placement tube 1. The push rod 4 is used to fix the intrauterine implantable device 5.

[0065] In the above embodiment, it should be noted that the push rod 4 is used to fix the intrauterine implantable device in the placement tube 1, and release the implantable device when the placement tube 1 enters the uterus. The placement tube 1 is a disposable item. The placement tube 1 contains an intrauterine implantable device 5, which is used to carry the intrauterine implantable device 5 and release the intrauterine implantable device 5 after being inserted into the uterine cavity. The push rod 4 slides relative to the placement tube 1 and the intrauterine implantable device 5 is installed at the end of the push rod 4.

[0066] The technical effect achieved by the above embodiment is: the provision of the protective layer component 6 can protect the placement tube 1 and the intrauterine implantable device when the placement tube 1 passes through the vagina, thereby preventing the outer surface of the placement tube 1 from being contaminated or carried by bacteria and other contaminants from entering the cervix and uterine cavity; in addition, the placement device adopts a separate setting of the placement tube 1 and the placement device body (including the base component 2, the handle 3 and the push rod 4), which can realize the convenient replacement of the placement tube 1, thereby realizing the reuse of the placement device body part and the disposable use of the placement tube part, achieving the purpose of cost reduction and waste reduction on the basis of ensuring the physiological hygiene and safety of the patient.

[0067] Optional, such as Figures 1 to 9 As shown, in some embodiments, the protective layer assembly 6 includes a protective sleeve 7 and a stop platform 9. The protective sleeve 7 is sleeved on the end of the placement tube 1 away from the handle 3 and is slidably connected to the placement tube 1. The end of the protective sleeve 7 away from the handle 3 is sleeved with a stop platform 9.

[0068] In the above optional embodiments, it should be noted that the top of the stop platform 9 is a plane or a circular dome and has an opening. The opening remains closed when no force is applied, and opens to form an opening when force is applied. When the top is in the shape of a circular dome, the opening of the circular dome can be cross-shaped or petal-shaped, etc., and the protective sleeve 7 is a hard sleeve.

[0069] Preferably, Figure 6 and Figure 7 As shown, the implant tube 1 further includes an arc top 8. The arc top 8 is provided at the top of the implant tube 1, and an opening is provided on the top of the arc top 8. The diameter of the stop platform 9 is larger than the diameter of the protective sleeve 7, and the height of the stop platform 9 is 5mm to 10mm. During the implantation process, the stop platform 9 ensures that the sleeve stays at the cervix, that is, outside the uterus. The arc top 8, which has a slightly smaller diameter, is used to ensure that the implant tube 1 is aligned with the cervical opening. Specifically, when the position of the implant tube 1 deviates, the arc top 8 will guide the implant tube 1 to align with the cervical opening with the help of thrust. When the implant tube 1 needs to enter the uterine cavity, the stop platform 9 will be tightly pressed against the cervical opening, and the implant tube 1 can continue to and stably extend from the opening of the stop platform 9. The arc top 8 and the end of the stop platform 9 facing away from the protective sleeve 7 are both dome-shaped or hemispherical, and the opening on the arc top 8 is in the shape of a "cross" or a "M" shape.

[0070] The beneficial effects of the above optional embodiments are as follows: the provision of the protective sleeve 7 can protect the placement tube 1 to maintain a sterile and hygienic state; the provision of the stop platform 9 ensures that the protective sleeve will be fixed outside the cervix and will not enter the cervix, and can accurately locate the cervical opening so that the placement tube 1 can accurately enter the cervix and then reach the uterine cavity; the provision of the sliding connection between the protective sleeve 7 and the placement tube 1 ensures that after the protective sleeve 7 reaches and stops outside the cervix, the placement tube 1 can continue to extend and be inserted into the uterus through the cervix.

[0071] Optional, such as Figure 1 、 Figure 4 、 Figure 5 、 Figure 8 and Figure 9 As shown, in some embodiments, the protective layer assembly 6 includes a protective film 10, which is sleeved on the placement tube 1.

[0072] In the above optional embodiment, it should be noted that the protective film 10 is dense, soft, very thin, and has a relatively rough surface; before using the placement device, the part of the placement tube 1 that passes through the cervix and enters the uterine cavity is completely covered by the protective film 10, and the top of the placement tube 1 is also covered by the protective film 10 and has an opening.

[0073] Preferably, Figures 8 to 12As shown, it also includes friction blocks 30. The surface of the protective film 10 facing away from the placement tube 1 is provided with multiple friction blocks 30. The friction blocks 30 are used to increase the roughness of the surface of the protective film 10, thereby increasing the friction force on the surface of the protective film 10; the top of the protective film 10 is in the shape of a dome or a hemisphere, and an opening is provided at the top of the protective film 10. The shape of the opening at the top of the protective film 10 is in the shape of a "cross" or a "M" shape, which is used to help the placement tube 1 to be smoothly extended; when the front end of the placement tube 1 is extended to reach the cervical opening, when entering the cervix, the protective film 10 will be subjected to a sufficiently large surface friction force to ensure that the protective film 10 and the placement tube 1 inside it slide relative to each other, so that the placement tube 1 can be extended from the opening at the top of the protective film 10, and at the same time, the protective film 10 can be folded up under the action of the surface friction force, and is blocked and stays near the cervical opening, and the placement tube 1 continues to move forward and enters the uterine cavity.

[0074] Specifically, such as Figure 11 As shown, the friction block 30 is in the shape of a circular convex point, as shown in FIG. Figure 10 As shown, the friction block 30 is in the form of a thread to increase the surface friction of the protective film 10, as shown in FIG. Figure 12 As shown, the friction block 30 is in the form of cloth fluff to increase the surface friction of the protective film 10.

[0075] The beneficial effect of the above-described optional embodiment is that the provision of the protective film 10 ensures that the placement tube 1 is always sterile and hygienic. Before the intrauterine implantable device 5 is released, the opening of the protective film 10 is covered and closed by the overlapping films on both sides. During the implantation procedure, when the placement tube 1 passes through the cervix, the protective film 10 folds up due to the friction generated by the passage, and stays at the cervix. Under the protection of the protective film 10, the placement tube 1 can enter the uterine cavity without being exposed to the vaginal environment, thereby ensuring sterile operation and physiological hygiene safety during the implantation process.

[0076] Optional, such as Figure 1 、 Figures 13 to 16 As shown, in some embodiments, the base assembly 2 includes a base 11, which is disposed in the handle 3 and has one end slidingly connected to the handle 3, the other end of the base 11 is connected to the placement tube 1, and the push rod 4 passes through the base 11 and is slidingly connected to the placement tube 1.

[0077] In the above optional embodiment, it should be noted that when the base 11 slides relative to the handle 3, the placement tube 1 is driven to move up and down. When the placement tube 1 enters the uterine cavity and reaches a predetermined position, the intrauterine implant device 5 in the placement tube 1 is fixed at a specified position by the push rod 4, and the placement tube 1 slides out of the uterus under the traction of the base 11, thereby realizing the function of releasing the device. There are many ways to connect the base 11 and the placement tube 1. The first way, such as Figure 11 and Figure 12 As shown, a uniformly distributed concave structure is provided at the lower opening of the placement tube 1, and a correspondingly distributed convex portion is provided on the base 11, which can correspond one-to-one with the convex portion on the placement tube 1 and connect together to form a stable structure with a certain mechanical strength; Figure 13 As shown, the placement tube 1 and the base 11 can also be connected by bolt connection or other methods.

[0078] The beneficial effects of the above optional embodiment are: the provision of the base 11 makes it easier to release the intrauterine implantable device 5 and enables replacement of the placement tube 1 between different patients.

[0079] Optional, such as Figure 1 As shown, in some embodiments, the base assembly 2 also includes a push-pull member 16, a slider 12 and a protrusion 17. The base 11 is provided with a protrusion 17 at one end close to the placement tube 1. One end of the push-pull member 16 abuts against the protrusion 17, and the other end of the push-pull member 16 is detachably connected to the slider 12. The slider 12 is slidably connected to the side wall of the handle 3.

[0080] In the above optional embodiment, it should be noted that the push-pull member 16 is a clamp-shaped structure.

[0081] The beneficial effects of the above optional embodiment are: Figure 19 and Figure 20 As shown, the slider 12 is softly connected to the base 11 through the push-pull member 16, so that the placement tube 1 can be pushed freely. Specifically, when the intrauterine implantable device is loaded into the placement tube, or when the placement tube is in the process of being implanted, when the slider 12 is pushed toward the placement tube 1, the push-pull member 16 does not contact the protrusion 17 on the base 11, but can directly drive the tube base assembly 2 to move as a whole by pushing the slider 12, thereby pushing out the placement tube 1 and making the placement tube in a fully extended state; when the placement tube reaches the appropriate position and the intrauterine implantable device needs to be released, the position of the push rod 4 will remain fixed, and when the slider 12 is pulled to move away from the placement tube, the push-pull member 16 will contact the protrusion 17 on the placement tube base, thereby dragging the base assembly 2 to move as a whole, thereby pulling the placement tube 1 back, and thus the device is released into the uterus.

[0082] Optional, such as Figure 13 and Figure 14 As shown, in some embodiments, the base assembly 2 further includes a pressure sensor 13 , and the pressure sensor 13 is provided on a surface of the base 11 facing away from the end where the tube 1 is placed.

[0083] In the above optional embodiments, it should be noted that, if Figure 19 and Figure 20 As shown, the pressure sensor 13 is used to detect the external force applied to the placement tube 1. The specific detection method is: through continuous measurement of the pressure sensor 13, the data obtained is calculated and evaluated by an algorithm to determine the force applied to the placement tube during implantation. The algorithm used can be to simply add the pressure values of each pressure sensor, or to treat the pressure data of each pressure sensor 13 as a vector (with magnitude and direction information), map all pressure vectors to a directional coordinate system, and then take the area of the closed curve enclosed by all pressure vectors to represent the overall force applied to the placement tube 1. In addition, other algorithms and methods can be used to convert the pressure data from multiple pressure sensors 13 into data on the overall force applied. It should be noted that when the device is loaded, the slider 12 will contact the edge of the electronic module 14, and the push-pull member 16 will not contact the protrusion 17 on the base 11. The force applied to the placement tube during implantation can be transmitted to the base 11 and then applied to the pressure sensor 13, ensuring that the structural components of the base assembly 2 do not affect the perception and measurement of the external force.

[0084] After obtaining the data from each pressure sensor 13 and the data on the overall force condition, the current implantation stage, implantation position and depth, and the angle of insertion of the implantation tube 1 can be determined based on the experimental force model of the implantation tube 1 during implantation. For example, the overall force condition data can be used to determine the position information of the implantation device during implantation. Specifically, when the force is relatively small, it can be considered that the implantation device has just entered the body and passed through the vagina. After reaching the cervix, the force condition will increase rapidly when entering the cervix, representing an increase in friction with the cervix. Then, during the process of passing through the cervix and into the uterus, the overall force condition will remain relatively stable, representing a relatively stable friction force on the implantation tube when passing through the cervix. When the implantation tube reaches the bottom of the uterine cavity, due to the obstruction of the implantation tube, the resistance (i.e., the overall force detected by the pressure sensor) will increase rapidly and there will be no flattening trend. As can be seen from the above, based on the implantation device and use method of the present invention, even when it is not necessary to measure the depth of the uterine cavity, it is still possible to reliably place the intrauterine implantable device into the uterine cavity without causing harm.

[0085] Furthermore, the use of a pressure sensor array (e.g., an array consisting of eight pressure sensors) can sense the forces acting on the placement tube in different directions. Based on a priori force distribution models, the insertion angle of the placement tube can be estimated in real time. This opens the possibility of further alerting the operator when the insertion angle is incorrect or assisting the operator in controlling the insertion angle.

[0086] The beneficial effect of the above optional embodiment is that the intrauterine implantable device 5 can be reliably placed in the uterine cavity through the provision of the pressure sensor 13 without causing damage to the uterus.

[0087] Optional, such as Figure 13 and Figure 14 As shown, in some embodiments, there are multiple pressure sensors 13 , and the multiple pressure sensors 13 are distributed on the base 11 at equal intervals.

[0088] Optional, such as Figure 1 As shown, in some embodiments, the base assembly 2 further includes an electronic module 14 . The electronic module 14 is disposed in the handle 3 , the electronic module 14 abuts against the base 11 , and the electronic module 14 is electrically connected to the pressure sensor 13 .

[0089] In the above optional embodiments, it should be noted that, if Figure 14 As shown, the circuit of the electronic module 14 includes a multiplexer 19, a signal conditioner 20, a variable gain amplifier 21, an analog-to-digital converter 22, a voltage converter 23, a battery 24, a speaker 25, a display module 26, an antenna 27, a wireless module 28 and a central processing unit 29.

[0090] Specifically, the slider 12 and the push-pull member 16 are rigidly connected, while the push-pull member 16 interacts with the protrusion 17 at the bottom of the base 11 to achieve a soft connection between the slider 12 and the electronic module 14, the pressure sensor 13 and the placement tube 1.

[0091] When the intrauterine implantable device is loaded into the placement tube 1 or when the placement tube 1 is in the process of being implanted, the slider 12 needs to slide toward the placement tube 1, so that the placement tube 1 is in a fully extended state. During this process, the slider 12 is pushed against the edge of the electronic module 14, and then the entire base assembly 2 and the placement tube 1 are pushed forward until they reach the farthest position. At the same time, in this state, the force received by the placement tube during the implantation process can be transmitted to the base 11 and then applied to the pressure sensor 13, preventing it from being restricted and affected by the slider 12 and the push-pull member 16, and being unable to sense and measure the external force.

[0092] When the placement tube reaches the desired position and the device needs to be released, the push rod 4 remains fixed while the slider 12 slides toward the end of the handle, pulling the placement tube back and releasing the device into the uterus. During this process, the slider 12 moves away from the electronic module 14, and the push-pull member 16 is pulled against the protrusion 17 on the bottom of the base 11, thereby pulling the entire base assembly 2 and placement tube 1 backward until they reach the desired position.

[0093] The beneficial effect of the above optional embodiment is that the placement device is made intelligent by the provision of the electronic module 14 .

[0094] Optional, such as Figure 1 As shown, in some embodiments, a display device 15 is further included. The display device 15 is provided on the outer wall of the handle 3 , and the display device 15 is electrically connected to the electronic module 14 .

[0095] In the above optional embodiments, it should be noted that the display device 15 can be a display module array, an LCD, a speaker, or an audio-visual module such as a speaker.

[0096] The beneficial effect of the above optional embodiment is that the display device 15 can be used to warn and guide the user to use the placement device, thereby making the placement device more convenient to use.

[0097] Optional, such as Figures 1 to 9 As shown, in some embodiments, an opening is formed at one end of the protective sleeve 7 away from the handle 3 .

[0098] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

[0099] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

Claims

1. An intrauterine device placement device, characterized in that: It comprises a placement tube (1), a base assembly (2), a handle (3), a push rod (4) and a protective layer assembly (6), wherein the handle (3) is provided with the base assembly (2), the protective layer assembly (6) is sleeved on the placement tube (1), the placement tube (1) is inserted into the handle (3) and is slidably connected to the handle (3) through the base assembly (2), the push rod (4) is inserted into the handle (3) and passes through the base assembly (2) and is slidably connected to the placement tube (1), and the push rod (4) is used to adjust the position of the intrauterine implantable device (5); The protective layer assembly (6) includes a protective sleeve (7) and a stop platform (9), wherein the protective sleeve (7) is sleeved on the end of the placement tube (1) away from the handle (3) and is slidably connected to the placement tube (1), and the end of the protective sleeve (7) away from the handle (3) is sleeved with the stop platform (9); the top of the stop platform (9) is a plane or a circular dome, and is provided with an opening, which remains closed when no force is applied, and opens to form an opening when a force is applied; The protective layer assembly (6) includes a protective film (10), the protective film (10) is sleeved on the placement tube (1), and an opening is provided at the top of the protective film (10); and further includes friction blocks (30), a surface of the protective film (10) facing away from the placement tube (1) is provided with a plurality of friction blocks (30), and the friction blocks (30) are used to increase the roughness of the surface of the protective film (10); The base assembly (2) includes a base (11), the base (11) is arranged in the handle (3), one end of the base (11) is slidably connected to the handle (3), the other end of the base (11) is connected to the placement tube (1), and the push rod (4) passes through the base (11) and is slidably connected to the placement tube (1); The base assembly (2) further includes a push-pull member (16), a slider (12) and a protrusion (17); the base (11) is provided with the protrusion (17) at one end close to the placement tube (1); one end of the push-pull member (16) abuts against the protrusion (17); the other end of the push-pull member (16) is detachably connected to the slider (12); and the slider (12) is slidably connected to the side wall of the handle (3); The base assembly (2) further includes a pressure sensor (13), and the pressure sensor (13) is provided on the surface of the base (11) at one end facing away from the placement tube (1); there are multiple pressure sensors (13), and the multiple pressure sensors (13) are evenly spaced and distributed on the base (11).

2. An intrauterine device placement device according to claim 1, characterized in that: It also includes an arc top (8), which is provided at the top end of the placement tube (1), and an opening is provided on the arc top (8). The diameter of the stop platform (9) is greater than the diameter of the protective sleeve (7), and the height of the stop platform (9) is 5 mm to 10 mm. The arc top (8) and the end of the stop platform (9) facing away from the protective sleeve (7) are both dome-shaped or hemispherical, and the opening on the arc top (8) is in the shape of a "cross" or a "M" shape.

3. The intrauterine device placement device according to claim 1, characterized in that: The top of the protective film (10) is in the shape of a dome or a hemisphere, and the opening of the top of the protective film (10) is in the shape of a "cross" or a "rice", which is used to help the placement tube (1) to extend smoothly.

4. The intrauterine device placement device according to claim 1, characterized in that: The base assembly (2) further includes an electronic module (14), the electronic module (14) being disposed in the handle (3) and abutting against the base (11), and the electronic module (14) being electrically connected to the pressure sensor (13); The pressure sensor (13) is used to detect the external force applied to the placement tube (1). The specific detection method is as follows: by continuously measuring the pressure sensor (13), the obtained data is calculated and evaluated by an algorithm to determine the force applied to the placement tube during the implantation process; the algorithm used is to simply add up the pressure values of each pressure sensor, or to regard the pressure data of each pressure sensor (13) as a vector, and by mapping all pressure vectors to a directional coordinate system, the area of the closed curve formed by all pressure vectors is taken to represent the overall force applied to the placement tube (1); after obtaining the data of each pressure sensor (13) and the data of the overall force applied, the current implantation stage, implantation position and depth, and the angle information of the placement tube (1) during the insertion process are determined based on the experimental force model of the placement tube (1) during the implantation process.

5. The intrauterine device placement device according to claim 4, characterized in that: It also includes a display device (15), which is provided on the outer side wall of the handle (3), and is electrically connected to the electronic module (14).

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