Uterine cavity balloon device

Abstract

The utility model discloses a uterine cavity balloon device. The uterine cavity balloon device comprises an inner catheter, an outer catheter arranged on the periphery of the inner catheter in a sleeving mode, a first balloon and an anti-disengaging ring, a first communication cavity is formed in the outer catheter, the first balloon is connected with the outer catheter, a first expansion cavity is formed in the first balloon and communicated with the first communication cavity, and the anti-disengaging ring is provided with an inflation inlet and is of a hollow structure. The volume of the anti-falling ring is in positive correlation with the volume of air in the anti-falling ring; the anti-falling ring is arranged on the periphery of the uterine cavity balloon device, and the size of the anti-falling ring is increased along with the increase of the internal air amount, so that the anti-falling ring can extrude the inner wall of the vagina to fix the uterine cavity balloon device, and the uterine cavity balloon device is prevented from slipping or shifting.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an intrauterine balloon device. Background Technology

[0002] The uterine cavity is the space of the uterus. The uterus is a single muscular organ, mainly composed of smooth muscle. It has thick walls, a small cavity, and is highly expandable. Due to the influence of pregnancy factors, the shape and size of the uterine cavity after childbirth vary from person to person. Postpartum hemorrhage in obstetric patients is usually treated by using a uterine balloon for compression and medication to stop the bleeding.

[0003] Existing intrauterine balloon devices inflate the balloon by injecting water or air, and use the balloon to compress the bleeding site to stop bleeding. However, due to the differences in the uterine cavity among different patients, current intrauterine balloon devices have technical problems such as deviation from or slippage from the bleeding site after inflating, resulting in the inability of existing intrauterine balloon devices to achieve effective hemostasis. Summary of the Invention

[0004] This application provides an intrauterine balloon device to solve the technical problem of deviation or slippage of current intrauterine balloon devices.

[0005] To address the above issues, the technical solution provided in this application is as follows:

[0006] This application discloses an intrauterine balloon device, comprising:

[0007] Internal catheter;

[0008] An external conduit is sleeved around the inner conduit, and the external conduit has a first communicating cavity;

[0009] A first balloon, fitted around the inner catheter and connected to the outer catheter, has a first expansion cavity that communicates with the first communicating cavity; and

[0010] An anti-detachment ring is fitted around the outer conduit. The anti-detachment ring has an air inlet and is hollow. The volume of the anti-detachment ring is positively correlated with the volume of air inside the anti-detachment ring.

[0011] In the intrauterine balloon device of this application, the first balloon includes at least two sub-balloons, and the volume of the sub-balloon closer to the external conduit is smaller than the volume of the sub-balloon farther from the external conduit.

[0012] In the intrauterine balloon device of this application, the outer catheter, the inner catheter, the first balloon, and the anti-loosening ring are all made of elastic material.

[0013] In the intrauterine balloon device of this application, the surface of the external catheter is provided with graduations.

[0014] In the intrauterine balloon device of this application, the intrauterine balloon device further includes a guide member disposed within the inner catheter, the elastic modulus of the guide member being less than the elastic modulus of the inner catheter.

[0015] In the intrauterine balloon device of this application, the intrauterine balloon device further includes a second balloon sleeved around the periphery of the first balloon, the second balloon having a second expansion cavity, and the first expansion cavity and the second expansion cavity not being in communication;

[0016] The external catheter also has a second communicating cavity that is not connected to the first communicating cavity, and the second communicating cavity is connected to the second expansion cavity.

[0017] In the intrauterine balloon device of this application, the length of the first communicating cavity is greater than the length of the second communicating cavity in the extension direction of the inner catheter.

[0018] In the intrauterine balloon device of this application, the elastic modulus of the second balloon is greater than that of the first balloon.

[0019] In the intrauterine balloon device of this application, the second balloon has a plurality of protrusions on its surface away from the first balloon.

[0020] In the intrauterine balloon device of this application, a pressure sensor is also provided at the end of the external catheter away from the first balloon, and the pressure sensor is used to obtain the pressure in the first communicating cavity and the second communicating cavity.

[0021] Beneficial effects: This application discloses an intrauterine balloon device; the intrauterine balloon device includes an inner catheter and an outer catheter sleeved around the inner catheter, a first balloon and an anti-dislodgement ring. The outer catheter has a first communicating cavity, the first balloon is connected to the outer catheter, the first balloon has a first expansion cavity, the first expansion cavity and the first communicating cavity are connected, the anti-dislodgement ring has an inflation port and is a hollow structure, and the volume of the anti-dislodgement ring is positively correlated with the volume of air inside the anti-dislodgement ring; this application sets an anti-dislodgement ring around the intrauterine balloon device, and the volume of the anti-dislodgement ring increases with the increase of the internal air volume, so that the anti-dislodgement ring can be squeezed against the vaginal wall to fix the intrauterine balloon device and prevent the intrauterine balloon device from slipping or shifting. Attached Figure Description

[0022] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0023] Figure 1 This is a first structural diagram of the intrauterine balloon device provided in the embodiments of this application;

[0024] Figure 2This is a second structural diagram of the intrauterine balloon device provided in the embodiments of this application;

[0025] Figure 3 for Figure 2 A bottom view of the inner and outer catheters in the intrauterine balloon device.

[0026] Figure label:

[0027] 10 internal catheters;

[0028] External catheter 20; first communicating cavity 201; second communicating cavity 202;

[0029] First balloon 30; First expansion cavity 301; Sub-balloon 310;

[0030] Anti-detachment ring 40; Inflation port 401;

[0031] Second balloon 50; second expansion chamber 501. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] Please see Figures 1 to 3 This application proposes an intrauterine balloon device 100, which includes an inner catheter 10, an outer catheter 20, a first balloon 30, and an anti-dislodgement ring 40. The outer catheter 20 is sleeved around the inner catheter 10 and has a first communicating cavity 201 inside. The first balloon 30 is sleeved around the inner catheter 10 and connected to the outer catheter 20. The first balloon 30 has a first expansion cavity 301 inside, and the first expansion cavity 301 and the first communicating cavity 201 are connected.

[0034] In this embodiment, the anti-detachment ring 40 is sleeved around the outer conduit 20. The anti-detachment ring 40 has an air inlet 401 and is a hollow structure. The volume of the anti-detachment ring 40 is positively correlated with the volume of air inside the anti-detachment ring 40.

[0035] This application provides an anti-slip ring 40 around the periphery of the intrauterine balloon device 100. After the first balloon 30 is inflated and comes into contact with the inner wall of the uterine cavity, the anti-slip ring 40 is inflated by inflating air into the air inlet 401, causing the anti-slip ring 40 to expand. That is, the volume of the anti-slip ring 40 increases with the increase of the amount of air inside. When the anti-slip ring 40 expands to the point of squeezing the inner wall of the vagina, the anti-slip ring 40 can fix the intrauterine balloon device 100, preventing the intrauterine balloon device 100 from slipping or shifting, and ensuring that the intrauterine balloon device can effectively stop bleeding.

[0036] It should be noted that, since the first connecting cavity 201 is connected to the first expansion cavity 301, this application can fill the first connecting cavity 201 with gas or water or other media to make the first balloon 30 expand and fit against the inner wall of the uterine cavity, and to stop bleeding at the bleeding site.

[0037] The technical solution of this application is described below with reference to specific embodiments.

[0038] In this embodiment, the first balloon 30 includes at least two sub-balloons 310, and the volume of the sub-balloon 310 closer to the external catheter 20 is smaller than the volume of the sub-balloon 310 farther from the external catheter 20.

[0039] Because the uterine cavity is triangular in shape, in order for the balloon to fit tightly against the inner wall of the uterine cavity after expansion, this application can provide multiple interconnected sub-balloons 310, such as attached... Figure 1 There are three sub-balloons 310 in the uterus. The sub-balloon 310 closest to the external catheter 20 has the smallest volume, the sub-balloon 310 furthest from the external catheter 20 has the largest volume, and the sub-balloon 310 in the middle has a medium volume. The three sub-balloons 310 of different sizes form an inverted triangular structure to perfectly fit the patient's uterine cavity.

[0040] In this embodiment, each of the sub-balloons 310 may be ellipsoidal when inflated, filled with water, or filled with other media.

[0041] It should be noted that the external catheter 20, the internal catheter 10, the first balloon 30, and the anti-detachment ring 40 in the intrauterine balloon device 100 of this application are all made of elastic materials, such as rubber.

[0042] In this embodiment, since the inner diameter of the vagina is small, when the first balloon 30 is in an uninflated state, the first balloon 30 can be housed in the external catheter 20 so that the intrauterine balloon device 100 of this application can smoothly enter the uterine cavity.

[0043] In this embodiment, when the intrauterine balloon device 100 enters the uterine cavity, the user cannot know the depth of the intrauterine balloon device 100, which makes it impossible for the user to accurately control the expansion state of the first balloon 30. This application provides a scale on the surface of the external catheter 20 to obtain the depth of the intrauterine balloon device 100 in real time, so as to accurately control the expansion start position of the first balloon 30.

[0044] In this embodiment, since the external catheter 20, the internal catheter 10, the first balloon 30 and the anti-detachment ring 40 are all made of elastic materials, the rigidity of the intrauterine balloon device 100 of this application is poor, which causes the intrauterine balloon device 100 to be unable to quickly enter the patient's uterine cavity.

[0045] Please see Figure 1 and Figure 2 The intrauterine balloon device 100 includes a guide (not shown) disposed within the inner catheter 10. The elastic modulus of the guide is less than that of the inner catheter 10. The guide can contact the inner catheter 10. Because the elastic modulus of the guide is smaller than that of the inner catheter 10, the guide has greater rigidity and is less prone to bending. Therefore, the user can control the guide to guide the intrauterine balloon device 100 into the uterine cavity.

[0046] In this embodiment, after the intrauterine balloon device 100 is successfully inserted, the guide can be removed from the inner catheter 10; secondly, foreign objects generated in the uterine cavity can be discharged through the inner catheter 10 to obtain the compression state between the intrauterine balloon device 100 and the inner wall of the uterine cavity.

[0047] Because the structure of the uterine cavity varies among different users, the first balloon 30 may not be able to fit the uterine cavity of all patients, resulting in differences in hemostatic effect.

[0048] Please see Figure 2 and Figure 3 The intrauterine balloon device 100 further includes a second balloon 50 sleeved around the first balloon 30, the second balloon 50 having a second expansion cavity 501, the first expansion cavity 301 and the second expansion cavity 501 not being in communication; at the same time, the external catheter 20 also has a second communicating cavity 202 not being in communication with the first communicating cavity 201, the second communicating cavity 202 being in communication with the second expansion cavity 501.

[0049] exist Figure 1Based on this, this application provides a second balloon 50 around the first balloon 30 so that when the first balloon 30 cannot cover the bleeding point, this application can fill the second communicating cavity 202 with gas or water or other media so that the second balloon 50 expands and fits the bleeding point, and stops the bleeding at the bleeding location.

[0050] Meanwhile, in order to adapt to the complex uterine cavity structure, the elastic modulus of the second balloon 50 of this application can be greater than that of the first balloon 30. That is, the second balloon 50 of this application has better elasticity. When the second connecting cavity 202 is filled with gas or water or other media, the second balloon 50 expands and fits against the inner wall of the uterine cavity that the first balloon 30 cannot cover, so as to meet the needs of differentiated uterine cavity structures.

[0051] exist Figure 2 In the structure, since the first balloon 30 is connected to the external catheter 20, and in order to make the second balloon 50 completely wrap around the first balloon 30, the position where the second balloon 50 is connected to the external catheter 20 is closer to the anti-detachment ring 40; therefore, in the extension direction of the inner catheter 10, the length of the first connecting cavity 201 is greater than the length of the second connecting cavity 202.

[0052] In the intrauterine balloon device 100 of this application, the second balloon 50 may be provided with a plurality of protrusions (not shown) on the surface away from the first balloon 30. The plurality of protrusions can increase the friction between the second balloon 50 and the inner wall of the uterine cavity, and can further prevent the intrauterine balloon device 100 from slipping or shifting.

[0053] In the intrauterine balloon device 100 of this application, the balloon structure will compress the inner wall of the uterine cavity after expansion. The balloon structure cannot expand indefinitely. Therefore, in order to avoid excessive pressure on the inner wall of the uterine cavity by the balloon structure, this application may also provide a pressure sensor (not shown) at the end of the external catheter 20 away from the first balloon 30. The pressure sensor is used to obtain the pressure in the first communicating cavity 201 and the second communicating cavity 202, so as to obtain the pressure in the first balloon 30 and the second balloon 50 in real time.

[0054] This application discloses a uterine balloon device; the uterine balloon device includes an inner catheter and an outer catheter sleeved around the inner catheter, a first balloon and an anti-dislodgement ring. The outer catheter has a first communicating cavity, the first balloon is connected to the outer catheter, the first balloon has a first expansion cavity, the first expansion cavity and the first communicating cavity are connected, and the anti-dislodgement ring has an inflation port and is a hollow structure. The volume of the anti-dislodgement ring is positively correlated with the volume of air inside the anti-dislodgement ring. This application provides an anti-dislodgement ring around the uterine balloon device, and the volume of the anti-dislodgement ring increases with the increase of the internal air volume, so that the anti-dislodgement ring can be squeezed against the vaginal wall to fix the uterine balloon device and prevent the uterine balloon device from slipping or shifting.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] The technical solutions provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions in the embodiments of this application.

Claims

1. A uterine balloon device, characterized in that, include: Internal catheter; An external conduit is sleeved around the inner conduit, and the external conduit has a first communicating cavity; A first balloon is fitted around the inner catheter and connected to the outer catheter. The first balloon has a first expansion cavity, which is connected to the first communicating cavity. as well as An anti-detachment ring is fitted around the outer conduit. The anti-detachment ring has an air inlet and is hollow. The volume of the anti-detachment ring is positively correlated with the volume of air inside the anti-detachment ring. The first balloon includes at least two sub-balloons, and the volume of the sub-balloon closer to the external catheter is smaller than the volume of the sub-balloon farther from the external catheter.

2. The intrauterine balloon device according to claim 1, characterized in that, The external catheter, the internal catheter, the first balloon, and the anti-detachment ring are all made of elastic material.

3. The intrauterine balloon device according to claim 1, characterized in that, The surface of the external conduit is marked with graduations.

4. The intrauterine balloon device according to claim 1, characterized in that, The intrauterine balloon device further includes a guide member disposed within the inner catheter, the elastic modulus of the guide member being less than the elastic modulus of the inner catheter.

5. The intrauterine balloon device according to any one of claims 1 to 4, characterized in that, The intrauterine balloon device further includes a second balloon sleeved around the first balloon, the second balloon having a second expansion cavity, and the first expansion cavity and the second expansion cavity being non-communicating; The external catheter also has a second communicating cavity that is not connected to the first communicating cavity, and the second communicating cavity is connected to the second expansion cavity.

6. The intrauterine balloon device according to claim 5, characterized in that, In the extension direction of the inner catheter, the length of the first communicating cavity is greater than the length of the second communicating cavity.

7. The intrauterine balloon device according to claim 5, characterized in that, The elastic modulus of the second balloon is greater than that of the first balloon.

8. The intrauterine balloon device according to claim 5, characterized in that, The second balloon has multiple protrusions on its surface away from the first balloon.

9. The intrauterine balloon device according to claim 5, characterized in that, The end of the external catheter away from the first balloon is also provided with a pressure sensor, which is used to obtain the pressure in the first communicating cavity and the second communicating cavity.

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