Intravaginal tampon

CN224892687UActive Publication Date: 2026-10-27NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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Patent Information

Application Number
CN202521703681.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-10-27
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

[0006]本实用新型要解决的技术问题是提供一种阴道内置式止血器,通过设置给药机构,使得本技术方案中的止血器,不仅可以通过注冰水让硅胶套膨胀变大,对患者的阴道内壁进行压迫止血,而且在硅胶套形变的过程中其外壁上的储药孔也会随之展开,储药孔展开后内部的凝血酶原粉会直接作用在患者的阴道内壁上,借助凝血酶原粉能提高对患者阴道内壁的止血效果,加快止血速度,进一步减轻患者痛苦,通过以上的设置可以解决现有的止血器,止血速度慢和止血效果不明显的问题

Benefits of technology

上述方案中,通过设置给药机构,使得本技术方案中的止血器,不仅可以通过注冰水让硅胶套膨胀变大,对患者的阴道内壁进行压迫止血,而且在硅胶套形变的过程中其外壁上的储药孔也会随之展开,储药孔展开后内部的凝血酶原粉会直接作用在患者的阴道内壁上,借助凝血酶原粉能提高对患者阴道内壁的止血效果,加快止血速度,进一步减轻患者痛苦。

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Abstract

The utility model provides a vagina built -in hemostat belongs to medical instrument technical field. Including silica gel cover, the silica gel cover is fixedly connected with cooling pipe in, the cooling pipe is installed with heat exchange pipe, the end of heat exchange pipe is installed with locking valve, the inner wall of silica gel cover with the outer wall of cooling pipe forms expansion cavity, the dosing mechanism, the dosing mechanism is used for the vagina inner wall of patient to apply hemostatic medicine. The utility model discloses through setting dosing mechanism, makes the hemostat in this technical scheme, not only can through the injection of ice water and make silica gel cover inflation bigger, the vagina inner wall of patient is carried out compression hemostasis, and in the process of silica gel cover deformation, the storage hole on its outer wall also will follow the unfolding, the thromboplastin powder in the inside of storage hole unfolding will be directly acted on the vagina inner wall of patient, with the help of thromboplastin powder can improve the hemostatic effect to the vagina inner wall of patient, speeds up the hemostasis speed, further alleviates the patient's suffering.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a vaginal internal hemostat. Background Technology

[0002] Postpartum hemorrhage is the most common complication in obstetrics. Clinically, in order to prevent occult or potential vaginal bleeding, gauze packing is generally used to compress and stop the bleeding. However, this method can cause abrasion of the vaginal wall mucosa during operation, which is painful for the mother and difficult for her to endure without anesthesia.

[0003] For example, Chinese patent CN217186272U discloses a vaginal tampon assembly, which includes a cooling tube filled with ice, a silicone layer covering the cooling tube, a heat-conducting cavity formed between the silicone layer and the cooling tube, a heat exchange tube inside the cooling tube, one end of the heat exchange tube being connected to the heat-conducting cavity and the other end extending out of the cooling tube, the heat exchange tube being used to introduce water into the heat-conducting cavity so that the silicone layer expands and abuts against the vagina, and a locking valve being provided at the end of the heat exchange tube away from the guide cavity.

[0004] The aforementioned patent reduces abrasion to the vaginal wall by inserting a packing component into the patient's vagina and fills the heat-conducting cavity with ice water through a heat exchange tube, causing the silicone layer to press against the vagina and compress it to stop bleeding. Although the expansion effect of the silicone layer can compress the vaginal wall to stop bleeding, the vaginal wall tissue has a certain degree of flexibility and can deform under external pressure. This causes the vaginal wall tissue to deform and avoid the expanded silicone layer. Therefore, relying solely on the compression of the silicone layer to stop bleeding results in an insignificant hemostatic effect and a slow hemostatic speed.

[0005] Therefore, this utility model provides a vaginal internal hemostat to meet the needs. Utility Model Content

[0006] The technical problem this invention aims to solve is to provide a vaginal internal hemostatic device. By incorporating a drug delivery mechanism, this hemostatic device not only expands by injecting ice water to compress and stop bleeding on the vaginal wall, but also expands the drug storage hole on its outer wall during the deformation of the silicone sleeve. After the drug storage hole expands, the prothrombin powder inside acts directly on the vaginal wall, improving the hemostatic effect on the vaginal wall, accelerating the hemostasis speed, and further reducing patient pain. This design solves the problems of slow hemostasis and ineffective hemostasis in existing hemostatic devices.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An internal vaginal hemostatic device includes a silicone sleeve, a cooling tube fixedly connected inside the silicone sleeve, a cap screwed to the end of the cooling tube, a handle fixedly connected to the outer wall of the cap, a heat exchange tube installed inside the cooling tube, and a locking valve installed at the end of the heat exchange tube; a push head fixedly connected to the top of the silicone sleeve, the outer wall of the top of the cooling tube being fixed to the inner wall of the push head, an expansion cavity being formed between the inner wall of the silicone sleeve and the outer wall of the cooling tube, one end of the heat exchange tube passing through the cap and extending outside the cap, the other end of the heat exchange tube passing through the cooling tube and extending into the expansion cavity, and a limit ring fixedly connected to the bottom of the silicone sleeve; and a drug delivery mechanism for applying a hemostatic agent to the vaginal wall of the patient, the drug delivery mechanism being connected to the silicone sleeve.

[0008] Optionally, the drug delivery mechanism includes a drug storage hole formed on the outer wall of the silicone sleeve, the drug storage hole being filled with prothrombin powder, the drug storage hole being composed of an inner cavity and an outer cavity, the inner cavity and the outer cavity being interconnected.

[0009] Optionally, both the inner and outer cavities have an elliptical profile.

[0010] Optionally, the size of the inner cavity is larger than the size of the outer cavity.

[0011] Optionally, a cross groove is formed on the outer wall of the outer cavity.

[0012] Optionally, a layer of plastic film is wrapped around the outer wall of the silicone sleeve.

[0013] Optionally, the drug storage holes are evenly distributed on the outer wall of the silicone sleeve.

[0014] Optionally, the drug storage hole and the silicone sleeve are integrally injection molded structures.

[0015] Optionally, the inner wall of the silicone sleeve at the end away from the push head abuts against the outer wall of the cooling pipe, and a first sealing ring is installed at the position where the silicone sleeve abuts against the cooling pipe.

[0016] Optionally, a second sealing ring is installed at the junction of the heat exchange tube and the cover.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, by setting up a drug delivery mechanism, the hemostatic device in this technical solution can not only expand the silicone sleeve by injecting ice water to compress and stop bleeding on the vaginal wall of the patient, but also the drug storage hole on its outer wall will open during the deformation of the silicone sleeve. After the drug storage hole opens, the prothrombin powder inside will directly act on the vaginal wall of the patient. With the help of prothrombin powder, the hemostatic effect on the vaginal wall of the patient can be improved, the hemostasis speed can be accelerated, and the patient's pain can be further reduced.

[0018] By designing an inner and outer cavity within the drug reservoir, the inner cavity, with its outward-protruding arc-shaped contour near the silicone sheath, pushes out the prothrombin powder within the reservoir during expansion, ensuring no residue remains. Since the inner cavity is larger than the outer cavity, the outer cavity acts as a barrier outside the inner cavity before expansion, preserving the prothrombin powder intact within the reservoir before the silicone sheath expands. The cross-groove design creates a segmented structure at the end of the outer cavity, allowing both the inner and outer cavities to fully expand during the silicone sheath's expansion, further ensuring no residue remains and allowing the prothrombin powder to act entirely on the vaginal wall, thus improving hemostasis. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1 A three-dimensional structural diagram of an internal vaginal hemostat; Figure 2 A three-dimensional cross-sectional view of an internal vaginal hemostat. Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 A three-dimensional structural diagram of an internal vaginal hemostat; Figure 5 A three-dimensional cross-sectional view of an internal vaginal hemostat. Figure 6 for Figure 5 Enlarged structural diagram at point B.

[0021] Figure label: 1. Silicone sleeve; 101. Push head; 102. Limiting ring; 2. Drug storage hole; 201. Inner cavity; 202. Outer cavity; 203. Cross groove; 3. Cooling pipe; 4. Cover; 401. Handle; 5. Expansion chamber; 6. Heat exchange pipe; 7. Locking valve; 8. First sealing ring; 9. Second sealing ring.

[0022] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0023] The following is a detailed description of a vaginal internal hemostat provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0024] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0025] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0026] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0027] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly. Example

[0028] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a vaginal internal hemostat, including a silicone sleeve 1, a cooling tube 3 fixedly connected inside the silicone sleeve 1, a cap 4 screwed to the end of the cooling tube 3, a handle 401 fixedly connected to the outer wall of the cap 4, a heat exchange tube 6 installed inside the cooling tube 3, a locking valve 7 installed at the end of the heat exchange tube 6, a push head 101 fixedly connected to the top of the silicone sleeve 1, the top outer wall of the cooling tube 3 fixed to the inner wall of the push head 101, an expansion cavity 5 formed between the inner wall of the silicone sleeve 1 and the outer wall of the cooling tube 3, one end of the heat exchange tube 6 passing through the cap 4 and extending outside the cap 4, the other end of the heat exchange tube 6 passing through the cooling tube 3 and extending into the expansion cavity 5, and a limit ring 102 fixedly connected to the bottom of the silicone sleeve 1.

[0029] In this technical solution, the silicone sleeve 1, the push head 101, and the limiting ring 102 are integrally injection molded structures. The push head 101 has an arc-shaped contour, which can reduce the friction generated when the silicone sleeve 1 is pushed into the vaginal wall of the patient, thereby reducing the patient's discomfort. The silicone sleeve 1 is normally flat, which means that the silicone sleeve 1 will not generate a large friction with the vaginal wall of the patient when it is pushed into the vagina, thereby improving the comfort of the vaginal wall of the patient during the insertion of the silicone sleeve 1.

[0030] After the silicone sleeve 1 is inserted into the patient's body, the locking valve 7 at the end of the heat exchange tube 6 is opened and ice water is injected into the heat exchange tube 6. The ice water enters the expansion chamber 5 along the heat exchange tube 6. As the ice water is continuously injected, the expansion chamber 5 will gradually expand and enlarge, causing the silicone sleeve 1 to enlarge and press against the inner wall of the patient's vagina, thereby achieving the effect of compressing and stopping bleeding on the inner wall of the patient's vagina.

[0031] Furthermore, medical staff remove the cap 4 from the end of the cooling tube 3 by unscrewing the cap 4, and then add ice cubes into the cooling tube 3. The ice cubes are used to cool the ice water in the heat exchange tube 6, thereby lowering the temperature of the ice water in the expansion chamber 5. This provides continuous ice treatment to the patient's vaginal wall, reducing the pain in the vaginal wall and improving hemostasis and patient comfort.

[0032] In this embodiment, as Figures 1 to 3 As shown, the inner wall of the silicone sleeve 1 at the end away from the push head 101 abuts against the outer wall of the cooling pipe 3, and a first sealing ring 8 is installed at the position where the silicone sleeve 1 abuts against the cooling pipe 3, and a second sealing ring 9 is installed at the intersection of the heat exchange pipe 6 and the cover 4.

[0033] In this technical solution, the silicone sleeve 1 has a gradually tilted structure. One end of the push head 101 is larger than the end of the limiting ring 102. This design gives the bottom of the silicone sleeve 1 an inward squeezing elastic force. Under the action of the elastic force, the bottom of the silicone sleeve 1 fits tightly with the cooling pipe 3, thus ensuring that the expansion chamber 5 will not leak during water injection. In addition, the end of the cooling pipe 3 and the silicone sleeve 1 are sealed and fixed by the first sealing ring 8. The first sealing ring 8 further ensures the sealing of the expansion chamber 5. After the hemostat is used, the medical staff pulls the silicone sleeve 1 outward, causing the end of the silicone sleeve 1 to deform and move away from the cooling pipe 3, creating a gap. This allows the ice water in the expansion chamber 5 to drain from the end of the silicone sleeve 1. This design can improve the efficiency of ice water drainage from the expansion chamber 5.

[0034] The second sealing ring 9 between the heat exchange tube 6 and the cover 4 is designed to improve the sealing between the heat exchange tube 6 and the cover 4, thereby ensuring that the water generated during the melting of ice in the cooling tube 3 will not flow out from the gap at the junction of the heat exchange tube 6 and the cover 4.

[0035] As one implementation method in this embodiment, such as Figures 1 to 3 As shown, the drug delivery mechanism is used to apply hemostatic drugs to the vaginal wall of the patient. The drug delivery mechanism is connected to the silicone sleeve 1. The drug delivery mechanism includes a drug storage hole 2 opened on the outer wall of the silicone sleeve 1. The drug storage hole 2 is filled with prothrombin powder. The drug storage holes 2 are evenly distributed on the outer wall of the silicone sleeve 1. The drug storage hole 2 and the silicone sleeve 1 are integrally injection molded structures. A layer of plastic film is wrapped around the outer wall of the silicone sleeve 1.

[0036] In this technical solution, by opening a drug storage hole 2 on the outer wall of the silicone sleeve 1, the prothrombin powder inside the drug storage hole 2 is discharged during the deformation and expansion of the silicone sleeve 1. Specifically, during the expansion process, the silicone sleeve 1 changes from a flat state to a bulging state, so the outer wall of the silicone sleeve 1 will unfold, and the drug storage hole 2 will also deform and unfold, so that the prothrombin powder inside the drug storage hole 2 is discharged and comes into contact with the inner wall of the patient's vagina. The prothrombin powder can improve the hemostatic effect on the inner wall of the patient's vagina, accelerate the hemostasis speed, and further reduce the patient's pain.

[0037] After the silicone sleeve 1 is manufactured, air is injected into the heat exchange tube 6 to deform the silicone sleeve 1 and enlarge it. Then, the enlarged silicone sleeve 1 is placed into the container holding the prothrombin powder. The silicone sleeve 1 is shaken and rotated to ensure that the prothrombin powder is in full contact with the outer wall of the silicone sleeve 1. Then, the locking valve 7 is opened to expel the air inside the silicone sleeve 1 and restore it to its flat state. When the silicone sleeve 1 has fully recovered its deformation, the originally expanded drug storage hole 2 will close again. At this time, the prothrombin powder will be stored in the drug storage hole 2. After the silicone sleeve 1 is removed from the container of prothrombin powder, a layer of plastic film is wrapped around its surface. The plastic film is used to isolate and protect the prothrombin powder inside the drug storage hole 2, preventing the prothrombin powder from leaking out of the drug storage hole 2 due to vibration or shaking during transportation. Example

[0038] As one implementation method in this embodiment, such as Figures 4 to 6 As shown, the medicine storage hole 2 is composed of two parts: an inner cavity 201 and an outer cavity 202. The inner cavity 201 and the outer cavity 202 are interconnected. Both the inner cavity 201 and the outer cavity 202 have elliptical contours. The size of the inner cavity 201 is larger than the size of the outer cavity 202. A cross groove 203 is provided on the outer wall of the outer cavity 202.

[0039] To ensure that the prothrombin powder in the drug storage hole 2 can be completely emptied during the expansion of the silicone sleeve 1, the internal contour of the drug storage hole 2 is refined. The side of the inner cavity 201 near the silicone sleeve 1 is an outwardly protruding arc-shaped contour. This design allows the protruding contour of the silicone sleeve 1 to push out the prothrombin powder in the drug storage hole 2 during the deformation process, ensuring that the prothrombin powder will not remain in the drug storage hole 2.

[0040] Furthermore, since the size of the inner cavity 201 is larger than that of the outer cavity 202, the outer cavity 202 blocks the outer side of the inner cavity 201 before deformation and unfolding, and the opening between the outer cavity 202 and the silicone sleeve 1 is small, thus ensuring that the drug in the drug storage hole 2 will not leak after the medical staff removes the plastic film. This setting can also prevent the thrombin powder in the drug storage hole 2 from leaking due to the contact friction between the silicone sleeve 1 and the inner wall of the patient's vagina during the insertion of the silicone sleeve 1 into the patient's body, ensuring that the thrombin powder is completely preserved in the drug storage hole 2 before the silicone sleeve 1 expands.

[0041] Furthermore, by creating a cross groove 203 on the outer cavity 202, the end of the outer cavity 202 is a segmented structure. This allows the inner cavity 201 and the outer cavity 202 to fully expand during the expansion and deformation of the silicone sleeve 1, further ensuring that the prothrombin powder will not remain in the drug storage hole 2. This allows the prothrombin powder to act completely on the vaginal wall of the patient, improving the hemostatic effect.

[0042] The working principle of the technical solution provided by this utility model is as follows: During use, medical personnel push the flat silicone sleeve 1 onto the inner wall of the patient's vagina, then open the locking valve 7 at the end of the heat exchange tube 6 and inject ice water into the heat exchange tube 6. After the ice water is injected, the locking valve 7 is closed, and the ice water will enter the expansion chamber 5 along the heat exchange tube 6. As the ice water is continuously injected, the expansion chamber 5 will gradually expand and enlarge, causing the silicone sleeve 1 to enlarge and press against the inner wall of the patient's vagina, thereby achieving the effect of hemostasis by compressing the inner wall of the patient's vagina. During the expansion process, the surface of the silicone sleeve 1 changes from a flat state to a bulging state. At this time, the outer wall of the silicone sleeve 1 will unfold, and the drug storage hole 2 will also deform and unfold, allowing the prothrombin powder inside the drug storage hole 2 to be discharged and come into contact with the inner wall of the patient's vagina. The prothrombin powder can improve the hemostatic effect on the inner wall of the patient's vagina and accelerate the hemostasis speed.

[0043] When it is necessary to add prothrombin powder to the drug storage hole 2, the operator injects air into the heat exchange tube 6 to deform the silicone sleeve 1, then places the enlarged silicone sleeve 1 into the container holding the prothrombin powder, shakes and rotates the silicone sleeve 1 to ensure that the prothrombin powder is in full contact with the outer wall of the silicone sleeve 1, and then opens the locking valve 7 to expel the air inside the silicone sleeve 1 and restore it to its flat state. When the silicone sleeve 1 has fully recovered its deformation, the originally expanded drug storage hole 2 will close again, at which point the prothrombin powder will be stored in the drug storage hole 2, thus completing the drug addition operation.

[0044] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vaginal internal hemostat, comprising a silicone sleeve, characterized in that, A cooling pipe is fixedly connected inside the silicone sleeve. A cap is screwed to the end of the cooling pipe. A handle is fixedly connected to the outer wall of the cap. A heat exchange pipe is installed inside the cooling pipe. A lock valve is installed at the end of the heat exchange pipe. A pusher head is fixedly connected to the top of the silicone sleeve. The outer wall of the top of the cooling tube is fixed to the inner wall of the pusher head. An expansion cavity is formed between the inner wall of the silicone sleeve and the outer wall of the cooling tube. One end of the heat exchange tube passes through the cover and extends to the outside of the cover. The other end of the heat exchange tube passes through the cooling tube and extends into the expansion cavity. A limit ring is fixedly connected to the bottom of the silicone sleeve. A drug delivery device for applying a hemostatic agent to the vaginal wall of a patient, the drug delivery device being connected to the silicone sleeve.

2. The vaginal implantable hemostat according to claim 1, characterized in that, The drug delivery mechanism includes a drug storage hole formed on the outer wall of the silicone sleeve. The drug storage hole is filled with prothrombin powder. The drug storage hole consists of an inner cavity and an outer cavity, which are interconnected.

3. The vaginal implantable hemostat according to claim 2, characterized in that, Both the inner and outer cavities have elliptical outlines.

4. The vaginal implantable hemostat according to claim 2, characterized in that, The size of the inner cavity is larger than the size of the outer cavity.

5. The vaginal implantable hemostat according to claim 2, characterized in that, A cross-shaped groove is formed on the outer wall of the outer cavity.

6. The vaginal implantable hemostat according to claim 2, characterized in that, A layer of plastic film is wrapped around the outer wall of the silicone sleeve.

7. The vaginal implantable hemostat according to claim 2, characterized in that, The drug storage holes are evenly distributed on the outer wall of the silicone sleeve.

8. The vaginal implantable hemostat according to claim 2, characterized in that, The drug storage hole and the silicone sleeve are integrally injection molded structures.

9. The vaginal internal hemostat according to claim 1, characterized in that, The inner wall of the silicone sleeve at the end away from the push head abuts against the outer wall of the cooling pipe, and a first sealing ring is installed at the position where the silicone sleeve abuts against the cooling pipe.

10. The vaginal implantable hemostat according to claim 1, characterized in that, A second sealing ring is installed at the junction of the heat exchange tube and the cover.

Citation Information

Patent Citations

  • Vagina packing assembly

    CN217186272U