Disposable uterine lifting device

Abstract

This utility model discloses a disposable uterine manipulator, including a manipulator body, a manipulator rod, a guide rod inserted inside the manipulator rod, and an expansion airbag (annular airbag) surrounding the manipulator rod. A fixing airbag for uterine manipulation is connected to the guide rod. The fixing airbag includes multiple directional expansion airbags arranged circumferentially around the guide rod. A limiting strip is provided on the inner wall of the directional expansion airbag along the length of the guide rod, and a limiting portion is provided on the limiting strip. The expansion airbag and the fixing airbag are respectively connected to an air pump via gas pipelines. By inflating the expansion airbag, it can adapt to vaginas of different sizes and shapes, and also perfectly and evenly act on the entire fornix, providing a favorable environment for subsequent uterine manipulation. Simultaneously, inflating the fixing airbag fills the entire uterine cavity, effectively meeting the needs of uterine manipulation. Furthermore, the expansion airbag and the fixing airbag can be used as disposable consumables, effectively reducing the risk of cross-infection from surgical instruments.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a disposable uterine lifter. Background Technology

[0002] With the continuous development of medicine, gynecological laparoscopic surgery is divided into two types: pneumoperitoneum-assisted and pneumoperitoneum-free. Regardless of the method, it is often necessary to maneuver the uterus and adjust its position to perform surgical treatment. This requires a specialized medical device called a uterine manipulator, which is commonly used as a surgical aid to assist surgeons in completing the procedure. The uterine manipulator mainly consists of a central guide rod, a cervical fixator, and a dome cup. The cervical fixator has a cervical support at the front, with a threaded tapered end. A central channel is axially opened inside the cervical fixator, through which the central guide rod passes. The dome cup surrounds the cervical fixator, with its front inner diameter greater than or equal to the diameter of the cervical support, forming the cup body. The rear narrows to form a handle, with a screw at the end of the handle to fix the dome cup in a specific position on the cervical fixator. These three different components are organically combined, solving problems encountered during laparoscopic total hysterectomy such as gas leakage after vaginal incision, difficulty in maneuvering the uterus, and blurred visibility of the boundary between the cervix and vaginal wall. This is particularly beneficial for the complete removal of the cervix.

[0003] Existing technology, such as the laparoscopic hysterectomy uterine manipulator air-proof cover disclosed in application number CN202321697515.2, addresses the problem that existing devices easily contaminate the hands of the patient and have poor air-proof performance. The proposed solution includes a manipulator rod with a guide rod inserted inside. An outer tube is fitted onto the manipulator rod, and a handle and a manipulator cup are fixedly installed on the outer tube. A protective mechanism is provided on the outer tube, comprising a left fixing ring and a right fixing ring rotatably connected. An insert plate is fixedly installed on the left fixing ring, and an insertion hole is formed on the right fixing ring. The insert plate and the insertion hole cooperate with each other. A return spring is fixedly installed on the insert plate, and a trapezoidal pin is fixedly connected to the return spring. While this technical solution significantly improves the air-proof performance, the risk of cross-infection remains due to the reusable nature of the device. Therefore, the existing uterine manipulator still needs further improvement. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a disposable uterine lifter that can reduce the risk of infection.

[0005] According to a first aspect of the present invention, a disposable uterine lifter includes a uterine lifter body, the uterine lifter body includes a uterine lifter rod, a guide rod is inserted into the uterine lifter rod, and an expansion airbag is provided outside the uterine lifter rod, the expansion airbag being an annular airbag.

[0006] The guide rod is connected to a fixed airbag for lifting the uterus. The fixed airbag includes a plurality of directional expansion airbags arranged circumferentially around the guide rod. At least one limiting strip is provided on the inner wall of the directional expansion airbag along the length direction of the guide rod. Several limiting parts are provided on the limiting strip along the length direction of the limiting strip.

[0007] The inflatable airbag and the fixed airbag are respectively connected to the air pump through gas pipelines.

[0008] The disposable uterine lifter according to the embodiments of this utility model has at least the following beneficial effects:

[0009] Inflating the expansion balloon allows it to adapt to vaginas of different sizes and shapes, while also providing a perfect and even effect on the entire fornix, creating a favorable environment for subsequent uterine manipulation. Inflating the fixation balloon fills the entire uterine cavity, effectively meeting the needs of uterine manipulation. Furthermore, both the expansion and fixation balloons can be used as disposable consumables, effectively reducing the risk of cross-infection from surgical instruments.

[0010] According to some embodiments of the present invention, the guide rod is hollow, and the air tube connecting the air pump and the fixed airbag is disposed in the hollow guide rod.

[0011] According to some embodiments of the present invention, the fixed airbag further includes an annular tracheal female interface that is respectively connected to each of the directional expansion airbags, and an annular tracheal male interface is provided on the guide rod. The annular tracheal male interface is connected to the air pump through multiple air pipes, and the annular tracheal female interface and the annular tracheal male interface are adapted to be inserted into each other.

[0012] According to some embodiments of the present invention, the spacing of the limiting portion gradually decreases from the end closer to the cervix to the side farther away from the cervix.

[0013] According to some embodiments of the present invention, the distance between two adjacent limiting portions is not greater than the height of the limiting portion.

[0014] According to some embodiments of this utility model, the lifting rod is covered with an outer tube, the inflatable airbag is fitted onto the outer tube, and the lifting rod and the outer tube are sealed together by a corrugated pipe.

[0015] According to some embodiments of this utility model, the outer tube has a hollow conical structure, and the end with the smaller diameter faces the cervix.

[0016] According to some embodiments of the present invention, the cross-section of the limiting part is rectangular, upright trapezoidal, inverted trapezoidal, or has a structure with a triangular upper end and a rectangular lower end.

[0017] According to some embodiments of this utility model, when not inflated, the central axis of each of the limiting parts intersects perpendicularly with the central axis of the guide rod.

[0018] According to some embodiments of this utility model, both the fixed airbag and the inflatable airbag are made of TPU material.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a disposable uterine lifter according to an embodiment of the present invention.

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0023] Figure 3 This is a partial structural diagram of the directional expansion airbag of the disposable uterine lifter in its uninflated state, according to an embodiment of this utility model.

[0024] Figure 4 This is a partial structural diagram of the directional expansion airbag of the disposable uterine lifter in the inflated state according to an embodiment of the present invention.

[0025] Figure 5 This is a partial structural diagram illustrating the use scenario of the disposable uterine lifter according to an embodiment of the present invention.

[0026] 10. Lifting rod; 20. Guide rod; 21. Circular endotracheal male connector; 30. Inflatable airbag; 40. Directional dilation airbag; 41. Limiting strip; 42. Limiting part; 43. Circular endotracheal female connector; 50. Outer tube. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] refer to Figure 1 , Figure 2 as well as Figure 3 As shown, the disposable uterine lifter according to an embodiment of the present invention includes a uterine lifter body, which includes a lifting rod 10. A guide rod 20 is inserted inside the lifting rod 10, and an expansion airbag 30 is sleeved on the lifting rod 10. The expansion airbag 30 is an annular airbag. A fixed airbag for lifting the uterus is connected to the guide rod 20. The fixed airbag includes a plurality of directional expansion airbags 40 arranged circumferentially around the guide rod 20. At least one limiting strip 41 is provided on the inner wall of the directional expansion airbag 40 along the length direction of the guide rod 20. A plurality of limiting parts 42 are provided on the limiting strip 41 along the length direction of the limiting strip 41. The expansion airbag 30 and the fixed airbag are respectively connected to an air pump (not shown in the figure) through a gas pipeline (not shown in the figure).

[0032] In actual use, by inflating the expansion balloon 30, it can be adapted to vaginas of different sizes and shapes, and can also act perfectly and evenly on the entire fornix, providing a favorable environment for subsequent uterine manipulation. At the same time, inflating the fixation balloon fills the entire uterine cavity, effectively meeting the needs of uterine manipulation. Moreover, the expansion balloon 30 and the fixation balloon can be used as disposable consumables, effectively reducing the risk of cross-infection of surgical instruments.

[0033] In some specific embodiments of this utility model, the spacing of the limiting portions 42 gradually decreases from the end near the cervix to the side away from the cervix.

[0034] Specifically, the distance between two adjacent limiting parts 42 is no greater than the height of the limiting part 42.

[0035] More specifically, the cross-section of the limiting part 42 is rectangular, upright trapezoidal, inverted trapezoidal, or has a triangular upper end and a rectangular lower end.

[0036] Preferably, in the uninflated state, the central axis of each limiting part 42 intersects perpendicularly with the central axis of the guide rod 20.

[0037] refer to Figure 3 , Figure 4 as well as Figure 5 As shown, it should be noted that when the directional dilation balloon 40 is inflated, due to the mutual restraint of adjacent directional dilation balloons 40, the maximum deformation direction of the directional dilation balloon 40 is along the radial direction of the guide rod 20 and moves away from the central axis of the guide rod 20. At the same time, due to the presence of the restraining part 42, when the directional dilation balloon 40 deforms and bends under air pressure, the adjacent restraining part 42 will restrict and hinder the deformation and bending of the directional dilation balloon 40 where it is located. Due to the above settings, the distance between the adjacent restraining parts 42 far from the cervix is ​​larger, which makes the surface of the corresponding directional dilation balloon 40 relatively less resistant and thus more likely to deform. As a result, the outer diameter of the part of the directional dilation balloon 40 far from the cervix is ​​larger than the outer diameter of the part of the directional dilation balloon 40 near the cervix. This satisfies the need for uterine lifting, and also avoids the part of the directional dilation balloon 40 near the cervix from being too bulging and affecting the surgical field. It also avoids surgical instruments from accidentally touching the part of the directional dilation balloon 40 near the cervix and affecting the operation.

[0038] In some specific embodiments of this utility model, the guide rod 20 is hollow, and the air tube connecting the air pump and the fixed airbag is set in the hollow guide rod 20.

[0039] Preferably, the fixed airbag also includes an annular tracheal female interface 43 that is connected to each of the directional expansion airbags 40 respectively, and an annular tracheal male interface 21 is provided on the guide rod 20. The annular tracheal male interface 21 is connected to the air pump through multiple air tubes respectively, and the annular tracheal female interface 43 and the annular tracheal male interface 21 are adapted to be inserted into each other.

[0040] The above design allows for quick assembly and disassembly of the fixed airbag, facilitating the replacement of consumables.

[0041] In some specific embodiments of this utility model, the uterine lift rod 10 is covered by an outer tube 50, and the inflatable balloon 30 is fitted onto the outer tube 50. The uterine lift rod 10 and the outer tube 50 are sealed together by a corrugated tube (not shown in the figure). This design ensures airtightness while allowing the uterine lift rod 10 to have a wider adjustment range to meet surgical needs. Furthermore, due to the extensibility of the corrugated tube, the outer tube 50 along with the inflatable balloon 30 can be placed in the vagina before the uterine lift rod 10 is inserted into the vagina and passes through the cervix into the uterine cavity.

[0042] In some specific embodiments of this utility model, the outer tube 50 has a hollow conical structure, with the smaller diameter end facing the cervix. This design allows for easy and smooth insertion into the vagina even before the inflatable balloon 30 is inflated.

[0043] In some specific embodiments of this utility model, both the fixing airbag and the inflatable airbag 30 are made of TPU material. Specifically, TPU material is thermoplastic polyurethane, a type of elastomer that can be plasticized by heating and dissolved by solvents. It has excellent comprehensive properties such as high strength, high toughness, wear resistance, and oil resistance, and good processing performance. It is a commonly used technical solution in the prior art and will not be described in detail here.

[0044] Working principle:

[0045] First, the inflatable balloon 30 is fitted onto the outer tube 50, and the guide rod 20 is inserted into the uterine lifting rod 10. Then, the annular endotracheal male interface 21 is connected to the annular endotracheal female interface 43, and the fixed balloon is fitted onto the guide rod 20 to complete the installation of the fixed balloon. After placing the outer tube 50 and the inflatable balloon 30 in the vagina, the inflatable balloon 30 is inflated until the vagina is filled. Then, the uterine lifting rod 10 is inserted into the vagina and passes through the cervix into the uterine cavity. At the same time, the fixed balloon is inflated to complete the uterine lifting operation. Then, subsequent operations can be performed according to the surgeon's needs.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A disposable uterine lifting device, comprising a device body, characterized in that, The lifting device body includes a lifting rod (10), a guide rod (20) is inserted inside the lifting rod (10), and an expansion airbag (30) is provided outside the lifting rod (10). The expansion airbag (30) is an annular airbag. The guide rod (20) is connected to a fixed airbag for lifting the uterus. The fixed airbag includes a plurality of directional expansion airbags (40) arranged circumferentially around the guide rod (20). At least one limiting strip (41) is provided on the inner wall of the directional expansion airbag (40) along the length direction of the guide rod (20). A plurality of limiting parts (42) are provided on the limiting strip (41) along the length direction of the limiting strip (41). The inflatable airbag (30) and the fixed airbag are respectively connected to the air pump through gas pipelines.

2. The disposable uterine lifter according to claim 1, characterized in that, The guide rod (20) is hollow, and the air tube connecting the air pump and the fixed airbag is set in the hollow guide rod (20).

3. The disposable uterine lifter according to claim 2, characterized in that, The fixed airbag also includes an annular tracheal female interface (43) that is connected to each of the directional expansion airbags (40). The guide rod (20) is provided with an annular tracheal male interface (21). The annular tracheal male interface (21) is connected to the air pump through multiple air pipes. The annular tracheal female interface (43) and the annular tracheal male interface (21) are adapted to be plugged in.

4. The disposable uterine lifter according to claim 1, characterized in that, The spacing of the limiting portion (42) gradually decreases from the end closer to the cervix to the side farther away from the cervix.

5. The disposable uterine lifter according to claim 4, characterized in that, The distance between two adjacent limiting parts (42) is not greater than the height of the limiting part (42).

6. The disposable uterine lifter according to claim 1, characterized in that, The uterine lifting rod (10) is covered with an outer tube (50), and the inflatable airbag (30) is fitted onto the outer tube (50). The uterine lifting rod (10) and the outer tube (50) are sealed together by a corrugated pipe.

7. The disposable uterine lifter according to claim 6, characterized in that, The outer tube (50) has a hollow conical structure, with the smaller diameter end facing the cervix.

8. The disposable uterine lifter according to claim 1, characterized in that, The cross-section of the limiting part (42) is rectangular, upright trapezoidal, inverted trapezoidal, or has a triangular upper end and a rectangular lower end.

9. The disposable uterine lifter according to claim 8, characterized in that, When not inflated, the central axis of each of the limiting parts (42) intersects perpendicularly with the central axis of the guide rod (20).

10. The disposable uterine lifter according to claim 1, characterized in that, Both the fixed airbag and the inflatable airbag (30) are made of TPU material.

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