Negative pressure uterus suction operation mold for practical operation teaching

Abstract

The invention relates to the technical field of clinical teaching of gynaecology and obstetrics, and discloses a negative pressure uterine aspiration mold for practical operation teaching, comprising a mold for practical operation teaching; the uterine cavity is arranged in the mold; the adjusting assembly is arranged in the uterine cavity and used for adjusting the depth of the uterine cavity, and the pathological module is arranged in the uterine cavity; and the bleeding simulation module is arranged in the uterine cavity. The depth of the uterine cavity can be adjusted, operation requirements under different conditions can be met, the tissue clearance rate can be visually judged by embedding fluorescent particles into the simulated pregnancy object and the pathological part and cooperating with irradiation of the ultraviolet lamp, the bleeding condition can be simulated when the operation force is too large, and therefore operation is more real, and the operation efficiency is improved. And the pathological parts can be replaced by different pathological parts, so that the operation requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of obstetrics and gynecology clinical teaching, and in particular relates to a negative pressure uterine aspiration mold for practical teaching. Background Art

[0002] Vacuum aspiration is an important technique in obstetrics and gynecology, primarily used for induced abortion, removal of pregnancy residues, or diagnosis and treatment of endometrial lesions. Traditionally, physician skill training relies heavily on a "teaching model," "assistance model," or "guidance model" in a real surgical environment. However, these teaching methods face the following limitations:

[0003] 1. Ethical and safety risks: Performing teaching operations directly on patients involves medical ethical disputes, and novice operations may increase the risk of intraoperative complications such as uterine perforation and heavy bleeding.

[0004] 2. Limited teaching resources: Real cases are difficult to cover the diversity of different uterine morphologies and pathological conditions.

[0005] 3. The existing molds lack feedback from real human tissue. For example, excessive operating force may cause bleeding, and they cannot simulate key teaching scenarios such as uterine perforation and tissue residue identification during surgery.

[0006] 4. Lack of evaluation system: Traditional molds cannot understand the cleaning status and it is difficult to achieve standardized assessment.

[0007] Therefore, it is necessary to invent a vacuum aspiration mold for practical teaching to solve the above problems. Summary of the Invention

[0008] In response to the above problems, the present invention provides a vacuum aspiration mold for practical teaching to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solutions: a vacuum aspiration mold for practical teaching, comprising:

[0010] Moulds, used for practical teaching;

[0011] a uterine cavity, disposed inside the mold;

[0012] an adjusting component, disposed inside the uterine cavity, for adjusting the depth of the uterine cavity;

[0013] a pathology module, disposed inside the uterine cavity;

[0014] a bleeding simulation module, arranged inside the uterine cavity;

[0015] A simulated vagina component is provided at the bottom of the mold and can adjust the vaginal opening;

[0016] The adjustment component includes:

[0017] a first airbag, disposed inside the uterine cavity;

[0018] a cover plate connected to the top of the mold, and the first air bag connected to the bottom of the cover plate;

[0019] A first inflation component is provided on the cover plate and is used to inflate the first airbag.

[0020] Furthermore, the first inflatable component includes:

[0021] a first cylinder connected to the top of the cover plate, wherein the bottom of the first cylinder is connected to the first airbag via a first conduit;

[0022] a first piston disposed inside the first cylinder;

[0023] The first driving rod is rotatably connected to the top of the first piston, and the first driving rod is threadedly connected to the first cylinder body.

[0024] Furthermore, the bleeding simulation module includes:

[0025] a flexible strain sensor, disposed on the inner wall of the uterine cavity;

[0026] a bionic vascular network, disposed on the surface of the flexible strain sensor;

[0027] A micro peristaltic pump is arranged outside the mold, and an output end of the micro peristaltic pump is connected to the bionic vascular network.

[0028] Furthermore, the simulated vagina component includes:

[0029] a simulated vagina mold connected to the bottom of the mold;

[0030] a second airbag, the second airbag being arranged in a ring shape and being arranged on the inner wall of the simulated vagina mold;

[0031] The second inflation component is arranged outside the simulated vagina mold and is used to inject air into the interior of the second air bag.

[0032] Furthermore, the second inflatable component includes:

[0033] a second cylinder body, disposed outside the simulated vagina mold, wherein the second cylinder body is connected to the second air bag via a second conduit;

[0034] a second piston disposed inside the second cylinder;

[0035] The second driving rod is rotatably mounted on the middle portion of one side of the second piston, and the second driving rod is threadedly connected to the second cylinder body.

[0036] Furthermore, the pathology module includes:

[0037] a first magnet connected to the bottom of the first airbag;

[0038] An iron block is adsorbed on the bottom of the first magnet;

[0039] a connecting plate connected to the bottom of the iron block;

[0040] A simulated pregnancy substance is connected to the bottom of the connecting plate;

[0041] A replaceable pathology bag is arranged inside the uterine cavity.

[0042] Furthermore, the replaceable pathology kit includes:

[0043] a carrier cloth, arranged inside the uterine cavity;

[0044] Velcro, arranged on the outer side of the carrier cloth and on the inner wall of the uterine cavity, the carrier cloth and the inner wall of the uterine cavity are connected by the Velcro;

[0045] The pathological part is connected to the inner side of the carrier cloth.

[0046] Furthermore, the mold is made of hard transparent silicone, the simulated pregnancy object and the pathological part are both made of degradable gelatin, and fluorescent particles are embedded in the simulated pregnancy object and the pathological part.

[0047] Furthermore, an alarm is provided on the outside of the mold. When the pressure applied to the flexible strain sensor exceeds 3N, the alarm is triggered to sound and the micro peristaltic pump is activated.

[0048] Furthermore, the carrier cloth is specifically medical polyester spunbond non-woven fabric, and the carrier cloth is laid flat on the inner wall of the uterine cavity.

[0049] The technical effects and advantages of the present invention are as follows:

[0050] 1. The present invention can adjust the depth of the uterine cavity to meet the operational requirements in different situations. By embedding fluorescent particles in the simulated pregnancy and pathological parts, combined with ultraviolet light irradiation, the tissue clearance rate can be intuitively judged.

[0051] 2. The present invention can simulate bleeding conditions when the operating force is too large, thereby making the operation more realistic, and the pathological parts can be replaced with different pathological parts to meet the needs of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 The structure diagram of the vacuum aspiration mold for practical teaching according to the embodiment of the present invention is shown. Figure 1 ;

[0053] Figure 2 A schematic cross-sectional view of a portion of the structure of an embodiment of the present invention is shown;

[0054] Figure 3 The embodiment of the present invention is shown Figure 2 A in the middle is an enlarged structural diagram;

[0055] Figure 4 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at B in the middle;

[0056] Figure 5 A schematic structural diagram of a carrier cloth according to an embodiment of the present invention is shown;

[0057] In the figure: 1. mold; 2. uterine cavity; 3. first airbag; 4. first cylinder; 5. first piston; 6. first driving rod; 7. cover; 8. flexible strain sensor; 9. bionic vascular network; 10. micro peristaltic pump; 11. Velcro; 12. second airbag; 13. second cylinder; 14. second piston; 15. second driving rod; 16. first magnet; 17. iron block; 18. connecting plate; 19. simulated pregnancy product; 20. carrier cloth; 21. pathological part; 22. simulated vaginal mold; 23. alarm. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0059] The present invention provides a vacuum aspiration mold for practical teaching, such as Figures 1 to 5 As shown, it includes: a mold 1, a uterine cavity 2, an adjustment component, a pathology module, a bleeding simulation module, and a simulated vagina component;

[0060] The mold 1 is used for practical teaching. The uterine cavity 2 is arranged inside the mold 1. The adjustment component is arranged inside the uterine cavity 2 to adjust the depth of the uterine cavity 2. The pathology module is arranged inside the uterine cavity 2. The bleeding simulation module is arranged inside the uterine cavity 2. The simulated vagina component is arranged at the bottom of the mold 1 to adjust the vaginal diameter.

[0061] The adjustment component includes: a first airbag 3, a cover plate 7, and a first inflatable component;

[0062] The first airbag 3 is arranged inside the uterine cavity 2, and the cover plate 7 is connected to the top of the mold 1. Specifically, the cover plate 7 is made of hard silicone. The top of the mold 1 is provided with an opening, and the inner wall of the opening is provided with an annular groove. The outer side of the cover plate 7 is embedded in the annular groove. The first airbag 3 is fixedly connected to the bottom of the cover plate 7. The first inflation component is provided on the cover plate 7 for inflating the first airbag 3.

[0063] During use, the operator inserts the instrument into the uterine cavity 2 through the simulated vaginal component to operate and remove the pathology module from the uterine cavity 2. During the removal process, if the operation force is too large, the bleeding simulation module can simulate the bleeding state, making the entire simulated operation process more realistic. The depth of the uterine cavity 2 can be adjusted by adjusting the component to meet the operational training requirements of different uterine cavity 2 depths and different uterine morphologies.

[0064] like Figure 1 As shown, the first inflation assembly includes: a first cylinder 4, a first piston 5, a first driving rod 6, and a first conduit;

[0065] The first cylinder body 4 is fixedly connected to the top of the cover plate 7, the bottom of the first cylinder body 4 is connected to the first airbag 3 through the first conduit, the first piston 5 is arranged inside the first cylinder body 4, the first driving rod 6 is rotatably connected to the top of the first piston 5, and the first driving rod 6 is threadedly connected to the first cylinder body 4.

[0066] The first driving rod 6 rotates forward to make it descend along the first cylinder 4, thereby carrying the first piston 5 downward to inject the air in the first cylinder 4 into the first airbag 3 through the first catheter, so that the first airbag 3 is inflated and expanded. The first airbag 3 expands downward, so that the depth of the uterine cavity 2 can be adjusted.

[0067] like Figure 2 As shown, the bleeding simulation module includes: a flexible strain sensor 8, a bionic vascular network 9, and a micro peristaltic pump 10;

[0068] The flexible strain sensor 8 is transparent as a whole and is fixedly connected to the inner wall of the uterine cavity 2. The bionic vascular network 9 is a PDMS microchannel and is fixedly connected to the surface of the flexible strain sensor 8. The micro peristaltic pump 10 is fixed on the outside of the mold 1, and the output end of the micro peristaltic pump 10 is connected to the bionic vascular network 9.

[0069] The extraction end of the micro peristaltic pump 10 is connected to a simulated blood bag from the outside. During operation, when the pressure on the inner wall of the uterine cavity 2 exceeds the set value, the flexible strain sensor 8 controls the micro peristaltic pump 10 to extract the simulated blood in the simulated blood bag and inject it into the bionic vascular network 9, so that it flows out into the uterine cavity 2, realizing a simulated bleeding state.

[0070] like Figure 2 and Figure 4As shown, the simulated vagina assembly includes: a simulated vagina mold 22, a second air bag 12, and a second inflation assembly;

[0071] The simulated vagina mold 22 is fixedly connected to the bottom of the mold 1, the second airbag 12 is set to be ring-shaped, the second airbag 12 is fixed on the inner wall of the simulated vagina mold 22, and the second inflation component is set on the outside of the simulated vagina mold 22 for injecting air into the interior of the second airbag 12.

[0072] Air is injected into the second airbag 12 through the second inflation component to expand it, thereby shrinking the channel inside the simulated vagina mold 22, thereby adjusting the size of the channel inside the simulated vagina mold 22 to meet the operational requirements in different situations.

[0073] like Figure 4 As shown, the second inflation assembly includes: a second cylinder 13, a second piston 14, a second driving rod 15, and a second conduit;

[0074] The second cylinder body 13 is fixedly mounted on the outside of the simulated vagina mold 22, the second cylinder body 13 and the second airbag 12 are connected through a second conduit, the second piston 14 is arranged inside the second cylinder body 13, and the second drive rod 15 is rotatably mounted on the middle part of one side of the second piston 14, and the second drive rod 15 is threadedly connected to the second cylinder body 13.

[0075] The forward rotation of the second driving rod 15 causes it to move with the second piston 14 toward the simulated vagina mold 22, so that the air in the second cylinder 13 can be injected into the second airbag 12 through the second conduit, causing the second airbag 12 to expand, thereby adjusting the size of the internal channel of the simulated vagina mold 22. Conversely, the reverse rotation of the second driving rod 15 can withdraw the air in the second airbag 12, causing the second airbag 12 to deflate.

[0076] like Figure 2 and Figure 3 As shown, the pathology module includes: a first magnet 16, an iron block 17, a connecting plate 18, a simulated pregnancy material 19, and a replaceable pathology bag;

[0077] The first magnet 16 is fixedly connected to the bottom of the first airbag 3, the iron block 17 is adsorbed on the bottom of the first magnet 16, the connecting plate 18 is fixedly connected to the bottom of the iron block 17, the simulated pregnancy material 19 is connected to the bottom of the connecting plate 18, and the replaceable pathology bag is set inside the uterine cavity 2.

[0078] The cover plate 7 is removed, so that the first airbag 3, the first magnet 16, the iron block 17, the connecting plate 18, and the simulated pregnancy material 19 leave the mold 1. Then, the connecting plate 18 is pulled to make it leave the first magnet 16 with the iron block 17 and the simulated pregnancy material 19. Then, the simulated pregnancy material 19 to be replaced and its connected connecting plate 18 and iron block 17 are adsorbed and fixed to the first magnet 16. The cover plate 7 is reset, and the replacement of the simulated pregnancy material 19 is completed.

[0079] like Figure 1 and Figure 5 As shown, the replaceable pathology bag includes: a carrier cloth 20, a Velcro 11, and a pathology piece 21;

[0080] The carrier cloth 20 is arranged inside the uterine cavity 2, and the Velcro 11 is fixedly connected to the outer side of the carrier cloth 20 and the inner wall of the uterine cavity 2. The carrier cloth 20 is connected to the inner wall of the uterine cavity 2 by the Velcro 11. Specifically, the Velcro 11 in the uterine cavity 2 is located above and below the inner wall of the uterine cavity 2, and the Velcro 11 on the carrier cloth 20 is located above and below the outer side of the carrier cloth 20. The carrier cloth 20 is placed in the uterine cavity 2, and then the bottom of the carrier cloth 20 is turned outward so that the Velcro 11 below the carrier cloth 20 is combined with the Velcro 11 at the bottom of the uterine cavity 2, and the Velcro 11 above the carrier cloth 20 is combined with the Velcro 11 above the inner wall of the uterine cavity 2 to complete the installation of the carrier cloth 20. The pathological part 21 is fixedly connected to the inner side of the carrier cloth 20. The pathological part 21 can be replaced by replacing the carrier cloth 20. The pathological part 21 can be set to multiple types, and one pathological part 21 is correspondingly installed on one carrier cloth 20.

[0081] like Figure 1 and Figure 5 As shown, the mold 1 is made of hard transparent silicone, the simulated pregnancy 19 and the pathological part 21 are both made of degradable gelatin, and fluorescent particles are embedded in the simulated pregnancy 19 and the pathological part 21.

[0082] The operator uses an ultraviolet lamp to illuminate the interior of the mold 1. Since the cleaned tissue will fall onto the carrier cloth 20, when the ultraviolet light passes through the mold 1, the flexible strain sensor 8, and the bionic vascular network 9 and irradiates the carrier cloth 20, the tissue will emit fluorescence after the light passes through the carrier cloth 20 and irradiates the tissue, making it possible to intuitively judge the tissue clearance rate.

[0083] like Figure 1 and Figure 2 A controller (not shown in the figure) is provided on the outside of the mold 1. The controller is used in conjunction with the flexible strain sensor 8. An alarm 23 is provided on the outside of the mold 1. When the pressure applied to the flexible strain sensor 8 exceeds 3N, it can cooperate with the controller to trigger the alarm 23 to alarm and trigger the micro peristaltic pump 10 to work.

[0084] like Figure 1As shown, the carrier cloth 20 is specifically medical polyester spunbond non-woven fabric, and the carrier cloth 20 is laid flat on the inner wall of the uterine cavity 2 .

[0085] Medical polyester spunbond nonwoven fabric has a smooth surface and a fast water permeability, which can easily simulate blood exudation.

[0086] Working principle: When in use, the operator inserts the instrument into the uterine cavity 2 through the simulated vaginal component to operate and remove the simulated pregnancy material 19 or pathological part 21 from the uterine cavity 2. During the removal process, if the operating force is too large, that is, exceeds 3N, the pressure on the flexible strain sensor 8 exceeds 3N, and the controller cooperates to trigger the alarm 23 and trigger the micro peristaltic pump 10 to work, thereby extracting the simulated blood in the simulated blood bag and injecting it into the bionic vascular network 9, so that it flows out into the uterine cavity 2. The blood quickly seeps out through the carrier cloth 20, so that the bleeding state can be simulated, making the operation more realistic. The alarm 23 can remind the operator that the force is too large.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A vacuum aspiration mold for practical teaching, characterized in that: include: A mold (1) for conducting practical teaching; a uterine cavity (2), arranged inside the mold (1); An adjusting component, arranged inside the uterine cavity (2), for adjusting the depth of the uterine cavity (2); A pathology module is arranged inside the uterine cavity (2); A bleeding simulation module is arranged inside the uterine cavity (2); A simulated vagina component is arranged at the bottom of the mold (1) and can adjust the vaginal opening; The adjustment component includes: A first air bag (3) is arranged inside the uterine cavity (2); A cover plate (7) is connected to the top of the mold (1), and the first air bag (3) is connected to the bottom of the cover plate (7); A first inflation component is arranged on the cover plate (7) and is used to inflate the first airbag (3).

2. The vacuum aspiration mold for practical teaching according to claim 1, characterized in that: The first inflatable component comprises: A first cylinder (4) is connected to the top of the cover plate (7), and the bottom of the first cylinder (4) is connected to the first airbag (3) through a first conduit; A first piston (5) is disposed inside the first cylinder (4); A first driving rod (6) is rotatably connected to the top of the first piston (5), and the first driving rod (6) is threadedly connected to the first cylinder body (4).

3. The vacuum aspiration mold for practical teaching according to claim 2, characterized in that: The bleeding simulation module includes: a flexible strain sensor (8) arranged on the inner wall of the uterine cavity (2); A bionic blood vessel network (9) is arranged on the surface of the flexible strain sensor (8); A micro peristaltic pump (10) is arranged outside the mold (1), and an output end of the micro peristaltic pump (10) is connected to the bionic vascular network (9).

4. The vacuum aspiration mold for practical teaching according to claim 3, characterized in that: The simulated vagina component comprises: A simulated vagina mold (22) connected to the bottom of the mold (1); a second air bag (12), the second air bag (12) being arranged in a ring shape, and the second air bag (12) being arranged on the inner wall of the simulated vagina mold (22); The second inflation component is arranged outside the simulated vagina mold (22) and is used to inject air into the interior of the second air bag (12).

5. The vacuum aspiration mold for practical teaching according to claim 4, characterized in that: The second inflatable component comprises: a second cylinder (13) disposed outside the simulated vagina mold (22), wherein the second cylinder (13) and the second airbag (12) are connected via a second conduit; a second piston (14) disposed inside the second cylinder (13); The second driving rod (15) is rotatably mounted on the middle portion of one side of the second piston (14), and the second driving rod (15) is threadedly connected to the second cylinder body (13).

6. The vacuum aspiration mold for practical teaching according to claim 5, characterized in that: The pathology module includes: a first magnet (16) connected to the bottom of the first airbag (3); An iron block (17) is adsorbed on the bottom of the first magnet (16); A connecting plate (18) connected to the bottom of the iron block (17); A simulated pregnancy (19) connected to the bottom of the connecting plate (18); A replaceable pathology bag is arranged inside the uterine cavity (2).

7. The vacuum aspiration mold for practical teaching according to claim 6, characterized in that: The replaceable pathology kit includes: A carrier cloth (20) is arranged inside the uterine cavity (2); Velcro (11), arranged on the outer side of the carrier cloth (20) and on the inner wall of the uterine cavity (2), the carrier cloth (20) and the inner wall of the uterine cavity (2) are connected via the Velcro (11); The pathological part (21) is connected to the inner side of the carrier cloth (20).

8. The vacuum aspiration mold for practical teaching according to claim 7, characterized in that: The mold (1) is made of hard transparent silicone, the simulated pregnancy (19) and the pathological part (21) are both made of degradable gelatin, and fluorescent particles are embedded in the simulated pregnancy (19) and the pathological part (21).

9. The vacuum aspiration mold for practical teaching according to claim 8, characterized in that: An alarm (23) is provided on the outside of the mold (1). When the pressure applied to the flexible strain sensor (8) exceeds 3N, the alarm (23) can be triggered to sound an alarm and the micro peristaltic pump (10) can be triggered to operate.

10. The vacuum aspiration mold for practical teaching according to claim 9, characterized in that: The carrier cloth (20) is specifically a medical polyester spunbond non-woven fabric, and the carrier cloth (20) is laid flat on the inner wall of the uterine cavity (2).

Images