Magnetic connection type placenta separation training model

Abstract

This utility model relates to the field of medical teaching model technology and discloses a magnetically connected placental separation training model, including a base. The base has a mounting groove at its top, and an upper shell is housed within the mounting groove. An opening / closing port is located on the right side of the base. Mounting posts are fixedly connected to the front and rear ends of the upper shell. A silicone layer is fixedly connected to the inner wall of the base, and Velcro hooks are fixedly connected to the outer side of the silicone layer. A fetal model is placed inside the base, and a metal plate is fixedly connected to the umbilical position of the fetal model. A magnet is attached to the outside of the metal plate, and the magnet attracts the metal plate. An umbilical cord is fixedly connected to the top of the magnet, and a placental model is fixedly connected to the end of the umbilical cord. In this utility model, a bidirectional threaded rod drives two clamping arms to be pulled out from the slots on both sides of the mounting posts, thereby enabling quick disassembly of the upper shell for easy cleaning and disinfection of the model's interior.

Description

Technical Field

[0001] This utility model relates to the field of medical teaching model technology, specifically a magnetically connected placental separation training model. Background Technology

[0002] Placental separation training is a specialized practical training program for obstetric medical staff (medical students, midwives, obstetricians, etc.) to master clinical skills related to "placental separation and delivery." Its core objective is to simulate clinical scenarios, enabling participants to become proficient in the operational procedures, judgment criteria, and emergency management methods for placental separation under both normal and abnormal conditions, thereby reducing risks in real clinical practice. Training models are used during placental separation training.

[0003] The shells of existing obstetric training models are mostly fastened with bolts, and disassembly and assembly require tools to operate one by one, which is cumbersome and time-consuming. It is not convenient to quickly and flexibly replace fetal models and placental models, making it difficult to adapt to the needs of different training scenarios. At the same time, due to the inconvenience of disassembly and assembly, stains are easily left during cleaning and disinfection, affecting hygiene.

[0004] To address the aforementioned issues, a magnetic connection-based placental detachment training model is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a magnetically connected placental separation training model, which solves the problems in the prior art where it is inconvenient to quickly and flexibly replace fetal and placental models, making it difficult to adapt to different training scenarios. At the same time, the inconvenience of disassembly and assembly during cleaning and disinfection can easily leave stains, affecting hygiene.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetically connected placental separation training model, comprising a base, a mounting groove on the top of the base, an upper shell disposed within the mounting groove, an opening on the right side of the base, mounting posts fixedly connected to the front and rear ends of the upper shell, a silicone layer fixedly connected to the inner wall of the base, a Velcro hook fixedly connected to the outer side of the silicone layer, a fetal model disposed within the base, a metal sheet fixedly connected to the umbilical position of the fetal model, a magnet disposed on the outside of the metal sheet, the magnet and the metal sheet being attracted to each other, an umbilical cord fixedly connected to the top of the magnet, a placental model fixedly connected to the end of the umbilical cord, mounting seats fixedly connected to the front and rear ends of the base, a limiting groove on the top of the mounting seat, a bidirectional threaded rod penetrating and rotatably connected within the limiting groove, a knob fixedly connected to the end of the bidirectional threaded rod, evenly distributed through holes on the outer side of the knob, clamping arms threadedly connected to both sides of the outer ring of the bidirectional threaded rod, locking components fixedly connected to the right sides of the front and rear ends of the base, the locking components being disposed outside the knob, and positioning holes on both sides of the bottom of the upper shell.

[0007] By adopting the above technical solution, the two clamping arms are pulled out from the slots on both sides of the mounting post by the bidirectional threaded rod, so that the upper shell can be quickly disassembled, which facilitates cleaning and disinfection of the inside of the model, or replacement with fetal models and placental models of different sizes to simulate placental attachment scenarios of singleton, twin, or different gestational weeks; at the same time, the adhesive position of the Velcro can be flexibly adjusted to simulate different attachment positions of the placenta such as the anterior wall, posterior wall, and lateral wall, thereby improving the comprehensiveness of training.

[0008] As a further description of the above technical solution: the locking component includes a fixing post, which is fixedly connected to the outer side of the base. A telescopic groove is provided on the inner side of the fixing post, and an insert post is slidably connected in the telescopic groove. A spring is fixedly connected to the inner side of the insert post, and the spring is fixedly connected to the inner wall of the telescopic groove. A guide groove is provided on the top of the fixing post, and the guide groove communicates with the telescopic groove.

[0009] By adopting the above technical solution, the locking component can control the extension and retraction of the insert. The insert of the locking component is inserted into the corresponding through hole of the knob, thereby locking the knob and preventing the bidirectional threaded rod from rotating accidentally.

[0010] As a further description of the above technical solution: the outer side of the placenta model is fixedly connected with a hook and loop fastener, and the hook and loop fastener are bonded to each other.

[0011] By adopting the above technical solution, the placental model is tightly bonded to the hook side of the silicone layer through the hook side of the Velcro, simulating the physiological attachment state of the placenta on the uterine wall. The bonding strength can match the operating force required for the actual placenta removal, so it will not fall off easily, and can also be removed with reasonable force.

[0012] As a further description of the above technical solution: the bottom of the clamping arm is set in the limiting groove, and the clamping arm is set on both sides of the mounting column.

[0013] By adopting the above technical solution, a locking block corresponding to the locking slots on both sides of the mounting column is installed on the inner side of the clamping arm.

[0014] As a further description of the above technical solution: slots are provided on both sides of the mounting column.

[0015] By adopting the above technical solution, the upper shell can be easily fixed and installed using the slot and clamping arm.

[0016] As a further description of the above technical solution: two positioning posts are fixedly connected to both sides of the top of the mounting groove, and the positioning posts are set in the positioning holes.

[0017] By adopting the above technical solution, the positioning pins in the mounting slot are precisely inserted into the positioning holes at the bottom of the upper shell, thereby achieving positioning alignment of the upper and lower shells and avoiding assembly misalignment.

[0018] As a further description of the above technical solution: a push post is slidably connected in the guide groove, and the push post is fixedly connected to the insert post.

[0019] By adopting the above technical solution, the guide groove is L-shaped, and the corner of the L-shape facilitates the limiting of the push column.

[0020] As a further description of the above technical solution: the insertion post passes through and is disposed within the through hole.

[0021] By adopting the above technical solution, the knob can be limited by inserting the plunger into the through hole of the knob.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a magnetically connected placental detachment training model. A bidirectional threaded rod drives two clamping arms to pull out from the slots on both sides of the mounting post, allowing for quick disassembly of the upper shell. This facilitates cleaning and disinfection of the model's interior, or allows for the replacement of fetal and placental models of different sizes to simulate placental attachment scenarios in singleton, twin, or different gestational weeks. Simultaneously, the Velcro's adhesive position can be flexibly adjusted to simulate different attachment positions such as the anterior, posterior, and lateral walls of the placenta, enhancing the comprehensiveness of the training. Furthermore, a locking component controls the extension and retraction of the insertion post. By inserting the insertion post into the corresponding through-hole of the knob, the knob is locked, preventing accidental rotation of the bidirectional threaded rod and improving the stability of the upper shell installation. Attached Figure Description

[0023] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the umbilical cord structure of this utility model; Figure 3 This is a cross-sectional view of the upper shell of this utility model; Figure 4 This is an exploded view of the locking component of this utility model.

[0024] In the diagram: 1. Base; 2. Mounting slot; 3. Upper shell; 4. Opening / closing port; 5. Mounting post; 6. Slot; 7. Silicone layer; 8. Velcro surface; 9. Placenta model; 10. Velcro hook surface; 11. Umbilical cord; 12. Magnet; 13. Fetal model; 14. Metal sheet; 15. Mounting base; 16. Limiting slot; 17. Two-way threaded rod; 18. Knob; 19. Through hole; 20. Clamping arm; 21. Fixing post; 22. Telescopic slot; 23. Guide slot; 24. Insert post; 25. Spring; 26. Push post; 27. Positioning post; 28. Positioning hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0027] Reference Figure 1-4 This utility model discloses a magnetically connected placental removal training model, comprising a base 1 with a mounting groove 2 at its top, which serves as a limiting feature. An upper shell 3 is housed within the mounting groove 2. Both the upper shell 3 and the base 1 are made of transparent material, facilitating observation of the accuracy of the internal removal operation. An opening 4 is located on the right side of the base 1, allowing the trainee to insert their hand for operation. Mounting posts 5 are fixedly connected to the front and rear ends of the upper shell 3, providing a secure mounting. A silicone layer 7 is fixedly connected to the inner wall of the base 1 to simulate the soft texture of the human uterine wall. A Velcro hook 10 is fixedly connected to the outer side of the silicone layer 7. A fetal model 13 is set inside the base 1. A metal piece 14 is fixedly connected to the umbilical position of the fetal model 13. A magnet 12 is set on the outside of the metal piece 14. The magnet 12 and the metal piece 14 magnetically attract each other, realizing the detachable connection between the umbilical cord and the fetal model. This is suitable for the separation operation after placental detachment, simulating the connection relationship of the real umbilical cord 11. The magnetic attraction force is moderate, which facilitates the separation of the fetus and the umbilical cord 11 after placental detachment. The umbilical cord 11 is fixedly connected to the top of the magnet 12. The umbilical cord 11 is made of silicone. The placental model 9 is fixedly connected to the end of the umbilical cord 11. The front and rear ends of the base 1 are fixedly connected to the mounting base 15, which serves as a fixed support. The top of the mounting base 15 has a limiting groove 16, which serves as a limiting groove. A bidirectional threaded rod 17 is rotatably connected through the limiting groove 16. The outer rings on both sides of the bidirectional threaded rod 17 are provided with opposing threaded rings. A knob 18 is fixedly connected to the end of the bidirectional threaded rod 17, which can drive the bidirectional threaded rod 17 to rotate. Evenly distributed through holes 19 are provided on the outer side of the knob 18. Clamping arms 20 are threadedly connected to both sides of the outer ring of the bidirectional threaded rod 17, which can drive the clamping arms 20 to move relative to or away from each other. Locking components are fixedly connected to the right sides of the front and rear ends of the base 1, and the locking components are located on the outer side of the knob 18. Positioning holes 28 are provided on both sides of the bottom of the upper shell 3, which serve to position the upper shell 3.

[0028] Reference Figure 4The locking assembly includes a fixing post 21, which is fixedly connected to the outer side of the base 1. A telescopic groove 22 is formed on the inner side of the fixing post 21, and an insert post 24 is slidably connected within the telescopic groove 22. A spring 25 is fixedly connected to the inner side of the insert post 24, and the spring 25 is fixedly connected to the inner wall of the telescopic groove 22. By pushing the push post 26 outward, the push post 26 disengages from the corner of the L-shaped guide groove 23, and the spring 25 resets, thereby driving the insert post 24 to extend out of the telescopic groove 22 and insert into the corresponding through hole 19 on the outer side of the knob 18, locking the knob 18. A guide groove 23 is formed at the top of the fixing post 21, and the guide groove 23 communicates with the telescopic groove 22. The guide groove 23 is L-shaped, and the corner of the L-shape facilitates the limiting of the push post 26. The push post 26 is slidably connected within the guide groove 23, and the push post 26 is fixedly connected to the insert post 24, which passes through and is positioned within the through hole 19. The locking component allows the insertion post 24 to extend and retract. The insertion post 24 of the locking component is inserted into the through hole 19 corresponding to the knob 18, thereby locking the knob 18 and preventing the bidirectional threaded rod 17 from rotating accidentally.

[0029] Reference Figure 1-4 The placental model 9 is fixedly connected to a Velcro surface 8 on its outer side, which is installed on the front, back, and side walls of the base 1. The Velcro surface 8 and the Velcro hook surface 10 are bonded together, and the bonding position of the Velcro can be flexibly adjusted to simulate different attachment positions of the placenta, such as the anterior, posterior, and side walls, improving the comprehensiveness of training. The placental model 9 is tightly bonded to the Velcro hook surface 10 of the silicone layer 7 via the Velcro surface 8, simulating the physiological attachment state of the placenta on the uterine wall. The bonding strength matches the operating force required for real placental removal, ensuring it won't easily detach but can be removed with appropriate force. The bottom of the clamping arm 20 is set within the limiting groove 16, and the clamping arm 20 is located on both sides of the mounting post 5. The inner side of the clamping arm 20 is equipped with a locking block corresponding to the locking slots 6 on both sides of the mounting post 5. The mounting post 5 has locking slots 6 on both sides, which, in conjunction with the clamping arm 20, facilitate the fixed installation of the upper shell 3. Two positioning posts 27 are fixedly connected to both sides of the top of the mounting groove 2, and the positioning posts 27 are located within positioning holes 28. The positioning pin 27 in the mounting slot 2 is precisely inserted into the positioning hole 28 at the bottom of the upper shell 3 to achieve positioning alignment of the upper and lower shells and avoid assembly misalignment.

[0030] Working principle: A mounting groove 2 is formed at the top of the base 1. After the upper shell 3 is embedded in the mounting groove 2, the positioning post 27 in the mounting groove 2 is precisely inserted into the positioning hole 28 at the bottom of the upper shell 3, achieving positioning alignment of the upper and lower shells and preventing assembly misalignment. When the knob 18 is rotated, the bidirectional threaded rod 17 drives the two clamping arms 20 to move relative to each other along the limiting groove 16. Finally, the insert of the clamping arm 20 is inserted into the slot 6 of the mounting post 5, firmly fixing the upper shell 3 to the base 1 and preventing the upper shell 3 from loosening during training. A silicone layer 7 is fixedly connected to the inner wall of the base 1. The silicone layer 7 simulates the soft texture of the human uterine wall and provides a basic carrier for placental attachment. A Velcro hook surface 10 is fixedly connected to the outer side of the silicone layer 7, forming a detachable adhesive structure with the Velcro rough surface 8 on the outer side of the placental model 9. The placental model 9 is tightly bonded to the Velcro hook surface 10 of the silicone layer 7 through the Velcro rough surface 8, simulating the physiological attachment state of the placenta on the uterine wall. The adhesive strength can match the operating force required for real placental removal, ensuring it will not easily fall off and can be removed with appropriate force. The fetal model 13 has a metal plate 14 fixedly connected to its umbilical position. The placental model 9 is connected to a magnet 12 via the umbilical cord 11. The magnet 12 and the metal plate 14 attract each other, achieving a detachable connection between the fetus and the placenta. This simulates the real connection of the umbilical cord 11, and the magnetic attraction is moderate, facilitating the separation of the fetus and the umbilical cord 11 after the placenta is detached. During disassembly, pushing the push post 26 of the locking component outward causes the insertion post 24 to compress the spring 25 and retract into the telescopic groove 22. At this time, the insertion post 24 is pulled out from the through hole 19 of the knob 18. Finally, the push post 26 enters the corner of the L-shaped guide groove 23 for limiting. Then, the knob 18 can be rotated in the opposite direction to drive the two clamping arms 20 to move in opposite directions, releasing the limiting of the mounting post 5, and allowing the upper shell 3 to be disassembled.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetically connected placental detachment training model, comprising a base (1), characterized in that: The base (1) has a mounting groove (2) on its top, and an upper shell (3) is provided inside the mounting groove (2). The base (1) has an opening (4) on its right side. Mounting posts (5) are fixedly connected to the front and rear ends of the upper shell (3). A silicone layer (7) is fixedly connected to the inner wall of the base (1). A Velcro hook (10) is fixedly connected to the outer side of the silicone layer (7). A fetal model (13) is provided inside the base (1). A metal piece (14) is fixedly connected to the navel of the fetal model (13). A magnet (12) is provided on the outside of the metal piece (14), and the magnet (12) and the metal piece (14) attract each other. An umbilical cord (11) is fixedly connected to the top of the magnet (12). The umbilical cord (11) is fixedly connected to a placental model (9). The base (1) is fixedly connected to a mounting seat (15) at both the front and rear ends. The mounting seat (15) has a limiting groove (16) at the top. A bidirectional threaded rod (17) is rotatably connected through the limiting groove (16). A knob (18) is fixedly connected to the end of the bidirectional threaded rod (17). A uniformly distributed through hole (19) is opened on the outside of the knob (18). Clamping arms (20) are threaded on both sides of the outer ring of the bidirectional threaded rod (17). Locking components are fixedly connected to the right side of both the front and rear ends of the base (1), and the locking components are located on the outside of the knob (18). Positioning holes (28) are opened on both sides of the bottom of the upper shell (3).

2. The magnetically connected placental detachment training model according to claim 1, characterized in that: The locking assembly includes a fixing post (21), which is fixedly connected to the outside of the base (1). A telescopic groove (22) is provided on the inner side of the fixing post (21). A plug (24) is slidably connected in the telescopic groove (22). A spring (25) is fixedly connected to the inner side of the plug (24), and the spring (25) is fixedly connected to the inner wall of the telescopic groove (22). A guide groove (23) is provided on the top of the fixing post (21), and the guide groove (23) communicates with the telescopic groove (22).

3. The magnetically connected placental detachment training model according to claim 1, characterized in that: The placental model (9) is fixedly connected to the outer side with a hook and loop fastener (8), and the hook and loop fastener (8) and the hook and loop fastener (10) are bonded to each other.

4. The magnetically connected placental detachment training model according to claim 1, characterized in that: The bottom of the clamping arm (20) is set in the limiting groove (16), and the clamping arm (20) is set on both sides of the mounting column (5).

5. The magnetically connected placental detachment training model according to claim 1, characterized in that: The mounting column (5) has slots (6) on both sides.

6. The magnetically connected placental detachment training model according to claim 1, characterized in that: The mounting groove (2) has two fixedly connected positioning posts (27) on both sides of the top, and the positioning posts (27) are set in the positioning holes (28).

7. The magnetically connected placental detachment training model according to claim 2, characterized in that: A push post (26) is slidably connected in the guide groove (23), and the push post (26) is fixedly connected to the insert post (24).

8. The magnetically connected placental detachment training model according to claim 2, characterized in that: The insert (24) passes through and is disposed within the through hole (19).

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