Simulation teaching aid for childbirth operation simulation

Abstract

The invention provides a simulation teaching aid for childbirth operation simulation, and belongs to the technical field of midwifery training teaching models. In order to solve the problems that an existing teaching aid cannot combine the work of a patient with the actual operation of medical staff to completely simulate the whole delivery process, and the teaching effect is poor, a simulated uterine contraction assembly and a simulated boosting assembly connected with the simulated uterine contraction assembly are additionally arranged in a simulated human body, so that the simulated uterine contraction assembly and the simulated boosting assembly are arranged in the simulated human body; when the simulated uterine contraction assembly extrudes the simulated uterus to simulate uterine contraction, the simulated boosting assembly extrudes the simulated uterus towards the side, provided with the simulated vaginal orifice, in the simulated human body to simulate the compression strength of organs in the body of a patient and the strength of persons such as delivery assistants and nurses to extrude the uterus of a pregnant woman, so that the delivery process is completely displayed; and the clinical practice ability of medical staff is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of midwifery training teaching models, and in particular relates to a simulation teaching aid for simulating delivery operations. Background Art

[0002] Natural vaginal delivery refers to a method of delivery in which the fetus is delivered vaginally under the premise that the fetus develops normally, the pregnant woman's pelvis develops normally, the pregnant woman is in good physical condition, and safety is guaranteed. Natural vaginal delivery is the most ideal method of delivery. It does not cause much damage to the mother and the fetus, and the postpartum recovery is relatively fast with fewer complications. The mother can get out of bed and walk on the day of delivery. Therefore, among the many existing medical and nursing trainings, midwifery training is one of the most important trainings.

[0003] The patent with the publication number CN206907323U discloses a simulation model of uterine contraction of pregnancy, including: an outer sac in the shape of a uterus, the lower end of the outer sac is open, a closed inner sac is arranged in the outer sac, a connection part is arranged at the lower part of the inner sac to connect the outer sac, a first airbag is formed between the upper part of the inner sac above the connection part and the outer sac, the first airbag is filled with gas, a second airbag is formed inside the inner sac, the second airbag is filled with water and a fetus model is arranged, the thickness of the sac skin at the bottom of the inner sac is less than the thickness of the sac skin at the upper part of the inner sac, and the inner sac and the outer sac are both made of elastic materials; when in use, water is injected into the second airbag through a water injection nozzle, and after the first airbag is inflated, the upper part of the airbag (i.e., the uterine bottom) is manually squeezed rhythmically to simulate the rhythm, polarity and symmetry of uterine contraction. Under continuous squeezing, the fetus in the second airbag is forced to gradually move downward, the tubular opening of the outer sac gradually expands, the simulated cervical canal gradually disappears, and the pressure at the lower end of the inner sac gradually increases until it ruptures here, simulating the membrane rupture process. After rupture of the membrane, the water will not flow out quickly because the fetal head is pressing against the lower opening. Eventually the fetus is delivered from the rupture of the internal sac, and the entire air sac shrinks, simulating the contraction effect of uterine contractions.

[0004] The above technical solution is to simulate uterine contractions by medical staff manually squeezing the airbag regularly. However, this requires medical staff to control the time and strength of each squeezing, which is complicated to operate. Moreover, in actual operation, the patient's uterus is compressed by the internal organs, and midwives, nurses and others will squeeze the pregnant woman's belly to help the fetal head enter the birth canal smoothly. However, the simulation model provided by the above technical solution cannot enable medical staff to combine uterine contractions with actual operations to truly and completely simulate the entire process of childbirth, and the teaching effect is poor.

[0005] Therefore, there is a need for a teaching mold that can simulate uterine contractions, the force of the mother's internal organs pressing on the uterus, the midwife squeezing the pregnant woman's belly, and helping the fetal head to smoothly enter the birth canal, so as to fully display the entire process of childbirth, facilitate medical staff to learn and train, and improve their clinical practice ability. Summary of the invention

[0006] The purpose of the invention is to overcome the problem that the existing teaching aids cannot combine the work of patients and the actual operation of medical staff to truly and completely simulate the entire process of childbirth, and the teaching effect is poor.

[0007] In order to achieve the above-mentioned purpose, the technical idea adopted by the present invention is: to add a simulated uterine contraction component and a simulated booster component connected to the simulated uterine contraction component in the simulated human body, so that while the simulated uterine contraction component squeezes the simulated uterus to simulate uterine contractions, the simulated booster component squeezes the simulated uterus toward the side of the simulated human body where a simulated vaginal opening is provided, to simulate the pressure on the patient's internal organs, as well as the force with which midwives, nurses and others will squeeze the pregnant woman's uterus, thereby truly and completely simulating and displaying the entire process of childbirth and improving the clinical practice ability of medical staff.

[0008] Based on the above technical ideas, the technical solution adopted by the present invention is: A simulation teaching aid for simulating childbirth operations, comprising: a simulated human body, a simulated vagina and a simulated uterus, and also comprising: A driving assembly is provided on the simulated human body and is located between the simulated human body and the simulated uterus; A uterine contraction simulation component connected to the driving component; The simulated boosting component is connected to the simulated uterine contraction component.

[0009] In the above technical solution, preferably, the driving component includes: A support rod, the bottom end of which is connected to the simulated human body; The rotary motor is arranged on the top end of the support rod, and the output end of the rotary motor is connected to the simulated uterine contraction component.

[0010] Further limitations on the above technical solution include: The take-up wheel is connected to the output end of the rotating motor. One end of the contraction rope is connected to the tightening wheel, and the other end is connected to a through ring arranged on the simulated human body after being wound around the simulated uterus.

[0011] The above technical solution is further limited, and the simulation booster component includes: A fan blade rod is connected to an end of the take-up wheel away from the rotating motor; A transmission sheet is sleeved on the fan blade rod; The first push rod is connected to the upper end of the transmission sheet.

[0012] The above technical solution is further limited in that the first push rod is a V-shaped structure.

[0013] The above technical solution is further limited, and the simulation booster component also includes: A second push rod, one end of which is slidably connected to the simulated human body; A linkage rod, one end of which is connected to an end of the second push rod away from the simulated human body, and the other end of which is connected to the first push rod; The third push rod has one end connected to the transmission sheet and the other end in contact with the simulated uterus.

[0014] The above technical solution is further limited, and the linkage rod includes: A transmission gear connected to the third push rod through a third connecting rod; A first rack, one end of which is meshed with the transmission gear and the other end of which is connected to the first push rod via a first connecting rod; One end of the second rack is meshed and connected with a side of the transmission gear away from the first rack, and the other end is connected with the second push rod through a second connecting rod.

[0015] The above technical solution is further limited in that the ends of the first push rod and the second push rod are provided with V-shaped boosting plates.

[0016] The above technical solution is further limited in that the first connecting rod and the second connecting rod have the same structure and are both telescopic rods. Beneficial Effects

[0017] 1. The present invention, through the joint design of a simulated uterus, a simulated uterine contraction component and a simulated boosting component, can simulate uterine contractions by squeezing the simulated uterus with the simulated uterine contraction component, and at the same time, can squeeze the simulated uterus toward the side of the simulated human body with a simulated vaginal opening through the simulated boosting component to simulate the pressure on the patient's internal organs, as well as the force of squeezing the uterus of a pregnant woman by midwives, nurses and other personnel, thereby fully demonstrating the changes of the uterus during childbirth and improving the clinical practice ability of medical staff.

[0018] 2. The simulation teaching for simulating delivery operation provided by the present invention can not only demonstrate delivery operation, but also help medical staff learn postpartum care skills training, such as uterine massage, postpartum hemorrhage management, etc.

[0019] 3. The simulated uterus provided by the present invention is also provided with a simulated fetal membrane, and the simulated fetus is also provided in the simulated fetal membrane. In this way, during the process of simulating uterine contraction by the simulated uterine contraction component, the simulated fetus moves toward the simulated vaginal opening under the joint action of the simulated uterine contraction component and the simulated booster component until the needle and thread at the opening of the simulated fetal membrane are completely broken, and the simulated fetus is delivered. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a simulation teaching aid for simulating childbirth operations provided by an embodiment of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 for Figure 1 The enlarged view of point B in the middle; Figure 4 for Figure 1 A schematic diagram of the structure of the device shown in another perspective; Figure 5 A schematic diagram of the connection relationship between the simulated uterine contraction component and the simulated booster component; Figure 6 It is a schematic diagram of the connection relationship between the fan blade rod and the transmission sheet; Figure 7 It is a structural schematic diagram of a transmission plate; Figure 8 for Figure 7 Front view of the device shown.

[0022] Fig. 9 It is a schematic diagram of the connection relationship between the tightening wheel and the fan blade rod; Fig.10 for Figure 7 The coordination diagram of the middle transmission plate and the fan blade of the fan blade rod; Fig.11 for Figure 5 a top view of the device shown; Fig.12 for Figure 1 A schematic diagram of the structure of the device shown in another perspective; Fig.13 It is a schematic diagram of the connection relationship between the tightening rope and the passing ring; Fig.14 for Figure 1 A schematic diagram of the structure of the device shown in another perspective; Fig.15 is a perspective view of a second putter; Fig.16 is a structural schematic diagram of a first push rod; Fig.17 for Fig.16 A half-section view of the device shown; Fig.18is a schematic structural diagram of a third push rod; Fig.19 for Fig.18 A half-section view of the device shown.

[0023] Among them, 1. driving assembly; 11. supporting rod; 12. rotating motor; 2. Simulated uterine contraction component; 21. Tightening wheel; 22. Tightening rope; 23. Passing ring; 24. Fourth connecting rod; 3. Simulated booster assembly; 31. Blade rod; 31a. Blade; 32. Transmission plate; 32a. Limiting plate; 33. First push rod; 33a. Upper push rod; 33b. Piston cylinder; 33c. Lower push rod; 34. Second push rod; 34a. V-shaped fixing cylinder; 34b. Sliding rod; 35. Linkage rod; 35a. Transmission gear; 35b. First rack; 35c. Second rack; 36. Third push rod; 36a. Upper push rod of the third push rod; 36b. Hydraulic piston cylinder of the third push rod; 36c. Lower push rod of the third push rod; 37. Third connecting rod; 38. First connecting rod; 39. Second connecting rod; 4. Simulate human body; 5. Simulate vagina; 6. Simulate uterus; 7. Simulate fetal membrane; 71. Opening; 8. Simulate fetus; 9. V-shaped booster piece. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, features stated as “first” or “second” may explicitly or implicitly include one or more of such features.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The inventors have found that when the current childbirth teaching mold is used, medical staff are required to manually squeeze the airbag regularly to simulate uterine contractions. However, this requires medical staff to control the time and strength of each squeezing, which is complicated to operate. Moreover, in actual operation, the patient's uterus is subjected to the pressure of internal organs, and midwives, nurses and others will squeeze the pregnant woman's belly to help the fetal head enter the birth canal smoothly. However, the simulation model provided by the above technical solution cannot enable medical staff to combine uterine contractions with actual operations to truly and completely simulate the entire process of childbirth, and the teaching effect is poor.

[0030] Based on the above findings, the present application provides a simulation teaching aid for simulating childbirth operations, which includes a simulated human body 4, a simulated vagina 5, and a simulated uterus 6; wherein a simulated fetal membrane 7 is provided in the simulated uterus 6, a simulated fetus 8 is provided in the simulated fetal membrane 7, and a driving component 1, a simulated uterine contraction component 2, and a simulated boosting component 3 are provided between the simulated human body 4 and the simulated uterus 6; The present application achieves good teaching effect by 1. setting up a simulated boosting component 3 to simulate uterine delivery, in which the medical staff helps the parturient to give birth, and applies a thrust outside the parturient's body, as well as simulating the pressure of the parturient's internal organs on the uterus; 2. by setting up a simulated uterine contraction component 2, there is no need for the medical staff to manually squeeze the uterus to simulate uterine contractions; 3. Both the simulated uterine contraction component 2 and the simulated boosting component 3 are connected to the driving component 1, so that while uterine contractions are simulated by the simulated uterine contraction component 2, the simulated boosting component 3 is used to simulate the thrust applied outside the parturient's body by the medical staff to help the fetal head smoothly enter the birth canal, so as to fully display the entire process of delivery, so that the medical staff can learn and train, improve their clinical practice ability, further improve the real effect, and thus further improve the teaching effect.

[0031] Example 1 This embodiment provides a simulation teaching aid for simulating childbirth operations, such as Figure 1-19 As shown, it includes a simulated human body 4, a simulated vagina 5 and a simulated uterus 6; wherein, a simulated fetal membrane 7 is provided in the simulated uterus 6, a simulated fetus 8 is provided in the simulated fetal membrane 7, and a driving component 1, a simulated uterine contraction component 2 and a simulated boosting component 3 are provided between the simulated human body 4 and the simulated uterus 6.

[0032] Specifically, the simulated human body 4 is made of a hard material, and for example, the simulated human body 4 is made of plastic.

[0033] The simulated vagina 5 and the simulated uterus 6 are both made of elastic materials, and for example, the simulated vagina 5 and the simulated uterus 6 are both made of silicone. One end of the simulated vagina 5 is connected to the simulated uterus 6, and the other end is connected to the simulated uterus 6; the lower end of the simulated uterus 6 is fixedly connected to the simulated human body 4 through a fixing column.

[0034] In actual application, an opening 71 is provided at one end of the simulated fetal membrane 7 close to the simulated vagina 5, and the opening 71 is sutured with needle and thread, so that when the simulated fetus 8 squeezes the simulated fetal membrane 7 multiple times, the simulated fetus 8 will stretch the needle and thread at the opening 71 of the simulated fetal membrane 7, simulating the rupture of the membrane during delivery, that is, the simulated fetus 8 squeezes the opening 71 of the simulated fetal membrane 7 under the combined action of the simulated uterine contraction component 2 and the simulated thrust component 3 until the suture of the opening 71 is disconnected, the needle and thread at the opening 71 are all broken, the opening 71 is completely stretched open by the simulated fetus 8, and the simulated fetus 8 squeezes the simulated fetal membrane 7 multiple times and is delivered from the simulated vagina 5 to complete the delivery.

[0035] In order to facilitate medical staff to observe and learn, the simulated human body 4, simulated vagina 5, simulated uterus 6 and simulated fetal membrane 7 are all provided with observation windows so that medical staff can observe the delivery process.

[0036] like Figures 1 to 3 As shown, the driving assembly 1 includes a support rod 11 and a rotating motor 12; the support rod 11 is vertically arranged in the simulated human body 4, and the support rod 11 is located on the side of the simulated uterus 6; the lower end of the support rod 11 is fixedly connected to the simulated human body 4, the upper end of the support rod 11 is fixedly connected to the bottom of the rotating motor 12, and the output end of the rotating motor 12 and the support rod 11 are arranged perpendicular to each other.

[0037] In practical applications, the output end of the rotary motor 12 is connected to the simulated uterine contraction component 2 .

[0038] like Figure 2 , 12 As shown in Figure 13, the simulated uterine contraction assembly 2 includes a tightening wheel 21, a tightening rope 22, a through ring 23 and a fourth connecting rod 24; wherein the fourth connecting rod 24 is vertically arranged on the simulated human body 4, and the lower end of the fourth connecting rod 24 is fixedly connected to the simulated human body 4, and the upper end of the fourth connecting rod 24 is fixedly connected to the through ring 23; Specifically, one end of the tightening rope 22 passes through the ring 23 and is fixedly connected to the tightening wheel 21, and the other end is fixedly connected to the outer surface of the ring 23 after it goes around the simulated uterus 6. In this way, the tightening rope 22 forms a storage space; when in use, the rotary motor 12 rotates, and the rotary motor 12 drives the tightening wheel 21 to rotate, so that the tightening rope 22 is wound around the tightening wheel 21, so that the storage space formed by the tightening rope 22 is reduced, and then the tightening rope 22 tightens the simulated uterus 6 to simulate uterine contraction during childbirth.

[0039] In actual application, the tightening rope 22 is located at the part of the simulated uterus 6 away from the simulated vagina 5, so as to simulate the contraction of the bottom of the uterus and make the simulated uterine contraction during childbirth more realistic.

[0040] The tightening wheel 21 is connected to the simulated boosting assembly 3 so that while simulating uterine contraction, the simulated boosting assembly 3 is used to simulate the pressure of the patient's internal organs on the uterus, as well as the thrust used by medical staff to help the parturient give birth.

[0041] like Figure 2-11 As shown, the simulated booster assembly 3 includes a fan blade rod 31, a transmission plate 32, a first push rod 33, a second push rod 34, a linkage rod 35 and a third push rod 36; wherein the first push rod 33, the second push rod 34 and the third push rod 36 are arranged in a triangle, which can squeeze the entire bottom of the simulated uterus 6 forward.

[0042] The blade rod 31 is coaxially arranged with the tightening wheel 21, and the blade rod 31 is fixedly connected with the tightening wheel 21. It should be noted that the embodiment of the present invention does not limit the fixed connection mode between the blade rod 31 and the tightening wheel 21. For example, the blade rod 31 and the tightening wheel 21 are welded.

[0043] The transmission sheet 32 ​​is sleeved on the blade rod 31; specifically, Figure 7-10 As shown, the transmission sheet 32 ​​is a sheet-like structure, and a circular through hole matching the blade 31a of the blade rod 31 is provided on the transmission sheet 32, and limit plates 32a are fixedly provided on the left and right sides of the inner surface of the circular through hole, respectively, and the transmission sheet 32 ​​is clamped on the blade of the blade rod 31 through the two limit plates 32a; Specifically, Fig.10 As shown, the front side of the limiting piece 32a on the left side of the circular through hole contacts the blade 31a of the blade rod 31, and the rear side of the limiting piece 32a on the right side of the circular through hole contacts the blade 31a of the blade rod 31. In this way, in the process of the rotating motor 12 driving the tightening wheel 21 to rotate, the blade rod 31 rotates in the same direction as the rotating motor 12. Since the limiting pieces 32a on the left and right sides of the circular through hole contact the blades 31a of the blade rod 31, when the blades 31a of the blade rod 31 rotate, the blades 31a in contact with the rear side of the limiting piece 32a push the limiting piece 32a to move forward, that is, push the transmission piece 32 to move on the blade rod 31.

[0044] In actual use, since the transmission sheet 32 ​​is fixedly connected to the fixed portion of the first push rod 33 , the transmission sheet 32 ​​will not rotate with the blade rod 31 while moving linearly.

[0045] like Fig.16 and 17 As shown, the first push rod 33 is a bidirectional piston hydraulic rod with a V-shaped structure; specifically, the movable end of the upper push rod 33a of the first push rod 33 is connected to the upper end of the transmission plate 32, the side of the hydraulic piston cylinder 33b of the first push rod 33 is fixedly connected to the simulated human body 4 through a fixed rod, and the movable end of the lower push rod 33c of the first push rod 33 is in contact with the outer side of the simulated uterus 6.

[0046] like Fig.15 As shown, the second push rod 34 is a telescopic rod, including a V-shaped fixed cylinder 34a and a sliding rod 34b sleeved with the V-shaped fixed cylinder 34a; specifically, one end of the V-shaped fixed cylinder 34a away from the sliding rod 34b is fixedly connected to the simulated human body 4, one end of the sliding rod 34b away from the V-shaped fixed cylinder 34a is in contact with the outer side of the simulated uterus 6, and the side of the sliding rod 34b is connected to the linkage rod 35.

[0047] Specifically, a linear movable cavity is provided in the V-shaped fixed cylinder 34a; The sliding rod 34b is a straight rod, and the sliding rod 34b moves linearly in the linear movable cavity of the V-shaped fixing cylinder 34a.

[0048] In practical applications, the ends of the first push rod 33 and the second push rod 34 are both provided with V-shaped boosting pieces 9 so that the thrust exerted on the simulated uterus 6 is more uniform.

[0049] like Fig.18 and 19 As shown, the third push rod 36 is similar to the first push rod 33, and the third push rod 36 is a bidirectional piston hydraulic rod with a V-shaped structure; specifically, the movable end of the upper push rod 36a of the third push rod 36 is connected to the side of the transmission plate 32, the hydraulic piston cylinder 36b of the third push rod 36 is fixedly connected to the simulated human body 4 through a fixed rod, and the movable end of the lower push rod 36c of the third push rod 36 is in contact with the outer side of the simulated uterus 6.

[0050] In practical applications, such as Figure 3 and 4 As shown, a third connecting rod 37 is provided on the outer surface of the hydraulic piston cylinder of the third push rod 36, and one end of the third connecting rod 37 away from the hydraulic piston cylinder of the third push rod 36 is connected to the linkage rod 35. Specifically, two mutually parallel limit blocks are provided at one end of the third connecting rod 37 away from the hydraulic piston cylinder of the third push rod 36, and the two limit blocks are respectively located on both sides of the linkage rod 35, and are used to limit the movement direction of the linkage rod 35.

[0051] like Figure 3 As shown, the linkage rod 35 includes a transmission gear 35a, a first rack 35b and a second rack 35c.

[0052] Specifically, the transmission gear 35a is fixedly disposed on the connecting rod 35d, and one end of the connecting rod 35d away from the transmission gear 35a is rotatably connected to the third connecting rod 37; The first rack 35b and the second rack 35c are respectively located on both sides of the transmission gear 35a and are respectively meshed with the transmission gear 35a. One end of the first rack 35b away from the transmission gear 35a is fixedly connected to the end of the push rod part of the first push rod 33 through the first connecting rod 38. One end of the second rack 35 c away from the transmission gear 35 a is fixedly connected to the end of the push rod portion of the second push rod 34 through a second connecting rod 39 .

[0053] In practical applications, the first connecting rod 38 and the second connecting rod 39 are both telescopic rods.

[0054] In this way, when the lower push rod 33c is extended, the lower push rod 33c drives the movable rod of the first connecting rod 38 to extend, and the force of the lower push rod 33c driving the movable rod of the first connecting rod 38 to extend can be decomposed into a lateral pulling force and a longitudinal pulling force; The lateral pulling force of the movable rod of the first connecting rod 38 drives the first connecting rod 38 to move toward the side close to the center of the simulated uterus 6 in the lateral direction, and the longitudinal pulling force of the movable rod of the first connecting rod 38 drives the movable rod part of the first connecting rod 38 to extend, so that the movable rod part of the first connecting rod 38 gradually approaches the simulated uterus 6 in the longitudinal direction; Since the fixed portion of the first connecting rod 38 is fixedly connected to the end of the first rack 35b, and the other end of the first rack 35b is limited by the limit block at the end of the third connecting rod 37, after the movable rod portion of the first connecting rod 38 is fully extended, the fixed portion of the first connecting rod 38 cannot move in the longitudinal direction along with the movable rod portion of the first connecting rod 38, so that the fixed portion of the first connecting rod 38 can only move in the transverse direction to the side close to the center of the simulated uterus 6; Therefore, the fixed part of the first connecting rod 38 drives the first rack 35b to move toward the side close to the center of the simulated uterus 6, and the first rack 35b drives the transmission gear 35a to rotate, and then the transmission gear 35a drives the second rack 35c to move in the direction opposite to the movement direction of the first rack 35b, so that the second rack 35c pulls the second connecting rod 39 to move toward the side close to the center of the simulated uterus 6. At this time, the sliding rod 34b of the second push rod 34 is pulled out and moves toward the side close to the simulated uterus 6, so that the second push rod 34 applies thrust to the simulated uterus 6.

[0055] The working principle of the driving assembly provided by the embodiment of the present invention is as follows: the rotating motor 12 rotates, and the rotating motor 12 drives the tightening wheel 21 and the fan blade rod 31 to rotate in the same direction at the same time. At this time, the tightening rope 22 is wound around the tightening wheel 21, so that the accommodating cavity formed by the tightening rope 22 is reduced, and then the simulated uterus 6 squeezes the simulated fetus 8 located in the simulated fetal membrane 7 toward the simulated vaginal opening of the simulated vagina 5 under the tightening action of the tightening rope 21. The rotating motor 12 reciprocates for many times, driving the tightening wheel 21 and the fan blade rod 31 to repeatedly rotate in the same direction for many times, so as to simulate the regular uterine contraction during delivery to repeatedly squeeze the simulated fetus 8 toward the simulated vaginal opening of the simulated vagina 5. After the simulated fetus 8 is squeezed for many times, the suture on the opening 71 on the simulated fetal membrane 7 is disconnected, and the opening 71 is completely opened by the simulated fetus, simulating the rupture of the membrane during delivery, and then the simulated fetus 8 is delivered from the simulated vagina 5, so as to realize the simulation of the delivery process; While simulating the regular uterine contractions during childbirth, the first push rod 33 and the second push rod 34 squeeze the simulated uterus 6 to simulate the force of the midwife squeezing the pregnant woman's uterus during uterine contractions, and the third push rod 36 squeezes the simulated uterus 6 to simulate the squeezing force of the body's organs on the simulated uterus 6.

[0056] The specific usage process is: Step 1: The rotary motor 12 rotates, driving the tightening wheel 21 and the fan blade rod 31 to rotate simultaneously; In this step, the tightening rope 22 is wound around the tightening wheel 21, so that the tightening rope 22 squeezes the simulated uterus 6 after being tightened, simulating uterine contraction; at the same time, under the action of the blade rotation of the blade rod 31, the blade 31a of the transmission piece 32 in contact with the rear side of the limiting piece 32a pushes the transmission piece 32 to move on the blade rod 31 toward the end away from the tightening wheel 21; Step 2: The transmission plate 32 drives the upper push rod 33a of the first push rod 33 to move into the piston cylinder 33b of the first push rod 32, so that the lower push rod 33c of the first push rod 33 extends out until the lower push rod 33c abuts against the bottom of the simulated uterus 6; at the same time, the transmission plate 32 drives the upper push rod 33a of the third push rod 36 to move into the piston cylinder 33b of the third push rod 36, so that the lower push rod 33c of the third push rod 36 extends out and abuts against the bottom of the simulated uterus 6; When the lower push rod 33c of the first push rod 33 is extended, the first rack 35b is driven to move to the side away from the blade rod 31 through the first connecting rod 38, and then the first rack 35b drives the transmission gear 35a to rotate, and then the transmission gear 35a drives the second rack 35c to move to the side close to the blade rod 31, and then the second rack 35c drives the sliding rod 34b in the second push rod 34 to extend through the second connecting rod 39 and abut against the bottom of the simulated uterus 6; In this step, the simulated fetus 8 located in the simulated fetal membrane 7 squeezes the suture at the opening 71; Step 3: The rotating motor 12 rotates in the opposite direction, driving the tightening wheel 21 and the blade rod 31 to rotate in the opposite direction at the same time, so that the transmission plate 32 returns to the initial position, and then the transmission plate 32 drives the first push rod 33 and the third push rod 36 to return to the initial state; Step 4: Repeat steps 1 to 3 above to simulate regular uterine contractions during delivery, and use the first push rod 33, the second push rod 34 and the third push rod 36 to simulate medical staff pushing the bottom of the uterus of the parturient to help the parturient give birth, until all the sutures at the opening 71 are broken, and the simulated fetus 8 enters the simulated vagina 5 from the simulated uterus 6, and finally the delivery is completed and leaves the simulated human body 4.

[0057] In addition to demonstrating the delivery operation, the simulation teaching aid for simulating the delivery operation provided by the embodiment of the present invention can also help medical staff learn postpartum care skills training, such as uterine massage, postpartum hemorrhage management, etc.

[0058] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A simulation teaching aid for simulating childbirth operations, comprising: The simulated human body (4), simulated vagina (5) and simulated uterus (6) are characterized by further comprising: A driving assembly (1) is arranged on the simulated human body (4) and is located between the simulated human body (4) and the simulated uterus (6); A uterine contraction simulation component (2) connected to the driving component (1); The simulated boosting component (3) is connected to the simulated uterine contraction component (2).

2. A simulation teaching aid for simulating childbirth operations according to claim 1, characterized in that: The drive assembly (1) comprises: A support rod (11), the bottom end of which is connected to the simulated human body (4); The rotary motor (12) is arranged on the top end of the support rod (11), and the output end of the rotary motor (12) is connected to the simulated uterine contraction component (2).

3. A simulation teaching aid for simulating childbirth operations according to claim 2, characterized in that: The simulated uterine contraction assembly (2) includes: The tightening wheel (21) is connected to the output end of the rotating motor (12). A contraction rope (22) has one end connected to the tightening wheel (21), and the other end is connected to a through ring (23) provided on the simulated human body (4) after being wound around the simulated uterus (6).

4. A simulation teaching aid for simulating childbirth operations according to claim 3, characterized in that: The simulation booster components (3) include: A fan blade rod (31) connected to an end of the tightening wheel (21) away from the rotating motor (12); A transmission sheet (32) sleeved on the fan blade rod (31); The first push rod (33) is connected to the upper end of the transmission sheet (32).

5. A simulation teaching aid for simulating childbirth operations according to claim 4, characterized in that: The first push rod (33) is a V-shaped structure.

6. A simulation teaching aid for simulating childbirth operations according to claim 4, characterized in that: The simulation booster component (3) also includes: A second push rod (34), one end of which is slidably connected to the simulated human body (4); A linkage rod (35), one end of which is connected to an end of the second push rod (34) away from the simulated human body (4), and the other end of which is connected to the first push rod (33); The third push rod (36) has one end connected to the transmission plate (32) and the other end in contact with the simulated uterus (6).

7. A simulation teaching aid for simulating childbirth operations according to claim 6, characterized in that: The linkage rod (35) comprises: A transmission gear (35a) connected to a third push rod (36) via a third connecting rod (37); A first rack (35b), one end of which is meshed and connected to the transmission gear (35a), and the other end of which is connected to the first push rod (33) via a first connecting rod (38); The second rack (35c) has one end meshingly connected with a side of the transmission gear (35a) away from the first rack (35b), and the other end connected to the second push rod (34) via a second connecting rod (39).

8. A simulation teaching aid for simulating childbirth operations according to claim 7, characterized in that: V-shaped boosting sheets (9) are provided at the ends of the first push rod (33) and the second push rod (34).

9. The simulation teaching aid for simulating childbirth operation according to claim 1, characterized in that: The first connecting rod (38) and the second connecting rod (39) have the same structure and are both telescopic rods.

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