An inflatable assembly for a bionic midwifery apparatus and a bionic midwifery apparatus

Abstract

The application discloses an inflatable assembly for a bionic midwifery instrument and the bionic midwifery instrument, and relates to the technical field of medical instruments.The inflatable assembly for the bionic midwifery instrument comprises a fixing box, and a gas pipe is arranged on one side of the fixing box.In the application, the driving unit can drive the gear transmission unit to rotate, thereby driving the bidirectional inflation unit to inflate the gas pipe, and the bidirectional inflation unit can continuously inflate.If manual inflation is needed, the manual rotating unit is rotated to be perpendicular to the fixing box, the connecting unit can be disconnected from the driving unit and connected with the manual rotating unit at the same time, the operator can conveniently rotate the manual rotating unit, and after inflation is completed, the manual rotating unit is rotated to be parallel to one side of the fixing box, so that the manual rotating unit is stored and no space is occupied.The connecting and adjusting assembly is arranged, the inflatable assembly is convenient to disassemble and assemble, has excellent sealing performance, can accurately control airflow to control the inflation degree of the inner inflatable air bag, and has double-mode adaptability of double air bags independently supplied with air.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an inflatable component for a bionic midwifery instrument and the bionic midwifery instrument itself. Background Technology

[0002] The bionic midwifery device utilizes the principle of bionics, using an airbag instead of the fetal head. The airbag is placed successively in the cervical canal and vagina, and gradually inflated to mechanically expand the soft birth canal. It can be used for both induction and labor stimulation. When inflating the airbag, an inflation component is required. Existing inflation components are equipped with manual and electric inflation modes. Manual inflation can avoid situations where electric inflation is not possible in some emergencies.

[0003] Traditional inflation components often employ a single-piston structure, resulting in intermittent inflation and an inability to guarantee a continuous and stable air pressure output. This leads to uneven airbag expansion, affecting the effectiveness of assisted delivery. Furthermore, the pistons for manual and electric inflation modes are separately designed, occupying significant space. The manual operation components lack a proper storage design when not in use, easily causing space obstruction or accidental contact, which is detrimental to the cleanliness of the medical environment and operational safety. Existing inflation pipelines mostly use simple valve switches for control, failing to achieve gradual airflow adjustment and precise control of airbag inflation volume and degree, resulting in poor adaptability. Additionally, they can only control the inflation of a single airbag, lacking the ability to independently supply air to dual airbags, thus limiting their applicability. Therefore, we disclose an inflation component for a biomimetic assisted delivery instrument and the biomimetic assisted delivery instrument itself. Summary of the Invention

[0004] This invention provides an inflation component for a biomimetic midwifery instrument and a biomimetic midwifery instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an inflation assembly for a biomimetic midwifery instrument, comprising a fixed box, an inflation pipe on one side of the fixed box, a bidirectional inflation unit and a gear transmission unit installed inside the fixed box, the bidirectional inflation unit being connected to the inflation pipe, the gear transmission unit being connected to the bidirectional inflation unit, a connecting unit installed inside the gear transmission unit, a drive unit installed on the inner wall of one side of the fixed box, the drive unit being fitted with the connecting unit, and a manual rotation unit rotatably mounted on the gear transmission unit, the manual rotation unit being fitted with the connecting unit.

[0006] As a preferred embodiment of the present invention, the bidirectional inflation unit includes piston sleeves fixedly installed on the inner walls of the top and bottom sides of the fixed box. Each piston sleeve contains a movable piston, and piston rods are fixedly installed on the sides of the two movable pistons that are close to each other. A common pressure frame is fixedly installed at the ends of the two piston rods that are close to each other. Limiting plates are slidably sleeved on each of the two piston rods. One end of each limiting plate is fixedly installed on the inner wall of one side of the fixed box. Each piston sleeve has a connected exhaust pipe fixedly installed on one side. The ends of the two exhaust pipes away from the piston sleeves extend outside the fixed box and are connected to the inflation pipe. A first one-way valve is installed on each of the two exhaust pipes. Each piston sleeve has a connected air inlet pipe fixedly installed on one side. The ends of the two air inlets away from the piston sleeves extend outside the fixed box and are equipped with a second one-way valve.

[0007] As a preferred embodiment of the present invention, the gear transmission unit includes mounting plates fixedly installed on the inner walls of both sides of the fixed box. A rotating hole is provided on one side of each of the two mounting plates, and a rotating shaft and a mounting shaft are rotatably installed in the two rotating holes respectively. A large gear is fixedly installed at one end of the mounting shaft, and an extrusion column is eccentrically fixedly installed on the side of the large gear. One end of the extrusion column passes through the pressure frame, and the other end of the mounting shaft is rotatably installed inside the fixed box.

[0008] As a preferred embodiment of the present invention, the gear transmission unit further includes a small gear fixedly sleeved on the rotating shaft, the small gear meshing with the large gear, a circular hole being provided on one side inner wall of the fixed box, one end of the rotating shaft passing through the circular hole, and the annular side of the rotating shaft being rotatably installed in the circular hole.

[0009] As a preferred embodiment of the present invention, the connecting unit includes a movable groove at one end of the rotating shaft, a rectangular groove at the other end of the rotating shaft, a common moving hole at the sides of the rectangular groove and the movable groove that are close to each other, the cross-sectional area of ​​the moving hole being smaller than the cross-sectional areas of the rectangular groove and the movable groove, a moving rod slidably installed in the moving hole, one end of the moving rod extending into the movable groove and fixedly installed with a movable column, one end of the movable column extending out of the movable groove and fixedly installed with a pressure-bearing round head, and a rectangular slot at the end of the pressure-bearing round head away from the movable column.

[0010] As a preferred embodiment of the present invention, the connecting unit further includes a rectangular column slidably installed in the rectangular groove. One end of the rectangular column near the movable column contacts the inner wall of the rectangular groove. The end of the moving rod away from the movable column is connected to one end of the rectangular column. The end of the rectangular column away from the movable column extends outside the rectangular groove and is fixedly mounted with a fixing plate. A spring is sleeved on the rectangular column. The two ends of the spring are respectively fixedly mounted on the sides of the rotating shaft and the fixing plate that are close to each other. The side of the fixing plate is provided with a plurality of evenly arranged positioning grooves.

[0011] As a preferred embodiment of the present invention, the drive unit includes a motor fixedly installed on the inner wall of one side of the fixed box. The output shaft of the motor is fixedly installed with a connecting shaft. A plurality of positioning rods are fixedly installed at one end of the connecting shaft near the rotating shaft. Positioning blocks are fixedly installed on the sides of the plurality of positioning rods that are close to each other. The plurality of positioning blocks extend into the corresponding plurality of positioning slots.

[0012] As a preferred embodiment of the present invention, the manual rotation unit includes an annular groove formed on the annular side of the rotating shaft, a rotating ring rotatably mounted in the annular groove, round shafts fixedly mounted on the top and bottom of the rotating ring, round sleeves rotatably sleeved on both round shafts, connecting rods fixedly mounted on the sides of both round sleeves, and rectangular rotating rods fixedly mounted on the ends of the two connecting rods away from the round sleeves. The rectangular rotating rods correspond to the position of the pressure-bearing round head, the rectangular rotating rods are adapted to the rectangular slots, and a handle is rotatably mounted on the side of the rectangular rotating rods. The manual rotation unit includes a threaded sleeve fixedly installed on the side of the rectangular rotating rod. A bolt is installed in the threaded sleeve. The side of the fixed box is evenly provided with multiple circular grooves centered on the rotating ring. One end of the bolt extends into one of the circular grooves.

[0013] As a preferred embodiment of the present invention, the connection adjustment assembly includes a first connector, an inflatable inner tube, a second connector, a threaded ring, an internal threaded groove, and a limiting rubber ring. The first connector is fixedly disposed on the outside of the inflatable tube, the inflatable inner tube is inserted into the inside of the inflatable tube, the second connector is sleeved on the outside of the inflatable inner tube and movably connected to one end of the first connector, the threaded ring is disposed on the end face of the first connector, the internal threaded groove is opened at one end of the second connector, wherein the internal threaded groove is adapted to the threaded ring, and a limiting rubber ring is provided at one end of the inflatable inner tube located inside the inflatable tube. The connection adjustment assembly further includes an annular groove, an embedded rubber layer, a top block, a compression block, and a limiting slot. The annular groove is located on the outer side of the first connector and near its end face. The embedded rubber layer is embedded inside the first connector, which consists of several groups evenly distributed around its circumference. The top block is located inside the embedded rubber layer, which is open. Adjacent embedded rubber layers are connected by fan-shaped rubber sheets. The compression blocks are symmetrically arranged inside the second connector. The limiting slot is located on the end face of the first connector and communicates with the annular groove.

[0014] A bionic midwifery device includes a bionic midwifery device body and the aforementioned inflation component. The bionic midwifery device body is provided with a handle with an air bladder, and the air tube of the handle is connected to the inflation tube.

[0015] Compared with the prior art, the present invention provides an inflation component for a biomimetic midwifery instrument and a biomimetic midwifery instrument, which has the following beneficial effects: In this invention, the drive unit can drive the gear transmission unit to rotate, thereby driving the bidirectional inflation unit to inflate the inflation tube. The bidirectional inflation unit can continuously inflate. If manual inflation is required, the manual rotation unit can be rotated to a position perpendicular to the fixed box. The connection unit can disconnect from the drive unit while connecting to the manual rotation unit, making it convenient for the operator to rotate the manual rotation unit. After inflation is complete, the manual rotation unit rotates to a side parallel to the fixed box for storage without taking up space. The connection unit can also connect to the drive unit and disconnect from the manual rotation unit, making it convenient to use.

[0016] In this invention, the extrusion column rotates and extrudes the inner wall of the pressure frame, causing the pressure frame to move up and down. The movement of the pressure frame drives the two piston rods to move up and down, and the movement of the two piston rods drives the two moving pistons to move up and down within the two piston sleeves respectively. When the two moving pistons move upward, the upper moving piston discharges gas into the inflation pipe through the upper exhaust pipe and the first one-way valve, while the lower moving piston draws in gas through the lower intake pipe and the second one-way valve. When the two moving pistons move downward, the lower moving piston discharges gas into the inflation pipe through the lower exhaust pipe and the first one-way valve, while the upper moving piston draws in gas through the upper intake pipe and the second one-way valve. This ensures that gas is always entering the inflation pipe for inflation during the rotation of the rotating shaft.

[0017] In this invention, during separation, the pressure-bearing round head drives the movable column, the moving rod, and the rectangular column to move, thereby causing the fixed plate to move and facilitating the separation of the positioning block from the positioning groove, thus separating the connecting shaft from the rotating shaft. The movement of the fixed plate causes the spring to deform. During connection, the spring force causes the fixed plate to move away from the connecting shaft. When the positioning groove corresponds to the positioning block, the positioning block will enter the positioning groove. When the positioning groove and the positioning block do not correspond, when the motor is restarted, during the slow rotation of the connecting shaft, when the positioning groove and the positioning block correspond, the spring force causes the positioning block to enter the positioning groove, thereby connecting the connecting shaft and the rotating shaft.

[0018] In this invention, the connection adjustment component enables convenient assembly and disassembly, excellent sealing performance, precise airflow control to regulate the expansion degree of the internal expansion airbag, dual-mode adaptability with independent air supply for the two airbags, and a stable structural connection with no interference between the air paths. Attached Figure Description

[0019] Figure 1 A three-dimensional schematic diagram of an inflatable component for a biomimetic midwifery instrument; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A first-view stereoscopic diagram of an inflatable component for a biomimetic midwifery instrument after the fixed box has been cut open. Figure 4 A second-view stereoscopic diagram of an inflatable component for a biomimetic midwifery instrument after the fixed box has been cut open. Figure 5 A first-view perspective perspective view showing the connection between the drive unit, the connecting unit, the rotating shaft, and the manual rotation unit; Figure 6 for Figure 5 Enlarged view of the structure at the central fixed plate; Figure 7 for Figure 5 Enlarged view of the structure at the moving rod; Figure 8 A second-view perspective perspective view showing the connection between the drive unit, the connecting unit, the rotating shaft, and the manual rotation unit; Figure 9 This is an enlarged schematic diagram of the air inflator structure and some of its components in this invention; Figure 10 This is a schematic diagram of the air tube structure in this invention. Figure 1 ; Figure 11 For the present invention Figure 10 Enlarged view of the structure of section B in the middle; Figure 12 This is a schematic diagram showing the connection between the outer and inner inflatable airbags in this invention.

[0020] In the diagram: 1. Fixed box; 2. Spring; 3. Inflation pipe; 4. First one-way valve; 5. Exhaust pipe; 6. Inlet pipe; 7. Second one-way valve; 8. Rectangular slot; 9. Pressure-bearing round head; 10. Rotating ring; 11. Connecting rod; 12. Bolt; 13. Threaded sleeve; 14. Rectangular rotating rod; 15. Round shaft; 16. Round sleeve; 17. Rotating shaft; 18. Round groove; 19. Piston sleeve; 20. Limiting plate; 21. Large gear; 22. Extrusion column; 23. Pressure frame; 24. Piston rod; 25. Moving piston; 26. Motor; 27. Small gear; 28. Mounting plate; 29. ​​Mounting shaft; 30. 31. Connecting shaft; 32. Fixed plate; 33. Positioning rod; 34. Positioning groove; 35. Positioning block; 36. Rectangular column; 37. Rectangular groove; 38. Moving hole; 39. Movable column; 40. Movable groove; 41. Moving rod; 42. Handle; 43. Connector 1; 44. Connector 2; 45. Inflatable inner tube; 46. Threaded ring; 47. Annular groove; 48. Embedded rubber layer; 49. Top block; 50. Extrusion block; 51. Internal threaded groove; 52. Limiting rubber ring; 53. Limiting slot; 54. Outer tube; 55. Dual-channel connector; 56. External inflation airbag; 57. Internal inflation airbag. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention necessarily exceeds the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but still fall within the protection scope of this application.

[0022] Figures 1-12 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-12 The present invention will be further described below.

[0023] This invention discloses an inflation assembly for a biomimetic midwifery instrument, comprising a fixed box 1, an inflation pipe 3 on one side of the fixed box 1, a bidirectional inflation unit and a gear transmission unit installed inside the fixed box 1, the bidirectional inflation unit being connected to the inflation pipe 3, the gear transmission unit being connected to the bidirectional inflation unit, a connecting unit installed inside the gear transmission unit, a drive unit installed on the inner wall of one side of the fixed box 1, the drive unit being installed in conjunction with the connecting unit, and a manual rotation unit being rotatably mounted on the gear transmission unit, the manual rotation unit being installed in conjunction with the connecting unit.

[0024] With the above structure: the drive unit can drive the gear transmission unit to rotate, thereby driving the bidirectional inflation unit to inflate the inflation tube 3. The bidirectional inflation unit can continuously inflate. If manual inflation is required, the manual rotation unit can be rotated to a position perpendicular to the fixed box 1. The connection unit can disconnect it from the drive unit and connect it to the manual rotation unit at the same time, making it convenient for the operator to rotate the manual rotation unit. After inflation is completed, the manual rotation unit rotates to a side parallel to the fixed box 1 for storage without taking up space. At the same time, the connection unit can connect it to the drive unit and disconnect it from the manual rotation unit at the same time, making it convenient to use.

[0025] like Figure 3 and Figure 4 As shown, the bidirectional inflation unit includes piston sleeves 19 fixedly installed on the inner walls of the top and bottom sides of the fixed box 1. Movable pistons 25 are slidably installed inside each of the two piston sleeves 19. Piston rods 24 are fixedly installed on the sides of the two movable pistons 25 that are close to each other. A common pressure frame 23 is fixedly installed at the ends of the two piston rods 24 that are close to each other. Limiting plates 20 are slidably sleeved on each of the two piston rods 24. One end of each limiting plate 20 is fixedly installed on the inner wall of one side of the fixed box 1. A connected exhaust pipe 5 is fixedly installed on one side of each of the two piston sleeves 19. The end of each exhaust pipe 5 away from the piston sleeve 19 extends outside the fixed box 1 and is connected to the inflation pipe 3. A first one-way valve 4 is installed on each of the two exhaust pipes 5. A connected air inlet pipe 6 is fixedly installed on one side of each of the two piston sleeves 19. The end of each air inlet pipe 6 away from the piston sleeve 19 extends outside the fixed box 1 and is equipped with a second one-way valve 7. The extrusion column 22 rotates and extrudes the inner wall of the pressure frame 23, causing the pressure frame 23 to move up and down. The movement of the pressure frame 23 drives the two piston rods 24 to move up and down. The movement of the two piston rods 24 drives the two moving pistons 25 to move up and down within the two piston sleeves 19 respectively. When the two moving pistons 25 move upward, the upper moving piston 25 discharges gas into the inflation pipe 3 through the upper exhaust pipe 5 and the first one-way valve 4, while the lower moving piston 25 draws in gas through the lower air inlet pipe 6 and the second one-way valve 7. When the two moving pistons 25 move downward, the lower moving piston 25 discharges gas into the inflation pipe 3 through the lower exhaust pipe 5 and the first one-way valve 4, while the upper moving piston 25 draws in gas through the upper air inlet pipe 6 and the second one-way valve 7. This ensures that gas always enters the inflation pipe 3 for inflation during the rotation of the rotating shaft 17.

[0026] like Figure 3 and Figure 4As shown, the gear transmission unit includes mounting plates 28 fixedly installed on the inner walls of both sides of the fixed housing 1. Each mounting plate 28 has a rotating hole on one side, in which a rotating shaft 17 and a mounting shaft 29 are rotatably installed respectively. A large gear 21 is fixedly installed at one end of the mounting shaft 29, and a pressing column 22 is eccentrically fixedly installed on the side of the large gear 21. One end of the pressing column 22 passes through the pressure frame 23, and the other end of the mounting shaft 29 is rotatably installed inside the fixed housing 1. The gear transmission unit also includes a small gear 27 fixedly sleeved on the rotating shaft 17, which meshes with the large gear 21. A circular hole is opened on one side of the inner wall of the fixed housing 1, through which one end of the rotating shaft 17 passes, and the annular side of the rotating shaft 17 is rotatably installed within the circular hole. When the rotating shaft 17 and the small gear 27 rotate, the small gear 27 rotates, driving the large gear 21 to rotate, which in turn drives the pressing column 22 to rotate, thus pressing the inner wall of the pressure frame 23.

[0027] like Figure 6 and Figure 7As shown, the connecting unit includes a movable groove 39 at one end of the rotating shaft 17, and a rectangular groove 36 at the other end of the rotating shaft 17. The rectangular groove 36 and the movable groove 39 have a common moving hole 37 on their adjacent sides. The cross-sectional area of ​​the moving hole 37 is smaller than that of the rectangular groove 36 and the movable groove 39. A moving rod 40 is slidably installed inside the moving hole 37. One end of the moving rod 40 extends into the movable groove 39 and is fixedly mounted with a movable column 38. One end of the movable column 38 extends out of the movable groove 39 and is fixedly mounted with a pressure-bearing round head 9. The end of the pressure-bearing round head 9 furthest from the movable column 38... A rectangular slot 8 is provided; the connecting unit also includes a rectangular column 35 that is slidably installed in the rectangular slot 36. The end of the rectangular column 35 near the movable column 38 is in contact with the inner wall of the rectangular slot 36. The end of the moving rod 40 away from the movable column 38 is connected to one end of the rectangular column 35. The end of the rectangular column 35 away from the movable column 38 extends to the outside of the rectangular slot 36 and is fixedly installed with a fixing plate 31. A spring 2 is sleeved on the rectangular column 35. The two ends of the spring 2 are respectively fixedly installed on the sides of the rotating shaft 17 and the fixing plate 31 that are close to each other. The side of the fixing plate 31 is provided with a plurality of evenly arranged positioning slots 33. During separation, the pressure-bearing round head 9 moves, causing the movable column 38, the moving rod 40, and the rectangular column 35 to move. The movement of the rectangular column 35 causes the fixed plate 31 to move, thereby separating the multiple positioning blocks 34 from the multiple positioning grooves 33. This causes the connecting shaft 30 to lose its connection with the rotating shaft 17. The movement of the fixed plate 31 causes the spring 2 to deform. During connection, the force of the spring 2 causes the fixed plate 31 to move away from the connecting shaft 30. When the positioning groove 33 corresponds to the positioning block 34, the positioning block 34 will enter the positioning groove 33. When the positioning groove 33 and the positioning block 34 do not correspond, when the motor 26 is started, during the slow rotation of the connecting shaft 30, when the positioning groove 33 and the positioning block 34 correspond, the force of the spring 2 causes the positioning block 34 to enter the positioning groove 33, thereby connecting the connecting shaft 30 and the rotating shaft 17.

[0028] like Figure 4 , Figure 5 and Figure 6 As shown, the drive unit includes a motor 26 fixedly mounted on the inner wall of one side of the fixed housing 1. A connecting shaft 30 is fixedly mounted on the output shaft of the motor 26. A plurality of positioning rods 32 are fixedly mounted on the end of the connecting shaft 30 near the rotating shaft 17. Positioning blocks 34 are fixedly mounted on the sides of the plurality of positioning rods 32 that are close to each other. The plurality of positioning blocks 34 extend into the corresponding plurality of positioning slots 33. By starting the motor 26, the output shaft of the motor 26 rotates, driving the connecting shaft 30 to rotate. The rotation of the connecting shaft 30 drives the plurality of positioning rods 32 and the plurality of positioning blocks 34 to rotate, thereby causing the fixed disk 31 to rotate.

[0029] like Figure 2 and Figure 8As shown, the manual rotation unit includes an annular groove on the annular side of the rotating shaft 17, in which a rotating ring 10 is rotatably installed. A round shaft 15 is fixedly installed at both the top and bottom of the rotating ring 10. A round sleeve 16 is rotatably fitted onto each of the two round shafts 15. A connecting rod 11 is fixedly installed on the side of each of the two round sleeves 16. A rectangular rotating rod 14 is fixedly installed at the end of each connecting rod 11 away from the round sleeve 16. The rectangular rotating rod 14 corresponds to the position of the pressure-bearing round head 9 and is adapted to the rectangular slot 8. A handle 41 is rotatably installed on the side of the rectangular rotating rod 14. The manual rotation unit also includes a threaded sleeve 13 fixedly installed on the side of the rectangular rotating rod 14. A bolt 12 is threaded into the threaded sleeve 13. Multiple round grooves 18 are evenly distributed on the side of the fixed box 1, centered on the rotating ring 10. One end of the bolt 12 extends into one of the round grooves 18. When manual inflation is required, the bolt 12 is rotated to move it out of the circular groove 18. Then, the rectangular rotating rod 14 is rotated around the rotating ring 10 to align with the position of the rectangular slot 8. Then, the rectangular rotating rod 14 is rotated around the two circular shafts 15. The rotation of the rectangular rotating rod 14 presses the pressure head 9, causing the pressure head 9 to move. The movement of the pressure head 9 drives the movable column 38, the moving rod 40, and the rectangular column 35 to move. The movement of the rectangular column 35 drives the fixed plate 31 to move, thereby separating the multiple positioning blocks 34 from the multiple positioning grooves 33. This causes the connecting shaft 30 to lose its connection with the rotating shaft 17. The movement of the fixed plate 31 causes the spring 2 to deform. When the handle 41 is rotated to be perpendicular to the inner wall of the fixed box 1, the rectangular rotating rod 14 aligns with the position of the rectangular slot 8. Under the action of the spring 2, the fixed plate 31 moves in the opposite direction, thereby causing the rectangular rotating rod 14 to be inserted into the rectangular slot 8.

[0030] The output end of the inflation tube 3 is provided with a connection adjustment assembly, which includes a first connector 42, an inner inflation tube 44, a second connector 43, a threaded ring 45, an internal threaded groove 50, and a limiting rubber ring 51. The first connector 42 is fixedly disposed on the outside of the inflation tube 3. The first connector 42 can be sleeved on the outside of the inflation tube 3 and fixed by a clamp. The purpose of this arrangement is to facilitate the overall disassembly of the connection adjustment assembly. The inner inflation tube 44 is inserted into the inside of the inflation tube 3. The second connector 43 is sleeved on the outside of the inner inflation tube 44 and is movably connected to one end of the first connector 42. The threaded ring 45 is disposed on the end face of the first connector 42. The internal threaded groove 50 is opened at one end of the second connector 43. The internal threaded groove 50 is adapted to the threaded ring 45. The end of the inner inflation tube 44 located inside the inflation tube 3 is provided with a limiting rubber ring 51. The connection adjustment assembly also includes an annular groove 46, an embedded rubber layer 47, a top block 48, a compression block 49, and a limiting slot 52. The annular groove 46 is located on the outer side of the connector 1 42 and near the end face. The embedded rubber layer 47 is embedded inside the connector 1 42. The embedded rubber layer 47 consists of several groups that are symmetrically and equidistantly distributed in a circular pattern (two groups can be selected in this embodiment). The top block 48 is fixedly connected to the inner wall surface of the embedded rubber layer 47. The embedded rubber layer 47 is open. Adjacent embedded rubber layers 47 are connected by fan-shaped rubber sheets. The compression block 49 is located inside the connector 2 43. The limiting slot 52 is located on the end face of the connector 1 42 and communicates with the annular groove 46. In an optional embodiment, an outer tube 53 is sleeved inside the inner side of the connector 2 43, and an inflatable inner tube 44 is sleeved inside the outer tube 53. The end faces of the outer tube 53 and the inflatable inner tube 44 are provided with a dual-channel connector 54. One end of the outer tube 53 is fixedly connected to the end face of the connector 2 43. One end of the inflatable inner tube 44 is provided with an inner expansion airbag 56, and one end of the dual-channel connector 54 is provided with an outer expansion airbag 55. The inner expansion airbag 56 and the outer expansion airbag 55 are independently provided.

[0031] like Figures 9 to 11As shown, connector 2 43 is fitted onto the end face of connector 1 42. During the fitting process, the compression block 49 on the inner side of connector 2 43 is aligned with the annular groove 46 and inserted. At this time, the compression block 49 is inserted along the annular groove 46. Finally, the compression block 49 is engaged with the top block 48. Simultaneously, the inflation inner tube 44 is pulled outward. At this time, the limiting rubber ring 51 at one end of the inflation inner tube 44 is attached to the end face of the embedded rubber layer 47 and to the fan-shaped rubber sheet. Then... Rotating connector 43 clockwise causes the internal threaded groove 50 to connect with the threaded ring 45. Connector 43 then screws in along the threaded ring 45. At this time, the inclined surface of the extrusion block 49 inside connector 43 will deflect and compress the top block 48. One end of the top block 48 is spherical. As the compression proceeds, the embedded rubber layer 47 and the inflatable inner tube 44 are tightly fitted together. It should be noted that the inflatable inner tube 44 has a double-layer structure. (The inner layer is connected to the inflation tube 3). The spherical end of the top block 48 and the embedded rubber layer 47 converge towards the center of the inner wall through the groove provided on the outside of the inflation inner tube 44, thereby deforming the inner layer of rubber on the inner wall of the inflation inner tube 44. At the same time, as the connector 2 43 is screwed in, the top block 48 converges towards the center, thereby squeezing the inner layer of the inflation inner tube 44. At this time, the inner diameter of the inflation inner tube 44 gradually decreases. When the connector 2 43 is screwed in to the lowest end, the inflation inner tube 44 is completely squeezed, thereby cutting off the airflow. It should be noted that the inflation inner tube 44 is a medical soft rubber tube with a small inner diameter. It has a certain ability to deform under the action of external force. Therefore, when the spherical end of the top block 48 is simultaneously squeezed inward, the rubber on the inner wall converges and adheres to each other, and almost no airflow passes through, that is, the airflow is cut off, thereby controlling the degree of inflation of the front-end inner inflation airbag 56. The outer tube 53 and the inflation tube 3 are always in communication. Specifically, they are connected by a right-angle air guide tube. A switch valve can be installed at the middle and high end of the right-angle air guide tube. One end of the outer tube 53 is sealed by a sealing ring and fixedly connected to the outside of the inflation inner tube 44. The connection can be made by thermoplastic welding. Gas is supplied to the outer tube 53 and inflated through the external air passage of the dual-channel connector 54 to inflate the outer inflation airbag 55. The inner inflation airbag 56 or the outer inflation airbag 55 can be selectively used to achieve the inflation of different airbags.

[0032] When using an airbag to simulate the fetal head, the airbag is placed successively in the cervical canal and vagina, and gradually inflated to mechanically expand the soft birth canal. Optionally, the inner expansion airbag 56 can be placed in the cervical canal for separate inflation, and then the outer expansion airbag 55 can be placed into the vagina for inflation. Alternatively, the inner expansion airbag 56 and the outer expansion airbag 55 can be placed simultaneously. This is to meet different positions and different simulation needs, thereby increasing the versatility of the equipment for use and switching.

[0033] A bionic midwifery device includes a bionic midwifery device body and the aforementioned inflation component. The bionic midwifery device body is existing technology, such as the bionic midwifery device body disclosed in prior art announcement number CN219070579U, which will not be described in detail here. The bionic midwifery device body is provided with a handle with an airbag. The air tube of the handle is connected to the inflation tube 3, and the airbag on the handle can be inflated through the inflation tube 3.

[0034] The working principle and usage process of this invention are as follows: During use, the inflation tube 3 is connected to the connecting adjustment assembly. When inflation is required, the motor 26 is started. The output shaft of the motor 26 rotates, driving the connecting shaft 30 to rotate. The rotation of the connecting shaft 30 drives multiple positioning rods 32 and multiple positioning blocks 34 to rotate, thereby causing the fixed disk 31 to rotate. The fixed disk 31 drives the rotating shaft 17 and the small gear 27 to rotate via the rectangular column 35. The rotation of the small gear 27 drives the large gear 21 to rotate. The rotation of the large gear 21 drives the extrusion column 22 to rotate. The extrusion column 22 rotates and extrudes the inner wall of the pressure frame 23, thereby causing the pressure frame 23 to move up and down. The movement of the pressure frame 23 drives the two piston rods 24 to move up and down. The movement of piston rod 24 drives two moving pistons 25 to move up and down within two piston sleeves 19 respectively. When the two moving pistons 25 move upward, the upper moving piston 25 discharges gas into the inflation pipe 3 through the upper exhaust pipe 5 and the first one-way valve 4, while the lower moving piston 25 draws in gas through the lower intake pipe 6 and the second one-way valve 7. When the two moving pistons 25 move downward, the lower moving piston 25 discharges gas into the inflation pipe 3 through the lower exhaust pipe 5 and the first one-way valve 4, while the upper moving piston 25 draws in gas through the upper intake pipe 6 and the second one-way valve 7. This ensures that gas always enters the inflation pipe 3 for inflation during the rotation of the rotating shaft 17. When manual inflation is required, the bolt 12 is rotated to move it out of the circular groove 18. Then, the rectangular rotating rod 14 is first rotated around the rotating ring 10 to align with the position of the rectangular slot 8. Then, the rectangular rotating rod 14 is rotated around the two circular shafts 15. The rotation of the rectangular rotating rod 14 compresses the pressure-bearing circular head 9, causing the pressure-bearing circular head 9 to move. The movement of the pressure-bearing circular head 9 drives the movable column 38, the moving rod 40, and the rectangular column 35 to move. The movement of the rectangular column 35 drives the fixed plate 31 to move, thereby causing the multiple positioning blocks 34 to move. Separated from multiple positioning slots 33, the connecting shaft 30 and the rotating shaft 17 lose their connection. The fixed plate 31 moves, causing the spring 2 to deform. When the handle 41 rotates to be perpendicular to the inner wall of the fixed box 1, the rectangular rotating rod 14 corresponds to the rectangular slot 8. Under the action of the spring 2, the fixed plate 31 moves in the opposite direction, so that the rectangular rotating rod 14 is inserted into the rectangular slot 8. When the rectangular rotating rod 14 is inserted into the rectangular slot 8, the positioning block 34 is still misaligned with the positioning slot 33. Then rotate the handle 41. The rotation of the handle 41 drives the rectangular rotating rod 14 to rotate. The rotation of the rectangular rotating rod 14 drives the rotating shaft 17 to rotate. The rotation of the rotating shaft 17 drives the small gear 27 to rotate, thereby realizing that the two moving pistons 25 move up and down in the two piston sleeves 19 respectively. When the rotating shaft 17 rotates, it will not cause the connecting shaft 30 to rotate, making it easy for the operator to rotate the handle 41. After use, press the pressure head 9 to move the rectangular rotating rod 14 out of the rectangular slot 8, then rotate the rectangular rotating rod 14 to make it parallel to the inner wall of the fixing box 1, thereby storing the rectangular rotating rod 14 and the handle 41. Then, tighten the bolt 12 to make it enter one of the circular slots 18, thus completing the fixation of the rectangular rotating rod 14. Since the rectangular rotating rod 14 is separated from the pressure head 9, the spring 2 is always in a state of tension deformation. Under the action of the spring 2, the fixing plate 31 has a force away from the connecting shaft 30. When the positioning slot 33 When the positioning block 34 corresponds to the positioning block 34, the positioning block 34 will enter the positioning groove 33. When the positioning groove 33 and the positioning block 34 do not correspond, when the motor 26 is started, during the slow rotation of the connecting shaft 30, when the positioning groove 33 and the positioning block 34 correspond, the positioning block 34 will enter the positioning groove 33 under the action of the spring 2, thereby connecting the connecting shaft 30 and the rotating shaft 17. When the motor 26 is started, it will drive the two moving pistons 25 to move up and down in the two piston sleeves 19 respectively, thereby performing automatic inflation.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An inflatable component for a biomimetic midwifery instrument, characterized in that: Includes a fixed box (1), an inflation pipe (3) is provided on one side of the fixed box (1), a bidirectional inflation unit and a gear transmission unit are installed inside the fixed box (1), the bidirectional inflation unit is connected to the inflation pipe (3), the gear transmission unit is connected to the bidirectional inflation unit, a connecting unit is installed inside the gear transmission unit, a drive unit is installed on the inner wall of one side of the fixed box (1), the drive unit is installed in cooperation with the connecting unit, a manual rotation unit is rotatably installed on the gear transmission unit, and the manual rotation unit is installed in cooperation with the connecting unit.

2. The inflatable component for a biomimetic midwifery instrument according to claim 1, characterized in that: The bidirectional inflation unit includes piston sleeves (19) fixedly installed on the inner walls of the top and bottom sides of the fixed box (1). Each piston sleeve (19) has a movable piston (25) slidably installed inside it. Piston rods (24) are fixedly installed on the sides of the two movable pistons (25) that are close to each other. A common pressure frame (23) is fixedly installed at one end of each piston rod (24) that is close to each other. Limiting plates (20) are slidably sleeved on each piston rod (24). One end of each limiting plate (20) is fixedly installed on one side of the fixed box (1). On the wall, exhaust pipes (5) are fixedly installed on one side of each of the two piston sleeves (19) and communicate with them. The two exhaust pipes (5) extend away from the piston sleeves (19) to the outside of the fixed box (1) and communicate with the air filling pipe (3). A first one-way valve (4) is installed on each of the two exhaust pipes (5). A connected air intake pipe (6) is fixedly installed on one side of each of the two piston sleeves (19). The two air intake pipes (6) extend away from the piston sleeves (19) to the outside of the fixed box (1) and are equipped with a second one-way valve (7).

3. The inflatable component for a biomimetic midwifery instrument according to claim 2, characterized in that: The gear transmission unit includes mounting plates (28) fixedly installed on the inner walls of both sides of the fixed box (1). Each of the two mounting plates (28) has a rotating hole on one side. A rotating shaft (17) and a mounting shaft (29) are rotatably installed in the two rotating holes respectively. A large gear (21) is fixedly installed at one end of the mounting shaft (29). An extrusion column (22) is eccentrically fixedly installed on the side of the large gear (21). One end of the extrusion column (22) passes through the pressure frame (23). The other end of the mounting shaft (29) is rotatably installed inside the fixed box (1).

4. The inflatable component for a biomimetic midwifery instrument according to claim 3, characterized in that: The gear transmission unit also includes a small gear (27) fixedly sleeved on the rotating shaft (17), the small gear (27) meshing with the large gear (21), a circular hole is provided on one side inner wall of the fixed box (1), one end of the rotating shaft (17) passes through the circular hole, and the annular side of the rotating shaft (17) is rotatably installed in the circular hole.

5. The inflatable component for a biomimetic midwifery instrument according to claim 3, characterized in that: The connecting unit includes a movable groove (39) at one end of the rotating shaft (17), and a rectangular groove (36) at the other end of the rotating shaft (17). The rectangular groove (36) and the movable groove (39) are provided with the same moving hole (37) on their sides that are close to each other. The cross-sectional area of ​​the moving hole (37) is smaller than the cross-sectional area of ​​the rectangular groove (36) and the movable groove (39). A moving rod (40) is slidably installed in the moving hole (37). One end of the moving rod (40) extends into the movable groove (39) and is fixedly installed with a movable column (38). One end of the movable column (38) extends out of the movable groove (39) and is fixedly installed with a pressure-bearing round head (9). A rectangular slot (8) is provided at the end of the pressure-bearing round head (9) away from the movable column (38).

6. The inflatable component for a biomimetic midwifery instrument according to claim 5, characterized in that: The connecting unit also includes a rectangular column (35) slidably installed in the rectangular groove (36). One end of the rectangular column (35) near the movable column (38) contacts the inner wall of the rectangular groove (36). One end of the moving rod (40) away from the movable column (38) is connected to one end of the rectangular column (35). One end of the rectangular column (35) away from the movable column (38) extends to the outside of the rectangular groove (36) and is fixedly installed with a fixing plate (31). A spring (2) is sleeved on the rectangular column (35). The two ends of the spring (2) are respectively fixedly installed on the sides of the rotating shaft (17) and the fixing plate (31) that are close to each other. The side of the fixing plate (31) is provided with a plurality of evenly arranged positioning grooves (33).

7. The inflatable component for a biomimetic midwifery instrument according to claim 6, characterized in that: The drive unit includes a motor (26) fixedly installed on the inner wall of one side of the fixed box (1). The output shaft of the motor (26) is fixedly installed with a connecting shaft (30). A plurality of positioning rods (32) are fixedly installed at one end of the connecting shaft (30) near the rotating shaft (17). Positioning blocks (34) are fixedly installed on the sides of the plurality of positioning rods (32) that are close to each other. The plurality of positioning blocks (34) extend into the corresponding plurality of positioning grooves (33).

8. The inflatable component for a biomimetic midwifery instrument according to claim 5, characterized in that: The manual rotation unit includes an annular groove on the annular side of the rotating shaft (17), a rotating ring (10) is rotatably installed in the annular groove, a round shaft (15) is fixedly installed at the top and bottom of the rotating ring (10), a round sleeve (16) is rotatably sleeved on each of the two round shafts (15), a connecting rod (11) is fixedly installed on the side of each of the two round sleeves (16), a rectangular rotating rod (14) is fixedly installed at the end of each of the two connecting rods (11) away from the round sleeve (16), the rectangular rotating rod (14) corresponds to the position of the pressure round head (9), the rectangular rotating rod (14) is adapted to the rectangular slot (8), and a handle (41) is rotatably installed on the side of the rectangular rotating rod (14). The manual rotation unit also includes a threaded sleeve (13) fixedly installed on the side of the rectangular rotating rod (14). A bolt (12) is threaded inside the threaded sleeve (13). Multiple circular grooves (18) are evenly opened on the side of the fixed box (1) with the rotating ring (10) as the center. One end of the bolt (12) extends into one of the circular grooves (18).

9. The inflatable component for a biomimetic midwifery instrument according to claim 1, characterized in that: The output end of the inflation tube (3) is provided with a connection adjustment assembly, which includes a connector one (42), an inflation inner tube (44), a connector two (43), a threaded ring (45), an internal threaded groove (50), and a limiting rubber ring (51). The connector one (42) is fixedly disposed on the outside of the inflation tube (3), the inflation inner tube (44) is inserted into the inside of the inflation tube (3), the connector two (43) is sleeved on the outside of the inflation inner tube (44) and movably connected to one end of the connector one (42), the threaded ring (45) is disposed on the end face of the connector one (42), the internal threaded groove (50) is opened at one end of the connector two (43), wherein the internal threaded groove (50) is adapted to the threaded ring (45), and the end of the inflation inner tube (44) located inside the inflation tube (3) is provided with a limiting rubber ring (51). The connection adjustment assembly also includes an annular groove (46), an embedded rubber layer (47), a top block (48), a compression block (49), and a limiting slot (52). The annular groove (46) is located on the outside of the connector one (42) and close to the end face. The embedded rubber layer (47) is embedded inside the connector one (42). The connector one (42) consists of several groups of equidistantly distributed circumferentially. The top block (48) is located inside the embedded rubber layer (47). The embedded rubber layer (47) is open. Adjacent embedded rubber layers (47) are connected by fan-shaped rubber sheets. The compression block (49) is symmetrically arranged inside the connector two (43). The limiting slot (52) is located on the end face of the connector one (42) and communicates with the annular groove (46).

10. A biomimetic midwifery instrument, characterized in that: It includes the main body of the bionic midwifery instrument and the inflation component as described in any one of claims 1-9, wherein the inflation tube (3) of the inflation component can be connected to the air bag.

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