Gynecological delivery midwifery air bag obstetric apparatus

Abstract

The invention discloses an airbag midwifery apparatus for maternity midwifery, and relates to the technical field of medical instruments, the airbag midwifery apparatus comprises a distraction part, a movable part and a control part, in the midwifery process of a primary lying-in woman, an inner frame and an arc-shaped air pipe are folded, the inner frame is used as a supporting part and goes deep into a soft birth canal, and a shifting plate is shifted, so that a gear drives a rack to move in an annular frame in the respective length direction; the racks unfold the four inner frames through the folding rods, the arc-shaped air bags on the inner frames are inflated through the inflation device, so that the arc-shaped air bags with the same height form an annular structure, all the arc-shaped air bags form a cylindrical structure, physical opening is conducted on the soft birth canal, clamping balls of the shifting plates are connected with clamping grooves in a clamped mode, and it is guaranteed that the opening position is stable; a chip in the prior art is used for controlling a motor to work discontinuously, the motor is matched with a lower plate through a screw rod, so that a fixing column moves upwards relative to a fixing cylinder while rotating, in the process, the motor stops under the cooperation of a ratchet wheel and ratchets and does not rotate reversely, and the fixing column enables a stepped shaft to rotate through the cooperation of a limiting groove and a limiting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an air bag obstetric aid for gynecological and gynecological midwives. Background Art

[0002] Labor refers to the process from the beginning of regular uterine contractions to the complete expulsion of the fetus and its appendages from the mother's body. The whole process is called the total labor process. It is clinically divided into three stages: the first stage, the second stage, and the third stage. 1. The first stage of labor: also known as the cervical dilation period or the opening period, refers to the period from the beginning of regular uterine contractions to the full opening of the cervix. It takes about 11-12 hours for primiparas and about 6-8 hours for multiparas. 2. The second stage of labor: also known as the fetal delivery period, refers to the period from the full opening of the cervix to the delivery of the fetus. It takes about 1-2 hours for primiparas, only a few minutes for multiparas, and up to 1 hour for a few. 3. The third stage of labor: also known as the placental delivery period, is from the delivery of the fetus to the delivery of the placenta. It takes about 5-15 minutes, usually not more than 30 minutes. Midwifery is a series of measures taken before and during delivery to ensure the smooth delivery of the fetus through the mother's birth canal. It mainly includes caring for the mother, observing the labor process, guiding the correct cooperation with the progress of labor, and delivering the baby. If the labor progresses slowly after it starts, and examination reveals abnormalities in the birth canal or fetus, such as a tight perineum of the mother, heart disease that makes it difficult to exert force, abnormal fetal position, etc., surgery to prepare the birth canal, such as perineal incision, surgery to resolve delivery, such as vacuum extraction, forceps, and gluteal traction, and surgery to change the fetal pole, such as internal version, etc. The birth canal is the channel for the fetus to be delivered, which is divided into two parts: bony birth canal and soft birth canal.

[0003] To summarize, the following technical problems exist in the current midwifery process: Clinical medical staff have found that the soft birth canal of multiparas is looser than that of primiparas because they have given birth before, and a larger stretching space is created during the dilation of the cervix, allowing the fetal head to descend smoothly and the labor progresses smoothly; whereas, because primiparas have never given birth, their soft birth canal is relatively tight, and after the cervix dilates 5 cm, the fetal head will have difficulty descending; currently, during this process, medical staff evaluate every two hours. If the fetal head does not descend for more than four hours, a cesarean section or other operations are required to accelerate the labor and allow a normal delivery, but this will cause harm to the mother; and current medical staff try to physically stretch the soft birth canal to increase the degree of stretching of the soft birth canal, and cooperate with the dilation of the cervix to allow the cervix to dilate smoothly and the fetal head to descend smoothly, but the long-term compression caused by the long-term physical stretching leads to poor blood flow in the soft birth canal and vaginal fistula. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention provides an air bag obstetric aid for gynecological midwives.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] An air bag obstetric device for gynecological midwives comprises an expansion part, a movable part and a control part, the expansion part comprises an inner frame and an arc air tube, a plurality of arc air tubes are fixedly connected to the inner frame, the inner frame is provided with four groups, and the four groups of arc air tubes on the inner frame form a circular ring structure, a control part is provided on the lower side of the inner frame, and the control part is provided with an adjustment component for adjusting the distance between the inner frames on the opposite sides; a movable part is slidably connected inside the inner frame, the movable part comprises an air suction component, and the air suction component cooperates with the arc air tube.

[0007] Furthermore, an air cavity is opened in the middle of the arc air tube, the inner frame is an inverted cylindrical structure, the middle of the inner frame is connected to the air cavity of the arc air tube, and the inner frame is radially slidably connected to a limit block at the upper edge of the air cavity for limiting from top to bottom;

[0008] The air suction component of the movable part includes a slide, the control part includes a moving component for controlling sliding movement, a transverse groove is provided in the middle of the slide, the transverse groove corresponds to the air cavity of the arc air tube, a middle plate component for changing the ventilation state is slidably connected in the transverse groove, and an air hole is provided on the slide to match the ventilation state of the middle plate component; the middle plate component and the limit block are matched in limiting and blocking manner;

[0009] After the transverse groove of the slide corresponds to the air cavity, the middle plate assembly is blocked by the limit block, and the slide continues to move downward, stretching the space between the middle plate assembly and the lower end of the slide, extracting the gas in the air cavity of the arc air tube, causing the arc air tube to shrink.

[0010] Furthermore, the air holes on the slide include an upper hole and a lower hole, the upper side of the slide is provided with an upper hole, and the lower side of the slide is provided with a lower hole;

[0011] The middle plate assembly comprises a middle frame and side frames, the middle frame is slidably connected in the transverse groove up and down, side frames are arranged on both sides of the middle frame, a connecting frame is fixedly connected to the side of the side frame close to the middle frame, the connecting frame is slidably connected in the middle frame, and a middle spring is fixedly connected between the connecting frames on both sides; a shield is fixedly connected to the upper part of the side frame close to one end of the middle frame on one side, and a shield is fixedly connected to the lower part of the side frame close to one end of the middle frame on the other side, the shield is slidably connected to the middle frame, and the length of the shield is greater than the length of the connecting frame; the middle frame is frame-shaped, so that the shield covers the gap where the connecting frame cannot fit tightly with the sliding frame;

[0012] The slide frame is fixedly connected with an inclined block on the upper side of the transverse groove, an inclined groove is opened on the upper side of the side frame, the inclined block cooperates with the inclined groove, a middle hole is opened on the lower side of the side frame, and the middle hole is connected with the inclined groove; a side spring is fixedly connected between the limit block and the inner frame, an air sealing cushion is fixedly connected to the limit block, and the air sealing cushion cooperates with the middle hole accordingly;

[0013] A lower column is fixedly connected to the lower side of the middle frame, the lower column extends downwardly out of the lower hole, a lower spring is fixedly connected to the lower side of the lower column, a bottom plate is fixedly connected to the lower side of the lower spring, an outer cylinder is fixedly connected to the upper side of the bottom plate, the lower column is slidably connected in the outer cylinder, the diameter of the lower hole is larger than the diameter of the outer cylinder, and the diameter of the bottom plate is larger than the diameter of the lower hole;

[0014] In the initial position, the gas on the upper side of the slide is connected to the gas on the lower side of the slide through the upper hole, the inclined groove, the middle hole and the lower hole. When the slide moves downward and the middle plate assembly and the limit block do not cooperate, the internal gas state does not change.

[0015] Furthermore, a side slope is provided on the lower side of the limit block, a lower slope is provided on the lower end of the inner frame, and an upper slope is provided on the upper side of the transverse groove of the inner frame. The upper and lower slopes cooperate with the upper side surface of the limit block, and the side slope cooperates with the upper side surfaces of the inner frame and the side frame.

[0016] Further, the adjustment assembly includes an elastic rope and a pull wire, the upper end of the inner frame is fixedly connected to the elastic rope, and the lower side of the inner frame is fixedly connected to the pull wire;

[0017] The lower end of the inner frame is fixedly connected to a lower cylinder, the pull wire passes through the lower cylinder, a fixed cylinder is provided at the lower side of the expansion part, a lower plate is fixedly connected to the lower side of the fixed cylinder, an upper plate is fixedly connected to the upper side of the fixed cylinder, a fixed plate is provided at the lower side of the fixed cylinder, a motor is fixedly connected to the fixed plate, a screw is provided on the motor, and the screw is threadedly connected to the lower plate;

[0018] The screw rod is fixedly connected with a fixing column, the upper end of the fixing column is fixedly connected with a ratchet, a ratchet is arranged beside the ratchet, a side spring is fixedly connected between the ratchet and the fixing cylinder, one side of the ratchet is rotatably connected with a rotating rod, and the rotating rod extends downward and is fixedly connected to the lower plate;

[0019] A limiting groove is provided between the ratchet and the fixed column, and a limiting plate is slidably connected in the limiting groove; the upper end of the limiting plate is fixedly connected to a cone frame, and the upper end of the cone frame is fixedly connected to a stepped shaft, and the stepped shaft is rotatably connected to the upper plate; the stepped shaft and the cone frame clamp the upper plate in the middle, and a top plate is fixedly connected to the stepped shaft, and the lower end of the pull wire is fixedly connected to the upper part of the stepped shaft; the length of the ratchet is from the lower edge of the ratchet to the lower edge of the cone frame, and a push ring is fixedly connected to the lower side of the fixed column, and the push ring cooperates with the ratchet; the lower end of the ratchet is fixedly connected to a pressure plate, and the pressure plate cooperates with the ratchet; the lower side of the fixed cylinder is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the fixed plate.

[0020] Furthermore, the rotating rod is fixedly connected with a fixing ring at the lower side of the ratchet, and the fixing ring cooperates with the ratchet; the ratchet will not move downward in the initial position.

[0021] Furthermore, the moving assembly includes a folding rod, a rack, a gear and a shift plate. The lower end of the lower tube is fixedly connected to the folding rod, the lower end of the folding rod is fixedly connected to the rack, the fixed plate is fixedly connected to a ring frame, the upper side of the fixed tube is rotatably connected to a gear, the gear is meshed with the rack, the lower side of the gear is fixedly connected to a ring, the ring is rotatably connected to the fixed tube, the ring is opened with a transverse groove at the ring position, the ring is fixedly connected to a shift plate, and the shift plate is slidably connected in the transverse groove.

[0022] Furthermore, a plurality of locking grooves are provided in the transverse groove, and a locking ball is fixedly connected to the dial plate, and the locking ball is engaged with the locking groove.

[0023] Furthermore, a sliding column is slidably connected in the lower tube, and the pull wire passes through the sliding column and is slidably connected to the sliding column; the pull wire is tightly abutted against the sliding column, a bottom spring is fixedly connected to the lower side of the sliding column, and the bottom plate cooperates with the sliding column.

[0024] Furthermore, the inner frame is fixedly connected with an inflation branch pipe near the lower tube, the inflation branch pipe is fixedly connected with an inflation pipe, and the inflation pipe is fixedly connected with an inflation device.

[0025] Furthermore, the inflation device is provided with an inflation ball.

[0026] Beneficial effects of the present invention:

[0027] An airbag delivery device for gynecologists and midwives. During the delivery process of a primipara, the inner frame and the arc trachea are folded, and the inner frame is used as a supporting component to penetrate into the soft birth canal. The paddle is turned so that the gear drives the rack to move in the ring frame in the respective length directions. The rack unfolds the four inner frames through the folding rod. The arc airbags on the inner frame are inflated through the inflation device so that the arc airbags of the same height form a ring structure. All the arc airbags form a cylindrical structure, and the soft birth canal is physically expanded. The card ball of the paddle is engaged with the card slot to ensure the expansion position. The motor is stable, and the existing chip controls the intermittent operation of the motor. The motor cooperates with the lower plate through the screw rod, so that the fixed column rotates and moves upward relative to the fixed cylinder. In this process, the motor stops under the cooperation of the ratchet and the ratchet teeth, and will not reverse. The fixed column cooperates with the limit groove and the limit plate to rotate the stepped shaft, and the pull wire is wound around the upper part of the stepped shaft. The pull wire pulls the slide frame downward and stretches the elastic rope at the same time. In this process, due to the action of the upper hole, the inclined groove, the middle hole and the lower hole, the gas in the arc airbag will not change;

[0028] The lower inclined surface of the slide pushes the limit block, and the side frame in the slide cooperates with the limit block to seal the hole in the column. At the same time, the slide continues to move downward, the middle plate assembly cannot move downward, and pulls the bottom plate upward to block the lower hole of the column, and stretches the lower spring, so that the movement of the slide extracts the air of the corresponding arc airbag, the arc airbag shrinks, and the arc airbag wraps the inner frame, so that the deflated arc airbag relaxes the pressure on the soft birth canal. When the middle plate assembly moves relatively to the upper side of the slide, the inclined block cooperates with the inclined groove to move the side frames on both sides to the middle and compress The middle spring and the side frame are separated from the limit block and reset longitudinally by the lower spring. The middle spring pushes the side frame to reset horizontally, and the arc airbags are reciprocated one by one. During this process, other arc airbags are slightly deformed to achieve the effect of discontinuous compression. While keeping the soft birth canal open and increasing the degree of stretching, blood circulation is maintained to avoid the problem of vaginal fistula caused by long-term continuous compression. When the slide moves downward and approaches the lower tube position, the bottom plate at the lower side of the lower hole of the slide pushes down against the column slide, and the slide compresses the spring. The bottom plate is pushed upward to block the lower hole of the column. The downward movement of the slide will extract the gas in the air cavity of all the arc tracheae on an inner frame, relax the soft birth canal as a whole, but always keep it in a stretched state, and ensure blood circulation through continuous relaxation. When the pull line is entangled, the push ring pushes the ratchet upward, and the ratchet is pushed away from the ratchet by the cone frame. The pull line is pulled by the elastic rope to reset the slide and pull the stepped shaft to reverse. The slide and the side inclined surface of the limit block are matched to reset upward. The reversal of the stepped shaft is matched through the limit groove and the limit plate, and the ratchet is not limited by the ratchet, so that when the motor stops, the screw is reversed and reset, and the ratchet is placed on the pressure plate downward to reset the ratchet downward, and enter the next cycle. While continuously expanding the soft birth canal, the compression position is continuously and automatically relaxed. When the fetal head descends, the soft birth canal of the primipara can expand a larger space like that of a multipara, so that the fetal head can continue to descend smoothly after descending 5 cm. The second stage of labor progresses smoothly, reducing cesarean sections and avoiding secondary injuries of vaginal fistula caused by operation.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the overall structure of the air bag obstetric device for obstetricians and midwives according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the structural connection of the expansion part, the movable part and the control part according to an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the inner frame, arc air tube, inflatable ball and rack according to an embodiment of the present invention;

[0034] Figure 4 It is a schematic cross-sectional structure diagram of the inner frame, arc air pipe and lower tube according to an embodiment of the present invention;

[0035] Figure 5 It is a partial structural schematic diagram of the cross section of the inner frame, arc air pipe, lower tube, and middle plate assembly according to an embodiment of the present invention;

[0036] Figure 6 It is a structural schematic diagram of a cross section of a middle plate assembly according to an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the structural connection between the movable part and the control part according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structural connection of the inner frame, arc air tube and inflatable ball according to an embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the structural connection of the motor, the fixed cylinder stepped shaft and the pull wire according to an embodiment of the present invention;

[0040] Fig.10 A schematic diagram of the structural connection between the gear and the rack according to an embodiment of the present invention;

[0041] Fig.11 It is a schematic diagram of the structural connection between the cross section of the fixed cylinder and the motor according to an embodiment of the present invention;

[0042] Fig.12 It is a schematic diagram of the structural connection of the cross section of the fixed cylinder according to the embodiment of the present invention;

[0043] Fig.13 This is a schematic diagram of the structural connection of the motor, the fixing column, the limiting plate, the cone ring and the stepped shaft according to an embodiment of the present invention;

[0044] Fig.14 This is a schematic diagram of the structural connection between the fixing column and the ratchet according to an embodiment of the present invention;

[0045] Fig.15 This is a schematic diagram of the structural connection of the ring frame according to an embodiment of the present invention;

[0046] Fig.16 It is a schematic diagram of the structural connection between the paddle and the blocking ball according to an embodiment of the present invention.

[0047] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0048] 1-inner frame, 101-lower cylinder, 102-sliding column, 103-bottom spring, 110-folding rod, 111-rack, 120-pull wire, 130-sliding frame, 131-elastic rope, 132-cross groove, 133-upper hole, 134-upper inclined surface, 135-oblique block, 136-middle frame, 137-side frame, 138-oblique groove, 139-middle hole, 140-connecting frame, 141-shutter, 142-middle spring, 150-lower column, 151-lower spring, 152-outer cylinder, 153-bottom plate, 154-lower hole, 155-lower inclined surface, 160-limiting block, 161-side spring, 162-sealing air cushion, 163-side inclined surface, 2-arc air pipe , 201-inflatable branch pipe, 202-inflatable tube, 203-inflatable ball, 210-air cavity, 3-ring frame, 301-card slot, 310-fixed plate, 311-motor, 312-screw, 313-fixed column, 314-push ring, 315-ratchet, 316-limiting groove, 320-fixed cylinder, 321-lower plate, 322-upper plate, 323-ratchet, 324-side spring, 325-rotating rod, 326-pressure plate, 327-fixed ring, 328-limiting rod, 330-limiting plate, 331-cone frame, 332-step shaft, 333-top plate, 340-ring, 341-gear, 342-push plate, 343-card ball. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Example 1

[0051] like Figure 1-16 Shown

[0052] The present invention discloses an air bag obstetric aid for gynecological midwives, comprising an expansion part, a movable part and a control part. The expansion part comprises an inner frame (1) and an arc air tube (2). A plurality of arc air tubes (2) are fixedly connected to the inner frame (1). The inner frame (1) is provided with four groups. The four groups of arc air tubes (2) on the inner frame (1) form a circular ring structure. A control part is provided on the lower side of the inner frame (1). The control part is provided with an adjustment component for adjusting the distance between the inner frames (1) on opposite sides. A movable part is slidably connected inside the inner frame (1). The movable part comprises an air suction component. The air suction component cooperates with the arc air tube (2).

[0053] An air cavity (210) is provided in the middle of the arc air tube (2); the inner frame (1) is in an inverted cylindrical structure; the middle of the inner frame (1) is connected to the air cavity (210) of the arc air tube (2); the inner frame (1) is radially slidably connected to a limit block (160) for limiting the position from top to bottom at the upper edge of the air cavity (210); the air suction component of the movable part comprises a slide frame (130); the control part comprises a moving component for controlling the sliding movement; a transverse groove (132) is provided in the middle of the slide frame (130); the transverse groove (132) corresponds to the air cavity (210) of the arc air tube (2); a middle plate component for changing the ventilation state is slidably connected in the transverse groove (132); an air hole for matching the ventilation state of the middle plate component is provided on the slide frame (130); the middle plate component and the limit block (160) are matched for limiting and blocking;

[0054] After the transverse groove (132) of the slide (130) corresponds to the air cavity (210), the middle plate assembly is blocked by the limit block (160), and the slide (130) continues to move downward, stretching the space between the middle plate assembly and the lower end of the slide (130), extracting the gas in the air cavity (210) of the arc air tube (2), so that the arc air tube (2) shrinks;

[0055] Example 2

[0056] like Figure 5-6 Shown

[0057] The air holes on the slide (130) include an upper hole (133) and a lower hole (154); the upper side of the slide (130) is provided with an upper hole (133), and the lower side of the slide (130) is provided with a lower hole (154); the middle plate assembly includes a middle frame (136) and a side frame (137); the middle frame (136) is slidably connected in the transverse groove (132) up and down; side frames (137) are provided on both sides of the middle frame (136); a connecting frame (140) is fixedly connected to the side of the side frame (137) close to the middle frame (136); the connecting frame (140) is slidably connected to the middle frame (136), a middle spring (142) is fixedly connected between the connecting frames (140) on both sides; a shielding plate (141) is fixedly connected to the upper part of one side frame (137) close to one end of the middle frame (136), and a shielding plate (141) is fixedly connected to the lower part of the other side frame (137) close to one end of the middle frame (136); the shielding plate (141) is slidably connected to the middle frame (136), and the length of the shielding plate (141) is greater than the length of the connecting frame (140); the middle frame (136) is frame-shaped, so that the shielding plate (141) covers the connecting frame (140) and cannot be separated from the sliding frame (1 30) close to the gap; the slide (130) is fixedly connected with an inclined block (135) on the upper side of the transverse groove (132), and an inclined groove (138) is opened on the upper side of the side frame (137), and the inclined block (135) cooperates with the inclined groove (138), and a middle hole (139) is opened on the lower side of the side frame (137), and the middle hole (139) is connected with the inclined groove (138); a side spring (161) is fixedly connected between the limit block (160) and the inner frame (1), and an air sealing pad (162) is fixedly connected to the limit block (160), and the air sealing pad (162) is connected to the middle hole (1 39) correspondingly cooperate; a lower column (150) is fixedly connected to the lower side of the middle frame (136), the lower column (150) extends downwardly out of the lower hole (154), a lower spring (151) is fixedly connected to the lower side of the lower column (150), a bottom plate (153) is fixedly connected to the lower side of the lower spring (151), an outer tube (152) is fixedly connected to the upper side of the bottom plate (153), the lower column (150) is slidably connected in the outer tube (152), the diameter of the lower hole (154) is larger than the diameter of the outer tube (152), and the diameter of the bottom plate (153) is larger than the diameter of the lower hole (154);

[0058] In the initial position, the gas on the upper side of the slide (130) is connected to the gas on the lower side of the slide (130) through the upper hole (133), the inclined groove (138), the middle hole (139), and the lower hole (154), and the internal gas state does not change when the slide (130) moves downward and the middle plate assembly and the limit block (160) do not cooperate;

[0059] The lower side of the limit block (160) is provided with a side bevel (163), the lower end of the inner frame (1) is provided with a lower bevel (155), the inner frame (1) is provided with an upper bevel (134) on the upper side of the transverse groove (132), the upper bevel (134) and the lower bevel (155) cooperate with the upper side surface of the limit block (160), and the side bevel (163) cooperates with the upper side surfaces of the inner frame (1) and the side frame (137);

[0060] Example 3

[0061] like Figure 7-16 Shown

[0062] The adjustment assembly comprises an elastic rope (131) and a pull wire (120); the upper end of the inner frame (1) is fixedly connected to the elastic rope (131); the lower side of the inner frame (1) is fixedly connected to the pull wire (120); the lower end of the inner frame (1) is fixedly connected to a lower cylinder (101); the pull wire (120) passes through the lower cylinder (101); a fixed cylinder (320) is provided at the lower side of the expansion portion; a lower plate (321) is fixedly connected to the lower side of the fixed cylinder (320); an upper plate (322) is fixedly connected to the upper side of the fixed cylinder (320); a fixed cylinder (320) is provided at the lower side The fixing plate (310) is fixedly connected to a motor (311), the motor (311) is provided with a screw (312), and the screw (312) is threadedly connected to the lower plate (321); the screw (312) is fixedly connected to a fixing column (313), the upper end of the fixing column (313) is fixedly connected to a ratchet (315), a ratchet (323) is provided next to the ratchet (315), a side spring (324) is fixedly connected between the ratchet (323) and the fixing cylinder (320), and a rotating rod (325) is rotatably connected to one side of the ratchet (323), and the rotating rod (325) extends downward and is fixedly connected to the lower plate (321); a limiting groove (316) is provided between the ratchet (315) and the fixed column (313); a limiting plate (330) is slidably connected in the limiting groove (316); a cone frame (331) is fixedly connected to the upper end of the limiting plate (330); a stepped shaft (332) is fixedly connected to the upper end of the cone frame (331); the stepped shaft (332) is rotatably connected to the upper plate (322); the stepped shaft (332) and the cone frame (331) clamp the upper plate (322) in the middle; a top plate is fixedly connected to the stepped shaft (332) (333), the lower end of the pull wire (120) is fixedly connected to the upper part of the stepped shaft (332); the length of the ratchet (323) is from the lower edge of the ratchet (315) to the lower edge of the cone frame (331), and the lower side of the fixed column (313) is fixedly connected with a push ring (314), and the push ring (314) cooperates with the ratchet (323); the lower end of the ratchet (323) is fixedly connected with a pressure plate (326), and the pressure plate (326) cooperates with the ratchet (315); the lower side of the fixed cylinder (320) is fixedly connected with a limit rod (328), and the limit rod (328) is slidably connected to the fixed plate (310);

[0063] The rotating rod (325) is fixedly connected to a fixing ring (327) at the lower side of the ratchet (323), and the fixing ring (327) cooperates with the ratchet (323); the ratchet (323) will not move downward in the initial position;

[0064] The moving assembly comprises a folding rod (110), a rack (111), a gear (341) and a shifting plate (342); the lower end of the lower cylinder (101) is fixedly connected with the folding rod (110); the lower end of the folding rod (110) is fixedly connected with the rack (111); the fixed plate (310) is fixedly connected with a ring frame (3); the upper side of the fixed cylinder (320) is rotatably connected with a gear (341); the gear (341) is meshed with the rack (111); the lower side of the gear (341) is fixedly connected with a collar (340); the collar (340) is rotatably connected to the fixed cylinder (320); the collar (340) is provided with a transverse groove (132) at the position of the collar (340); the collar (340) is fixedly connected with a shifting plate (342); the shifting plate (342) is slidably connected in the transverse groove (132);

[0065] A plurality of clamping grooves (301) are arranged in the transverse groove (132), a clamping ball (343) is fixedly connected to the shifting plate (342), and the clamping ball (343) is clamped and matched with the clamping groove (301);

[0066] The lower tube (101) is slidably connected with a sliding column (102), and the pull wire (120) passes through the sliding column (102) and is slidably connected with the sliding column (102); the pull wire (120) and the sliding column (102) are tightly abutted, and a bottom spring (103) is fixedly connected to the lower side of the sliding column (102), and the bottom plate (153) cooperates with the sliding column (102);

[0067] The inner frame (1) is fixedly connected to an inflation branch pipe (201) near the lower tube (101), the inflation branch pipe (201) is fixedly connected to an inflation pipe (202), and the inflation pipe (202) is fixedly connected to an inflation device;

[0068] The inflation device is provided with an inflation ball (203).

[0069] In summary, the present invention provides an air bag obstetric aid for gynecologists. During the delivery process of a primipara, the inner frame (1) and the arc air tube (2) are folded, and the inner frame (1) is used as a supporting component to penetrate into the soft birth canal. The paddle (342) is toggled so that the gear (341) drives the rack (111) to move in the ring frame (3) in the respective length directions. The rack (111) unfolds the four inner frames (1) through the folding rod (110). The arc air bags on the inner frame (1) are inflated through the inflation device so that the arc air bags of the same height form an annular structure. All the arc air bags form a cylindrical structure. The soft birth canal is physically expanded. The card ball (343) of the paddle (342) is engaged with the card slot (301) to ensure that the expanded position is stable. The motor (311) is controlled by the chip of the prior art. The motor (311) cooperates with the lower plate (321) through the screw rod (312) so that the fixed column (313) rotates and moves upward relative to the fixed cylinder (320). In this process, the motor (311) stops under the cooperation of the ratchet wheel (315) and the ratchet teeth (323) and will not reverse. The fixed column (313) cooperates with the limit groove (316) and the limit plate (330) to rotate the stepped shaft (332), and the pull wire (120) is wound around the upper part of the stepped shaft (332). The pull wire (120) pulls the slide (130) downward and stretches the elastic rope (131). In this process, due to the effects of the upper hole (133), the inclined groove (138), the middle hole (139) and the lower hole (154), the gas in the arc airbag will not change.

[0070] The lower inclined surface (155) of the slide (130) pushes the limit block (160), and the side frame (137) in the slide (130) cooperates with the limit block (160), and the air sealing cushion (162) blocks the middle hole (139) of the column. At the same time, the slide (130) continues to move downward, the middle plate assembly cannot move downward, and pulls the bottom plate (153) upward to block the lower hole (154) of the column, and stretches the lower spring (151), so that the movement of the slide (130) extracts the air of the corresponding arc airbag, the arc airbag shrinks, and the arc airbag wraps the inner frame (1), so that the deflated arc airbag relaxes the pressure on the soft birth canal. When the middle plate assembly moves relatively to the upper side of the slide (130), the inclined block (135) cooperates with the inclined groove (138) to move the side The frame (137) moves toward the middle and compresses the middle spring (142), the side frame (137) is separated from the limit block (160), and is reset longitudinally by the lower spring (151), and the middle spring (142) pushes the side frame (137) to reset horizontally, and the arc airbags are reciprocated one by one. During this process, other arc airbags are relatively slightly deformed, so as to achieve the effect of discontinuous compression, maintain blood flow while maintaining the soft birth canal to increase the stretching degree, and avoid the problem of vaginal fistula caused by long-term continuous compression; when the slide frame (130) moves downward and approaches the position of the lower tube (101), the bottom plate (153) at the lower side of the lower hole (154) of the slide frame (130) presses downward against the column slide column (102), and the slide column (102) 2) compress the spring and push the bottom plate (153) upward to block the lower hole (154) of the column. The downward movement of the slide (130) will extract the gas in the air cavity (210) of all the arc air tubes (2) on an inner frame (1), and relax the soft birth canal as a whole, but always keep it in a stretched state. Through continuous relaxation, blood circulation is guaranteed. When the pull wire (120) is wound, the push ring (314) pushes the ratchet (323) upward, and the ratchet (323) is pushed away from the ratchet (315) by the cone frame (331). The pull wire (120) is pulled by the elastic rope (131) to reset the slide (130) and pull the stepped shaft (332) to reverse. The slide (130) is matched with the side inclined surface (163) of the limit block (160). The step shaft (332) is reversed and reset upwards through the cooperation of the limit groove (316) and the limit plate (330), and the ratchet (315) is not limited by the ratchet teeth (323), so that when the motor (311) stops, the screw (312) is reversed and reset, and the ratchet (315) is placed on the pressure plate (326) downward to reset the ratchet teeth (323) downwards, and then enters the next cycle, continuously expanding the soft birth canal while continuously and automatically relaxing the compression position. When the fetal head descends, the soft birth canal of the primipara can expand a larger space like that of a multipara, so that the fetal head can continue to descend smoothly after descending 5 cm, and the second stage of labor progresses smoothly, reducing caesarean sections and avoiding secondary injuries of vaginal fistula caused by operation.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0072] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An air bag obstetric aid for gynecological midwives, characterized in that: It includes an expansion part, a movable part and a control part. The expansion part includes an inner frame and an arc air tube. A plurality of arc air tubes are fixedly connected to the inner frame. The inner frame is provided with four groups. The four groups of arc air tubes on the inner frame form a circular ring structure. A control part is provided on the lower side of the inner frame. The control part is provided with an adjustment component for adjusting the distance between the inner frames on the opposite sides. A movable part is slidably connected inside the inner frame. The movable part includes an air suction component. The air suction component cooperates with the arc air tube.

2. The airbag obstetric aid for obstetricians and midwives as claimed in claim 1, characterized in that: An air cavity is opened in the middle of the arc air tube, the inner frame is in an inverted cylindrical structure, the middle of the inner frame is connected to the air cavity of the arc air tube, and the inner frame is radially slidably connected to a limit block at the upper edge of the air cavity for limiting from top to bottom; The air suction component of the movable part includes a slide, and the control part includes a movable component for controlling sliding movement. A transverse groove is provided in the middle of the slide, and the transverse groove corresponds to the air cavity of the arc air tube. A middle plate component for changing the ventilation state is slidably connected in the transverse groove, and air holes matching the ventilation state of the middle plate component are provided on the slide; the middle plate component and the limit block are limited and blocked.

3. The air bag obstetric aid for obstetricians and midwives as claimed in claim 2, characterized in that: The air holes on the slide include an upper hole and a lower hole, the upper side of the slide is provided with the upper hole, and the lower side of the slide is provided with the lower hole; The middle plate assembly comprises a middle frame and side frames, the middle frame is slidably connected in the transverse groove up and down, side frames are arranged on both sides of the middle frame, a connecting frame is fixedly connected to the side of the side frame close to the middle frame, the connecting frame is slidably connected in the middle frame, and a middle spring is fixedly connected between the connecting frames on both sides; a shield is fixedly connected to the upper part of the side frame close to one end of the middle frame on one side, and a shield is fixedly connected to the lower part of the side frame close to one end of the middle frame on the other side, the shield is slidably connected to the middle frame, and the length of the shield is greater than the length of the connecting frame; the middle frame is frame-shaped, so that the shield covers the gap where the connecting frame cannot fit tightly with the sliding frame; The slide frame is fixedly connected with an inclined block on the upper side of the transverse groove, an inclined groove is opened on the upper side of the side frame, the inclined block cooperates with the inclined groove, a middle hole is opened on the lower side of the side frame, and the middle hole is connected with the inclined groove; a side spring is fixedly connected between the limit block and the inner frame, an air sealing cushion is fixedly connected to the limit block, and the air sealing cushion cooperates with the middle hole accordingly; A lower column is fixedly connected to the lower side of the middle frame, and the lower column extends downwardly from the lower hole. A lower spring is fixedly connected to the lower side of the lower column, and a bottom plate is fixedly connected to the lower side of the lower spring. An outer cylinder is fixedly connected to the upper side of the bottom plate, and the lower column is slidably connected in the outer cylinder. The diameter of the lower hole is larger than the diameter of the outer cylinder, and the diameter of the bottom plate is larger than the diameter of the lower hole.

4. The air bag obstetric aid for obstetricians and midwives as claimed in claim 3, characterized in that: A side slope is provided on the lower side of the limit block, a lower slope is provided on the lower end of the inner frame, and an upper slope is provided on the upper side of the transverse groove of the inner frame. The upper and lower slopes cooperate with the upper side surface of the limit block, and the side slope cooperates with the upper side surfaces of the inner frame and the side frame.

5. The air bag obstetric aid for obstetricians and midwives as claimed in claim 4, characterized in that: The adjustment assembly includes an elastic rope and a pull wire, the upper end of the inner frame is fixedly connected to the elastic rope, and the lower side of the inner frame is fixedly connected to the pull wire; The lower end of the inner frame is fixedly connected to a lower cylinder, the pull wire passes through the lower cylinder, a fixed cylinder is provided at the lower side of the expansion part, a lower plate is fixedly connected to the lower side of the fixed cylinder, an upper plate is fixedly connected to the upper side of the fixed cylinder, a fixed plate is provided at the lower side of the fixed cylinder, a motor is fixedly connected to the fixed plate, a screw is provided on the motor, and the screw is threadedly connected to the lower plate; The screw rod is fixedly connected with a fixing column, the upper end of the fixing column is fixedly connected with a ratchet, a ratchet is arranged beside the ratchet, a side spring is fixedly connected between the ratchet and the fixing cylinder, one side of the ratchet is rotatably connected with a rotating rod, and the rotating rod extends downward and is fixedly connected to the lower plate; A limiting groove is provided between the ratchet and the fixed column, and a limiting plate is slidably connected in the limiting groove; the upper end of the limiting plate is fixedly connected to a cone frame, and the upper end of the cone frame is fixedly connected to a stepped shaft, and the stepped shaft is rotatably connected to the upper plate; the stepped shaft and the cone frame clamp the upper plate in the middle, and a top plate is fixedly connected to the stepped shaft, and the lower end of the pull wire is fixedly connected to the upper part of the stepped shaft; the length of the ratchet is from the lower edge of the ratchet to the lower edge of the cone frame, and a push ring is fixedly connected to the lower side of the fixed column, and the push ring cooperates with the ratchet; the lower end of the ratchet is fixedly connected to a pressure plate, and the pressure plate cooperates with the ratchet; the lower side of the fixed cylinder is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the fixed plate.

6. The air bag obstetric aid for obstetricians and midwives as claimed in claim 5, characterized in that: The rotating rod is fixedly connected with a fixing ring at the lower side of the ratchet, and the fixing ring cooperates with the ratchet; the ratchet will not move downward in the initial position.

7. The air bag obstetric aid for obstetricians and midwives according to claim 6, characterized in that: The moving assembly includes a folding rod, a rack, a gear and a shift plate. The lower end of the lower tube is fixedly connected to the folding rod, the lower end of the folding rod is fixedly connected to the rack, the fixed plate is fixedly connected to a ring frame, the upper side of the fixed tube is rotatably connected to a gear, the gear is meshed with the rack, the lower side of the gear is fixedly connected to a ring, the ring is rotatably connected to the fixed tube, the ring is opened with a transverse groove at the ring position, the ring is fixedly connected to a shift plate, and the shift plate is slidably connected in the transverse groove.

8. The airbag obstetric aid for obstetricians and midwives according to claim 7, characterized in that: A plurality of clamping slots are arranged in the transverse slot, and a clamping ball is fixedly connected to the dial plate, and the clamping ball is clamped and matched with the clamping slots.

9. The air bag obstetric aid for obstetricians and midwives as claimed in claim 8, characterized in that: A sliding column is slidably connected in the lower cylinder, and the pull wire passes through the sliding column and is slidably connected to the sliding column; the pull wire is tightly abutted against the sliding column, a bottom spring is fixedly connected to the lower side of the sliding column, and the bottom plate cooperates with the sliding column.

10. The air bag obstetric aid for obstetricians and midwives according to claim 9, characterized in that: The inner frame is fixedly connected with an inflation branch pipe near the lower tube, the inflation branch pipe is fixedly connected with an inflation pipe, and the inflation pipe is fixedly connected with an inflation device.

Images