Special pad for obstetrical operation

Abstract

The invention provides a special obstetric operation pad which comprises a hollow pad body, back air bags are arranged on the pad body and correspond to the back of the body, a supporting device is arranged in the pad body, and the supporting device comprises a bottom frame, an arc-shaped guide rail, a driving mechanism and two sets of arc-shaped supporting plates. The arc-shaped guide rails are arranged on the bottom frame, the two sets of arc-shaped supporting plates are symmetrically arranged and are in sliding fit with the arc-shaped guide rails, supporting air bags are arranged on the inner sides of the arc-shaped supporting plates at intervals in the length direction of the arc-shaped supporting plates, and through grooves allowing the arc-shaped supporting plates to stretch out are formed in the positions, located on the two sides of the back air bag, of the cushion body. The supporting air bag located on the lower portion has a certain upward inclination angle, so that the supporting air bag located on the lower portion can upwards extrude the lower portion of the pregnant woman side of the body, compression on inferior vena cava is relieved, the return blood volume is increased, the supine position hypotension syndrome is avoided or relieved, and the safety of a mother and an infant is improved.

Description

Technical Field

[0001] The invention relates to the technical field of obstetric surgery auxiliary instruments, in particular to a special pad for obstetric surgery. Background Art

[0002] When a full-term pregnant woman lies in the supine position, the huge uterus compresses the inferior vena cava, resulting in a significant decrease in the amount of blood returning to the heart in the lower body, which makes it easy to develop supine hypotension syndrome. For unanesthetized pregnant women, the occurrence of hypotension can be reduced due to the self-regulation of blood flow and the support of the uterus by the abdominal wall muscles. After anesthesia, this support effect disappears, and the enlarged uterus directly compresses the inferior vena cava, or even completely blocks it. The sudden decrease in the amount of blood returning to the heart leads to insufficient cardiac output, causing severe hypotension and endangering the safety of the mother and fetus. Therefore, active and effective measures must be taken after anesthesia to prevent the occurrence of severe hypotension.

[0003] The traditional method is to tilt the operating table 15-30 degrees to the left so that the uterus is tilted to one side to avoid the inferior vena cava to reduce the degree of hypotension, but it is difficult to implement effectively during surgery. At present, airbags are often used to support the side of the parturient's uterus, but because the airbags do not provide effective support, and the airbags are mostly made of rubber, they are easy to slip on the surgical pad. Once the airbags slip to the side, they lose support for the parturient's uterus, and the effect is not good. If a bracket fixed on the surgical pad is used to support the airbag, there are problems with the disassembly, assembly and storage of the bracket. Based on this, this case was born. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the present invention provides a special pad for obstetric surgery, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a special pad for obstetric surgery, comprising a pad body with a hollow interior, on which back airbags are arranged, and the back airbags correspond to the back of a body, and a supporting device is arranged in the pad body, and the supporting device comprises a base frame, an arc-shaped guide rail, a driving mechanism and two groups of arc-shaped support plates, the arc-shaped guide rail is arranged on the base frame, the two groups of arc-shaped support plates are symmetrically arranged and slidably adapted on the arc-shaped guide rail, and the inner side of the arc-shaped support plate is provided with supporting airbags at intervals along its length direction, and through grooves for the arc-shaped support plates to extend out are provided on both sides of the back airbags on the pad body, and the driving mechanism is used to drive the arc-shaped support plates to slide on the arc-shaped guide rails along their arc-shaped directions, and the supporting airbags on the two arc-shaped support plates correspond to the two sides of the pregnant uterus of the body.

[0008] Preferably, the driving mechanism includes a driving motor, a linkage assembly, two sets of arc-shaped racks, and a driving gear. An arc-shaped rack is arranged on the side of each arc-shaped support plate along its arc direction. The arc-shaped rack is also slidably adapted in the arc-shaped guide rail. The driving gear is arranged in the base frame through a gear rack and meshes with the arc-shaped rack. The driving motor is arranged on the base frame, and the output shaft is connected to one of the driving gears. The two driving gears rotate in opposite directions in a linked manner through the linkage assembly.

[0009] Preferably, the linkage assembly includes two reversing gears and two sets of pulley one, pulley two, and a transmission belt. The two reversing gears are arranged in the base frame through a gear frame and mesh with each other. The two pulleys one are coaxially connected to the two reversing gears, and the two pulleys two are coaxially connected to the two driving gears. Each corresponding set of pulley one is connected to pulley two through a transmission belt.

[0010] Preferably, a storage cavity is provided on the arc-shaped support plate corresponding to each support airbag, a rotating shaft is pivotally connected in the storage cavity, the tail of the support airbag is fixed on the rotating shaft, and the deflated support airbag can be rolled up by rotating the rotating shaft.

[0011] Preferably, a handle coaxially connected to the rotating shaft is provided outside the arc-shaped support plate.

[0012] Preferably, the arc-shaped support plate is also provided with an inflation mechanism for inflating and deflation of the support airbag, and the inflation mechanism inflates and deflates a single support airbag independently or multiple support airbags in a multi-link manner.

[0013] Preferably, the inflation mechanism includes a hard air intake pipe, a bearing, a connecting pipe, and an air pump. The interior of the rotating shaft is hollow. One end of the air intake pipe is pivotally connected to the center of the end of the rotating shaft through a bearing. The air intake pipe is fixed on the inner ring of the bearing. The end of the air intake pipe extending into the rotating shaft is connected to the tail of the supporting airbag fixed on the rotating shaft through a connecting pipe. A sufficient length of the connecting pipe is reserved on the rotating shaft. The other end of the air intake pipe is connected to the air pump, and the air pump can be fixed on an arc-shaped support plate.

[0014] Preferably, a limit block is arranged in the middle of the slideway of the arc guide rail, and two groups of arc support plates are respectively located on both sides of the limit block. The axial length of the limit block is smaller than the axial length of the arc guide rail, and the arc rack is slidably adapted to the axial edge of the arc guide rail, and the sliding of the arc rack is not affected by the limit block.

[0015] (III) Beneficial effects

[0016] The present invention provides a special pad for obstetric surgery, which has the following beneficial effects:

[0017] 1. The obstetric surgery-specific pad sets the support airbag at the bottom with a certain upward inclination angle, so that the support airbag at the bottom can form an upward squeeze on the lower part of the pregnant uterus of the body, reduce the pressure on the inferior vena cava, increase the amount of blood returning to the heart, thereby avoiding or reducing the occurrence of supine hypotension syndrome and improving the safety of mother and baby. At the same time, it can also reduce or not use pressor drugs, reducing drug damage to mother and baby.

[0018] 2. When the arc-shaped support plate needs to be retracted into the arc-shaped guide rail, the support airbag can be completely deflated first, and then the support airbag can be rolled up on the rotating shaft to avoid contact between the support airbag and the through groove when the arc-shaped support plate is retracted, thereby preventing it from getting stuck.

[0019] 3. The special pad for obstetric surgery realizes rotation in opposite directions based on the mutual meshing of two reversing gears. The two reversing gears drive the two driving gears to rotate through the pulley, so that the two driving gears rotate in opposite directions. Only one driving motor is required to realize the rotation of the two driving gears in opposite directions, which not only saves the motor, but also has high driving synchronization of the two driving gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an external axonometric view of the pad body of the present invention;

[0021] Figure 2 It is a partial isometric view of the side section of the pad body of the present invention;

[0022] Figure 3 It is a schematic diagram of the linkage assembly structure of the present invention;

[0023] Figure 4 It is a middle cross-sectional plan view of the arc guide rail of the present invention;

[0024] Figure 5 It is a cross-sectional plan view of the arc-shaped support plate of the present invention;

[0025] Figure 6 This is a diagram showing the supporting state of the support airbag of the present invention on the pregnant uterus of the body.

[0026] In the figure: 1 pad body, 2 support device, 3 linkage assembly, 4 inflation mechanism, 5 through groove, 6 back airbag, 7 body, 8 handle, 21 chassis, 22 arc guide rail, 23 arc support plate, 24 support airbag, 25 arc rack, 26 drive gear, 27 drive motor, 28 storage cavity, 29 rotating shaft, 30 limit block, 31 reversing gear, 32 pulley 1, 33 pulley 2, 34 transmission belt, 41 intake pipe, 42 bearing, 43 connecting pipe. DETAILED DESCRIPTION

[0027] The embodiment of the present invention provides a special pad for obstetric surgery, such as Figure 1As shown, the cushion body 1 is hollow inside, and back airbags 6 are arranged on the cushion body 1. The back airbags 6 correspond to the back of the body 7. As a preferred solution, each back airbag 6 is arranged along the length direction of the body 7, and there is a certain gap between two adjacent back airbags 6. With the support of the back airbags 6, the pressure on the inferior vena cava can be initially reduced.

[0028] like Figure 2 As shown, a support device 2 is provided in the cushion body 1, and the support device 2 includes a base frame 21, an arc-shaped guide rail 22, a driving mechanism, and two groups of arc-shaped support plates 23. The arc-shaped guide rail 22 is tray-shaped, and its bottom is fixed on the base frame 21 in the center. The two groups of arc-shaped support plates 23 are symmetrically arranged and slidably adapted on the arc-shaped guide rail 22. A through groove 5 is provided on both sides of the back airbag 6 on the cushion body 1 for the arc-shaped support plates 23 to extend out. The arc length of the arc-shaped guide rail 22 is about 90°, and the arc length of a single arc-shaped support plate 23 is about 45°. When the two arc-shaped support plates 23 are fully extended from the arc-shaped guide rail 22, the total arc length of the three is about 180°. The two arc-shaped support plates 23 form a support form for both sides of the torso 7.

[0029] like Figure 2-3 As shown, the driving mechanism is used to drive the arc-shaped support plate 23 to slide on the arc-shaped guide rail 22 along its arc direction.

[0030] The driving mechanism includes a driving motor 27 , a linkage assembly 3 , two sets of arc-shaped racks 25 , and a driving gear 26 . An arc-shaped rack 25 is arranged on the side of each arc-shaped support plate 23 along its arc direction, and the arc-shaped rack 25 is also slidably fitted in the arc-shaped guide rail 22 .

[0031] like Figure 3 As shown, a limit block 30 is set in the middle of the slideway of the arc guide rail 22, and two groups of arc support plates 23 are respectively located on both sides of the limit block 30. The axial length of the limit block 30 is smaller than the axial length of the arc guide rail 22. The two groups of arc racks 25 are slidably adapted to the axial end edges of the arc guide rail 22, and the sliding of the arc racks 25 is not affected by the limit block 30.

[0032] The limiting block 30 is used to separate the two groups of arc-shaped support plates 23 , and the two groups of arc-shaped support plates 23 can be completely received in the slideways of the arc-shaped guide rails 22 on both sides of the limiting block 30 .

[0033] The driving gear 26 is arranged in the base frame 21 through the gear frame and meshes with the arc-shaped rack 25. The driving gear 26 drives the arc-shaped rack 25 to slide along the arc direction of the arc-shaped guide rail 22. The two driving gears 26 drive the two arc-shaped racks 25 respectively. The driving motor 27 is arranged on the base frame 21, and the output shaft is connected to one of the driving gears 26. The two driving gears 26 rotate in opposite directions in a linkage manner through the linkage assembly 3.

[0034] The two driving gears 26 rotate in opposite directions to drive the two arc-shaped support plates 23 to extend or retract synchronously.

[0035] like Figure 6 As shown, the inner side of the arc-shaped support plate 23 is provided with support airbags 24 at intervals along its length direction, and the support airbags 24 on the two arc-shaped support plates 23 correspond to the two sides of the pregnant uterus of the body 7. When the support airbags 24 are filled with air, the distance between the support airbags 24 and the body 7 increases from bottom to bottom, that is, the support airbags 24 at the bottom are in closer contact with the body 7. The support airbags 24 are all arranged radially toward the center of the arc-shaped support plate 23, and the support airbag 24 at the bottom is oriented at a certain upward inclination angle with the horizontal line, which is about 10-15°. The inclination angles of the upper several support airbags 24 gradually decrease, and the uppermost support airbag 24 is in a horizontal state. The support airbag 24 with an inclination at the bottom can form an upward squeeze on the lower side of the pregnant uterus of the body 7, reduce the pressure on the inferior vena cava, increase the amount of blood returning to the heart, thereby avoiding or reducing the occurrence of supine hypotension syndrome and improving the safety of mother and baby. At the same time, the use of pressor drugs can be reduced or eliminated to reduce drug damage to mother and baby.

[0036] like Figure 3 As shown, the linkage assembly 3 includes two reversing gears 31 and two groups of pulleys 1 32, pulleys 2 33, and transmission belts 34. The two reversing gears 31 are arranged in the base frame 21 through a gear frame and mesh with each other. The two pulleys 1 32 are coaxially connected to the two reversing gears 31, and the two pulleys 2 33 are coaxially connected to the two driving gears 26. Each corresponding group of pulleys 1 32 and pulleys 2 33 are connected by transmission belts 34. The two reversing gears 31 mesh with each other to achieve rotation in opposite directions. Based on this, the two reversing gears 31 drive the two driving gears 26 to rotate through the pulleys, so that the two driving gears 26 rotate in opposite directions, so that only one driving motor 27 is required to achieve the rotation of the two driving gears 26 in opposite directions, which not only saves the motor, but also has high driving synchronization of the two driving gears 26.

[0037] like Figure 5 As shown, in order to facilitate the storage of the support airbag 24, a storage cavity 28 is opened on the arc-shaped support plate 23 corresponding to each support airbag 24, and a rotating shaft 29 is pivoted in the storage cavity 28. The support airbag 24 in a fully inflated state is in a trapezoidal peak shape, and the deflated support airbag 24 is in a flat pancake shape. The tail of the support airbag 24 is fixed on the rotating shaft 29, and the inflation port of the support airbag 24 is located inside the rotating shaft 29. The deflated support airbag 24 can be rolled up by rotating the rotating shaft 29.

[0038] When the arc support plate 23 needs to be retracted into the arc guide rail 22, the support airbag 24 can be completely deflated first, and the support airbag 24 can be wound around the rotating shaft 29 to avoid contact between the support airbag 24 and the through groove 5 when the arc support plate 23 is retracted, thereby preventing it from getting stuck.

[0039] Driving embodiment 1 of the rotating shaft 29: A handle 8 coaxially connected to the rotating shaft 29 is arranged outside the arc-shaped support plate 23. Each handle 8 corresponds to a rotating shaft 29, and the rotating shaft 29 can be manually driven to rotate by the handle 8.

[0040] The second driving embodiment of the rotating shaft 29: a gear can be coaxially arranged at the end of each rotating shaft 29, and adjacent gears are arranged to mesh with each other, and one of the gears is driven by a motor to realize electric control of the retraction and extension of the support airbag 24.

[0041] like Figure 5 As shown, an inflation mechanism 4 for inflating and deflation of the support airbag 24 is also provided on the arc-shaped support plate 23 . The inflation mechanism 4 inflates and deflates a single support airbag 24 independently or multiple support airbags 24 in a multi-link manner.

[0042] like Figure 5 As shown, the inflation mechanism 4 includes a hard air intake pipe 41, a bearing 42, a connecting pipe 43, and an air pump. The interior of the rotating shaft 29 is hollow. One end of the air intake pipe 41 is pivoted to the center of the end of the rotating shaft 29 through the bearing 42. The air intake pipe 41 is fixed to the inner ring of the bearing 42, and the shape of the air intake pipe 41 remains unchanged. One end of the air intake pipe 41 extending into the rotating shaft 29 is connected to the tail of the support airbag 24 fixed on the rotating shaft 29 through the connecting pipe 43. The connecting pipe 43 is made of a rubber hose with strong plasticity. Sufficient length is reserved for the connecting pipe 43 on the rotating shaft 29, because when the rotating shaft 29 reels the support airbag 24, the connecting pipe 43 will spirally rotate accordingly. Reserving sufficient length can prevent the connecting pipe 43 from being pulled apart. When the support airbag 24 is completely wound around the rotating shaft 29, the connecting pipe 43 is also in a straight through state.

[0043] The other end of the air inlet pipe 41 is connected to an air pump, which can be fixed on the arc-shaped support plate 23. The air pump model can be a Fanttik X8 APEX air pump, which can have both inflation and deflation functions. An air pump can be connected to each air inlet pipe 41 through a multi-connected branch pipe, and an air pump can be independently set on the arc-shaped support plates 23 on both sides.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special pad for obstetric surgery, comprising a pad body (1) with a hollow interior, characterized in that: The cushion body (1) is provided with back airbags (6) arranged in an array, the back airbags (6) corresponding to the back of the body (7), the cushion body (1) is provided with a support device (2), the support device (2) comprises a base frame (21), an arc-shaped guide rail (22), a driving mechanism and two groups of arc-shaped support plates (23), the arc-shaped guide rail (22) being arranged on the base frame (21), the two groups of arc-shaped support plates (23) being symmetrically arranged and slidably adapted on the arc-shaped guide rail (22). ), support airbags (24) are arranged on the inner side of the arc-shaped support plate (23) at intervals along its length direction, and through grooves (5) for the arc-shaped support plate (23) to extend out are opened on both sides of the back airbag (6) on the cushion body (1), and the driving mechanism is used to drive the arc-shaped support plate (23) to slide on the arc-shaped guide rail (22) along its arc direction, and the support airbags (24) on the two arc-shaped support plates (23) correspond to the two sides of the uterus of the body (7).

2. The obstetric surgery pad according to claim 1, characterized in that: The driving mechanism comprises a driving motor (27), a linkage assembly (3), two groups of arc-shaped racks (25), and a driving gear (26). A side portion of each arc-shaped support plate (23) is provided with an arc-shaped rack (25) along its arc direction. The arc-shaped rack (25) is also slidably adapted in the arc-shaped guide rail (22). The driving gear (26) is arranged in the base frame (21) through a gear rack and meshes with the arc-shaped rack (25). The driving motor (27) is arranged on the base frame (21), and the output shaft is connected to one of the driving gears (26). The two driving gears (26) rotate in opposite directions in a linkage manner through the linkage assembly (3).

3. The obstetric surgery pad according to claim 2, characterized in that: The linkage assembly (3) comprises two reversing gears (31) and two groups of pulleys one (32), pulley two (33) and a transmission belt (34). The two reversing gears (31) are arranged in a base frame (21) through a gear frame and mesh with each other. The two pulleys one (32) are respectively coaxially connected to the two reversing gears (31). The two pulleys two (33) are respectively coaxially connected to the two driving gears (26). Each corresponding group of pulleys one (32) is connected to the pulley two (33) through a transmission belt (34).

4. The obstetric surgery pad according to claim 1, characterized in that: A storage cavity (28) is provided on the arc-shaped support plate (23) corresponding to each support airbag (24), a rotating shaft (29) is pivotally connected in the storage cavity (28), the tail of the support airbag (24) is fixed on the rotating shaft (29), and the rotation of the rotating shaft (29) can roll up the deflated support airbag (24).

5. The obstetric surgery pad according to claim 4, characterized in that: A handle (8) coaxially connected to the rotating shaft (29) is arranged outside the arc-shaped supporting plate (23).

6. The obstetric surgery pad according to claim 4, characterized in that: The arc-shaped support plate (23) is also provided with an inflation mechanism (4) for inflating and deflation of the support airbag (24); the inflation mechanism (4) inflates and deflates a single support airbag (24) independently or multiple support airbags (24) in a multi-link manner.

7. The obstetric surgery pad according to claim 6, characterized in that: The inflation mechanism (4) comprises a hard air intake pipe (41), a bearing (42), a connecting pipe (43), and an air pump. The interior of the rotating shaft (29) is hollow. One end of the air intake pipe (41) is pivotally connected to the center of the end of the rotating shaft (29) through the bearing (42). The air intake pipe (41) is fixed to the inner ring of the bearing (42). One end of the air intake pipe (41) extending into the rotating shaft (29) is connected to the rear end of the support airbag (24) fixed to the rotating shaft (29) through the connecting pipe (43). A sufficient length of the connecting pipe (43) is reserved on the rotating shaft (29). The other end of the air intake pipe (41) is connected to the air pump, and the air pump can be fixed on the arc-shaped support plate (23).

8. The obstetric surgery pad according to claim 2, characterized in that: A limiting block (30) is arranged in the middle of the slideway of the arc-shaped guide rail (22), and two groups of arc-shaped support plates (23) are respectively located on both sides of the limiting block (30), the axial length of the limiting block (30) is smaller than the axial length of the arc-shaped guide rail (22), and the arc-shaped rack (25) is slidably adapted to the axial edge of the arc-shaped guide rail (22), and the sliding of the arc-shaped rack (25) is not affected by the limiting block (30).

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