Obstetrical nursing membrane rupture midwifery device with negative pressure balancing function

Abstract

The invention relates to the technical field of obstetrical nursing, in particular to an obstetrical nursing membrane rupture midwifery device with a negative pressure balancing function, which comprises an inserting cylinder, an endoscope is fixedly mounted at the upper part of the rear end in the inserting cylinder, and a membrane rupture assembly is arranged at the rear end in the inserting cylinder. The film breaking assembly comprises a partition plate fixed to the rear end of the interior of the inserting barrel, a plurality of film guiding holes are formed in the partition plate, a cutter groove is formed in the rear end face of the partition plate, and a film breaking blade is movably installed in the cutter groove. According to the amniotic membrane rupturing device, a baffle can block a fetus in an amniotic membrane, so that the soft outer wall of the amniotic membrane enters a membrane guiding hole, the fetus in the amniotic membrane cannot be damaged during rupture of the amniotic membrane, and meanwhile, a membrane rupturing blade is located in an inserting cylinder, so that when rupture of the amniotic membrane is carried out, the fetus can be ruptured conveniently. And the membrane rupture blade does not hurt a fetus or a puerpera.

Description

Technical Field

[0001] The invention relates to the technical field of obstetric nursing, in particular to an obstetric nursing membrane rupturing and delivery-aiding device with a balanced negative pressure function. Background Art

[0002] The obstetric nursing rupture of membranes and midwifery device, usually referred to as artificial rupture of membranes, is a midwifery tool or method used in obstetric nursing. Artificial rupture of membranes means that when the doctor performs an internal examination on the parturient, he uses a tool to artificially tear the fetal membrane into a small hole to allow the amniotic fluid to flow out. The main purpose of this operation is to strengthen the contraction of the parturient's uterus, thereby accelerating the progress of labor.

[0003] The traditional method of artificial rupture of membranes is for doctors or midwives to use specific instruments, such as rupture forceps or special rupture hooks, to artificially tear the fetal membrane into small holes during internal inspection to allow the amniotic fluid to flow out. This method is relatively simple to operate, but requires doctors or midwives to have rich experience and skills to ensure the safety and effectiveness of the operation. When rupturing membranes with rupture forceps, the cervix of the parturient will first be internally inspected to confirm the state of the amniotic membrane. If the amniotic membrane is not ruptured or delivery is obstructed, the doctor will gently place and clamp one side of the amniotic membrane with the rupture forceps, and then carefully cut the cyst membrane to allow the amniotic fluid to flow out, thereby helping the birth of the fetus.

[0004] In the existing technical solutions, when rupturing the membranes, most of them use membrane rupture forceps or special membrane rupture hooks. During internal inspection, the fetal membrane is artificially torn into small holes to allow the amniotic fluid to flow out. Although the use of membrane rupture forceps and membrane rupture hooks is relatively safe, there are still certain potential risks. During operation, the membrane rupture forceps and membrane rupture hooks will penetrate into the cervical os. If the operation is improper, it may cause damage to the fetus or the mother. Summary of the invention

[0005] The purpose of the present invention is to provide an obstetric nursing membrane rupture and delivery device with a balanced negative pressure function. The baffle plate can block the fetus inside the amniotic membrane, so that the soft outer wall of the amniotic membrane can enter the guide membrane hole, and then when the membrane is ruptured, the fetus inside the amniotic membrane will not be damaged. At the same time, the membrane rupture blade is located inside the insertion tube. Therefore, when rupturing the membrane, the membrane rupture blade will neither hurt the fetus nor the mother, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a membrane rupture and delivery assistance device for obstetric care with a balanced negative pressure function, comprising a plug-in tube, an endoscope is fixedly installed on the upper part of the inner rear end of the plug-in tube, a membrane rupture assembly is arranged at the inner rear end of the plug-in tube, the membrane rupture assembly comprises a baffle plate fixed at the inner rear end of the plug-in tube, a guide membrane hole is opened inside the baffle plate, a plurality of guide membrane holes are arranged, a knife groove is opened on the rear end surface of the baffle plate, a membrane rupture blade is movably installed inside the knife groove.

[0007] Preferably, a top bucket is fixedly mounted at the rear end of the plug-in tube, and an expansion and extrusion assembly is provided together with the top bucket and the inner and outer parts of the plug-in tube. The expansion and extrusion assembly includes a heating wire embedded in the outer wall of the plug-in tube.

[0008] Preferably, the expansion and extrusion assembly further comprises an extrusion bag fixedly mounted on the outer end surface of the plug-in tube, and the inner end surface of the extrusion bag is fixedly connected to a pressure relief valve tube running through the interior of the plug-in tube.

[0009] Preferably, a limiting bag groove is provided inside the top bucket, an expansion bag is movably installed inside the limiting bag groove, a connecting air pipe runs through the inner wall of the top bucket, and the extrusion bag is connected to the expansion bag through the connecting air pipe.

[0010] Preferably, a drainage negative pressure component is commonly provided inside and at the front end bottom of the plug-in tube, and the drainage negative pressure component comprises a negative pressure drainage groove opened inside the plug-in tube, and the negative pressure drainage groove is interconnected with the extrusion bag through a pressure relief valve tube.

[0011] Preferably, the drainage negative pressure assembly also includes a drainage tube fixed at the front end of the bottom of the plug-in tube, a control valve is fixedly installed at the middle position of the drainage tube, the bottom end of the drainage tube is fixedly connected to a vacuum negative pressure bag, and the negative pressure drainage groove is interconnected with the vacuum negative pressure bag through the drainage tube.

[0012] Preferably, a membrane rupture auxiliary control component is arranged in front of the membrane rupture component, and the membrane rupture auxiliary control component includes a positioning ring frame fixedly installed in the inner wall of the plug-in tube, a first plug hole is opened in the middle position of the positioning ring frame, and an auxiliary control rod is inserted into the first plug hole.

[0013] Preferably, a mounting groove is formed on the rear end surface of the positioning ring frame, a lever is movably installed inside the mounting groove, the lever is an L-shaped structure, and the lever is fixedly connected to the outer wall of the auxiliary control rod.

[0014] Preferably, a positioning guide ring is slidably installed at the edge of the rear end face of the positioning ring frame, a film breaking knife seat is fixedly installed on the rear end face of the positioning guide ring, a second socket matching the auxiliary control rod is provided in the middle position of the film breaking knife seat, and a film breaking guide groove is provided inside the film breaking knife seat.

[0015] Preferably, a spring and a top bag are fixedly installed inside the membrane breaking guide groove, the number of the springs is provided with three, the top bag is located between adjacent springs, and an air guide tube penetrating the interior of the plug-in tube is fixedly installed inside the membrane breaking knife seat, and the top bag is connected with the extrusion bag through the air guide tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The baffle plate provided in the present invention can block the fetus inside the amnion, so that the soft outer wall of the amnion can enter the guide membrane hole, and then when the membrane is broken, the fetus inside the amnion will not be damaged. At the same time, the membrane breaking blade is located inside the plug-in tube. Therefore, when breaking the membrane, the membrane breaking blade will neither hurt the fetus nor the mother. The setting of the baffle plate and the membrane breaking blade fully considers the safety of the fetus and the mother. The baffle plate can block the fetus inside the amnion to prevent it from being affected by negative pressure suction; and the membrane breaking blade is located inside the plug-in tube, which avoids direct damage to the fetus and the mother during the membrane breaking process.

[0018] 2. The outer wall of the amniotic membrane of the present invention protrudes into the negative pressure drainage groove through the guide membrane hole of the baffle plate. The negative pressure generated by the vacuum negative pressure bag can quickly act on the outer wall of the amniotic membrane, and the outer wall of the amniotic membrane is more easily protruded into the negative pressure drainage groove through the suction and pulling effect. This process accelerates the process of rupturing membranes and reduces the time and difficulty of manual operation of doctors. By adjusting the control valve, doctors can accurately control the negative pressure in the negative pressure drainage groove. This controllability enables doctors to adjust the negative pressure intensity as needed during the process of rupturing membranes, thereby more accurately controlling the progress of rupturing membranes. At the same time, the body fluids collected by the vacuum negative pressure bag can facilitate medical staff to observe the discharge of amniotic fluid.

[0019] 3. The present invention can ensure mutual fit between the amniotic membrane and squeeze the amniotic membrane under the coordination of the extension of the top bucket and the expansion of the expansion bag. At the same time, under the squeezing action of the expansion bag, the soft amniotic membrane can be squeezed into the funnel-shaped top bucket, thereby providing squeezing assistance for further rupture of membranes and negative pressure drainage. Through the joint expansion of the expansion bag and the squeezing bag, the lower body of the pregnant woman can be expanded to a certain extent. The expansion of the expansion bag and the squeezing bag can provide a gentle and lasting expansion force for the cervix, which helps to promote the maturation and expansion of the cervix. This is especially important for pregnant women who need induced labor or planned delivery but have immature cervical conditions.

[0020] 4. The top bag of the present invention expands itself, thereby overcoming the resistance of the spring to push the membrane rupture blade in the membrane rupture guide groove to move outward, thereby pushing the membrane rupture blade to cut the part of the wall membrane of the amniotic membrane that protrudes through the guide membrane hole of the baffle plate into the negative pressure drainage groove. At the same time, the squeezing bag will be squeezed back and forth under the action of the contraction and expansion of the lower body of the pregnant woman, and with the contraction of the spring, it can have a cyclic cutting effect on the amniotic membrane, thereby achieving the purpose of membrane rupture.

[0021] 5. The top end of the auxiliary control rod of the present invention abuts against the membrane rupture blade, so that the outer wall of the amniotic membrane can be better cut. At the same time, when the cutting effect is not good, the auxiliary control rod can be further squeezed, and the lever on the auxiliary control rod extends from the inside of the assembly groove. At this time, the operator rotates the auxiliary control rod, and the auxiliary control rod can drive the lever of the L-shaped structure to rotate together. When the lever of the L-shaped structure rotates, it will squeeze the membrane rupture knife seat on one side, which can push the membrane rupture knife seat to rotate together, and then drive the membrane rupture blade on the membrane rupture knife seat to rotate, so as to realize the rotational cutting of the part of the wall membrane of the outer wall of the amniotic membrane that protrudes into the negative pressure drainage groove through the guiding membrane hole of the baffle plate, thereby further improving the membrane rupture effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is the overall structural view of the present invention;

[0024] Figure 2 This is a schematic diagram of the outer end surface structure of the plug-in sleeve of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the plug-in tube of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal top surface structure of the plug-in tube of the present invention;

[0027] Figure 5 This is a schematic diagram of the bottom structure of the top bucket of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the top bucket of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the membrane breaking component of the present invention;

[0030] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at center A;

[0031] Fig. 9 It is a schematic diagram of the abutment structure between the top end of the auxiliary control rod and the film-breaking blade of the present invention.

[0032] Description of reference numerals:

[0033] 1. Connecting tube; 2. Expansion and extrusion assembly; 201. Extrusion bag; 202. Communication air pipe; 203. Expansion bag; 204. Limiting bag slot; 205. Pressure relief valve tube; 206. Heating wire; 3. Top bucket; 4. Drainage negative pressure assembly; 401. Negative pressure drainage slot; 402. Drainage tube; 403. Control valve; 404. Vacuum negative pressure bag; 5. Membrane rupture auxiliary control assembly; 501. Auxiliary control rod; 50 2. Positioning ring frame; 503. Assembly groove; 504. Push rod; 505. First plug hole; 6. Membrane breaking assembly; 601. Membrane breaking knife seat; 602. Membrane breaking blade; 603. Membrane breaking guide groove; 604. Spring; 605. Top bag; 606. Air guide tube; 607. Baffle plate; 608. Membrane guide hole; 609. Knife groove; 610. Second plug hole; 611. Positioning guide ring; 7. Endoscope. DETAILED DESCRIPTION

[0034] 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.

[0035] The present invention provides a technical solution:

[0036] See also Figures 1 to 4 The invention discloses an obstetric nursing membrane rupture and delivery device with balanced negative pressure function, comprising a plug-in tube 1, a top bucket 3 is fixedly installed at the rear end of the plug-in tube 1, an expansion and extrusion component 2 is jointly arranged inside and outside the top bucket 3 and the plug-in tube 1, the expansion and extrusion component 2 comprises an electric heating wire 206 embedded in the outer wall of the plug-in tube 1, the expansion and extrusion component 2 also comprises an extrusion bag 201 fixedly installed on the outer end surface of the plug-in tube 1, the inner end surface of the extrusion bag 201 is fixedly connected with a pressure relief valve pipe 205 running through the inside of the plug-in tube 1, a limiting bag groove 204 is provided inside the top bucket 3, an expansion bag 203 is movably installed inside the limiting bag groove 204, a connecting air pipe 202 runs through the inner wall of the top bucket 3, and the extrusion bag 201 is connected with the expansion bag 203 through the connecting air pipe 202.

[0037] By adopting the above technical solution, when the device is in use, the membrane rupture operation is usually performed during the interval between uterine contractions to reduce the impact on the fetus. The plug-in tube 1 and the top bucket 3 are inserted into the lower body of the pregnant woman. When in use, the device requires an external power supply and an air pump. The external power supply can provide electrical energy for the electric heating wire 206, and the external air pump can provide gas for the air supply of the squeezing bag 201. Before insertion, the electric heating wire 206 needs to be energized, and the electric heating wire 206 can preheat the plug-in tube 1 itself and the air pumped into the squeezing bag 201, so that the temperature of the device itself is the same as the body temperature of the pregnant woman, thereby The device will not irritate the pregnant woman when in use. When air is pumped into the squeezing bag 201, the gas will guide the air into the expansion bag 203 through the connecting air tube 202. When there is gas in the expansion bag 203, the expansion bag 203 itself will expand, so that the expansion bag 203 can be extended from the limiting bag groove 204 of the top bucket 3. It should be noted that when the top bucket 3 is extended into the lower body, it needs to be in contact with the amniotic membrane in the lower body of the pregnant woman, so that when the expansion bag 203 is extended and expanded, it can be in contact with the outer wall of the amniotic membrane. Therefore, with the extension of the top bucket 3 and the expansion of the expansion bag 203, , which can ensure mutual adhesion with the amniotic membrane and squeeze the amniotic membrane. At the same time, under the squeezing action of the expansion bag 203, the soft amniotic membrane can be squeezed into the funnel-shaped top bucket 3, thereby providing squeezing assistance for further rupture of membranes and negative pressure drainage. Through the joint expansion action of the expansion bag 203 and the squeezing bag 201, a certain auxiliary expansion effect can be played on the lower body of the pregnant woman. The expansion of the expansion bag 203 and the squeezing bag 201 can provide a gentle and lasting expansion force for the cervix, which helps to promote the maturity and expansion of the cervix. This is very useful for pregnant women who need induced labor or planned delivery but have immature cervical conditions. The airbag 203 and the squeezing bag 201 can gradually expand the soft birth canal, making the delivery process easier and thus reducing the pain of the mother. The airbag midwifery technique can help the fetus pass through the birth canal faster by expanding the soft birth canal, thereby shortening the delivery process.

[0038] Specifically, Figure 1 , Figure 5 and Figure 7As shown, the interior and the front bottom of the plug-in tube 1 are jointly provided with a drainage negative pressure component 4, the drainage negative pressure component 4 includes a negative pressure drainage groove 401 opened in the plug-in tube 1, the negative pressure drainage groove 401 is connected to the extrusion bag 201 through the pressure relief valve tube 205, the drainage negative pressure component 4 also includes a drainage tube 402 fixed at the front end of the bottom of the plug-in tube 1, a control valve 403 is fixedly installed in the middle position of the drainage tube 402, and the bottom end of the drainage tube 402 is fixedly connected to a vacuum negative pressure bag 404, and the negative pressure drainage groove 401 is interconnected with the vacuum negative pressure bag 404 through the drainage tube 402; an endoscope 7 is fixedly installed on the upper part of the inner rear end of the plug-in tube 1, and a membrane rupture component 6 is arranged at the inner rear end of the plug-in tube 1. The membrane rupture component 6 includes a baffle plate 607 fixed at the inner rear end of the plug-in tube 1, and a guide membrane hole 608 is opened inside the baffle plate 607, and the number of the guide membrane holes 608 is set to be multiple. A knife groove 609 is opened on the rear end surface of the baffle plate 607, and a membrane rupture blade 602 is movably installed inside the knife groove 609.

[0039] By adopting the above technical solution, when in use, the vacuum negative pressure bag 404 is connected to the drainage tube 402, and the control valve 403 is opened, so that the negative pressure drainage groove 401 can have sufficient negative pressure through the vacuum negative pressure bag 404. Since the top bucket 3 and the expansion bag 203 are in contact with the outer wall of the amniotic membrane, the outer wall of the amniotic membrane can be further sucked and pulled under the action of the negative pressure inside the negative pressure drainage groove 401, so that the outer wall of the amniotic membrane can protrude into the negative pressure drainage groove 401 through the guide membrane hole 608 of the baffle plate 607. In the flow channel 401, the negative pressure generated by the vacuum negative pressure bag 404 can quickly act on the outer wall of the amniotic membrane, and through the suction and pulling effect, the outer wall of the amniotic membrane can be more easily protruded into the negative pressure drainage channel 401. This process accelerates the process of rupturing the membrane and reduces the time and difficulty of the doctor's manual operation; by adjusting the control valve 403, the doctor can accurately control the negative pressure in the negative pressure drainage channel 401. This controllability enables the doctor to adjust the negative pressure intensity as needed during the rupture of the membrane, thereby more accurately controlling the rupture of the membrane process; the design of the negative pressure drainage channel 401 and the vacuum negative pressure bag 404 helps to reduce the risk of contamination and infection during the operation. They can quickly absorb pollutants such as blood and exudate in the surgical area to keep the surgical area clean and sterile. At the same time, the body fluids collected by the vacuum negative pressure bag 404 can facilitate medical staff to observe the discharge and properties of amniotic fluid and facilitate inspection; the baffle 607 can block the fetus inside the amniotic membrane, so that the soft outer wall of the amniotic membrane enters the guide membrane hole 608, and then during the rupture of the membrane When the negative pressure inside the negative pressure drainage groove 401 is too large, the pressure relief valve tube 205 can open itself, so that the gas inside the squeezing bag 201 can be introduced into the negative pressure drainage groove 401, so as to ensure the stability of the negative pressure inside the negative pressure drainage groove 401, and then ensure the negative pressure balance effect of the device when in use, and avoid the negative pressure change that affects the delivery of pregnant women.

[0040] Specifically, Figures 5 to 9As shown, a membrane-breaking auxiliary control component 5 is arranged in front of the membrane-breaking component 6, and the membrane-breaking auxiliary control component 5 includes a positioning ring frame 502 fixedly installed in the inner wall of the plug-in tube 1, a first plug hole 505 is provided in the middle position of the positioning ring frame 502, and an auxiliary control rod 501 is inserted into the first plug hole 505; a mounting groove 503 is provided on the rear end surface of the positioning ring frame 502, and a lever 504 is movably installed inside the mounting groove 503, and the structure of the lever 504 is an L-shaped structure, and the lever 504 is fixedly connected to the outer wall of the auxiliary control rod 501; a positioning guide ring 611 is slidably installed at the edge of the rear end surface of the positioning ring frame 502 A film-breaking knife seat 601 is fixedly installed on the rear end face of the positioning guide ring 611, and a second jack 610 matching the auxiliary control rod 501 is opened in the middle position of the film-breaking knife seat 601, and a film-breaking guide groove 603 is opened inside the film-breaking knife seat 601; a spring 604 and a top bag 605 are fixedly installed inside the film-breaking guide groove 603, and the number of springs 604 is set to three, and the top bag 605 is located between adjacent springs 604, and an air guide tube 606 that runs through the inside of the plug-in tube 1 is fixedly installed inside the film-breaking knife seat 601, and the top bag 605 is connected with the extrusion bag 201 through the air guide tube 606.

[0041] By adopting the above technical solution, when in use, the endoscope 7 can be used to observe the internal conditions of the insertion tube 1. When the outer wall of the amniotic membrane is relatively thin, the gas inside the squeezing bag 201 will enter the top bag 605 through the airway 606. When the top bag 605 is filled with gas, the top bag 605 itself expands, thereby overcoming the resistance of the spring 604 to push the membrane-breaking blade 602 in the membrane-breaking guide groove 603 to move outward, so that the membrane-breaking blade 602 can be pushed to the outer wall of the amniotic membrane through the guide membrane hole 608 of the baffle plate 607. Part of the wall membrane in the negative pressure drainage groove 401 is cut, and the squeezing bag 201 is squeezed back and forth under the action of the contraction and expansion of the pregnant woman's lower body, and the contraction of the spring 604 can achieve the effect of cyclic cutting of the amniotic membrane, so as to achieve the purpose of rupturing the membrane. At the same time, this method helps to ensure the thoroughness of rupturing the membrane, while reducing the force of a single cut, reducing the impact on the pregnant woman and the fetus; traditional artificial rupture of membranes may increase the risk of umbilical cord prolapse, and the device can reduce the occurrence of such risk by accurately cutting the outer wall of the amniotic membrane.

[0042] When the outer wall of the amniotic membrane is relatively thick, the auxiliary control rod 501 can be pushed. The auxiliary control rod 501 is squeezed and will perform telescopic movement between the first socket 505 of the positioning ring frame 502 and the second socket 610 of the membrane breaking knife seat 601. When the auxiliary control rod 501 is extended, it can squeeze the membrane breaking blade 602 in the membrane breaking knife seat 601 to further extend, and the top of the auxiliary control rod 501 abuts against the membrane breaking blade 602, so that the outer wall of the amniotic membrane can be better cut. At the same time, when the cutting effect is not good, the auxiliary control rod 501 can be further squeezed, and the lever 504 on the auxiliary control rod 501 extends from the inside of the assembly groove 503. At this time, the operator rotates the auxiliary control rod 501, and the auxiliary control rod 501 can drive the lever 504 of the L-shaped structure to rotate together. When the lever 504 of the L-shaped structure rotates, it will squeeze the membrane breaking knife seat 601 on one side, which can push the membrane breaking knife seat 601 to rotate together, thereby driving the membrane breaking knife. The membrane-breaking blade 602 on the seat 601 rotates to achieve rotational cutting of the part of the wall membrane of the outer wall of the amniotic membrane that protrudes into the negative pressure drainage groove 401 through the guide membrane hole 608 of the baffle plate 607, thereby further improving the membrane-breaking effect; it should be noted that the membrane-breaking blade 602 can be a special structure, such as a cross-shaped structure or a Feng-shaped structure. When the membrane-breaking blade 602 is rotating, the membrane-breaking blade 602 can achieve cross-cutting of the outer wall of the amniotic membrane. The rotation angle of the membrane-breaking blade 602 is 0-45°. When the membrane-breaking blade 602 rotates forward and backward, the length of the airway 606 can adapt to the rotational movement range of the membrane-breaking blade seat 601, thereby ensuring stable operation of the rotational cutting. After the membrane-breaking is completed, the membrane-breaking blade 602 on the membrane-breaking blade seat 601 can be driven by rotation to rotate to the position of the knife groove 609, so that the membrane-breaking blade 602 is stuck in the knife groove 609 and collected.

[0043] Working principle: When the device is in use, the membrane rupture operation is usually performed during the interval between uterine contractions to reduce the impact on the fetus. The plug-in tube 1 and the top bucket 3 are inserted into the lower body of the pregnant woman. When in use, the device requires an external power supply and an air pump. The external power supply can provide electrical energy for the electric heating wire 206, and the external air pump can provide gas for the air supply of the squeezing bag 201. Before insertion, the electric heating wire 206 needs to be energized. The electric heating wire 206 can be used to heat the plug-in tube 1 itself and the air pumped into the squeezing bag 201 for pretreatment. When air is pumped into the squeezing bag 201, the gas will guide the air into the expansion bag 203 through the connecting air tube 202. When the expansion bag 20 When there is gas in the expansion bag 203, the expansion bag 203 itself will expand, so that the expansion bag 203 can be extended from the limiting bag groove 204 of the top bucket 3. It should be noted that when the top bucket 3 is extended into the lower body, it needs to be in contact with the amniotic membrane in the lower body of the pregnant woman, so that when the expansion bag 203 is extended and expanded, it can be in contact with the outer wall of the amniotic membrane. Therefore, under the cooperation of the extension of the top bucket 3 and the expansion of the expansion bag 203, it can ensure that the amniotic membrane is in contact with each other and squeeze the amniotic membrane. At the same time, under the squeezing effect of the expansion bag 203, the soft amniotic membrane can be squeezed into the funnel-shaped top bucket 3, thereby providing squeezing assistance for further membrane rupture and negative pressure drainage.

[0044] The vacuum negative pressure bag 404 is connected to the drainage tube 402, and the control valve 403 is opened, so that the negative pressure drainage groove 401 can have sufficient negative pressure through the vacuum negative pressure bag 404. Since the top bucket 3 and the expansion bag 203 are in contact with the outer wall of the amniotic membrane, the outer wall of the amniotic membrane can be further sucked and pulled under the action of the negative pressure inside the negative pressure drainage groove 401, so that the outer wall of the amniotic membrane can protrude into the negative pressure drainage groove 401 through the guide membrane hole 608 of the baffle plate 607. The baffle plate 607 can block the fetus inside the amniotic membrane, so that the soft outer wall of the amniotic membrane enters the guide membrane hole 608, and thus when the membrane is ruptured, the fetus inside the amniotic membrane will not be damaged. At the same time, the membrane rupturing blade 602 is located inside the plug-in tube 1. When the negative pressure inside the negative pressure drainage groove 401 is too large, the pressure relief valve tube 205 itself can be opened, so that the negative pressure inside the squeezing bag 201 can be The gas from the outside is introduced into the negative pressure drainage groove 401 to ensure the stability of the negative pressure inside the negative pressure drainage groove 401. The endoscope 7 is arranged to observe the situation inside the plug-in tube 1. When the outer wall of the amniotic membrane is relatively thin, the gas inside the squeezing bag 201 will enter the top bag 605 through the airway 606. When the top bag 605 is filled with gas, the top bag 605 itself expands, thereby overcoming the resistance of the spring 604 to push the membrane-breaking blade 602 in the membrane-breaking guide groove 603 to move outward, so that the membrane-breaking blade 602 can be pushed to cut the part of the wall membrane protruding into the negative pressure drainage groove 401 through the guide membrane hole 608 of the baffle plate 607 on the outer wall of the amniotic membrane. At the same time, under the action of the contraction and expansion of the lower body of the pregnant woman, the squeezing bag 201 will be squeezed back and forth, and with the contraction of the spring 604, the amniotic membrane can be cut cyclically, so that the purpose of membrane rupture can be achieved;

[0045] When the outer wall of the amniotic membrane is relatively thick, the auxiliary control rod 501 can be pushed. The auxiliary control rod 501 is squeezed and will perform telescopic movement between the first socket 505 of the positioning ring frame 502 and the second socket 610 of the membrane breaking knife seat 601. When the auxiliary control rod 501 is extended, it can squeeze the membrane breaking blade 602 in the membrane breaking knife seat 601 to further extend, and the top of the auxiliary control rod 501 abuts against the membrane breaking blade 602, so that the outer wall of the amniotic membrane can be better cut. At the same time, when the cutting effect is not good, the auxiliary control rod 501 can be further squeezed, and the lever 504 on the auxiliary control rod 501 extends from the inside of the assembly groove 503. At this time, the operator rotates the auxiliary control rod 501, and the auxiliary control rod 501 can drive the lever 504 of the L-shaped structure to rotate together. When the lever 504 of the L-shaped structure rotates, it will squeeze the membrane breaking knife seat 601 on one side, which can push the membrane breaking knife seat 601 to rotate together, thereby driving the membrane breaking knife. The membrane-breaking blade 602 on the seat 601 rotates to achieve rotational cutting of the part of the wall membrane of the outer wall of the amniotic membrane that protrudes into the negative pressure drainage groove 401 through the guide membrane hole 608 of the baffle plate 607, thereby further improving the membrane-breaking effect; it should be noted that the membrane-breaking blade 602 can be a special structure, such as a cross-shaped structure or a Feng-shaped structure. When the membrane-breaking blade 602 is rotating, the membrane-breaking blade 602 can achieve cross-cutting of the outer wall of the amniotic membrane. The rotation angle of the membrane-breaking blade 602 is 0-45°. When the membrane-breaking blade 602 rotates forward and backward, the length of the airway 606 can adapt to the rotational movement range of the membrane-breaking blade seat 601, thereby ensuring stable operation of the rotational cutting. After the membrane-breaking is completed, the membrane-breaking blade 602 on the membrane-breaking blade seat 601 can be driven by rotation to rotate to the position of the knife groove 609, so that the membrane-breaking blade 602 is stuck in the knife groove 609 and collected.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for rupturing membranes and assisting childbirth for obstetric care with balanced negative pressure function, comprising a plug-in tube (1), characterized in that: An endoscope (7) is fixedly installed on the upper part of the inner rear end of the plug-in tube (1), and a membrane breaking assembly (6) is provided at the inner rear end of the plug-in tube (1). The membrane breaking assembly (6) includes a baffle plate (607) fixed at the inner rear end of the plug-in tube (1), and a guide membrane hole (608) is provided inside the baffle plate (607). The number of the guide membrane holes (608) is set to be multiple, and a knife groove (609) is provided on the rear end surface of the baffle plate (607), and a membrane breaking blade (602) is movably installed inside the knife groove (609).

2. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 1, characterized in that: A top bucket (3) is fixedly mounted at the rear end of the plug-in tube (1); an expansion extrusion assembly (2) is provided on the inside and outside of the top bucket (3) and the plug-in tube (1); and the expansion extrusion assembly (2) includes a heating wire (206) embedded in the outer wall of the plug-in tube (1).

3. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 2, characterized in that: The expansion and extrusion assembly (2) further comprises an extrusion bag (201) fixedly mounted on the outer end surface of the plug-in tube (1), and the inner end surface of the extrusion bag (201) is fixedly connected to a pressure relief valve tube (205) that runs through the interior of the plug-in tube (1).

4. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 3, characterized in that: A limiting bag groove (204) is provided inside the top bucket (3), an expansion bag (203) is movably installed inside the limiting bag groove (204), a connecting air pipe (202) runs through the inner wall of the top bucket (3), and the squeezing bag (201) is connected to the expansion bag (203) through the connecting air pipe (202).

5. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 4, characterized in that: The interior and the front end bottom of the plug-in tube (1) are jointly provided with a drainage negative pressure component (4), and the drainage negative pressure component (4) comprises a negative pressure drainage groove (401) provided inside the plug-in tube (1), and the negative pressure drainage groove (401) is connected to the extrusion bag (201) through a pressure relief valve tube (205).

6. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 5, characterized in that: The drainage negative pressure assembly (4) further comprises a drainage tube (402) fixed at the front end of the bottom of the plug-in tube (1); a control valve (403) is fixedly installed at the middle position of the drainage tube (402); the bottom end of the drainage tube (402) is fixedly connected to a vacuum negative pressure bag (404); and the negative pressure drainage groove (401) is connected to the vacuum negative pressure bag (404) via the drainage tube (402).

7. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 6, characterized in that: A membrane breaking auxiliary control component (5) is arranged in front of the membrane breaking component (6), and the membrane breaking auxiliary control component (5) comprises a positioning ring frame (502) fixedly installed in the inner wall of the plug-in tube (1), and a first plug hole (505) is opened in the middle position of the positioning ring frame (502), and an auxiliary control rod (501) is inserted into the interior of the first plug hole (505).

8. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 7, characterized in that: The rear end surface of the positioning ring frame (502) is provided with an assembly groove (503), and a lever (504) is movably installed inside the assembly groove (503). The lever (504) is an L-shaped structure, and the lever (504) is fixedly connected to the outer wall of the auxiliary control rod (501).

9. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 8, characterized in that: A positioning guide ring (611) is slidably installed at the edge of the rear end surface of the positioning ring frame (502), and a film-breaking knife seat (601) is fixedly installed on the rear end surface of the positioning guide ring (611). A second plug hole (610) matching the auxiliary control rod (501) is provided in the middle position of the film-breaking knife seat (601), and a film-breaking guide groove (603) is provided inside the film-breaking knife seat (601).

10. The obstetric nursing membrane rupture and delivery device with balanced negative pressure function according to claim 9, characterized in that: A spring (604) and a top bag (605) are fixedly installed inside the film-breaking guide groove (603), and the number of the springs (604) is set to three. The top bag (605) is located between adjacent springs (604). An air guide tube (606) that runs through the inside of the plug-in tube (1) is fixedly installed inside the film-breaking knife seat (601), and the top bag (605) is connected to the extrusion bag (201) through the air guide tube (606).

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