A fetal head assisted up-lifting device for caesarean section surgery

Abstract

This invention discloses a fetal head assist device for cesarean section surgery, belonging to the field of medical devices. It includes a pusher cylinder, with multiple guide heads fixed to the upper inner side of the pusher cylinder. An adjusting rod is provided on the outer side of each guide head, and two guide grooves are formed on the lower outer side of the adjusting rod. A guide post is fixed to the outer side of each guide head, located inside the guide grooves. A rotating block is rotatably mounted on the inner bottom of the adjusting rod via a rotating shaft. A lifting block is fixed to the bottom of the multiple rotating blocks, and the lifting block is slidably mounted with the pusher cylinder. A fixing ring is fixed to the inner side of the pusher cylinder, below the lifting block. Multiple vertical rods are fixed to the bottom of the lifting block. The device can switch between overall folding and opening. When folded, it is compact and can be smoothly inserted into the vagina. The insertion process is convenient, reducing friction and irritation to the birth canal and improving user comfort.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a fetal head assist device for cesarean section. Background Technology

[0002] In clinical obstetrics, when a woman experiences abnormal labor or fetal distress during vaginal delivery, she needs to be urgently converted to a cesarean section. At this time, the fetal head is often already deep in the pelvis, making it very easy to encounter difficulties in retrieving the fetal head during the operation. This is a common challenge in the conversion from vaginal delivery to cesarean section.

[0003] Currently, the most common clinical approach is to manually push the fetal head up through the vagina. However, this method is restrictive in terms of posture and difficulty in applying force. It is also difficult for a single person to maintain stable force, which not only increases the difficulty for midwives but also increases the risk of uneven pushing force and fetal head deviation. Manual manipulation has a small contact area and concentrated local pressure, which can easily compress the fetal head, increasing the risk of neonatal asphyxia and head injury. It may also cause tearing of the lower uterine segment and birth canal in the mother, leading to postoperative complications. Existing conventional fetal head assist devices have simple structures, mostly providing only rigid support and failing to adapt to the shape of the fetal head. They are prone to scraping the birth canal during insertion, resulting in insufficient safety. Furthermore, the opening, closing, and fixing operations are cumbersome, and the shape adjustment is not flexible enough to suit the different physiological conditions of mothers, leading to poor overall practicality. Therefore, there is an urgent need to design a fetal head assist device that is easy to operate, provides a good fit, and is safe and reliable to meet the needs of clinical surgery. Summary of the Invention

[0004] Purpose of the Invention: The purpose of this invention is to provide a fetal head-assisting device for cesarean section surgery, which solves the problems of limited posture, inconvenient force application, and uneven force distribution in existing manual head-assisting operations, reduces the difficulty of assisted delivery, and improves the stability of force application. Another purpose of this invention is to optimize the overall structure of the instrument so that the device can adaptively conform to the fetal head, reduce pressure and damage to the fetus and the mother's birth canal, avoid surgical risks such as neonatal asphyxia and birth canal lacerations, and at the same time simplify the operation process, improve the device's adaptability and clinical applicability.

[0005] Technical solution: A fetal head assist device for cesarean section includes a pusher cylinder, multiple guide heads are fixed on the upper inner side of the pusher cylinder, an adjusting rod is provided on the outer side of the guide head, two guide grooves are opened on the lower outer side of the adjusting rod, a guide column is fixed on the outer side of the guide head and inside the guide groove, a rotating block is rotatably mounted on the inner side of the bottom end of the adjusting rod via a rotating shaft, and a lifting block is fixed at the bottom of multiple rotating blocks, the lifting block being slidably mounted with the pusher cylinder; A fixing ring is fixed inside the booster cylinder and below the lifting block. Multiple vertical rods are fixed at the bottom of the lifting block. The bottom end of each vertical rod extends through to the bottom of the fixing ring and is slidably installed with the fixing ring. A spring is fixed together on the opposite side of the fixing ring and the lifting block and outside the multiple vertical rods. A conical airbag is provided on the inner side of multiple adjusting rods.

[0006] Furthermore, the top of the booster cylinder and both sides of the plurality of guide heads are provided with notches, which are adapted to the adjusting rod.

[0007] Furthermore, a pressure box is fixed to the lower surface of the lifting block, and an air exchange pipe is fixedly connected between the pressure box and the conical airbag cushion.

[0008] Furthermore, a piston block is slidably installed inside the air pressure box, and a pull rope is fixed to the lower surface of the piston block, with the bottom end of the pull rope extending to the bottom of the booster cylinder.

[0009] Furthermore, a second spring is fixed between the piston block and the air pressure box.

[0010] Furthermore, the outer wall of the conical airbag cushion, located outside the plurality of adjusting rods, is integrally formed with a connecting sleeve.

[0011] Beneficial effects: The device can be switched between being fully folded and open. When folded, it is compact in size and can be smoothly inserted into the vagina. The insertion process is convenient and can reduce friction and stimulation to the birth canal of the mother, thus improving the comfort of use. The cone-shaped airbag cushion fits the fetal head, and after inflation, it can fit closely to the surface of the fetal head. The large contact area and even force distribution can not only stably support the fetal head, but also avoid direct compression of the fetal head by hard parts, effectively protecting the fetus and reducing the risk of fetal injury and suffocation. The mechanism relies on springs and guide structures to open and close the rods. The operation logic is simple, and the form can be changed by simply pulling the rope. It can be operated independently by a single person, which greatly reduces the difficulty of surgical cooperation and improves the efficiency of midwifery. The overall support structure is highly stable, and the force is evenly distributed when pushing the fetal head upward, making it easier to exert force. It can smoothly push the fetal head, which is deeply embedded in the pelvis, to the appropriate position in the uterine cavity, effectively solving the problem of difficulty in removing the fetal head when converting from vaginal delivery to cesarean section, while reducing surgical complications such as lower uterine segment laceration. The airbag cushion, combined with an integrated connecting sleeve structure, is firmly fixed and is not prone to displacement or falling off during use. The overall structure is durable and reliable, and the opening, closing, inflation, and deflation actions are smooth and continuous, making it suitable for the practical needs of clinical cesarean section surgery. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after removing the cone-shaped airbag cushion; Figure 3 This is a schematic diagram of the structure of the booster cylinder of the present invention; Figure 4 This is a schematic diagram of the structure of the present invention after removing the conical airbag cushion and the booster cylinder; Figure 5 This is a cross-sectional structural schematic diagram of the air pressure box of the present invention; Figure 6 This is a schematic diagram of the cone-shaped airbag cushion of the present invention.

[0013] In the diagram: 1. Booster cylinder; 2. Guide head; 3. Adjusting rod; 4. Guide groove; 5. Guide column; 6. Rotating block; 7. Lifting block; 8. Fixing ring; 9. Vertical rod; 10. Spring 1; 11. Conical airbag cushion; 12. Notch; 13. Air pressure box; 14. Air exchange pipe; 15. Piston block; 16. Pull rope; 17. Spring 2; 18. Connecting sleeve. Detailed Implementation

[0014] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example like Figures 1-6 As shown, a fetal head assist device for cesarean section is provided, including a pusher cylinder 1. Multiple guide heads 2 are fixed on the upper inner side of the pusher cylinder 1. An adjusting rod 3 is provided on the outer side of the guide head 2. Two guide grooves 4 are opened on the lower outer side of the adjusting rod 3. A guide column 5 is fixed on the outer side of the guide head 2 and located on the inner side of the guide groove 4. A rotating block 6 is rotatably installed on the inner side of the bottom end of the adjusting rod 3 through a rotating shaft. A lifting block 7 is fixed together at the bottom of the multiple rotating blocks 6. The lifting block 7 is slidably installed with the pusher cylinder 1. A fixing ring 8 is fixed inside the booster cylinder 1 and below the lifting block 7. Multiple vertical rods 9 are fixed at the bottom of the lifting block 7. The bottom end of the vertical rod 9 passes through the bottom of the fixing ring 8 and is slidably installed with the fixing ring 8. A spring 10 is fixed together on the opposite side of the fixing ring 8 and the lifting block 7 and outside the multiple vertical rods 9. A conical airbag 11 is provided on the inner side of multiple adjusting rods 3; The top of the booster cylinder 1 and both sides of the multiple guide heads 2 are provided with notches 12, which are adapted to the adjusting rod 3; A pressure box 13 is fixed on the lower surface of the lifting block 7, and an air exchange pipe 14 is fixedly connected between the pressure box 13 and the conical airbag cushion 11. A piston block 15 is slidably installed inside the air pressure box 13. A pull rope 16 is fixed to the lower surface of the piston block 15, and the bottom end of the pull rope 16 extends to the bottom of the booster cylinder 1. A spring 17 is fixed between the piston block 15 and the air pressure box 13. The outer wall of the cone-shaped airbag cushion 11 and the outer side of the multiple adjusting rods 3 are integrally formed with connecting sleeves 18; In the initial state, spring 10 and spring 2 17 are in their naturally extended state, lifting block 7 is in the high position, adjusting rod 3 is in the retracted state, and conical airbag 11 is in the deflated state. Pulling down the pull rope 16 moves the piston block 15 down and compresses spring 2 17, reducing the air pressure inside the air pressure box 13. The air is then extracted from the conical airbag 11 through the air exchange pipe 14, causing the conical airbag 11 to fully contract. As the pull rope 16 is pulled down, the pulling force is transmitted to the lifting block 7 through the piston block 15 and the air pressure box 13. The lifting block 7 slides down along the push cylinder 1 and compresses the spring 10, causing the vertical rod 9 to slide down along the fixed ring 8. The downward movement of the lifting block 7 pulls the adjusting rod 3 through the rotating block 6. The guide column 5 slides along the guide groove 4 on the adjusting rod 3, causing the multiple adjusting rods 3 to retract inward, reducing the outer diameter of the overall device, making it easier to insert into the vagina of the mother. Insert the entire retracted device into the vagina, aligning the conical airbag 11 with the fetal head, and slowly release the pull rope 16. Spring 2 17 rebounds, pushing the piston block 15 upward, increasing the air pressure inside the air pressure box 13. Gas is then introduced into the conical airbag 11 through the air exchange pipe 14, causing the conical airbag 11 to gradually expand and bulge. The outer connecting sleeve 18 adheres to the outer wall of the adjusting rod 3. Simultaneously, spring 10 rebounds, lifting the lifting block 7. The lifting block 7 drives the rotating block 6 upward, which, in conjunction with the guiding action of the guide head 2, guide column 5, and guide groove 4, pushes the adjusting rod 3 outward through the top notch 12 of the booster cylinder 1, allowing the expanded conical airbag 11 to tightly adhere to the surface of the fetal head. Hold the lower part of the pusher cylinder 1 with both hands and apply upward force. With the help of the open adjustment rod 3 and the conical airbag cushion 11, lift and push the fetal head that is deep in the pelvis, and push the fetal head to the appropriate position in the uterine cavity to complete the assisted head pushing operation. After the operation is completed, pull the rope 16 down again to repeat the air extraction and retraction steps, so that the cone-shaped airbag 11 contracts and the adjusting rod 3 retracts. Then, slowly remove the entire device from the vagina.

[0016] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A fetal head assisted up-lifting device for caesarean section surgery, comprising an assisting cylinder (1), characterized in that: Multiple guide heads (2) are fixed on the upper inner side of the booster cylinder (1). An adjusting rod (3) is provided on the outer side of the guide head (2). Two guide grooves (4) are opened on the lower outer side of the adjusting rod (3). A guide column (5) is fixed on the outer side of the guide head (2) and located on the inner side of the guide groove (4). A rotating block (6) is rotatably installed on the inner side of the bottom end of the adjusting rod (3) through a rotating shaft. A lifting block (7) is fixed together at the bottom of multiple rotating blocks (6). The lifting block (7) is slidably installed with the booster cylinder (1). A fixing ring (8) is fixed inside the booster cylinder (1) and below the lifting block (7). Multiple vertical rods (9) are fixed at the bottom of the lifting block (7). The bottom end of the vertical rod (9) extends through to the bottom of the fixing ring (8) and is slidably installed with the fixing ring (8). A spring (10) is fixed together on the opposite side of the fixing ring (8) and the lifting block (7) and outside the multiple vertical rods (9). A conical airbag (11) is provided on the inner side of multiple adjusting rods (3).

2. The fetal head assist device for cesarean section surgery according to claim 1, characterized in that: The top of the booster cylinder (1) and both sides of the multiple guide heads (2) are provided with notches (12), which are adapted to the adjusting rod (3).

3. The fetal head assist device for cesarean section surgery according to claim 1, characterized in that: A pressure box (13) is fixed on the lower surface of the lifting block (7), and an air exchange pipe (14) is fixedly connected between the pressure box (13) and the conical airbag cushion (11).

4. The fetal head assist device for cesarean section surgery according to claim 1, characterized in that: A piston block (15) is slidably installed inside the air pressure box (13). A pull rope (16) is fixed on the lower surface of the piston block (15), and the bottom end of the pull rope (16) extends to the bottom of the booster cylinder (1).

5. A fetal head assist device for cesarean section surgery according to claim 1, characterized in that: A spring (17) is fixed between the piston block (15) and the air pressure box (13).

6. A fetal head assist device for cesarean section surgery according to claim 1, characterized in that: The outer wall of the conical airbag (11) and the outer side of the plurality of adjusting rods (3) are integrally formed with connecting sleeves (18).

Images