Membrane puncturing device for obstetrics and gynecology department

Abstract

The utility model relates to the technical field of medical instruments, in particular to a fetal membrane puncturing device for gynaecology and obstetrics, which comprises a connecting handle, the front end of the connecting handle is rotatably connected with a rotating handle, a pushing rod is arranged in the connecting handle in a sliding and penetrating mode, one end of the pushing rod extends into the rotating handle, and an external thread is arranged on the surface of the end portion of the pushing rod. And an internal thread matched with the rotating handle is arranged in the rotating handle. By adding a thread matching mechanism of the rotating handle and the pushing rod, accurate control over the feeding amount and the puncturing depth of the membrane rupturing needle is achieved, the risk caused by too deep puncturing to a fetus is reduced, the stability and accuracy of operation are remarkably improved, the uncertainty caused by manual operation is reduced, and therefore the safety of the membrane rupturing process is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fetal membrane puncture device for obstetrics and gynecology. Background Technology

[0002] In obstetric and gynecological clinical practice, artificial rupture of membranes is a common and important medical procedure, mainly used to promote the labor process or to deal with specific obstetric conditions. Artificial rupture of membranes is usually performed when spontaneous rupture of membranes has not occurred and labor is progressing slowly, in order to accelerate the development of labor. Its purpose is to stimulate the secretion of prostaglandins by releasing amniotic fluid, thereby increasing the frequency and intensity of uterine contractions, which helps to initiate or speed up the labor process.

[0003] Currently, traditional membrane rupture tools are mainly simple needle-like instruments. Although these tools can basically meet the needs of membrane rupture, there are still some shortcomings in practical applications. Traditional membrane rupture needles are usually used directly by hand and lack a precise depth control mechanism, which may lead to excessive insertion and increase the risk of damage to the fetus. In addition, manual operation is easily affected by the doctor's hand tremors, thus affecting the stability and accuracy of the operation.

[0004] Therefore, there is an urgent need for an obstetric uterine rupture device that can provide precise control over the insertion depth and greater operational stability. Utility Model Content

[0005] In order to overcome the shortcomings of existing traditional membrane rupture tools, which are used directly by hand, lack a precise depth control mechanism, are prone to excessive penetration, increase the risk of fetal injury, and have poor operational stability, this utility model provides a gynecological membrane rupture device that can provide precise penetration depth control and higher operational stability.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a fetal membrane rupture device for obstetrics and gynecology, comprising a connecting handle, a rotating handle rotatably connected to the front end of the connecting handle, a push rod slidably passing through the interior of the connecting handle, one end of the push rod extending into the interior of the rotating handle, and having an external thread on its end surface, while the interior of the rotating handle has a matching internal thread, and the other end of the push rod has a slot in which a locking rod is engaged, with a membrane rupture needle mounted on the locking rod.

[0007] Furthermore, the tip of the membrane-breaking needle adopts an arc-shaped design.

[0008] Furthermore, a sleeve plate is sleeved at the rear end of the connecting handle, and a U-shaped retaining plate is snapped onto the top of the sleeve plate, with liquid collection boxes provided at both ends of the U-shaped retaining plate.

[0009] Furthermore, the liquid collection box is made of a transparent material.

[0010] Furthermore, a scale is provided on the outside of the liquid collection box.

[0011] Furthermore, a rubber ball is provided on the inner wall of the slot, and a card hole adapted to the rubber ball is provided on the surface of the card rod.

[0012] Furthermore, hand handles are provided on both sides of the rotating handle.

[0013] Furthermore, the top and bottom surfaces of the front end of the connecting handle are provided with anti-slip blocks, which are made of rubber or silicone.

[0014] Compared with the prior art, the present invention has the following technical effects: 1. By adding a threaded engagement mechanism between the rotating handle and the push rod, the present product achieves precise control over the feed amount and insertion depth of the membrane rupture needle, reduces the risk to the fetus caused by excessive insertion, and significantly improves the stability and accuracy of operation, reduces the uncertainty caused by manual operation, thereby improving the safety of the membrane rupture process.

[0015] 2. By setting up a transparent amniotic fluid collection box equipped with a scale, a convenient means of monitoring amniotic fluid is provided for medical staff, which helps to better protect the health of mothers and babies. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the obstetric and gynecological amniotic membrane puncture device.

[0017] Figure 2 This is a three-dimensional sectional view of the obstetric and gynecological amniotic membrane puncture device.

[0018] Figure 3 This is an exploded view of the connecting handle and rotating handle of the obstetric and gynecological amniotic membrane puncturing device.

[0019] Figure 4 This is an exploded view of the push rod and membrane rupture needle in the obstetric and gynecological membrane rupture device.

[0020] Figure 5 This is a three-dimensional sectional view of the sleeve, U-shaped retaining plate, and fluid collection box in the obstetric and gynecological amniotic membrane puncture device.

[0021] The markings in the diagram are as follows: 1: connecting handle, 2: rotating handle, 3: push rod, 4: external thread, 401: internal thread, 5: locking rod, 6: membrane breaking needle, 7: sleeve plate, 8: U-shaped locking plate, 9: liquid collection box, 10: scale, 11: rubber ball, 12: hand handle, 13: anti-slip block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-4 A fetal membrane puncture device for obstetrics and gynecology includes a connecting handle 1. Anti-slip blocks 13 are provided on both the top and bottom surfaces of the front end of the connecting handle 1. The anti-slip blocks 13 are made of rubber or silicone. The soft material and high coefficient of friction of the anti-slip blocks 13 effectively prevent the device from slipping due to hand sweat or other reasons while holding the connecting handle 1, further improving the safety and reliability of the operation. A rotating handle 2 is rotatably connected to the front end of the connecting handle 1, allowing the rotating handle 2 to rotate freely relative to the connecting handle 1. Handholds 12 are provided on both sides of the rotating handle 2. The design of the handholds 12 conforms to ergonomic principles, making it easier for medical personnel to hold the rotating handle 2 more securely during operation. A push rod 3 is slidably inserted through the connecting handle 1. One end of the push rod 3 extends into the rotating handle 2, and its end surface is provided with external threads 4. The rotating handle 2 has internal threads... The matching internal thread 401, through its engagement with the external thread 4, converts the rotational motion into the linear motion of the push rod 3. The other end of the push rod 3 has a slot in which a locking rod 5 is engaged. The locking rod 5 is equipped with a membrane-rupturing needle 6. The tip of the membrane-rupturing needle 6 features an arc-shaped design, effectively piercing the amniotic sac while reducing the risk of fetal injury during rupture. Furthermore, the membrane-rupturing needle 6 is made of high-strength medical-grade stainless steel or biocompatible materials to ensure its safety and durability during use. The engagement of the locking rod 5 with the slot allows for quick disassembly and replacement of the membrane-rupturing needle 6, ensuring that it is a disposable design for each use, thus effectively avoiding the risk of cross-infection. A rubber ball 11 is provided on the inner wall of the slot, and a locking hole adapted to the rubber ball 11 is provided on the surface of the locking rod 5. The tight fit between the rubber ball 11 and the locking hole enhances the connection strength between the locking rod 5 and the slot.

[0024] This product is suitable for use when a woman enters labor and requires artificial rupture of membranes. The specific operating procedure is as follows: First, the medical staff holds the connecting handle 1 with one hand and rotates the rotating handle 2 with the other. As the rotating handle 2 rotates, the internal thread 401 inside the rotating handle 2 interacts with the external thread 4 at the end of the push rod 3, converting the rotational motion into the linear motion of the push rod 3. The linear motion of the push rod 3 drives the rupture needle 6 forward step by step. The medical staff can precisely control the insertion depth of the rupture needle 6 by controlling the number of rotations of the rotating handle 2, thereby avoiding the risk of scratching the fetal head due to excessive insertion. The push rod 3 enters the woman's body through the vagina and cervix. During the advancement process, the arc-shaped tip of the rupture needle 6 minimizes damage to surrounding tissues. When the rupture needle 6 accurately reaches the thinnest part of the amniotic sac, applying light pressure will rupture the amniotic sac, releasing amniotic fluid and completing the artificial rupture of membranes operation.

[0025] Example 2: Based on Example 1, please refer to... Figure 5 The connecting handle 1 is sleeved with a sleeve plate 7 at its rear end. A U-shaped clamping plate 8 is snapped onto the top of the sleeve plate 7. Both ends of the U-shaped clamping plate 8 are provided with a collection box 9 for collecting amniotic fluid. The collection box 9 is made of transparent material to facilitate observation of the color and clarity of the amniotic fluid. A scale 10 is provided on the outside of the collection box 9 so that medical staff can easily measure the flow rate of amniotic fluid and assess whether the outflow is normal.

[0026] After the amniotic rupture device is used to complete the membrane rupture operation, amniotic fluid will flow out through the vagina. Due to the design of the collection box 9, the outflowing amniotic fluid can be effectively collected. Through the transparent design of the collection box 9 and the scale 10 on it, medical staff can directly observe the color, clarity and flow of the amniotic fluid without additional tools, so as to judge whether there is any abnormality in time. After use, medical staff can remove the collection box 9 by simply removing the U-shaped card plate 8, so as to thoroughly disinfect and clean it to ensure hygiene and safety for the next use.

[0027] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A fetal membrane puncture device for obstetrics and gynecology, comprising a connecting handle (1), wherein a rotating handle (2) is rotatably connected to the front end of the connecting handle (1), characterized in that, The connecting handle (1) has a sliding push rod (3) inside. One end of the push rod (3) extends into the rotating handle (2) and its end surface is provided with an external thread (4). The rotating handle (2) is provided with a matching internal thread (401). The other end of the push rod (3) is provided with a slot, in which a locking rod (5) is engaged. The locking rod (5) is provided with a membrane-breaking needle (6).

2. The obstetric and gynecological amniotic rupture device according to claim 1, characterized in that, The tip of the membrane-breaking needle (6) is designed with an arc shape.

3. The obstetric and gynecological puncture device according to claim 2, characterized in that, The connecting handle (1) is sleeved with a sleeve plate (7) at its rear end. A U-shaped clamping plate (8) is snapped onto the top of the sleeve plate (7). Liquid collection boxes (9) are provided at both ends of the U-shaped clamping plate (8).

4. The obstetric and gynecological puncture device according to claim 3, characterized in that, The liquid collection box (9) is made of transparent material.

5. The obstetric and gynecological puncture device according to claim 4, characterized in that, A scale (10) is provided on the outside of the liquid collection box (9).

6. The obstetric and gynecological puncture device according to claim 5, characterized in that, The inner wall of the slot is provided with a rubber ball (11), and the surface of the lever (5) is provided with a card hole that matches the rubber ball (11).

7. The obstetric and gynecological puncture device according to claim 6, characterized in that, Hand handles (12) are provided on both sides of the rotating handle (2).

8. The obstetric and gynecological puncture device according to claim 7, characterized in that, The top and bottom surfaces of the front end of the connecting handle (1) are provided with anti-slip blocks (13), which are made of rubber or silicone.

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