CN213489194U

CN213489194U - Artificial membrane rupture device for obstetrical department

Info

Publication number: CN213489194U
Application number: CN202020526887.9U
Authority: CN
Inventors: 周倩柔; 徐丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-06-22
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to an obstetrical artificial membrane rupture device, which comprises a handle, two hard blunt heads and a puncture straw, wherein the two hard blunt heads which are symmetrical in a splayed shape are arranged at the front end of the handle, the front end of each hard blunt head is rounded and is bent forwards to the middle, and a gap for exposing a amniotic sac is reserved between the two hard blunt heads; a cavity is arranged in the handle, the puncture straw is arranged on the handle, the front end of the puncture straw extends to the gap, and a slope puncture surface is arranged at the front end of the puncture straw; the inner part of the handle is provided with a cavity, the puncture straw is of a hollow structure, and the rear end of an inner hole of the puncture straw is hermetically connected with the front end of the cavity in the handle; the slope thorn face is provided with a negative pressure suction port, the negative pressure suction port is communicated with an inner hole of the puncture suction pipe, the negative pressure suction port is sealed by a water-soluble material, the inner hole of the puncture suction pipe is communicated with a cavity of the handle, the cavity is vacuumized to form negative pressure, and the handle is provided with a transparent observation window. The utility model discloses the structure is ingenious, reasonable in design, safe and reliable, protection foetus scalp that can be better is not damaged.

Description

Artificial membrane rupture device for obstetrical department

Technical Field

The utility model relates to an auxiliary artificial membrane rupturing device, in particular to an artificial membrane rupturing device for obstetrical department, belonging to the technical field of medical instruments.

Background

Clinically, many puerpera can not rupture the membrane naturally, and doctors are required to assist in artificial rupture of the membrane. The artificial rupture of the membrane means that the artificial intervention of the rupture of the amnion at the uterine orifice discharges amniotic fluid, so that the leakage of the uterus is reduced, the cervix is stimulated, the uterus is contracted, the uterine orifice is expanded, the labor progress is accelerated, and the artificial rupture of the membrane is a common induced labor mode in the natural childbirth process. At present, the appliance widely applied to artificial membrane rupture in obstetrical department is mainly a dental forceps, the academic name of the dental forceps is Ailis, the dental forceps is a metal product, and a forceps head is a dental clip. However, from the clinical use situation, the following three main disadvantages exist: 1. the forceps head is a metal blunt head, and a large amount of secretion exists at the vagina and cervix, so that the condition of sliding forceps can be caused frequently, and the operation is difficult. 2. Under the current condition that amniotic fluid volume of amniotic sac is less, the fetal hair can be clamped by the dental forceps during clamping, scalp injury of a newborn can be caused, and possibility of medical dispute is increased. 3. Needs two hands to operate, and a new person has difficulty in operating the device with the hands and is easy to injure the cervix.

Therefore, there is a need to develop an auxiliary artificial membrane rupturing device which is more convenient and safer to operate.

Disclosure of Invention

The utility model aims to overcome the not enough of existence among the prior art, provide an artificial rupture of membranes ware of obstetrical department, its structure is ingenious, reasonable in design, safe and reliable, protection fetus scalp that can be better is not harmed, the small and exquisite flexibility of product, medical staff easily operates.

According to the utility model provides a technical scheme: obstetrical artificial membrane rupture device, its characterized in that: the amniotic membrane sac comprises a handle, two hard blunt heads and a puncture suction tube, wherein the two hard blunt heads are symmetrical in a splayed shape and are arranged at the front end of the handle; a cavity is formed in the handle, the puncture straw is mounted on the handle, the front end of the puncture straw extends to the gap, and a slope puncture surface for hooking and breaking the amniotic sac is arranged at the front end of the puncture straw; the puncture straw is of a hollow structure, and the rear end of an inner hole of the puncture straw is hermetically connected with the front end of the cavity in the handle; the slope thorn face is provided with a negative pressure suction port, the negative pressure suction port is communicated with an inner hole of the puncture suction pipe, the negative pressure suction port is sealed by a water-soluble material, the inner hole of the puncture suction pipe is communicated with the cavity of the handle, and the cavity is vacuumized to form negative pressure, and the handle is provided with a transparent observation window through which the cavity can be observed from the outside.

As a further improvement of the utility model, the handle front end is equipped with the display window, be equipped with the PH test paper in the display window.

As a further improvement of the utility model, the handle is provided with scales on the surface.

As a further improvement of the utility model, the hard blunt front end is designed to be a wide arc.

As a further improvement, the puncture straw rear end fixed connection handle front end, the hole rear end of puncture straw and the sealed butt joint of the cavity front end of handle, the evacuation joint with the cavity intercommunication is installed to the handle rear end.

As a further improvement, the puncture straw is worn to establish can axial displacement in the cavity, be provided with the sealing washer between the cavity surface of puncture straw surface and handle, the sealing washer also can keep the cavity airtight when making the puncture straw remove in the cavity, installs the locking piece that is used for locking the puncture straw on the handle.

As a further improvement, the locking piece is a set screw, be equipped with spacing long recess on the outer wall of puncture straw rear end, set screw installs on the handle, and set screw the inner inlays in spacing long recess and supports the outer wall of tight puncture straw.

As a further improvement of the utility model, the water-soluble material is polyvinyl alcohol plastic.

As a further improvement of the utility model, the forward bending angle of the hard blunt front end is 40-50 degrees.

As a further improvement of the utility model, the forward bending angle of the hard blunt front end is 45 degrees.

Compared with the prior art, the utility model, have following advantage:

1) the utility model has the advantages of ingenious structure, reasonable design, small and flexible product, and easy operation for medical staff; the hard blunt head front end at the front end of the membrane rupturing device is round and moist, so that the membrane rupturing device is not easy to damage when entering a birth canal, can better protect the scalp of a fetus from being damaged, and is safe and reliable; after the fetal head is pushed upwards, the amniotic sac is exposed at a gap between the two hard blunt heads, and due to the tension of the amniotic sac filled with amniotic fluid, the amniotic sac can be exposed more clearly after the fetal head is pushed upwards, and a doctor can hook the amniotic sac to break the amniotic sac by operating the manual membrane rupture device to slightly slide forwards to complete membrane rupture; the amniotic fluid flows out after the membrane is broken, the water-soluble material at the negative pressure suction port is dissolved after contacting the amniotic fluid, the amniotic fluid can enter the cavities of the puncture suction tube and the handle through the negative pressure suction port, and the color and the property of the amniotic fluid can be conveniently observed through the transparent observation window on the handle.

2) The front end of the handle of the utility model is provided with a display window, and PH test paper is arranged in the display window, so that whether the membrane rupture is successful can be further confirmed by observing the display window during the actual operation; in addition, as the surface of the handle is provided with scales, the doctor can conveniently observe the outflow of the amniotic fluid.

3) The utility model provides a puncture straw can also axial displacement in the handle, when meetting the situation of once failing the rupture of membranes clinically, can finely tune the back again locking with puncture straw forward and fix to guarantee to hook the rupture of membranes of sheep bag smoothly.

Drawings

Fig. 1 is a front view of the structure of embodiment 1 of the present invention.

Fig. 2 is a structural side view of embodiment 1 of the present invention.

Fig. 3 is a sectional view taken along the plane a-a in fig. 1.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Description of reference numerals: 1-handle, 2-hard blunt head, 3-puncture suction tube, 4-gap, 5-water soluble material, 6-vacuum joint, 7-sealing ring, 8-set screw, 11-cavity, 12-transparent observation window, 13-display window, 31-slope puncture surface, 32-negative pressure suction port and 33-limit long groove.

Detailed Description

The invention is further described with reference to the following specific drawings and examples.

Example 1

As shown in fig. 1 to 3, embodiment 1 discloses an obstetrical artificial membrane rupture device, which comprises a handle 1, hard blunt heads 2 and a puncture suction tube 3, wherein two hard blunt heads 2 symmetrical in a shape like a Chinese character 'ba' are arranged at the front end of the handle 1, the front ends of the hard blunt heads 2 are rounded and bent forwards to the middle, and a gap 4 for exposing amniotic sac is reserved between the two hard blunt heads 2; a cavity 11 is formed in the handle 1, the puncture straw 3 is mounted on the handle 1, the front end of the puncture straw 3 extends to the gap 4, and a slope puncture surface 31 for hooking and breaking the amniotic sac is arranged at the front end of the puncture straw 3; a cavity 11 is formed in the handle 1, the puncture straw 3 is of a hollow structure, and the rear end of an inner hole of the puncture straw 3 is hermetically connected with the front end of the cavity 11 in the handle 1; the slope thorn face 31 is provided with a negative pressure suction port 32, the negative pressure suction port 32 is communicated with an inner hole of the puncture suction tube 3, the negative pressure suction port 32 is sealed by a water-meeting soluble material 5, the inner hole of the puncture suction tube 3 is communicated with the cavity 11 of the handle 1 and vacuumized to form negative pressure, and the handle 1 is provided with a transparent observation window 12 through which the cavity 11 can be observed from the outside.

In application, pregnant women take bladder lithotomy position, and disinfect vulva and vagina conventionally. The left index finger and the middle finger are inserted into the vagina under the aseptic operation of a doctor, and enter the uterine orifice to touch the amniotic sac under the guidance of the fingers in the vagina; then the doctor holds the artificial rupture device with the right hand and enters the birth canal during the uterine contraction intermission period (to avoid the occurrence of amniotic fluid embolism). The front end of the hard blunt head 2 at the front end of the membrane rupturing device is round and moist, so that the membrane rupturing device is not easy to damage when entering the birth canal. The doctor pushes up the fetal head through blunt nosed 2 of stereoplasm, and the amniotic sac just exposes in 4 departments in the space between two blunt nosed 2 of stereoplasm, because the amniotic sac that is full of the amniotic fluid has the tension, and after the fetal head pushes up, the amniotic sac can expose more clearly. After pushing the fetal head upwards, the doctor operates the manual membrane rupturing device to slightly slide forwards, and the slope puncture surface 31 at the front end of the puncture suction tube 3 can hook and rupture the amniotic sac to complete membrane rupturing. The amniotic fluid flows out after the membrane is broken, the water-meeting soluble material 5 at the negative pressure suction port 32 is dissolved after contacting the amniotic fluid, and the amniotic fluid can enter the cavities of the puncture suction tube 3 and the handle 1 through the negative pressure suction port 32 due to the negative pressure in the inner hole of the puncture suction tube 3 and the cavity 11 of the handle 1, so that a doctor can conveniently observe the color and the property of the amniotic fluid through the transparent observation window 12 on the handle 1. After the rupture of the membrane, the medical staff should also pay attention to whether the fetal heart is changed or not so as to prevent the umbilical cord prolapse and fetal distress caused by pressure, and record the rupture time; finally, the vulva is disinfected, the perineum pad is well padded, and basic nursing is well done.

As shown in fig. 1, in this embodiment 1, a display window 13 is disposed at the front end of the handle 1, and a PH test paper is disposed in the display window 13. With this arrangement, whether or not the rupture of the membrane has been successful can be further confirmed by observing the display window 13. The PH test paper can measure the pH value, under the normal condition, the pH value of the vagina should be kept between 4.5 and 5.5, the vagina is weak acidic, if amniotic fluid is broken, the pH value can be increased to 7.0 to 7.5, and therefore whether membrane rupture is successful or not can be accurately judged by observing the PH value at the position of the display window 13.

As shown in fig. 1, in the present embodiment 1, a scale is provided on the surface of the handle 1. So set up, the doctor can also conveniently observe the outflow of amniotic fluid.

As shown in fig. 1 to 3, in the present example 1, the front end of the hard blunt tip 2 is formed in a wide circular arc shape, so that a larger contact area is provided when the bead is pushed up, and the local pressure to the bead can be reduced.

As shown in fig. 1 and 2, in this embodiment 1, the rear end of the puncture straw 3 is fixedly connected to the front end of the handle 1, the rear end of the inner hole of the puncture straw 3 is in sealed butt joint with the front end of the cavity 11 of the handle 1, and the rear end of the handle 1 is provided with a vacuum-pumping joint 6 communicated with the cavity 11. So set up, can be earlier sealed the negative pressure suction port 32 with water soluble material 5 during production, reuse evacuation joint 6 take out the air in puncture straw 3 hole and the cavity 11 of handle 1 and form the negative pressure, it is more convenient to produce manufacturing. The vacuum-pumping joint 6 can adopt a common joint with a switch in the prior art, and can also adopt a joint (such as a joint on a vacuum cupping device) with a one-way valve inside. In this embodiment 1, the water-soluble material 5 is preferably polyvinyl alcohol plastic, and other products in the prior art may also be used.

As shown in fig. 1, in this embodiment 1, the angle at which the front end of the hard blunt tip 2 is bent forward to the middle is preferably 40 to 50 °, and is preferably 45 °, so that the fetal head can be effectively pushed up to expose the amniotic sac, and the fetus can be protected.

The utility model discloses in, handle 1 preferred adoption transparent material preparation forms, can observe the colour and the property of amniotic fluid like this more conveniently. The transparent material may be glass or plastic.

Example 2

As shown in fig. 4 and 5, embodiment 2 discloses an obstetrical artificial membrane rupture device, which is different from embodiment 1 in that: the puncture suction pipe 3 penetrates through the cavity 11 and can move axially, a sealing ring 7 is arranged between the outer surface of the puncture suction pipe 3 and the surface of the cavity 11 of the handle 1, the sealing ring 7 can keep the cavity 11 closed when the puncture suction pipe 3 moves in the cavity 11, and a locking piece for locking the puncture suction pipe 3 is arranged on the handle 1. So set up, the position between puncture straw 3 and the blunt head 2 of stereoplasm can finely tune relatively, if meet the situation that once can't succeed rupture of membranes in clinic, can lock the fastening again behind the forward fine setting of puncture straw 3 and fix to guarantee that the slope puncture face 31 of puncture straw 3 front end can hook smoothly and break the amniotic sac.

As shown in fig. 5, in this embodiment 2, the locking member is a set screw 8, a long limiting groove 33 is disposed on an outer wall of the rear end of the puncture straw 3, the set screw 8 is mounted on the handle 1, and an inner end of the set screw 8 is embedded in the long limiting groove 33 and abuts against the outer wall of the puncture straw 3. So set up, can make puncture straw 3 only can axial displacement but unable rotation in handle 1, ensure that the slope of puncture straw 3 front end punctures the face 31 and can not take place to deflect, avoid influencing the broken amniotic sac operation of hook.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Within the scope of the technical idea of the present invention, various modifications and alterations can be made, and any person skilled in the art can make modifications, amendments or equivalent replacements according to the above description, all belonging to the protection scope of the present invention.

Claims

1. Obstetrical artificial membrane rupture device, its characterized in that: the amniotic membrane sac puncture needle comprises a handle (1), hard blunt heads (2) and a puncture suction tube (3), wherein the two hard blunt heads (2) which are symmetrical in a splayed shape are arranged at the front end of the handle (1), the front ends of the hard blunt heads (2) are rounded and bent forwards to the middle, and a gap (4) for exposing the amniotic membrane sac is reserved between the two hard blunt heads (2); a cavity (11) is formed in the handle (1), the puncture straw (3) is installed on the handle (1), the front end of the puncture straw (3) extends to the gap (4), and a slope puncture surface (31) used for hooking and breaking a amniotic sac is arranged at the front end of the puncture straw (3); a cavity (11) is formed in the handle (1), the puncture straw (3) is of a hollow structure, and the rear end of an inner hole of the puncture straw (3) is hermetically connected with the front end of the cavity (11) in the handle (1); be equipped with negative pressure suction port (32) on slope acanthopore (31), the hole intercommunication of negative pressure suction port (32) and puncture straw (3), negative pressure suction port (32) are sealed with meeting water dissolvable material (5), and the hole of puncture straw (3) and cavity (11) of handle (1) communicate each other and the evacuation forms the negative pressure, is provided with transparent observation window (12) that can follow outside observation cavity (11) on handle (1).

2. The obstetric artificial membrane rupture device of claim 1, wherein: the front end of the handle (1) is provided with a display window (13), and PH test paper is arranged in the display window (13).

3. The obstetric artificial membrane rupture device of claim 1, wherein: scales are arranged on the surface of the handle (1).

4. The obstetric artificial membrane rupture device of claim 1, wherein: the front end of the hard blunt head (2) is in a wide arc shape.

5. The obstetric artificial membrane rupture device of any one of claims 1 to 4, wherein: the rear end of the puncture suction pipe (3) is fixedly connected with the front end of the handle (1), the rear end of an inner hole of the puncture suction pipe (3) is in sealed butt joint with the front end of a cavity (11) of the handle (1), and a vacuumizing joint (6) communicated with the cavity (11) is installed at the rear end of the handle (1).

6. The obstetric artificial membrane rupture device of any one of claims 1 to 4, wherein: puncture straw (3) wear to establish in cavity (11) and ability axial displacement, be provided with sealing washer (7) between puncture straw (3) surface and cavity (11) surface of handle (1), sealing washer (7) make puncture straw (3) also can keep cavity (11) airtight when moving in cavity (11), install the locking piece that is used for locking puncture straw (3) on handle (1).

7. The obstetric artificial membrane rupture device of claim 6, wherein: the locking piece is a set screw (8), a limiting long groove (33) is formed in the outer wall of the rear end of the puncture suction pipe (3), the set screw (8) is installed on the handle (1), and the inner end of the set screw (8) is embedded in the limiting long groove (33) and abuts against the outer wall of the puncture suction pipe (3).

8. The obstetric artificial membrane rupture device of any one of claims 1 to 4, wherein: the water-soluble material (5) is polyvinyl alcohol plastic.

9. The obstetric artificial membrane rupture device of any one of claims 1 to 4, wherein: the front end of the hard blunt head (2) is bent forwards towards the middle by an angle of 40-50 degrees.

10. The obstetric artificial membrane rupture device of claim 9, wherein: the front end of the hard blunt head (2) is bent forwards to the middle by an angle of 45 degrees.