CN218500785U

CN218500785U - Artificial membrane-breaking sleeve for induced labor

Info

Publication number: CN218500785U
Application number: CN202221256675.9U
Authority: CN
Inventors: 白晓霞; 赵轶; 项晴怡; 戴海珍
Original assignee: Womens Hospital of Zhejiang University School of Medicine
Current assignee: Womens Hospital of Zhejiang University School of Medicine
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2023-02-21
Anticipated expiration: 2032-05-24

Abstract

The utility model provides an artificial rupture of membranes sleeve pipe of zero risk induced labor with low cost, simple and convenient operation, low technical requirement, injury doctor and patient birth canal and fetus presenting part, the artificial rupture of membranes sleeve pipe includes stereoplasm urceolus and core, the longitudinal extension length of urceolus is not less than 16cm, the urceolus link up from near-end to distal end, and the distal end of urceolus is an inclined plane in order to constitute the bevel connection that is used for the puncture; the core body is movably arranged in the outer barrel along the axial direction, the longitudinal extension length of the core body is larger than that of the outer barrel, at least part of the core body is in sliding sealing fit with the inner peripheral wall of the hard outer barrel to form a sealing cavity among the core body, the outer barrel and the amniotic sac, the core body is pulled, and the outer membrane of the amniotic sac is adsorbed to the inclined opening of the outer barrel.

Description

Artificial membrane-breaking sleeve for induced labor

Technical Field

The utility model relates to the field of medical equipment, concretely relates to urge artifical rupture of membranes sleeve pipe of induced labor.

Background

The artificial rupture of membranes before induced labor is a common obstetrical operation, no special artificial rupture tool exists clinically at present, and the artificial rupture of membranes is usually carried out by means of instruments which are conveniently taken by a syringe needle, a amniotic cavity puncture needle, a vascular forceps and the like. Aiming at the prior manual membrane breaking device before induced labor, the invention has the advantages that a plurality of devices are arranged or operated by a single hand, the needle head is hidden in the needle cylinder after improvement, the risk of pricking fingers and birth canal during exploration is avoided, the risk of pricking fingers, birth canal and birth canal is also existed in the process of pushing out or ejecting the needle head to prick the fetal membrane, the device manufacture and the single-hand operation are complex, and the technical requirement is high.

The needle head or the puncture needle is short, an operator places the needle head between an index finger and a middle finger with one hand, the needle head is explored along the vagina and enters the cervical orifice to puncture the amniotic sac, the possibility of stabbing fingers and birth canal of a doctor exists in one-hand operation, particularly, the cervix is not completely regressed, the position of the cervical orifice faces backwards, and the fingers clamping the needle head have the problems of difficulty in exploring the uterine orifice, higher operation skill and membrane rupture failure.

The depth of the vagina is about 12cm-15cm, the artificial rupture of the membrane by using the vascular forceps requires the cooperation of two hands of a surgeon, the index finger and the middle finger of one hand probe into the cervical orifice, and the other hand holds the vascular forceps to enter the forceps to rupture the amniotic sac along the direction of the finger in the cervix. The length of the forceps leaves of the common vascular forceps is not enough, the stewed forceps heads are not easy to clamp the amniotic sac, the handle part of the vascular forceps is difficult to open and close after entering the vagina, and especially the operation failure risk of patients with incomplete regression of the cervix and backward uterine opening is high. The fetus with unobvious preamplitus is easy to stab and hurt the fetal head.

SUMMERY OF THE UTILITY MODEL

The utility model provides a with low costs, easy operation is convenient, technical requirement is low, damage doctor and patient are produced and are said and the zero risk of foetus' prelude portion urges the artifical rupture of membranes sleeve pipe of induced labor, this artifical rupture of membranes sleeve pipe includes:

the hard outer cylinder is longitudinally extended to be not less than 16cm, the outer cylinder penetrates from the near end to the far end, and the far end of the outer cylinder is an inclined plane to form an inclined opening for puncture;

the core, the core is along axially movable setting be in the urceolus in, the longitudinal extension length of core is greater than the urceolus, the core at least part with the internal perisporium sliding seal cooperation of stereoplasm urceolus in order to constitute sealed chamber between core, urceolus and amniotic sac, the pull core, amniotic sac adventitia then is adsorbed to urceolus bevel connection department.

Preferably, the core body is a core barrel, the outer peripheral wall of the core barrel is in sliding sealing fit with the inner peripheral wall of the outer barrel, and the distal end of the core barrel is sealed. Preferably, the core barrel is a hard piece.

Preferably, the outer diameter of the outer cylinder is 0.5cm to 0.8cm, and the outer diameter of the core is 0.4cm to 0.6cm.

Preferably, the included angle between the inclined opening and the horizontal plane is 10-30 degrees.

Preferably, the length of the outer cylinder is 18cm, and the length of the core is 20cm.

Preferably, the distal end of the core body has a bevel matching the bevel, and the outer peripheral wall of the outer cylinder near the bevel has a rough surface. Preferably, the distal end of the core body has a bevel matching the bevel, and the outer peripheral wall of the outer cylinder near the bevel has a rough surface.

Through the utility model provides an artifical rupture of membranes sleeve pipe, doctor can utilize both hands to operate, and the needle is held and explore in a flexible way and convenient operation more singlehanded. The hard plastic outer tube avoids the risk of stabbing the fingers of an operator and the birth canal in blind operation, avoids the risk of injuring the fetal presenting part by a metal needle or a pair of vascular forceps, obviously exceeds the length of the vagina, causes the operation aspect, and has simple manufacture and lower cost. Is a manual membrane breaking device before induced labor with low cost, easy operation, low technical requirement and low damage risk.

Drawings

Fig. 1 is a schematic structural view of a cartridge according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an outer barrel according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a sleeve according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a sleeve structure according to another embodiment of the present invention;

fig. 5 is a schematic view of the use process of the sleeve provided by the present invention.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that the directions or positional relationships indicated by "up", "down", "near", "far", "left", "right", "front", "back", "longitudinal", "axial", etc. are all directions or positional relationships based on the surgical forceps being placed on a horizontal plane, where "near" is a side close to the surgeon and "far" is a side far from the surgeon.

As shown in fig. 1-3, the embodiment of the present invention provides an induced labor induced artificial rupture of membranes casing, which comprises a hard outer cylinder 1 and a core 2, wherein the longitudinal extension length of the outer cylinder 1 is not less than 16cm, the outer cylinder 1 has a proximal end and a distal end, the outer cylinder is through from the proximal end to the distal end, the distal end of the outer cylinder forms an inclined plane 100 to form an inclined opening for puncture, and the outer cylinder has an inner peripheral wall; the core body 2 is movably arranged in the outer cylinder 1 along the axial direction, at least part of the outer peripheral wall of the core body 2 is in sliding sealing fit with the inner peripheral wall of the outer cylinder, and the longitudinal extension length of the core body 2 is larger than that of the outer cylinder. Therefore, when the core body is pulled out of the outer tube by a doctor, the core body performs the function similar to a piston, a sealing cavity is formed among the core body, the outer tube and the amniotic sac, the core body is pulled, negative pressure is formed between the outer tube and the amniotic sac outer membrane, the amniotic sac outer membrane is adsorbed to the inclined opening of the outer tube, and the proximal end of the outer tube punctures the amniotic sac wrapped on the outer tube by utilizing the adsorption function.

By utilizing the artificial membrane rupturing sleeve provided by the utility model, please refer to fig. 5, when the membrane is ruptured manually, an operator enters the uterine orifice along the vagina with a middle finger and a forefinger, explores the pre-exposed part and properly opens and fixes the cervical orifice, and another hand-held artificial membrane rupturing device, the tip enters the cervical orifice along and clings to the direction of the finger in the vagina, after the finger in the cervix gently pushes up the pre-exposed part to touch the amniotic sac, and after another hand-held artificial membrane rupturing tube inclined plane reaches the pre-exposed part, the core tube is sucked outwards, so that the fetal membrane is adsorbed on the inclined opening of the outer tube, and the inclined opening pricks and rotates the membrane rupturing tube slightly, thereby achieving the purpose of puncturing the amniotic sac; the utility model provides a profile of bevel connection is the design of arc fillet, can not cause the damage to finger and birth canal in the puncture. And because the core body is used with the urceolus jointly, make things convenient for the urceolus to concentrate the application of force, puncture high efficiency.

In some embodiments, the core body 2 is a solid structure, and the distal end of the core body 2 is a piston which is in sealing fit with the peripheral wall; in this embodiment, the core 2 is a hollow core cylinder, the outer peripheral wall of the core cylinder is in sliding sealing fit with the inner peripheral wall of the outer cylinder, so that the whole core cylinder can axially move in the outer cylinder as a piston, the hollow structure has light weight and is convenient for a doctor to operate, and in addition, in order to ensure sealing to form negative pressure among the core cylinder, the outer cylinder and the amniotic sac outer membrane, the far end 201 of the core cylinder 2 is sealed. And drawing the core barrel to form negative pressure between the outer barrel and the amniotic sac outer membrane so as to adsorb the amniotic sac to the inclined opening of the casing. In order to avoid damaging the birth canal and the fetal presenting part of a doctor and a patient, the outer cylinder is a plastic part, the risk of pricking fingers and the birth canal of an operator in blind operation is avoided by the hard plastic pipe, and the risk of damaging the fetal presenting part by a metal needle or a pair of vascular clamps is avoided.

For convenient operation, the core barrel is a hard piece.

In some embodiments, the outer diameter of the outer barrel is 0.5cm to 0.8cm, and the outer diameter of the core is 0.4cm to 0.6cm, so as to ensure that the outer peripheral wall of the core is in sealed sliding fit with the inner peripheral wall of the outer barrel; preferably, the outer diameter of the outer barrel is 0.5cm, and the outer diameter of the core body is preferably 0.4cm so as to be suitable for the sleeve to penetrate into the amniotic sac.

Specifically, the included angle between the inclined opening and the horizontal plane is 10-30 degrees.

The length of the outer cylinder is 18cm, the length of the core body is 20cm, the vaginal depth is about 12cm-15cm, the length of the outer cylinder and the core body obviously exceeds the length of the vagina, so that the operation is convenient, the manufacturing is simple, and the cost is low

The distal end of the core body 2 also forms a bevel 200.

The inclined plane 200 of the core body 2 is overlapped and aligned with the inclined opening 100 of the outer cylinder, so that the two are matched, and the appearance is more attractive.

In this embodiment, as shown in fig. 4, the proximal end of the core 2 may be designed as a handle 21 for the doctor's pulling operation, and the distal end of the outer barrel is provided with a positioning plate 11 for the doctor's fingers to abut against, so that the core can be pulled out from the outer barrel with one hand. Optionally, the distal end of the outer barrel 1 is further provided with a limiting plate to limit the core 2 from falling out of the outer barrel.

In order to further increase the acting force of the amniotic sac and the outer barrel, the outer peripheral wall of the outer barrel, which is close to the bevel opening, is provided with a rough surface so as to enhance the puncture force of the outer barrel.

Exemplarily, a two-handed manual membrane rupture method is provided:

(1) Sterilizing vulva and vagina and spreading sterile towel;

(2) The index finger of the middle finger of the right hand probes along the vagina and enters the inner opening of the cervix to touch the preemergence part, and the preemergence part is slightly pushed upwards to touch the amniotic sac;

(3) The left hand holds the artificial rupture membrane tube, and the oblique opening is downward along the space between two fingers of the right hand and enters the cervical canal to reach the amniotic sac;

(4) Sucking the outer barrel with the left hand to make the amniotic sac cling to the outer barrel, pushing the outer barrel inwards and rotating the outer barrel to puncture the amniotic sac, and allowing amniotic fluid to flow out along the rupture tube;

(5) Observing the property of amniotic fluid, no bleeding, and monitoring the fetal heart to be normal, namely completing artificial rupture of membranes.

Based on the above description, the artificial rupture of membranes sleeve that this embodiment provided has following beneficial effect:

(1) By using two hands to operate, the probe is more flexible and convenient to operate than the probe held by one hand

(2) The hard and thin plastic outer cylinder avoids pricking the fingers of the operator and the birth canal risk in blind operation

(3) Avoid the risk of damaging the fetal presenting part by a metal needle or a pair of vascular clamps

(4) The length of the rupture tube exceeding the vagina makes the operation simpler

(5) The inner core sucks to make the amniotic sac more easily cling to the coat

(6) Simple manufacture and low cost

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a urge artifical rupture of membranes sleeve pipe of induced labor which characterized in that, it includes:

2. The labor induction induced manual rupture of membranes sleeve as claimed in claim 1, wherein the core body is a core cylinder, the outer peripheral wall of the core cylinder is in sliding sealing fit with the inner peripheral wall of the outer cylinder, and the distal end of the core cylinder is sealed.

3. The labor-inducing artificial rupture of membranes sleeve of claim 1, wherein the outer cylinder is a plastic piece.

4. The labor-inducing artificial rupture of membranes sleeve of claim 2, wherein the core cylinder is a hard piece.

5. The labor-induction-induced artificial rupture of membranes sleeve of claim 1, wherein the outer diameter of the outer cylinder is 0.5cm-0.8cm, and the outer diameter of the core body is 0.4-0.6cm.

6. The labor-induced artificial rupture of membranes sleeve of claim 5, wherein the outer diameter of the outer cylinder is 0.5cm, and the outer diameter of the core body is 0.4cm.

7. The labor-induced labor membrane-rupturing sleeve pipe as claimed in claim 1, wherein the included angle between the inclined opening and the horizontal plane is 10-30 °.

8. The labor induction induced manual rupture of membranes sleeve as claimed in claim 1, wherein the length of the outer cylinder is 18cm, and the length of the core body is 20cm.

9. The labor induction induced manual rupture of membranes sleeve as claimed in claim 1, wherein the distal end of the core has a bevel matching with the bevel, and the outer peripheral wall of the outer cylinder close to the bevel has a rough surface.

10. The labor-inducing artificial rupture of membranes cannula as claimed in claim 9, wherein the proximal end of the core body is provided with a handle for facilitating the pulling operation of the doctor, and the distal end of the outer barrel is provided with a positioning plate for facilitating the pressing of the fingers of the doctor against the positioning plate.