CN211355799U

CN211355799U - Fetal membrane breaking tool

Info

Publication number: CN211355799U
Application number: CN201922362530.1U
Authority: CN
Inventors: 蔡明翠
Original assignee: Tcm Hospital Changxing
Current assignee: Tcm Hospital Changxing
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-28
Anticipated expiration: 2029-12-25

Abstract

The utility model belongs to the technical field of medical appliances, a rupture of fetal membranes instrument is disclosed. It is including expanding external genitals and rupture of membranes subassembly, and rupture of membranes subassembly sets up in expanding external genitals, and rupture of membranes subassembly includes support piece, sleeve, rupture of membranes needle and elastic component, and support piece connects in expanding external genitals, and sleeve sliding connection just slides the direction and opens the open-ended direction for expanding external genitals for the orientation in support piece, and the sleeve is configured into the butt fetal membrane, rupture of membranes needle sliding connection in sleeve, and the elastic component is connected between the non-puncture end of rupture of membranes needle and sleeve. When the membrane is broken, firstly, the birth canal is opened through the vaginal dilator, the sleeve is pushed inwards, the sleeve slides on the supporting piece until the sleeve is abutted against the fetal membrane, then the membrane breaking needle is pushed inwards, the elastic piece is compressed, and the membrane breaking needle gradually extends out of the sleeve to penetrate into the fetal membrane. The membrane rupturing component of the membrane rupturing tool is integrally connected in the vaginal dilator, only the sleeve and the membrane rupturing needle need to be pushed inwards, and the operation process is simple.

Description

Fetal membrane breaking tool

Technical Field

The utility model relates to the technical field of medical appliances, especially, relate to a fetal membrane breaking tool.

Background

At present, in the clinical practice of obstetrics and gynecology, the phenomena of late childbirth, lack of pre-amniotic fluid, excessive amniotic fluid, uterine weakness, full opening of uterine orifice, incapability of self-breaking of fetal membranes and the like frequently occur, the phenomena generally need to be assisted by puncturing the amniotic membrane by an artificial way to assist the production of the amniotic membrane, the artificial membrane-breaking induced labor is a commonly used induced labor method at present, and the artificial membrane-breaking induced labor is to clamp or puncture the fetal membrane and discharge the amniotic fluid so as to observe the color of the amniotic fluid, the amniotic fluid flows out after the membrane is broken, the volume of a uterine cavity is changed, uterine dynamics is changed to start uterine contraction, the uterine contraction is strengthened, and the labor progress is accelerated. Among the prior art, rupture of membranes device commonly used is including the piston cylinder and the piston rod that cup joint, and rupture of membranes needle is installed to the front end of piston rod, pushes the piston cylinder into the birth canal during the use, and the operation piston rod carries out the rupture of membranes, and this design piston cylinder directly pushes, and the birth canal is not expanded in advance, and the operation degree of difficulty is big to cause the lying-in woman easily to be painful, the travelling comfort is low. In another mode, the birth canal and the uterine orifice are firstly expanded through the vaginal dilator, and then a membrane breaking knife is used for penetrating through the vaginal dilator to cut the fetal membrane. After the vaginal dilator is used, the membrane breaking knife is suspended in the vaginal dilator to be operated, so that the operation is inconvenient and the difficulty is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rupture of fetal membranes instrument, rupture of membranes process is simple, convenient operation.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a fetal membrane breaking tool, is including expanding external genitals and rupture of membranes subassembly, rupture of membranes subassembly set up in expand in the external genitals, rupture of membranes subassembly includes support piece, sleeve, broken membrane needle and elastic component, support piece connect in expand in the external genitals, sleeve sliding connection in support piece in and the slip direction be the orientation expand the external genitals open-ended direction, the sleeve is configured to the butt fetal membrane, broken membrane needle sliding connection in the sleeve, the elastic component connect in broken membrane needle the non-puncture end with between the sleeve.

Preferably, an abutment member is connected to an end of the sleeve adjacent to the dilator opening, the abutment member being configured to abut a fetal membrane. The butt joint piece can be convenient for contact with the fetal membrane, and then make things convenient for rupture of membranes of rupture of membranes needle.

Preferably, the abutting piece is of a hemispherical curved surface structure. Thereby, the abutment is more soft and comfortable when contacting the membrane.

Preferably, the abutment is made of soft silicone. The silica gel has no irritation, toxicity or anaphylaxis to human tissues, and has little rejection reaction of organisms; and the silica gel has good physicochemical properties, can keep the original elasticity and softness in the contact process with body fluid and tissues, is not degraded, and is a stable inert substance.

Preferably, a stop member is connected to an end of the sleeve away from the dilator opening. The stop can prevent the sleeve from disengaging the support.

Preferably, the elastic member is a spring, and the spring is sleeved on the membrane rupturing needle and connected between the non-puncturing end of the membrane rupturing needle and the sleeve. From this, the elastic component can provide certain elastic buffer power for the operator, and the operator can exert pressure slowly, can not puncture suddenly, reduces the risk of operation, avoids pricking the fetal membrane too deeply. Meanwhile, when the membrane breaking needle is pressed, the elastic piece can be pressed on the sleeve in a propping mode, acting force is applied to the sleeve, the sleeve is pressed on a tire membrane in a propping mode, and membrane breaking of the membrane breaking needle is facilitated.

Preferably, the non-piercing end of the membrane rupturing needle is provided with a contact portion. The contact portion can facilitate the application of force to the rupture needle.

Preferably, the vaginal dilator comprises an upper sheet and a lower sheet which are hinged to each other, the upper sheet comprises an integrally formed upper clamping piece and a first handle, the lower sheet comprises an integrally formed lower clamping piece and a second handle, the first handle and the second handle can be drawn close to each other to drive the upper clamping piece and the lower clamping piece to be opened, and the membrane breaking component is connected to the inner side of the upper clamping piece. Therefore, when the birth canal needs to be expanded, the upper clamping piece and the lower clamping piece are plugged into the birth canal at the same time, the first handle and the second handle are gradually compressed, the upper clamping piece and the lower clamping piece are expanded along with the upper clamping piece and the lower clamping piece, the birth canal is expanded, and the subsequent film breaking operation is facilitated.

Preferably, a locking member is connected between the first handle and the second handle. Therefore, after the upper clamping piece and the lower clamping piece are opened, the first handle and the second handle are connected and locked through the locking part, and the upper clamping piece and the lower clamping piece are kept in an opened state.

Preferably, the upper page and the lower page are both made of hard silica gel. The silica gel has no irritation, toxicity or anaphylaxis to human tissues, has little rejection reaction, is suitable for being directly contacted with human bodies, and ensures the safety of puerperae.

The utility model has the advantages that:

the utility model provides a fetal membrane breaking tool. When the membrane is broken, firstly, the birth canal is opened through the vaginal dilator, the sleeve is pushed inwards, the sleeve slides on the supporting piece until the sleeve is abutted against the fetal membrane, then the membrane breaking needle is pushed inwards, the elastic piece is compressed, and the membrane breaking needle gradually extends out of the sleeve to penetrate into the fetal membrane; after the fetal membrane is punctured, the force applied to the membrane breaking needle is cancelled, and the membrane breaking needle reversely moves under the action of the restoring force of the elastic piece and withdraws from the fetal membrane. The membrane rupturing component of the membrane rupturing tool is integrally connected in the vaginal dilator, only the sleeve and the membrane rupturing needle need to be pushed inwards, and the operation process is simple.

Drawings

FIG. 1 is a cross-sectional view of the fetal membrane rupturing tool provided by the present invention in an unused state;

FIG. 2 is a cross-sectional view of the fetal membrane rupturing tool provided by the present invention in a negative expansion state;

fig. 3 is a cross-sectional view of the fetal membrane rupturing tool provided by the present invention in a membrane rupturing state.

In the figure:

1. a vaginal dilator; 11. an upper clamping piece; 12. a first handle; 13. a lower clamping piece; 14. a second handle; 15. a locking member; 2. a membrane rupturing assembly; 21. a support member; 22. a sleeve; 221. an abutting member; 222. a stopper; 23. a membrane rupturing needle; 231. a contact portion; 24. an elastic member.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment provides a fetal membrane rupturing tool for facilitating the performance of a parturient's production process that is not ruptured because of the delay of the fetal membrane. As shown in fig. 1-3, the fetal membrane rupturing tool comprises a vaginal dilator 1 and a membrane rupturing component 2, wherein the membrane rupturing component 2 is disposed in the vaginal dilator 1. The vaginal dilator 1 is used for opening the birth canal, so as to facilitate rupture of the membrane; the membrane rupturing component 2 is used for puncturing the fetal membranes, so that the labor process is accelerated.

Specifically, the vaginal dilator 1 comprises an upper page and a lower page which are hinged to each other, the upper page comprises an integrally formed upper clamping piece 11 and a first handle 12, the lower page comprises an integrally formed lower clamping piece 13 and a second handle 14, the first handle 12 and the second handle 14 can be drawn close to each other to drive the upper clamping piece 11 and the lower clamping piece 13 to be opened, and the membrane rupturing component 2 is connected to the inner side of the upper clamping piece 11. A locking member 15 is connected between the first handle 12 and the second handle 14. When the birth canal needs to be expanded, the upper clip 11 and the lower clip 13 are plugged into the birth canal at the same time, the first handle 12 and the second handle 14 are gradually pressed, the upper clip 11 and the lower clip 13 are expanded along with the upper clip, the birth canal is expanded, and the subsequent operation of membrane rupture is facilitated. After the upper jaw 11 and the lower jaw 13 are opened, the first handle 12 and the second handle 14 are connected and locked through the locking part 15, so that the upper jaw 11 and the lower jaw 13 are kept in an opened state.

The upper page and the lower page are both made of hard silica gel. The silica gel has no irritation, toxicity or anaphylaxis to human tissues, has little rejection reaction, is suitable for being directly contacted with human bodies, and ensures the safety of puerperae.

The membrane rupturing assembly 2 comprises a support member 21, a sleeve 22, a membrane rupturing needle 23 and an elastic member 24, wherein the support member 21 is connected in the vaginal dilator 1, the sleeve 22 is slidably connected in the support member 21 and is in a sliding direction towards the opening of the vaginal dilator 1, the sleeve 22 is configured to abut against a fetal membrane, the membrane rupturing needle 23 is slidably connected to the sleeve 22, and the elastic member 24 is connected between the non-puncturing end of the membrane rupturing needle 23 and the sleeve 22.

When the membrane is broken, firstly, the birth canal is opened through the vaginal dilator 1, the sleeve 22 is pushed inwards, the sleeve 22 slides on the support piece 21 until the sleeve abuts against the fetal membrane, then the membrane breaking needle 23 is pushed inwards, the elastic piece 24 is compressed, and the membrane breaking needle 23 gradually extends out of the sleeve 22 to penetrate into the fetal membrane; after the fetal membrane is punctured, the force applied to the membrane rupturing needle 23 is canceled, and the membrane rupturing needle 23 reversely moves under the action of the restoring force of the elastic piece 24 to withdraw from the fetal membrane. The membrane rupturing component 2 of the membrane rupturing tool is integrally connected in the vaginal dilator 1, only the sleeve 22 and the membrane rupturing needle 23 need to be pushed inwards, and the operation process is simple.

The elastic member 24 may be a spring, which is sleeved on the rupture needle 23 and connected between the non-puncturing end of the rupture needle 23 and the sleeve 22. The elastic piece 24 can provide certain elastic buffering force for an operator, the operator can slowly apply pressure, sudden puncture is avoided, operation risk is reduced, and the situation that the fetal membrane is punctured deeply is avoided. Meanwhile, when the membrane breaking needle 23 is pressed, the elastic piece 24 can be pressed against the sleeve 22 to apply acting force to the sleeve 22, so that the sleeve 22 is pressed against the fetal membrane, and the membrane breaking needle 23 is convenient to break the membrane.

A stop member 222 is attached to the end of the sleeve 22 remote from the flared opening of the speculum 1. One end of the spring abuts against the stopper 222. The stop 222 prevents the sleeve 22 from coming off the support 21.

The non-piercing end of the rupture needle 23 is provided with a contact portion 231. The contact portion 231 can facilitate the application of force to the rupture pin 23.

In order to improve the comfort of the sleeve 22 abutting one end of the fetal membrane, one end of the sleeve 22 close to the opening of the vaginal dilator 1 is connected with an abutting piece 221, and the abutting piece 221 is configured to abut the fetal membrane. The abutting member 221 has a hemispherical curved surface structure. The abutment 221 is made of soft silicone. Thereby, the abutment 221 is more flexible and comfortable when contacting the membrane. The silica gel has no irritation, toxicity or anaphylaxis to human tissues, and has little rejection reaction of organisms; and the silica gel has good physicochemical properties, can keep the original elasticity and softness in the contact process with body fluid and tissues, is not degraded, and is a stable inert substance.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a fetal membrane breaking tool, includes and expands external genitals (1) and rupture of membranes subassembly (2), rupture of membranes subassembly (2) set up in expand internal genitals (1), rupture of membranes subassembly (2) include support piece (21), sleeve (22), rupture of membranes needle (23) and elastic component (24), support piece (21) connect in expand internal genitals (1), sleeve (22) sliding connection in support piece (21) and sliding direction be towards expand external genitals (1) open-ended direction, sleeve (22) are configured as the butt fetal membrane, rupture of membranes needle (23) sliding connection in sleeve (22), elastic component (24) connect in rupture of membranes needle (23) not puncture end with between sleeve (22).

2. The fetal membrane rupturing tool according to claim 1, wherein an abutment member (221) is connected to an end of the sleeve (22) near the flared opening of the vaginal dilator (1), the abutment member (221) being configured to abut a fetal membrane.

3. The fetal membrane rupturing tool according to claim 2, wherein the abutment member (221) is a hemispherical curved structure.

4. The fetal membrane rupturing tool according to claim 2, wherein the abutment member (221) is made of soft silicone.

5. The fetal membrane rupturing tool according to claim 1, wherein a stop member (222) is connected to an end of the sleeve (22) distal to the flared opening of the vaginal dilator (1).

6. The fetal membrane rupturing tool according to claim 1, wherein the elastic member (24) is a spring, and the spring is sleeved on the rupture needle (23) and connected between the non-piercing end of the rupture needle (23) and the sleeve (22).

7. Fetal membrane rupturing tool according to claim 1, wherein the non-piercing end of the rupture needle (23) is provided with a contact portion (231).

8. A fetal membrane rupturing tool according to any one of claims 1 to 5, wherein the vaginal dilator (1) comprises an upper leaf and a lower leaf hinged to each other, the upper leaf comprises an upper jaw (11) and a first handle (12) which are integrally formed, the lower leaf comprises a lower jaw (13) and a second handle (14) which are integrally formed, the first handle (12) and the second handle (14) can be drawn close to each other to drive the upper jaw (11) and the lower jaw (13) to open, and the membrane rupturing assembly (2) is connected to the inner side of the upper jaw (11).

9. Fetal membrane rupturing tool according to claim 8, wherein a locking member (15) is connected between the first handle (12) and the second handle (14).

10. The fetal membrane rupturing tool of claim 8, wherein the upper leaf and the lower leaf are each made of hard silicone.