CN210871959U

CN210871959U - Obstetrical membrane rupture needle

Info

Publication number: CN210871959U
Application number: CN201921685003.8U
Authority: CN
Inventors: 孙小云; 曹龙军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-30
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses an obstetrical membrane breaking needle, including cylinder and pjncture needle, the circular shape apron of right-hand member fixedly connected with of cylinder, the middle part sliding connection of apron has the push rod, the push rod is hollow pipe structure, be equipped with annular spout on the lateral wall of cylinder, sliding connection has the circular shape mounting panel in the spout, the mid-mounting of mounting panel has the joint, pjncture needle and articulate, be equipped with the banking pin on the push rod, the middle part of apron is equipped with circular shape through-hole, the avris of through-hole is equipped with the breach of two symmetries, the inner chamber fixedly connected with baffle of cylinder, be connected with the spring between baffle and the joint. The utility model discloses hide the pjncture needle in the cylinder, press the push rod inwards through the gland, can make the pjncture needle stretch out and pierce through the amnion. Thereby can avoid the pjncture needle to stab the lying-in woman's health, greatly reduced the operation degree of difficulty, convenient to use.

Description

Obstetrical membrane rupture needle

Technical Field

The utility model relates to the technical field of medical equipment, specifically a membrane breaking needle for obstetrical department.

Background

Gynaecology and obstetrics is one of four main subjects of clinical medicine, and the etiology, pathology, diagnosis and prevention of female reproductive organ diseases, physiological and pathological changes of pregnancy and delivery, prevention and diagnosis and treatment of high-risk pregnancy and dystocia, internal secretion in female reproduction, family planning, female health care and the like are mainly researched. In clinical operation, generally, utilize the rupture of membranes device of cylinder structure to inhale the amniotic fluid, but the cylinder is stretching into the in-process of vagina, causes the stab easily to the lying-in woman, and the degree of difficulty of operation is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an obstetrical membrane rupture needle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an obstetrical membrane breaking needle, includes cylinder and pjncture needle, the circular shape apron of right-hand member fixedly connected with of cylinder, the middle part sliding connection of apron has the push rod, the push rod is the hollow pipe structure, be equipped with annular spout on the lateral wall of cylinder, sliding connection has the circular shape mounting panel in the spout, the mid-mounting of mounting panel has the joint, pjncture needle and articulate, be equipped with the banking pin on the push rod, the middle part of apron is equipped with the circular shape through-hole, the avris of through-hole is equipped with the breach of two symmetries, the inner chamber fixedly connected with baffle of cylinder, be connected with the spring between baffle and the joint.

Preferably, the left end of cylinder seals and is equipped with the round hole in the middle part, the inner chamber left end of cylinder bonds has the rubber buffer, the rubber buffer is located round hole department.

Preferably, the diameter of the puncture needle is smaller than that of the round hole, the puncture needle and the axis of the round hole are collinear, and the right end of the push rod is in threaded connection with a gland.

Preferably, the spring cup joints on the push rod, the right-hand member that connects is equipped with the mounting groove, the left end and the mounting groove joint of push rod, the pjncture needle is the hollow needle tubing of metal.

Preferably, the length and width of the notch are larger than those of the limit nail, and the needle cylinder is formed by transparent PP plastic in an injection molding mode.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses hide the pjncture needle in the cylinder, after the front end of cylinder and amnion contact, press the push rod inwards through the gland, can make the pjncture needle stretch out and pierce through the amnion. Thereby can avoid the pjncture needle to stab the lying-in woman's health, greatly reduced the operation degree of difficulty, convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of a portion B of fig. 1 according to the present invention.

In the figure: 1. a needle cylinder; 2. a partition plate; 3. puncturing needle; 4. a push rod; 5. a circular hole; 6. a gland; 7. a spring; 8. a limit pin; 9. a cover plate; 10. a notch; 11. a chute; 12. mounting a plate; 13. a joint; 14. mounting grooves; 15. and a rubber plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an obstetrical membrane breaking needle, includes cylinder 1 and pjncture needle 3, the circular shape apron 9 of right-hand member fixedly connected with of cylinder 1, the middle part sliding connection of apron 9 has push rod 4, push rod 4 is hollow pipe structure, be equipped with annular spout 11 on the lateral wall of cylinder 1, sliding connection has circular shape mounting panel 12 in the spout 11, the mid-mounting of mounting panel 12 has joint 13, pjncture needle 3 is connected with joint 13, be equipped with stop pin 8 on the push rod 4, the middle part of apron 9 is equipped with circular shape through-hole, the avris of through-hole is equipped with the breach 10 of two symmetries, the inner chamber fixedly connected with baffle 2 of cylinder 1, be connected with spring 7 between baffle 2 and the joint 13.

Specifically, the left end of cylinder 1 seals and is equipped with round hole 5 in the middle part, the inner chamber left end of cylinder 1 bonds and has rubber buffer 15, rubber buffer 15 is located round hole 5 department. When the front end of the needle cylinder 1 is pressed against the amnion, the puncture needle 3 punctures the rubber plug 15 and extends out.

Specifically, the diameter of the puncture needle 3 is smaller than that of the round hole 5, the puncture needle 3 and the axis of the round hole 5 are collinear, and the right end of the push rod 4 is in threaded connection with the gland 6. Ensures that the puncture needle 3 can extend out of the round hole 5, the gland 6 can be taken down, and then the amniotic fluid flows out of the push rod 4.

Specifically, the spring 7 is sleeved on the push rod 4, the right end of the joint 13 is provided with a mounting groove 14, the left end of the push rod 4 is clamped with the mounting groove 14, and the puncture needle 3 is a metal hollow needle tube. The front end of the puncture needle 3 is provided with a peak.

Specifically, the length and width of the notch 10 are larger than those of the limit nail 8, and the needle cylinder 1 is formed by injection molding of transparent PP plastic. When the push rod 4 is pushed inwards, the limit pin 8 slides into the needle cylinder 1 from the notch 10 and then rotates a certain angle to fix the push rod 4.

The working principle is as follows: when the puncture needle is used, the needle cylinder extends into the vagina of a lying-in woman, the front end of the needle cylinder is in contact with the amnion, the gland 6 is pressed inwards, the push rod 4 retracts inwards, the spring 7 is stretched, the front end of the puncture needle 3 moves forwards to puncture the rubber plug 15 to extend out, and then the amnion is punctured. The limit pin 8 slides into the needle cylinder 1 from the gap 10, then rotates a certain angle to fix the push rod 4, so that the puncture needle 3 keeps the extending state, and amniotic fluid flows out from the push rod 4 after the gland 6 is taken down.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an obstetrical membrane rupture needle, includes cylinder (1) and pjncture needle (3), its characterized in that: the utility model discloses a syringe, including cylinder (1), right-hand member fixedly connected with circular shape apron (9), the middle part sliding connection of apron (9) has push rod (4), push rod (4) are hollow pipe structure, be equipped with annular spout (11) on the lateral wall of cylinder (1), sliding connection has circular shape mounting panel (12) in spout (11), the mid-mounting of mounting panel (12) has joint (13), pjncture needle (3) are connected with joint (13), be equipped with spacing nail (8) on push rod (4), the middle part of apron (9) is equipped with the circular shape through-hole, the avris of through-hole is equipped with breach (10) of two symmetries, the inner chamber fixedly connected with baffle (2) of cylinder (1), be connected with spring (7) between baffle (2) and joint (13).

2. An obstetric rupture needle as set forth in claim 1, wherein: the left end of cylinder (1) seals and is equipped with round hole (5) in the middle part, the inner chamber left end bonding of cylinder (1) has rubber buffer (15), rubber buffer (15) are located round hole (5) department.

3. An obstetric rupture needle according to claim 1 or 2, characterized in that: the diameter of the puncture needle (3) is smaller than that of the round hole (5), the puncture needle (3) and the axle center of the round hole (5) are collinear, and the right end of the push rod (4) is connected with a gland (6) in a threaded mode.

4. An obstetric rupture needle as set forth in claim 1, wherein: spring (7) cup joints on push rod (4), the right-hand member that connects (13) is equipped with mounting groove (14), the left end and mounting groove (14) joint of push rod (4), pjncture needle (3) are the hollow needle tubing of metal.

5. An obstetric rupture needle as set forth in claim 1, wherein: the length and width of the notch (10) are larger than those of the limit nail (8), and the needle cylinder (1) is formed by transparent PP plastic injection molding.