CN216652422U

CN216652422U - Membrane rupture device for lying-in woman

Info

Publication number: CN216652422U
Application number: CN202122710835.4U
Authority: CN
Inventors: 施凤涟
Original assignee: Zhengzhou Central Hospital
Current assignee: Zhengzhou Central Hospital
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-06-03
Anticipated expiration: 2031-11-08

Abstract

A puerpera membrane rupturing device, which effectively solves the problems that a sharp puncture needle of a conventional membrane rupturing device for obstetrics and gynecology causes damage to an birth canal and the birth canal is not easy to be stretched; the device comprises a cylinder with left and right axial directions, wherein a transmission shaft is coaxially and rotatably connected in the cylinder, the right end of the transmission shaft penetrates through the cylinder, two oval cams are coaxially arranged at the left end of the transmission shaft, the projections of the two cams on a projection plane perpendicular to the axial direction of the transmission shaft are in a cross shape, limiting grooves which are the same in shape and have openings facing left are formed in the cams, four L-shaped slide bars are slidably connected in the cylinder, the projections of the four slide bars on the projection plane perpendicular to the axial direction of the transmission shaft are in a cross shape, the right ends of the slide bars are inserted into the limiting grooves on the corresponding sides of the slide bars, the free ends of the slide bars penetrate through the cylinder and are provided with arc-shaped plates, a T-shaped shaft is coaxially and slidably connected in the transmission shaft, the transmission shaft can rotate along with the rotation of the T-shaped shaft, and a film breaking needle is arranged at the left end of the T-shaped shaft; the utility model has the advantages of ingenious structure and convenient use.

Description

Membrane rupture device for lying-in woman

Technical Field

The utility model relates to the technical field of obstetrics and gynecology, in particular to a membrane rupture device for a lying-in woman.

Background

The artificial membrane rupture is a common induced labor mode in the natural delivery process, and is a method for tearing amnion at the uterine opening in an artificial way so as to observe the color of amniotic fluid, thereby strengthening uterine contraction and shortening the labor process, which is one of the common medical intervention means for promoting the labor process in obstetrics and gynecology department.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a puerpera membrane rupturing device, which effectively solves the problems that a sharp puncture needle of a conventional obstetrics and gynecology membrane rupturing device can damage a birth canal and the birth canal is not easy to be stretched.

The technical scheme includes that the device comprises a left-right axial cylinder, a transmission shaft is coaxially and rotatably connected in the cylinder, the right end of the transmission shaft penetrates through the cylinder, two oval cams are coaxially arranged at the left end of the transmission shaft, the projections of the two cams on a projection plane perpendicular to the axial direction of the transmission shaft are in a cross shape, limiting grooves which are identical in shape and have openings facing to the left are formed in the cams, four L-shaped sliding rods are slidably connected in the cylinder, the projections of the four sliding rods on the projection plane perpendicular to the axial direction of the transmission shaft are in a cross shape, the right ends of the sliding rods are inserted into the limiting grooves on the corresponding sides of the sliding rods, the free ends of the sliding rods penetrate through the cylinder and are provided with arc-shaped plates, a T-shaped shaft is coaxially and slidably connected in the transmission shaft, the transmission shaft can rotate along with the rotation of the T-shaped shaft, and a film breaking needle is arranged at the left end of the T-shaped shaft.

The utility model has the advantages of ingenious structure and convenient use, avoids the damage to the birth canal in the process of membrane rupture, is convenient for strutting the birth canal and reduces the operation difficulty of medical personnel.

Drawings

Fig. 1 is an isometric view of the present invention.

FIG. 2 is a front elevational perspective view, in full section, of the present invention.

FIG. 3 is a left side elevational view, in full section, of the present invention.

Fig. 4 is a cut-away left isometric view of the present invention.

FIG. 5 is a left side elevational view of the present invention with the barrel removed.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The device is characterized by being provided by figures 1 to 5, including a left-right axial cylinder 1, a transmission shaft 2 is coaxially connected in the cylinder 1 in a rotating mode, the right end of the transmission shaft 2 penetrates through the cylinder 1, two oval cams 3 are coaxially arranged at the left end of the transmission shaft 2, the projections of the two cams 3 on an axial projection surface perpendicular to the transmission shaft 2 are in a cross shape, a limiting groove 4 which is the same as the cam in shape and has an opening facing to the left is formed in each cam 3, four L-shaped sliding rods 5 are slidably connected in the cylinder 1, the projections of the four sliding rods 5 on the axial projection surface perpendicular to the transmission shaft 2 are in the cross shape, the right end of each sliding rod 5 is inserted into the limiting groove 4 on the corresponding side, the free end of each sliding rod 5 penetrates through the cylinder 1 and is provided with an arc-shaped plate 6, a T-shaped shaft 7 is coaxially slidably connected in the transmission shaft 2, the transmission shaft 2 can rotate along with the rotation of the T-shaped shaft 7, and a membrane breaking needle 8 is arranged at the left end of the T-shaped shaft 7.

In order to enable the transmission shaft 2 to rotate along with the rotation of the T-shaped shaft 7, a rectangular groove is formed in the transmission shaft 2, and a rectangular block 9 inserted into the rectangular groove is arranged on the outer edge surface of the T-shaped shaft 7.

In order to limit the transmission shaft 2, two limiting holes 10 are formed in the inner side wall of the cylinder 1, a connecting line between the two limiting holes 10 and the axis of the transmission shaft 2 is 90 degrees, a sliding cylinder 11 located in the cylinder 1 is arranged on the transmission shaft 2, a limiting column 12 is connected in the sliding cylinder 11 in a sliding mode, the free end of the limiting column 12 can be inserted into the limiting holes 10, and the lower end of the limiting column 12 is connected with the bottom of the sliding cylinder 11 through a pressure spring.

In order to facilitate the resetting of the T-shaped shaft 7, the T-shaped shaft 7 is sleeved with a spring positioned between the stepped surface and the transmission shaft 2.

In order to make the membrane breaking needle 8 pierce the amnion smoothly, the left end of the cylinder 1 is a semi-sphere and is provided with a round hole 13 which is communicated with the left and the right, and the membrane breaking needle 8 can extend out of the round hole 13.

In order to achieve better use effect, the maximum radial distance of the left end of the cylinder 1 is larger than the maximum outer diameter of a circle formed by the arc-shaped plates 6 in the non-unfolded state.

In order to reduce the discomfort of the lying-in woman, the outer edge surface of the cylinder 1 is provided with a silica gel pad.

When the utility model is used, the initial state is that the limiting column 12 is inserted into the limiting hole 10 at the upper side, and the arc-shaped plate 6 is in the undeployed state; the cylinder 1 is pushed leftwards to insert the cylinder 1 into the birth canal of a lying-in woman, when the left end of the cylinder 1 is contacted with the amnion, the cylinder 1 is stopped to be pushed, the T-shaped rod is held to rotate clockwise, the T-shaped rod drives the transmission shaft 2 to rotate clockwise through the rectangular block 9 and the rectangular groove, the transmission shaft 2 drives the sliding barrel 11 and the limiting column 12 to rotate clockwise, so that the limiting column 12 slides out of the limiting hole 10 and compresses the pressure spring, the transmission shaft 2 drives the cam 3 on the left side to rotate clockwise, the cam 3 on the left side drives the two slide bars 5 on the left side to move back and forth through the limiting groove 4, the two slide bars 5 on the left side respectively drive the two arc plates 6 on the corresponding side to move back and forth to prop open the birth canal, the cam 3 on the right side is driven to rotate clockwise by the transmission shaft 2, the cam 3 on the right side drives the two slide bars 5 on the right side to move back and forth through the limiting groove 4, the two arc plates 6 on the corresponding side are respectively driven to move back and forth to open the birth canal, when the T-shaped rod drives the transmission shaft 2 to rotate 90 degrees clockwise, the limiting column 12 is inserted into the limiting hole 10 on the right side under the action of the pressure spring, the transmission shaft 2 cannot rotate at the moment, the birth canal is expanded to the maximum state by the four arc-shaped plates 6, then the T-shaped rod is pushed leftwards and compresses the spring, the T-shaped rod drives the membrane breaking needle 8 to extend out of the round hole 13 and puncture the amnion, the T-shaped rod is loosened, the T-shaped rod moves rightwards under the action of the spring to move into the cylinder 1, and membrane breaking is completed;

then anticlockwise rotation T shape pole, T shape pole drives transmission shaft 2 anticlockwise rotation, make transmission shaft 2 drive spacing post 12 through slide cartridge 11 and follow the roll-off in spacing hole 10, remove the spacing to transmission shaft 2, transmission shaft 2 drives two cams 3 anticlockwise rotations make about two sets of slide bars 5 two liang of relative slip, four slide bars 5 drive 6 two liang of relative slip of arc, when T shape pole anticlockwise rotation 90, spacing post 12 inserts in the spacing hole 10 of upside under the effort of pressure spring, transmission shaft 2 can not take place to rotate this moment, four arc 6 get back to initial condition, then pull slide cartridge 11 right, it can to shift out slide cartridge 11 from the birth canal.

The utility model has simple structure, convenient operation, novel concept and strong practicability, is provided with the transmission shaft, the T-shaped rod and the membrane breaking needle, can push the T-shaped rod to drive the membrane breaking needle to move, is convenient for doctors to operate to break membranes of puerpera, and is provided with the cam, the slide bar and the arc plates, the cam can rotate by rotating the transmission shaft, so that the four arc plates are unfolded, the birth canal can be conveniently opened, the damage to the birth canal in the membrane breaking process is avoided, and the operation difficulty of medical personnel is reduced.

Claims

1. A membrane rupturing device for a lying-in woman comprises a left axial cylinder (1) and a right axial cylinder (1), and is characterized in that a transmission shaft (2) is coaxially and rotatably connected in the cylinder (1), the right end of the transmission shaft (2) penetrates through the cylinder (1), two oval cams (3) are coaxially arranged at the left end of the transmission shaft (2), the projections of the two cams (3) on an axial projection surface vertical to the transmission shaft (2) are cross-shaped, limiting grooves (4) which are the same as the cams in shape and have openings facing to the left are formed in the cams (3), four L-shaped sliding rods (5) are slidably connected in the cylinder (1), the projections of the four sliding rods (5) on the axial projection surface vertical to the transmission shaft (2) are cross-shaped, the right ends of the sliding rods (5) are inserted into the limiting grooves (4) on the corresponding sides of the sliding rods, the free ends of the sliding rods (5) penetrate through the cylinder (1) and are provided with arc-shaped plates (6), and T-shaped shafts (7) are coaxially and slidably connected in the transmission shaft (2), the transmission shaft (2) can rotate along with the rotation of the T-shaped shaft (7), and the left end of the T-shaped shaft (7) is provided with a membrane breaking needle (8).

2. The puerpera membrane rupture device according to claim 1, wherein a rectangular groove is formed in the transmission shaft (2), and a rectangular block (9) inserted into the rectangular groove is arranged on the outer edge surface of the T-shaped shaft (7).

3. The puerpera membrane rupturing device according to claim 1, wherein two limiting holes (10) are formed in the inner side wall of the cylinder (1), a connecting line between the two limiting holes (10) and the axis of the transmission shaft (2) is 90 degrees, a sliding cylinder (11) located in the cylinder (1) is arranged on the transmission shaft (2), a limiting column (12) is connected in the sliding cylinder (11) in a sliding mode, the free end of the limiting column (12) can be inserted into the limiting holes (10), and the lower end of the limiting column (12) is connected with the bottom of the sliding cylinder (11) through a pressure spring.

4. A device for breaking membranes of parturient according to claim 1, characterized in that the T-shaped shaft (7) is fitted with a spring between its step surface and the transmission shaft (2).

5. The device for breaking membranes of lying-in women according to claim 1, characterized in that the left end of the cylinder (1) is a semi-sphere and is provided with a left and right through round hole (13), and the membrane breaking needle (8) can extend out of the round hole (13).

6. A puerperal membrane-rupturing device according to claim 1, wherein the maximum radial distance of the left end of the cylinder (1) is larger than the maximum outer diameter of the circle formed by the arc-shaped plates (6) in the non-unfolded state.

7. A puerperal membrane rupture device according to claim 1, characterized in that the outer edge surface of the cylinder (1) is provided with a silica gel pad (14).