CN109663201B

CN109663201B - Disposable cervix dilatation sacculus pipe

Info

Publication number: CN109663201B
Application number: CN201910150795.7A
Authority: CN
Inventors: 张正男; 徐玉茵; 周静; 段书霞; 刘康博; 石沛龙; 刘�东; 韩修恒; 刘帅超; 杨志平
Original assignee: Henan Weipushi Medical Technology Co ltd; Henan Yadu Industrial Co Ltd
Current assignee: Yadu medical technology (Henan) Co., Ltd; Henan Yadu Industrial Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2021-01-29
Anticipated expiration: 2039-02-28
Also published as: CN109663201A

Abstract

The invention relates to a disposable cervix dilatation balloon catheter, which effectively solves the problem that the existing cervix dilatation causes discomfort to patients; the technical scheme includes that the catheter comprises a hemispherical upper end, a first balloon, a second balloon and a third balloon are sequentially arranged outside the upper half section of the catheter from top to bottom, a rotating shaft is arranged in the catheter, two sections of external threads are arranged at the upper end of the rotating shaft, a first piston is arranged on each section of external threads in a spinning mode, a first water injection pipe communicated with a lower end cavity and the second balloon is arranged on the left side pipe wall of the catheter, a second water injection pipe communicated with the first balloon, an upper end cavity, the third balloon and a lower end cavity is arranged on the right side pipe wall of the catheter, a second piston sleeved on the rotating shaft is arranged in the lower end cavity, the second piston is connected with the lower end of the catheter through a pressure spring, winding wheels are arranged on the portions, outside the catheter, of the rotating shaft are provided with pull ropes, and the other ends of the pull.

Description

Disposable cervix dilatation sacculus pipe

Technical Field

The invention relates to the field of medical instruments, in particular to a disposable cervical dilatation balloon catheter.

Background

Cervical dilatation sacculus pipe is applicable to and carries out the mechanical expansion of cervical orifice to the not good cervix of maturity before introducing parturient, cervical dilatation sacculus pipe usually need place in human body a period of time in, the sacculus can oneself the cervix open gradually in this period of time in order to realize the effect of introducing parturient, current cervical dilatation sacculus pipe all adopts disposable notes liquid to prop up the sacculus, this kind of mode is that the direct cervix with the patient of mechanical type is opened, though it is fast to prop up, this kind of propping up mode similar to the rigidity can bring very big discomfort for the patient, consequently, need urgently in the present stage a kind of sacculus pipe that can carry out the flexibility to patient's cervix and prop up.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the disposable cervical dilatation balloon catheter, which effectively solves the problem that the existing cervical dilatation causes discomfort to patients.

The technical scheme for solving the problems comprises a vertically placed catheter with two closed ends, the upper end of the catheter is hemispherical, a first balloon, a second balloon and a third balloon are sequentially arranged outside the upper half section of the catheter from top to bottom, a rotating shaft with the lower end extending out of the catheter is coaxially arranged inside the catheter, a baffle disc is arranged in the catheter and divides the catheter into an upper cavity and a lower cavity which are not communicated with each other, two sections of external threads are arranged on the part of the rotating shaft, which is arranged in the upper cavity, of the rotating shaft, the lengths of the two sections of external threads are the same, the rotating directions of the two sections of external threads are opposite, a first piston is screwed on each section of external threads, the upper cavity is divided into an upper cavity and a lower cavity by the two first pistons, the two first pistons can move in the same direction or in the opposite direction by rotating the rotating shaft, a first water injection pipe is arranged on the left pipe wall of the catheter, the second water injection pipe is communicated with the first balloon, the upper end chamber, the third balloon and the lower end chamber, a second piston sleeved on a rotating shaft is arranged in the lower end chamber, the second piston is connected with the lower end of the guide pipe through a pressure spring, a winding wheel is arranged on the part, outside the guide pipe, of the rotating shaft, a pull rope is arranged on each of the left side and the right side of the winding wheel, and the other end of each pull rope is fixed on the second piston.

The inflatable balloon is novel in concept, ingenious in structure and high in practicability, the balloon does not need to be completely inflated when the inflatable balloon is used by a patient due to the arrangement of the upper end cavity and the lower end cavity, the inflatable balloon can be inflated again when the inflatable balloon is used by the patient, the inflating process is rapid and convenient, and the experience of the patient is better.

Drawings

Fig. 1 is a front sectional view of the balloon of the present invention without infusion.

Fig. 2 is a front sectional view of the first balloon and the third balloon filled with liquid and the second balloon not filled with liquid according to the present invention.

FIG. 3 is a front cross-sectional view of the first, second and third balloons of the present invention fully inflated.

FIG. 4 is a front cross-sectional view of the present invention beginning with the addition of fluid to the first, second and third balloons.

FIG. 5 is a front view of the first, second and third balloons of the present invention fully inflated.

FIG. 6 is an enlarged view of a portion of the area A in FIG. 1 according to the present invention.

Detailed Description

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

As shown in the figures 1 to 6, the invention comprises a vertically placed catheter 1 with two closed ends, the upper end of the catheter 1 is hemispherical, a first balloon 2, a second balloon 3 and a third balloon 4 are sequentially arranged outside the upper half section of the catheter 1 from top to bottom, a rotating shaft 5 with the lower end extending out of the catheter 1 is coaxially arranged inside the catheter 1, a baffle disc 6 is arranged in the catheter 1, the baffle disc 6 divides the catheter 1 into an upper cavity and a lower cavity which are not communicated with each other, the part of the rotating shaft 5 arranged in the upper cavity is provided with two sections of external threads which are arranged up and down, the lengths of the two sections of external threads are the same and opposite, a first piston 7 is spirally arranged on each section of external threads, the upper cavity is divided into an upper cavity and a lower cavity by the two first pistons 7, the two first pistons 7 can move in the same direction or in the opposite direction by rotating the rotating shaft 5, a first water injection pipe 8 is arranged in the interlayer of the left side pipe wall of the catheter 1, and, a second water injection pipe 9 is arranged in an interlayer of the right pipe wall of the catheter 1, the second water injection pipe 9 is communicated with the first balloon 2, the upper end chamber, the third balloon 4 and the lower end chamber, a second piston 10 sleeved on the rotating shaft 5 is arranged in the lower end chamber, the second piston 10 is connected with the lower end of the catheter 1 through a pressure spring 11, a winding wheel 12 which rotates synchronously with the rotating shaft 5 is arranged at the part of the rotating shaft 5, which is arranged outside the catheter 1, a pull rope 13 is respectively arranged at the left side and the right side of the winding wheel 12, and the other end of the pull rope 13 is fixed on the second piston 10.

In order to facilitate the rotation and fixation of the winding wheel 12, a first sliding groove 14 is formed in the inner edge surface of the winding wheel 12, a first sliding rail 15 matched with the first sliding groove 14 is arranged on the outer circumferential surface of the rotating shaft 5, the winding wheel 12 can axially slide along the rotating shaft 5, a pin 16 is arranged on the lower end surface of the guide pipe 1, a plurality of positioning holes 17 matched with the pin 16 are uniformly distributed in the circumference of one end, close to the lower end surface of the guide pipe 1, of the winding wheel 12, a shifting wheel 18 is coaxially fixed on the lower end surface of the winding wheel 12, the fact that the shifting wheel 18 can be rotated to drive the winding wheel 12 to rotate when the pin 16 is separated from the positioning holes 17 can be achieved through the matching of the pin 16 and.

In order to realize that the lower end of the pull rope 13 is conveniently wound on the winding wheel 12, the left side and the right side of the winding wheel 12 are respectively provided with a wire conduit 19 matched with the pull rope 13 on the corresponding side, and the lower end of the pull rope 13 is changed in direction through the wire conduit 19 so as to facilitate the winding of the pull rope 13 on the winding wheel 12.

In order to facilitate the fixation of the second piston 10 and the pull rope 13, a mounting plate 20 is fixed at the lower end of the second piston 10, and the upper end of the rope is fixedly connected with the mounting plate 20.

In order to realize that the first pistons 7 can only move up and down but can not rotate, each first piston 7 is provided with a second sliding groove, and the inner wall of the guide pipe 1 is provided with a second sliding rail 21 matched with the second sliding grooves.

In order to facilitate the positioning of the first balloon 2 and the third balloon 4, the first balloon 2 and the third balloon 4 are expanded to be conical, and the conical surfaces of the first balloon 2 and the third balloon 4 are opposite.

First water injection pipe 8 is located near fender dish 6 position with the intercommunication mouth of lower extreme cavity, and second water injection pipe 9 is located pipe 1 upper end position with upper end cavity intercommunication mouth, and second water injection pipe 9 is located near fender dish 6 position with lower extreme cavity intercommunication mouth, consequently first piston 7 and second piston 10 can not hinder its intercommunication mouth that corresponds when the motion.

The initial state of the device is that the two first pistons 7 are located in the middle of the upper end cavity, the upper end cavity and the lower end cavity are in the maximum space state at the moment, the second piston 10 moves to the lowest end position of the catheter 1, the pressure spring 11 is compressed and enables the catheter to have the rebound tendency and the elastic potential energy, and the first balloon 2, the second balloon 3 and the third balloon 4 are in the non-support state at the moment.

The device is placed at the position of the cervix of a patient and is ensured, the first balloon 2 is positioned in the cervix, the second balloon 3 is positioned at the cervix, the third balloon 4 is positioned outside the cervix, at the moment, the normal saline is injected through the second water injection pipe 9, the second water injection pipe 9 is communicated with the first balloon 2, the upper end cavity, the third balloon 4 and the lower end cavity, therefore, when the normal saline is injected, the lower end cavity, the upper end cavity, the third balloon 4 and the first balloon 2 can all receive the normal saline, the lower end cavity, the upper end cavity, the third balloon 4 and the first balloon 2 are gradually filled with the normal saline, at the moment, the first balloon 2 and the third balloon 4 are separated to position the cervix, then the lower end cavity and the second balloon 3 are injected with the water through the first water injection pipe 8, at the moment, the amount of the normal saline is injected so that the patient feels that the separation is caused to be uncomfortable as a standard, after the water injection is stopped, and the first water injection pipe 9 is closed, at the moment, the second saccule 3 continuously stimulates the cervix of the patient, the cervix of the patient tends to expand continuously after being stimulated, the patient feels that the cervix can expand again after a period of time, the positioning hole 17 on the winding wheel 12 is separated from the pin 16 by pulling the thumb wheel 18 downwards, the pull rope 13 on the winding wheel 12 is loosened by rotating the rotating shaft 5, the physiological saline in the cavity at the lower end is pushed into the second saccule 3 under the reset action of the pressure spring 11 so as to realize the re-expansion of the second saccule 3, meanwhile, when the rotating shaft 5 is rotated, the rotation of the rotating shaft 5 drives the two first pistons 7 to move backwards through the threads with the opposite rotating directions at the upper end and the lower end, and at the moment, the upper end cavity and the lower end cavity are both extruded so as to realize that the physiological saline in the upper end cavity and the lower end cavity is extruded to the first saccule 2 and the third saccule 4 so as to increase the, can effectual realization first sacculus 2 and the expansion of second sacculus 3 when second sacculus 3 rises to guarantee that two sacculus volumes can not make second sacculus 3 not hard up.

Compared with the traditional balloon dilatation catheter 1, the device has the following advantages:

1. this device contrast traditional sacculus pipe 1 realize prestoring the normal saline of secondary expansion earlier to the upper end cavity and the lower extreme cavity in, treat after a period of stimulation patient's cervix open more time in realizing through rotating shaft 5 that two first pistons 7 move dorsad and extrude the normal saline in upper end cavity and the lower extreme cavity respectively and enter into first sacculus 2 and third sacculus 4 in, loosen second piston 10 simultaneously and make and realize under the reset action of pressure spring 11 that the liquid that second piston 10 extrudes the cavity of lower extreme gets into second sacculus 3 this processes and need not add the normal saline feed liquor drive outward, puerpera self condition adjusts simultaneously, save medical personnel manual notes liquid, it is convenient to save time.

2. The volume normal saline in the upper end cavity and the lower extreme cavity in this device passes through the extrusion of screw thread drive's first piston 7, because first sacculus 2 is located uterus, the two space usable range is big in third sacculus 4 is located the birth canal, the extrusion of normal saline is realized through the reset action of pressure spring 11 to second sacculus 3, this extrusion process power comes from the reset of pressure spring 11, the process that resets of pressure spring 11 is a flexibility and resets, this process makes second sacculus 3 can be more comfortable when being propped up the time-out patient.

3. The opening of the uterine opening at the initial stage of arranging the device in a human body is small, so that the first balloon 2 and the third balloon 4 can be fixed to the second balloon 3 without being very large, the first balloon 2 and the third balloon 4 can also be increased along with the increase of the second balloon 3, and the second balloon 3 is always positioned in the process, so that the device is more humanized, and the patient is more comfortable and the device is effectively prevented from being separated during secondary expansion.

Claims

1. A disposable cervix dilatation balloon catheter comprises a vertically placed catheter (1) with two closed ends, and is characterized in that the upper end of the catheter (1) is hemispherical, a first balloon (2), a second balloon (3) and a third balloon (4) are sequentially arranged outside the upper half section of the catheter (1) from top to bottom, a rotating shaft (5) with the lower end extending out of the catheter (1) is coaxially arranged inside the catheter (1), a baffle disc (6) is arranged in the catheter (1), the baffle disc (6) divides the catheter (1) into an upper cavity and a lower cavity which are not communicated with each other, two sections of external threads which are arranged up and down are arranged on the part of the upper cavity arranged in the rotating shaft (5), the lengths of the two sections of external threads are the same, the rotating directions of the two sections of external threads are opposite, a first piston (7) is arranged on each section of external thread in a rotating manner, and the upper cavity is divided, the two first pistons (7) can move in the same direction or in the opposite direction by rotating the rotating shaft (5), a first water injection pipe (8) is arranged in the interlayer of the left pipe wall of the catheter (1), the first water injection pipe (8) is communicated with the lower end cavity and the second balloon (3), a second water injection pipe (9) is arranged in the interlayer of the right pipe wall of the catheter (1), the second water injection pipe (9) is communicated with the first balloon (2) and the upper end cavity, the third sacculus (4) is communicated with the lower end cavity, a second piston (10) sleeved on the rotating shaft (5) is arranged in the lower end cavity, the second piston (10) is connected with the lower end of the guide pipe (1) through a pressure spring (11), a winding wheel (12) synchronously rotating with the rotating shaft (5) is arranged on the part, outside the guide pipe (1), of the rotating shaft (5), a pull rope (13) is arranged on each of the left side and the right side of the winding wheel (12), and the other end of the pull rope (13) is fixed on the second piston (10).

2. The disposable cervical dilatation balloon catheter according to claim 1, wherein a first sliding groove (14) is formed in an inner peripheral surface of the winding wheel (12), a first sliding rail (15) matched with the first sliding groove (14) is formed in an outer peripheral surface of the rotating shaft (5), the winding wheel (12) can slide axially along the rotating shaft (5), a pin (16) is arranged on a lower end surface of the catheter (1), a plurality of positioning holes (17) matched with the pin (16) are uniformly distributed in the circumference of one end of the winding wheel (12) close to the lower end surface of the catheter (1), and a shifting wheel (18) is coaxially fixed on the lower end surface of the winding wheel (12).

3. The disposable cervical dilatation balloon catheter according to claim 1, wherein the wire winding wheel (12) is provided with a wire conduit (19) on each of the left and right sides to be matched with the corresponding side pulling rope (13).

4. The disposable cervical dilation balloon catheter according to claim 1, wherein a mounting plate (20) is fixed to a lower end of the second piston (10), and an upper end of the pull rope is fixedly connected to the mounting plate (20).

5. The disposable cervical dilatation balloon catheter according to claim 1, wherein each first piston (7) is provided with a second sliding slot, and the inner wall of the catheter (1) is provided with a second sliding rail (21) matched with the second sliding slot.

6. The single-use cervical dilation balloon catheter according to claim 1, wherein the first balloon (2) and the third balloon (4) are tapered after being expanded, and the tapered surfaces of the first balloon (3) and the third balloon (4) are opposite.

7. The disposable cervical dilatation balloon catheter according to claim 1 wherein the communication port of the first water injection tube (8) with the lower end cavity is located near the baffle disc (6), the communication port of the second water injection tube (9) with the upper end cavity is located near the upper end of the catheter (1), and the communication port of the second water injection tube (9) with the lower end cavity is located near the baffle disc (6).