Cervical dilation balloon catheter capable of being indwelled

Abstract

The invention discloses an indwelling cervical dilatation balloon catheter, which belongs to the technical field of medical apparatus and instruments, and is characterized by comprising a handle, a connecting assembly is arranged in the handle, one end of the connecting assembly is connected with a filling assembly, the other side of the connecting assembly is connected with a one-way valve, and the one-way valve is externally connected with a pressurization system. The handle comprises a first fixing area, a storage area and a second fixing area, a handheld part is arranged between the storage area and the second fixing area, the second fixing area is connected with the one-way valve, and the pressurization system flushes in media through the one-way valve. And a medium enters the filling assembly through the connecting assembly to expand the cervix of a patient. According to the scheme, disassembly and assembly can be rapidly carried out, and production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an indwellable cervical dilation balloon catheter. Background Art

[0002] In the medical field, cervical dilation is a common operation in gynecological surgeries and examinations, such as artificial abortion, IUD removal, IUD insertion, hysteroscopy, and cervical preparation before delivery. With the advancement of science and technology, cervical dilation is performed using a disposable cervical dilation balloon catheter, which dilates the cervix by filling a balloon. However, the existing disposable cervical dilation balloon catheter has many small parts during assembly, which is inconvenient to assemble and easily miss parts, resulting in slower production efficiency. It is also inconvenient to disassemble and assemble during quality inspection, which greatly affects the production progress. In view of this, an indwellable cervical dilation balloon catheter is proposed. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide an indwellable cervical dilatation balloon catheter that can be quickly disassembled and assembled to improve production efficiency.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: an indwellable cervical dilatation balloon catheter, comprising a handle, one side of the handle is not closed, a connecting component is arranged inside the handle, one end of the connecting component is connected to a filling component, and the other side is connected to a one-way valve, the one-way valve is externally connected to a pressurizing system, the handle comprises a first fixed area, a receiving area and a second fixed area, a hand-held portion is arranged between the receiving area and the second fixed area, the second fixed area is connected to the one-way valve, the pressurizing system flushes a medium through the one-way valve, and the medium enters the filling component through the connecting component to dilate the patient's cervix.

[0005] In some embodiments, the diameter of the handheld portion is smaller than that of the second fixing area, and the outer surface of the handheld portion is arc-shaped.

[0006] In some embodiments, the one-way valve includes a first connecting portion, an input port, and an output port, and a clamping ring is disposed between the first connecting portion and the input port.

[0007] In some embodiments, both sides of the clamping ring are provided with bevel chamfers. In some embodiments, the connection assembly includes a connection hose, one end of which is sleeved with the one-way valve, and the other end of which is sleeved with a connection piece, and the end of the connection piece is connected to a fixing head.

[0008] In some embodiments, the connecting hose includes a straight tube, one end of the straight tube is connected to a first conical tube, the end of the first conical tube is connected to a first cylindrical tube, the other end of the straight tube is connected to a second conical tube, the end of the second conical tube is connected to a second cylindrical tube, the first conical tube and the first cylindrical tube are connected to the one-way valve, the second conical tube and the second cylindrical tube are connected to the connecting piece, and convex rings are provided between the first conical tube and the first cylindrical tube and between the second conical tube and the second cylindrical tube.

[0009] In some embodiments, the connector includes a second connecting portion, a threaded portion is provided on one end of the second connecting portion close to the fixing head, a positioning ring is provided between the second connecting portion and the threaded portion, and the threaded portion is threadedly connected to the fixing head.

[0010] In some embodiments, a positioning buckle is provided near the middle of the straight tube, and a slot is provided on the positioning buckle.

[0011] In some embodiments, the filling component includes a filling guide rod, which is connected to the connecting component, a balloon is sleeved on the filling guide rod, a covering ring is provided at one end of the filling guide rod close to the connecting component, and a through hole is opened on the filling guide rod at the position of the covering ring.

[0012] In summary, the present invention has the following beneficial effects: The present invention is provided with a connecting component, through which the one-way valve and the connecting piece are firmly connected through the connecting hose of the connecting component, and the connecting piece of the connecting component is quickly connected to the fixed head, and the first cylindrical tube and the second cylindrical tube of the connecting hose are used to completely fit the one-way valve and the connecting piece, thereby improving the overall sealing performance and being able to be quickly installed in the handle for fixation, and also being able to be quickly removed from the handle when quality inspection and retention are required, thereby accelerating the production progress and improving the operation speed; at the same time, the fixed head is used to prevent the device from excessively sliding into the body and causing damage to the uterus. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a disassembled diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of part of the structure of the present invention; Figure 4 It is a cross-sectional view of the overall structure of the fixing head of the present invention; Figure 5 It is a schematic diagram of the structure of the retention state part of the present invention.

[0014] In the figure: 1. handle; 11. first fixing area; 12. storage area; 13. second fixing area; 14. hand-held part; 2. one-way valve; 21. first connecting part; 22. input port; 23. output port; 24. clamping ring; 3. connecting assembly; 31. connecting hose; 311. straight tube; 312. first conical tube; 313. first cylindrical tube; 314. second conical tube; 315. second cylindrical tube; 316. positioning buckle; 32. connecting piece; 321. second connecting part; 322. threaded part; 323. positioning ring; 33. fixing head; 4. filling assembly; 41. filling guide rod; 42. balloon; 43. covering ring; 44. through hole. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 5 A retainable cervical dilatation balloon catheter comprises a handle 1, one side of the handle 1 is not closed, a connecting component 3 is arranged inside the handle 1, one end of the connecting component 3 is connected to a filling component 4, and the other side is connected to a one-way valve 2, the one-way valve 2 is externally connected to a pressurizing system, the handle 1 comprises a first fixing area 11, a receiving area 12 and a second fixing area 13, a hand-held portion 14 is arranged between the receiving area 12 and the second fixing area 13, the second fixing area 13 is connected to the one-way valve 2, the pressurizing system flushes a medium through the one-way valve 2, and the medium enters the filling component 4 through the connecting component 3 to dilate the patient's cervix.

[0017] In some embodiments, the diameter of the hand-held portion 14 is smaller than that of the second fixing area 13 , and the outer surface of the hand-held portion 14 is arc-shaped.

[0018] In some embodiments, the one-way valve 2 includes a first connecting portion 21 , an input port 22 , and an output port 23 , and a clamping ring 24 is fixedly connected between the first connecting portion 21 and the input port 22 .

[0019] In some embodiments, both sides of the snap ring 24 are provided with chamfers. In some embodiments, the connection assembly 3 includes a connection hose 31 , one end of which is sleeved with the one-way valve 2 , and the other end of which is sleeved with a connection piece 32 , and the end of the connection piece 32 is connected to a fixing head 33 .

[0020] In some embodiments, the connecting hose 31 includes a straight tube 311, one end of the straight tube 311 is connected to a first conical tube 312, the end of the first conical tube 312 is connected to a first cylindrical tube 313, the other end of the straight tube 311 is connected to a second conical tube 314, the end of the second conical tube 314 is connected to a second cylindrical tube 315, the first conical tube 312 and the first cylindrical tube 313 are connected to the one-way valve 2, the second conical tube 314 and the second cylindrical tube 315 are connected to the connecting piece 32, and convex rings are provided between the first conical tube 312 and the first cylindrical tube 313 and between the second conical tube 314 and the second cylindrical tube 315.

[0021] In some embodiments, the connector 32 includes a second connecting portion 321 , a threaded portion 322 is provided on one end of the second connecting portion 321 close to the fixing head 33 , a positioning ring 323 is provided between the second connecting portion 321 and the threaded portion 322 , and the threaded portion 322 is threadedly connected to the fixing head 33 .

[0022] In some embodiments, a positioning buckle 316 is provided near the middle of the straight tube 311 , and a slot is provided on the positioning buckle 316 .

[0023] In some embodiments, the filling component 4 includes a filling guide rod 41, which is connected to the connecting component 3. A balloon 42 is sleeved on the filling guide rod 41. A covering ring 43 is provided at one end of the filling guide rod 41 close to the connecting component 3. A through hole 44 is opened on the filling guide rod 41 at the position of the covering ring 43. The covering ring 43 can prevent the through hole 44 from being blocked by impurities.

[0024] Working principle: During assembly, the operator first sleeves the balloon 42 on the filling guide rod 41, and then uses an external power mechanism to push the filling guide rod 41 with the balloon 42 into the fixed head 33 for clamping and fixing. The external power mechanism can be an existing propeller with a pushing function, etc., but is not limited to this. Then, the two ends of the connecting hose 31 are respectively sleeved on the one-way valve 2 and the connecting piece 32, ensuring that the first cylindrical tube 313 is sleeved on the first connecting portion 21 of the one-way valve 2, and the end of the first cylindrical tube 313 is pulled over the clamping ring 24, so that the end of the first cylindrical tube 313 is clamped and fitted by the clamping ring 24 to improve the firmness of the sleeve and ensure the sealing between the one-way valve 2 and the connecting hose 31, while the first conical tube 312 is wrapped around Output port 23, and the first tapered tube 312 can increase the speed of the one-way valve 2 when inputting the medium, increase the expansion rate of the balloon 42, and speed up the operation progress. The connecting hose 31 and the balloon 42 can be made of silicone, but are not limited to this. They all have a certain elasticity. Similarly, the second cylindrical tube 315 at the other end of the connecting hose 31 is sleeved on the second connecting portion 321 of the connecting piece 32, and the end of the second cylindrical tube 315 is pulled over the positioning ring 323 to ensure the sealing and the stability of the sleeve. The second tapered tube 314 wraps the end of the connecting piece 32 away from the threaded portion 322, and then the threaded portion 322 of the connecting piece 32 is used to screw and fix it with the fixed head 33, that is, the one-way valve 2 is connected to the filling component 4 through the connecting component 3, and finally the straight tube The straight tube 311 is placed in the storage area 12. When the straight tube 311 is placed in the storage area 12, since the straight tube 311 is smaller than the handle 1, it is difficult to accurately place the straight tube 311 in the storage area 12, and the connector 32 and the one-way valve 2 respectively sleeved at both ends of the straight tube 311 will cause the straight tube 311 to swing when placed, and it needs to be aligned multiple times to be accurately placed in the storage area 12, which is not easy to operate. The operator pre-positions the straight tube 311 into the handle 1 through the positioning buckle 316, and then inserts the first connecting portion 21 sleeved with the first cylindrical tube 313 into the second fixing area 13, and inserts the second connecting portion 321 sleeved with the second cylindrical tube 315 into the first fixing area 11, so that fixation can be achieved, thereby improving the assembly efficiency of the device. The whole operation process is simple and convenient, the overall connection sealing is high, the device is easy to disassemble and assemble, and only the connector 32 needs to be unscrewed from the fixed head 33, and the sealing of the connecting hose 31 can be checked by passing gas or liquid and other media into the one-way valve 2. Not only is the assembly simple, but it is also convenient for subsequent quality inspection of the device and improves production efficiency. When in use, the operator holds the hand-held portion 14 on the handle 1, and inserts the filling component 4 and the connecting component 3 into the patient's vagina through the handle 1, so that the fixed head 33 is located at the patient's cervix. The fixed head 33 can prevent the filling component 4 from penetrating too deeply and causing damage to the inner wall of the uterus, and prevent the device from slipping into the body. Then, the pressurization system is used to pass gas or liquid and other media into the filling component 4 through the cooperation of the one-way valve 2.The pressurizing system can be an existing syringe, but is not limited to this. The medium enters the balloon 42 through the through hole 44 at the position of the covering ring 43 to expand the cervical opening, which is convenient for the doctor to examine. During the examination, if the patient needs to move temporarily for something, the operator can pull the one-way valve 2 to the side where the handle 1 is not closed. Due to the limitation of the positioning buckle 316 when pulling it out, the operator will not cause the straight tube 311 to bend quickly due to excessive force when pulling it out, causing the straight tube 311 to drive the connecting piece 32 to be skewed and cause discomfort to the patient. Then the operator takes away the handle 1, and then bends the straight tube 311 so that the input port 22 of the one-way valve 2 faces the fixed head 33, and then snaps the part of the straight tube 311 close to the one-way valve 2 into the card groove of the positioning buckle 316, as shown in the attached figure. Figure 5 As shown, the operator can then push the straight tube 311 close to a part of the one-way valve 2 to allow the one-way valve 2 to slowly enter the patient's vagina, thereby retaining and fixing the one-way valve 2. This not only avoids the connector 32, the connecting hose 31, and part of the one-way valve 2 remaining outside the body and shaking to affect the patient's movements, but also enables the positioning clip 316 to be used to quickly fix the part connected to the one-way valve 2, so that the connecting hose 31 will not be bent and then put into the body, and the elasticity of the connecting hose 31 will cause the vaginal wall to be squeezed when it is reset, thereby improving the patient's comfort.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An indwellable cervical dilatation balloon catheter, characterized in that: The invention comprises a handle (1), one side of which is not closed, a connecting component (3) being arranged inside the handle (1), one end of the connecting component (3) being connected to a filling component (4), and the other side of the connecting component (3) being connected to a one-way valve (2), the one-way valve (2) being externally connected to a pressurizing system, the handle (1) comprising a first fixing area (11), a receiving area (12) and a second fixing area (13), a hand-held portion (14) being arranged between the receiving area (12) and the second fixing area (13), the second fixing area (13) being connected to the one-way valve (2), the pressurizing system flushing a medium through the one-way valve (2), the medium passing through the connecting component (3) and entering the filling component (4) to cause the filling component (4) to expand and enlarge, thereby dilating the patient's cervix.

2. The indwellable cervical dilatation balloon catheter according to claim 1, characterized in that: The diameter of the hand-held portion (14) is smaller than that of the second fixing area (13), and the outer surface of the hand-held portion (14) is arc-shaped.

3. The indwellable cervical dilatation balloon catheter according to claim 1, characterized in that: The one-way valve (2) comprises a first connecting portion (21), an input port (22) and an output port (23), wherein a clamping ring (24) is provided between the first connecting portion (21) and the input port (22).

4. The indwellable cervical dilatation balloon catheter according to claim 3, characterized in that: Both sides of the clamping ring (24) are provided with chamfered surfaces.

5. The indwellable cervical dilatation balloon catheter according to claim 1, characterized in that: The connection assembly (3) comprises a connection hose (31), one end of the connection hose (31) being sleeved with the one-way valve (2), and the other end of the connection hose (31) being sleeved with a connection piece (32), the end of the connection piece (32) being connected to a fixing head (33).

6. The indwellable cervical dilatation balloon catheter according to claim 5, characterized in that: The connecting hose (31) comprises a straight tube (311), one end of the straight tube (311) is connected to a first conical tube (312), the end of the first conical tube (312) is connected to a first cylindrical tube (313), the other end of the straight tube (311) is connected to a second conical tube (314), the end of the second conical tube (314) is connected to a second cylindrical tube (315), the first conical tube (312) and the first cylindrical tube (313) are connected to the one-way valve (2), the second conical tube (314) and the second cylindrical tube (315) are connected to the connecting piece (32), and convex rings are provided between the first conical tube (312) and the first cylindrical tube (313) and between the second conical tube (314) and the second cylindrical tube (315).

7. The indwellable cervical dilatation balloon catheter according to claim 5, characterized in that: The connecting member (32) comprises a second connecting portion (321), a threaded portion (322) being provided at one end of the second connecting portion (321) close to the fixing head (33), a positioning ring (323) being provided between the second connecting portion (321) and the threaded portion (322), and the threaded portion (322) being threadedly connected to the fixing head (33).

8. The indwellable cervical dilatation balloon catheter according to claim 6, characterized in that: A positioning buckle (316) is provided near the middle of the straight tube (311), and a slot is provided on the positioning buckle (316).

9. The indwellable cervical dilatation balloon catheter according to claim 1, characterized in that: The filling assembly (4) comprises a filling guide rod (41), the filling guide rod (41) being connected to the connecting assembly (3), a balloon (42) being sleeved on the filling guide rod (41), a covering ring (43) being provided at one end of the filling guide rod (41) close to the connecting assembly (3), and a through hole (44) being provided on the filling guide rod (41) at the position of the covering ring (43).

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