Disposable cervical dilatation balloon catheter and assembling method thereof

Abstract

The invention discloses a disposable cervical dilatation balloon catheter and an assembling method thereof, and belongs to the technical field of cervical dilatation appliances, the disposable cervical dilatation balloon catheter comprises a body and a pressurizing system, the body comprises a dilatation part, a holding part and a pressurizing part, the dilatation part is communicated with the holding part and the pressurizing part, and the pressurizing part is communicated with the holding part. The expanding part and the pressurizing part are both detachably connected with the holding part, the pressurizing part is connected with the pressurizing system, the pressurizing system injects an expanding medium through the pressurizing part, and the expanding medium enters the expanding part through the holding part, so that the expanding part is expanded and enlarged to expand the cervix of a patient. According to the scheme, the structure is simple, assembling is easy, the assembling efficiency can be improved, and the production progress is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of cervical dilation devices, and specifically to a disposable cervical dilation balloon catheter and its assembly method. Background Art

[0002] In gynecological surgeries and examinations such as induced abortion, intrauterine device removal, intrauterine device insertion, hysteroscopy, and cervical preparation before childbirth, cervical dilation tools are required to dilate the cervix. Most of the existing cervical dilation tools are assembled manually, and most of the cervical dilation tools have many components, making manual assembly rather troublesome. When assembling a batch of cervical dilation tools, long-term work is likely to cause fatigue in workers, affecting the assembly efficiency and delaying the production progress. Therefore, a disposable cervical dilation balloon catheter and its assembly method are needed. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a disposable cervical dilation balloon catheter and its assembly method, which has a simple structure and is easy to assemble, can improve the assembly efficiency, and enhance the production progress.

[0004] The above technical objective of the present invention is achieved through the following technical solutions: A disposable cervical dilation balloon catheter and its assembly method, including a body and a pressurizing system. The body includes a dilation part, a holding part, and a pressurizing part. The dilation part is communicated with the holding part and the pressurizing part. Both the dilation part and the pressurizing part are detachably connected to the holding part. The pressurizing part is connected to the pressurizing system. The pressurizing system injects an expansion medium through the pressurizing part, and the expansion medium enters the dilation part through the holding part, causing the dilation part to expand and dilate the patient's cervix.

[0005] In some embodiments, the dilation part includes a plug, a filling guide rod, and a dilation balloon. A through hole is provided on the filling guide rod.

[0006] In some embodiments, the holding part includes a holding rod. The inside of the holding rod is hollow. First and second threaded parts are respectively provided at both ends of the holding rod. The first threaded part is screwed to the plug, and the second threaded part is screwed to the pressurizing part.

[0007] In some embodiments, the pressurizing part includes a connector. A connecting pipe is provided inside the connector. The connecting pipe is inserted into the inside of the holding part to communicate the pressurizing part and the holding part. An assembly method for a disposable cervical dilation balloon catheter, which is applied to the assembly of a disposable cervical dilation balloon catheter, includes the following steps: a. First, the operator connects the holding part and the pressurizing part; b. Secondly, put the dilation balloon over the filling guide rod, and then insert the filling guide rod with the dilation balloon into the plug head; c. Then, the operator places the plug head with the filling guide rod inserted with the dilation balloon in step b into the assembly mechanism, and uses the assembly mechanism to assemble the dilation part; d. Finally, connect the holding part connected to the pressurizing part in step a to the dilation part completed in assembly in step c, and the assembly of the disposable cervical dilation balloon catheter is completed.

[0008] In some embodiments, the assembly mechanism includes a base, a cylinder is installed on the base, a supporting block is arranged below the cylinder on the base, two positioning members are arranged between the cylinder and the supporting block on the base, a fixing groove is arranged on the supporting block, and a pressing rod is arranged on the telescopic part of the cylinder.

[0009] In some embodiments, the positioning member includes a housing, a spring rod is arranged inside the housing, one end of the spring rod is fixedly connected with a first rack, the other end is fixedly connected with a placement plate, a placement groove is arranged on the placement plate, a column gear is arranged inside the housing, a moving rod is slidably connected above the column gear inside the housing, one end of the moving rod is fixedly connected with a limiting plate, the other end is fixedly connected with a second rack, and the column gear meshes with the first rack and the second rack respectively.

[0010] In some embodiments, the housing includes a first part and a second part, three screws are arranged on the first part, a screw hole is arranged at each position corresponding to the three screws on the second part, and the three screws are respectively connected with a screw hole.

[0011] In some embodiments, a groove is arranged at the edge of the first part, a rib is arranged at the edge of the second part, and the rib is matched with the groove.

[0012] In summary, the present invention has the following beneficial effects: The main body of the present invention includes three parts: a dilation part, a holding part, and a pressurizing part. The modular design has a simple structure, and the first thread part and the second thread part are used for quick connection, making the overall assembly convenient and fast, accelerating the assembly rate. At the same time, the installation mechanism is also used to assemble the dilation part. It can not only use the placement plate and the limiting plate of the positioning member in the installation mechanism to cooperate with the cylinder to limit and combine the components of the dilation part, but also increase the probability that the completed combined dilation part jumps out of the placement plate under the action of the spring rod in the positioning member, so as to facilitate the operator to quickly take out the dilation part for combination, further accelerating the assembly of the main body and the production progress. Description of the Drawings

[0013] Figure 1Schematic diagram of the overall structure of the present invention; Figure 2 Exploded view of the overall structure of the present invention; Figure 3 Schematic diagram of the overall structure of the assembly mechanism of the present invention; Figure 4 Schematic diagram of the overall structure of the positioning member of the present invention; Figure 5 Structural cross-sectional view of the first part of the present invention; Figure 6 Structural cross-sectional view of the second part of the present invention; Figure 7 Partial enlarged view of the working state of the present invention.

[0014] In the figure: 1, body; 11, expansion part; 111, plug; 112, filling guide rod; 113, expansion balloon; 114, through hole; 12, holding part; 121, holding rod; 122, first thread part; 123, second thread part; 13, pressurizing part; 131, connection head; 132, connecting pipe; 2, assembly mechanism; 21, base; 22, cylinder; 221, pressure rod; 23, positioning member; 231, housing; 2311, first part; 2312, screw; 2313, rib; 2314, second part; 2315, screw hole; 2316, groove; 232, placement plate; 2321, placement groove; 233, limiting plate; 234, spring rod; 235, first rack; 236, column gear; 237, moving rod; 238, second rack; 24, supporting block; 241, fixing groove. Detailed implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Refer to Figures 1 - 7 , a disposable cervical dilation balloon catheter, comprising a body 1 and a pressurization system. The body 1 includes an expansion part 11, a holding part 12 and a pressurizing part 13. The expansion part 11 is communicated with the holding part 12 and the pressurizing part 13. Both the expansion part 11 and the pressurizing part 13 are detachably connected to the holding part 12. The pressurizing part 13 is connected to the pressurization system. The pressurization system injects an expansion medium through the pressurizing part 13. The expansion medium enters the expansion part 11 through the holding part 12, so that the expansion part 11 expands and enlarges to dilate the cervix of the patient.

[0017] In some embodiments, the expansion part 11 includes a plug 111, a filling guide rod 112, and an expansion balloon 113. A through hole 114 is formed in the filling guide rod 112.

[0018] In some embodiments, the holding part 12 includes a holding rod 121. The inside of the holding rod 121 is hollow. First threaded parts 122 and second threaded parts 123 are respectively arranged at two ends of the holding rod 121. The first threaded part 122 is screwed to the plug 111, and the second threaded part 123 is screwed to the pressurizing part 13.

[0019] In some embodiments, the pressurizing part 13 includes a connector 131. A connecting pipe 132 is arranged inside the connector 131. The connecting pipe 132 is inserted into the inside of the holding part 12 to connect the pressurizing part 13 and the holding part 12. Working principle: During use, an operator holds the holding part 12 by hand and sends the expansion part 11 to the cervical orifice of a patient through the holding part 12. Then, a pressurizing system injects an expansion medium into the main body 1. The pressurizing system can be a syringe and the expansion medium can be water, but it is not limited thereto. The expansion medium enters the expansion part 11 through the holding part 12 and enters the expansion balloon 113 from the through hole 114 of the expansion part 11, causing the expansion balloon 113 to expand, thereby realizing the dilation of the cervix.

[0020] An assembly method of a disposable cervical dilation balloon catheter, which is applied to the assembly of a disposable cervical dilation balloon catheter, includes the following steps: a. First, an operator connects the holding part 12 and the pressurizing part 13. b. Secondly, the expansion balloon 113 is sleeved on the filling guide rod 112, and then the filling guide rod 112 sleeved with the expansion balloon 113 is inserted into the plug 111. c. Then, the operator places the plug 111 inserted with the filling guide rod 112 sleeved with the expansion balloon 113 in step b into the assembly mechanism 2, and uses the assembly mechanism 2 to assemble the expansion part 11. d. Finally, the holding part 12 connected to the pressurizing part 13 in step a is connected to the expansion part 11 completed in assembly in step c, that is, the assembly of the disposable cervical dilation balloon catheter is completed.

[0021] In some embodiments, the assembly mechanism 2 includes a base 21. A cylinder 22 is installed on the base 21. A supporting block 24 is arranged below the cylinder 22 on the base 21. Two positioning parts 23 are arranged between the cylinder 22 and the supporting block 24 on the base 21. A fixing groove 241 is arranged on the supporting block 24. A pressing rod 221 is arranged on the telescopic part of the cylinder 22.

[0022] In some embodiments, the positioning member 23 includes a housing 231. A spring rod 234 is disposed inside the housing 231. One end of the spring rod 234 is fixedly connected to a first rack 235, and the other end is fixedly connected to a placement plate 232. A placement groove 2321 is formed on the placement plate 232. A column gear 236 is disposed inside the housing 231. A moving rod 237 is slidably connected above the column gear 236 inside the housing 231. One end of the moving rod 237 is fixedly connected to a limiting plate 233, and the other end is fixedly connected to a second rack 238. The column gear 236 meshes with the first rack 235 and the second rack 238 respectively.

[0023] When assembling the expansion part 11, the operator first sleevs the expansion balloon 113 on the filling guide rod 112, then inserts the two into the plug 111, and then places the three components into the placement groove 2321 of the placement plate 232. A long groove is formed on both the placement groove 2321 and the supporting block 24. To facilitate the movement of the filling guide rod 112 sleeved with the expansion balloon 113, when the plug 111 is placed on the placement groove 2321, the operator holds the expansion balloon 113 and the part of the filling guide rod 112 below the plug 111 by hand and slightly pulls downward with force. This can not only make the plug 111 drive the placement plate 232 to move downward, so that the placement groove 2321 enters the fixing groove 241 and is restricted, ensuring the stability during assembly, but also assist when the expansion balloon 113 and the filling guide rod 112 are pressed by the air cylinder 22, improving the speed at which the expansion balloon 113 and the filling guide rod 112 are pressed into the plug 111. Then the placement plate 232 drives the spring rod 234 to work and transform into an extrusion state. The spring rod 234 then drives the first rack 235 to move downward. The movement of the first rack 235 drives the column gear 236 to rotate, so as to Figure 5 For reference, the column gear 236 rotates clockwise due to the first rack 235. Then the column gear 236 drives the second rack 238 to move to the right. The second rack 238 drives the limiting plate 233 to move toward a part of the expansion balloon 113 and the filling guide rod 112 above the plug 111 through the moving rod 237, that is, the two limiting plates 233 are respectively located on both sides of a part of the expansion balloon 113 and the filling guide rod 112 above the plug 111, as shown in Figure 7As shown, it plays a limiting role to prevent the expansion balloon 113 and the filling guide rod 112 from bending when pressed by the air cylinder 22. Finally, the operator controls the air cylinder 22 to drive the pressing rod 221 to move towards the expansion balloon 113 and the filling guide rod 112, presses the expansion balloon 113 and the filling guide rod 112 into the plug 111, then connects the holding part 12 connected to the pressurizing part 13 with the plug 111, thus completing the assembly. After that, the operator releases the hand and no longer holds the expansion balloon 113 and the filling guide rod 112. The entire expansion part 11 bounces up due to the force of the spring rod 234, increasing the probability of the expansion part 11 leaving the placement groove 2321, facilitating the operator to take it, avoiding the operation of the operator taking the plug 111 from the placement groove 2321 in the narrow space between the two positioning parts 23, accelerating the operation efficiency and improving the production rate.

[0024] In some embodiments, the housing 231 includes a first part 2311 and a second part 2314. Three screws 2312 are provided on the first part 2311, and a screw hole 2315 is provided at each position corresponding to the three screws 2312 on the second part 2314. The three screws 2312 are respectively connected to one screw hole 2315. The housing 231 is divided into the first part 2311 and the second part 2314, and is connected by the three screws 2312 and the three screw holes 2315, which is convenient for disassembly and assembly.

[0025] In some embodiments, a rib 2313 is provided at the edge of the first part 2311, and a groove 2316 is formed at the edge of the second part 2314. The rib 2313 cooperates with the groove 2316. The rib 2313 and the groove 2316 can be positioned when the operator assembles the housing 231, ensuring the accurate combination of the first part 2311 and the second part 2314 and improving the assembly efficiency.

[0026] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A disposable cervical dilatation balloon catheter, characterized in that: It includes a main body (1) and a pressurizing system. The main body (1) includes an expansion part (11), a holding part (12), and a pressurizing part (13). The expansion part (11) is communicated with the holding part (12) and the pressurizing part (13). Both the expansion part (11) and the pressurizing part (13) are detachably connected to the holding part (12). The pressurizing part (13) is connected to the pressurizing system. The pressurizing system injects an expansion medium through the pressurizing part (13). The expansion medium enters the expansion part (11) through the holding part (12), causing the expansion part (11) to expand and dilate the patient's cervix.

2. The disposable cervical dilation balloon catheter according to claim 1, wherein: The expansion part (11) includes a plug (111), a filling guide rod (112), and an expansion balloon (113). A through hole (114) is formed on the filling guide rod (112).

3. The disposable cervical dilation balloon catheter according to claim 1, wherein: The holding part (12) includes a holding rod (121). The inside of the holding rod (121) is hollow. First threaded parts (122) and second threaded parts (123) are respectively arranged at two ends of the holding rod (121). The first threaded part (122) is screwed with the plug (111), and the second threaded part (123) is screwed with the pressurizing part (13).

4. The disposable cervical dilation balloon catheter according to claim 1, characterized in that: The pressurizing part (13) includes a connector (131). A connecting pipe (132) is arranged inside the connector (131). The connecting pipe (132) is inserted into the inside of the holding part (12) to communicate the pressurizing part (13) and the holding part (12).

5. A method for assembling a disposable cervical dilation balloon catheter, which is applied to the disposable cervical dilation balloon catheter described in claim 2, and is characterized in that: It includes the following steps: a. First, the operator connects the holding part (12) and the pressurizing part (13). b. Second, the expansion balloon (113) is sleeved on the filling guide rod (112), and then the filling guide rod (112) sleeved with the expansion balloon (113) is inserted into the plug (111). c. Then, the operator places the plug (111) inserted with the filling guide rod (112) sleeved with the expansion balloon (113) in step b into the assembling mechanism (2), and uses the assembling mechanism (2) to assemble the expansion part (11). d. Finally, the holding part (12) connected to the pressurizing part (13) in step a is connected to the expansion part (11) completed in assembling in step c, that is, the assembly of the disposable cervical dilation balloon catheter is completed.

6. The assembly method of a disposable cervical dilation balloon catheter according to claim 5, characterized in that: The assembling mechanism (2) includes a base (21). A cylinder (22) is installed on the base (21). A supporting block (24) is arranged below the cylinder (22) on the base (21). Two positioning members (23) are arranged between the cylinder (22) and the supporting block (24) on the base (21). A fixing groove (241) is arranged on the supporting block (24). A pressing rod (221) is arranged on the telescopic part of the cylinder (22).

7. The assembling method of a disposable cervical dilatation balloon catheter according to claim 6, characterized in that: The positioning member (23) includes a housing (231). A spring rod (234) is arranged inside the housing (231). One end of the spring rod (234) is fixedly connected to a first rack (235), and the other end is fixedly connected to a placement plate (232). A placement groove (2321) is arranged on the placement plate (232). A column gear (236) is arranged inside the housing (231). A moving rod (237) is slidably connected above the column gear (236) inside the housing (231). One end of the moving rod (237) is fixedly connected to a limiting plate (233), and the other end is fixedly connected to a second rack (238). The column gear (236) meshes with the first rack (235) and the second rack (238) respectively.

8. The assembling method of a disposable cervical dilatation balloon catheter according to claim 7, characterized in that: The housing (231) includes a first part (2311) and a second part (2314). Three screws (2312) are arranged on the first part (2311). A screw hole (2315) is arranged at each position corresponding to the three screws (2312) on the second part (2314). The three screws (2312) are respectively connected to one screw hole (2315).

9. The assembly method of a disposable cervical dilatation balloon catheter according to claim 8, wherein: A convex strip (2313) is arranged at the edge of the first part (2311), and a groove (2316) is formed at the edge of the second part (2314). The convex strip (2313) is matched with the groove (2316).

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