One-way valve assembling device of uterus dilatation balloon catheter

Abstract

The one-way valve assembling device comprises a base and an air cylinder, a first fixing seat and a second fixing seat are horizontally arranged on the base at intervals, a first positioning groove is formed in the upper end face of the first fixing seat, and the first positioning groove is used for positioning the radial position of the one-way valve; a second positioning groove is formed in the upper end face of the second fixing base and used for positioning the radial position of the elastic sleeve. The air cylinder is arranged on the base, a push head is arranged at the movable end of the air cylinder, the first fixing base is located between the push head and the second fixing base, the annular portion of the elastic sleeve can abut against the side face, close to the first fixing base, of the second fixing base so as to position the axial position of the elastic sleeve, and the push head, the first positioning groove and the second positioning groove are coaxially arranged. The air cylinder is used for driving the pushing head to move in the direction close to the first fixing base so that the pushing head can push the one-way valve to be inserted into the connector. The labor intensity of workers can be reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of one-way valve assembly equipment, and in particular to a one-way valve assembly device for a uterine dilation balloon catheter. Background Technology

[0002] The end of the uterine dilation balloon catheter is equipped with a connector for connecting a one-way valve. The one-way valve is inserted into the connector by an interference fit and is engaged in the annular groove inside the connector by a retaining ring protruding from the outer wall of the one-way valve to position the axial relative position between the one-way valve and the connector. In addition, an elastic sleeve needs to be fitted over the connector to fix the position of the one-way valve. The outer side of the elastic sleeve has an annular part that facilitates force application for assembly. Currently, manual assembly is used. The elastic sleeve needs to be fitted over the connector first, and then the one-way valve needs to be manually aligned with the connector and forcefully inserted into the connector. During insertion, the tension of the elastic sleeve and the connector needs to be overcome, which is labor-intensive and has low assembly efficiency. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention provides a one-way valve assembly device for a uterine dilation balloon catheter, which can reduce manual labor intensity and improve assembly efficiency.

[0004] According to an embodiment of this utility model, a one-way valve assembly device for a uterine dilation balloon catheter is provided, including a base and a cylinder. The base is horizontally spaced with a first fixed seat and a second fixed seat. The upper end face of the first fixed seat has a first positioning groove for positioning the radial position of the one-way valve. The upper end face of the second fixed seat has a second positioning groove for positioning the radial position of an elastic sleeve. The cylinder is disposed on the base, and the movable end of the cylinder is provided with a pusher. The first fixed seat is located between the pusher and the second fixed seat. The first positioning groove extends axially along the pusher to opposite sides of the first fixed seat. The second positioning groove extends axially along the pusher to the side of the second fixed seat near the first fixed seat. The annular portion of the elastic sleeve can abut against the side of the second fixed seat near the first fixed seat to position the axial position of the elastic sleeve. The pusher, the first positioning groove, and the second positioning groove are coaxially arranged. The cylinder is used to drive the pusher to move towards the first fixed seat so that the pusher pushes the one-way valve into the connector.

[0005] This utility model provides a one-way valve assembly device for a uterine dilation balloon catheter, which has at least the following advantages: During assembly, the elastic sleeve is first fitted onto the connector, and then the one-way valve portion is inserted into the connector for pre-assembly. The pre-assembled one-way valve and elastic sleeve are then placed into the first positioning groove and the second positioning groove, respectively. The radial position of the one-way valve is positioned by the first positioning groove, and the radial position of the elastic sleeve is positioned by the second positioning groove. The annular portion of the elastic sleeve abuts against the side of the second fixing seat near the first fixing seat, thus restricting the elastic sleeve from moving away from the first fixing seat, thereby positioning the axial position of the elastic sleeve and simultaneously fixing the axial position of the connector. Since the pusher, the first positioning groove, and the second positioning groove are coaxially arranged, the positioned one-way valve, elastic sleeve, connector, and pusher are all on the same axis. Next, the pusher is driven by a cylinder to move towards the first fixing seat, so that the pusher pushes the one-way valve into the connector until the retaining ring of the one-way valve engages with the annular groove in the connector, thus completing the assembly of the one-way valve. This method can replace manual assembly, reducing labor intensity and improving assembly efficiency.

[0006] According to some embodiments of the present invention, the movable end of the cylinder is provided with a piston rod, and the pusher is threadedly connected to the end of the piston rod.

[0007] According to some embodiments of the present invention, the piston rod is externally fixed with a limiting ring, and the first fixed seat is provided with a limiting block on the side near the push head. The limiting ring can abut against the limiting block to restrict the push head from moving towards the first fixed seat.

[0008] According to some embodiments of the present invention, the first fixed seat is threadedly connected to a screw rod, the screw rod being able to move along the axial direction of the push head, and the limiting block being fixedly disposed at one end of the screw rod near the push head.

[0009] According to some embodiments of the present invention, a handwheel is provided at the end of the screw away from the limiting block.

[0010] According to some embodiments of the present invention, a blind hole is provided at one end of the pusher near the first fixed seat, the blind hole extends along the axial direction of the pusher, and one end of the one-way valve can be inserted into the blind hole.

[0011] According to some embodiments of the present invention, a tapered guide portion is provided at the opening of the blind hole, and the diameter of the tapered guide portion gradually decreases along the axial direction of the push head away from the first fixed seat.

[0012] According to some embodiments of the present invention, the second fixing seat is provided with a third positioning groove, the third positioning groove is coaxially arranged with the second positioning groove, and the third positioning groove is connected to the second positioning groove. The third positioning groove is used to position the connector.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the one-way valve assembly device of the uterine dilation balloon catheter according to an embodiment of the present invention;

[0016] Figure 2 This is another schematic diagram of the one-way valve assembly device for the uterine dilation balloon catheter according to an embodiment of the present invention;

[0017] Figure 3 This is a top view of the one-way valve assembly device of the uterine dilation balloon catheter according to an embodiment of the present invention;

[0018] Figure 4 This is a partial cross-sectional view of the one-way valve assembly device of the uterine dilation balloon catheter according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the assembly of the one-way valve of the uterine dilation balloon catheter according to an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] Base 100, first fixed seat 110, first positioning groove 111, limit block 112, screw 113, handwheel 114, second fixed seat 120, second positioning groove 121, third positioning groove 122, cylinder 200, push head 210, blind hole 211, conical guide part 212, piston rod 220, limit ring 221, one-way valve 300, retaining ring 310, elastic sleeve 400, annular part 410, connector 500, annular groove 510. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Understandably, referring to Figures 1 to 5 This utility model discloses an assembly device for a one-way valve 300 of a uterine dilation balloon catheter, comprising a base 100 and a cylinder 200. The base 100 is horizontally spaced with a first fixing seat 110 and a second fixing seat 120. The upper end face of the first fixing seat 110 has a first positioning groove 111 for positioning the radial position of the one-way valve 300. The upper end face of the second fixing seat 120 has a second positioning groove 121 for positioning the radial position of the elastic sleeve 400. The cylinder 200 is mounted on the base 100, and a pusher 210 is provided at the movable end of the cylinder 200. The first fixing seat 110 is located between the pusher 210 and the second fixing seat 200. Between the seats 120, the first positioning groove 111 extends along the axial direction of the push head 210 to the opposite sides of the first fixed seat 110, and the second positioning groove 121 extends along the axial direction of the push head 210 to the side of the second fixed seat 120 near the first fixed seat 110. The annular portion 410 of the elastic sleeve 400 can abut against the side of the second fixed seat 120 near the first fixed seat 110 to position the axial position of the elastic sleeve 400. The push head 210, the first positioning groove 111 and the second positioning groove 121 are arranged coaxially. The cylinder 200 is used to drive the push head 210 to move towards the first fixed seat 110 so that the push head 210 pushes the one-way valve 300 into the connector 500.

[0027] During assembly, first, the elastic sleeve 400 is fitted onto the connector 500. Then, a portion of the one-way valve 300 is inserted into the connector 500 for pre-assembly. Next, the pre-assembled one-way valve 300 and elastic sleeve 400 are placed into the first positioning groove 111 and the second positioning groove 121, respectively. The first positioning groove 111 positions the radial position of the one-way valve 300, and the second positioning groove 121 positions the radial position of the elastic sleeve 400. The annular portion 410 of the elastic sleeve 400 abuts against the side of the second fixing seat 120 near the first fixing seat 110, thus restricting the elastic sleeve 400 from moving away from the first fixing seat 110, thereby positioning the elastic sleeve 400. The axial position of the push head 210, the first positioning groove 111 and the second positioning groove 121 are coaxially arranged, so that the one-way valve 300, the elastic sleeve 400, the connector 500 and the push head 210 are in the same axial position after positioning. Then, the cylinder 200 drives the push head 210 to move towards the first fixed seat 110, so that the push head 210 pushes the one-way valve 300 into the connector 500 until the retaining ring 310 of the one-way valve 300 is engaged in the annular groove 510 in the connector 500, thereby completing the assembly of the one-way valve 300. This can replace manual assembly, reduce the intensity of manual labor and improve the assembly efficiency.

[0028] It should be noted that, referring to Figure 3 The elastic sleeve 400 is fitted onto the connector 500 by an interference fit, which fixes the relative position between the elastic sleeve 400 and the connector 500. When the annular portion 410 of the elastic sleeve 400 abuts against the side of the second fixing seat 120 near the first fixing seat 110, the axial position of the elastic sleeve 400 is positioned, thereby enabling the axial position of the connector 500 to be positioned.

[0029] The cross-sectional shape of the first positioning groove 111 and the second positioning groove 121 is U-shaped. The radial position of the one-way valve 300 is positioned by matching the semi-circular bottom wall of the first positioning groove 111 with the shape of the one-way valve 300. The radial position of the elastic sleeve 400 is positioned by matching the semi-circular bottom wall of the second positioning groove 121 with the shape of the elastic sleeve 400.

[0030] Understandably, referring to Figure 3 and Figure 4 The cylinder 200 has a piston rod 220 at its movable end, and a pusher head 210 is threadedly connected to the end of the piston rod 220. The piston rod 220 drives the pusher head 210 to move closer to the first fixed seat 110, improving the stability of the pusher head 300. Furthermore, since the pusher head 210 is threadedly connected to the end of the piston rod 220, it can be easily installed and removed by rotating it, facilitating replacement to accommodate the assembly of check valves 300 with different outer diameters.

[0031] Specifically, refer to Figures 1 to 3 The piston rod 220 is externally fixed with a limiting ring 221. A limiting block 112 is provided on the side of the first fixed seat 110 near the pusher head 210. The limiting ring 221 abuts against the limiting block 112 to restrict the pusher head 210 from moving closer to the first fixed seat 110. By limiting the pusher head 210 from moving closer to the first fixed seat 110 through the limiting ring 221 abutting against the limiting block 112, the stroke of the pusher head 210 can be controlled, reducing the possibility of the one-way valve 300 being inserted too deeply, thereby improving assembly stability.

[0032] Specifically, refer to Figures 1 to 3 The first fixed seat 110 is threadedly connected to a screw 113, which can move axially along the push head 210. A limiting block 112 is fixedly disposed at the end of the screw 113 near the push head 210. Since the second fixed seat 120 is threadedly connected to the screw 113 and the limiting block 112 is fixedly disposed at the end of the screw 113 near the push head 210, by rotating the screw 113, the limiting block 112 can be moved axially along the push head 210. This allows adjustment of the distance between the limiting block 112 and the second fixed seat 120, thereby adjusting the stroke of the push head 210 to meet the different insertion depth requirements of the one-way valve 300.

[0033] Specifically, refer to Figures 1 to 3 A handwheel 114 is provided at the end of the screw 113 away from the limit block 112. The operator can easily apply force to rotate the screw 113 by means of the handwheel 114, thereby driving the screw 113 to rotate and adjusting the distance between the limit block 112 and the second fixed seat 120.

[0034] Understandably, referring to Figure 4 The push head 210 has a blind hole 211 at one end near the first fixed seat 110. The blind hole 211 extends axially along the push head 210, and one end of the one-way valve 300 can be inserted into the blind hole 211. Since the blind hole 211 extends axially along the push head 210, the radial position of the one-way valve 300 can be positioned by inserting one end of the one-way valve 300 into the blind hole 211, which can improve the stability of the push head 210 pushing the one-way valve 300 to move, thereby improving the stability of the assembly.

[0035] Specifically, refer to Figure 4A tapered guide portion 212 is provided at the opening of the blind hole 211. The diameter of the tapered guide portion 212 gradually decreases along the axial direction of the push head 210 away from the first fixed seat 110. Since the diameter of the tapered guide portion 212 gradually decreases along the axial direction of the push head 210 away from the first fixed seat 110, when the push head 210 moves towards the one-way valve 300, the one-way valve 300 abuts against the wall of the tapered guide portion 212, thereby guiding the one-way valve 300 to gradually align and slide into the blind hole 211, which can improve the stability of the one-way valve 300 inserted into the blind hole 211.

[0036] Understandably, referring to Figures 1 to 4 The second fixed base 120 has a third positioning groove 122, which is coaxially arranged with the second positioning groove 121 and communicates with the second positioning groove 121. The third positioning groove 122 is used to position the connector 500. Positioning the connector 500 through the third positioning groove 122 can improve the positional stability of the connector 500, reduce the possibility of positional displacement of the connector 500, and thus improve the stability of assembly.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A one-way valve assembly device for a uterine dilation balloon catheter, characterized in that, include: The base has a first fixed seat and a second fixed seat horizontally spaced apart. The upper end face of the first fixed seat is provided with a first positioning groove, which is used to position the radial position of the one-way valve. The upper end face of the second fixed seat is provided with a second positioning groove, which is used to position the radial position of the elastic sleeve. A cylinder is disposed on the base. The movable end of the cylinder is provided with a push head. A first fixed seat is located between the push head and a second fixed seat. A first positioning groove extends along the axial direction of the push head to opposite sides of the first fixed seat. A second positioning groove extends along the axial direction of the push head to the side of the second fixed seat near the first fixed seat. The annular portion of the elastic sleeve can abut against the side of the second fixed seat near the first fixed seat to position the axial position of the elastic sleeve. The push head, the first positioning groove, and the second positioning groove are arranged coaxially. The cylinder is used to drive the push head to move towards the first fixed seat so that the push head pushes the one-way valve into the connector.

2. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 1, characterized in that, The cylinder has a piston rod at its movable end, and the pusher is threaded to the end of the piston rod.

3. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 2, characterized in that, The piston rod is externally fixed with a limiting ring, and the first fixed seat is provided with a limiting block on the side near the push head. The limiting ring can abut against the limiting block to restrict the push head from moving towards the first fixed seat.

4. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 3, characterized in that, The first fixed seat is threadedly connected to a screw rod, which is capable of moving along the axial direction of the push head. The limiting block is fixedly disposed at one end of the screw rod near the push head.

5. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 4, characterized in that, A handwheel is provided at the end of the screw away from the limiting block.

6. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 1, characterized in that, The pusher head has a blind hole at one end near the first fixed base. The blind hole extends along the axial direction of the pusher head, and one end of the one-way valve can be inserted into the blind hole.

7. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 6, characterized in that, The opening of the blind hole is provided with a tapered guide portion, the diameter of which gradually decreases along the axial direction of the push head away from the first fixed seat.

8. The one-way valve assembly device for the uterine dilation balloon catheter according to claim 1, characterized in that, The second fixing seat has a third positioning groove, which is coaxially arranged with the second positioning groove and communicates with the second positioning groove. The third positioning groove is used to position the connector.

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