A bladder irrigation device

Abstract

The application discloses a bladder flushing device, relates to the technical field of urology, and comprises a double-lumen catheter, a drainage tube, a drainage bag, a flushing liquid bag, a puncture needle and a three-way joint, the double-lumen catheter and the drainage tube are connected with two joints of the three-way joint, the remaining joint of the three-way joint is filled with a sealing rubber plug, the flushing liquid bag is connected with the puncture needle through a flushing liquid pipe, the puncture needle comprises a needle head and a needle handle, the needle head pierces the sealing rubber plug, the needle handle is located outside the sealing rubber plug, a anti-dropping assembly is arranged on the joint for connecting the puncture needle, the anti-dropping assembly comprises a joint cap matched with the joint, a supporting sheet arranged on the joint cap and a pressing ring elastic sheet slidingly arranged on the supporting sheet, the pressing ring elastic sheet is configured to slide along the axial direction of the supporting sheet and press the needle handle to prevent the puncture needle from retreating and falling off. The application can avoid the puncture needle from causing a puncture injury when the puncture needle pierces the double-lumen catheter, and can prevent the puncture needle from retreating and falling off.

Description

Technical Field

[0001] This application relates to the field of urological technology, specifically to a bladder irrigation device. Background Technology

[0002] Traditional bladder irrigation involves inserting the irrigation fluid into a double-lumen catheter through a needle. This method requires the needle to be inserted obliquely into the double-lumen catheter, which can easily cause puncture wounds if not handled carefully. Furthermore, the needle is fixed to the outer wall of the double-lumen catheter with tape, making it prone to falling off. Utility Model Content

[0003] The main objective of this application is to provide a bladder irrigation device that aims to solve the aforementioned technical problems.

[0004] The technical solution adopted in this application is as follows:

[0005] A bladder irrigation device includes a double-lumen catheter, a drainage tube, a drainage bag, an irrigation fluid bag, and a puncture needle. It also includes a three-way connector. The double-lumen catheter and the drainage tube are connected to two of the connectors of the three-way connector. The remaining connector of the three-way connector is filled with a sealing rubber stopper. The irrigation fluid bag is connected to the puncture needle via an irrigation fluid tube. The puncture needle includes a needle tip and a needle shank. The needle tip pierces the sealing rubber stopper, and the needle shank is located outside the sealing rubber stopper. An anti-dislodgement component is provided on the connector for connecting the puncture needle. The anti-dislodgement component includes a connector cap that mates with the connector, a support plate disposed on the connector cap, and a pressure ring spring slidably disposed on the support plate. The pressure ring spring is configured to slide with damping along the axial direction of the support plate and press against the needle shank to prevent the puncture needle from retracting and falling off.

[0006] Optionally, the support piece is a long strip with a semi-circular cross-section, and a groove is provided on the side wall of the support piece along the axial direction of the support piece, and the pressure ring spring is tensioned and disposed in the groove.

[0007] Optionally, the slide groove is provided with a side groove, the groove surface of the side groove is provided with a plurality of grooves, the pressure ring spring is provided with a side block protruding into the side groove, and the side block is provided with a shoulder that engages with the groove.

[0008] Optionally, the outer end face of the connector cap is provided with a guide hole for guiding the needle to penetrate.

[0009] Optionally, the three-way connector used to connect the double-lumen catheter is tapered.

[0010] Optionally, the tee connector for connecting the drainage tube is provided with a tapered inner cavity, and a sealing ring is provided on the inner side of the tapered inner cavity.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] This application provides a bladder irrigation device that connects a urinary catheter, a drainage tube, and a puncture needle via a three-way connector. The three-way connector is filled with a sealing rubber plug, allowing the puncture needle to be inserted horizontally without causing injury. The three-way connector also prevents puncture wounds caused by needle penetration. Furthermore, an anti-dislodgement component is provided on the connector of the three-way connector used to connect the puncture needle. After the pressure ring spring is pressed against the needle handle, the damping sliding between the pressure ring spring and the support plate prevents the pressure ring spring from moving arbitrarily, thereby pressing the puncture needle to prevent it from retracting and dislodging. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the bladder irrigation device provided in the embodiments of this application;

[0014] Figure 2 This is a schematic diagram of the structure of a tee connector;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the internal structure of a tee connector;

[0017] Figure 5 This is a schematic diagram of the support sheet structure;

[0018] Figure 6 This is a schematic diagram of the pressure ring spring.

[0019] Explanation of the labels in the attached drawings:

[0020] 1-Double-lumen urinary catheter, 2-Drainage tube, 3-Drainage bag, 4-Irrigation fluid bag, 5-Puncture needle, 501-Needle tip, 502-Needle handle, 6-T-connector, 7-Anti-dislodgement component, 701-Connector cap, 702-Support piece, 703-Pressure ring spring, 704-Guide through hole, 705-Slide groove, 706-Side groove, 707-Score groove, 708-Side block, 709-Shoulder, 8-Sealing rubber plug, 9-Sealing ring. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0025] See attached document Figures 1 to 4 As shown, this application provides a bladder irrigation device, including a double-lumen catheter 1, a drainage tube 2, a drainage bag 3, an irrigation fluid bag 4, a puncture needle 5, and a three-way connector 6. For ease of explanation, the three connectors of the three-way connector 6 are named the first connector, the second connector, and the third connector, respectively. The first connector and the second connector are coaxially arranged, and the third connector is perpendicular to the axis of the first connector and the second connector. The first connector is used to connect the double-lumen catheter 1, and the second connector is used to connect the drainage tube 2. The first connector has a conical outer body to facilitate connection with the double-lumen catheter 1. One end of the double-lumen catheter 1 is left in the bladder. The second connector has a conical inner cavity, and the inner wall of the conical inner cavity forms an annular groove. A sealing ring 9 made of silicone material is embedded in the annular groove. The connecting end of the drainage tube 2 is inserted into the second connector and a sealed connection is formed by the sealing ring 9.

[0026] In the above, the third connector is filled with a sealing rubber plug 8. The sealing rubber plug is attached to the inner wall of the third connector to form a squeeze seal. The flushing fluid bag 4 is connected to the puncture needle 5 through the flushing fluid tube. The puncture needle 5 includes a needle head 501 and a needle handle 502. The needle head 501 punctures the sealing rubber plug 8, and the needle handle 502 is located outside the sealing rubber plug 8. A flow valve is provided on the flushing fluid tube. When the flow valve is opened, the flushing fluid enters the urinary catheter along the flushing tube to irrigate and flush the bladder.

[0027] In this embodiment, an anti-dislodgement component 7 is provided on the third connector used to connect the puncture needle 5. The anti-dislodgement component 7 includes a connector cap 701, a support plate 702, and a pressure ring spring 703. The connector cap 701 is fixedly installed on the third connector by a threaded connection. The connector cap 701 has a guide hole 704 in the center. The inner diameter of the guide hole 704 is larger than the outer diameter of the needle tip 501 to facilitate guiding the puncture needle 5 to pierce the rubber plug. The support plate 702 is integrally formed on the outer end face of the connector cap 701 and is located on the outer periphery of the guide hole 704. The support plate 702 is a long strip with a semi-circular cross-section. This design makes the support plate 702 an open structure, which facilitates the puncture needle 5 to pierce the sealing rubber plug 8 without obstructing the needle handle 502. The pressure ring spring 703 is configured to slide with damping along the axial direction of the support plate 702 and press against the needle handle 502, thereby preventing the puncture needle 5 from retracting and falling off.

[0028] Specifically, such as Figure 5 and Figure 6 As shown, a groove 705 is provided along the axial direction of the support plate 702 on its side wall. The pressure ring spring 703 is a semi-circular structure opposite to the support plate 702. The pressure ring spring 703 is made of a rigid material with a certain degree of plasticity, such as polyvinyl chloride, which can be used in medical devices. The outer diameter of the pressure ring spring 703 is larger than the radius of the circle containing the groove 705, so the pressure ring spring 703 needs to be squeezed to be inserted into the groove 705. At the same time, taking advantage of the characteristic that the pressure ring spring 703 can recover its shape after being squeezed, the pressure ring spring 703 is tensioned and installed in the groove 705, so that damping friction is formed between the pressure ring spring 703 and the support plate 702, so that force is required to move the pressure ring spring 703.

[0029] Therefore, during the urinary catheterization process, the three-way connector 6 should be connected to the drainage tube 2 and the urinary catheter in advance, and the third connector should be reserved for irrigation and flushing. When it is necessary to irrigate and flush the bladder, the pressure ring spring 703 is removed from the support plate 702. The medical staff holds the puncture needle 5 and punctures the sealing plug 8 through the guide hole 704. The needle handle 502 is attached to the outer end face of the connector cap 701 to form a forward movement limit. After the puncture needle 5 is inserted, one end of the pressure ring spring 703 is inserted into the slide groove 705, and the other end is squeezed and inserted into the other slide groove 705. After releasing, the pressure ring spring 703 is tensioned in the slide groove 705. The pressure ring spring 703 is slid forcefully against the needle handle 502 to form a backward movement limit, thereby preventing the puncture needle 5 from retracting and falling off.

[0030] Of course, in a preferred embodiment, to further reduce the risk of the pressure ring spring 703 shifting backward, see [reference needed]. Figure 5 and Figure 6 As shown, the slide groove 705 is provided with a side groove 706, and the groove surface of the side groove 706 is provided with a plurality of scoring grooves 707. The pressure ring spring 703 is provided with a side block 708 protruding into the side groove 706, and the side block 708 is provided with a shoulder 709 that engages with the scoring groove 707. It can be imagined that after the pressure ring spring 703 is slid forcefully until it abuts against the needle handle 502, the damping friction between the pressure ring spring 703 and the supporting spring and the resistance between the shoulder 709 and the scoring groove 707 can effectively prevent the pressure ring spring 703 from moving backward, further securing the puncture needle 5 and preventing it from retracting and falling off.

[0031] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bladder irrigation device, comprising a double-lumen catheter, a drainage tube, a drainage bag, an irrigation fluid bag, and a puncture needle, characterized in that, It also includes a three-way connector, with the double-lumen catheter and the drainage tube connected to two of the three-way connectors. The remaining connector of the three-way connector is filled with a sealing rubber plug. The irrigation fluid bag is connected to the puncture needle through an irrigation fluid tube. The puncture needle includes a needle tip and a needle shank. The needle tip pierces the sealing rubber plug, and the needle shank is located outside the sealing rubber plug. An anti-dislodgement component is provided on the connector for connecting the puncture needle. The anti-dislodgement component includes a connector cap that mates with the connector, a support plate provided on the connector cap, and a pressure ring spring that is slidably provided on the support plate. The pressure ring spring is configured to slide with damping along the axial direction of the support plate and press against the needle shank to prevent the puncture needle from retracting and falling off.

2. The bladder irrigation device according to claim 1, characterized in that, The support piece is a long strip with a semi-circular cross-section. A groove is provided on the side wall of the support piece along the axial direction of the support piece, and the pressure ring spring is tensioned and disposed in the groove.

3. The bladder irrigation device according to claim 2, characterized in that, The slide groove is provided with a side groove, and the groove surface of the side groove is provided with a plurality of grooves. The pressure ring spring is provided with a side block protruding into the side groove, and the side block is provided with a shoulder that engages with the groove.

4. The bladder irrigation device according to claim 1, characterized in that, The outer end face of the connector cap is provided with a guide hole for guiding the needle to penetrate.

5. The bladder irrigation device according to claim 1, characterized in that, The three-way connector used to connect the double-lumen catheter is tapered.

6. The bladder irrigation device according to claim 1, characterized in that, The tee connector used to connect the drainage tube has a tapered inner cavity, and a sealing ring is provided on the inner side of the tapered inner cavity.

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