Air bag catheter with fixator

By designing and installing rings and fixing blocks on the balloon catheter, and combining the magnetic attraction between the magnet and the iron plate, the problem of insufficient catheter insertion depth is solved, achieving stable fixation of the catheter and convenient connection with other tubes, thus improving operational safety and convenience.

CN223831581UActive Publication Date: 2026-01-27BEIJING CHILDRENS HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202423116874.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-01-27
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing balloon catheters have insufficient limitations on insertion depth, which may lead to excessive insertion and they cannot be effectively used with double-J stents, single-J stents, or ureteral catheters.

Method used

A balloon catheter with a fixator was designed, comprising an installation ring and a fixing block for limiting the insertion depth. The installation ring is adjusted by magnetic attraction of a magnet and an iron plate, and can fix double-J catheters, single-J catheters or ureteral catheters.

Benefits of technology

It effectively limits the insertion depth of the urinary catheter, avoids over-insertion, simplifies the removal process of double-J or single-J catheters, reduces anesthesia procedures, and supports a stable connection with the ureteral catheter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air bag catheter with a fixer, which comprises a catheter, one side of the catheter is provided with a liquid inlet / outlet, and one side of the catheter close to a urine outlet is further provided with a liquid medicine inlet pipe; an air bag tube is mounted on the outer side of the catheter, and a positioning air bag is mounted on the side, close to the liquid inlet and outlet, of the air bag tube; a fixing mechanism is installed on the outer side of the air bag pipe. The urethral catheter fixing device has the advantages that the insertion depth of the urethral catheter can be limited, the situation that the feeling of a patient is affected due to excessive insertion of the urethral catheter is avoided, the urethral catheter fixing device can be matched with a double-J tube or a single-J tube, a long suture can be fixed to the tail end of the bladder side of the double-J tube or the single-J tube, the tail end of the suture can be exposed out of a urethral orifice, and the suture is fixed to the mounting ring. When the double-J tube or the single-J tube needs to be pulled out, the double-J tube or the single-J tube can be pulled out by dragging the line, operation under anesthesia and cystoscopy are avoided, in addition, the double-J tube or the single-J tube can be matched with the ureteral catheter, and the ureteral catheter can be fixed to the mounting ring through the line and is prevented from falling off.
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Description

Technical Field

[0001] This utility model relates to the field of balloon catheter technology, specifically to a balloon catheter with a fixator. Background Technology

[0002] A urinary catheter is a common medical device that can be inserted into the bladder through the urethra to drain urine. After the catheter is inserted into the bladder, a balloon is fitted near the end of the catheter to secure it in the bladder and prevent it from easily falling out.

[0003] Currently used balloon catheters do not provide guidance on the depth of insertion, which may cause medical staff to insert the catheter too deeply and make it impossible to use with double-J stents, single-J stents, or ureteral catheters. Utility Model Content

[0004] Therefore, this utility model provides a balloon catheter with a fixator to solve the above-mentioned problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] According to a first aspect of the present invention, a balloon catheter with a fixator includes a catheter, wherein a liquid inlet and outlet are provided on one side of the catheter and a urine outlet is provided at the other end of the catheter.

[0007] An air balloon tube is installed on the outside of the urinary catheter. A positioning air balloon is installed on the side of the air balloon tube near the liquid inlet and outlet, and a connecting tube is installed on the side of the air balloon tube near the urine outlet.

[0008] A fixing mechanism is installed on the outside of the balloon tube to limit the insertion depth of the catheter.

[0009] Furthermore, the fixing mechanism includes an installation ring, and a fixing block is installed on the outer side of the installation ring. The fixing block has a hole-like structure on its inner side for fixing a double-J tube, a single-J tube, or a ureteral catheter.

[0010] Furthermore, the mounting ring is slidably mounted on the outside of the airbag tube.

[0011] Furthermore, a magnet is installed on the inner side of the mounting ring, and an iron piece installed inside the airbag tube is provided at the corresponding position of the magnet.

[0012] Furthermore, the outer surfaces of both the magnet and the iron sheet are chamfered.

[0013] Furthermore, the catheter has a medication inlet tube on the side near the urine outlet for introducing medication.

[0014] This utility model has the following advantages:

[0015] This invention can limit the insertion depth of the urinary catheter, avoiding excessive insertion that could affect the patient's comfort. It can also be used with double-J or single-J catheters: a long suture can be fixed to the bladder-side end of the double-J or single-J catheter, with the end of the suture protruding outside the urethral opening. The suture is fixed to the mounting ring. When it is necessary to remove the double-J or single-J catheter, it can be removed by pulling the suture, avoiding operation under anesthesia and cystoscopy. In addition, it can also be used with ureteral catheters: the ureteral catheter can be fixed to the mounting ring with a suture to prevent dislodgement. Attached Figure Description

[0016] Figure 1 This is a front cross-sectional view of a balloon catheter with a fixator provided for some embodiments of the present invention.

[0017] Figure 2 This is a side cross-sectional view of a balloon catheter with a fixator provided for some embodiments of the present invention.

[0018] In the diagram: 1. Urinary catheter, 2. Liquid inlet / outlet, 3. Balloon tube, 4. Positioning balloon, 5. Connecting tube, 6. Urine outlet, 7. Medication inlet tube, 8. Fixing mechanism, 801. Mounting ring, 802. Fixing block, 803. Magnet, 804. Iron sheet. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1 to 2 As shown, a balloon catheter with a fixator in the first aspect embodiment of the present invention includes a catheter 1, a liquid inlet and outlet 2 on one side of the catheter 1, and a urine outlet 6 at the other end of the catheter 1. A medicine inlet tube 7 is also provided on the side of the catheter 1 near the urine outlet 6, which can be used for medicine introduction, to inject medicine or liquid such as ice saline into the bladder for irrigation or flushing.

[0021] An air balloon tube 3 is installed on the outside of the urinary catheter 1. A positioning air balloon 4 is installed on the side of the air balloon tube 3 near the liquid inlet / outlet 2, and a connecting tube 5 is installed on the side of the air balloon tube 3 near the urine outlet 6. After an external air pump is connected to the connecting tube 5, the introduced air causes the positioning air balloon 4 to inflate.

[0022] A fixing mechanism 8 is installed on the outside of the balloon tube 3 to limit the insertion depth of the urinary catheter 1. The fixing mechanism 8 includes an installation ring 801, and a fixing block 802 is installed on the outside of the installation ring 801. The fixing block 802 has a hole-like structure on its inner side. Specifically, the fixing block 802 can prevent the urinary catheter 1 from slipping too much into the urinary tract and can also serve as a marker to prevent the catheter from dislodging.

[0023] The perforated structure within the fixation block 802 can be used to fix double-J or single-J stents. Some patients only require short-term placement of a double-J or single-J stent post-surgery. A longer suture can be fixed to the bladder-side distal end of the stent, with the end protruding outside the urethral orifice. The suture is then secured to the insertion ring. When removal of the double-J or single-J stent is necessary, the stent can be removed by pulling the suture. This process avoids the need for anesthesia and cystoscopy. The perforated structure within the fixation block 802 can also be used to fix ureteral catheters.

[0024] The mounting ring 801 is slidably mounted on the outside of the balloon tube 3. A magnet 803 is also mounted on the inside of the mounting ring 801. A metal piece 804 installed inside the balloon tube 3 is also provided at the corresponding position of the magnet 803. Specifically, the magnet 803 and the metal piece 804 attract each other using magnetism, so that the magnet 803 and the metal piece 804 can be spaced apart from the balloon tube 3 to create a positioning effect. The magnetic attraction between the magnet 803 and the metal piece 804 makes the magnet 803 and the metal piece 804 fit against the outer and inner surfaces of the balloon tube 3, so that the mounting ring 801 can create a certain fixing effect on the outer surface of the balloon tube 3, so that the position of the fixing block 802 can be adjusted according to the length of the penis and the insertion depth of the urinary tract.

[0025] Furthermore, the rotating mounting ring 801 can drive the magnet 803 to rotate, thereby enabling the iron sheet 804 to move inside the balloon tube 3, so that the iron sheet 804 can separate the balloon tube 3 from the catheter 1 where adhesion occurs.

[0026] The outer surfaces of both magnet 803 and iron sheet 804 are chamfered to avoid damage to catheter 1 and balloon tube 3.

Claims

1. A balloon catheter with a fixator, characterized in that, Includes a urinary catheter (1), one side of which has a liquid inlet and outlet (2), and the other end of which has a urine outlet (6); An air balloon tube (3) is installed on the outside of the urinary catheter (1). A positioning air balloon (4) is installed on the side of the air balloon tube (3) near the liquid inlet / outlet (2), and a connecting tube (5) is installed on the side of the air balloon tube (3) near the urine outlet (6). A fixing mechanism (8) is installed on the outside of the balloon tube (3) to limit the insertion depth of the catheter (1).

2. The balloon catheter with a fixator according to claim 1, characterized in that, The fixing mechanism (8) includes a mounting ring (801), and a fixing block (802) is mounted on the outer side of the mounting ring (801), and a hole-like structure is opened on the inner side of the fixing block (802).

3. A balloon catheter with a fixator according to claim 2, characterized in that, The mounting ring (801) is slidably mounted on the outside of the airbag tube (3).

4. A balloon catheter with a fixator according to claim 3, characterized in that, A magnet (803) is also installed on the inner side of the mounting ring (801), and an iron piece (804) installed in the airbag tube (3) is also provided at the corresponding position of the magnet (803).

5. A balloon catheter with a fixator according to claim 4, characterized in that, The outer surfaces of both the magnet (803) and the iron sheet (804) are chamfered.

6. A balloon catheter with a fixator according to claim 1, characterized in that, The catheter (1) has a drug inlet tube (7) on the side near the urine outlet (6) for introducing the drug.