JPH0574542U - Auxiliary bladder device - Google Patents

Abstract

(57) [Abstract] [Purpose] No airlock occurs in the connecting tube that connects the urinary catheter and the pressure adjustment chamber, and the fluidity of urine during siphon operation and urination is excellent, which imposes an extra burden on the patient. Provided is an auxiliary bladder device which can be safely used by patients and medical staff. An auxiliary bladder device 1 in which a urinary catheter for intravesical insertion 2 and a pressure adjusting chamber 3 are connected by a connecting tube 4.
The inner diameter of the connecting tube 4 in 8 is set to 8 mm or less.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an auxiliary bladder device.

[0002]

[Prior Art]

 In patients with spinal cord injury, cerebral hemorrhage, encephalomalacia, post-operative patients or bedridden elderly people, it is often difficult to urinate or accompanied by symptoms such as urinary incontinence. In such cases, urinary tract management was performed mainly by the continuous urinary urination method using an indwelling urinary catheter. However, it has become clear that this continuous urinary catheterization method has various problems, and an auxiliary bladder device has been proposed as a solution to these problems (Japanese Patent Laid-Open No. 60-171047). JP-A-60-176661).

These auxiliary bladder devices have a function of intermittently urinating the urine stored in the bladder by utilizing the principle of siphon, and at the time of urination, the urine in the bladder is not left. In order to achieve this, a pressure regulation chamber holding a ventilation resistant filter is provided.

By using such an auxiliary bladder device, the bladder is repeatedly filled and discharged with urine at a constant cycle, and it becomes possible to maintain the body's original urinary function. In addition, the self-cleaning action and infection defense function are also expressed, and it has become possible to reduce the occurrence of urinary tract infection due to bacteria.

[0005]

[Problems to be solved by the device]

 However, an air lock (air column) is generated in the connecting tube that connects the urinary catheter and the pressure adjusting chamber, which lowers the fluidity of urine when the siphon is operated or when urinating, which causes an extra burden on the patient, that is, an excessive amount. However, there was a drawback that the bladder pressure in the bladder was necessary for siphon operation, especially for siphon startup.

In view of such a situation, the present invention does not cause airlock in the connecting tube that connects the urinary catheter and the pressure adjusting chamber, has excellent fluidity of urine when operating the siphon and urinating, and is suitable for patients. It is an object of the present invention to provide an auxiliary bladder device that can be safely used by patients and medical staff without extra burden.

[0007]

[Means for Solving the Problems]

 As a result of earnest studies to achieve the above object, the present inventors have made thin the inner diameter of the connecting tube in the above-mentioned auxiliary bladder device and utilize the interfacial tension of the urinary column to create air inside the connecting tube. The present invention has been achieved by finding out that the above problems can be solved by preventing the lock from occurring.

That is, in the auxiliary bladder device of the present invention, the inner diameter of the connecting tube in the auxiliary bladder device in which the urinary catheter for intravesical insertion and the pressure adjusting chamber are connected by a connecting tube is 8 mm or less. It is characterized by.

[0009]

[Action]

 In the auxiliary bladder device of the present invention, by connecting the urinary catheter and the pressure adjusting chamber with a connecting tube having an inner diameter of 8 mm or less, the interfacial tension of urine acts in the tube, the urinary column break is eliminated, and the air lock is eliminated. It does not occur, the fluidity of urine is improved, and the suspended matter in the urine does not accumulate in the connecting tube as before, and the function as an auxiliary bladder device can be sufficiently fulfilled.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 denotes an auxiliary bladder device, and the auxiliary bladder device 1 is mainly composed of a urinary catheter 2, a pressure adjusting chamber 3 and a connecting tube 4, and is usually a urinary catheter placed in a bladder 5. The discharge end of the catheter 2 is used while being connected to the pressure adjusting chamber 3 via the connecting tube 4.

In the pressure adjusting chamber 3, concentric shaft type siphon tubes 6 and 7 each including an outer tube 6 and an inner tube 7 are built. A ventilation port 8 is provided at a position higher than the highest position of the concentric shaft type siphon pipes 6, 7, and a ventilation resistance filter 9 is loaded in the ventilation port 8 to adjust the siphon flow velocity. .. Further, a flexible connecting pipe 10 is connected to the lower end of the inner pipe 6 so as to be guided to a urine storage room or the like.

The auxiliary bladder device 1 used in the present invention intermittently discharges urine by the action of the siphon tubes 6 and 7, and a mechanical or electrical drive and control device for urine storage / urination. The device is not particularly limited as long as it is a device capable of urinating at an arbitrary interval without requiring. The siphon tubes 6 and 7 are not limited to the concentric shaft type siphon tubes (Japanese Patent Laid-Open No. 60-176661, etc.), but may be inverted U-shaped ones described in Japanese Patent Laid-Open No. 60-171047. Good.

The connecting tube 4 connecting the pressure adjusting chamber 3 and the urinary catheter 2 is preferably a flexible connecting tube having an inner diameter of 8 mm or less, preferably 6 mm or less. Although the outer diameter of the connecting tube 4 is not particularly specified, it is desirable that the connecting tube 4 has a wall thickness that does not cause kinging or the like. The wall thickness varies depending on the material of the tube, but is preferably 1 mm or more, and more preferably 1 mm or more. 2mm or more is recommended.

A hard plastic is used as a material forming the pressure adjusting chamber 3, but the hard plastic is not particularly limited as long as injection molding is possible. Preferably used are polycarbonate, acrylonitrile-styrene copolymer, acrylic-butadiene-styrene copolymer, polyethylene terephthalate, polystyrene, polyarylate, acrylic resin and the like.

Examples of the material of the connecting tube 4 used in the present invention include polyurethane, soft polyvinyl chloride, natural rubber, butadiene-styrene rubber, butyl rubber, nitrile rubber, chloroprene rubber, and silicone rubber. Regarding the inner diameter of the tube made of these materials, both ends of the connecting tube that connects to the pressure regulation chamber and the urinary catheter should be those that can be connected to them directly or through connectors, and the inner diameter of the connecting tube other than both ends. May be those described above.

The auxiliary bladder device of the present invention is used not only in patients with spinal cord injury but also in patients with cerebral hemorrhage, encephalomalacia, post-operative patients, bedridden elderly people who have difficulty urinating, and patients with urinary incontinence. be able to.

[0017]

[Effect of the device]

 When the auxiliary bladder device of the present invention was used, air lock did not occur in the connecting tube, the operation of the siphon and the fluidity of urine were improved, and the extra burden on the patient's bladder pressure during urination was eliminated. Furthermore, the use of a sterilized auxiliary bladder device simplifies the on-site operation of medical personnel and reduces the chance of infection associated with the use of this device.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view when an embodiment of the auxiliary bladder device of the present invention is applied to a patient.

[Explanation of symbols]

 1: Auxiliary bladder device 2: Urinary catheter 3: Pressure control chamber 4: Connection tube 5: Bladder 6: Outer tube of concentric shaft type siphon tube 7: Inner tube of concentric axis type siphon tube 8: Vent port 9: Air flow resistance Filter 10: Connection pipe

Claims (1)

[Scope of utility model registration request] 1. An auxiliary bladder device in which an inner diameter of the connecting tube in an auxiliary bladder device in which a urinary catheter for intravesical insertion and a pressure adjusting chamber are connected by a connecting tube is 8 mm or less.