DE2227416A1 - Single catheter - Google Patents

Description

Disposable catheter For various clinical pictures or consequences of accidents is a spontaneous miction, i.e. an arbitrary and controlled emptying of the Urinary bladder, no longer possible.

Since the retention of urine leads to irreversible damage in many balls the upper urinary tract (ureter and kidney) must lead in such cases Artificially emptying the filled bladder at appropriate time intervals through insertion a so-called catheter, i.e. a flexible, thin drainage tube the urethra is made into the bladder.

Until now, catheterization has generally been carried out by a doctor or by a special person trained nursing staff, because on the one hand when introducing one not sterile catheter pathogenic germs can be introduced and it thus becomes a Infection of the urogenital apparatus can occur, and on the other hand improper insertion of Catheter often causes an injury to the mucous membrane of the urethra, which subsequently leads to a scarred narrowing of the urethra.

In order to avoid infection, the process of catheterization must be performed be carried out sterile, i.e. it must be ensured that only one sterile Catheter is inserted into the urethra with the help of sterile instruments. This sterile catheterization has to be carried out regularly in the case of numerous sick or injured persons Can be done two to three times a day and is both medical-technical and very time-consuming.

The high medical-technical and time expenditure results from the fact that both the catheter to be introduced and the one for introducing it the necessary instruments in the urethra (forceps, grasping forceps, etc.) beforehand Must be sterilized because this is the only way to prevent the transmission of an infection can be.

Furthermore, the catheter must in each case before insertion through a can usually be made lubricant from a tube applied lubricant, because only then mechanical injury to the urethra can be avoided.

Finally, of course, the catheter must be used to collect it Emptied urine used urine bottle emptied each time and with antiseptic Detergents are cleaned.

Only by such a complex procedure can hospitals the danger of so-called "hospitalism", i.e. the transfer of one to one Patient's existing infection through catheters, instruments, urinary bottles, nursing staff etc., to be fought with a prospect of success.

It is already known to use this great effort in part of sterile packaged "disposable catheters" made of cheap plastic instead of the previous ones catheters made of rubber, relatively expensive and therefore repeatedly used to diminish. Those usually sterilized with gamma rays and individually Sterile packaged disposable catheters are destroyed after a single use, so that the previously required sterilization before each repeated use is omitted.

Even when using this known single-use catheter, all must above operations with the exception of sterilizing the catheter be carried out themselves, so in particular the sterilization of the insertion of the catheter used instruments, including the scissors, which in this case is required to open the sterile packaging, as well as the application of the lubricant from a tube onto the catheter and the awkward handling of the Urine bottle.

The present invention now aims to provide disposable catheters so to design that a further substantial reduction in the effort required and in addition a significant simplification of the handling during catheterization and even a ready-made housing for all for reteterizing required aids is made possible in a sterile packaging.

A disposable catheter constructed in accordance with the invention essentially consists from a flexible plastic tube packed in a sterile plastic sleeve and is characterized in that one end of this tube freely enters a Urine collection bag opens, which encloses the tube with a space in between Has hose attachment and together with this hose attachment the Forms plastic sleeve for sterile packaging.

A disposable catheter according to the invention does not stop when it is used taken from the plastic sleeve serving for its sterile packaging, rather There are at least two essentials in this packaging during use Functions to: firstly, your bag part serves as a replacement for the otherwise required Urinary bottle, with which the time and effort required to clean the same up to now is not applicable, and its hose attachment serves, by the way, only when it is used of the bag part for collecting the urine enables it to escape Air allows, at the same time as the aid to replace tweezers or grasping forceps, with which the catheter is handled when it is inserted into the urethra, so that so far the instrument required for this and thus also the need for sterilization the same are omitted.

In a further embodiment of the invention, the tube stands with space enclosing hose attachment over the catheter tip forming free end of the tube in front of and in this end section is a lubricant for the tube accommodated, with which then all necessary for the ketheterization Aids are included in the sterile packaging ready to use and after Can be thrown away together for use.

Further features and advantages of the invention emerge from the following Description of an embodiment based on the drawing.

Fig. 1 shows a disposable catheter according to the invention in plan view in sterile packaging and Fig. 2 shows the catheter with folded sterile packaging in an additional protective plastic cover.

The disposable catheter according to FIG. 1 consists of a flexible tube 1 made of plastic, for example made of PVC, which is about 40 cm long and used as a catheter tip has a rounded plug 2, behind which two mutually offset oval openings 3 are formed.

The mouth piece 4 of the tube is about 2 cm long and has at the mouth has a diameter of about 1 cm.

Such catheters are known per se and are commercially sterile Packaging available.

According to the invention, the tube 1 is from one to sterile packaging serving plastic sleeve 5 enclosed, which an enlarged bag part 6 and a hose extension 7 substantially corresponding to the length of the tube 1 which is integrally connected to the bag part 6 and at its free End 8 is also closed. The bag part can e.g. be 25 cm long and 13 cm wide, which corresponds to a urine capacity of about 750 cm3. On the bag part a scale 10 indicating the amount of urine excreted is expediently provided, The mouth end 4 of the tube 1 protrudes loosely into the bag part 6, and the the tube extension 7 enclosing the tube 1 extends over the catheter tip 2 addition. This hose extension 7, which is integral with the bag part 6, for example is made of a 0.03 mm thick PVC-1? olie, z * B. 45 cm long # and 3 be cm wide. In an approximately 4 cm long end section 9 of the hose extension 7 is housed a lubricant.

In the case of a relatively thin lubricant, the end section can 9 by a separable sweat, Roiss or adhesive 11 from the rest of the hose attachment partitioned off will. If the lubricant is relatively thick, it can it is sufficient to fill the end section 9 with the lubricant according to FIG To knock back tube 1, because then the fold obtained in this way is sufficient Holding the lubricant causes. If a separable seam is used, the sufficiently rigid end part of the tube 1 into the seam before use be driven in to tear the tube 1 with the lubricant to bring into contact, or tear threads can be provided at the seam will. It is also possible to put the lubricant in a separate thin-walled bag to be arranged in the end section 9 of the hose extension 7 and this bag by the action of pressure to burst.

To use scissors or the like. to open the hose attachment to avoid, can at the end 8 of the hose attachment or near the same tear-off threads or some other separable seam can be provided. It is also possible how indicated in Fig. 1, within the end section 9, a plate 13 with at least to arrange a toothed edge 14, which would allow the seams to be separated at 8 and 11 enables.

FIG. 2 shows the disposable catheter according to FIG. 1 in a further protective sheath 12 packed. Here, the bag part 6 is about the line A-A in Fig. 1 in the longitudinal direction Folded back over the tube 1 and around the lines B-B and C-C in Fig. 1 in Folded transversely and also the end section protruding over the catheter tip 2 9 is turned back over the tube 1, so that a space-saving packaging results, which overall is only slightly longer than the length of the tube 1.

With the described orfindu # a #### ä # n single-use catheters are all for katheterisie @@@ »rtsrderlichen IIiJ ~ 31; litte1 sterile packed and intended for single use.

It eliminates all previously required sterilization and Cleaning work, what in hospitals especially with regard to the large Staff shortage is a great advantage.

Since the catheter and all its aids are sterile packed because of its low space requirement easily even in larger numbers by each patient in particular Can also be carried on journeys and its handling with some practice no Causes difficulties, it is to be expected that in the future the number of patients who learn to catheterize themselves increases significantly.

By destroying the disposable catheter and the disposable bottle becomes the risk of infection, especially the risk of hospitalism on one Minimum reduced.

In the event that, for example when catheterizing in the car, none If there is an opportunity to throw away the filled urine bag immediately, that can Catheter tubes are pushed into the urinary bag and the protruding part of the hose attachment to a knot are tied, making the bag is closed practically liquid-tight and thrown away at the next opportunity can be.

The described embodiment of the invention can of course with regard to the formation of the individual parts, in particular with regard to the accommodation of the lubricant in the hose attachment, can still be changed variously.

Claims (8)

Patent claims: @ I disposable catheter, which essentially consists of a sterile in a Plastic-wrapped flexible tubes made of plastic, d u r c h g e -k e n n n z e i c h n e t that one end (4) of this tube (1) is free opens into a urine collection bag (6), one of which is the tube with a space in between enclosing hose extension (7) and together with this hose extension forms the plastic sleeve (5) for the sterile packaging. 2. Catheter according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the hose attachment (7) over the catheter tip (2) forming free End of the tube (1) protrudes and in this end section (9) a lubricant for the tube is housed. 3. Catheter according to claim 2, d a d u r c h g e k e n n z e i c h n e t that the end section (9) of the hose attachment by a separable tear, Weld or adhesive seam 11 is divided. 4. Catheter according to claim 2 or 51 d a d u r c h g e k e n n z e i c h n e t that the end section (9) of the hose attachment containing the lubricant (7) is kicked back over the tube (1). 5. Catheter according to one of claims 1 to 4, d a d u r c h g e k It is noted that at or near the free end (8) of the hose attachment (7) tear-off threads are provided for opening the same. 6. Catheter according to one of claims 1 to 5, d a d u r c h g e k It is noted that the bag (6) contains the amount of urine excreted indicating scale (10) is provided. 7. Catheter according to one of claims -1 to 6, d a d u r c h g e it does not indicate that the tube (1) together with the bag (6) with the hose attachment (7) is enclosed by a further, elongated protective sheath (12), wherein the bag (6) folded back in the longitudinal direction over the tube (1) and in the transverse direction is rolled up or folded up and possibly also the one over the free one End (2) of the tube (i) protruding end section containing the lubricant (9) of the hose attachment (7) is knocked back over the tube (1). 8. Catheter according to one of claims 2 to 6, d a d u r c h g e k It is noted that there is a plate within the end section (9) (13) is located with at least one toothed edge (14). Le e r page