Source: https://patents.google.com/patent/DE102007006905B4/en
Timestamp: 2019-12-16 02:56:56
Document Index: 517862134

Matched Legal Cases: ['art 24', 'art 25', 'art 25', 'art 25', 'art 24', 'art 24', 'art 25']

DE102007006905B4 - A method of wetting a hydrophilic urinal catheter and associated catheter system - Google Patents
A method of wetting a hydrophilic urinal catheter and associated catheter system
DE102007006905B4
DE102007006905B4 DE200710006905 DE102007006905A DE102007006905B4 DE 102007006905 B4 DE102007006905 B4 DE 102007006905B4 DE 200710006905 DE200710006905 DE 200710006905 DE 102007006905 A DE102007006905 A DE 102007006905A DE 102007006905 B4 DE102007006905 B4 DE 102007006905B4
DE200710006905
DE102007006905A1 (en
2007-02-13 Application filed by MEDICAL SERVICE GmbH filed Critical MEDICAL SERVICE GmbH
2007-02-13 Priority to DE200710006905 priority Critical patent/DE102007006905B4/en
2008-08-21 Publication of DE102007006905A1 publication Critical patent/DE102007006905A1/en
2008-12-18 Publication of DE102007006905B4 publication Critical patent/DE102007006905B4/en
2009-03-18 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39298327&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE102007006905(B4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
A method of wetting a hydrophilic urinal catheter (1) within a closed package (2) of the catheter (1), the package (2)
- An elongated wetting area (3) containing at least one part to be wetted of the hydrophilic urinal catheter (1), and
- a storage area (9) with a depot (10) for a wetting liquid (23),
wherein the depot (10) can be opened so that the wetting liquid (23) can flow from the storage area (9) through a transition area (8) into the wetting area (3), the method comprising the steps of:
a) the depot (10) is opened, in particular by exerting an external pressure on the depot (10) through the packaging (2);
b) the wetting liquid (23) flows from the storage area (9) into a free volume V free of the elongated wetting area (3) and fills it with a maximum of 2/3 wetting liquid (23), in particular, the wetting liquid (23) flows by gravity to a End (5) of the elongated wetting area (3), which is ...
The invention relates to a method for wetting a hydrophilic urinal catheter within a closed package of the catheter. The invention further relates to a catheter system comprising
A urinal catheter with a hydrophilic coating and
- A package in which the catheter is arranged, wherein the package has
An elongated wetting area containing at least one part of the catheter to be wetted, and
- A storage area with a depot for a wetting liquid, wherein the depot can be opened so that the wetting liquid can flow from the storage area through a transition region in the wetting area.
Such a method and an associated catheter system have become known, for example by WO 2006/092150 A1 ,
Urinal catheter are used to empty the bladder in a patient. The catheter is inserted into the urethra into the urinary bladder Patients inserted. Through the catheter, in essence is designed as a hollow tube, the urine can drain.
Around the introduction of the catheter for the patient as possible painless, it is known the surface of the Catheter, at least as far as it is to be inserted into the urethra, better lubricious close. A very good lubricity can be achieved by so-called hydrophilic catheters. These Catheters point on their outside a hydrophilic coating formed by an aqueous wetting liquid (about 0.9% aqueous NaCl solution) activated and thus slippery can be made. The hydrophilic catheter will be there shortly before the insertion into the urethra for about. 30 seconds with the wetting liquid brought into contact.
Either the hydrophilic catheter itself as well as the wetting liquid have to be sterile to detect an infection of the patient where the catheter is introduced will exclude. Many patients lead their catheterization even by, especially on the go. For this Application catheter systems have become known in which a wetting of the catheter within a closed, sterile package the catheter can be performed without direct contact with the fingers. Inside the packaging is a supply of sterile wetting fluid present, which can be emptied onto the catheter.
The WO 2006/092150 A1 includes a catheter system in which the package comprises both a hydrophilic catheter and a depot for an activator of the hydrophilic layer of the catheter. The depot is opened by the user before or at the opening of the package, whereby the catheter comes into contact with the activating agent in its packaging.
From the EP 0 959 930 B1 a catheter system has become known in which the packaging has an elongated pocket into which a hydrophilic catheter with its insertion end is inserted in advance with a front part. In a designed as a urine bag part of the packaging, in which the elongated bag opens like a funnel, a liquid depot is provided. To activate the catheter, the catheter system with the elongated pocket is held vertically downwards and the depot is opened. The wetting liquid flows into the pocket and fills it up, wetting the part of the catheter in the pocket. After a waiting period, the catheter is used.
Another wetting device for hydrophilic urinary catheters is described in US Pat DE 29724914 U1 called. The hydrophilic urinary catheter is arranged in a container in which a wetting fluid container is integrated. After opening the fluid container, the insertable length of the urinary catheter is wetted with the fluid. In addition, the packaging also serves as a collecting container for urine.
The DE 10213411 B4 Named a package for catheters that contains a lubricant that contains medicinal ingredients. When the catheter is pushed out of the packaging, the catheter passes the lubricant depot and is wetted with lubricant.
The EP 0677299 B1 includes a package for a catheter, wherein the catheter is wetted upon removal from the package with lubricant or wetting agent for a hydrophilic layer. The lubricant or wetting agent may already be in the packaging or is added after the opening of the packaging by the user.
In the EP 0252918 B1 For example, a catheter humidification and storage device is described which includes an area in which the catheter may be wetted and also includes a separate further area in which the catheter may be stored.
A disadvantage of this prior art is the relatively large amount of wetting liquid needed to activate the catheter. The elongated pocket must be filled as far as the catheter length required for insertion into the urethra. The large amount of sterile wetting liquid increases the manufacturing cost of the catheter system. Furthermore, the large amount of wetting liquid increases the weight of the catheter system, which, among other things, makes carrying the catheter system more troublesome to the patient on the way.
It is therefore the object of the present invention, a method for wetting a hydrophilic catheter within a closed Packaging of the catheter, which with a lower Amount of wetting liquid can get along. Likewise, a catheter system should be presented, in which the necessary amount of entrained wetting liquid is reduced without affecting the wetting ability.
This object is achieved with respect to the wetting method by a method of wetting a hydrophilic urinal catheter within a closed package of the catheter, the package having
An elongated wetting area containing at least one part of the hydrophilic urinal catheter to be wetted, and
A storage area with a depot for a wetting liquid,
wherein the depot may be opened such that the wetting liquid may flow from the storage area through a transition area into the wetting area, the method comprising the steps of:
a) the depot is opened, in particular by exerting external pressure on the depot through the packaging;
b) the wetting liquid flows from the storage area into a free volume of the elongated wetting area and fills it with a maximum of 2/3 with wetting liquid, in particular the wetting liquid flows by gravity to one end of the elongated wetting area, which faces away from the transition area, wherein the free volume Vfrei the volume Vbb of the wetting area minus the volume Vkat of the wetting area portion of the catheter;
c) the transition area is sealed, so that a backflow of wetting liquid from the wetting area into the storage area is at least largely blocked;
d) the package is pivoted, in particular so that the wetting liquid flows by gravity to an end of the elongated wetting area, which is close to the transition area.
in the The invention makes use of it for the activation of a hydrophilic Catheter is not necessary, the part of the catheter to be activated while the activation time completely and constantly in the wetting liquid to keep. Rather, it is sufficient if all sections of the to be activated part of the catheter once intensively with wetting liquid soaked become (approximately at the beginning of the activation time) and the catheter only is used after expiration of the activation time. In particular it is possible according to the invention, various Portions of the part of the catheter to be activated in succession with the same wetting liquid to soak. This can wetting liquid be saved.
in the The scope of the invention is for this initially provided, in the wetting area of the packaging in which the to be wetted Part of the catheter (or even the whole catheter) is arranged the wetting liquid from the depot. This becomes a first, in the current orientation the packaging flooded in the lower part of the wetting area, and a first section of the catheter disposed in the flooded part is wetted. Preferably, this first, lower part of the Wetting area about half of the free (i.e., not already occupied by the catheter part of the) volume of the wetting area.
So far wetting fluid is only once on the catheter during this introduction it's over for a reliable one Activation of the hydrophilic coating is not sufficient. Therefore, now the rest to be wetted part of the catheter to be intensively soaked.
Around the wetting liquid to contact with other catheter parts, d. H. around the wetting liquid could flow into other parts of the wetting area, the Packing be pivoted. However, there is a risk that the wetting liquid back flows into the storage area of the packaging and nothing to wetting of the catheter. In particular, that part of the wetting area, the near the transition area to the storage area, could not for sufficient time flooded or bathes become.
Therefore, the invention provides, at the latest after the wetting liquid has been admitted into the wetting area, to seal the transition area against a return flow of wetting liquid into the storage area. In the simplest In this case, the user of the catheter system can do this manually (for example, by clamping), or the seal is due to the design of the catheter system automatically (for example by means of a valve, in particular flutter valve).
To sealing the transition area The packaging can be easily pivoted to the wetting liquid to flow to another part of the wetting area. For example Now the packaging is rotated, so that the previously lower part of the elongated one Wetting area is directed upward, and the previously upper Part of the wetting area is directed downward. In the preferred Case that the amount of wetting liquid about half of the free volume of the wetting area is thereby the rest, not yet flooded Part of the wetting area flooded; this is sufficient activation of any one to be wetted Part of the catheter within the wetting area ensured.
The for one Activation of a section of the hydrophilic coating of a Catheter is sufficient intensive watering with wetting liquid in particular, ensures if the section flooded once briefly (already 2-3 seconds are enough for common coatings) was.
One intense watering may in the context of the invention but also by passing past the section wetting liquid be achieved, especially when passing by slowly and repeatedly set up. Because after sealing the transition area the wetting liquid only still flow in the wetting area can, can any pivoting of the packaging without loss of fluid respectively. In particular, the packaging with the elongated Wetting range approximately be held horizontally and with the two ends of the wetting area slowly alternately tilted slightly downwards, for example with a frequency of about one tilt per second and one Tilt angle from the horizontal of approx. 5-15 °. The filling liquid flows between the two ends of the elongated Wetting area back and forth. In particular one in the middle of the Wetting area arranged catheter part can by this technique for one Activation of a hydrophilic coating are sufficiently lapped.
in the Under the invention, it is not necessary to seal the Passage area completely liquid-tight make. A reflux, the for the warranty a sufficient activation of the catheter is irrelevant, can except Keep in mind. As a rule, a fluid loss of up to about 20% of the heating fluid via a typical activation period of 30 seconds irrelevant.
It it is understood that within the scope of the invention, the wetting range while the activation of the hydrophilic coating at best may have insignificant leaks. Preferably, the Wetting range when activating the hydrophilic coating therefore except the transition area no further openings. The wetting area closes According to the invention a possible low volume around the catheter, as far as this in the wetting area is arranged one, so that the wetting liquid used efficiently can be.
In Step b) is the free volume of the wetting area, that is the volume Vbb of the wetting area minus the volume Vkat of the part of the catheter, which is arranged in the wetting area, maximum to 2/3 with wetting liquid filled. As a result, a saving of wetting liquid is realized. For a simple, Two-stage wetting is a liquid volume Vfl = 1/2 · Vfree sufficient; by slightly higher quantities on liquid can remaining leaks in the wetting area balanced become.
The scope of the present invention also includes a catheter system comprising
- A storage area with a depot for a wetting liquid, wherein the depot can be opened so that the wetting liquid from the storage area can flow through a transition region in the wetting area, and the transition region is sealable, so that after opening the depot, a backflow of wetting liquid from the wetting area into the storage area can largely be prevented, and for the volume Vfl of the wetting liquid of the depot, the volume Vbb of the wetting area and the volume Vkat of the part of the catheter which is arranged in the wetting area, Vfl ≦ 2/3 · ( Vbb - Vkath), and preferably Vfl ≤ 1/2 · (Vbb - Vkat). Such a catheter system according to the invention can ensure wetting of the entire part of the catheter to be activated, without the entire part of the catheter to be activated being flooded after the depot has been emptied. As a result, wetting liquid can be saved.
at a preferred variant of the method according to the invention is provided that after step d) at least 15 seconds, preferably at least 30 seconds, pass before the catheter unpacked and in the urethra introduced by a patient becomes. This time is usually used to activate the hydrophilic Coating (swelling and chemical processes) sufficient, so that a good slipperiness the hydrophilic coating is achieved.
Prefers is also a variant in which after step d) another step e), with: e) the packaging is swung back and forth, so that the wetting liquid in the oblong Wetting area between the ends flows back and forth. at This variant is enough a very small amount of wetting liquid out. This variant is used to measure at a volume Vfl of wetting liquid, that is less than half of the free volume Vfrei of the wetting area (with Voff = Vbb - Vkat) Activation of a coating section of the catheter in to ensure the middle of the wetting area. This wetting section in step e) is washed several times by wetting liquid (the End portions of the wetting area and thus any catheter sections there can flooded anyway become).
Prefers is also a variant of the method, in which in step c) the packaging for sealing at the transition area is folded over. This makes the sealing particularly easy, and can be done in particular without separate from the packaging aids.
Prefers becomes the liquid volume by the above-described step b) Vfl less than ½ · Vfree (ie up to ½) selected. As a rule, however, Vfl should amount to at least 20% of Vfrei.
A preferred embodiment the catheter system according to the invention provides that the packaging in the transition area between storage area and wetting region is formed kinkable, in particular along a marked bending line. In this embodiment, the packaging is sufficient flexible in order to be able to fold the packaging without leakage, wherein by the kinking a substantial blockage (sealing) of the transition area is achieved. The bend line is usually not only marked (for example by means of an imprint). In general, the bend line recognizable by the shape of the packaging, and only when kinking at the bending line enters an optimal sealing effect.
at A preferred embodiment of this embodiment are on the packaging at the transition area an internal rubber coating and / or internal sealing beads and / or a stiffener, in particular a U-shaped stiffener formed. Due to the rubber coating (rubber coating), the sealing effect is superimposed Inside of the packaging improved. Adjacent sealing beads (in usually also made of rubber) also achieve an improved liquid seal, especially if they are arranged so that they are bent in the State mesh. By means of a stiffening it is possible to each other lying walls the packaging over the Bracing stiffening (especially with fixatives), and to ensure a tight contact between the insides of the walls.
Especially Also preferred is a development in which a fixing agent, with which the package can be fixed in the bent state provided in particular wherein the fixing agent is one or more Includes adhesive dots or tape. In this training The kinked state does not need manual over the entire activation time be secured. The fixatives can also be used to the walls To stretch the packaging to the sealing effect in the bent state to improve, about an edge of a stiffener.
at Another advantageous embodiment is a closure means provided with the transition area lockable in particular wherein the closure means, for example a Plug, arranged inside the packaging and from the outside through the packaging can be actuated is. By means of a closure means, optionally supplemented by a counter bearing, a very good seal can be achieved. One according to the invention outer, separate Closure means would be to Example a clamp, which is the transition area compresses. However, preferred are integrated and / or captive closure means.
An advantageous embodiment provides that the transition region comprises a valve which blocks a return flow of wetting liquid from the wetting area into the storage area. Particularly preferred is a flutter valve. With a valve, the sealing of the wetting area is carried out automatically without manual intervention of the user of the catheter system. A very narrow passage, ie a transition area with a very narrow flow cross-section (about 1 mm 2 or less), which allows a significant flow of wetting liquid only under the application of external pressure, can fulfill the function of a valve according to the invention. In this case, the depot or the storage area must be squeezed out with force in the wetting area, and with simple pivoting of the package in the context of step d) or e) of the inventive method, there is no noticeable reflux.
at a preferred embodiment the catheter is complete arranged in the wetting area. In this case, no passage needs to a neighboring room, in which a spare (uncoated) part the catheter is arranged to be sealed. The packaging construction is easy and inexpensive.
A Another advantageous embodiment of the catheter system according to the invention provides that in the storage area a separate liquid packaging is arranged as a depot. The liquid pack can easily between top and bottom during production the packaging are inserted. The liquid pack is for example one Alupackung.
at an alternative embodiment is the storage area itself as a depot for the wetting liquid educated. This can save material.
Especially preferred is an embodiment at the transition area at one end of the elongated Wetting area opens. This simplifies the introduction of the wetting liquid into the wetting area, with the storage area up and the wetting area down is held.
A preferred development of this embodiment provides that in the end area where the transition area opens the insertion tip the catheter is arranged. This geometry allows a particularly intense watering the insertion tip at and after step d) of the method according to the invention. Furthermore offers the transition area to rip the packaging and removal of the catheter, since the storage area his Function already fulfilled at this time. The insertion tip to be inserted first should first be removed from the packaging to a To reduce the risk of contamination in the posterior catheter part (Das Introduce of the catheter into the urethra and the gradual lead out The catheter from the packaging can be used to avoid contamination often at the same time, the catheter still partially by means of the packaging can be taken).
Prefers is also an embodiment at the packaging in the transition area a target weak point for that open the packaging and the removal of the catheter has. The transition area offers itself as a weak point of weakness, since the storage area its Function already fulfilled has and therefore can be separated easily.
Prefers is also an embodiment at the on the catheter in the region of the insertion tip an insertion aid is put on or an insertion aid in the packaging in the vicinity the insertion tip is stored. With the insertion aid can be a direct touch (and possibly Contamination) of the catheter prior to insertion into the urethra become.
Finally it falls in the context of the present invention, a use of a method described above, catheter system according to the invention in a wetting process according to the invention described above.
Detailed description the invention and drawing
The The invention is illustrated in the drawing and is based on embodiments explained in more detail. It shows:
1 a schematic plan view of an inventive catheter system for carrying out the wetting method according to the invention;
2a a schematic side view of the catheter system of 1 , before step a) of the method according to the invention;
2 B the catheter system of 2a after step b) of the method according to the invention;
2c the catheter system of 2a after step c) of the method according to the invention;
2d the catheter system of 2a after step d) of the method according to the invention;
3a a schematic plan view of another embodiment of a catheter system according to the invention with a U-shaped stiffening at a bending line, in detail detail at the transition region;
3b the catheter system of 3a , in the schematic lateral cross section before a bend;
3c the catheter system of 3b after kinking to seal the transition area;
4a a schematic lateral cross section of another embodiment of a catheter system according to the invention with three sealing beads, in detail at the transition region, before a bend;
4b the catheter system of 4a after a bend to seal the transition area;
5 a schematic plan view of another embodiment of a catheter system according to the invention with a stopper, in detail at the transition region;
6 a schematic plan view of the catheter system of 1 after separating the storage area and after partially pushing out the catheter; 4
7 a schematic plan view of another embodiment of a catheter system according to the invention, with an insertion aid arranged in the packaging.
1 shows a schematic plan view of a first embodiment of a catheter system according to the invention. The catheter system comprises a hydrophilically coated, plastic-made, flexible catheter 1 and a packaging 2 in which the catheter 1 is arranged. The packaging 2 is here essentially formed by two successive glued or welded, transparent plastic films, so that a user (patient) can see inside the package. Between the plastic films various cavities are formed, the packaging 2 to give their function.
The catheter 1 is in an elongated wetting area 3 arranged, extending from one in 1 upper, first end or end 4 to a second, in 5 lower end or end 5 extends. The catheter 1 is so oriented that its front introducer 6 in the first end area 4 is arranged, and its rear funnel element 7 in the second end area 5 is arranged. The wetting area 3 encloses the catheter 1 so tight that it just bar with the funnel element 7 (which has the largest diameter on the catheter 1 forms) through the wetting area 3 can be carried out (pushed).
In the first end area 4 of the elongated wetting area 3 opens a transitional area 8th , The transition area 8th connects the wetting area 3 with a storage area 9 the packaging 2 , In the storage area 9 is a separate depot 10 which is filled with a wetting liquid, here sterile aqueous 0.9% NaCl solution (physiological saline solution). The transition area 8th is both opposite the storage area 9 as well as towards the wetting area 3 narrowed trained.
At the packaging 2 is a bend line 11 at the transition area 8th marked. At the bend line 11 is the packaging 2 also somewhat weaker, so that this at the same time a weak point of weakness suitable for tearing the packaging 2 represents.
On the outside of the packaging 2 is also a glue stick 12 (marked by dashed lines) provided, for example, formed by a double-sided adhesive tape.
The wetting area 3 has a volume of Vbb (in the embodiment shown with a package 2 From flexible plastic films Vbb refers to the maximum volume content of the wetting area 3 ). The catheter 1 in the embodiment shown completely in the wetting area 3 is arranged, occupies a volume (displacement volume) of Vkat, so that in the wetting area 3 a free volume Vfree = Vbb - Vkat remains. The depot 10 contains a volume Vfl of wetting liquid.
In the 2a to 2d becomes the wetting of the catheter according to the invention 1 in the packaging 2 illustrated. The 2a - 2d each show lateral cross-sectional views.
First, the packaging 2 held so that the storage area 9 above and the wetting area 3 below is; in the simplest case, the packaging 2 held vertically, see 2a , Then the depot 10 opened, here by exerting lateral pressure (see arrows 21 ), so the depot 10 at the lower edge 22 bursts.
Then it pours in the depot 10 contained wetting liquid by gravity following from the storage area 9 down through the transition area 8th in the wetting area 3 , This will make the wetting area 3 in a lower part with the wetting liquid 23 (hatched drawn) padded (flooded). The catheter 1 stands with his back part 24 in the wetting liquid 23 (see. 2 B ), reducing the hydrophilic coating of the catheter 1 at the back 24 reliably activated. The emptied depot 10 remains in the storage area 9 , In the Ausfüh shown example, the wetting range 3 about half with wetting liquid 23 filled. In other words, the volume Vfl of the wetting liquid 23 corresponds to about half the free volume Vfrei of the wetting area 3 , The front part 25 of the catheter 1 comes with the emptying of the depot 10 only briefly, and in places possibly not in contact with the wetting liquid.
To prepare for activation of the hydrophilic coating of the catheter 1 in the front part 25 now becomes the transition area 8th by folding over the packaging 2 at the bend line 11 sealed. This is the storage area 9 in 2 B to the left (see arrow 26 in 2 B ) on the tape 12 folded (dashed lines) folded.
The adhesive strip 12 fixes the folded position of the storage area 9 (see. 2c ). As a result of the bend at the bend line 11 becomes the flow area for wetting liquid 23 at the transition area 8th greatly reduced, leaving a reflux of wetting fluid 23 in the storage area 9 is essentially blocked.
Subsequently, the packaging 2 pivoted, leaving the transition area 8th below the wetting area 3 is arranged; in 2d became the packaging 2 rotated 180 °, leaving the catheter 1 is again vertical, with your introductory 6 directed downwards. Due to the pivoting is the wetting liquid 23 in the first end area 4 of the wetting area 3 flowed. Now the front part is 25 of the catheter 1 in the wetting liquid 23 which also causes the hydrophilic coating of the catheter 1 at the front part 25 is reliably wetted. The already intensely soaked rear part 24 of the catheter 1 protrudes from the wetting liquid 23 out. Due to the sealing of the transition area 8th There is no significant flow of wetting liquid 23 in the storage area 9 in this position of the packaging 2 ,
After all sections of the catheter 1 once in the wetting liquid 23 stood, is the catheter 1 have been soaked completely, and after sufficient waiting time (about 15-30 seconds), the catheter can 1 unpacked and inserted into the urethra of a patient.
In the 3a - 3c illustrates the operation of a U-shaped stiffener, which can improve the seal on a bend line.
In the schematic supervision of 3a is a section of a catheter system according to the invention at the transition region 8th illustrated. The base 31 a U-shaped stiffening 32 attached to the packaging 2 formed (for example, glued) is parallel to a bending edge 11 , Will now be the storage area 9 as in the lateral cross section of 3b marked with an arrow on the wetting area 3 or the adhesive strip attached there 12 folded down, so can the plastic film of the packaging 2 , in particular its outer wall 33 , over the top edge of the base 31 the U-shaped stiffening 32 be curious ( 3c ).
A particularly good tension is achieved if the width B of the adhesive strip 12 so big is that the two legs of the U-shaped stiffener 32 be spanned with, and also a respective area 35 the packaging 2 is spanned, on which the outer wall 33 and the inner wall 34 the packaging 2 are attached to each other (about welded), cf. 3a ,
Another possibility for improving the sealing effect when kinking is in the schematic lateral cross-sections of 4a . 4b shown. On the insides of the walls 33 . 34 the packaging 2 are in the transition area 8th a total of three sealing beads 41 . 42 . 43 formed, wherein in the bent state of the bead bulge 42 the outer wall 33 between the opposite sealing beads 41 . 43 the inner wall 34 engages and on the sealing beads 41 . 42 is applied.
In the 5 Another possibility is to seal a transition area 8th in another embodiment of a catheter system according to the invention. The transition area 8th is designed here as a rigid pipe section. In the wetting area 3 is on a leash 51 a stopper 52 attached by the packaging 2 manually inserted into the pipe section and then closes it.
6 illustrates the removal of a catheter from a catheter system according to the invention as in 1 shown. The packaging 2 was at the bend line 11 torn, causing the wetting area 3 was opened. The catheter 1 can then with the insertion tip 6 ahead of the packaging 2 be removed, the packaging 2 a direct contact of the catheter 1 in the back part 24 helps avoid.
To the catheter 1 also on a front part 25 to be able to take without direct contact, in the embodiment of a catheter system according to the schematic plan view of 7 an insertion aid 71 in the packaging 2 intended. The insertion aid 71 is in a storage room 72 between depot 10 and catheters 1 arranged. The packaging 2 has a bendline 11 and a target weakness 73 for tearing open the packaging 2 on. Alternatively, also at the target weak point 73 a bend takes place. To remove the Ka theters 1 This is first through a hole of the insertion 71 pushed and then the packaging 2 to target weakness 73 torn. The catheter 1 can then together with the attached insertion guide 71 be pushed out, and the insertion tip 6 can when inserted into the urethra with the insertion aid 71 be easily aligned. A direct contact of the catheter 1 near the insertion tip 6 can thus be avoided; instead, it is sufficient, the Einführhilfe 71 to touch from the outside. The insertion aid 71 is not introduced into the urethra.
In summary For example, the present invention describes a method of wetting a hydrophilic catheter within a closed package with a reduced amount of wetting liquid. A wetting room the packaging is so far filled with wetting liquid, that only a part of the hydrophilic coating of a catheter there flooded becomes. Then the wetting space is sealed, and the packaging is sealed panned that, too, the rest Parts of the hydrophilic coating of the catheter are flooded or at least lavishly lapped become. The seal is drainage of wetting liquid excluded from the wetting area. The seal is preferred without separate tools from the packaging, for example only by manual bending over. Sealing location is in particular the connection point between wetting area and storage area for the wetting liquid.
Method for wetting a hydrophilic urinal catheter ( 1 ) within a closed package ( 2 ) of the catheter ( 1 ) where the packaging ( 2 ) - an elongated wetting area ( 3 ) comprising at least one part of the hydrophilic urinal catheter ( 1 ), and - a storage area ( 9 ) with a depot ( 10 ) for a wetting liquid ( 23 ), whereby the depot ( 10 ) can be opened so that the wetting liquid ( 23 ) from the storage area ( 9 ) through a transitional area ( 8th ) in the wetting area ( 3 ), the process comprising the following steps: a) the depot ( 10 ) is opened, in particular by exerting external pressure on the depot ( 10 ) through the packaging ( 2 ); b) the wetting liquid ( 23 ) flows out of the storage area ( 9 ) in a free volume Vfrei of the elongated wetting area ( 3 ) and fills this to a maximum of 2/3 with wetting liquid ( 23 ), in particular the wetting liquid ( 23 ) by gravity to an end ( 5 ) of the elongated wetting area ( 3 ), which is from the transition area ( 8th ), the free volume V free being the volume Vbb of the wetting area (FIG. 3 ) minus the volume Vkat of the wetting area ( 3 ) arranged portion of the catheter ( 1 ); (c) the transitional area ( 8th ) is sealed, so that a reflux of wetting liquid ( 23 ) from the wetting area ( 3 ) in the storage area ( 9 ) is at least largely blocked; d) the packaging ( 2 ) is pivoted, in particular so that the wetting liquid ( 23 ) by gravity to an end ( 4 ) of the elongated wetting area ( 3 ) which flows into the transition area ( 8th ) is nearby.
A method according to claim 1, characterized in that pass after step d) at least 15 seconds, preferably at least 30 seconds, before the catheter ( 1 ) and inserted into the urethra of a patient.
Method according to one of the preceding claims, characterized in that after step d) a further step e) takes place, with e) The packaging ( 2 ) is pivoted back and forth so that the wetting liquid ( 23 ) in the elongated wetting area ( 3 ) between its ends ( 4 . 5 ) flows back and forth.
Method according to one of the preceding claims, characterized in that in step c) the packaging ( 2 ) for sealing at the transition area ( 8th ) is folded over.
Method according to one of the preceding claims, characterized characterized in that in step b) the free volume Vfrei maximum filled to 1/2 becomes
Catheter system comprising - a urinary catheter ( 1 ) with a hydrophilic coating and - a packaging ( 2 ), in which the catheter ( 1 ), the packaging ( 2 ) - an elongated wetting area ( 3 ) containing at least one part of the catheter to be wetted ( 1 ), and - a storage area ( 9 ) with a depot ( 10 ) for a wetting liquid ( 23 ), whereby the depot ( 10 ) can be opened so that the wetting liquid ( 23 ) from the storage area ( 9 ) through a transitional area ( 8th ) in the wetting area ( 3 ), and that the transitional area ( 8th ) is formed sealable, so that after opening the depot ( 10 ) a reflux of wetting liquid ( 23 ) from the wetting area ( 3 ) in the storage area ( 9 ) can be largely prevented, characterized in that for the volume Vfl of the wetting liquid ( 23 ) of the depot ( 10 ), the volume Vbb of the wetting area ( 3 ) and the volume Vkat of the part of the catheter ( 1 ), which in the wetting area ( 3 ), Vfl ≦ 2/3 · (Vbb-Vkat), and preferably Vfl ≦ 1/2 · (Vbb-Vkat).
Catheter system according to claim 6, characterized in that the packaging ( 2 ) in the transition area ( 8th ) between storage area ( 9 ) and wetting range ( 3 ) is bendable, in particular along a marked bending line ( 11 ).
Catheter system according to claim 7, characterized in that on the packaging ( 2 ) at the transition area ( 8th ) an internal rubber coating and / or internal sealing beads ( 41 . 42 . 43 ) and / or a stiffening, in particular a U-shaped stiffening ( 32 ), are formed.
Catheter system according to claim 7 or 8, characterized in that a fixing means with which the packaging ( 2 ) can be fixed in the bent state, is provided, in particular wherein the fixing means one or more adhesive dots or adhesive strips ( 12 ).
Catheter system according to claim 6, characterized in that a closure means is provided, with which the transition region ( 8th ), in particular wherein the closure means, for example a stopper ( 52 ), inside the packaging ( 2 ) and from the outside through the packaging ( 2 ) is actuated therethrough.
Catheter system according to claim 6, characterized in that the transition region ( 8th ) comprises a valve which provides a reflux of wetting liquid ( 23 ) from the wetting area ( 3 ) in the storage area ( 9 ) locks.
Catheter system according to one of claims 6 to 11, characterized in that the catheter ( 1 ) completely in the wetting area ( 3 ) is arranged.
Catheter system according to one of claims 6 to 12, that in the storage area ( 9 ) a separate liquid pack ( 10 ) is arranged as a depot.
Catheter system according to one of claims 6 to 12, characterized in that the storage area ( 9 ) even as a depot for the wetting liquid ( 23 ) is trained.
Catheter system according to one of claims 6 to 14, characterized in that the transition region ( 8th ) at an end region ( 4 . 5 ) of the elongated wetting area ( 3 ) opens.
Catheter system according to claim 15, characterized in that in the end region ( 4 ), where the transition area ( 8th ), the insertion tip ( 6 ) of the catheter ( 1 ) is arranged.
Catheter system according to one of claims 6 to 16, characterized in that the packaging ( 2 ) in the transition area ( 8th ) a target weak point ( 11 ; 73 ) for opening the package ( 2 ) and the removal of the catheter ( 1 ) having.
Catheter system according to one of claims 6 to 17, characterized in that on the catheter ( 1 ) in the region of the insertion tip ( 6 ) an insertion aid is attached or an insertion aid ( 71 ) in the packaging ( 2 ) near the insertion tip ( 6 ) is stored.
Use of a catheter system according to one of claims 6 to 18 in a method according to one of claims 1 to 5.
DE200710006905 2007-02-13 2007-02-13 A method of wetting a hydrophilic urinal catheter and associated catheter system Revoked DE102007006905B4 (en)
DE200710006905 DE102007006905B4 (en) 2007-02-13 2007-02-13 A method of wetting a hydrophilic urinal catheter and associated catheter system
DK08002133.0T DK1958656T3 (en) 2007-02-13 2008-02-05 Method for wetting a hydrophilic urinary catheter and associated catheter system
EP08002133.0A EP1958656B1 (en) 2007-02-13 2008-02-05 Method for wetting a hydrophilic urine catheter and corresponding catheter system
DE102007006905A1 DE102007006905A1 (en) 2008-08-21
DE102007006905B4 true DE102007006905B4 (en) 2008-12-18
ID=39298327
DE200710006905 Revoked DE102007006905B4 (en) 2007-02-13 2007-02-13 A method of wetting a hydrophilic urinal catheter and associated catheter system
EP (1) EP1958656B1 (en)
DE (1) DE102007006905B4 (en)
DK (1) DK1958656T3 (en)
EP0252918B1 (en) * 1985-04-30 1990-12-19 Astra Meditec AB A wetting and storage device for a catheter
EP0677299B1 (en) * 1994-04-13 2001-07-04 VIA LOG Medikalprodukte GmbH Kosmetik - Medien Package for a medical instrument
DE29724914U1 (en) * 1996-01-25 2006-02-23 Astra Tech Ab Hydrophilic urinary catheter having a wetting receptacle to apply lubrication for fitting - with wetting fluid container with discharge outlet for water or saline solution for applying fluid to receiving area
2007-02-13 DE DE200710006905 patent/DE102007006905B4/en not_active Revoked
2008-02-05 DK DK08002133.0T patent/DK1958656T3/en active
2008-02-05 EP EP08002133.0A patent/EP1958656B1/en active Active
DE102007006905A1 (en) 2008-08-21
EP1958656A1 (en) 2008-08-20
EP1958656B1 (en) 2016-11-23
DK1958656T3 (en) 2017-03-06
2011-12-02 R006 Appeal filed
2012-03-02 R008 Case pending at federal patent court
2017-07-04 R037 Decision of examining division or of federal patent court revoking patent now final