WO1998032484A1 - Kathetereinführungsbesteck - Google Patents
Kathetereinführungsbesteck Download PDFInfo
- Publication number
- WO1998032484A1 WO1998032484A1 PCT/CH1998/000001 CH9800001W WO9832484A1 WO 1998032484 A1 WO1998032484 A1 WO 1998032484A1 CH 9800001 W CH9800001 W CH 9800001W WO 9832484 A1 WO9832484 A1 WO 9832484A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- sealing
- catheter delivery
- sealing disc
- kit according
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M39/0606—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof without means for adjusting the seal opening or pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/062—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
- A61M2039/064—Slit-valve
Definitions
- the present invention relates to a catheter introducer with a hemostasis valve for introducing a catheter into a bloodstream.
- Catheter introducer sets are used for the simple and quick repeated insertion and removal of catheters and other long rod-shaped objects into larger blood vessels.
- the proximal area of a working sheath is placed in the vessel lumen.
- This tubular hollow body not only forms a temporary access to the vessel, but also provides a communicating one It is therefore necessary to prevent blood from escaping at the distal end of the working sheath, where there is normally a valve housing which, by means of a valve device, seals the channel formed by the working sheath to the outside of catheters and other elongated medical instruments Different diameters enable the working sheath and the subsequent movement of the sheath without liquid being able to pass through the valve device.
- EP 0 067 007 (ARGON MEDICAL Corp.) and EP 0 157 906 (E. WECK Inc.) describe a hemostasis valve which consists of a disc-shaped seal with a central opening and a thimble-like slit diaphragm made of natural or synthetic rubber and has a lateral support rib.
- a valve of a medical device is known from EP 0 198 962 (TERUMO), the two diaphragms of which consist of elastomers such as natural or synthetic rubber.
- the disc-shaped diaphragms are provided with intersecting slits on both sides, which, however, do not penetrate the discs at their full height.
- EP 0 308 815 (CORDIS Corp.) describes a separating valve consisting of an elastomeric separating part which has a plurality of radial slots which penetrate the separating part in a helical manner.
- the separator consists of Silicone rubber with a hardness of 30-50 Shore A and with a share of 2 to 10 percent by weight of free silicone as a lubricant.
- EP 0 316 096 (DIAG Corp.) describes an integral ostease
- Valve seal described which has both a sealing neck and sealing lips and made of silicone rubber or
- Latex is made.
- Valve disks all made of latex or silicone rubber.
- EP 0 370 720 (TERUMO) and EP 0 370 721 (TERUMO) are integral hamostatic valve bodies made of natural or
- EP 0 416 467 (TERUMO) describes a medical valve consisting of a single disc made of natural or
- Synthetic rubber is made and has two intersecting slots. Each slot has a different one
- the opening width of the slots on one side are different.
- EP 0 513 969 (DIAG Corp.) a further development of a hamostasis valve according to EP 0 316 096 (DIAG Corp.) is known, which in turn consists of natural or synthetic rubber.
- EP 0 649 317 (UNISURGE Inc.) describes a one-piece valve construction of an insertion set made of elastomeric material, which consists of a cylindrical wall and an upper wall perpendicular to it with a central opening and a radially slotted lower wall projecting downwards.
- the valve construction is made of hard 40 to 70 Shore A silicone rubber.
- EP 0 692 278 describes a diaphragm of a hamostasis valve made of silicone rubber, the Shore A hardness of which is between 20 and 50.
- the elastomeric material from which the diaphragm is made is mixed with additives that are intended to increase the lubricity.
- valves made of elastomers can be stretched well, but are only slightly compressible.
- the previously known valves must therefore be stretched and deformed in at least two spatial directions in order to accommodate and seal catheters and other objects with different diameters.
- the elastomer material can only contract.
- the vector of this contraction force is mostly directed against the force required to seal a slot. Accordingly, it has been shown that valves from the used materials a satisfactory seal can hardly be achieved with just one diaphragm.
- the present invention is therefore based on the object of being as simple as possible, easy to produce and yet functioning properly
- FIG. 1 shows a cross-section through the valve-carrying area of the insertion set with fully emitted guided dilator, the sealing element being drawn in on the right of the center line L and omitted on the left of the center line;
- FIG. 2 shows an enlarged view of the hamostasis valve with the surrounding housing, the dilator being removed to the left of the center line and an inserted dilator being shown to the right of the center line
- Figure 3a is a perspective view of the valve body as an exploded view
- FIG. 3b shows a perspective view of a further embodiment of the valve body
- FIG. 3c shows a perspective view of a further embodiment of the valve body
- FIG. 4 shows a cross section through a valve according to FIG. 3b.
- the two-part housing G shown in FIG. 1 consists of a housing body 1 and a housing cap 2.
- the housing body 1 of the catheter guide set essentially represents a hollow cylinder with a central opening, which gradually extends from its distal 12 to its proximal 13 area rejuvenated and a side Connection piece 11 carries.
- a valve support surface 19 In the interior of the housing body 1 there is a valve support surface 19 directly above the entry of the side channel 111 and perpendicular to the longitudinal axis L.
- a sealing element 10 becomes clamped between the support surface 19 and this valve clamping surface 28 held positively and non-positively.
- the sealing element 10 divides the interior of the housing G into a distal 21 and a proximal cavity 14.
- the proximal cavity 14 communicates with the central cavity Z, which is formed by a working sheath 5.
- the task of the sealing element 10 is to prevent the passage of liquid from the proximal 14 to the distal 21 cavity and the passage of air in the opposite direction.
- An inner side wall 15 of the proximal cavity 14 tapers conically downwards and thereby facilitates the insertion of elongated objects into the central channel Z of the working scabbard 5.
- This working scabbard 5 is an elongated flexible tube which is sealed at its distal end by a proximal wall 13 of the housing body 1 is enclosed and held non-positively.
- a conical grommet 4 made of stretchable material is inserted over the proximal end 13 of the housing body 1, the inner diameter of which in the unstretched state is smaller than the outer diameter of the proximal housing wall 13.
- a retaining rib 18 which extends in a ring on the outside of the proximal housing wall 13 engages when the grommet 4 is attached m a circumferential recess 44 on the inner side of the sleeve and thereby supports the non-positive holding of the sleeve 4 on the housing body 1.
- the sleeve 4 protrudes beyond the housing body 1 and encloses the working sheath 5 with its proximal area 42.
- the sleeve 4 has a lateral fastening tab 41, which is punched 43.
- the U-shaped housing cap 2 has the inner 22 and an outer wall 23.
- a plurality of radially resilient retaining fingers 24 extend in the distal extension of the inner housing wall 22, each of which has an inwardly projecting bead 25 and an upper one which is perpendicular to the longitudinal axis L. , Have stop surface 27.
- the circumferential, U-shaped cross-section recess, which is formed by the inner 22 and outer 23 wall of the cap 2, is dimensioned such that it can accommodate the distal end 12 of the housing body 1 when the cap 2 is placed on the housing body 1 becomes.
- An elongated dilator tube 31 of a dilator 3 can be inserted into the working sheath 5 until a stop 34 of a dilator end piece 33 strikes the stop surface 27.
- the radially resilient holding fingers 24 hold a proximal part of a dilator end piece 33 with their beads 25.
- the assembly of the catheter guiding unit is very simple, since all parts are snapped together and therefore no gluing, Welding or screwing is necessary. Only the distal end of the working sheath 5 has to be firmly connected to the housing body 1 by gluing or welding in a first step. The other parts can of course still be glued, heat or ultrasonically welded.
- the cap 2 When the cap 2 is put on, it is pushed over the distal region of the housing wall 12 until a retaining rib 26, which runs around the inside of the outer wall 26, snaps into a recess 16 running around the outside of the distal wall of the housing.
- the height of the inner cap wall 22 and the position of the recess 16 and the holding rib 26 are coordinated with one another such that the valve clamping surface 28 of the inner cap wall 22 is 2 m in the axial direction m from the valve support surface 19 when the cap is fitted and snapped on, which is at most the same size or less than the height H of the sealing element 10 used.
- the pressure on the two support disks 101, 102 is passed on to the sealing disk 103.
- the sealing element 10 consists of two perforated support disks 101, 102 made of medical steel or hard plastic with an interposed sealing disk 103 made of soft-elastic foam plastic, the at least two radially extending slots that do not extend to the periphery 104 has.
- the slots 104 penetrate the sealing washer 103 at its full height.
- at least three slots form a Y-shaped cut, or four slots form an X-shaped cut.
- FIG. 3c shows a further variant of a sealing washer with six radial incisions.
- further embodiments of the sealing element 10 according to the invention with a different number of slots or other slot shapes are possible.
- the diameter O ⁇ of a central passage opening 105 of the support disk 101, 102 is larger than the diameter of the largest object to be carried out.
- the height of the support washers 101, 102 is several times lower than the height of the sealing washer 103. Since the distal and proximal support washers 101, 102 must prevent the sealing washer 103 from deflecting in the direction of the longitudinal axis L, the size of the central through hole 105 is limited . It must be adapted to the height and the stability of the sealing disk 103.
- the inner diameter Di of the central through hole 105 3.6 mm and the height of the sealing washer 103 2 mm.
- the height of the sealing washer 103 can, however, optionally be 1 to 3 mm.
- the width expediently becomes DT .
- the central opening 105 of the support disks 101, 102, the dimensioning of the sealing disk 103 with its slots 104, and the diameter of the working sleeve 5 matched to certain standardized catheter sizes and diameters.
- the nominal sizes according to DIN 13 273 can be used.
- the associated Char ⁇ ere number can be attached to the spout, for example. Individual, clearly visible parts of the introductory set can also be marked with the corresponding DIN color code.
- the sealing elements according to the invention meet the high demands on the function by using novel materials for producing the sealing disk 103.
- Soft-elastic foam plastics with a density of 300 to 600 g / 1, preferably 450 g / 1 have the required material properties.
- the microporous material with pore sizes from 10 to 1000 ⁇ m compressible and impregnable, it is preferably open-pore. However, it can also be partially closed-pore.
- the sealing disk 103 When the catheter is inserted, pulled out and moved, the sealing disk 103 is only slightly deflected in the axial direction, since the two support disks 101, 102 prevent this. If an object is pushed through the slots 104 of the sealing disk 103, the lips formed by the slots 104 are laterally printed outwards from the central axis L and simultaneously compressed. This lateral compression instead of an axial deflection is supported by the following factors: the foamed material is well compressible but not very stretchable; the friction between catheter and sealing disk 103 is reduced by lubricants, such as silicone or paraffmol; the height of the sealing disk 103 is greater than the radius of the central opening 105 of the support disks 101, 102 and thus greater than the radius of the largest component to be carried out.
- the area of the catheter which is in direct contact with the sealing disk 103 m therefore remains relatively constant even when the catheter is moved back and forth.
- a lubricant such as silicone or paraffmol, keep forces that act on the catheter when moving low and constant. The latter is crucial for sensory control of the catheter movement by the doctor and thus decisive for the acceptance of the product by the user.
- the soft-elastic foam plastic has sufficient elasticity to hold the incisions 104 tight under physiological pressure conditions with the catheter removed and as a liquid and gas-tight barrier between the proximal cavity 14 and the distal cavity 21.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH152/97 | 1997-01-24 | ||
CH15297 | 1997-01-24 |
Publications (1)
Publication Number | Publication Date |
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WO1998032484A1 true WO1998032484A1 (de) | 1998-07-30 |
Family
ID=4180439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1998/000001 WO1998032484A1 (de) | 1997-01-24 | 1998-01-06 | Kathetereinführungsbesteck |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1998032484A1 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000064527A1 (en) * | 1999-04-22 | 2000-11-02 | Scimed Life Systems, Inc. | Valved introducer sheath and related methods |
US6808509B1 (en) | 1999-04-22 | 2004-10-26 | Scimed Life Systems, Inc. | Valved introducer sheath and related methods |
DE102011088337A1 (de) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
DE102011088336A1 (de) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
DE202013100459U1 (de) | 2013-02-01 | 2014-05-05 | Karl Storz Gmbh & Co.Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
EP2762094A1 (de) | 2013-02-01 | 2014-08-06 | Karl Storz GmbH & Co. KG | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
EP3015083A1 (de) | 2014-11-03 | 2016-05-04 | Karl Storz GmbH & Co. KG | Dichteinrichtung zur abdichtung einer durchführung für ein medizinisches instrument |
USD808013S1 (en) | 2016-10-27 | 2018-01-16 | Smiths Medical Asd, Inc. | Catheter |
US10675440B2 (en) | 2016-02-18 | 2020-06-09 | Smiths Medical Asd, Inc. | Closed system catheter |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067007A1 (de) | 1981-05-28 | 1982-12-15 | Argon Medical Corp. | Auswechselbares hämostatisches Ventil |
EP0198962A1 (de) | 1984-12-28 | 1986-10-29 | TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION | Ventileinrichtung für ein medizinisches Gerät |
EP0308815A2 (de) | 1987-09-21 | 1989-03-29 | Cordis Corporation | Ventil für medizinisches Instrument |
EP0316096A2 (de) | 1987-11-12 | 1989-05-17 | Daig Corporation | Universelle Hämostasekanüle |
EP0369314A2 (de) | 1988-11-18 | 1990-05-23 | Edward Weck, Inc. | Hämostatisches Ventil |
EP0370721A2 (de) | 1988-11-21 | 1990-05-30 | Schneider (Usa) Inc. | Hämostatisches Ventil |
EP0370720A2 (de) | 1988-11-21 | 1990-05-30 | Schneider (Usa) Inc. | Hämostatische Ventile |
US4966586A (en) * | 1987-09-04 | 1990-10-30 | Vaillancourt Vincent L | Closed system over-the-needle I.V. catheter |
EP0416467A2 (de) | 1989-09-05 | 1991-03-13 | Terumo Kabushiki Kaisha | Medizinisches Ventil und Herstellungsverfahren, Katheter und Ventil sowie Kathetereinheit |
US5098393A (en) * | 1988-05-31 | 1992-03-24 | Kurt Amplatz | Medical introducer and valve assembly |
EP0513969A1 (de) | 1991-05-17 | 1992-11-19 | Daig Corporation | Hämostatisches Ventil |
US5207656A (en) * | 1990-04-19 | 1993-05-04 | Cordis Corporation | Medical instrument valve having foam partition member |
EP0649317A1 (de) | 1992-07-09 | 1995-04-26 | Unisurge, Inc. | Ventil für eine einführeinrichtung |
EP0692278A1 (de) | 1994-07-15 | 1996-01-17 | Cordis Corporation | Katheter hämostatisches Ventil |
-
1998
- 1998-01-06 WO PCT/CH1998/000001 patent/WO1998032484A1/de active Application Filing
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0157906A1 (de) | 1981-05-28 | 1985-10-16 | Edward Weck Inc. | Membran für ein selbstschliessendes hämostatisches Ventil |
EP0067007A1 (de) | 1981-05-28 | 1982-12-15 | Argon Medical Corp. | Auswechselbares hämostatisches Ventil |
EP0198962A1 (de) | 1984-12-28 | 1986-10-29 | TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION | Ventileinrichtung für ein medizinisches Gerät |
US4966586A (en) * | 1987-09-04 | 1990-10-30 | Vaillancourt Vincent L | Closed system over-the-needle I.V. catheter |
EP0308815A2 (de) | 1987-09-21 | 1989-03-29 | Cordis Corporation | Ventil für medizinisches Instrument |
EP0316096A2 (de) | 1987-11-12 | 1989-05-17 | Daig Corporation | Universelle Hämostasekanüle |
US5098393A (en) * | 1988-05-31 | 1992-03-24 | Kurt Amplatz | Medical introducer and valve assembly |
EP0369314A2 (de) | 1988-11-18 | 1990-05-23 | Edward Weck, Inc. | Hämostatisches Ventil |
EP0370721A2 (de) | 1988-11-21 | 1990-05-30 | Schneider (Usa) Inc. | Hämostatisches Ventil |
EP0370720A2 (de) | 1988-11-21 | 1990-05-30 | Schneider (Usa) Inc. | Hämostatische Ventile |
EP0416467A2 (de) | 1989-09-05 | 1991-03-13 | Terumo Kabushiki Kaisha | Medizinisches Ventil und Herstellungsverfahren, Katheter und Ventil sowie Kathetereinheit |
US5207656A (en) * | 1990-04-19 | 1993-05-04 | Cordis Corporation | Medical instrument valve having foam partition member |
EP0513969A1 (de) | 1991-05-17 | 1992-11-19 | Daig Corporation | Hämostatisches Ventil |
EP0649317A1 (de) | 1992-07-09 | 1995-04-26 | Unisurge, Inc. | Ventil für eine einführeinrichtung |
EP0692278A1 (de) | 1994-07-15 | 1996-01-17 | Cordis Corporation | Katheter hämostatisches Ventil |
Non-Patent Citations (1)
Title |
---|
DIN 13273 |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6808509B1 (en) | 1999-04-22 | 2004-10-26 | Scimed Life Systems, Inc. | Valved introducer sheath and related methods |
WO2000064527A1 (en) * | 1999-04-22 | 2000-11-02 | Scimed Life Systems, Inc. | Valved introducer sheath and related methods |
US9398923B2 (en) | 2011-12-13 | 2016-07-26 | Karl Storz Gmbh & Co. Kg | Sealing means for the sealing of an introduction facility for a medical instrument |
DE102011088337A1 (de) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
DE102011088336A1 (de) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
EP2604203A1 (de) | 2011-12-13 | 2013-06-19 | Karl Storz GmbH & Co. KG | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
DE202013100459U1 (de) | 2013-02-01 | 2014-05-05 | Karl Storz Gmbh & Co.Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
EP2762094A1 (de) | 2013-02-01 | 2014-08-06 | Karl Storz GmbH & Co. KG | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
DE102013101019A1 (de) | 2013-02-01 | 2014-08-07 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
US9622776B2 (en) | 2013-02-01 | 2017-04-18 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
EP3015083A1 (de) | 2014-11-03 | 2016-05-04 | Karl Storz GmbH & Co. KG | Dichteinrichtung zur abdichtung einer durchführung für ein medizinisches instrument |
DE102014115985A1 (de) | 2014-11-03 | 2016-05-19 | Karl Storz Gmbh & Co. Kg | Dichteinrichtung zur Abdichtung einer Durchführung für ein medizinisches Instrument |
US10624670B2 (en) | 2014-11-03 | 2020-04-21 | Karl Storz Se & Co. Kg | Sealing device for sealing a lead-through for a medical instrument |
US10675440B2 (en) | 2016-02-18 | 2020-06-09 | Smiths Medical Asd, Inc. | Closed system catheter |
USD808013S1 (en) | 2016-10-27 | 2018-01-16 | Smiths Medical Asd, Inc. | Catheter |
USD893711S1 (en) | 2016-10-27 | 2020-08-18 | Smiths Medical Asd, Inc. | Catheter assembly |
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