EP0035528A1 - Catheter, notamment catheter veineux - Google Patents
Catheter, notamment catheter veineuxInfo
- Publication number
- EP0035528A1 EP0035528A1 EP19800901724 EP80901724A EP0035528A1 EP 0035528 A1 EP0035528 A1 EP 0035528A1 EP 19800901724 EP19800901724 EP 19800901724 EP 80901724 A EP80901724 A EP 80901724A EP 0035528 A1 EP0035528 A1 EP 0035528A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- catheter
- identification
- distal end
- interruptions
- irregularities
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 210000003462 vein Anatomy 0.000 title 1
- 230000004807 localization Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 210000003109 clavicle Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1076—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions inside body cavities, e.g. using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/12—Arrangements for detecting or locating foreign bodies
Definitions
- the invention relates to a catheter, in particular a venous catheter, with at least one identifying thread that weakens in the longitudinal direction in the catheter wall and weakens X-ray radiation.
- identification threads are known.
- the identification threads are used to determine the exact position of the catheter in the body of the respective patient when working under X-ray control.
- the invention has for its object to improve the described, known catheters such that the aforementioned risk is eliminated and reliable control at all times the completeness of the catheter is made possible and that the reliable detection of the respective position of the catheter in the body of the respective patient is ensured.
- the identification threads have a predetermined number of irregularities arranged at corresponding distances from the distal end of the catheter, and in that the distances between the distal end of the catheter and the distal last irregularities and the non-uniformities which follow one another in the longitudinal direction match. Because of the special arrangement of the non-uniformities, characterized by a predetermined number and predetermined distances, it can be checked at any time and in particular also during the operation whether the catheter is complete or in the correct position. If the control shows that a part of the catheter has been sheared off or torn off, relief measures can be initiated immediately. If the control shows that the catheter is not in the desired position, its position can be corrected.
- the non-uniformities can consist of widening of the identification threads, of interruptions in the identification threads, or of ring-shaped, X-ray radiation-weakening regions arranged in the region of interruptions of the identification threads in a cross-sectional plane of the catheter.
- the first interruptions when viewing the catheter from the distal end of the catheter can be characterized by a ring, the second interruptions by two parallel rings, etc. It It is also advisable to mark the distal end of the catheter with an annular area that weakens X-rays.
- FIG. 2 shows the end section according to FIG. 1 in cross section
- FIG. 4 shows a further embodiment of the end section according to FIG. 1.
- FIG. 1 shows a simplified representation of a venous catheter 1 which, for localization under X-ray control, is provided with three identification threads 2 running in the longitudinal direction in the catheter wall and attenuating X-ray radiation.
- the identification threads 2 are evenly distributed over the circumference of the venous catheter 1, as can be seen particularly clearly from FIG.
- a catheter despite the identification threads due to the overlay of shadowing structures (bones and soft tissues such as heart and lungs) are also difficult to locate under unfavorable circumstances.
- shadowing structures bones and soft tissues such as heart and lungs
- the identification threads 2 have a predetermined number of irregularities arranged at corresponding distances from the distal catheter end 3, which are explained in detail below.
- the distances between the distal catheter end 3 and the distal last irregularities and the consecutive irregularities in the longitudinal direction match.
- three such irregularities can be provided at distances of 10, 20 and 30 cm from the distal end 3 of the catheter.
- the non-uniformities consist of interruptions 4 in the identification threads 2.
- FIG. 3a shows an exemplary embodiment in which the non-uniformities are formed by widenings 5 of the identification threads 2.
- FIG. 3b shows an exemplary embodiment in which an annular area 6 which attenuates X-rays is additionally provided in the area of the interruptions 4 in a cross-sectional plane of the venous catheter 1.
- FIG. 3c shows an exemplary embodiment in which an annular region 7 which attenuates X-rays is additionally provided at the distal end 3 of the catheter.
- FIG. 4 finally shows an external view of a venous catheter 1, as it were without X-ray radiation, so that the identification threads 2 explained above cannot be recognized.
- an optically visible end marking is provided on the distal end 3 of the catheter, which in the illustrated case consists of a plurality of colored rings 8 arranged in parallel and at short mutual distances, each of which has a width of approximately 1 mm, for example, and a mutual distance of likewise 1 mm are arranged, while the annular region 7 forming an X-ray-effective end marking preferably has a width of approximately 5 mm.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Anesthesiology (AREA)
- Dentistry (AREA)
- Pulmonology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Hematology (AREA)
- High Energy & Nuclear Physics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Le catheter, notamment catheter veineux, presente des fils d'identification (2) attenuant les rayons X, disposes longitudinalement dans la paroi du catheter. Ces fils permettent le controle et la localisation du catheter (1) dans le corps du patient. Des irregularites (4, 5, 6) sont menagees en nombre predetermine en direction longitudinale et a distances prefixees de l'extremite distale (3) du catheter. Ces irregularites peuvent consister en elargissements (5) ou en interruptions (4) des fils d'identification. Des zones annulaires (6) attenuant les rayons X, disposees dans la region des interruptions (4), peuvent aussi etre prevues. Un nombre variable de ces zones annulaires (6) peut etre arrange avec les differentes irregularites des fils d'identification. Une partie annulaire attenuant les rayons X peut etre menagee a l'extremite distale du catheter (3). Elle peut etre formee de plusieurs rondelles placees parallelement cote a cote, visibles optiquement (p. ex. colorees).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19797925924 DE7925924U1 (de) | 1979-09-13 | 1979-09-13 | Katheter |
DE7925924U | 1979-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0035528A1 true EP0035528A1 (fr) | 1981-09-16 |
Family
ID=6707327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19800901724 Withdrawn EP0035528A1 (fr) | 1979-09-13 | 1981-03-23 | Catheter, notamment catheter veineux |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0035528A1 (fr) |
DE (1) | DE7925924U1 (fr) |
WO (1) | WO1981000676A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2212267B (en) * | 1987-11-11 | 1992-07-29 | Circulation Res Ltd | Methods and apparatus for the examination and treatment of internal organs |
FR2630215B1 (fr) * | 1988-04-13 | 1991-02-22 | Benhaim Jean | Dispositif de mesure et procede de calcul de l'agrandissement radiologique en une seule mesure |
GB2224801A (en) * | 1988-11-10 | 1990-05-16 | Circulation Res Ltd | Catheters |
GB2263641A (en) * | 1992-01-30 | 1993-08-04 | Intravascular Res Ltd | Determining catheter location |
US5669878A (en) * | 1992-01-30 | 1997-09-23 | Intravascular Research Limited | Guide wire for a catheter with position indicating means |
DE10329251A1 (de) * | 2003-06-25 | 2005-01-13 | Biotronik Meß- und Therapiegeräte GmbH & Co. | Intravaskuläre Vorrichtung |
DE102004023642A1 (de) * | 2004-05-10 | 2005-12-08 | Restate Patent Ag | Katheter-Führungsdraht insbesondere für die perkutane transluminale Coronar-Angioplastik |
EP3202433A1 (fr) * | 2016-02-04 | 2017-08-09 | Berlin Heart GmbH | Greffon d'evacuation et systeme comprenant une pompe a sang et un greffon d'evacuation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR947866A (fr) * | 1943-01-30 | 1949-07-15 | Perfectionnements apportés aux sondes et dispositifs analogues pour mesurer et déterminer le siège et la position d'objets vivants ou non, donnant des ombres pour les rayons chi, dans le corps humain ou celui des animaux | |
US3155091A (en) * | 1963-04-30 | 1964-11-03 | Diagnosto Associates Ltd | Diagnostic device for the detection and location of the sites of internal anatomicalabnormalities |
GB1049353A (en) * | 1965-04-22 | 1966-11-23 | Fred Estes Pittman | Means for locating internal bleeding |
US3788328A (en) * | 1971-04-29 | 1974-01-29 | Sherwood Medical Ind Inc | Cardiovascular catheter |
GB1511269A (en) * | 1974-12-20 | 1978-05-17 | Sherwood Medical Ind Inc | Method of making a catheter with x-ray opaque markings |
-
1979
- 1979-09-13 DE DE19797925924 patent/DE7925924U1/de not_active Expired
-
1980
- 1980-08-05 WO PCT/EP1980/000092 patent/WO1981000676A1/fr unknown
-
1981
- 1981-03-23 EP EP19800901724 patent/EP0035528A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8100676A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1981000676A1 (fr) | 1981-03-19 |
DE7925924U1 (de) | 1980-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19810924 |