DE9116000U1 - Cochlea catheter for the treatment of narrowed sclerotic arteries of the heart and body arteries - Google Patents
Cochlea catheter for the treatment of narrowed sclerotic arteries of the heart and body arteriesInfo
- Publication number
- DE9116000U1 DE9116000U1 DE9116000U DE9116000U DE9116000U1 DE 9116000 U1 DE9116000 U1 DE 9116000U1 DE 9116000 U DE9116000 U DE 9116000U DE 9116000 U DE9116000 U DE 9116000U DE 9116000 U1 DE9116000 U1 DE 9116000U1
- Authority
- DE
- Germany
- Prior art keywords
- catheter
- arteries
- narrowed
- heart
- treatment
- 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.)
- Expired - Lifetime
Links
- 210000001367 artery Anatomy 0.000 title claims description 9
- 230000002784 sclerotic effect Effects 0.000 title claims description 3
- 210000003477 cochlea Anatomy 0.000 title description 2
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 239000011253 protective coating Substances 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 208000005189 Embolism Diseases 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 2
- 208000031104 Arterial Occlusive disease Diseases 0.000 description 1
- 208000021328 arterial occlusion Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/32075—Pullback cutting; combined forward and pullback cutting, e.g. with cutters at both sides of the plaque
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00681—Aspects not otherwise provided for
- A61B2017/00685—Archimedes screw
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
Schneckenkatheter Km-'ß-ehandlung von verengten sklerosierten Arterien des Herzens und der Körperschlagadern Cochlea catheter for the treatment of narrowed sclerosed arteries of the heart and the body arteries
Stand_der_TechnikState of the art
Die herkömmliche Beseitigung arterieller Verschlüsse geschieht durch Katheter, dieThe conventional removal of arterial occlusions is done by catheters, which
a) das verschließende Material auseinanderpreßen und dadurch den arteriellen Fluß erhöhen odera) compress the occlusive material and thereby increase arterial flow or
a) durch rotierende Schälmesser, die einen Teil der Ablagerungen abtragen und durch eine Absaugvorrichtung das abgetragene Material weitgehend absaugen.a) by rotating scraping blades, which remove part of the deposits and largely remove the removed material using a suction device.
Problemproblem
Bei den vorstehend genannten Verfahren besteht für den Patienten ein Risiko:The above-mentioned procedures involve a risk for the patient:
Bei Verfahrena) kann es passieren, daß sich Teile des auseinandergepreßten Materials lösen und zu einer Embolie führen.During proceduresa) it can happen that parts of the pressed material come loose and lead to an embolism.
Hierzu kann es auchbei b) kommen, da der abgetrennte Belag nicht 100%ig abgesaugt werden kann.This can also happen with b), since the separated coating cannot be vacuumed 100%.
Y°?ieilhafte_Wirkungen_der_SrfindungY°?advantageous_effects_of_the_invention
Mit der Erfindung kann eine Embolie weitgehend ausgeschlossen werden.With the invention, embolism can be largely ruled out.
Der Schneckenkatheter ist ein zweiteiliger torpedoartiger Körper, dessen Spitze mit einem Drall versehen ist. Das Hinterteil des Katheters hat die Form einer Hülse, an deren vorderen Öffnung das Schneckengewinde drehbar gelagert ist. Durch Rechtsdrehung mit einer biegsamen Welle schraubt sich die Katheterspitze in die durch die Ablagerungen verengte Arterie.The screw catheter is a two-part torpedo-like body, the tip of which is provided with a twist. The rear part of the catheter is in the form of a sleeve, at the front opening of which the screw thread is rotatably mounted. By turning clockwise with a flexible shaft, the catheter tip screws itself into the artery narrowed by the deposits.
Die sich in den Drallgängen befindlichen Ablagerungen werden nach hinten befödert und an der Nahtstelle zwischen Schneckengewinde und Katheterhinterteil abgeschert.The deposits in the spiral channels are transported backwards and sheared off at the seam between the screw thread and the rear part of the catheter.
Das so abgescherte Material wird nun von den nachträgenden Ablagerungen in den im Katheterhinterteil befindlichen Hohlraum gedruckt und dort geborgen. Das abgetrennte Material kann nun problemlos und ohne Risiko für den Patienten aus dem Körper entfernt werden.The material sheared off in this way is now pushed by the subsequent deposits into the cavity in the rear part of the catheter and recovered there. The severed material can now be removed from the body without any problems and without any risk to the patient.
-2- -" " -'.-· ; Darstellung_des_Schneckenkatheters-2- -" "-'.-·; Illustration_of_the_cochlear_catheter
Es zeigen:Show it:
Figur 1 den Schneckenkatheter in der Seitenansicht Figure 1 the snail catheter in side view
Figur 2 Katheber im Schnitt; demontiert Figure 2 Catheter in section; dismantled
2.1. Spitze mit Drall2.1. Tip with twist
2.2. Katheterhinterteil2.2. Catheter rear part
2.3. Achse2.3. Axis
2.4. Bohrung für den Führungsdraht2.4. Hole for the guide wire
2.5. Lagerung2.5. Storage
2.6. Hohlraum2.6. Cavity
2.7. Seitenwände für die Hülle der biegsamen Welle2.7. Side walls for the flexible shaft casing
Figur 3 Blick auf die Katheterspitze von der Achsseite Figure 3 View of the catheter tip from the axis side
Figur 4 eine verkalkte Arterie Figure 4 a calcified artery
Figur 5 den Schneckenkatheter in Aktion Figure 5 the snail catheter in action
Figur 6 eine Arterie, weitgehend von verkalktem bzw. sklerosiertem Material befreit Figure 6 an artery, largely freed from calcified or sclerotic material
- Der Schneckenkatheter besteht aus zwei Teilen (2.1. und 2.2.). Er ist ein torpedoförmiger Körper aus Edelstahl, dessen Spitze mit einem Drall versehen ist.- The helical catheter consists of two parts (2.1. and 2.2.). It is a torpedo-shaped body made of stainless steel, the tip of which is provided with a twist.
- Die Katheterspitze (2.1.) und Achse (2.3.) mit Bohrung für den Führungsdraht (2.4.) bilden eine Einheit.- The catheter tip (2.1.) and axis (2.3.) with hole for the guide wire (2.4.) form a unit.
- Das Katheterhinterteil (2.2.) und Lagerungen (2.5.) mit Seitenwänden (2.7.) für die Hülle der biegsamen Welle bilden wiederum eine Einheit.- The catheter rear part (2.2.) and bearings (2.5.) with side walls (2.7.) for the flexible shaft casing again form a unit.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9116000U DE9116000U1 (en) | 1991-07-05 | 1991-12-23 | Cochlea catheter for the treatment of narrowed sclerotic arteries of the heart and body arteries |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9108314U DE9108314U1 (en) | 1991-07-05 | 1991-07-05 | Forceps catheter for the treatment of narrowed sclerotic arteries of the heart and body arteries |
| DE9116000U DE9116000U1 (en) | 1991-07-05 | 1991-12-23 | Cochlea catheter for the treatment of narrowed sclerotic arteries of the heart and body arteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9116000U1 true DE9116000U1 (en) | 1992-04-23 |
Family
ID=25958366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9116000U Expired - Lifetime DE9116000U1 (en) | 1991-07-05 | 1991-12-23 | Cochlea catheter for the treatment of narrowed sclerotic arteries of the heart and body arteries |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9116000U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0746245A1 (en) * | 1994-04-07 | 1996-12-11 | Derio Medical Instruments Ltd. | Device for removal of intraluminal occlusions |
| EP0814711A1 (en) * | 1995-03-22 | 1998-01-07 | Evi Corporation | Intra-artery obstruction clearing apparatus and methods |
-
1991
- 1991-12-23 DE DE9116000U patent/DE9116000U1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0746245A1 (en) * | 1994-04-07 | 1996-12-11 | Derio Medical Instruments Ltd. | Device for removal of intraluminal occlusions |
| EP0746245A4 (en) * | 1994-04-07 | 1997-11-19 | Derio Med Instr Ltd | Device for removal of intraluminal occlusions |
| EP0814711A1 (en) * | 1995-03-22 | 1998-01-07 | Evi Corporation | Intra-artery obstruction clearing apparatus and methods |
| EP0814711A4 (en) * | 1995-03-22 | 1999-03-17 | Evi Corp | Intra-artery obstruction clearing apparatus and methods |
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