DE202004005618U1 - Needle for puncturing medicinal, e.g. gelatin capsules giving reproducible puncturing of gelatin capsules without residual deformation and fragmentation - Google Patents
Needle for puncturing medicinal, e.g. gelatin capsules giving reproducible puncturing of gelatin capsules without residual deformation and fragmentation Download PDFInfo
- Publication number
- DE202004005618U1 DE202004005618U1 DE202004005618U DE202004005618U DE202004005618U1 DE 202004005618 U1 DE202004005618 U1 DE 202004005618U1 DE 202004005618 U DE202004005618 U DE 202004005618U DE 202004005618 U DE202004005618 U DE 202004005618U DE 202004005618 U1 DE202004005618 U1 DE 202004005618U1
- Authority
- DE
- Germany
- Prior art keywords
- puncturing
- gelatin capsules
- needle
- facet
- medicinal
- 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
- 239000007903 gelatin capsule Substances 0.000 title abstract 3
- 238000013467 fragmentation Methods 0.000 title description 2
- 238000006062 fragmentation reaction Methods 0.000 title description 2
- 239000002775 capsule Substances 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims 2
- 239000000843 powder Substances 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 235000017788 Cydonia oblonga Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000011343 solid material Substances 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
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
-
- 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
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
- A61M15/0033—Details of the piercing or cutting means
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Nadel, die in sogenannten Pulverinhalatoren eingesetzt wird, um eine zumeist aus Gelatine bestehende Kapsel zu perforieren, damit das zu inhalierende Pulver aus den Perforationsöffnungen durch die Atemluft des Patienten herausgesogen werden kann.The Invention relates to a needle used in so-called powder inhalers is used to a capsule consisting mostly of gelatin to perforate the powder to be inhaled from the perforation openings can be sucked out through the patient's breathing air.
Für diese Aufgabe benutzt man bisher Vollmaterialnadeln, die einen relativ langen Grundschliff haben und eine sogenannte Hinterschliff-Facette, um dem Grundschliff eine scharte Spitze zu geben.For this So far, you have been using solid material needles, which are relative have a long basic cut and a so-called relief cut facet, to give the basic grinding a sharp point.
Solche Nadeln werden z. B. verwendet im Produkt Handy-Haler von der Firma Boehringer Ingelheim.Such Needles are z. B. used in the product Handy-Haler from the company Boehringer Ingelheim.
Die Besonderheit bei der Konstruktion dieser Nadel ist, dass in diesem Falle nicht, wie herkömmlicherweise bei medizinischen Nadeln oder Kanülen das Ziel ist, eine möglichst geringe Verletzung der eingestochenen Struktur zu erreichen, sondern das Ziel gerade umgekehrt ist. Die Nadel soll in die Kapsel ein möglichst großes Loch reißen.The A special feature of the construction of this needle is that in this Don't fall, as is traditional With medical needles or cannulas, the goal is one if possible to achieve minor injury to the pierced structure, but the goal is just the other way round. The needle should go into the capsule preferably great Tear hole.
Der erste Ansatz hierzu wäre, eine stumpfe Nadel zu verwenden, dies verbietet sich aber deshalb, weil von einer stumpfen Nadel die Kapsel zusammengedrückt würde und das Loch erst entstehen würde, wenn die Kapsel schon deformiert ist, was wiederum den ordnungsgemäßen Austritt des Inhalationspulvers behindern könnte.The first approach would be to use a blunt needle, because the capsule would be pressed together by a blunt needle and the hole would only arise if the capsule is already deformed, which in turn ensures proper exit inhalation powder.
Der Erfindung liegt das Ziel zugrunde, eine Nadel herzustellen, die eine Kapsel aus Gelatine oder ähnlichem Material reproduzierbar ohne bleibende Verformung perforiert und dabei ohne nennenswerte Fragmentation ein möglichst großes Loch hinterläßt.The The object of the invention is to produce a needle which a capsule made of gelatin or the like Perforated and reproducible material without permanent deformation leaves as large a hole as possible without significant fragmentation.
Dieses Ziel wird erreicht durch einen sehr stumpfen Kurzschliff, der deutlich kürzer ist als die Schliffgeometrien der DIN 13097. Dieser Grundschliff wird kombiniert mit einer sehr scharfen vorderen Facette mit einem Facettenwinkel von ca. 120°.This The goal is achieved by a very blunt short cut, which is clear shorter is as the grinding geometries of DIN 13097. This basic grinding is combined with a very sharp front facet with a facet angle of approx. 120 °.
Dadurch wird mit relativ geringen Kräften eine Primärpunktion erreicht und durch das Wirken der scharten Schliffkanten eine maximale Aufweitung des Loches. Es konnte in Versuchsreihen gezeigt werden, dass die mit der beschriebenen Schliffgeometrie erreichten Löcher deutlich größer sind als die Löcher, die mit dem herkömmlichen Schliff der oben beschriebenen Art erreicht werden, aber auch größer als Löcher, die mit anderen bekannten Schliffen, z.B. dem Dreikantschliff erreicht werden.Thereby becomes a with relatively little force Primary puncture reached and a maximum through the action of the sharp cut edges Widening of the hole. It could be shown in test series that the holes achieved with the cut geometry described are clear are larger than the holes the one with the conventional one Grinding of the type described above can be achieved, but also larger than holes, those with other known cuts, e.g. reached the triangular cut become.
Eine besonders günstige Ausführungsform besteht darin, ein volles Rundmaterial von ca.1,5 mm Durchmesser etwa im Winkel α = 25° anzuschleifen, so dass sich eine Länge des Grundschliffes von ca. 3,7 mm ergibt. Auf die Spitze dieses Grundschliffes werden zwei Facettenschliffe gelegt, die im Winkel von ca. 120° zueinander stehen. Diese werden soweit auf die Spitze geschliffen, dass der facettenlose Teil des Grundschliffes sich auf ca. 1,6 mm verkürzt und die Gesamtlänge des Schliffes mit Facette nunmehr bei ca. 3,2 mm liegt. Der dabei entstehende Schliff ist deutlich kürzer als die in der DIN 13097 definierten Schliffe und er unterscheidet sich auch von in der Medizin üblichen Kurzschliffen, wie etwa dem Schliff nach Quincke oder Crawford. Dabei hat der Quinkeschliff eine vordere Facette, die aber wesentlich kürzer ist und der Crawfordschliff hat eine hintere Facette.A particularly cheap Embodiment consists in it, a full round material of about 1.5 mm in diameter about Angle α = Grind 25 °, see above that a length of the basic grinding of approx. 3.7 mm. On top of this Basic grinding is made of two facet cuts that are at an angle of approx. 120 ° to each other stand. These are ground to the point that the faceless part of the basic grinding is shortened to approx. 1.6 mm and the total length the facet cut is now approx. 3.2 mm. The one there The resulting cut is significantly shorter than that in DIN 13097 defined cuts and it also differs from those used in medicine Short cuts, such as the cut to Quincke or Crawford. The quince cut has a front facet, but it is essential shorter and the Crawford cut has a rear facet.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004005618U DE202004005618U1 (en) | 2003-11-13 | 2004-04-06 | Needle for puncturing medicinal, e.g. gelatin capsules giving reproducible puncturing of gelatin capsules without residual deformation and fragmentation |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20317496 | 2003-11-13 | ||
DE20317496.8 | 2003-11-13 | ||
DE202004005618U DE202004005618U1 (en) | 2003-11-13 | 2004-04-06 | Needle for puncturing medicinal, e.g. gelatin capsules giving reproducible puncturing of gelatin capsules without residual deformation and fragmentation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004005618U1 true DE202004005618U1 (en) | 2004-12-09 |
Family
ID=33521701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202004005618U Expired - Lifetime DE202004005618U1 (en) | 2003-11-13 | 2004-04-06 | Needle for puncturing medicinal, e.g. gelatin capsules giving reproducible puncturing of gelatin capsules without residual deformation and fragmentation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004005618U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007057362A1 (en) * | 2005-11-15 | 2007-05-24 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Needle for puncturing powder capsules for inhalation |
WO2021101773A1 (en) * | 2019-11-22 | 2021-05-27 | Becton, Dickinson And Company | Introducer needle and a catheter system comprising the needle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1225009A (en) * | 1959-02-11 | 1960-06-28 | Hypodermic or intravenous needle and its manufacturing process | |
DE8509932U1 (en) * | 1985-04-03 | 1985-06-13 | Panning, Bernhard, Dr., 3000 Hannover | Cannula tip |
DE3932014A1 (en) * | 1989-09-26 | 1990-04-05 | Rolf Dipl Ing Starec | Hollow cannula - with U=shaped angle at puncture point for one-fold ground edges |
DE10207770A1 (en) * | 2002-02-23 | 2003-09-04 | Muennerstaedter Glaswarenfabri | Cannula with elongated flatter tip, created by using additional step in grinding process |
DE10224101A1 (en) * | 2002-05-31 | 2003-12-11 | Muennerstaedter Glaswarenfabri | Cannula used in clinical applications comprises a cannula bevel produced as a standard beveled edge, centering surfaces on the bevel and outer diameter of the tube, and a tip in the bevel region curved inward as far as the tube axis |
-
2004
- 2004-04-06 DE DE202004005618U patent/DE202004005618U1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1225009A (en) * | 1959-02-11 | 1960-06-28 | Hypodermic or intravenous needle and its manufacturing process | |
DE8509932U1 (en) * | 1985-04-03 | 1985-06-13 | Panning, Bernhard, Dr., 3000 Hannover | Cannula tip |
DE3932014A1 (en) * | 1989-09-26 | 1990-04-05 | Rolf Dipl Ing Starec | Hollow cannula - with U=shaped angle at puncture point for one-fold ground edges |
DE10207770A1 (en) * | 2002-02-23 | 2003-09-04 | Muennerstaedter Glaswarenfabri | Cannula with elongated flatter tip, created by using additional step in grinding process |
DE10224101A1 (en) * | 2002-05-31 | 2003-12-11 | Muennerstaedter Glaswarenfabri | Cannula used in clinical applications comprises a cannula bevel produced as a standard beveled edge, centering surfaces on the bevel and outer diameter of the tube, and a tip in the bevel region curved inward as far as the tube axis |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007057362A1 (en) * | 2005-11-15 | 2007-05-24 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Needle for puncturing powder capsules for inhalation |
US9604017B2 (en) | 2005-11-15 | 2017-03-28 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Needle for piercing a powder capsule for inhalation |
WO2021101773A1 (en) * | 2019-11-22 | 2021-05-27 | Becton, Dickinson And Company | Introducer needle and a catheter system comprising the needle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20050113 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20070601 |
|
R081 | Change of applicant/patentee |
Owner name: BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG, DE Free format text: FORMER OWNER: SUEDDEUTSCHE FEINMECHANIK GMBH, 63607 WAECHTERSBACH, DE Effective date: 20071030 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20100506 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20120502 |
|
R071 | Expiry of right | ||
R071 | Expiry of right |