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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 PDF

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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
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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
Application number
DE202004005618U
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boehringer Ingelheim Pharma GmbH and Co KG
Original Assignee
Sueddeutsche Feinmechanik GmbH
Sueddeutsche Feinmechanik GmbH
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Publication date
Application filed by Sueddeutsche Feinmechanik GmbH, Sueddeutsche Feinmechanik GmbH filed Critical Sueddeutsche Feinmechanik GmbH
Priority to DE202004005618U priority Critical patent/DE202004005618U1/en
Publication of DE202004005618U1 publication Critical patent/DE202004005618U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M15/00Inhalators
    • A61M15/0028Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M15/00Inhalators
    • A61M15/0028Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/003Inhalators 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
    • A61M15/0033Details 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

Needle for puncturing medicinal, e.g. gelatin capsules comprising a round pin (1) with a beveled ground section (2) and two front facet sections (3), where the ground section angle alpha is 18-30 deg, the facet section angle beta is 25-45 deg, and the angle between the facet sections delta is 90-150 deg.

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)

Nadel zum Punktieren von Medikamentenkapseln, bestehend aus einem Rundstab (1) mit einem schrägen Grundschliff (2) und zwei vorderen Facettenschliffen (3), dadurch gekennzeichnet, dass der Grundschliffwinkelα 18 – 30° beträgt, der Facettenschliffwinkel β 25 – 45° beträgt und der Winkel zwischen den Facettenanschliffen δ 90 – 150° beträgt.Needle for puncturing drug capsules, consisting of a round rod ( 1 ) with an oblique basic grinding ( 2 ) and two front facet cuts ( 3 ), characterized in that the basic grinding angle α is 18-30 °, the facet grinding angle β is 25-45 ° and the angle between the facet grinding is δ 90-150 °. Nadel zum Punktieren von Medikamentenkapseln nach dem Oberbegriff des Anspruches 1, gekennzeichnet dadurch, dass der gesamte Anschliffbereich eine Länge a hat von 1,7 d – 2,9 d und dass die Länge c des Facettenschliffes in den Grenzen von 0,35 a – 0,65 a liegt.Needle for puncturing drug capsules the preamble of claim 1, characterized in that the entire grinding area one length a has from 1.7 d - 2.9 d and that the length c of the facet cut within the limits of 0.35 a - 0.65 a lies.
DE202004005618U 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 Expired - Lifetime DE202004005618U1 (en)

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

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Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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R163 Identified publications notified
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Effective date: 20050113

R150 Utility model maintained after payment of first maintenance fee after three years

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R081 Change of applicant/patentee

Owner name: BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG, DE

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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

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