DE20009351U1 - Aspiration port of a biopsy device - Google Patents
Aspiration port of a biopsy deviceInfo
- Publication number
- DE20009351U1 DE20009351U1 DE20009351U DE20009351U DE20009351U1 DE 20009351 U1 DE20009351 U1 DE 20009351U1 DE 20009351 U DE20009351 U DE 20009351U DE 20009351 U DE20009351 U DE 20009351U DE 20009351 U1 DE20009351 U1 DE 20009351U1
- Authority
- DE
- Germany
- Prior art keywords
- biopsy device
- opening
- aspiration
- inner cannula
- aspiration opening
- 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
- 238000001574 biopsy Methods 0.000 title claims description 11
- 241001631457 Cannula Species 0.000 claims description 4
- 239000003814 drug Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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
- A61B17/320783—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions through side-hole, e.g. sliding or rotating cutter inside catheter
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Pat - DE - 068 Aspirationsöffnung einer Biopsievorrichtung Seite 2Pat - DE - 068 Aspiration port of a biopsy device Page 2
Daum GmbHDaum GmbH
Die Erfindung betrifft die Verwendung einer Vorrichtung nach Anspruch 1.The invention relates to the use of a device according to claim 1.
Problemproblem
In der Medizin werden zur Entnahme von Gewebeproben aus dem Körper des Patienten Biopsienadeln verwendet. Bekannt sind unter anderem Biopsienadeln, z.B. sogenannte Sedan - Nadeln, die wie in Fig. 1 gezeigt am distalen Ende der Außen- und Innenkanüle über je eine längliche Aspirationsöffnung verfügen. Indem beide Öffnungen direkt übereinanderliegen ist es möglich, unter Zuhilfenahme einer Aspirationsspritze Gewebe in die Öffnung der Innenkanüle zu saugen. Durch Verdrehen der beiden Kanülen gegeneinander wird das in der Innenkanüle befindliche Gewebe abgetrennt. Nachteilig dabei ist, daß durch die stumpfen Schnittkanten der Öffnungen das Abtrennen des Gewebes mehr durch Quetschen als durch Schneiden geschieht. Dadurch wird die Probe kleiner als das Volumen der Aspirationsöffnung und das gewonnene Gewebe wird beschädigt.In medicine, biopsy needles are used to take tissue samples from the patient's body. Among other things, biopsy needles are well-known, e.g. so-called Sedan needles, which have an elongated aspiration opening at the distal end of the outer and inner cannula, as shown in Fig. 1. As both openings are directly on top of each other, it is possible to suck tissue into the opening of the inner cannula with the help of an aspiration syringe. By twisting the two cannulas against each other, the tissue in the inner cannula is severed. The disadvantage of this is that the blunt cutting edges of the openings mean that the tissue is severed more by squeezing than by cutting. This makes the sample smaller than the volume of the aspiration opening and the tissue obtained is damaged.
Die Aufgabe der Erfindung ist es, eine Aspirationsöffnung zu entwickeln mit der die beschriebenen Nachteile vermieden werden und die Gewebeproben in einer hohen Qualität liefert.The object of the invention is to develop an aspiration opening which avoids the described disadvantages and which delivers tissue samples of high quality.
LösungSolution
Die Lösung des dargestellten Problems wird in den folgenden Figuren erläutert:The solution to the problem presented is explained in the following figures:
Fig. 1 a - Gesamtansicht der BiopsievorrichtungFig. 1 a - Overall view of the biopsy device
b - Aspirationsöffnung im geöffneten Zustandb - Aspiration opening in the open state
Fig. 2 a - Gesamtansicht der Aspirationsöffnung der Innenkanüle
b - Seitenansicht der Aspirationsöffnung der Innenkanüle
c - Schnittdarstellung der Aspirationsöffnung der InnenkanüleFig. 2 a - Overall view of the aspiration opening of the inner cannula
b - Side view of the aspiration opening of the inner cannula
c - Cross-sectional view of the aspiration opening of the inner cannula
Die Erfindung löst das beschriebene Problem dadurch, daß die Aspirationsöffnungen der Innen- und Außenkanüle unterschiedlich angeschliffen werden. Fig. 1a zeigt die Gesamtansicht einer Biopsievorrichtung. In Fig. 1b ist die Aspirationsöffnung (1) dargestellt, die durch Öffnungen in der Außenkanüle (2) und Innenkanüle (3) gebildet wird. Fig.2a stellt die Ansicht der Öffnung (4) der inneren Kanüle (3) dar. Die Öffnung (4) der inneren Kanüle ist wie in Fig.2c so ausgeführt, daß eine Schneide (5) an der Außenkante entsteht. Analog dazu befindet sich bei der äußeren Kanüle ein entsprechender Anschliff an der Innenkante der Öffnung. Bei der inneren Kanüle kommt wie in Fig. 2b ersichtlich hinzu, daß der Ausschnitt der Öffnung (4) zum distalen Ende der Kanüle hin etwas abgeschrägt ausgeführt ist (6), so daß beim Verdrehen der Schneiden ein gleitender Schnittpunkt, ähnlich wie bei einer sichThe invention solves the problem described by grinding the aspiration openings of the inner and outer cannulas differently. Fig. 1a shows the overall view of a biopsy device. Fig. 1b shows the aspiration opening (1), which is formed by openings in the outer cannula (2) and inner cannula (3). Fig. 2a shows the view of the opening (4) of the inner cannula (3). The opening (4) of the inner cannula is designed as in Fig. 2c so that a cutting edge (5) is created on the outer edge. Analogously, the outer cannula has a corresponding grinding on the inner edge of the opening. In the inner cannula, as can be seen in Fig. 2b, the cutout of the opening (4) is designed to be slightly beveled towards the distal end of the cannula (6), so that when the cutting edges are rotated, a sliding intersection point is created, similar to a
Pat - DE - 068 Aspirationsöffnung einer Biopsievorrichtung Seite 3Pat - DE - 068 Aspiration port of a biopsy device Page 3
Daum GmbHDaum GmbH
schließenden Schere, entsteht. Dieser gleitende Schnittpunkt bleibt auch bei einer eventuellen Verdrehung der Innenkanüle durch Torsion erhalten, da die schräge Kante die Torsionsbewegung mitmacht.closing scissors. This sliding intersection point is maintained even if the inner cannula is twisted by torsion, since the beveled edge follows the torsional movement.
Der Vorteil der Erfindung liegt darin, daß durch die genannten Maßnahmen beim Verdrehen der Kanülen gegeneinander die Gewebeprobe sauber abgeschnitten und nicht mehr gequetscht wird. Die Qualität der gewonnenen Probe wird somit nicht mehr durch unsaubere Schnittkanten beeinträchtigt und das Volumen der Probe ist größer. Weiterhin ist aufgrund der angeschliffenen Kanten eine kleinere Schnittkraft notwendig als bei der Verwendung einer herkömmlichen Aspirationsöffnung.The advantage of the invention is that the measures mentioned mean that when the cannulas are rotated against each other, the tissue sample is cut cleanly and no longer crushed. The quality of the sample obtained is therefore no longer impaired by unclean cutting edges and the volume of the sample is larger. Furthermore, due to the ground edges, less cutting force is required than when using a conventional aspiration opening.
Pat - DE - 068 Aspirationsöffnung einer Biopsievorrichtung SeitePat - DE - 068 Aspiration port of a biopsy device Page
Daum GmbHDaum GmbH
1 Aspirationsöffnung1 aspiration opening
2 Außenkanüle2 outer cannula
3 Innenkanüle3 Inner cannula
4 Öffnung der Innenkanüle4 Opening the inner cannula
5 Schneide5 Cutting edge
6 Abschrägung der Öffnung6 Bevel of the opening
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20009351U DE20009351U1 (en) | 2000-05-24 | 2000-05-24 | Aspiration port of a biopsy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20009351U DE20009351U1 (en) | 2000-05-24 | 2000-05-24 | Aspiration port of a biopsy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20009351U1 true DE20009351U1 (en) | 2000-09-21 |
Family
ID=7941979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20009351U Expired - Lifetime DE20009351U1 (en) | 2000-05-24 | 2000-05-24 | Aspiration port of a biopsy device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20009351U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20211934U1 (en) | 2002-08-02 | 2002-09-19 | Heske, Norbert F., 82288 Kottgeisering | Biopsy device for taking tissue samples under vacuum |
| EP3714798A3 (en) * | 2006-10-24 | 2020-12-16 | C. R. Bard, Inc. | Large sample low aspect ratio biopsy needle |
-
2000
- 2000-05-24 DE DE20009351U patent/DE20009351U1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20211934U1 (en) | 2002-08-02 | 2002-09-19 | Heske, Norbert F., 82288 Kottgeisering | Biopsy device for taking tissue samples under vacuum |
| EP3714798A3 (en) * | 2006-10-24 | 2020-12-16 | C. R. Bard, Inc. | Large sample low aspect ratio biopsy needle |
| US11583261B2 (en) | 2006-10-24 | 2023-02-21 | C. R. Bard, Inc. | Large sample low aspect ratio biopsy needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20001026 |
|
| R081 | Change of applicant/patentee |
Owner name: MRI DEVICES DAUM GMBH, DE Free format text: FORMER OWNER: DAUM GMBH, 19061 SCHWERIN, DE Effective date: 20020802 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20030626 |
|
| R409 | Internal rectification of the legal status completed | ||
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20070209 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20081202 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20090204 |
|
| R071 | Expiry of right |