DE10034297A1 - Tissue-removing endoscope instrument has suction channel in needle shaft, leading to inside of tissue-removal opening - Google Patents
Tissue-removing endoscope instrument has suction channel in needle shaft, leading to inside of tissue-removal openingInfo
- Publication number
- DE10034297A1 DE10034297A1 DE10034297A DE10034297A DE10034297A1 DE 10034297 A1 DE10034297 A1 DE 10034297A1 DE 10034297 A DE10034297 A DE 10034297A DE 10034297 A DE10034297 A DE 10034297A DE 10034297 A1 DE10034297 A1 DE 10034297A1
- Authority
- DE
- Germany
- Prior art keywords
- tissue
- needle shaft
- outer sleeve
- needle
- free end
- 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- Withdrawn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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; 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
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; 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—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
- A61B2010/045—Needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0807—Indication means
- A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
Abstract
Description
Die Erfindung betrifft ein Gewebeentnahme-Endoskopieinstrument nach dem Oberbegriff des Patentanspruchs 1, das beispielsweise für eine Leberbiopsie ver wendbar ist und in einen Behandlungsinstrumenten-Einführungskanal eines Endo skops eingeführt und aus diesem entnommen werden kann.The invention relates to a tissue extraction endoscopy instrument according to the Preamble of claim 1, which ver for example for a liver biopsy is reversible and into a treatment instrument insertion channel of an Endo skops can be inserted and removed from it.
Fig. 8 zeigt ein freies Endes einer sog. "Guillotine"-Gewebeentnahmenadel, wel che als Gewebeentnahme-Endoskopieinstrument verwendbar ist. Am freien Ende eines stabförmigen Nadelschaftes 10 ist ein scharfes Nadelende 11 vorgesehen. Weiterhin ist im Bereich des Nadelendes 11 von der Seite gesehen eine Gewebe aufnahmeausnehmung 12 zur Aufnahme einer ausgeschnittenen Gewebeprobe vorgesehen. Fig. 8 shows a free end of a so-called "guillotine" tissue removal needle, which che usable as a tissue extraction endoscopy instrument. A sharp needle end 11 is provided at the free end of a rod-shaped needle shaft 10 . Furthermore, a tissue receiving recess 12 is provided in the region of the needle end 11 , viewed from the side, for receiving a cut-out tissue sample.
Auf den Nabelschaft 10 ist eine Außenhülse 20 axial bewegbar aufgepaßt, wäh rend auf der inneren Umfangsseite des freien Endes dieser Außenhülse 20 ein ringförmiges Blatt 21 zum Ausschneiden von Gewebe vorgesehen ist, das in die Gewebeaufnahmeausnehmung 12 eintritt. On the umbilical shaft 10 , an outer sleeve 20 is axially movably fitted, while an annular blade 21 for cutting out tissue is provided on the inner peripheral side of the free end of this outer sleeve 20 , which enters the tissue receiving recess 12 .
Die Fig. 9 und 10 zeigen Zustände, in denen unter Verwendung des Gewebe entnahme-Endoskopieinstrumentes Biopsiegewebe entnommen wird. Gemäß Fig. 9 ist die Außenhülse 20 nach dem Eindringen des Gewebeentnahme-Endoskopie elementes in ein Gewebe 100 geringfügig zurückgezogen, so daß ein Zielbereich des Gewebes 100 in die Gewebeaufnahmeausnehmung 12 eintritt. Gemäß Fig. 10 wird die Außenhülse 20 zeitweise zum Ausschneiden von Probengewebe 101 aus dem Gewebe 100 geführt, wobei die Gewebeprobe in die Gewebeaufnahmeaus nehmung 12 eintritt. FIGS. 9 and 10 show states in which removal endoscopy instrument using the tissue biopsy tissue is removed. According to FIG. 9, the outer sleeve is retracted slightly element 20 after penetration of the tissue removal endoscopy in a fabric 100 so that a target region of the tissue enters the Gewebeaufnahmeausnehmung 12 100. Referring to FIG. 10, the outer sleeve is temporarily out 20 for cutting tissue samples 101 from tissue 100, wherein the tissue sample in the Gewebeaufnahmeaus recess 12 occurs.
Wird das Gewebeentnahme-Endoskopieinstrument in der vorstehend beschriebe nen Weise angewendet, so kann eine Gewebeprobe, welche größer als die Ge webeaufnahmeausnehmung 12 ist, nicht entnommen werden. Darüber hinaus ist bei der praktischen Anwendung gemäß Fig. 11 ein Raum zwischen der Gewebe aufnahmeausnehmung 12 und der Gewebeprobe 101 vorhanden. Wird die Gewe beprobe 101 bei vorgeschobener Außenhülse 20 ausgeschnitten, so wird sie durch die Außenhülse 20 gedrückt und angehoben. Aus diesen Gründen ist die entnommene Gewebeprobe 101 im Vergleich zur Größe der Gewebeaufnahme ausnehmung 12 geringfügig kleiner.If the tissue extraction endoscopy instrument is used in the manner described above, a tissue sample which is larger than the tissue receiving recess 12 cannot be removed. In addition, in the practical application according to FIG. 11, there is a space between the tissue receiving recess 12 and the tissue sample 101 . If the tissue sample 101 is cut out with the outer sleeve 20 advanced, it is pressed through the outer sleeve 20 and raised. For these reasons, the tissue sample 101 taken is slightly smaller than the size of the tissue receiving recess 12 .
Der Erfindung liegt die Aufgabe zugrunde, ein Gewebeentnahme-Endoskopie instrument anzugeben, mit dem in einfacher Weise eine ausreichende Menge ei ner Gewebeprobe entnommen werden kann, ohne daß die Instrumentengröße zunimmt.The invention has for its object a tissue extraction endoscopy to specify instrument with which a sufficient amount of egg ner tissue sample can be taken without the instrument size increases.
Diese Aufgabe wird bei einem Gewebeentnahme-Endoskopieinstrument der ein gangs genannten Art durch die Merkmale des kennzeichnenden Teils des Patent anspruchs 1 gelöst.This task is the one with a tissue extraction endoscopy instrument gangs mentioned by the features of the characterizing part of the patent claim 1 solved.
Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.Developments of the invention are the subject of dependent claims.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels gemäß den Figuren der Zeichnungen näher erläutert. Es zeigt:The invention is described below using an exemplary embodiment according to the Figures of the drawings explained in more detail. It shows:
Fig. 1 eine geschnittene Seitenansicht des Gesamtaufbaus eines erfindungsge mäßen Ausführungsbeispiels eines Gewebeentnahme-Endoskopieinstru mentes bei geschlossener Gewebeaufnahmeausnehmung; Figure 1 is a sectional side view of the overall structure of an embodiment according to the invention of a tissue removal endoscopy instrument with the tissue receiving recess closed;
Fig. 2 eine geschnittene Seitenansicht des Gesamtaufbaus des Gewebeentnah me-Endoskopieinstrumentes bei geöffneter Gewebeaufnahmeausneh mung; Fig. 2 is a sectional side view of the overall structure of the tissue extraction me-endoscopic instrument with the tissue intake opening opened;
Fig. 3 eine geschnittene Seitenansicht eines freien Endes des Gewebeentnah me-Endoskopieinstrumentes; Fig. 3 is a sectional side view of a free end of the tissue extraction me endoscopic instrument;
Fig. 4 eine geschnittene Seitenansicht des freien Endes des Gewebeentnahme- Endoskopieinstrumentes; Fig. 4 is a sectional side view of the free end of the Gewebeentnahme- endoscopy instrument;
Fig. 5 eine geschnittene Seitenansicht des freien Endes des Gewebeentnahme- Endoskopieinstrumentes; Fig. 5 is a sectional side view of the free end of the Gewebeentnahme- endoscopy instrument;
Fig. 6 eine geschrittene Seitenansicht des freien Endes des Gewebeentnahme- Endoskopieinstrumentes; Fig. 6 is a stepped side view of the free end of the tissue extraction endoscopy instrument;
Fig. 7 eine geschrittene Seitenansicht einer unter Verwendung des Gewebeent nahme-Endoskopieinstrumentes entnommenen Gewebeprobe; Fig. 7 is a stepped side view of a tissue sample taken using the tissue extraction endoscopy instrument;
Fig. 8 eine geschnittene Seitenansicht des freien Endes eines bekannten Gewe beentnahme-Endoskopieinstrumentes; Fig. 8 is a sectional side view of the free end of a known tissue extraction endoscopy instrument;
Fig. 9 eine geschnittene Seitenansicht des freien Endes des bekannten Gewe beentnahme-Endoskopieinstrumentes; Fig. 9 is a sectional side view of the free end of the known tissue extraction endoscopy instrument;
Fig. 10 eine geschnittene Seitenansicht des freien Endes des bekannten Gewe beentnahme-Endoskopieinstrumentes; Fig. 10 is a sectional side view of the free end of the known tissue extraction endoscopy instrument;
Fig. 11 eine vergrößerte geschnittene Seitenansicht des Zustandes einer entnom menen Gewebeprobe bei Verwendung des bekannten Gewebeentnahme- Endoskopieinstrumentes; und Fig. 11 is an enlarged sectional side view of the state of a entnom menen tissue sample when using the known Gewebeentnahme- endoscopic instrument; and
Fig. 12 eine vergrößerte geschnittene Seitenansicht des Zustandes einer entnom menen Gewebeprobe bei Verwendung des bekannten Gewebeentnahme- Endoskopieinstrumentes. Fig. 12 is an enlarged sectional side view of the state of a removed tissue sample using the known tissue extraction endoscopy instrument.
Nachfolgend wird ein Ausführungsbeispiel vorliegender Erfindung anhand der bei gefügten Zeichnungen erläutert.An exemplary embodiment of the present invention is described below with reference to attached drawings explained.
Die Fig. 1 und 2 zeigen den Gesamtaufbau eines Gewebeentnahme-Endos kopieinstrumentes. Fig. 1 zeigt einen Zustand, in dem ein Nadelschaft 10 mit ei nem Ansauginstrument 50 verbunden ist, wobei eine Außenhülse 20 in eine vor gegebene vorderste Stellung nach vorn bewegt ist, während Fig. 2 einen Zustand zeigt, in dem die Außenhülse 20 zur Bedienungsseite hin zurückgezogen ist. In Fig. 2 ist das Ansauginstrument 50 nicht dargestellt. Figs. 1 and 2 show the overall configuration of a tissue sampling-Endos copy instrument. Fig. 1 shows a state in which a needle shaft 10 is connected to egg nem suction instrument 50 , wherein an outer sleeve 20 is moved forward in a given frontmost position, while Fig. 2 shows a state in which the outer sleeve 20 to the operating side is withdrawn. The suction instrument 50 is not shown in FIG. 2.
Am freien Ende des Nadelschaftes 10 ist ein scharfes Nadelende 11 mit nach von vorn gerichteten scharfer Spitze ohne Loch vorgesehen. Unmittelbar hinter dem Nadelende 11 ist von der Seite des Nadelschaftes 10 gesehen eine Gewebeauf nahmeausnehmung 12 vorgesehen.At the free end of the needle shaft 10 there is a sharp needle end 11 with a forward-pointing sharp tip without a hole. Immediately behind the needle end 11 , a tissue receiving recess 12 is seen from the side of the needle shaft 10 .
Ein mit der Gewebeaufnahmeausnehmung 12 in Verbindung stehender Ansaug kanal 13 verläuft vom hinteren Ende der Gewebeaufnahmeausnehmung 12 über die gesamte Länge des Nadelschaftes 10. Das bedeutet, daß der hinter der Ge webeaufnahmeausnehmung befindliche Teil des Nadelschaftes 10 die Form einer Röhre besitzt. A suction channel 13 connected to the tissue receiving recess 12 extends from the rear end of the tissue receiving recess 12 over the entire length of the needle shaft 10 . This means that the webeaufnahmeausnehmung behind the Ge part of the needle shaft 10 situated has the shape of a tube.
Die Außenhülse 20 ist axial beweglich auf den Nadelschaft 10 aufgepaßt und be deckt nahezu dessen gesamte Länge. Am freien Ende der Außenhülse 20 ist auf dessen innerer Umfangsseite ein nach vorn abgeschrägtes ringförmiges Blatt 21 vorgesehen.The outer sleeve 20 is axially movably fitted onto the needle shaft 10 and covers almost the entire length thereof. At the free end of the outer sleeve 20 , a forwardly bevelled annular blade 21 is provided on its inner circumferential side.
Die Außenhülse 20 ist geringfügig kürzer als der Nadelschaft 10 (beispielsweise um etwa 2-10 cm). Am Bedienungsende der Außenhülse 20 ist eine manuell betätigbare Feststellschraube 23 vorgesehen, so daß deren Ende mit der Außen umfangsfläche des Nadelschaftes 10 in Kontakt gebracht werden kann.The outer sleeve 20 is slightly shorter than the needle shaft 10 (for example by about 2-10 cm). At the operating end of the outer sleeve 20 , a manually operable locking screw 23 is provided so that the end thereof can be brought into contact with the outer circumferential surface of the needle shaft 10 .
Durch Anziehen der Feststellschraube 23 kann daher die Außenhülse 20 relativ zum Nadelschaft 10 fixiert werden, während sie bei Lösen dieser Feststellschrau be 23 relativ zum Nadelschaft 20 bewegt werden kann. An der Bedienungsseite des Nadelschaftes 10 und der Außenhülse 20 sind Fingerstützen 14 bzw. 22 vor gesehen, wodurch eine Axialbewegung erleichtert wird.By tightening the locking screw 23 , the outer sleeve 20 can therefore be fixed relative to the needle shaft 10 , while it can be moved relative to the needle shaft 20 when loosening this locking screw 23 . On the operating side of the needle shaft 10 and the outer sleeve 20 finger supports 14 and 22 are seen before, whereby an axial movement is facilitated.
Auf der Umfangsfläche am Bedienungsende des Nadelschaftes 10 sind Skalen (eine Markierung) 15 vorgesehen, so daß eine Bedienungsperson die Stellung der Bedienungsseite der Außenhülse 20 in Bezug auf die Skalen 15 beobachten kann, wodurch es möglich wird, die Stellung des freien Endes der Außenhülse 20 in Be zug auf den Nadelschaft 10 zu erkennen (d. h. zu erkennen, daß die Außenhülse 20 in einer vorgegebenen Stellung gemäß Fig. 1 steht und wieweit sie sich aus der vorgegebenen Stellung bewegt hat).Scales (a mark) 15 are provided on the peripheral surface at the operating end of the needle shaft 10 so that an operator can observe the position of the operating side of the outer sleeve 20 with respect to the scales 15 , thereby making it possible to determine the position of the free end of the outer sleeve 20 in relation to the needle shaft 10 to be recognized (ie to recognize that the outer sleeve 20 is in a predetermined position according to FIG. 1 and how far it has moved from the predetermined position).
Ein Skalenteil, welcher anzeigt, daß die Außenhülse 20 in der vorgegebenen Stel lung steht, kann länger als andere Skalenteile sein (kann beispielsweise auf den gesamten Umfang vorgesehen sein) oder kann sich in der Farbe von diesen ande ren Skalenteilen unterscheiden. Darüber hinaus kann zusätzlich eine Markierung 15A vorgesehen sein, welche anzeigt, daß das Nadelende 11 von der Außenhülse 20 aufgenommen wird. A scale part, which indicates that the outer sleeve 20 is in the predetermined position, may be longer than other scale parts (may be provided, for example, over the entire circumference) or may differ in color from these other scale parts. In addition, a marking 15 A can also be provided, which indicates that the needle end 11 is received by the outer sleeve 20 .
Am Bedienungsende des Nadelschaftes 10 ist eine einstückig mit der Fingerstütze 14 ausgebildete Verbindung 16 vorgesehen, welche lösbar an dem Ansauginstru ment 50 befestigt werden kann. Diese Verbindung 16 steht mit dem Ansaugkanal 13 in Verbindung, so daß das Ansauginstrument 50, wie beispielsweise eine Sprit ze, mit dieser verbunden werden kann, um Gewebe in der Gewebeaufnahmeaus nehmung 12 am freien Ende des Nadelschaftes 10 anzusaugen.At the operating end of the needle shaft 10 , a connection 16 , which is formed in one piece with the finger rest 14 , is provided, which can be detachably fastened to the suction device 50 . This connection 16 is connected to the suction channel 13 so that the suction instrument 50 , such as a fuel ze, can be connected to this, to take tissue in the tissue receiving recess 12 at the free end of the needle shaft 10 .
Das Gewebeentnahme-Endoskopieinstrument gemäß diesem Ausführungsbei spiel wird in einen Behandlungsinstrumenten-Einführungskanal eines Endoskops, beispielsweise eines Ultraschallendoskops, eingeführt und aus diesem entnom men. Dabei kann das Instrument in einem Zustand in den Behandlungsinstrumen ten-Einführungskanal eingeführt werden, in dem es durch ein Führungsrohr, bei spielsweise ein Tetrafluorethylen-Kunststoffrohr, geführt wird, um den Behand lungsinstrumenten-Einführungskanal während der Einführung und der Entnahme gegen eine Beschädigung durch das Nadelende 11 zu schützen.The tissue extraction endoscopy instrument according to this exemplary embodiment is inserted into a treatment instrument insertion channel of an endoscope, for example an ultrasound endoscope, and removed therefrom. The instrument can be inserted into the treatment instrument insertion channel in a state in which it is guided through a guide tube, for example a tetrafluoroethylene plastic tube, around the treatment instrument insertion channel during insertion and removal against damage by the To protect needle end 11 .
Die Fig. 3 bis 6 zeigen Fälle, in denen Biopsiegewebe beispielsweise aus der Leber oder der Bauchspeicheldrüse unter Verwendung des Gewebeentnahme- Endoskopieinstrumentes gemäß dem vorstehend beschriebenen Ausführungsbei spiel entnommen wird. Gemäß Fig. 3 steht das freie Ende der Außenhülse 20 na he am freien Ende des Nadelschaftes 10, so daß die Gewebeentnahmeausneh mung 12 durch die Außenhülse 20 verschlossen ist. In diesem Zustand ist die Feststellschraube 23 zur Fixierung der Außenhülse 20 relativ zum Nadelschaft 10 angezogen, wonach das Nadelende 11 in das Gewebe 100 eingeführt wird. FIGS. 3 to 6 show cases in which the biopsy tissue Ausführungsbei described above is taken game, for example, the liver or the pancreas using the endoscopic instrument according to Gewebeentnahme-. Referring to FIG. 3, the free end of the outer sleeve 20 na he at the free end of the needle shaft 10 so that the Gewebeentnahmeausneh mung is closed by the outer sleeve 20 12. In this state, the locking screw 23 is tightened to fix the outer sleeve 20 relative to the needle shaft 10 , after which the needle end 11 is inserted into the tissue 100 .
Ist die Gewebeentnahmeausnehmung 12 in einer vorgegebenen Tiefe eingeführt, so wird die Feststellschraube 23 gelöst und die Außenhülse 20 geringfügig zur Bedienungsseite hin zurückgezogen, um die Gewebeaufnahmeausnehmung 12 freizulegen, wie dies in Fig. 4 dargestellt ist. Das Gewebe 10 tritt daher in die Ge webeaufnahmeausnehmung 12 ein. If the tissue removal recess 12 is inserted at a predetermined depth, the locking screw 23 is loosened and the outer sleeve 20 is withdrawn slightly towards the operating side in order to expose the tissue reception recess 12 , as is shown in FIG. 4. The tissue 10 therefore enters the Ge tissue receiving recess 12 .
Danach wird das Ansauginstrument 15 betätigt, um das angesaugte Gewebe von der Gewebeaufnahmeausnehmung 12 durch den Ansaugkanal 13 zu führen. Ein Teil des Gewebes 100, das zur Gewebeprobe 101 wird, wird daher voll in die Ge webeaufnahmeausnehmung sowie in das Innere des Ansaugkanals 13 über des sen Einlaß hinaus gesaugt, wie dies in Fig. 5 dargestellt ist.The suction instrument 15 is then actuated to guide the suctioned tissue from the tissue receiving recess 12 through the suction channel 13 . A portion of the tissue 100 , which becomes the tissue sample 101 , is therefore fully sucked into the Ge tissue receiving recess and into the interior of the intake duct 13 beyond the sen inlet, as shown in Fig. 5.
Sodann wird die Außenhülse 20 in die ursprüngliche Stellung nach vorn bewegt, um die Gewebeprobe 101 mit dem Blatt 21 vom Gewebe 100 abzuschneiden und in die Gewebeaufnahmeausnehmung 12 einzuführen. Wie Fig. 7 zeigt, kann in einfacher Weise eine Gewebeprobe 101 entnommen werden, deren Volumen größer als das der Gewebeaufnahmeausnehmung 12 ist.The outer sleeve 20 is then moved forward into the original position in order to cut the tissue sample 101 with the sheet 21 from the tissue 100 and to insert it into the tissue receiving recess 12 . As shown in FIG. 7, a tissue sample 101 can be removed in a simple manner, the volume of which is larger than that of the tissue receiving recess 12 .
Durch den erfindungsgemäß vorgesehenen Ansaugkanal, welcher durch den Na delschaft verläuft und die Innenseite der Gewebeaufnahmeausnehmung erreicht, wird es möglich, eine Gewebeprobe zu entnehmen, welche vollständig in die Ge webeaufnahmeausnehmung und das Innere des Ansaugkanals über dessen Ein laß hinaus gesaugt werden kann. Es kann daher eine ausreichende Gewebemen ge ohne Vergrößerung des Instrumentes entnommen werden. Da der Nadelschaft Rohrform besitzt, wird darüber hinaus seine Flexibilität erhöht, wodurch seine Einführung in den Behandlungseinführungskanal eines Endoskops erleichtert wird.Through the intake duct provided according to the invention, which through the Na shaft runs and reaches the inside of the tissue receiving recess, it becomes possible to take a tissue sample that is completely in the Ge weave receiving recess and the interior of the intake duct via its on let it be sucked out. There can therefore be a sufficient amount of tissue can be removed without enlarging the instrument. Because of the needle shaft Pipe shape also increases its flexibility, which increases its Introduction into the treatment introduction channel of an endoscope is facilitated.
Claims (3)
einem Nadelschaft mit einem spitzen Nadelende und einer Gewebeent nahmeausnehmung im Bereich des Nadelendes; und
einer Außenhülse, die auf dem Nadelschaft axial bewegbar ist und an ihrem freien Ende ein Blatt zum Abschneiden von in die Gewebeentnahmeaus nehmung gelangendem Gewebe besitzt,
gekennzeichnet durch
einen durch die Nadelschaft verlaufenden und in das Innere der Gewebe entnahmeausnehmung führenden Ansaugkanal.1. Tissue extraction endoscopy instrument with
a needle shaft with a pointed needle end and a tissue removal recess in the area of the needle end; and
an outer sleeve which is axially movable on the needle shaft and has at its free end a sheet for cutting off tissue coming into the tissue removal recess,
marked by
a suction channel running through the needle shaft and leading into the interior of the tissue removal recess.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28497499A JP2001104313A (en) | 1999-10-06 | 1999-10-06 | Organization sampling device for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10034297A1 true DE10034297A1 (en) | 2001-04-12 |
Family
ID=17685501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10034297A Withdrawn DE10034297A1 (en) | 1999-10-06 | 2000-07-14 | Tissue-removing endoscope instrument has suction channel in needle shaft, leading to inside of tissue-removal opening |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2001104313A (en) |
| DE (1) | DE10034297A1 (en) |
| DK (1) | DK200000790A (en) |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266624A1 (en) * | 2001-06-12 | 2002-12-18 | H.S. Hospital Service S.p.a. | Biopsy needle |
| WO2003077767A1 (en) | 2002-03-19 | 2003-09-25 | Bard Dublin Itc Limited | Vacuum biopsy device |
| DE10212155A1 (en) * | 2002-03-19 | 2003-10-09 | Heske Norbert F | Biopsy device consists of a handpiece, a needle, a vacuum generating unit located in the handpiece housing, a ventilation opening, and a connecting element |
| DE10212154A1 (en) * | 2002-03-19 | 2003-10-09 | Norbert F Heske | Handheld biopsy unit for the removal of tissue, comprises at least one tensioning and launching unit, and a needle unit with an outer hollow needle and a hollow biopsy needle |
| WO2004045417A1 (en) * | 2002-11-20 | 2004-06-03 | Boston Scientific Limited | Medical biopsy instrument |
| WO2004107988A3 (en) * | 2003-05-30 | 2005-03-24 | Scimed Life Systems Inc | Transbronchial needle aspiration device |
| WO2006083770A2 (en) | 2005-01-31 | 2006-08-10 | C. R. Bard, Inc. | Quick cycle biopsy system |
| DE10050742B4 (en) * | 1999-10-13 | 2006-12-14 | Pentax Corp. | Endoscopic instrument for tissue removal |
| US7645239B2 (en) | 2003-03-29 | 2010-01-12 | C. R. Bard, Inc. | Coaxial cannula provided with a sealing element |
| US7828747B2 (en) | 2003-03-29 | 2010-11-09 | C. R. Bard, Inc. | Pressure generating unit |
| US8002713B2 (en) | 2002-03-19 | 2011-08-23 | C. R. Bard, Inc. | Biopsy device and insertable biopsy needle module |
| US8052615B2 (en) | 2004-07-09 | 2011-11-08 | Bard Peripheral Vascular, Inc. | Length detection system for biopsy device |
| US8088080B2 (en) | 2002-11-20 | 2012-01-03 | Boston Scientific Scimed, Inc. | Medical instrument |
| US8137288B2 (en) | 2002-11-20 | 2012-03-20 | Boston Scientific Scimed, Inc. | Medical instrument |
| US8251917B2 (en) | 2006-08-21 | 2012-08-28 | C. R. Bard, Inc. | Self-contained handheld biopsy needle |
| US8262585B2 (en) | 2005-08-10 | 2012-09-11 | C. R. Bard, Inc. | Single-insertion, multiple sampling biopsy device with linear drive |
| US8262586B2 (en) | 2006-10-24 | 2012-09-11 | C. R. Bard, Inc. | Large sample low aspect ratio biopsy needle |
| US8267868B2 (en) | 2005-08-10 | 2012-09-18 | C. R. Bard, Inc. | Single-insertion, multiple sample biopsy device with integrated markers |
| US8282574B2 (en) | 2005-08-10 | 2012-10-09 | C. R. Bard, Inc. | Single-insertion, multiple sampling biopsy device usable with various transport systems and integrated markers |
| US8430824B2 (en) | 2009-10-29 | 2013-04-30 | Bard Peripheral Vascular, Inc. | Biopsy driver assembly having a control circuit for conserving battery power |
| US8454532B2 (en) | 2007-12-27 | 2013-06-04 | Devicor Medical Products, Inc. | Clutch and valving system for tetherless biopsy device |
| US8485989B2 (en) | 2009-09-01 | 2013-07-16 | Bard Peripheral Vascular, Inc. | Biopsy apparatus having a tissue sample retrieval mechanism |
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Families Citing this family (3)
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| US8187294B2 (en) * | 2005-09-26 | 2012-05-29 | Suros Surgical Systems, Inc. | Rotating surgical cutter |
| CN107595327A (en) * | 2017-10-20 | 2018-01-19 | 中国人民解放军第四军医大学 | Parathyroid gland accurately identifies method and its detection means in art |
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-
1999
- 1999-10-06 JP JP28497499A patent/JP2001104313A/en active Pending
-
2000
- 2000-05-16 DK DK200000790A patent/DK200000790A/en not_active Application Discontinuation
- 2000-07-14 DE DE10034297A patent/DE10034297A1/en not_active Withdrawn
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| JP2001104313A (en) | 2001-04-17 |
| DK200000790A (en) | 2001-04-07 |
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