DE10042025A1 - Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion - Google Patents

Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion

Info

Publication number
DE10042025A1
DE10042025A1 DE10042025A DE10042025A DE10042025A1 DE 10042025 A1 DE10042025 A1 DE 10042025A1 DE 10042025 A DE10042025 A DE 10042025A DE 10042025 A DE10042025 A DE 10042025A DE 10042025 A1 DE10042025 A1 DE 10042025A1
Authority
DE
Germany
Prior art keywords
trocar sleeve
nuclear spin
radiology
instrument
invisible
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.)
Ceased
Application number
DE10042025A
Other languages
German (de)
Inventor
Wolfgang Daum
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.)
MRI DEVICES DAUM GMBH, 19061 SCHWERIN, DE
Original Assignee
Daum I Ins GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daum I Ins GmbH filed Critical Daum I Ins GmbH
Priority to DE10042025A priority Critical patent/DE10042025A1/en
Publication of DE10042025A1 publication Critical patent/DE10042025A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
    • A61B1/3135—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for examination of the epidural or the spinal space
    • 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
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • 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
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00261—Discectomy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00902—Material properties transparent or translucent
    • A61B2017/00911—Material properties transparent or translucent for fields applied by a magnetic resonance imaging system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/349—Trocar with thread on outside
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Abstract

The instrument to give access with minimal invasion into the spinal zone, for magnetic resonance (MR) compatible instruments, is aligned and positioned under MR control. The instrument is of plastics, which is invisible on a nuclear spin radiology view, with a metal which can be seen. The trocar sleeve (1) can be fixed in human tissue (2).

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruch 1.The invention relates to a device according to the preamble of claim 1.

Problemproblem

Für einige chirurgische Eingriffe im spinalen Raum muss man einen Zugang zu diesem legen. Die hier vorgelegte Erfindung soll eine neuartige Zugangsvorrichtung zum spinalen Raum darstellen.For some surgical interventions in the spinal space, one has to have access to it. This one presented invention is to represent a novel access device to the spinal space.

Lösungsolution

Die Lösung des gestellten Problems wird anhand der folgenden Figuren dargestellt:The solution to the problem presented is illustrated by the following figures:

Fig. 1 Querschnitt durch die Wirbelsäule mit Trokar Fig. 1 cross section through the spine with trocar

Fig. 2 Ansicht der Trokarhülse Fig. 2 view of the trocar sleeve

Fig. 3a Querschnitt wie Fig. 1 mit Trokareinsatz Fig. 3a cross section like Fig. 1 with trocar insert

Fig. 3b Trokareinsatz Fig. 3b trocar insert

Fig. 4 Querschnitt wie Fig. 3 mit Trokareinsatz und Nadel Fig. 4 cross section like Fig. 3 with trocar insert and needle

Fig. 5 Querschnitt wie Fig. 4 mit innerer vorgebogener Nadel Fig. 5 cross section as Fig. 4 with the inner pre-bent needle

Fig. 6 Nadelgeometrien Fig. 6 needle geometries

Fig. 7 Querschnitt wie Fig. 5 mit einem flexiblen Instrument Fig. 7 cross section as Fig. 5 with a flexible instrument

In herkömmlicher Technik wird zunächst eine Trokarhülse 1 durch das Gewebe 2 und die Bandscheibe 6 zwischen zwei Wirbelkörpern 8 und 9 herangeführt. Die Trokarhülse hat ein Griffstück 4, welches z. B. gerändelt ist, einen Gewindeaufsatz 5 der in Fig. 2 gezeigt ist, und ein inneres Lumen 3. Eine solche Trokarhülse kann auf herkömmliche Weise mit einem inneren Trokardorn durch das Gewebe an die Bandscheibe geschraubt oder gebohrt werden. Typische Geometrien für das Lumen 3 sind Größen zwischen 3 und 12 mm, typischerweise 10 mm. Solche Trokarhülsen sind u. a. als Thoracoport bekannt von der Firma Autosuture und werden in der Medizin verwendet um endoskopische Operationen im Brustkorbbereich durchzuführen und den Zugang zu Körperhöhlen zu ermöglichen. Die vorgestellte Erfindung dagegen soll einen Zugang zu Gewebestrukturen, vorzugsweise im Bereich der Wirbelsäule, schaffen. Eine solche Trokarhülse ist typischerweise aus Kunststoff oder Metall gefertigt. Um dieses Verfahren im Kernspintomographen sichtbar zu machen, könnte es sich hier um einen Werkstoff wie z. B. Titan handeln, oder einen Kunststoff wie PEEK, PE, PP, PS, oder Polyurethan. Ein solcher Kunststoff kann mit kernspinaktiven Partikeln durchsetzt sein, um im Kernspintomographen ausreichend sichtbar zu sein oder mit Markern versehen werden. Die hier beschriebene Anordnung ist in Fig. 1 gezeigt.In conventional technology, a trocar sleeve 1 is first introduced through the tissue 2 and the intervertebral disc 6 between two vertebral bodies 8 and 9 . The trocar sleeve has a handle 4 , which, for. B. is knurled, a threaded attachment 5 shown in Fig. 2, and an inner lumen 3rd Such a trocar sleeve can be screwed or drilled through the tissue to the intervertebral disc in a conventional manner using an inner trocar mandrel. Typical geometries for the lumen 3 are sizes between 3 and 12 mm, typically 10 mm. Such trocar sleeves are known, inter alia, as Thoracoport by the company Autosuture and are used in medicine to carry out endoscopic operations in the chest area and to allow access to body cavities. The presented invention, on the other hand, is intended to provide access to tissue structures, preferably in the area of the spine. Such a trocar sleeve is typically made of plastic or metal. In order to make this procedure visible in the magnetic resonance tomograph, it could be a material such as B. titanium, or a plastic such as PEEK, PE, PP, PS, or polyurethane. Such a plastic can be permeated with nuclear spin-active particles in order to be sufficiently visible in the magnetic resonance tomograph or to be provided with markers. The arrangement described here is shown in FIG. 1.

In Fig. 3a ist gezeigt, wie in das Lumen 3 der Trokarhülse 1 ein Trokarhülseneinsatz 10 eingeschoben wird. Dieser ist zylinderförmig und hat ein in Längsrichtung durchgehendes Loch 21 wie in Fig. 3b gezeigt. Die Trokarhülse 1 ist mit Markern 22 versehen, die eine Orientierung und Positionierung der Vorrichtung unter radiologischer Sicht erlauben. Dieser Trokarhülseneinsatz sitzt im distalen Ende auf der Bandscheibe auf. In Fig. 4 ist gezeigt, wie nun eine Nadel 11 durch das Längsloch 21 der Trokarhülse 10 bis an die Bandscheibe 6 und mittels des angeschliffenen distalen Endes 19 der Nadel 11 durch die Bandscheibe 6 in den spinalen Gang 7 durch Vorschub per Hand am Griff 13 der Nadel, welche ein LuerLock sein kann, geschoben wird. Es entsteht ein Durchstich 12 der Bandscheibe. Das distale Ende der Nadel kann in verschiedener Form angeschliffen sein, vorzugsweise wird ein Trokarschliff genutzt. Durch diese Nadel 11 kann nun, wie in Fig. 5 dargestellt, eine innere vorgebogene Nadel 14 geschoben werden, welche über ein Griffstück 15 bedient wird. Das distale Ende 20 der inneren vorgebogenen Nadel 14 ist am vorgebogenen Teil 16 derart angebracht, dass sich dieses in den spinalen Gang 7 vorschiebt. Das distale Ende ist vorzugsweise atraumatisch angeschliffen (Fig. 6). Eine solche Vorrichtung ist bereits bekannt aus der Patentschrift P 44 13 026.0. Der Unterschied ist jedoch, dass das distale Ende 20 der inneren vorgebogenen Nadel hier atraumatisch angeschliffen ist. In Fig. 7 ist nun gezeigt, wie durch die innere flexible Nadel 14 ein Instrument, in diesem Fall ein flexibles Endoskop 18 mit seinem distalen Teil 17, durchgeschoben werden kann. Die innere vorgebogene Nadel 14 wirkt daher als definierte Einführung für das Applikator - Instrument. Ein solches Applikator - Instrument kann ein flexibles Endoskop sein mit weiteren Lumen für Spülungen oder Gerätschaften wie Laserfasern oder Hochfrequenz- oder Kryovorrichtungen. Der typische Durchmesser für Trokarhülseneinsätze 10 beträgt 3 bis 12 mm, typischer liegt der Außendurchmesser bei ca. 10 mm. Die typischen Durchmesser für die eingeführten Nadeln 11 und 14 liegen zwischen 1,5 und 3 mm. Ein typisches Innenlumen einer vorgebogenen Nadel 14 beträgt 1 bis 1,8 mm. Das flexible Endoskop 18 kann dann aus dem distalen Ende 20 der inneren vorgebogenen Nadel 14 bis zu 60 cm herausgeschoben werden. In Fig. 3a as a Trokarhülseneinsatz 10 is inserted into the lumen 3 of the trocar sleeve 1 is shown. This is cylindrical and has a longitudinal hole 21 as shown in Fig. 3b. The trocar sleeve 1 is provided with markers 22 , which allow the device to be oriented and positioned under a radiological view. This trocar sleeve insert sits on the intervertebral disc in the distal end. FIG. 4 shows how a needle 11 now passes through the longitudinal hole 21 of the trocar sleeve 10 to the intervertebral disc 6 and by means of the ground distal end 19 of the needle 11 through the intervertebral disc 6 into the spinal passage 7 by manual feed on the handle 13 the needle, which can be a LuerLock, is pushed. There is a puncture 12 of the intervertebral disc. The distal end of the needle can be ground in various forms, preferably a trocar cut is used. Through this needle 11 , as shown in FIG. 5, an inner pre-bent needle 14 can now be pushed, which is operated via a handle 15 . The distal end 20 of the inner pre-bent needle 14 is attached to the pre-bent part 16 in such a way that it advances into the spinal duct 7 . The distal end is preferably ground atraumatically ( Fig. 6). Such a device is already known from patent specification P 44 13 026.0. The difference, however, is that the distal end 20 of the inner pre-bent needle is ground atraumatically here. In Fig. 7 there is shown how by the inner flexible needle 14 a tool can be pushed in this case, a flexible endoscope 18 with its distal section 17. The inner pre-bent needle 14 therefore acts as a defined introduction for the applicator instrument. Such an applicator instrument can be a flexible endoscope with additional lumens for irrigation or devices such as laser fibers or high-frequency or cryogenic devices. The typical diameter for trocar sleeve inserts 10 is 3 to 12 mm, more typically the outer diameter is approximately 10 mm. The typical diameters for the inserted needles 11 and 14 are between 1.5 and 3 mm. A typical inner lumen of a pre-bent needle 14 is 1 to 1.8 mm. The flexible endoscope 18 can then be pushed out of the distal end 20 of the inner pre-bent needle 14 by up to 60 cm.

Bezeichneridentifiers

11

Trokarhülse
trocar

22

Muskel- und Fettgewebe
Muscle and fat tissue

33

Lumen der Trokarhülse
Lumen of the trocar sleeve

44

Griffstüch der Trokarhülse, z. B. gerendelt
Handle of the trocar sleeve, e.g. B. rendered

55

Gewindeaufsatz
threaded attachment

66

Bandscheibe
disc

77

Spinaler Gang
Spinal duct

88th

Wirbel
whirl

99

Wirbel
whirl

1010

Trokarhülseneinsatz mit Loch
Trocar sleeve insert with hole

1111

Nadel
needle

1212

Durchstich durch Bandscheibe
Puncture through intervertebral disc

1313

Griff an Nadel, "Luer"-Teil
Handle on needle, "Luer" part

1414

innere vorgebogene Nadel
inner pre-bent needle

1515

Griffstück der inneren Nadel, "Luer"-Teil
Handle of the inner needle, "Luer" part

1616

vorgebogener distaler Teil der inneren Nadel
pre-bent distal part of the inner needle

1717

distaler Teil des flexiblen Endoskops
distal part of the flexible endoscope

1818

flexibles Endoskop
flexible endoscope

1919

distales Ende der Nadel, Anschliff
distal end of the needle, bevel

2020

distales Ende der inneren vorgebogenen Nadel, Anschliff
distal end of the inner pre-bent needle, bevel

2121

Längsloch in Trokarhülseneinsatz
Elongated hole in the trocar sleeve insert

2222

Marker
marker

Claims (9)

1. Vorrichtung zur Schaffung eines minimal-invasiven Zuganges für MR-kompatible Instrumente, dadurch gekennzeichnet, daß besagte Vorrichtung unter MR-Kontrolle ausgerichtet und positioniert werden kann.1. Device for creating a minimally invasive access for MR-compatible instruments, characterized in that said device can be aligned and positioned under MR control. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß besagte Vorrichtung aus einem unter kernspinradiologischer Sicht nicht sichtbarem Material, vorzugsweise Kunststoff, gefertigt ist.2. Device according to claim 1, characterized in that said device from one material that is not visible under nuclear spin radiology, preferably plastic, is made. 3. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß besagte Vorrichtung mit mehreren kontrastmittelgefüllten Markern versehen ist, die unter kernspinradiologischer Sicht eine Positionierung ermöglichen.3. Device according to claim 1 and 2, characterized in that said device with several contrast medium-filled markers are provided, which are from a nuclear spin radiological point of view enable positioning. 4. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß besagte Vorrichtung, oder Teile davon, aus einer Anzahl von Volumina besteht, die mit einer im radiologischen Sichtverfahren sich positiv darstellenden magnetischen oder sich negativ darstellenden Flüssigkeit gefüllt sind.4. Apparatus according to claim 1 and 2, characterized in that said device, or Parts of it consist of a number of volumes that match one in the radiological Visual methods that are positive or magnetic Liquid are filled. 5. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß besagte Vorrichtung, aus einem mit Metallteilen versetzten Kunststoff gefertigt ist der eine Sichtbarmachung der Vorrichtung im Kernspintomographen ermöglicht.5. Apparatus according to claim 1 and 2, characterized in that said device, from a plastic with metal parts is made visible Device in the MRI enables. 6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß besagte Vorrichtung aus einem unter kernspinradiologischer Sicht sich darstellenden Material, vorzugsweise Titan oder Titanlegierungen, gefertigt ist.6. The device according to claim 1, characterized in that said device from one material from the nuclear spin radiological point of view, preferably titanium or Titanium alloys. 7. Vorrichtung nach mindestens einem der hier aufgeführten Ansprüche, dadurch gekennzeichnet, daß besagte Vorrichtung mit mehreren optisch aktiven oder optisch reflektierenden angesetzten Positionierpunkten versehen ist, welche von einem entsprechenden Kamerasystem beobachtet werden und aus deren Position zueinander die Position und Ausrichtung der Vorrichtung errechnet werden kann.7. The device according to at least one of the claims listed here, characterized characterized in that said device with several optically active or optically reflective positioning points is provided, which by a corresponding camera system are observed and from their position to each other Position and orientation of the device can be calculated. 8. Vorrichtung nach mindestens einem der hier aufgeführten Ansprüche, dadurch gekennzeichnet, daß die Trokarhülse über ein Außengewinde zur Fixierung im menschlichen Gewebe verfügt.8. The device according to at least one of the claims listed here, characterized characterized in that the trocar sleeve has an external thread for fixation in human Fabric. 9. Vorrichtung nach mindestens einem der hier aufgeführten Ansprüche, dadurch gekennzeichnet, daß Trokarhülseneinsätze mit verschiedenen Innendurchmessern in die Trokarhülse eingesetzt werden können.9. The device according to at least one of the claims listed here, characterized characterized that trocar sleeve inserts with different inner diameters in the Trocar sleeve can be used.
DE10042025A 2000-08-26 2000-08-26 Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion Ceased DE10042025A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10042025A DE10042025A1 (en) 2000-08-26 2000-08-26 Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10042025A DE10042025A1 (en) 2000-08-26 2000-08-26 Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion

Publications (1)

Publication Number Publication Date
DE10042025A1 true DE10042025A1 (en) 2002-04-04

Family

ID=7653918

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10042025A Ceased DE10042025A1 (en) 2000-08-26 2000-08-26 Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion

Country Status (1)

Country Link
DE (1) DE10042025A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103948365A (en) * 2014-05-13 2014-07-30 黎庆初 Working channel system of novel spinal endoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103948365A (en) * 2014-05-13 2014-07-30 黎庆初 Working channel system of novel spinal endoscope

Similar Documents

Publication Publication Date Title
DE3504292C1 (en) Instrument for endoscopic interventions, especially for percutaneous gallstone removal or gallbladder surgery
EP0967935B1 (en) Set of surgical instruments
EP1932483B1 (en) Medical device for determining the position of intracorporal implants
DE69629557T2 (en) VERESS NEEDLE AND CANNULA ARRANGEMENT
EP2049037B1 (en) Device for introducing and positioning surgical instruments
EP1967155B1 (en) Medical clamp, in particular spinal clamp
DE19726141A1 (en) Device for inserting medical instrument into neuronal part of head
DE19510455A1 (en) Surgical instrument for the abrupt insertion of an intraosseous trocar needle
DE3206782A1 (en) SURGICAL INSTRUMENT
DE102005026467A1 (en) Apparatus for providing transcutaneous access to an endoscopic surgical field
DE102006042889A1 (en) Medical instrument
DE10029737B4 (en) Navigation of a medical instrument
WO2002011629A1 (en) Device for the introduction of medical items
DE60210679T2 (en) DEVICE FOR STABILIZING AND / OR FOR POSITIONING A MEDICAL TOOL INTO A BODY HEIGHT
WO1998017191A1 (en) Self-locking holding device with single-point fixation
DE102006037604B4 (en) Auxiliary medical device for insertion into the body of a patient and positioning system for percutaneous interventions with such an auxiliary instrument
DE10029368A1 (en) Neural surgery navigation system has markers fixed to hole in head reduces patient anxiety
WO1993022975A1 (en) Aiming device for setting pedicle screws in a vertebra
DE102004012680A1 (en) Device and method for joining or fixing tissue, comprising tube and self-bending surgical needle
DE10042025A1 (en) Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion
EP1029509A1 (en) Device for cutting and aspirating tissue
DE10032126B4 (en) Instrument for inserting a connecting rod into and through mutually aligned transverse bores in the heads of two or more pedicle screws screwed into the spine
DE102014015316A1 (en) Tunnelierer
WO2003079915A2 (en) Medical instrument for treating tissue by means of high-frequency current and medical system comprising such a medical instrument
DE102016119065B4 (en) Needle stockings with strap system

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: MRI DEVICES DAUM GMBH, 19061 SCHWERIN, DE

8131 Rejection