DE4036804A1 - Instruments for decompression of cervical narrow spinal channel - act to remove dorsal edge points of vertebrae and ventral bridge building of damaged segments - Google Patents

Instruments for decompression of cervical narrow spinal channel - act to remove dorsal edge points of vertebrae and ventral bridge building of damaged segments

Info

Publication number
DE4036804A1
DE4036804A1 DE19904036804 DE4036804A DE4036804A1 DE 4036804 A1 DE4036804 A1 DE 4036804A1 DE 19904036804 DE19904036804 DE 19904036804 DE 4036804 A DE4036804 A DE 4036804A DE 4036804 A1 DE4036804 A1 DE 4036804A1
Authority
DE
Germany
Prior art keywords
tube
slats
plates
segments
milling system
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Withdrawn
Application number
DE19904036804
Other languages
German (de)
Inventor
Manfred Prof Dr Schneider
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.)
SCHNEIDER, MANFRED, PROF.DR., O-4090 HALLE, DE
Original Assignee
Martin Luther Universitaet Halle Wittenberg
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 Martin Luther Universitaet Halle Wittenberg filed Critical Martin Luther Universitaet Halle Wittenberg
Priority to DE19904036804 priority Critical patent/DE4036804A1/en
Publication of DE4036804A1 publication Critical patent/DE4036804A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320016Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238Type of minimally invasive operation
    • A61B2017/00261Discectomy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/005Auxiliary appliance with suction drainage system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/007Auxiliary appliance with irrigation system

Abstract

A guide and support casing is introduced percutaneously together with an osteophyte milling system integrated in a rinsing and suction device. The osteophyte milling system comprises two spring steel plates which are curved outwards. The plates are anchored in a drive shaft, and are guided in a positioning tube. By rotation of the tube, the plates can be completely lowered, and if the tube is then turned in the opposite direction, the plates are exposed and freed. The first operative position involves rotating the tube backwards by 2mm, presenting two laterally forward pointing cutting surfaces. With further freeing of the plates, they can be adjusted at an angle of 90 deg. to the drive shaft. Drawing the milling system slightly backwards, the milling segments come into contact with the oseophytes. The drive shaft is connected to a motor, and executes an oscillating movement. USE - For the surgical rectification of cervical spine irregularities, partic. the removal of osteophytes.

Description

Die Erfindung betrifft ein Instrumentarium zur retrograden Dekompression des zervikalen engen Spinalkanals und dient der Entlastung des Rückenmarks bei der spondylogenen Hals­ markschädigung. Die Erfindung kann in der Neurochirurgie und in der Orthopädie eingesetzt werden.The invention relates to instruments for retrograde Decompression of the cervical narrow spinal canal and serves the relief of the spinal cord at the spondylogenic neck marrow damage. The invention can be used in neurosurgery and used in orthopedics.

Die Operation der spondylogenen Halsmarkschädigung erfolgt bisher über das Ausbohren des Bandscheibenraums nach dem Verfahren von Cloward (Cloward, R. B.: Lesions of the intervertebral discs and their treatment by interbody fusion methods. In: Clin. Orthop. Philadelphia 27 1963 S. 51). Die dorsalen, den Spinalkanal einengenden Randzacken werden mit einem abgewinkelten Löffel stückweise abge­ tragen. Mit dem Löffel kann man jedoch nur einen kleinen Teil der Osteophyten erreichen. Beim Arbeiten mit dem Mi­ kroskop kann man aufgrund der besseren Sichtverhältnisse zwar einen kleinen Teil einsehen, der Hauptteil entzieht sich jedoch dem Einblick, da er sich an der Rückseite des Wirbelkörpers erstreckt. Das Abrutschen des abgewinkelten Löffels in Richtung des Rückenmarks wird durch die Erfah­ rung des Operateurs vermieden. Da die Randwülste nur unvollständig entfernt werden können, muß zur Entlastung des Rückenmarks ein zweiter Eingriff von drosal ausgeführt werden, um das Rückenmark aus der Umklammerung zu befreien.The operation of the spondylogenic cervical cord damage takes place hitherto about drilling out the intervertebral disc space after Cloward's method (Cloward, R.B .: Lesions of the intervertebral discs and their treatment by interbody fusion methods. In: Clin. Orthop. Philadelphia 27 1963 P. 51). The dorsal marginal tines constricting the spinal canal be scraped piece by piece with an angled spoon wear. With the spoon you can only make a small one Reach part of the osteophytes. When working with the Mi You can see the microscope because of the better visibility see a small part, the main part deprives However, look at the insight as it is located at the back of the Spine extends. The slipping of the angled Spoon towards the spinal cord is experienced avoidance of the surgeon. Because the ridges only can be removed incompletely, must be relieved of the spinal cord a second drosal operation is performed to free the spinal cord from the clasp.

Das Problem besteht darin, ein perkutanes System zu ent­ wickeln, welches einerseits die Entfernung der dorsalen Randzacken ermöglicht, andererseits die ventrale Brückenbildung des geschädigten Segmentes induziert und durch eine Spongiosaeinschwämmung beschleunigt.The problem is to remove a percutaneous system wrap, which is the removal of the dorsal Edge jags allow, on the other hand the ventral Bridge formation of the damaged segment is induced and accelerated by a spongiosa sponge.

Das erfindungsgemäße Instrumentarium besteht aus einer perkutan einzubringenden kombinierten Führungs- und Abstützhülse und dem eigentlichen Osteophytenfrässystem, welches in einer Spül- und Absaugeinrichtung integriert ist.The instrumentation according to the invention consists of a Combined guide and to be inserted percutaneously Support sleeve and the actual osteophyte milling system, which is integrated in a flushing and suction device is.

Die Führungs- und Abstützhülse besteht aus einem Doppel­ rohr. Am Ende des inneren Rohres befinden sich drei drei­ eckförmige Segmente, die gelenkig angeordnet sind. Das Gelenk ermöglicht eine Auskippbewegung bis 90° zur Rohr­ achse. Durch das darüberliegende Rohr werden die Segmente gestreckt gehalten, so daß eine lanzettförmige Spitze ent­ steht. Beim Zurückziehen des Außenrohres und leichtem Druck kippen die Segmente 90° zur Rohrachse ab und bilden so ein Abstützsystem an der Vorderkante der Wirbelkörper.The guide and support sleeve consists of a double pipe. At the end of the inner tube there are three three corner-shaped segments that are articulated. The  The joint allows a tilting movement up to 90 ° to the pipe axis. The segments are through the tube above kept stretched so that a lancet-shaped tip ent stands. When pulling back the outer tube and applying slight pressure tilt the segments 90 ° to the pipe axis and thus form Support system on the front edge of the vertebrae.

Das Osteophytenfrässystem besteht aus zwei Federstahlla­ mellen, die nach außen gekrümmt vorgespannt sind. Die Lamellen sind in einer Antriebswelle fest verankert und werden in einem Stellrohr geführt. Durch Vordrehen des Rohres können die Lamellen vollständig versenkt werden. Dreht man das Rohr zurück, werden die Lamellen freigege­ ben. Der Fräskopf arbeitet in zwei Positionen (Fig. 1). Die erste Position entsteht durch Zurückdrehen des Rohres um 2 mm. Dabei kann sich die Krümmung der Lamellen noch nicht voll entfalten, so daß zwei seitlich vorn stehende Schneid­ flächen entstehen. Beim weiteren Freigeben der Lamellen können sie sich im Winkel von 90° zur Achse der Antriebs­ welle einstellen. Die Innenfläche der Segmente ist mit Diamantsplittern besetzt, so daß eine retrograde Schneid­ wirkung an der Wirbelrückfläche entsteht. Durch leichtes Zurückziehen des Osteophytenfrässystems kommt die Innen­ fläche der Segmente mit den Osteophyten in Kontakt. Die Antriebswelle ist mit dem Motor verbunden und führt eine oszillierende Bewegung aus. Eine Justiereinrichtung zwi­ schen Antriebswelle und Stellrohr ermöglicht eine 1/10 mm genaue Einstellung des Hubes der Lamellen. Die Länge der Lamellen und ihr Hub werden nach der im Bildwandler erkenn­ baren Größe der Osterophyten eingestellt. Das Stellrohr besitzt einen Schlauchanschluß zur Spülung. Unterhalb des Stellrohres befindet sich das Absaugrohr, um die Spül­ flüssigkeit wieder zu entfernen. Das Gesamtsystem kann durch die Führungs- und Abstützhülse geleitet und so in den Bandscheibenraum geführt werden. Um jedes Abrutschen der Fräse in Richtung Spinalkanal zu verhindern, wird sie wäh­ rend des Fräsvorganges über eine Gleitverbindung mit der Abstützhülse verbunden, so daß nur eine Bewegung nach ven­ tral möglich wird.The osteophyte milling system consists of two spring steel lamellae, which are biased outwards. The slats are firmly anchored in a drive shaft and are guided in an adjusting tube. The slats can be completely recessed by turning the tube. If you turn the tube back, the fins are released. The milling head works in two positions ( Fig. 1). The first position is created by turning the tube back 2 mm. The curvature of the lamellae cannot yet fully unfold, so that two cutting surfaces standing to the side arise. When the slats are released further, they can adjust themselves at an angle of 90 ° to the axis of the drive shaft. The inner surface of the segments is covered with diamond chips, so that a retrograde cutting effect is created on the back surface of the vertebrae. The inner surface of the segments comes into contact with the osteophytes by slightly withdrawing the osteophyte milling system. The drive shaft is connected to the motor and performs an oscillating movement. An adjustment device between the drive shaft and the control tube enables a 1/10 mm precise adjustment of the stroke of the slats. The length of the slats and their stroke are set according to the size of the osterophytes that can be seen in the image converter. The control tube has a hose connection for flushing. The suction tube is located below the control tube to remove the flushing liquid. The entire system can be guided through the guide and support sleeve and thus guided into the intervertebral disc space. In order to prevent any slipping of the cutter in the direction of the spinal canal, it is connected during the milling process via a sliding connection with the support sleeve, so that only a movement toward the center is possible.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Fig. 2 zeigt die Arbeitsweise des Frässystems.An embodiment of the invention is shown in the drawing and will be described in more detail below. Fig. 2 shows the operation of the milling system.

Das erfindungsgemäße Instrumentarium soll nachstehend in Funktion bei einer perkutanen retrograden Dekompression des Spinalkanals näher erläutert werden:The instruments according to the invention are described below in Function in a percutaneous retrograde decompression of the Spinal canal are explained in more detail:

Am Vorderrand des Musculus sternocleidomastoideus wird ein 2 cm langer Hautschnitt gelegt und das Platysma indiziert. Unter Bildwandlerkontrolle wird mit der Führungsabstützhül­ se eingegangen und diese bis zur Vorderfläche der Halswir­ belsäule vorgeschoben. Auf dem geschädigten Segment wird die Führungshülse zu einer Abstützhülse umgewandelt, so daß die Abstützflächen auf dem Wirbelkörper liegen und das Lumen des Rohres freigegeben wird. Das Frässystem kann über diese Hülse vorgeschoben und so durch das vordere Längsband gebracht werden. 2 mm unterhalb des vorderen Längsbandes wird der Fräskopf über die Justiereinrichtung in die Posi­ tion 1 (siehe Fig. 1) gebracht. Mit dieser Fräseinstellung wird der vordere Teil des Anulus fibrosus reseziert. Der Fräskopf wird dann wieder eingezogen und kurz gespült. Jetzt wird das Frässystem durch den Bandscheibenraum ge­ führt und in Höhe der Rückfläche des Wirbelkörpers entfal­ tet. In der Position 2 des Fräskopfes (siehe Fig. 1) ist jetzt ein retrogrades Arbeiten möglich. Nach Führung der Segmente an die Osteophyten wird das Frässystem in der Abstützhülse eingeklinkt und so in Arbeitsposition ge­ bracht. Unter ständiger Bildwandlerkontrolle erfolgt das Abfräsen der Osteophyten (Fig. 2). Dabei erfolgt sowohl eine Spülung, als auch eine Absaugung der Spülflüssigkeit. Durch eine Verstellung des Absaugrohres kann ein Teil des abgesaugten Knochenmaterials unter das vordere Längsband, d.h. in den vorderen Abschnitt des Bandscheibenraums einge­ bracht werden. Nach dem Abfräsen der Osteophyten wird der Fräskopf eingefahren und das System entfernt.A 2 cm skin incision is made on the front edge of the sternocleidomastoid muscle and the platysma is indicated. Under image converter control, the guide support sleeve is received and advanced to the front surface of the cervical spine. On the damaged segment, the guide sleeve is converted into a support sleeve so that the support surfaces lie on the vertebral body and the lumen of the tube is released. The milling system can be advanced over this sleeve and brought through the front longitudinal belt. 2 mm below the front longitudinal belt, the milling head is brought into position 1 via the adjusting device (see FIG. 1). With this milling setting, the anterior part of the annulus fibrosus is resected. The milling head is then retracted and rinsed briefly. Now the milling system is guided through the intervertebral disc space and unfolded at the level of the back surface of the vertebral body. Retrograde working is now possible in position 2 of the milling head (see Fig. 1). After guiding the segments to the osteophytes, the milling system is latched into the support sleeve and thus brought into the working position. The osteophytes are milled off under constant image converter control ( FIG. 2). Both rinsing and suction of the rinsing liquid take place. By adjusting the suction tube, part of the extracted bone material can be placed under the front longitudinal ligament, ie in the front section of the intervertebral disc space. After milling the osteophytes, the milling head is retracted and the system removed.

Claims (4)

1. Instrumentarium zur retrograden Dekompression des zer­ vikalen engen Spinalkanals gekennzeichnet dadurch, daß es aus einer perkutan einzubringenden kombinierten Führungs- und Abstützhülse und dem eigentlichen Osteophytenfrässystem besteht, das in einer Spül- und Absaugvorrichtung integriert ist.1. Instruments for retrograde decompression of the vical narrow spinal canal, characterized in that it consists of a percutaneously introduced combined guide and support sleeve and the actual osteophyte milling system, which is integrated in a flushing and suction device. 2. Instrumentarium nach Anspruch 1, gekennzeichnet da­ durch, daß die kombinierte Führungs- und Abstütz­ hülse aus einem Doppelrohr besteht, wobei am Ende des inneren Rohres drei dreieckförmige Segmente gelenkig angebracht sind und eine Auskippbewegung bis 90° zur Rohrachse gestatten und das darüberliegende Rohr die drei Segmente gestreckt halten und dadurch eine lanzettförmige Spitze bilden, die beim Zurückziehen des Außenrohres und leichtem Druck die Segmente zum Abstützen bis zum Winkel von 90° freigeben.2. Instrument set according to claim 1, characterized there through that the combined guide and support sleeve consists of a double tube, at the end of the inner tube articulated three triangular segments are attached and a tilting movement up to 90 ° Allow pipe axis and the pipe above keep the three segments straight and thereby one form lanceolate tip when retracting the outer tube and light pressure the segments to Release supports up to an angle of 90 °. 3. Instrumentarium nach Anspruch 1, gekennzeichnet da­ durch, daß das Osteozytenfrässystem aus zwei Feder­ stahllamellen besteht, die nach außen gekrümmt ver­ spannt sind und die Federstahllamellen, deren Innen­ flächen mit Diamantsplittern besetzt sind, in einer Antriebswelle fest verankert sind, die durch einen Schrittmotor betrieben wird und die Lamellen in einem Stellrohr geführt werden, wobei durch Zurückdrehen der Welle die Lamellen vollständig versenkt und durch Vordrehen der Welle die unterschiedlichen Schneidpo­ sitionen eingestellt werden.3. Instrument set according to claim 1, characterized there through that the osteocyte milling system from two springs steel slats, which are curved outwards ver are tensioned and the spring steel slats, the inside areas are covered with diamond chips, in one Drive shaft are firmly anchored by a Stepper motor is operated and the slats in one Control tube are guided, whereby by turning back the slats completely sunk and through the shaft Turning the shaft forward the different cutting positions sitions can be set. 4. Instrumentarium nach Anspruch 1 und 3, gekennzeichnet dadurch, daß die beiden Lamellen eine oszillierende Bewegung ausführen, deren Hub exakt einstellbar ist.4. Instrument set according to claim 1 and 3, characterized in that the two slats are oscillating Carry out a movement whose stroke can be precisely adjusted.
DE19904036804 1990-11-19 1990-11-19 Instruments for decompression of cervical narrow spinal channel - act to remove dorsal edge points of vertebrae and ventral bridge building of damaged segments Withdrawn DE4036804A1 (en)

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Cited By (32)

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DE4328690A1 (en) * 1993-08-26 1995-03-02 Man Ceramics Gmbh Vertebral blockage
US5899908A (en) * 1993-02-10 1999-05-04 Sulzer Spine-Tech Inc. Spinal drill tube guide
WO2001008571A1 (en) 1999-08-01 2001-02-08 Disc-O-Tech Medical Technologies Ltd. Method and apparatus for spinal procedures
US7738969B2 (en) 2004-10-15 2010-06-15 Baxano, Inc. Devices and methods for selective surgical removal of tissue
US7857813B2 (en) 2006-08-29 2010-12-28 Baxano, Inc. Tissue access guidewire system and method
US7887565B2 (en) 1993-06-10 2011-02-15 Warsaw Orthopedic, Inc. Apparatus and method for sequential distraction
US7887538B2 (en) 2005-10-15 2011-02-15 Baxano, Inc. Methods and apparatus for tissue modification
US7938830B2 (en) 2004-10-15 2011-05-10 Baxano, Inc. Powered tissue modification devices and methods
US7959577B2 (en) 2007-09-06 2011-06-14 Baxano, Inc. Method, system, and apparatus for neural localization
US8048080B2 (en) 2004-10-15 2011-11-01 Baxano, Inc. Flexible tissue rasp
US8062298B2 (en) 2005-10-15 2011-11-22 Baxano, Inc. Flexible tissue removal devices and methods
US8062300B2 (en) 2006-05-04 2011-11-22 Baxano, Inc. Tissue removal with at least partially flexible devices
US8092456B2 (en) 2005-10-15 2012-01-10 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US8192436B2 (en) 2007-12-07 2012-06-05 Baxano, Inc. Tissue modification devices
US8221397B2 (en) 2004-10-15 2012-07-17 Baxano, Inc. Devices and methods for tissue modification
US8257356B2 (en) 2004-10-15 2012-09-04 Baxano, Inc. Guidewire exchange systems to treat spinal stenosis
US8366712B2 (en) 2005-10-15 2013-02-05 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US8394102B2 (en) 2009-06-25 2013-03-12 Baxano, Inc. Surgical tools for treatment of spinal stenosis
US8398641B2 (en) 2008-07-01 2013-03-19 Baxano, Inc. Tissue modification devices and methods
US8409206B2 (en) 2008-07-01 2013-04-02 Baxano, Inc. Tissue modification devices and methods
US8419653B2 (en) 2005-05-16 2013-04-16 Baxano, Inc. Spinal access and neural localization
US8430881B2 (en) 2004-10-15 2013-04-30 Baxano, Inc. Mechanical tissue modification devices and methods
US8568416B2 (en) 2004-10-15 2013-10-29 Baxano Surgical, Inc. Access and tissue modification systems and methods
US8579902B2 (en) 2004-10-15 2013-11-12 Baxano Signal, Inc. Devices and methods for tissue modification
US8613745B2 (en) 2004-10-15 2013-12-24 Baxano Surgical, Inc. Methods, systems and devices for carpal tunnel release
US8801626B2 (en) 2004-10-15 2014-08-12 Baxano Surgical, Inc. Flexible neural localization devices and methods
US8845639B2 (en) 2008-07-14 2014-09-30 Baxano Surgical, Inc. Tissue modification devices
US9101386B2 (en) 2004-10-15 2015-08-11 Amendia, Inc. Devices and methods for treating tissue
US9247952B2 (en) 2004-10-15 2016-02-02 Amendia, Inc. Devices and methods for tissue access
US9314253B2 (en) 2008-07-01 2016-04-19 Amendia, Inc. Tissue modification devices and methods
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Cited By (52)

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Publication number Priority date Publication date Assignee Title
US5899908A (en) * 1993-02-10 1999-05-04 Sulzer Spine-Tech Inc. Spinal drill tube guide
US7887565B2 (en) 1993-06-10 2011-02-15 Warsaw Orthopedic, Inc. Apparatus and method for sequential distraction
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DE4328690B4 (en) * 1993-08-26 2006-08-17 SDGI Holdings, Inc., Wilmington Intervertebral implant for vertebral body blocking and implantation instrument for positioning the intervertebral implant
DE4328690A1 (en) * 1993-08-26 1995-03-02 Man Ceramics Gmbh Vertebral blockage
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US7189240B1 (en) 1999-08-01 2007-03-13 Disc-O-Tech Medical Technologies Ltd. Method and apparatus for spinal procedures
US9247952B2 (en) 2004-10-15 2016-02-02 Amendia, Inc. Devices and methods for tissue access
US8647346B2 (en) 2004-10-15 2014-02-11 Baxano Surgical, Inc. Devices and methods for tissue modification
US7938830B2 (en) 2004-10-15 2011-05-10 Baxano, Inc. Powered tissue modification devices and methods
US11382647B2 (en) 2004-10-15 2022-07-12 Spinal Elements, Inc. Devices and methods for treating tissue
US7738969B2 (en) 2004-10-15 2010-06-15 Baxano, Inc. Devices and methods for selective surgical removal of tissue
US8048080B2 (en) 2004-10-15 2011-11-01 Baxano, Inc. Flexible tissue rasp
US9101386B2 (en) 2004-10-15 2015-08-11 Amendia, Inc. Devices and methods for treating tissue
US9345491B2 (en) 2004-10-15 2016-05-24 Amendia, Inc. Flexible tissue rasp
US8801626B2 (en) 2004-10-15 2014-08-12 Baxano Surgical, Inc. Flexible neural localization devices and methods
US10052116B2 (en) 2004-10-15 2018-08-21 Amendia, Inc. Devices and methods for treating tissue
US8221397B2 (en) 2004-10-15 2012-07-17 Baxano, Inc. Devices and methods for tissue modification
US8257356B2 (en) 2004-10-15 2012-09-04 Baxano, Inc. Guidewire exchange systems to treat spinal stenosis
US8652138B2 (en) 2004-10-15 2014-02-18 Baxano Surgical, Inc. Flexible tissue rasp
US9320618B2 (en) 2004-10-15 2016-04-26 Amendia, Inc. Access and tissue modification systems and methods
US8617163B2 (en) 2004-10-15 2013-12-31 Baxano Surgical, Inc. Methods, systems and devices for carpal tunnel release
US9463041B2 (en) 2004-10-15 2016-10-11 Amendia, Inc. Devices and methods for tissue access
US9456829B2 (en) 2004-10-15 2016-10-04 Amendia, Inc. Powered tissue modification devices and methods
US8613745B2 (en) 2004-10-15 2013-12-24 Baxano Surgical, Inc. Methods, systems and devices for carpal tunnel release
US8430881B2 (en) 2004-10-15 2013-04-30 Baxano, Inc. Mechanical tissue modification devices and methods
US8579902B2 (en) 2004-10-15 2013-11-12 Baxano Signal, Inc. Devices and methods for tissue modification
US8568416B2 (en) 2004-10-15 2013-10-29 Baxano Surgical, Inc. Access and tissue modification systems and methods
US8419653B2 (en) 2005-05-16 2013-04-16 Baxano, Inc. Spinal access and neural localization
US8092456B2 (en) 2005-10-15 2012-01-10 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US9125682B2 (en) 2005-10-15 2015-09-08 Amendia, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US9492151B2 (en) 2005-10-15 2016-11-15 Amendia, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US8366712B2 (en) 2005-10-15 2013-02-05 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US7887538B2 (en) 2005-10-15 2011-02-15 Baxano, Inc. Methods and apparatus for tissue modification
US8062298B2 (en) 2005-10-15 2011-11-22 Baxano, Inc. Flexible tissue removal devices and methods
US9351741B2 (en) 2006-05-04 2016-05-31 Amendia, Inc. Flexible tissue removal devices and methods
US8062300B2 (en) 2006-05-04 2011-11-22 Baxano, Inc. Tissue removal with at least partially flexible devices
US8585704B2 (en) 2006-05-04 2013-11-19 Baxano Surgical, Inc. Flexible tissue removal devices and methods
US8845637B2 (en) 2006-08-29 2014-09-30 Baxano Surgical, Inc. Tissue access guidewire system and method
US8551097B2 (en) 2006-08-29 2013-10-08 Baxano Surgical, Inc. Tissue access guidewire system and method
US7857813B2 (en) 2006-08-29 2010-12-28 Baxano, Inc. Tissue access guidewire system and method
US8303516B2 (en) 2007-09-06 2012-11-06 Baxano, Inc. Method, system and apparatus for neural localization
US7959577B2 (en) 2007-09-06 2011-06-14 Baxano, Inc. Method, system, and apparatus for neural localization
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