WO2010057980A1 - Surgical instrument for use in spinal surgery operations - Google Patents

Surgical instrument for use in spinal surgery operations Download PDF

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Publication number
WO2010057980A1
WO2010057980A1 PCT/EP2009/065559 EP2009065559W WO2010057980A1 WO 2010057980 A1 WO2010057980 A1 WO 2010057980A1 EP 2009065559 W EP2009065559 W EP 2009065559W WO 2010057980 A1 WO2010057980 A1 WO 2010057980A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
surgical instrument
portion
fork
use
spinal surgery
Prior art date
Application number
PCT/EP2009/065559
Other languages
French (fr)
Inventor
Giuseppe Calvosa
Miria Tenucci
Renato Casella
Original Assignee
N.B.R. New Biotechnology Research
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

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025Joint distractors
    • A61B2017/0256Joint distractors for the spine

Abstract

A surgical instrument (1) for use in spinal surgery operations, comprising a handle portion (2) which is adapted to be gripped by the surgeon and terminates, at one end, in a curvilinear blending portion (3) that terminates in a fork-like portion (4).

Description

SURGICAL INSTRUMENT FOR USE IN SPINAL SURGERY OPERATIONS

Technical Field

The present invention relates to a surgical instrument for use in spinal surgery operations.

More particularly, the invention relates to a surgical instrument that makes it possible to make the paravertebral muscles divaricate momentarily, and with minimal intervention, for the insertion of transpedicular screws. Background Art As is known, the placement of transpedicular screws entails providing an incision at the level of the spinal column of the patient, exposing the spinal column, so as to be able to access the mamillary processes, i.e., the intersection between the transverse process and the lower third of the articular processes, in order to be able to position the transpedicular screws at the lower edge of the articular processes at the junction with the transverse process.

This operation is normally performed by providing an incision, as mentioned, and by making the paravertebral muscles divaricate with more or less invasive divaricators. However, divarication of the paravertebral muscles is today still performed manually by the surgeon by using divaricators with "hands" or with more or less invasive prongs on the muscle bundles, and it is further not possible to perform a selective divarication of the muscle bundles.

Traditional divaricators open the paravertebral muscles with a broad detachment thereof and therefore with considerable pain and bleeding to the patient in the postoperative phase. Disclosure of the Invention

The aim of the present invention is to provide a surgical instrument for use in spinal surgery operations that makes it possible to facilitate the divarication of the paravertebral muscles, thus clearing for the surgeon a work area that is adequate for positioning said transpedicular screws.

Within this aim, an object of the present invention is to provide a surgical instrument that allows making the paravertebral muscles divaricate only momentarily for the insertion of transpedicular screws. Another object of the present invention is to provide a surgical instrument that can be handled easily by the surgeon and offers great assurance of reliability as regards the action performed.

Another object of the present invention is to provide a surgical instrument that is highly reliable, relatively simple to provide and has competitive costs.

This aim and these and other objects that will become better apparent hereinafter are achieved by a surgical instrument for use in the surgical operation for positioning the transpedicular screws in the spinal column of a patient, characterized in that it comprises a handle portion that is adapted to be gripped by the surgeon and terminates, at one end, in a curvilinear blending portion that terminates in a fork-like portion. Brief description of the drawings

Further characteristics and advantages of the invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment of the surgical instrument according to the present. invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:

Figure 1 is a perspective view of a surgical instrument according to the present invention; Figure 2 is a perspective view of a method of using the surgical instrument according to the present invention;

Figure 3 is a view of the use of the surgical instrument according to the invention for making the paravertebral muscles divaricate temporarily;

Figure 4 is a sectional view of the use of the surgical instrument according to the present invention. Ways of carrying out the Invention

With reference to the figures, a surgical instrument according to the present invention, generally designated by the reference numeral 1 , comprises a handle portion 2, which is conveniently shaped so that it can be gripped easily by the surgeon and terminates, at one end, in a curvilinear portion 3 that in turn terminates in a fork-like end 4.

Conveniently, the fork-like end 4 has a pair of lateral tips 4a, which are mutually blended into a curvilinear profile 4b.

The lateral tips advantageously have beveled ends. The fork portion 4 lies on a plane that is substantially parallel to the plane on which the handle portion 2 lies, with the curvilinear blending portion 3 accordingly blending two planes in which the handle portion 2 of the surgical instrument 1 and the fork-like portion 4 lie respectively.

Conveniently, the fork-like portion 4 is used, during the surgical procedure, for insertion in the transverse processes and thus for performing a sort of divarication as shown in Figure 5, of the paravertebral muscles 6, thus making it possible to expose the spinal column 7 on which the surgeon can perform the required operation, such as for example inserting transpedicular screws, which are not shown in the figures. Therefore, the instrument according to the invention allows divarication of the paravertebral muscles 6, by using simultaneously a plurality of such instruments, for example two for each side of the spinal column, as shown in Figure 3, maintaining this divarication as long as necessary. Substantially, the fork portion 4 is arranged at, and so as to straddle, the transverse process and therefore the surgeon can perform a lever-like action by supporting the curvilinear blending portion 3 of the surgical instrument, so as to make the paravertebral muscles divaricate, as shown in Figure 3. In practice it has been found that the surgical instrument according to the present invention fully achieves the intended aim and objects, since it allows divarication of the paravertebral muscles, clearing a sufficient area of the spinal column so that the surgeon can perform the surgical procedure of positioning transpedicular screws with minimal muscular injury. The surgical instrument thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.

Moreover, some details may be replaced with other technically equivalent elements. In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to requirements and to the state of the art.

The disclosures in Italian Patent Application No. MI2008A002080 from which this application claims priority are incorporated herein by reference.

Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.

Claims

1. A surgical instrument (1) for use in spinal surgery operations, characterized in that it comprises a handle portion (2) that is adapted to be gripped by the surgeon and terminates, at one end, in a curvilinear blending portion (3) that terminates in a fork-like portion (4).
2. The surgical instrument according to claim 1 , characterized in that said fork-like portion (4) lies in a plane that is substantially parallel to the plane in which said handle portion (2) lies.
3. The surgical instrument according to claim 1 , characterized in that said fork-like portion (4) comprises two lateral tips (4a) which are mutually blended into a curvilinear portion (4b).
4. The surgical instrument according to claim 3, characterized in that the lateral tips (4a) of said fork-like portion (4) have beveled ends.
PCT/EP2009/065559 2008-11-21 2009-11-20 Surgical instrument for use in spinal surgery operations WO2010057980A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITMI20082080A1 ITMI20082080A1 (en) 2008-11-21 2008-11-21 chirugico tool for use in spinal surgery operations.
ITMI2008A002080 2008-11-21

Publications (1)

Publication Number Publication Date
WO2010057980A1 true true WO2010057980A1 (en) 2010-05-27

Family

ID=41226254

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/065559 WO2010057980A1 (en) 2008-11-21 2009-11-20 Surgical instrument for use in spinal surgery operations

Country Status (1)

Country Link
WO (1) WO2010057980A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8900137B1 (en) 2011-04-26 2014-12-02 Nuvasive, Inc. Cervical retractor
US8974381B1 (en) 2011-04-26 2015-03-10 Nuvasive, Inc. Cervical retractor
US9050146B2 (en) 2009-11-10 2015-06-09 Nuvasive, Inc. Method and apparatus for performing spinal surgery
US9113853B1 (en) 2011-08-31 2015-08-25 Nuvasive, Inc. Systems and methods for performing spine surgery
US9307972B2 (en) 2011-05-10 2016-04-12 Nuvasive, Inc. Method and apparatus for performing spinal fusion surgery
US9675389B2 (en) 2009-12-07 2017-06-13 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
US9795370B2 (en) 2014-08-13 2017-10-24 Nuvasive, Inc. Minimally disruptive retractor and associated methods for spinal surgery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863444A (en) * 1956-08-21 1958-12-09 Winsten Joseph Liver retractor for cholecystectomies
US5217463A (en) * 1990-04-11 1993-06-08 Mikhail W F Michael Method for performing knee surgery and retractors for use therein
US20070043265A1 (en) * 2005-08-02 2007-02-22 Tornier Patellar retractor and method of surgical procedure on knee

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863444A (en) * 1956-08-21 1958-12-09 Winsten Joseph Liver retractor for cholecystectomies
US5217463A (en) * 1990-04-11 1993-06-08 Mikhail W F Michael Method for performing knee surgery and retractors for use therein
US20070043265A1 (en) * 2005-08-02 2007-02-22 Tornier Patellar retractor and method of surgical procedure on knee

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9554833B2 (en) 2009-11-10 2017-01-31 Nuvasive, Inc. Method and apparatus for performing spinal surgery
US9050146B2 (en) 2009-11-10 2015-06-09 Nuvasive, Inc. Method and apparatus for performing spinal surgery
US9675389B2 (en) 2009-12-07 2017-06-13 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
US8974381B1 (en) 2011-04-26 2015-03-10 Nuvasive, Inc. Cervical retractor
US8900137B1 (en) 2011-04-26 2014-12-02 Nuvasive, Inc. Cervical retractor
US9307972B2 (en) 2011-05-10 2016-04-12 Nuvasive, Inc. Method and apparatus for performing spinal fusion surgery
US9649099B1 (en) 2011-08-31 2017-05-16 Nuvasive, Inc. Systems and methods for performing spine surgery
US9386971B1 (en) 2011-08-31 2016-07-12 Nuvasive, Inc. Systems and methods for performing spine surgery
US9113853B1 (en) 2011-08-31 2015-08-25 Nuvasive, Inc. Systems and methods for performing spine surgery
USD789530S1 (en) 2011-08-31 2017-06-13 Nuvasive, Inc. Retractor blade
USD814028S1 (en) 2011-08-31 2018-03-27 Nuvasive, Inc. Retractor blade
US10098625B2 (en) 2011-08-31 2018-10-16 Nuvasive, Inc. Systems and methods for performing spine surgery
US9795370B2 (en) 2014-08-13 2017-10-24 Nuvasive, Inc. Minimally disruptive retractor and associated methods for spinal surgery
US9962147B2 (en) 2014-08-13 2018-05-08 Nuvasive, Inc. Minimally disruptive retractor and associated methods for spinal surgery

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