Cervical Motion Disc Inserter
AssigneeDePuy Synthes Products, Inc.
InventorsThomas M. DiMauro, Edward B. Zalenski
Life of this patent
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Abstract
A novel inserter for inserting a prosthetic cervical motion disc, wherein the distal end portion of the inserter features a pair of projections that are adapted to move slidably and transversely relative to one another (like a wrench) in order to engage a prosthetic cervical motion disc.
Claims22
A cervical motion disc inserter comprising:
- a. a longitudinal shaft having a distal end portion comprising
- i. a first medial surface having a first recess therein,
- ii. a first transverse surface extending transversely from the medial surface, and
- iii. a distal end forming a first projection, and
- b. an engagement element comprising:
- i. a second medial surface opposing the first medial surface of the distal end portion of the longitudinal shaft,
- ii. an alignment pin extending transversely from the second medial surface and slidably received within the first recess,
- iii. a distal end forming a second projection.
A cervical motion disc inserter comprising:
- a) a longitudinal shaft having a distal end portion comprising a first transverse surface and a first projection,
- b) an engagement element comprising a distal end portion comprising a second transverse surface and a second projection, and
- c) means for providing relative translation of the first transverse upon the second transverse surface.
The assembly of claim 13 wherein the head and neck region of the cervical motion disc define bilateral grooves.
A cervical motion disc inserter comprising:
- a) a longitudinal shaft having a distal end portion comprising a first transverse surface and a first projection, and
- b) an engagement element comprising a distal end portion comprising a second transverse surface and a second projection,
- wherein the first transverse surface is adapted to translate upon the second transverse surface and thereby adjust a distance between the first and second projections.
A cervical motion disc inserter comprising:
- a) a longitudinal shaft having a distal end portion comprising a first medial surface and a first projection, and
- b) an engagement element comprising a distal end portion comprising a second medial surface and a second projection,
- wherein the first medial surface opposes the second medial surface,
- wherein the distal portion of the longitudinal shaft and the distal portion of the engagement element form a set of spring-loaded jaws.
An assembly for use in cervical intervetebral disc surgery, comprising:
- a) a prosthetic cervical motion disc comprising a proximal end having an attachment surface, and
- b) a cervical motion disc inserter comprising:
- i) a longitudinal shaft having a distal end portion comprising a first medial surface and a first projection,
- ii) an engagement element comprising a distal end portion comprising a second medial surface and a second projection,
- wherein the first medial surface opposes the second medial surface,
- wherein the distal portion of the longitudinal shaft and the distal portion of the engagement element form a set of spring-loaded jaws, and
- wherein the first and second projections engage the attachment surface of the cervical motion disc.
An assembly for use in cervical intervetebral disc surgery, comprising:
- a) a prosthetic cervical motion disc comprising a proximal end having an attachment surface, and
- b) an adjustable wrench having a set of spring-loaded jaws,
- wherein the jaws engage the attachment surface of the cervical motion disc.
Dependencies are inferred from the claim text.