IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0372104
(2016-12-07)
|
등록번호 |
US-9844401
(2017-12-19)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- DEPUY SYNTHES PRODUCTS, INC.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
2 |
초록
▼
A bone plate having a first, bone-facing surface and an opposing second surface has an elongate shaft portion and a head portion that is shorter and wider in comparison thereto, with at least one through hole extending through the bone plate from the first surface to the second surface in the shaft
A bone plate having a first, bone-facing surface and an opposing second surface has an elongate shaft portion and a head portion that is shorter and wider in comparison thereto, with at least one through hole extending through the bone plate from the first surface to the second surface in the shaft portion. The through hole comprises a variable-angle portion with a hole axis configured to receive a threaded head of a locking screw therein at a desired angle within a permitted range of angulation relative to the hole axis. The second surface has at least one depression which extends therein along a portion of the second surface between the side wall and the through hole, the depression extending about a periphery of the through hole.
대표청구항
▼
1. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion ex
1. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;a depression extending into the second surface about at least a portion of a periphery of one of the through holes; anda cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion, wherein a distance of a surface of the cavity from the second surface of the plate body increases in a direction toward the head portion. 2. The bone plate of claim 1, wherein the depression extends about the first one of the through holes, the cavity and the depression being open to one another. 3. The bone plate of claim 1, wherein the head portion of the plate body is sized and shaped to be positioned over a head portion of a long bone. 4. The bone plate of claim 1, wherein the depression extends about an entire periphery of the through hole. 5. The bone plate of claim 1, wherein an edge of the depression is spaced from the lateral side walls of the plate body. 6. The bone plate of claim 1, wherein the depression is defined by a bottom portion and an edge portion. 7. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;a depression extending into the second surface about at least a portion of a periphery of one of the through holes; anda cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,wherein the depression has a greater extension in a transverse direction of the bone plate than the through hole. 8. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;a depression extending into the second surface about at least a portion of a periphery of one of the through holes; anda cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,wherein the depression has a substantially rectangular shape. 9. The bone plate of claim 8, wherein the edge portion has a curved cross-sectional profile. 10. The bone plate of claim 8, wherein the bottom portion is substantially planar. 11. The bone plate of claim 8, wherein the edge portion and the bottom portion are connected to define a smooth surface of the depression. 12. The bone plate of claim 11, wherein an edge of the depression and the through hole recess overlap. 13. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;a depression extending into the second surface about at least a portion of a periphery of one of the through holes; anda cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,wherein one of the through holes is formed as part of a combination hole which includes a compression hole, the compression hole being elongated in a longitudinal direction of the shaft portion and having an unthreaded inner surface tapering in the direction of the first surface. 14. The bone plate of claim 13, wherein the one of the through holes further comprises a variable angle portion overlapping with the compression hole portion, the variable angle portion configured to receive a threaded head of a locking screw at a desired angle within a permitted range of angulation relative to a hole axis. 15. The bone plate of claim 14, wherein the variable angle portion includes an engaging structure for engaging the threaded head of the locking screw, the engaging structure interrupted by a plurality of radially extending recesses. 16. The bone plate of claim 15, wherein one of the radially extending recesses extending toward one of the lateral side walls, an edge of the depression overlapping with the one of the radially extending recesses. 17. The bone plate of claim 13, wherein the one of the through holes further comprises a locking hole portion including a threading extending thereabout to lockingly receive a correspondingly threaded head of a locking screw. 18. A bone plate, comprising: a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;a depression extending into the second surface about at least a portion of a periphery of one of the through holes;a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion; anda recess extending into the first surface obliquely from one of the lateral side walls, a depth of the recess being largest at the lateral side wall from which it extends.
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