1. An external fixation system comprising a support ring or a ring-segment extending around a central axis (M), the ring or segment thereof comprising a first surface extending perpendicular to central axis (M), a second surface which is parallel to the first surface, and a plurality of spaced apart through openings running parallel to the center axis (M) extending through the ring from the first to the second surface and a third surface which is parallel to the first and second surfaces with a plurality of through openings running parallel to axis (M) extending from the first surface to the third surface and wherein the first, second and third surfaces are axially spaced apart with respect to the central axis (M) from the other surfaces.
2. The external fixation system according to claim 1, wherein the support or ring segment comprises a fourth surface which extends parallel to the first, second and third surfaces wherein a plurality of through openings extend from the second surface to the fourth surface and wherein the fourth surface is spaced with respect to the central axis (M) from the first, second and third surfaces.
3. The external fixation system according to claim 2 wherein the third surface is formed by a plurality of first circumferentially spaced embodiments on the second surface.
4. The external fixation system according to claim 3 wherein the fourth surface is formed by a plurality of circumferentially spaced embodiments on the first surface.
5. The external fixation system according to claim 4, wherein the plurality of spaced apart first embossments are spaced at regular intervals over the second surface and the plurality of spaced apart second embossments are spaced at regular intervals distributed over the first surface.
6. The external fixation system as set forth in claim 4 wherein a first embossment and a second embossment are connected by a means of a web with a neighboring embossment.
7. The external fixation system according to claim 4 wherein the first and second embossments are arranged such that of the first and second embossments alternate around adjacent through openings around the ring.
8. The external fixation system according to claim 1 wherein the first embossments are allocated to every even-numbered through opening of a multiplicity of through openings and the second embodiments are allocated to unevenumbered through opening of the multiplicity of through openings.
9. The orthopaedic fixation ring as set forth in claim 1 wherein edges of the embossments are tapered towards said openings such that a clearance between two neighboring embossments decreases towards the opening and increases from away the openings as viewed in radial direction from the center axis (M).
10. The external fixation system as set forth in claim 1 wherein it comprises at least two ring segments which ring segments are connected by means of screws.
11. The external fixation system according to claim 10, wherein the screws have an axial bore along the middle axis of the screw.
12. An external fixation system comprising:
a circular or part circular ring having first and second parallel planar surfaces with a multiplicity of openings extending therethrough; first and second embossments surrounding the openings, the first embossment extending away from the first ring surface and the second embossment extending away from the second surface, the first and second embossments alternating with respect to adjacent openings, the first and second embossments defining third and fourth planar surfaces each parallel to the first and second surfaces.
13. The external fixation system as set forth in claim 12 wherein a first embossment and a second embossment are connected by a means of a web with a neighboring embossment.
14. The orthopaedic fixation ring as set forth in claim 13 wherein edges of the embossments are tapered towards said openings such that a clearance between two neighboring embossments decreases towards the opening and increases from away the openings as viewed in radial direction from the center axis (M).
15. The external fixation system as set forth in claim 12 wherein it comprises at least two ring segments which ring segments are connected by means of screws.
16. The external fixation system according to claim 10, wherein the screws have an axial bore along the central longitudinal axis of the screw.
17. An orthopedic fixation plate for an external fixator having the shape of a ring or a ring segment extending around a central axis comprising:
a ring-shaped body having a central opening;
a plurality of through holes extending through the ring-shaped body in a direction parallel to the central axis, the ring-shaped body having a two-level upper and lower surface extending perpendicular to the central axis, a first group of the plurality of holes extending through an outer most level of the upper and the innermost level of the lower surfaces and a second group of holes of the plurality of holes extending through an innermost level of the upper and outermost level of the lower surface, the levels defined with respect to a plane perpendicular to the central axis through a center of the ring body.
18. The orthopedic fixation plate as set forth in claim 17 wherein the first group of holes alternate with the second group of holes.
19. The orthopedic fixation plate as set forth in claim 18 wherein the plurality of holes are spaced around the ring body at regular intervals.
20. The orthopedic fixation plate as set forth in claim 18 wherein the outermost level on the upper surface is opposite the innermost level on the lower surface.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A connector apparatus comprising:
a connector;
a step portion provided in a circumference of a rear portion of the connector, the step portion having a front end surface;
a cover member covering a rear surface of the connector, being made of a soft material, the cover member having:
a first tubular member having a first diameter, provided in a rear end thereof;
a second tubular member having a second diameter smaller than the first diameter, provided in a front end thereof, the second tubular member through which a is wire harness is drawn; and
a hook portion provided in the front end thereof, engaging with the step portion; and
an annular member mounted and fixed on the circumference of a front portion of the connector;
wherein the front end surface of the step portion is formed so as to face a rear surface of the annular member when the annular member is mounted and fixed to the connector; and
when the hook portion engages with the step portion and the annular member is fixed to the connectors the hook portion is placed and clamped between the front end surface of the step portion and the rear surface of the annular member, thereby preventing the hook portion from being coming off from the connector.
2. The connector apparatus according to claim 1, further comprising
a engaging means provided in the connector and the annular member, the engaging means engaging between the annular member and the connector by attaching the annular member to the connector from a front of the connector to a rear thereof thereby, preventing the annular member from being coming off to the front of the connector, wherein the hook portion is clamped between a rear surface of the annular member and the front end surface of the step portion.
3. The connector apparatus according to claim 1, further comprising
an antislip means configured to clamp and fix the hook portion, the antislip means provided in at least one of the front end surface of the step portion and the rear surface of the annular member.
4. The connector apparatus according to claim 1, wherein
the connector is one of a pair of connectors engaging with each other through which a through hole of a panel interposed therebetween,
the annular member is a unit main body provided in a panel seal unit mounted to a front circumference of the one of the connectors, and
the unit main body has an annular sealing member made of a soft material, the annular sealing member provided in a front portion of the unit main body and sealing a gap between the panel and the one of the connectors.