Patent EP0604697A1 successfully refreshed from Google Patents.
EP0604697A1
Expired / Lapsed
EP
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Apparatus for external skeletal fixation
Assignee: Individual
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Filing: 1993-03-11
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Granted: —
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Expires: 2013-03-11
Abstract
Abstract This invention belongs to the field of the medical science - surgery and related to the device for external skeletal fixation, for reduction of the fractures and treatment of different skeletal deformations (A 61 b 17/60). By this invention it is solved the problem of the application of the pins (25), parallel or with different angle between each other, without any kind of the guidance, giving to them three dimensional freedom of the movement and giving nearly equal biomechanical conditions in any plane. Device is high mobile. It is necessary to introduce at list two pins (25) in every fragment of the bone (28). Essence of the invention is in the construction of the complex of the carrier (1) with clamp (2). The number of such complexes corresponds to the number of the pins - one complex for each pin. By the construction it has been realized sliding and rotatory movement of the clamp (2) round and along the body (4) of the carrier (1), and same is possible with carrier (1) which are by its holes (6) pulled on to the bar (3). In other hand by the canals (24) clamps (2) are pulled on to the pins (25). Adjustment of all components each other makes possible three dimensional movements of the pins (25), and after adjustment all components are fixed by the tightening of the nuts (11, 26). So bone fragments are fixed in desirable position which were the goal of this invention.
Inventors
- 👤 Milorad Dr. Mitkovic
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 19:00
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/60; A61B17/64; A61B17/6416; A61B17/6466
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
Device for external fixation of the bones, which is attached to at list two pins (25) in each bone fragment (28), pointed by that , that comprises at list four identical complexes of the carriers (1) with clamps (2), whereby clamp (2), by its cylindric hole (17) pulled on to it, can to slide and to rotate along the cylindrical body (4) of the carrier of the clamp (1) to which it can be attached, that are complexes of the carriers (1) with clamps (2), can to slide and to rotate, by cylindric hole (6) on the carrier (1) pulled on to the bar (3) to which complexes can be fastened, that on the each applied pin (25) by possibility of sliding and rotating pulled on clamps (2) can be fixed by the nut (26) simultaneously to pin (25) and to the body (4) of the carrier (1) and that pins (25) through bone fragments (28) are applied without using of any kind of guidance, the most optimal in the convergent orientation with angle between them from 60 - 90 degrees.
Claim 2
Dependent Claim
161 words
Device according the claim 1 , pointed by that , that on the cylindric body (4) of the carrier (1) continues carrying head (5) with cylindric hole (6) which is bilateral symmetrically cut forming so saddle (7) to which coaxially with the body (4) continues thread part (8), that on the thread part (8) to saddle (7) pulled on cylindric rider (9) by its section (10), whereby bilateral ends (12) of the rider (9) are half circular shaped in order to clasp and to fast the bar (3) by tightening of the nut (11) on the part (8) and that on the free end of the body (4) is screwed screw (13) with lens like head which diameter is bigger than diameter of the body (4) or balls (71) thrown into the hole (73) with spring (72) whereby spring (72) presses to ball (71) which can not slip out because of smaller diameter of the outer end of the hole (73).
Claim 3
Dependent Claim
105 words
Device according to the claim 1, pointed by that , that clamp (2) has special screw (15) with carrying head (16) which has cylindric hole (17), whereby head (16) is bilaterally symmetrically cut forming saddle (18) to which is pulled on rider (19) with teeth (20), that on the screw (15) to the rider (19) pulled on two circular ring like plates (21, 22), shaky connected with two axle (23), which in the complex make canal (24) for the pulling on of the clamp (2) to the pin (23) to which it is fastened by the tightening of the nut (26) to the screw (15).
Claim 4
Dependent Claim
189 words
Device according to claim 1 and second manner of the performance, point ed by that , that bar (29) has two parts (30, 31) which can to move and to rotate, with ball like ends (32, 33) into the spherical ends of the cylindric homesite (34) including its nut for closing (36) and that two identical pressing elements (37, 37') inserted in the homesite (35), have concave surfaces (38) on its outer ends, while frontal parts of their central ends (37, 37') have two opposite orientated and bordered surfaces (39) cut by the rectangular canal in the middle (40), and between the pressing elements (37, 37') there is special screw (41) with screwed plate like wedge (42) which oblique surfaces are in contact with correspond oblique surfaces (39), and by the circular limited plate (44) which is between the head (43) of the screw (41) and wedge (42) whereby plate (44) is into the rectangular canal (40), whereby bilateral on the cylindric homesite (35) are elliptic holes (45) for approach to the imbus hole of the head of the screw (43) for screwing and unscrewing of the screw (41).
Claim 5
Dependent Claim
109 words
Device according to the claims 1 and 3 and according to second manner of the performance, pointed by that , that cylindric clamp (46) has, on one end, hole (47) for the bar (3) or for lever (30, 31) of the bar (29), two parallel holes (48) and two holes, with the convergency of 45 degrees (49) having reference to (48), whereby holes (48, 49) serves for pulling on of the cylindric clamps (46) to the pins (25) and that to the bought ends of the cylindric clamp (46) in the inner threads (50) screwed screws (51, 52) for tightening of the bar (3, 29) and the pins (25).
Claim 6
Dependent Claim
126 words
Device according to the claims 1 and 2 and according to second manner of the performance, pointed by that , that on the ring like segmental carrier (53) there are several identical, with equal distance between each other and with parallel circular holes (54), whereby prismatic tightener (55) through its section is pulled on to one of the holes (54) for pulling on to the bar (3), that on the front of the tightener (55) is threaded hole for screw (57) for tightening of the bar (3) in the holes (54, 56) and that to one of the hole (54), coaxially with it, can be placed cylindric clamp (46) which by the special screw (59) can be fastened to the segmental carrier - half ring (53).
Claim 7
Dependent Claim
145 words
Device for external skeletal fixation according to the variant I, pointed by that , that carrier (60) of the clamp (61) performed as capsule (62) with concave inner surfaces, whereby capsule (62) has bilateral shorter and longer cylindric extensions (63, 64) with inner threads (65), that on the longer extension is performed side hole (66) for bar (3), whereby in the homesite of the capsule (62) inserted clamp (61) from two identical half balls (67, 67') with two parallel gutter at each, forming in complex approximately cylindric canals (68, 68') for pulling on of the clamp (61) to the pare of the pins (25) and that into the longer extension (63) is inserted screw (69) for tightening of the bar (3), while into the shorter extension (64) is inserted screw (70) for tightening of the pins (25) through inner thread (65) of the carrier (60).
Claim 8
Dependent Claim
43 words
Pin for external skeletal fixation, pointed by that , that diameter of its body (76) is wider, whereby before its one end rapidly become narrower (77) so that its diameter further is smaller along the short distance (78) finishing with sharp top (79).
References Cited (Backward Citations)
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