GB2076657A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Apparatus for external fixation of part of the human or animal skeletal structure
Assignee: Individual
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Filing: 1981-06-01
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Granted: —
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Expires: 2001-06-01
Abstract
Abstract Apparatus for the external fixation of part of the human or animal skeletal structure particularly for a long bone such as a tibia without the use of plaster or of penetration into the interior of the bone and usable for applying traction to a bone, such as a tibia, and for arthrodesis of the ankle or knee joint comprises a pair of collars 1 through which the limb of a patient is passed and spacing rods 2 interconnecting the collars. The rods 2 carry swivellable and axially- adjustable clamps 3 which are fitted with pins 4 which penetrate the limb and engage the outer surface of a bone to be set. The pins 4 are slidable with respect to the clamps and together hold the bone or fractured parts firmly in the required position for setting. By appropriately inclining the pins 4 and sliding the clamps 3 on the rods 2 traction may be applied to the bone. <IMAGE>
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 05:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/60; A61B17/62
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
151 words
Apparatus for the external fixation of part of the human or animal skeletal structure comprising at least a pair of collars through which a limb is passed, the collars being spaced apart longitudinally of the limb by a plurality of elongate spacers extending between the collars longitudinally of the limb, and spaced apart circumferentially of the collars, each of the spacers carrying a plurality of clamps slidable, when loosened, to selected positions in the length of the respective spacer and each clamp carrying a pin extending inwardly towards the longitudinal axis of the collars, the pins being adjustable in the respective clamps to adjust the effective lengths of the pins inwardly of the clamps, to enable the pins to be inserted into the limb to engage against the outside of a bone or bones to be fixed and hence to grip the or each bone firmly between a plurality of pins.
Claim 2
Dependent Claim
151 words
Apparatus for the external fixation of part of the human or animal skeletal structure comprising at least a pair of collars through which a limb is passed, the collars being spaced apart longitudinally of the limb by a plurality of elongate spacers extending between the collars longitudinally of the limb, and spaced apart circumferentially of the collars, each of the spacers carrying a plurality of clamps slidable, when loosened, to selected positions in the length of the respective spacer and each clamp carrying a pin extending inwardly towards the longitudinal axis of the collars, the pins being adjustable in the respective clamps to adjust the effective lengths of the pins inwardly of the clamps, to enable the pins to be inserted into the limb to engage against the outside of a bone or bones to be fixed and hence to grip the or each bone firmly between a plurality of pins.
Claim 3
Dependent Claim
44 words
Apparatus as claimed in Claim 1 comprising three spacers spaced apart at substantially equal circumferential distances around the collars, whereby at each transverse plane at which the bone is gripped, the bone will be supported at three points spaced apart circumferentially around the bone.
Claim 4
Dependent Claim
50 words
Apparatus as claimed in Claim 1 or 2 in which the pins are pointed at the ends which, in use, are inserted into the limb and engage the bone, whereby the pointed ends of the pins can be located in locating holes made in the outer surface of the bone.
Claim 5
Dependent Claim
49 words
Apparatus as claimed in any preceding claim in which the spacers are cylindrical rods and the clamps can be swung around the rods, as well as being slidable along them, thereby to enable the angles of inclination of the pins in planes parallel to the collars to be altered.
Claim 6
Dependent Claim
46 words
Apparatus as claimed in any preceding claim in which the clamps have swivel joints to enable the pins to be set at inclinations toward one or other of the collars, whereby the pins can be used to impart a component of thrust longitudinally of~ the bone.
Claim 7
Dependent Claim
35 words
Apparatus as claimed in Claim 5 in which the clamps are provided with calibrated adjusting devices to effect adjustment of the clamps longitudinally of the spacers to produce a required
extension or rate of extension.
Claim 8
Dependent Claim
27 words
Apparatus for the external fixation of part of the human or animal skeletal structure constructed and arranged substantially as described herein and shown in the accompanying drawing.
Claim 9
Dependent Claim
27 words
Apparatus for the external fixation of part of the human or animal skeletal structure constructed and arranged substantially as described herein and shown in the accompanying drawing.
References Cited (Backward Citations)
No citation records indexed.
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