Abstract: A holding and fixing mechanism for an orthopedic surgery makes use of a holding plug to fasten together a U-shaped clamping block, a wedging element and a rod body. The clamping block is provided with two through holes capable of cooperating with a wedging portion of the wedging element and the holding plug so as to form an appropriate angle as required between the wedging element and the U-shaped clamping block. The fixation position of the wedging element can be easily adjusted. The holding and fixing mechanism is attained by the knurl-fastening method in place of the conventional screw-fastening method.

Abstract: A vertebral fixation device comprises a hooking element and a clamping element. The hooking element is provided at the top thereof with a plate portion having a fastening hole and at the bottom thereof with a hooked portion. The clamping element is provided at the bottom thereof with a fastening and clamping portion and at the top thereof with a threaded portion engageable with the fastening hole of the plate portion of the hooking element. The clamping element and the hooking element can be caused to hold securely a deformed or injured vertebra by turning and tightening the threaded portion of the clamping element.

Abstract: A vertebral locking and retrieivng system comprises two fixing screws, one fixation crossbar and a plurality of fasteners. Each of the two fixing screws is composed of a horizontal fixing portion and a threaded portion which is fastened onto a vertebra. The fixation crossbar is composed of a bar portion and at least one longitudinal fixing portion located at the midpoint of the bar portion. The horizontal fixing portions of the two fixing screws are fastened respectively with both ends of the bar portion of the fixaton crossbar by means of a plurality of fasteners. The threaded portion and the horizontal fixing portion of the fixing screw form an angle ranging between 3 degrees and 30 degrees. The two fixing screws are fastened onto the same vertebra such that they are opposite to each other.

Abstract: A spinal clamping device includes a clamping member provided with a clamping portion and a connecting portion, a clamping adjusting member provided with a clamping portion and a connection portion, a distance adjusting cord of multiple strands, and a cord restraining member. The connecting portions of the clamping member and the clamping adjusting member are provided respectively with one or more cord receiving holes. Each of the multiple strands of the distance adjusting cord has one end that is fastened to the cord receiving hole and another end that is fastened with the cord restraining member. Each of the multiple strands passes through or loops the cord receiving hole of the clamping adjusting member for adjsuting the distance between the clamping member and the clamping adjusting member. The multiple strands of the distance adjusting cord are substantially on a same plane and parallel to one another.

Abstract: A spinal clamping device includes a spinal clamping member, a clamping adjusting member, a distance adjusting bar, and a distance adjusting and fastening member. The spinal clamping member has a clamping portion and a connecting portion. The clamping adjusting member has a clamping portion and a connecting portion provided with a rough surface formed on a predetermined portion of a surface thereof. The distance adjusting bar has one end fastened with the connecting portion of the spinal clamping member and another end that is provided with a rough surface formed on a predetermined portion of a surface thereof. The rough surfaces of the clamping adjusting member and the distance adjusting bar are adjustably stacked and fastened by the distance adjusting and fastening member.

Abstract: An intervertebral locking device comprises one spiral elastic body, two bracing mounts and two sets of locking members. The two bracing mounts are fastened respectively to both ends of the spiral elastic body. The two sets of locking members are fastened respectively with the two bracing mounts such that each set of the locking members is anchored in one of the two vertebrae adjacent to a vertebra under treatment. The spiral elastic body and the vertebra under treatment evince similar elastic qualities, i.e. similar deflection characteristics. A plurality of bone grafts affinitive to the vertebra under treatment are deposited in the chambers of the spiral elastic body and in the spaces surrounding the spiral elastic body.

Abstract: An intervertebral fusing device having a spring body portion interconnecting a first spiral ring mount and a second spiral ring mount. Each spiral ring mount having a spiralling projection on the outer surface. The spring body portion is defined by a plurality of spiral loops. The plurality of spiral loops and spiralling projection of the spiral ring mounts have a constant pitch. A mount cover and a head member are threaded into an internally threaded portion of a respective spiral ring mount thereby forming a chamber in which bone grafts affinitive to the cells and tissues of a vertebra may be housed. The spring body portion is similar in elasticity to the vertebra.

Abstract: An external fixation device for a fractured bone comprises a fixation rod, a connection member, and a plurality of fixing screws. The connection member has one end serving as a clamp to hold firmly the fixation rod and another end serving as a screw receiving mount provided with a plurality of clamping holes which are neither aligned nor parallel to one another. The fixing screws are fastened respectively onto a bone through the clamping holes in a specified angle.

Abstract: A vertebral locking and retrieving system includes a plurality of horizontal locking and retrieving member sets, a plurality of vertebral locking members, a plurality of connecting member sets, and a central locking rod. Each of the horizontal locking and retrieving member sets is composed of a locking rod retainer and two locking member retainers fastened respectively to two opposite sides of the locking rod retainer. Each of the vertebral locking members has one end for locking a vertebra and another end fastened to one of the locking member retainers. The connecting member sets are used in fastening the vertebral locking members to the locking member retainers and in fastening the central locking rod to the locking rod retainer. A horizontal locking of a vertebra is achieved by the horizontal locking and retrieving member sets while a longitudinal locking of the vertebra is attained by the central locking rod connecting the horizontal locking and retrieving member sets.

Abstract: A clamping device for a vertebral locking rod includes an outer clamping member and an inner clamping member. The outer clamping member has a U-shaped clamping mount provided respectively in both inner sides thereof with a fitting member, with at least one of the two inner sides having a retainer. The inner clamping member has an arcuate fastening mount and a fastening block provided respectively in both outer sides thereof with a fitting member engageable with the fitting member of the outer clamping member. The arcuate fastening mount and the U-shaped clamping mount are joined together to form a retaining hole to hold therein a vertebral locking rod. The fastening block is provided in at least one of the two outer sides thereof with a retainer engageable with the retainer of the U-shaped clamping mount of the outer clamping member so as to prevent the fastening block from sliding in the U-shaped clamping mount.

Abstract: An artificial acetabular joint replacing device includes an acetabular joint replacing body, an acetabular cap, a fastening piece, one or more fastening screws, and one or more fastening cords. The acetabular joint replacing body is dimensioned to fit over a premended portion of a femur and provided in the bottom portion thereof with at least one cord hole and one or more fastening holes. The fastening piece is provided with one or more fastening holes and cord holes. The fastening screws are used to fasten together the acetabular joint replacing body, the femur and the fastening piece by engaging the fastening holes of the acetabular joint replacing body and the fastening piece, and predrilled fastening holes of the femur. The fastening cords are used to reinforce the fastening of the acetabular joint replacing body, the femur and the fastening piece by passing through the cord holes of the acetabular joint replacing body and the fastening piece.

Abstract: An intervertebral locking device includes a bottom base, a bracing member, a top base, and at least one adjusting arm. The bottom base is provided on the upper surface thereof with a fastening member and on the lower surface thereof with one or more spikes. The bracing member has a bottom united with the fastening member attached to the upper surface of the bottom base. The top base is provided on the lower surface thereof with a fastening member and on the upper surface thereof with one or more spikes. The adjusting arm has one end serving as an adjusting end and another end acting as a locking end. The adjusting end of the adjusting arm is fastened to the bottom base or the top base in such a manner that the adjusting end is first adjusted to be in an appropriate position and is then fixed securely at that position. The locking end of the adjusting arm is fixed appropriately on one of the two vertebrae adjacent to a deformed or diseased vertebra under treatment.

Abstract: A side locking system is rotatable in all directions for use in a spinal surgery. Such a system comprises a side locking member, a spherical liner, and a fastening element. The side locking member is composed of a side locking block and a rotatable locking block. The side locking block has a through hole for receiving and holding a spinal locking rod and has a fastening slit substantially perpendicular to the axis of the through hole. The rotatable locking block has a rotatable receiving mount of spherical construction. The spherical liner is mounted in the rotatable locking block and provided with a hollow portion so dimensioned as to receive and hold a spinal pin. The fastening element is capable of tightening the fastening slit of the side locking block so as to bring about a compression of the spherical liner, which in turn causes the through hole of the side locking block to clamp the spinal locking rod.

Abstract: A dual-tier spinal clamp locking and retrieving system comprises a slotted clamp member, a tongued clamp member, and a clamp adjusting device. The slotted clamp member is composed of a hooked portion to hold a vertebra intended to be locked, a connecting portion, and a locking block having a through hole. The connecting portion or the locking block has one or more locking slots. The tongued clamp member is composed of a hooked portion to-hold another vertebra intended to be locked, a connecting portion, and a tongue having thereon a locking block with a through hole. The tongue is dimensioned to fit into the locking slot of the slotted clamp member. The clamp adjusting device holds together the slotted clamp member and the tongued clamp member to effect a first tier locking mechanism. The tongue of the tongued clamp member is inserted into and held in the locking slot of the slotted clamp member so as to bring about a second tier locking mechanism.

Abstract: A dual-tier spinal locking and retrieving system comprises a plurality of spinal pins, one or more lower auxiliary locking members, a plurality of connecting members, one or more upper auxiliary locking members, and a plurality of locking devices. Each of the spinal pins is provided with a fastening portion, a stop portion and a first receiving portion. The lower auxiliary locking members are used to brace or tighten the first receiving portion of the spinal pin so as to establish a lower auxiliary locking framework. The connecting member is provided with a second receiving portion and a third receiving portion. Ther upper auxiliary locking members are used to brace or tighten the third receiving portion of the connecting member so as to established an upper auxiliary locking framework. The locking devices are used to construct a dual-tier spinal locking and retrieving system for which a percutaneous instrumentation is provided.

Abstract: A vertebral locking and retrieving system comprising a locking pin, a connector, a locking component, a coupling component, a remedial component, and securing components is disclosed. The locking pin includes a threaded end and a locking end. The threaded end is adapted to be secured to a normal, healthy vertebra. The connector comprises a through hole and an integrally formed cubic portion at one lateral side of the through hole. The cubic portion has a locking aperture adapted to non-rotatably accept the locking end of the locking pin. The locking component is engaged with the locking end of the locking pin after it has passed through the locking aperture of the cubic portion to hold the connector onto the locking pin. The coupling component is threadably connected one end thereof to the through hole of the connector.

Abstract: A vertebral locking and retrieving system comprising a locking pin, a connector, a locking component, a coupling component, a remedial component, and securing components is disclosed. The locking pin includes a threaded end and a locking end. The threaded end is adapted to be secured to a normal, healthy vertebra. The connector comprises an internally threaded bore at one end and an integrally formed plate at the other end thereof. The plate has a locking aperture adapted to non-rotatably accept the locking end of the locking pin. The locking component is engaged with the locking end of the locking pin after it has passed through the locking aperture of the plate to hold the connector onto the locking pin. The coupling component is connected one end thereof to the internally threaded bore of the connector.

Abstract: A vertebral locking and retrieving system comprises at least one locking pin assembly, a coupling component, a remedial component, and a plurality of securing components. The locking pin assembly is composed of a threaded pin, a receiving mount and a bolt for fastening the threaded pin and the receivng mount together wherein the threaded pin and the receiving mount form therebetween a specified angle. The coupling component is connected at one end thereof to the receiving mount of the locking pin assembly. The remedial component is secured at one end thereof to the deformed vertebra or to the upper vertebra or the lower vertebra immediately adjacent to the deformed vertebra and is connected at another end thereof to another end of the coupling component. The securing components are provided to fixedly fasten the locking pin assembly and the remedial component with the coupling component.

Abstract: A vertebral locking and retrieving system comprises at least one lock pin, a coupling component, a remedial component, and a plurality of locking components. The lock pin is composed of a threaded end portion and a receiving mount, which form therebetween a specified angle. The coupling component is connected at one end thereof to the receiving mount of the lock pin. The remedial component is secured at one end thereof to the deformed vertebra or to the upper vertebra or the lower vertebra immediately adjacent to the deformed vertebra and is connected at another end thereof to another end of the coupling component. The locking components are provided to fixedly fasten the lock pin and the remedial component with the coupling component.