Intraosteal retainer

FIELD: surgery, in particular, traumatology and orthopedics.

SUBSTANCE: intraosteal retainer has pin with cavity and two slots at the end of pin, and two wires positioned in pin for further accommodation in slots. Distal ends of two wires are equipped with round loops. Intraosteal retainer is provided with compressing unit comprising spring, supporting plate with wire receiving openings, and nuts. Proximal ends of wires are provided with thread for nuts. Proximal ends of wires are disposed in spring and supporting plate. Cavity in pin is formed opened along the entire length. Through slots of 0.2x1 cm size are provided at pin ends. Wires are 40-50 cm long and have diameter of 0.2-0.3 cm.

EFFECT: increased efficiency by reduced injury during operation owing to moderate dosed compression.

6 dwg

 

The invention relates to surgery, in particular for traumatology and orthopedics, and is intended for the production intramedullary compression osteosynthesis.

The closest analogue of (1) consists of a pin with open throughout the length of the cavity and two slots at either end, set in the pin with the possibility of placement in the slots of the two spokes, one end of which is made with round loops.

A disadvantage of this device is the invasiveness of the surgery.

To ensure the technical result - the reduction of trauma surgery at the expense of achieving moderate dosed compression - proposed intraosseous the latch.

Intraosseous the latch includes a pin with a cavity and two slots at either end, set in the pin with the possibility of placement in the slots of the two spokes that are at the distal ends are made with round loops. Intraosseous latch equipped compressicauda node in the form of a spring, base plate with holes for spokes and nuts. Spokes are made at the proximal end with a threaded nut. The proximal ends of the spokes are placed in the spring and the base plate. The cavity in the pin is made open along the entire length. The pin ends are made through the slots with a size of 0.2×1 see the Needles have a length of 40-50 cm and a diameter of 0.2-0.3 see

Figure 1 shows intramedullary fixator, total is th; figure 2 - pin latch; 3 - spokes latch; figure 4 - nut retainer; figure 5 - detent spring; 6 - base plate of the latch.

1 - pin, 2 cavity pin, 3, 4 through the slots of the pin 5, 6 - slot on the end of the pin, 7, 8 spokes, 9 - round loop, 10 - spring 11 - mounting plate, 12, 13 - hole spokes and nuts.

The operation of the device.

When closed low oblique fractures of the thigh is cut in the region of the fracture, blunt sever soft tissue, exposing the seat of fracture, the fragments appear in the wound. The removal of the pin is a retrograde fashion. Through Misaki distal femur enter the pin (7, 8) at an angle of 30-40 degrees. The last is directed into the slot (5, 6) dowel pin (1) and is to naturalnoi area. In the distal spokes fixed "all loops" (9), at the proximal end of the pin (1) is placed a compression spring (10) so that the pin (8) on the inside. On spokes (7, 8) is put on the support plate (11) round shape, which has two holes for spokes (7, 8). The compression ratio is created in naturalnoi region nuts (12, 13), is screwed to the threads of the spokes (7, 8). The wound is sutured in layers.

This device can be applied to other fractures of tubular bones. Remove designs is made in the operating room under aseptic conditions.

Applied to the e of the proposed intraosseous latch ensures the conduct of the spokes namyslowski region, compression, strong fixation of bone fragments, and also provided osteoclast bone health. This reduces the invasiveness of the surgery and earlier rehabilitation of patients.

The source of information

1. German patent No. 1054659, And 61 In 17/18, 1985

Intraosseous the latch containing the stud cavity and two slots at either end, set in the pin with the possibility of placement in the slots of the two spokes that are at the distal ends are made with round loops, characterized in that it is equipped compressicauda node in the form of a spring, base plate with holes for spokes and nuts, needles made at the proximal end with a threaded nut, the proximal ends of the spokes are placed in the spring and the base plate, the cavity in the pin is made open along the entire length, the pin ends are made through the slots with a size of 0.2×1 cm, spokes have a length of 40-50 cm and a diameter of 0.2-0.3 see



 

Same patents:

FIELD: medical engineering.

SUBSTANCE: device has hollow cylindrical casing having diametrically arranged slits on one of casing ends and flange on the other end, shank and rest members mounted in the casing with an option to be placed in casing slits and rod with a nick connectable to the shank. The device has additional rod mounted on the shank and rest members with an option to be placed in additional casing slits. The shank is rotatable. Both rods are threaded and have conic guide members for pushing the rest members. The conic guide members are mounted with their greater bases meeting each other. The rest members mounted on bushings having internal thread movable along rod. The rest members are expandable in moving into longitudinal slits in the casing cutting in into bone tissue with their sharp ends, and compressible in moving the bushings along the rod towards casing end so that sharp ends of the rest members go beyond the external casing surface.

EFFECT: high reliability in fixing fractured bone fragments.

2 dwg

FIELD: medicine; medical engineering.

SUBSTANCE: device has two rings joined to each other with three rods by means of detachable connection. Strip, having holes, is fixed on one of the rings for placing in them removable guiding bushing receiving drill. Method involves detecting hole for applying blocking screw to an intramedullary rod, drilling and superimposing over extremity in the assumed blockage causing the rings to be arranged on external and internal extremity side and the removable guiding bushing is placed on the side the opening is formed. Drilling point is determined by moving device in carrying out X-ray control in frame-by-frame mode of optoelectronic transducer operation. A guiding bushing position is determined that bushing opening projects over intramedullary rod hole. The rings are rigidly fixed in this position on the extremity.

EFFECT: enhanced effectiveness in reducing X-ray radiation dose absorbed by physician and patient.

6 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: method involves carrying out closed fractured long tubular bone fragments reposition. Cannulated rod of known length is introduced into medullary canal along guiding wire. Canals for setting locking screws with drill using prepared distal target guidance unit. Drill passage through cannulated rod working end openings is controlled with guiding wire introduced into rod canal. Canal directions matching rod working end openings, locking screws are to be introduced. Locking screws passage through cannulated rod working end openings is controlled with guiding wire introduced into rod canal. Deformation occurring when introducing cannulated rod working end by means of wire introduced into the nearest cortical bone layer opening and guiding wire introduced into rod canal, correct direction of canals for setting locking screws is determined. The canals for setting locking screws are built along wire direction with drill and locking screws are introduced, respectively. Drill and locking screws passage control is carried out by means of guiding wire introduced into the rod canal.

EFFECT: reduced number of X-ray examination procedures; accelerated operation process.

22 dwg

The invention relates to medicine, namely to traumatology

The invention relates to medicine and can be used in orthopedics and traumatology for the quality of fixation of the radial bone

The invention relates to medicine, namely to traumatology and orthopedics

Compressible screw // 2225180
The invention relates to medicine, namely to traumatology and orthopedics, and can be used for osteosynthesis

The invention relates to medicine, namely to traumatology, orthopedics, and can be used as a treatment for intramedullary osteosynthesis of fractures, necroshine, false joints and deformities

The invention relates to medicine and can be used in intramedullary osteosynthesis of long bones for locking intramedullary rods (nails)

The invention relates to medicine, namely to traumatology and orthopedics

FIELD: medical engineering.

SUBSTANCE: device has wire clamp manufactured from material possessing thermomechanical shape memory properties. The clamp has irregularly curved supraosseous member and straight pedicles fixable in bone and inclined toward each other. The irregularly curved supraosseous member has rectangular back and two Ω-shaped loops arranged on both sides with an area forming central cross-pieces of straight-line back. End cross-pieces of the straight-line back are mated with corresponding pedicles by means of arc-shaped areas embracing bone from both sides relative to the straight-line back. Each of planes formed by corresponding pedicle and mating arc-shaped area is arranged in perpendicular to the straight-line back. Projection of each Ω-shaped loop over the nearest of said planes is arc-shaped, the arc being arranged as arc symmetrically conjugated to an arc of arc-shaped area relative to corresponding end cross-piece.

EFFECT: constant compression of fractured bone fragments; high fixation reliability.

2 cl, 3 dwg, 2 tbl

FIELD: medical engineering.

SUBSTANCE: device has plate with holes and fork-like fixing unit having two teeth. The teeth are arc-shaped along longitudinal relief of frontal surface of external clavicle one-third. The teeth divergent in planes parallel to each other for arrange external fractured bone fragment. Longitudinal part of the plate is S-shaped.

EFFECT: enhanced effectiveness of treatment; high multisplitter fracture fixation reliability.

4 dwg

FIELD: medical engineering.

SUBSTANCE: device has flexible elastic wire bent in two and having sharp tip rods arranged in parallel to each other. Rod ends shear planes are produced on internal surfaces facing each other at equal angles relative to rod axis. Angle between two bisecting lines drawn between cut plane and internal surface of each rod does not exceed maximum permissible wire divergence angle in bone.

EFFECT: enhanced effectiveness of surgical treatment; reduced risk of traumatic complications.

2 cl, 4 dwg

FIELD: medical engineering.

SUBSTANCE: device has plate manufactured form material possessing shape memory properties having oppositely bent leaflets and clamps on one of lateral sides. The plate is concave in middle part and is not wider as cortical bone layer thickness.

EFFECT: enhanced effectiveness of supporting bone fragments compression; high strength of osteosynthesis; accelerated coalescence; easiness in withdrawing the device from bone.

2 cl, 5 dwg

FIELD: medical engineering.

SUBSTANCE: device has part fixed on bone and intraosseous part parting from it at an angle of 90є and having protrusion and slit. The on-bone part is longitudinal and narrow and has transverse protrusions having holes for receiving fastening members, and the narrow part has longitudinal rectangular area having rounded protrusion and slit 0.5-1.0 cm far from the protrusion. The slit originates on the lower edge in perpendicular to the longitudinal device axis occupying half of height of longitudinal area of the intraosseous part.

EFFECT: improved functional properties; accelerated treatment course; stable fixation of fractured bone fragments.

3 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: method involves carrying out reduction and fixation of fractured bone fragments. At least two adjustable length rods are used. The rods have end heads and openings for making attachment to mandible. One of the heads is freely rotatable relative to the rod and the other one is movable along longitudinal rod axis. Reduction and fixation is made in positioned centric jaw relation. The rods are set between the mandible and maxilla to the right and left of the center at the level of failed second incisor and second bicuspid teeth.

EFFECT: reduced risk of traumatic complications; reduced periosteum detachment.

3 cl, 3 dwg

The invention relates to veterinary medicine and can be applied for the selection of pins with intramedullary osteosynthesis of bones peripheral skeleton cats

The invention relates to medicine and can be used in traumatology and orthopedics in the treatment of intra-articular fractures of the calcaneus

The invention relates to medicine, namely to traumatology and orthopedics

Compressible screw // 2225180
The invention relates to medicine, namely to traumatology and orthopedics, and can be used for osteosynthesis

FIELD: medicine.

SUBSTANCE: method involves carrying out reduction and fixation of fractured bone fragments. At least two adjustable length rods are used. The rods have end heads and openings for making attachment to mandible. One of the heads is freely rotatable relative to the rod and the other one is movable along longitudinal rod axis. Reduction and fixation is made in positioned centric jaw relation. The rods are set between the mandible and maxilla to the right and left of the center at the level of failed second incisor and second bicuspid teeth.

EFFECT: reduced risk of traumatic complications; reduced periosteum detachment.

3 cl, 3 dwg

Up!