A kind of femur intertrochanteric fracture hip prosthesis systemTechnical field
The invention belongs to Design for Medical Device technical field, especially relate to a kind of femur intertrochanteric fracture hip and closeJoint prosthesis system.
Background technology
All the time, intertrochanteric fracture of the femur is old people's common injury.Often have after intertrochanteric fracture of the femurHinder the generation of limb cripetura companion's coxa vara phenomenon, and elderly patient long-term bed causes complication more, disabilityRate and medical history rate are higher.Therefore, a set of specialty femoral bone tuberosity for intertrochanteric fracture of the femur patient is designedFracture hip prosthesis system is the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The problem to be solved in the present invention is to provide and a kind of guarantees the stability in joint, practicality and ruggedness,Retaining the bone amount of near end of thighbone, post-operative recovery is fast, meets the femur intertrochanteric fracture hip of differentiated demand as far as possibleArticular prosthesis system.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of femur intertrochanteric fracture hipArticular prosthesis system, including near end of thighbone tuberosity binding titanium net, near end of thighbone part replacement prosthesis and femurNear-end replacement prosthesis, described near end of thighbone tuberosity binding titanium net is semicircular plate-form structure, with the circle of femurShape profile matches, the near-end binding when near end of thighbone tuberosity rule is fractured；
Described near end of thighbone part replacement prosthesis includes tuberosity prosthese and the shank body being connected, described tuberosity prostheseOn be provided with titanium silk binding hole, described tuberosity prosthese lower end is provided with translot under tuberosity；Binding track is radiallyBeing arranged on tuberosity prosthese, this binding track is positioned at below titanium silk binding hole, is connected with titanium silk binding hole；Described shank body designs for Double-conical-surface, and this shank body has been radially arranged relief groove；
Described near end of thighbone replacement prosthesis is split-type structural, including tuberosity part, coupling part and shank bodyPart, upper end, coupling part stretches to tuberosity member base end, and the two fastens, and shank body part upper end is stretched intoTo bottom, coupling part, the two fastens, and described tuberosity part, coupling part and shank body part use anti-The tapering rotated connects.
Described shank body uses titanium alloy or stainless steel.
Described shank body pulp cavity part is polished design.
In described tuberosity part, near-end greater trochanter side is provided with binding hole.
Described near end of thighbone tuberosity binding titanium net, near end of thighbone part replacement prosthesis and near end of thighbone substitute vacationBody is provided with plurality of specifications.
Owing to using technique scheme, (1) near end of thighbone tuberosity binding titanium net can be used near end of thighboneNear-end binding during tuberosity rule fracture；(2) near end of thighbone part replacement prosthesis, near-end alternative because ofComminuted fracture and the femur intertrochanteric fracture of binding cannot be realized, wherein rational tuberosity prosthetic designs, canThe osteotomy amount minimized；The design of translot under tuberosity, can effectively grasp top rake；Titanium silk binding holeDesign, it is achieved bind to greatest extent, recovers ligament function；The design of binding track, it is achieved titanium silk existsTrack is bound, it is to avoid muscle injury tissue；The design of Double-conical-surface, can have good anti-rotation performance；The design of this prosthese polytypic, provides optimum solution to clinician；Use titanium alloy and stainlessTwo kinds of materials of steel, can meet the needs of more clinic；Pulp cavity part polishing design, it is possible to decrease prosthese andFriction between cement, reduces the generation of chip；The design of relief groove, can prevent the generation of postoperative thromboembolism；(3) near end of thighbone replacement prosthesis is split type, can be combined, and the connected mode of each several part uses tapering evenConnecing, anti-rotation is effective；(4) offer of present system solves bone between femur intertrochanteric fracture and tuberosityThe surgical prosthesis scheme of folding, while early postoperation Go to ground activity, it can be ensured that the stability in joint, practicalityProperty and ruggedness；Near end of thighbone tuberosity binding titanium net, near end of thighbone part replacement prosthesis and near end of thighbone replaceIt is provided with plurality of specifications for prosthese, the demand of differentiation can be met.
The invention has the beneficial effects as follows: have and guarantee the stability in joint, practicality and ruggedness, as far as possibleRetaining the bone amount of near end of thighbone, post-operative recovery is fast, the advantage meeting differentiated demand.
Accompanying drawing explanation
Below with reference to accompanying drawing and combine example and be specifically described the present invention, advantages of the present invention and realizationMode will become apparent from, and wherein content shown in accompanying drawing is only used for explanation of the present invention, and not structureThe restriction gone up in all senses of the present invention in pairs, in the accompanying drawings:
The structural representation of Fig. 1 different size of the present invention near end of thighbone tuberosity binding titanium net
The structural representation of Fig. 2 different size of the present invention near end of thighbone part replacement prosthesis
The structural representation of Fig. 3 different size of the present invention near end of thighbone replacement prosthesis
In figure:
1, near end of thighbone tuberosity binding titanium 2, near end of thighbone part replacement 3, near end of thighbone substitute vacation
Net prosthese body
21, tuberosity prosthese 22, shank body 31, tuberosity part
32, coupling part 33, shank body part 211, titanium silk binding hole
212, translot 213, binding track 214, relief groove under tuberosity
Detailed description of the invention
As shown in Figure 1 to Figure 3, one femur intertrochanteric fracture hip prosthesis system of the present invention, including stockProximal bone tuberosity binding titanium net 1, near end of thighbone part replacement prosthesis 2 and near end of thighbone replacement prosthesis 3,Described near end of thighbone tuberosity binding titanium net 1 is semicircular plate-form structure, matches with the circular profile of femur,Near-end binding when near end of thighbone tuberosity rule is fractured；Described near end of thighbone part replacement prosthesis 2 is wrappedInclude connected tuberosity prosthese 21 and shank body 22, described tuberosity prosthese 21 be provided with titanium silk binding hole 211,Described tuberosity prosthese 21 lower end is provided with translot 212 under tuberosity；Binding track 213 is radially disposed at tuberosityOn prosthese 21, this binding track 213 is positioned at below titanium silk binding hole 211, binds hole 211 with titanium silkIt is connected；Described shank body 22 designs for Double-conical-surface, and this shank body 22 has been radially arranged relief groove 214；Described near end of thighbone replacement prosthesis 3 is split-type structural, including tuberosity part 31, coupling part 32 andShank body part 33, upper end, coupling part 32 stretches to tuberosity part 31 bottom, and the two fastens, shank bodyPart 33 upper end stretches to bottom, coupling part 32, and the two fastens, described tuberosity part 31, connectionPart 32 and shank body part 33 use anti-rotational tapering to connect；Described shank body 22 use titanium alloy orStainless steel；Described shank body 22 pulp cavity part is polished design；Near-end in described tuberosity part 31Greater trochanter side is provided with binding hole；Described near end of thighbone tuberosity binding titanium net 1, near end of thighbone part substituteProsthese 2 and near end of thighbone replacement prosthesis 3 are provided with plurality of specifications.
(1) near end of thighbone tuberosity binding titanium net 1 can be used for near-end when near end of thighbone tuberosity rule is fracturedBinding；(2) near end of thighbone part replacement prosthesis 2, near-end is alternative cannot be realized because of comminuted fractureThe femur intertrochanteric fracture of binding, wherein reasonably tuberosity prosthese 21 designs, and can reach the osteotomy amount of minimum；The design of translot 212 under tuberosity, can effectively grasp top rake；The design in titanium silk binding hole 211, it is achievedBind to greatest extent, recover ligament function；The design of binding track 213, it is achieved titanium silk is in trackBinding, it is to avoid muscle injury tissue；The design of Double-conical-surface, can have good anti-rotation performance；This prostheseThe design of polytypic, provides optimum solution to clinician；Use titanium alloy and rustless steel two kindsMaterial, can meet the needs of more clinic；The polishing design of pulp cavity part, it is possible to decrease prosthese and cement itBetween friction, reduce chip generation；The design of relief groove 214, can prevent the generation of postoperative thromboembolism；(3) near end of thighbone replacement prosthesis 3 is split type, and design be can be combined, and the connected mode of each several part usesTapering connects, and anti-rotation is effective；(4) offer of present system solves femur intertrochanteric fracture and thickThe surgical prosthesis scheme of grand fracture, while early postoperation Go to ground activity, it can be ensured that the stability in joint,Practicality and ruggedness；Near end of thighbone tuberosity binding titanium net 1, near end of thighbone part replacement prosthesis 2 and stockProximal bone replacement prosthesis 3 is provided with plurality of specifications, can meet the demand of differentiation.
Above embodiments of the invention are described in detail, but described content has been only the preferable of the present inventionEmbodiment, it is impossible to be considered the practical range for limiting the present invention.All according to the scope of the invention made equalDeng change and improvement etc., within all should still belonging to this patent covering scope.