CN202943807U - Hip joint spacer die - Google Patents
Hip joint spacer die Download PDFInfo
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- CN202943807U CN202943807U CN 201220366832 CN201220366832U CN202943807U CN 202943807 U CN202943807 U CN 202943807U CN 201220366832 CN201220366832 CN 201220366832 CN 201220366832 U CN201220366832 U CN 201220366832U CN 202943807 U CN202943807 U CN 202943807U
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Abstract
The utility model discloses a hip joint spacer die which comprises an upper die and a lower die, wherein the upper die comprises at least two caput femoris part upper dies for a caput femoris part upper cavity with different sizes and at least two femoral myelocavity part upper dies for a femoral myelocavity part upper cavity with different sizes; any caput femoris part upper die and any femoral myelocavity part upper die can be freely combined; the lower die comprises at least two caput femoris part lower dies for a caput femoris part lower cavity with different sizes and at least two femoral myelocavity part lower dies for a femoral myelocavity part lower cavity with different sizes which are matched with each other; any caput femoris part lower die and any femoral myelocavity part lower die can be freely combined; and the upper die and the lower die are compounded to form a hip joint spacer cavity. The hip joint spacer with different caput femoris part sizes and different femoral myelocavity part sizes can be flexibly and conveniently manufactured, so that the requirements of patients with different caput femoris part sizes and femoral myelocavity part sizes are accurately met.
Description
Technical field
The utility model relates to a kind of hip joint occupying device mould, is used for the making that hip joint infects hip joint occupying device interval.
Background technology
Infection with Tunnel after Total Hip Arthroplasty is a kind of catastrophic complication, and its treatment is a kind of very large challenge for the orthopedist.The second phase revision procedure is considered to treat " goldstandard " of Infection with Tunnel after Total Hip Arthroplasty: the artificial hip prosthesis is taken out, and thoroughly debridement is performed the operation after infection control more for the second time, implants new artificial hip prosthesis.During infection control, use the hip joint occupying device, can play and keep the hip joint tensity, prevent hip joint surrounding soft tissue's contracture and affect the second stage of revision procedure effect, antibiotic that again can local supply high concentration, infection control.Therefore the hip joint occupying device has become the main flow therapeutic modality for the treatment of infected hip arthroplasty.About the development of hip joint occupying device, experienced the irrigation type metal occupying device, the manual occupying device of pinching mold forming, utilize swager to carry out middle making occupying device in operation, or the occupying device of commodity in use etc.
Irrigation type metal occupying device needs to pour into antibiotic termly in occupying device, but very fast because granulation tissue is grown in the space of occupying device, hindered the effect of antibiotic to some part, this occupying device is metal material simultaneously, to metallic foreign body of patient Lai Shuoshi, the infection and recurrence rate is relatively high; Simultaneously irrigation type occupying device be owing to will regularly pour into antibiotic in occupying device, complex operation, and patient's psychic gratification degree is not high yet, therefore is eliminated gradually.
Pinch by hand the occupying device of mold forming, utilize bone cement and antibiotic compatibility by a certain percentage, kneading becomes the occupying device with the similar shape of patient's sclerotin, can not be well and the match of patient's sclerotin because of its articular surface shape, easily cause wearing and tearing occur between occupying device and acetabular bone sclerotin and cause further bone loss.And early stage craft is pinched the occupying device of mold forming due to insufficient strength, easily causes the bone cement spacer fracture; Afterwards, add steinman pin or metal inside at the bone cement center, and solved to a certain extent strength problem, but the joint wear problem is still outstanding.
Utilize swager directly to make occupying device in operation and solved to a certain extent the articular surface problem of rough, also more can meet in shape patient's sclerotin form, but existing swager is the swager of femoral head parts and femoral shaft parts one, model is alternative few, and the situation that exists femoral head parts model and femoral shaft number of element types not to be complementary.Swager mainly is divided into two kinds according to the material difference, and a kind of is metal mold, the recycling of can repeatedly sterilizing, but have demoulding hard problem, the demoulding with the metal stamping and pressing device after the bone cement sclerosis is difficult, and demould time is long, increase operating time, can increase the infection and recurrence rate to a certain extent; And existing metal mold swager is the hinge shape, hand mo(u)ld, effort and easily because pressure produces bubble not, bubble partly may cause the articular surface segmental defect.Another kind is mould of plastics, it is also the commercial mould of plastics of making in advance, through special modality, utilize Bone cement gun will be with antibiotic bone cement to be injected in mould of plastics, after the bone cement sclerosis, mould of plastics is cut off along specific direction, just the occupying device of moulding can be taken out and use, this kind plastics occupying device mould is expendable consumed product, and is disposable, not reproducible utilization, thereby quantity in stock is large.Commercial occupying device has reduced directly to be made the time of occupying device in the art, accelerated the operation process, but this occupying device expense is high, increase the patient burden, and quantity in stock is large, needs aseptic packaging, has term of validity problem.
The utility model content
For problems of the prior art, the hip joint occupying device mould that the purpose of this utility model is to provide the femoral bone cavitas medullaris parts of a kind of femoral head parts that can realize different size and different size freely to mate.
For achieving the above object, the technical solution of the utility model is as follows:
Hip joint occupying device mould of the present utility model, comprise upper die and lower die, wherein, described patrix comprises the femoral head parts patrix of at least two femoral head parts upper impression with different size and the femoral bone cavitas medullaris parts patrix of the femoral bone cavitas medullaris parts upper impression that at least two have different size, wherein on any described femoral head parts patrix and any described femoral bone cavitas medullaris parts after die combination, form hip joint occupying device upper impression; Described counterdie comprises the femoral head parts counterdie of at least two femoral head parts lower impressions with different size and the femoral bone cavitas medullaris parts counterdie of the femoral bone cavitas medullaris parts lower impressions that at least two have different size, wherein under any described femoral head parts counterdie and any described femoral bone cavitas medullaris parts after die combination, form hip joint occupying device lower impressions; Described hip joint occupying device upper impression and described hip joint occupying device lower impressions are formed for the hip joint occupying device die cavity of moulding hip joint occupying device jointly when matched moulds.
Described femoral head parts upper impression and femoral head parts lower impressions are that mirror image is symmetrical or non-mirror image is symmetrical, and described femoral bone cavitas medullaris parts upper impression and femoral bone cavitas medullaris parts lower impressions are that mirror image is symmetrical or non-mirror image is symmetrical.
Wherein, described patrix also comprises the upper metal-coating with epicoele, can removably be assembled in described epicoele after die combination on femoral head parts patrix and femoral bone cavitas medullaris parts; Described counterdie also comprises the lower metal-coating of cavity of resorption, can removably be assembled in described cavity of resorption after die combination under femoral head parts counterdie and femoral bone cavitas medullaris parts.
Described femoral head parts patrix, described femoral bone cavitas medullaris parts patrix, described femoral head parts counterdie and described femoral bone cavitas medullaris parts counterdie are made by polytetrafluoroethylmaterial material.
Described upper metal-coating is provided with the patrix opening of coming in and going out for described femoral bone cavitas medullaris parts patrix, described patrix opening two opposite sides respectively have a patrix gathering sill, described femoral bone cavitas medullaris parts patrix both sides are respectively equipped with a patrix guide rail with described patrix gathering sill cooperating, and described upper metal-coating is provided with the patrix locking member for the described patrix opening of shutoff.
Described upper metal-coating is provided with the patrix tapped through hole, is combined with the patrix threaded mandrel in described patrix tapped through hole, and described patrix tapped through hole and described patrix locking member are positioned at two opposed ends of described upper metal-coating.
Described lower metal-coating is provided with the lower die open of coming in and going out for described femoral bone cavitas medullaris parts counterdie, described lower die open two opposite sides respectively have a counterdie gathering sill, described femoral bone cavitas medullaris parts counterdie both sides are respectively equipped with a counterdie guide rail with described counterdie gathering sill cooperating, and described lower metal-coating is provided with the counterdie locking member for the described lower die open of shutoff.
Described lower metal-coating is provided with the counterdie tapped through hole, is combined with the counterdie threaded mandrel in described counterdie tapped through hole, and described counterdie tapped through hole and described counterdie locking member are positioned at two opposed ends of described lower metal-coating.
One in described patrix or counterdie is provided with at least two matched moulds leads, and another in described patrix or described counterdie is provided with at least two matched moulds pilot holes with at least two described matched moulds lead cooperatings.
One in described upper metal-coating or lower metal-coating is provided with at least two matched moulds leads, and another in described upper metal-coating or lower metal-coating is provided with at least two matched moulds pilot holes with at least two described matched moulds lead cooperatings.
Described at least two matched moulds leads and described at least two matched moulds pilot holes are separately positioned on described upper metal-coating and lower metal-coating.
Convex platform and described occupying device lower impressions edge that described hip joint occupying device upper impression edge is provided with downward protrusion are provided with lower convex platform protruding upward, and when described patrix and described counterdie matched moulds, described convex platform docks with described lower convex platform.
Described upper metal-coating is higher than described femoral head parts patrix and described femoral bone cavitas medullaris parts patrix, and the height that exceeds equals the height of described convex platform; Described lower metal-coating is higher than described femoral head parts counterdie and described femoral bone cavitas medullaris parts counterdie, and the height that exceeds equals the height of described lower convex platform; Perhaps described upper metal-coating is higher than described femoral head parts patrix and described femoral bone cavitas medullaris parts patrix, and the height that exceeds equals the height sum of described convex platform and described lower convex platform; Perhaps described lower metal-coating is higher than described femoral head parts counterdie and described femoral bone cavitas medullaris parts counterdie, and the height that exceeds equals the height sum of the height of described lower convex platform and described convex platform so that described upper metal-coating and described lower metal-coating close contact after described patrix and described counterdie matched moulds.
Described hip joint occupying device mould also comprises reinforcement, and described reinforcement is arranged in described femoral head parts upper impression and described femoral bone cavitas medullaris parts upper impression, perhaps is arranged in described femoral head parts lower impressions and described femoral bone cavitas medullaris parts lower impressions.
As shown from the above technical solution, hip joint occupying device mould of the present utility model has following advantage and good effect: the utility model is the assembly type setting, any two in a plurality of femoral head parts patrixes and a plurality of femoral bone cavitas medullaris parts patrix can be made up mutually, and because a plurality of femoral head parts upper impression sizes are different, a plurality of femoral bone cavitas medullaris parts upper impression sizes are different, so can form the patrix of the hip joint occupying device upper impression with different size; In like manner, any two in a plurality of femoral head parts counterdies and a plurality of femoral bone cavitas medullaris parts counterdie can mutually make up and form the counterdie of the hip joint occupying device lower impressions with different size; Therefore, in hip joint occupying device mould of the present utility model, by selecting the different upper and lower mould of the femoral head parts femoral bone cavitas medullaris parts upper and lower modules different with the upper and lower cavity dimension of femoral bone cavitas medullaris parts of the upper and lower cavity dimension of femoral head parts to join, just can make the hip joint occupying device mould with different occupying device cavity dimensions.Therefore, use hip joint occupying device mould of the present utility model can produce flexibly, easily various different femoral head parts sizes and different femoral bone cavitas medullaris part dimension hip joint occupying device, accurately to satisfy the patient demand of different femoral head sizes and femoral bone cavitas medullaris size.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the stereo decomposing structural representation of the utility model hip joint occupying device mould;
Fig. 2 is the perspective view after the assembling of the utility model hip joint occupying device mould;
Fig. 3 A is the structural representation of the upper metal-coating in hip joint occupying device mould of the present utility model;
Fig. 3 B is the structural representation of the lower metal-coating in hip joint occupying device mould of the present utility model;
Fig. 4 A is the structural representation that femoral head parts patrix 12 in hip joint occupying device mould of the present utility model and femoral bone cavitas medullaris parts patrix 13 are combined;
Fig. 4 B is the structural representation that femoral head parts counterdie in hip joint occupying device mould of the present utility model and femoral bone cavitas medullaris parts counterdie are combined;
Fig. 5 A is the structural representation that femoral head parts patrix in hip joint occupying device mould of the present utility model and femoral bone cavitas medullaris parts patrix are combined, and wherein is provided with boss;
Fig. 5 B is the upward view of Fig. 5 A;
Fig. 6 A to Fig. 6 D represents respectively the structural representation of the femoral head parts patrix with each different size femoral head parts upper impression in hip joint occupying device mould of the present utility model;
Fig. 7 A to Fig. 7 D represents respectively the structural representation of the femoral stem parts patrix with each different size femoral stem parts upper impression in hip joint occupying device mould of the present utility model;
Fig. 8 is the structural representation of the reinforcement gusset in hip joint occupying device mould of the present utility model.
The specific embodiment
The exemplary embodiments that embodies the utility model feature ﹠ benefits will be described in detail in the following description.Be understood that the utility model can have various variations on different embodiment, its neither disengaging scope of the present utility model, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the utility model.
As shown in Fig. 1,4A and 4B, hip joint occupying device mould of the present utility model comprises patrix 1 and counterdie 2, and patrix 1 comprises that at least two have the femoral head parts patrix 12 of different size and the femoral bone cavitas medullaris parts patrix 13 that at least two have different size.Counterdie 2 comprises that at least two have the femoral head parts counterdie 22 of different size and the femoral bone cavitas medullaris parts counterdie 23 that at least two have different size.
Femoral head parts patrix 12 has femoral head parts upper impression 121.As shown in Fig. 6 A, Fig. 6 B, Fig. 6 C and Fig. 6 D, the outer contour shape of a plurality of femoral head parts patrixes 12 is identical, but the size of each femoral head parts upper impression 121 is different, to adapt to patient's femoral head of different size.
Femoral bone cavitas medullaris parts patrix 13 has femoral bone cavitas medullaris parts upper impression 131.As shown in Fig. 7 A, Fig. 7 B, Fig. 7 C and Fig. 7 D, the outer contour shape of a plurality of femoral bone cavitas medullaris parts patrixes 13 is identical, but the size of each femoral bone cavitas medullaris parts upper impression 131 is different, to adapt to patient's femoral bone cavitas medullaris of different size.
Femoral head parts patrix 12 is connected with femoral bone cavitas medullaris parts patrix can be joined together to form by any known method of attachment (as buckle connection, screw connection etc.) shape of hip joint occupying device mould upper impression, preferably, can be at femoral head parts patrix 12 and the outer metal-coating 11 that arranges of femoral bone cavitas medullaris parts patrix 13, as shown in Figure 3A, be provided with epicoele 10 in upper metal-coating 11, be used for a femoral head parts patrix 12 of assembling and a femoral bone cavitas medullaris parts patrix 13.
As shown in Fig. 3 A and Fig. 4 A, lucky epicoele 10 shapes with upper metal-coating 11 of shape after a femoral head parts patrix 12 and a femoral bone cavitas medullaris parts patrix 13 make up match, and therefore can assemble along for accommodation in epicoele 10.Be assembled at one end section's close contact of the interior femoral head parts patrix 12 of epicoele 10 and femoral bone cavitas medullaris parts patrix 13, form hip joint occupying device upper impression thereby femoral head parts upper impression 121 and femoral bone cavitas medullaris parts upper impression 131 are interconnected.Because the outer contour shape of a plurality of femoral head parts patrixes 12 is all identical, and the outer contour shape of a plurality of femoral bone cavitas medullaris parts patrixes 13 is also identical, therefore, any one femoral head parts patrix 12 all can be assembled in epicoele 10 after making up with any one femoral bone cavitas medullaris parts patrix 13.
as Fig. 1, shown in Fig. 3 A and Fig. 4 A, for the ease of the demoulding, a patrix opening can be set on upper metal-coating 11, patrix opening two opposite sides respectively have a patrix gathering sill 101, the both sides, the other end of femoral bone cavitas medullaris parts patrix 13 are respectively equipped with a patrix guide rail 132 with patrix gathering sill 101 cooperatings, femoral bone cavitas medullaris parts patrix 13 can be by the upper metal-coating 11 of this patrix opening discrepancy, at this moment be provided with the patrix locking member 40 for shutoff patrix opening on the upper metal-coating 11 of patrix opening part, femoral head parts patrix 12 when preventing pressing mold, femoral bone cavitas medullaris parts patrix 13 moves and misplaces.Patrix locking member 40 can adopt existing any structure, as buckle structure etc.Further, can also be on upper metal-coating 11 end opposite with the patrix opening offer patrix tapped through hole 60(and see Fig. 2), be combined with patrix threaded mandrel 61 in patrix tapped through hole 60.After femoral head parts patrix 12, femoral bone cavitas medullaris parts patrix 13 are assembled to epicoele 10 and lock patrix locking member 40, can also support femoral head parts patrix 12 by being screwed into threaded mandrel 61, femoral head parts patrix 12, femoral bone cavitas medullaris parts patrix 13 are firmly fixed in epicoele 10 more.
Identical with the fit system of patrix, femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23 can be joined together to form by any known method of attachment the shape of hip joint occupying device mould lower impressions, preferably, can be at femoral head parts counterdie 22 and the outer metal-coating 21 that arranges of femoral bone cavitas medullaris parts counterdie 23, as shown in Fig. 3 B, be provided with cavity of resorption 20 in lower metal-coating 21, be used for a femoral head parts counterdie 22 of assembling and a femoral bone cavitas medullaris parts counterdie 23.
Lower metal-coating 21 has cavity of resorption 20, and femoral head parts counterdie 22 has femoral head parts lower impressions 221, and femoral bone cavitas medullaris parts counterdie 23 has femoral bone cavitas medullaris parts lower impressions 231.Lower metal-coating 21 and cavity of resorption 20 thereof, femoral head parts counterdie 22 and femoral head parts lower impressions 221 thereof and femoral bone cavitas medullaris parts counterdie 23 and femoral bone cavitas medullaris parts lower impressions 231 thereof match with upper metal-coating 11 and epicoele 10, femoral head parts patrix 12 and femoral head parts upper impression 121 thereof and femoral bone cavitas medullaris parts patrix 13 and femoral bone cavitas medullaris parts upper impression 131 thereof respectively.Can removably be assembled in cavity of resorption 20 after any one femoral head parts counterdie 22 and any one femoral bone cavitas medullaris parts counterdie 23 combination, and the femoral bone cavitas medullaris parts lower impressions 231 of the femoral head parts lower impressions 221 that is assembled to the femoral head parts counterdie 22 in cavity of resorption 20 and femoral bone cavitas medullaris parts counterdie 23 is interconnected and forms hip joint occupying device lower impressions.
As shown in Fig. 3 B and Fig. 4 B, in counterdie 2, lower metal-coating 21 is provided with the lower die open of coming in and going out for femoral bone cavitas medullaris parts counterdie 23, the both sides of lower die open respectively have a counterdie gathering sill 201, the both sides, the other end of femoral bone cavitas medullaris parts counterdie 23 are respectively equipped with a counterdie guide rail 232 with counterdie gathering sill 201 cooperatings, and lower metal-coating 21 is provided with the counterdie locking member 50 for the shutoff lower die open.On lower metal-coating 21, counterdie tapped through hole 70 is set, is combined with counterdie threaded mandrel 71 in counterdie tapped through hole 70, counterdie tapped through hole 70 and counterdie locking member 50 are positioned at two opposed ends of lower metal-coating 21.
As shown in Fig. 1, Fig. 3 A and Fig. 3 B, for matched moulds more convenient to operate, can also two matched moulds leads 30 be set on lower metal-coating 21, opposite position arranges two two matched moulds pilot holes 31 with matched moulds lead 30 cooperatings on upper metal-coating 11; Matched moulds lead 30 is located at upper metal-coating 11, and it is also feasible that matched moulds pilot hole 31 is located on lower metal-coating 21.In addition, in metal-coating 11 situations, matched moulds lead 30 or matched moulds pilot hole 31 can directly not be set on femoral head parts patrix 12 or femoral bone cavitas medullaris parts patrix 13 on patrix 1 does not comprise; Do not comprise that at counterdie 2 in lower metal-coating 12 situations, matched moulds lead 30 or matched moulds pilot hole 31 can directly be set on femoral head parts counterdie 22 or femoral bone cavitas medullaris parts counterdie 23.
As shown in Fig. 2, Fig. 5 A and Fig. 5 B, the utility model preferred embodiment in, hip joint occupying device upper impression edge is provided with the convex platform 14 of downward protrusion, occupying device lower impressions edge is provided with lower convex platform protruding upward 24, when patrix 1 and counterdie 2 matched moulds, convex platform 14 docks with lower convex platform 24.In addition, also can further do following design: upper metal-coating 11 is higher than femoral head parts patrix 12 and femoral bone cavitas medullaris parts patrix 13, and the height that exceeds equals the height of convex platform 14; Lower metal-coating 21 is higher than femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23, and the height that exceeds equals the height of lower convex platform 24, so that upper metal-coating 11 and lower metal-coating 21 close contacts after patrix 1 and counterdie 2 matched moulds.After patrix 1 pressurizeed with counterdie 2 matched moulds like this, bone cement can carry out trimming at an easy rate, thereby the die slot of the hip joint occupying device of producing is very little, is beneficial to the demoulding, and the hip joint occupying device is also very smooth.In addition, go up metal-coating 11 and lower metal-coating 21 close contacts after making patrix 1 and counterdie 2 matched moulds, it is also feasible doing following design: upper metal-coating 11 is higher than femoral head parts patrix 12 and femoral bone cavitas medullaris parts patrix 13, and the height that exceeds equals the height sum of convex platform 14 and lower convex platform 24; Perhaps descend metal-coating 21 higher than femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23, and the height that exceeds equal the height sum of height and the convex platform 14 of lower convex platform 24.
Because a plurality of femoral head parts lower impressions 221 die joint shapes of a plurality of femoral head parts counterdies 22 match with the die joint shape of a plurality of femoral head parts upper impression 121 respectively, thereby the femoral head parts upper impression 121 that is complementary after matched moulds and femoral head parts lower impressions 221 can form complete femoral head parts die cavity.A plurality of femoral bone cavitas medullaris parts lower impressions 231 die joint shapes match with the die joint shape of a plurality of femoral bone cavitas medullaris parts upper impression 131 respectively simultaneously, thereby the femoral bone cavitas medullaris parts upper impression 131 that is complementary after matched moulds and femoral bone cavitas medullaris parts lower impressions 231 can form complete femoral bone cavitas medullaris parts die cavity.Wherein, femoral head parts lower impressions 221 and femoral head parts upper impression 121 can the mirror image symmetry also mirror image is symmetrical, this depends on the shape of femoral head parts; Equally, femoral head parts upper impression 121 and femoral head parts lower impressions 221 can the mirror image symmetry also mirror image is symmetrical, this depends on the shape of femoral bone cavitas medullaris parts, that is, the hip joint occupying device of formation can be symmetrical structure, can be also unsymmetric structure.
Again because the size of each femoral head parts upper impression 121 is different, the size of each femoral bone cavitas medullaris parts upper impression 131 is different, therefore by one of a plurality of femoral head parts patrixes 12 and one of femoral bone cavitas medullaris parts patrix 13 independent assortment, coordinate again femoral head parts counterdie 22 and the femoral bone cavitas medullaris parts counterdie 23 that is complementary, just can produce easily the hip joint occupying device of different size.referring to Fig. 6 A to Fig. 6 D and Fig. 7 A to Fig. 7 D, the femoral head parts that the femoral head parts lower impressions 221 of utilizing the femoral head parts upper impression 121 of 4 kinds of different sizes and being mated is made and the femoral bone cavitas medullaris parts independent assortment of the femoral bone cavitas medullaris parts upper impression 131 of utilizing 4 kinds of different sizes with femoral bone cavitas medullaris lower impressions 231 making that are mated, just can form the hip joint occupying device of 16 kinds of different models, thereby for the doctor provides more for different patient's femorals head and femoral stem situation, selective more flexibly, avoided the situation that the occupying device femoral head parts that exist in the prior art and femoral bone cavitas medullaris parts are not complementary to occur, solve the doctor when selecting the hip joint occupying device, can only yield to because alternative is little, selected the not too problem of the hip joint occupying device of coupling.
As Fig. 1 and shown in Figure 8, in order to strengthen the intensity of hip joint occupying device, the utility model also comprises strengthens gusset 80, can be made by the thick corrosion resistant plate of 2mm, this shape of strengthening gusset 80 can be similar to the vertical sectional shape of hip joint occupying device, but can be also other shapes, as long as easily insert in the occupying device accommodating cavity.Strengthening gusset can also replace with reinforcements such as stainless steel wire or Kirschner wires.Insert the reinforcements such as reinforcement plate in hip joint occupying device manufacturing process, can increase substantially the mechanical strength of the hip joint occupying device of producing, the generation that therefore can solve the hip joint occupying device crack conditions that causes because of undercapacity.
As shown in Figure 2, can use supporting die arrangement 100 with hip joint occupying device mould of the present utility model.Use die arrangement 100 to replace traditional manual pressing mold, can will be filled in tightly compacting and pressing evenly of bone cement in the occupying device accommodating cavity, reduce the bubble in bone cement, not only use is simple, convenient, laborsaving, and is conducive to improve the intensity of hip joint occupying device.
On material is selected, do not re-use metal material with parts femoral head parts patrix 12, femoral bone cavitas medullaris parts patrix 13, femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23 that the hip joint occupying device directly contacts, and the selection polytetrafluoroethylmaterial material, this material is medical material, and sterilization only needs conventional sterilization method to get final product, and is very convenient, use in addition polytetrafluoroethylmaterial material, the demoulding is become simply, be conducive to reduce operating time, and reduce the incidence that infects.Certainly, above-mentioned material is not limited with polytetrafluoroethylmaterial material, and other public material of making in the hip joint occupying device is also feasible.
When using hip joint occupying device mould of the present utility model, first according to patient's pulp cavity and acetabular bone size cases, select suitable femoral head parts patrix 12 and the suitable femoral bone cavitas medullaris parts patrix 13 of femoral bone cavitas medullaris parts upper impression 131 sizes of femoral head parts upper impression 121 sizes, and be installed in the epicoele 10 of metal-coating 11, patrix locking member 40 is locked, and tighten patrix threaded mandrel 61, thereby femoral head parts patrix 12 and femoral bone cavitas medullaris parts patrix 13 are fixed in the epicoele 10 of upper metal-coating 11.Mate again corresponding femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23, and be installed in the cavity of resorption 20 of lower metal-coating 21, counterdie locking member 50 is locked, and tighten counterdie threaded mandrel 71, thereby femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23 are fixed in the cavity of resorption 20 of lower metal-coating 21.lower metal-coating 21 is placed on platform, fill a part and make the material of occupying device, adopt with antibiotic bone cement in the present embodiment, then will strengthen gusset 80 is placed on bone cement, strengthening recharging a part of bone cement on gusset 80, reinforcement gusset 80 is wrapped up fully by bone cement, after adding the bone cement of capacity, upper metal-coating 11 is vertically covered on lower metal-coating 21, under the guiding of matched moulds lead 30 and matched moulds pilot hole 31, the femoral head parts upper impression 121 of femoral head parts patrix 12, the femoral bone cavitas medullaris parts upper impression 131 of femoral bone cavitas medullaris parts patrix 13 respectively with the femoral head parts lower impressions 221 of femoral head parts counterdie 22, the femoral bone cavitas medullaris parts lower impressions 231 of femoral bone cavitas medullaris parts counterdie 23 aligns fully.Utilize at last die arrangement 100 that metal-coating 11, lower metal-coating 21 are closed up fully, and keep a period of time, until inner bone cement hardens fully.Opening of dies device 100, and open metal-coating 11, expose the hip joint occupying device, taking-up gets final product.Adopting in polytetrafluoroethylene (PTFE) making femoral head parts patrix 12, femoral bone cavitas medullaris parts patrix 13, femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23 situations, after taking out the hip joint occupying device, femoral head parts patrix 12, femoral bone cavitas medullaris parts patrix 13, femoral head parts counterdie 22 and femoral bone cavitas medullaris parts counterdie 23 are reusable through washing and sterilizing.
The technical solution of the utility model is disclosed as above by preferred embodiment.Those skilled in the art should recognize in the situation that do not break away from change and the retouching that scope and spirit of the present utility model that the appended claim of the utility model discloses are done, within all belonging to the protection domain of claim of the present utility model.
Claims (13)
1. a hip joint occupying device mould, comprise patrix (1) and counterdie (2), it is characterized in that,
Described patrix (1) comprises the femoral head parts patrix (12) of at least two femoral head parts upper impression (121) with different size and the femoral bone cavitas medullaris parts patrix (13) of the femoral bone cavitas medullaris parts upper impression (131) that at least two have different size, wherein after the combination of any described femoral head parts patrix (12) and any described femoral bone cavitas medullaris parts patrix (13), form hip joint occupying device upper impression;
Described counterdie (2) comprises the femoral head parts counterdie (22) of at least two femoral head parts lower impressions (221) with different size and the femoral bone cavitas medullaris parts counterdie (23) of the femoral bone cavitas medullaris parts lower impressions (231) that at least two have different size, after wherein any described femoral head parts counterdie (22) makes up with any described femoral bone cavitas medullaris parts counterdie (23), form hip joint occupying device lower impressions;
Described hip joint occupying device upper impression and described hip joint occupying device lower impressions are formed for the hip joint occupying device die cavity of moulding hip joint occupying device jointly when matched moulds.
2. hip joint occupying device mould as claimed in claim 1, it is characterized in that, described femoral head parts upper impression (121) is that mirror image is symmetrical or non-mirror image is symmetrical with femoral head parts lower impressions (221), and described femoral bone cavitas medullaris parts upper impression (131) is that mirror image is symmetrical or non-mirror image is symmetrical with femoral bone cavitas medullaris parts lower impressions (231).
3. hip joint occupying device mould as claimed in claim 1, it is characterized in that, described patrix (1) also comprises the upper metal-coating (11) with epicoele (10), can removably be assembled in described epicoele (10) after femoral head parts patrix (12) and femoral bone cavitas medullaris parts patrix (13) combination, described counterdie (1) also comprises the lower metal-coating (21) of cavity of resorption (20), can removably be assembled in described cavity of resorption (20) after femoral head parts counterdie (22) and femoral bone cavitas medullaris parts counterdie (23) combination.
4. hip joint occupying device mould as claimed in claim 1, it is characterized in that, described femoral head parts patrix (12), described femoral bone cavitas medullaris parts patrix (13), described femoral head parts counterdie (22) and described femoral bone cavitas medullaris parts counterdie (23) are made by polytetrafluoroethylmaterial material.
5. hip joint occupying device mould as claimed in claim 3, it is characterized in that, described upper metal-coating (11) is provided with the patrix opening of coming in and going out for described femoral bone cavitas medullaris parts patrix (13), described patrix opening two opposite sides respectively have a patrix gathering sill (101), described femoral bone cavitas medullaris parts patrix (13) both sides are respectively equipped with a patrix guide rail (132) with described patrix gathering sill (101) cooperating, and described upper metal-coating (11) is provided with the patrix locking member (40) for the described patrix opening of shutoff.
6. hip joint occupying device mould as claimed in claim 5, it is characterized in that, described upper metal-coating (11) is provided with patrix tapped through hole (60), be combined with patrix threaded mandrel (61) in described patrix tapped through hole (60), described patrix tapped through hole (60) and described patrix locking member (40) are positioned at two opposed ends of described upper metal-coating (11).
7. hip joint occupying device mould as claimed in claim 3, it is characterized in that, described lower metal-coating (21) is provided with the lower die open of coming in and going out for described femoral bone cavitas medullaris parts counterdie (23), described lower die open two opposite sides respectively have a counterdie gathering sill (201), described femoral bone cavitas medullaris parts counterdie (23) both sides are respectively equipped with a counterdie guide rail (232) with described counterdie gathering sill (201) cooperating, and described lower metal-coating (21) is provided with the counterdie locking member (50) for the described lower die open of shutoff.
8. hip joint occupying device mould as claimed in claim 7, it is characterized in that, described lower metal-coating (21) is provided with counterdie tapped through hole (70), be combined with counterdie threaded mandrel (71) in described counterdie tapped through hole (70), described counterdie tapped through hole (70) and described counterdie locking member (50) are positioned at two opposed ends of described lower metal-coating (21).
9. hip joint occupying device mould as claimed in claim 1, it is characterized in that, one in described patrix (1) or counterdie (2) is provided with at least two matched moulds leads (30), and another in described patrix (1) or described counterdie (2) is provided with at least two the matched moulds pilot holes (31) with at least two described matched moulds leads (30) cooperating.
10. hip joint occupying device mould as claimed in claim 3, it is characterized in that, one in described upper metal-coating (11) or lower metal-coating (21) is provided with at least two matched moulds leads (30), and another in described upper metal-coating (11) or lower metal-coating (21) is provided with at least two the matched moulds pilot holes (31) with at least two described matched moulds leads (30) cooperating.
11. hip joint occupying device mould as claimed in claim 1, it is characterized in that, convex platform (14) and described occupying device lower impressions edge that described hip joint occupying device upper impression edge is provided with downward protrusion are provided with lower convex platform protruding upward (24), when described patrix (1) and described counterdie (2) matched moulds, described convex platform (14) docks with described lower convex platform (24).
12. hip joint occupying device mould as claimed in claim 11, it is characterized in that, described upper metal-coating (11) is higher than described femoral head parts patrix (12) and described femoral bone cavitas medullaris parts patrix (13), and the height that exceeds equals the height of described convex platform (14), described lower metal-coating (21) is higher than described femoral head parts counterdie (22) and described femoral bone cavitas medullaris parts counterdie (23), and the height that exceeds equals the height of described lower convex platform (24); Perhaps described upper metal-coating (11) is higher than described femoral head parts patrix (12) and described femoral bone cavitas medullaris parts patrix (13), and the height that exceeds equals the height sum of described convex platform (14) and described lower convex platform (24); Perhaps described lower metal-coating (21) is higher than described femoral head parts counterdie (22) and described femoral bone cavitas medullaris parts counterdie (23), and the height that exceeds equals the height sum of height and the described convex platform (14) of described lower convex platform (24), so that described upper metal-coating (11) and described lower metal-coating (21) close contact after described patrix (1) and described counterdie (2) matched moulds.
13. hip joint occupying device mould as claimed in claim 1, it is characterized in that, described hip joint occupying device mould also comprises reinforcement, described reinforcement is arranged in described femoral head parts upper impression (121) and described femoral bone cavitas medullaris parts upper impression (131), perhaps is arranged in described femoral head parts lower impressions (221) and described femoral bone cavitas medullaris parts lower impressions (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366832 CN202943807U (en) | 2012-07-26 | 2012-07-26 | Hip joint spacer die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366832 CN202943807U (en) | 2012-07-26 | 2012-07-26 | Hip joint spacer die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202943807U true CN202943807U (en) | 2013-05-22 |
Family
ID=48419520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366832 Expired - Lifetime CN202943807U (en) | 2012-07-26 | 2012-07-26 | Hip joint spacer die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202943807U (en) |
-
2012
- 2012-07-26 CN CN 201220366832 patent/CN202943807U/en not_active Expired - Lifetime
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: LINK ORTHOPEDICS (CHINA) CO.,LTD. Assignor: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Contract record no.: 2015990000797 Denomination of utility model: A kind of hip joint occupying device mould Granted publication date: 20130522 License type: Exclusive License Record date: 20150907 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20160222 Address after: 100176, Beijing economic and Technological Development Zone, Boxing, No. 12, No. 1, 3, 2, and Beijing Patentee after: LINK ORTHOPEDICS (CHINA) CO.,LTD. Address before: 100082 Beijing city Haidian District Deshengmen West Street No. 15 ocean scenery area 8-2-1201 room Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
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| CX01 | Expiry of patent term |