CN208958414U - A kind of near end of thighbone bone cement prosthese mold - Google Patents
A kind of near end of thighbone bone cement prosthese mold Download PDFInfo
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- CN208958414U CN208958414U CN201721455815.4U CN201721455815U CN208958414U CN 208958414 U CN208958414 U CN 208958414U CN 201721455815 U CN201721455815 U CN 201721455815U CN 208958414 U CN208958414 U CN 208958414U
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- bone cement
- mould
- mold
- femoral
- prosthese
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Abstract
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: the mold mainly includes femoral head mould and the femoral stem mould being connected by a snap therewith；The femoral head mould is hemispherical, is connected by a snap and is constituted by two a quarter hemisphere；The femoral stem mould includes neck and shank, is connected by left and right symmetrical two parts by buckle and is constituted.The prosthese prepared according to this mold, the biological shapes of femoral head and cervix, handle are closer to, operating time is not only shortened, reduce operation risk, conducive to high-quality quick completion of performing the operation, and improves patient and provide more comfortable temporary support, more good postoperative function in the spacious art of setting of bone cement.
Description
Technical field
The present invention relates to orthopaedics implant preparation technical fields, and in particular to a kind of near end of thighbone bone cement prosthese mold.
Background technique
Hip joint bone cement is spacious to be set art and is mainly used in that artificial hip joint Primary replacement is postoperative the complication such as to occur infecting.People
Work hip joint Primary replacement is postoperative need to be taken out former prosthese when infecting, using the spacious art of setting of bone cement for the second stage of joint fusion
Or it overhauls and prepares.It is reported that first infected total hip replacement incidence is about 1%, but its true infection
Rate may be higher.Although the probability of infection can be reduced using measures such as operating room laminar flow technology, disinfection by ultraviolet light, isolation,
The aggravation with artificial total hip arthroplasty (THA) more prevalentization and aging of population, the patient populations of row THA by
Year increases, and the patient populations of infection can also increase accordingly, and THA postoperative infection increases the pain of patient, extends the extensive of patient
Multiple time, the also financial burden of making patients.Currently, THA postoperative infection or the conventional treatments of hip joint infection are: one
Phase debridement+bone cement the prosthese with antibiotic is spacious is set, the second stage of row revision procedure.Wherein the bone cement prosthese with antibiotic is set spacious
Very big effect is played in art, mainly are as follows: (1) this bone cement prosthese can stablize joint, maintain the length of limbs, prevent joint
The contracture of surrounding soft tissue is conducive to second operation, and can improve therapeutic effect；(2) bone cement prosthese is fixed temporarily support
Effect, conducive to patient be expert at it is spacious set art during, limbs can as close as it is normal activity, take exercise and life needed for,
Increase the satisfaction of patient；(3) antibiotic that bone cement is added can muchly discharge antibiotic, be able to maintain that local drug
Treatment concentration improves the effect of whole body antibacterial, facilitates the infection at radical surgery position.But the bone cement prosthese with antibiotic
Have the disadvantage in that (1) pure manual kneading prosthese difficulty is high: it is hand-made it is spacious to set the bone cement prosthetic procedure time short, currently
When surgical doctor is expert at that hip joint is spacious to set art, frequent pure hand-made bone cement model, because bone cement hardening causes operation to be cured fastly
The operating time of teacher is short, and usually at 3-5 minutes or so, in this time window, surgical doctor need to be manual by pockets of bone cement
Suitable Stem shape, femur head shapes, neck of femur shape are pinched into, pinches forming operation difficulty by hand within the so short time
Greatly, failure rate is high, often need it is secondary remake bone cement, extend operating time, increase patients surgery risk；(2) hand-made
Spacious to set bone cement model handle side biological shapes bad: this handle will be inserted near end of thighbone pulp cavity, this handle determines that bone cement model is inserted
The stability entered, such handle size cannot fill proximal medullary cavity completely, will cause the unstable of bone cement model, be easy to loosen,
It causes patient's lower limb function bad, causes the adverse reactions such as patient's postoperative pain；(3) hand-made spacious to set bone cement model bone water
Mud neck biological shapes are bad, this neck determines the top rake of bone cement model, the length of collodiaphyseal angle, bone cement eck mould type, such as suffer from
The production of person's bone cement neck is bad, be easy to cause patient's lower limb different in size, if too long be easy to cause the excessive muscle stretch of patient,
Cause pain, too short to be easy to cause limbs of patient atrophy, secondary operation is difficult.(4) hand-made spacious to set bone cement model bone water
Mud head biological shapes are bad, and size, wrapped and bone cement head and hip of this bone cement model determined in acetabular bone close
The matching of section.In short, the previous molding bone cement shape of manual operations is difficult and near end of thighbone pulp cavity, the femur of individual biology
Neck, the size of femoral head are completely docile, caused by bone cement model and individual it is inadaptable, increase the pain of patient, reduce
The postoperative function of patient influences the hip revision operation of second phase.
Summary of the invention
In view of the above-mentioned problems in the prior art, being expert at the object of the present invention is to provide one kind, artificial hip joint is spacious to be set
When art, near end of thighbone, femoral head size can be measured in the preoperative and is selected with the matched femoral head mould of individual patients and femoral stem
Mould, makes bone cement prosthese in art based on this model, this prosthese meets individual patients biology size, near end of thighbone pulp cavity, stock
Bone neck, the size of femoral head are completely docile, reduce operating time, increase stability, improve success rate of operation, and it is postoperative to reinforce patient
Function.
The present invention is realized using following technical scheme:
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: the mold mainly includes femoral head mould and leads to therewith
Cross the femoral stem mould snapped connection；The femoral head mould is hemispherical, is connected by a snap and is constituted by two a quarter hemisphere；
The femoral stem mould includes neck and shank, is connected by left and right symmetrical two parts by buckle and is constituted.
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: the mold further includes that upper end is circular
Reinforcement steel wire；The circular position for reinforcing steel wire upper end is located at the cavity center of femoral head mould, the long wire cut of lower end
In the cavity center of femoral stem mould.
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: femoral stem mould bottom is equipped with and is used for
The fixed fixation hole for reinforcing steel wire lower end.
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: if the shank of the femoral stem mould is equipped with
Dry bone cement tap.
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: femoral head mould bottom surface is flat equipped with head
Platform, the neck of the femoral stem mould are equipped with neck platform, head platform and neck platform and are connected by buckle；The head platform and neck platform
It is respectively provided with a circle bone cement tap.
A kind of near end of thighbone bone cement prosthese mold, it is characterised in that: the neck and shank of the femoral stem mould
Angle be 127 °.
A kind of production method of near end of thighbone bone cement prosthese, it is characterised in that mainly include the following steps:
1) above-mentioned bone cement femoral prosthesis mold is made；The size of femoral head mould is that diameter is 40-70mm hemispherical；Femur
The length of handle mould is 100-140mm；
2) according to the femur size of patient, the femoral head mould and femoral stem mould of corresponding size: preoperative shooting and patient are selected
The X piece of pelvis and the same size of Ipsilateral hip joint measures near end of thighbone and femoral head size according to X piece, selects corresponding size
Femoral head mould and femoral stem mould；
3) it modulates bone cement: antibiotic, ratio being added in bone cement powder are as follows: vancomycin is added in every 20g bone cement
1.0g after being sufficiently mixed, is added bone cement liquid and stirs to dough, inject prefabricated mold；
4) it prepares bone cement prosthese: after bone cement enters the wire drawing phase, bone cement being put into the left and right of femoral stem mould respectively
The left and right a quarter hemisphere on two sides and femoral head mould；Then by the left and right of the left and right two sides of femoral stem mould and femoral head mould
A quarter hemisphere passes through buckle mutually splicing, extra bone cement respectively and is discharged by bone cement tap；
5) it dismantles mold: passing through after bone cement hardening, then by bone cement femoral stem mold and bone cement femoral head mold
Buckle dismantling, obtains bone cement prosthese.
Above-mentioned near end of thighbone bone cement prosthese, through preoperative measurement, can accurately determine will be big using which kind of in art
Small bone cement mold finally can choose the bone cement die device of suitable size, can be close by femur using Myelocavity file in art
End Myelocavity file is opened to suitable size, by the bone cement merging mold with antibiotic when use, can form the spacious of suitable shape
Set bone cement, can not only precise measurement need the spacious bone cement size set, and suitable shape can be formed, the more adjunction of this shape
The biological shapes of femoral head and cervix, handle are bordering on, operating time is not only shortened, reduce operation risk, are conducive to perform the operation high-quality quick complete
At, and improve patient and provide more comfortable temporary support, more good postoperative function in the spacious art of setting of bone cement.
Compared with prior art, the present invention has the advantage that (1) preoperative measurement, can determine spacious using bone cement substantially
Set the size of prosthese.(2) bone cement is spacious sets prosthese production simply, i.e., will stir pockets of bone cement and be squeezed into bone cement femur
Handle, femoral head mold in can form that sizeable bone cement is spacious to set model, one-pass molding reduces and spacious sets bone cement prosthese
Production Time.(3) bone cement of antibiotic is added, can persistently discharge antibiotic, effectively control infection is conducive to treatment and two
Stage operation.(4) make it is molding it is spacious set bone cement prosthese, shape is closer to the biological shapes of femoral head and cervix, handle, with trouble
Person's matching degree is splendid, is not easy to loosen, effectively maintenance limbs length, provides limb support, reduces suffering limb cripetura, contracture, reduce
The pain of patient increases the postoperative function of patient, accomplishes fluently sufficient basis for the hip revision operation of second phase in the future.
Detailed description of the invention
Fig. 1 is positive structure schematic of the invention；
Fig. 2 is side structure schematic diagram of the invention；
Fig. 3 is the present invention looks up structural representation of head platform and neck platform of the present invention；
In figure: 1- femoral head mould；2- femoral stem mould；2-1- neck；2-2- shank；3- reinforces steel wire；4- fixation hole；5- bone
Cement tap；6- platforms；7- neck platform.
Specific embodiment
The invention is further explained in the following combination with the attached drawings of the specification.
The present invention devises a kind of near end of thighbone bone cement prosthese mold, which mainly includes femoral head mould 1 and femur
2 two parts of handle mould (as shown in Figure 1, Figure 2)；Bone mould 1 and femoral stem mould 2 are connected by a snap；The femoral head mould 1 is hemispherical,
It is connected by a snap and is constituted by left and right two a quarter hemisphere；Femoral stem mould 2 includes neck 2-1 and shank 2-2, by left and right
Symmetrical two parts are connected by buckle to be constituted.The shape of femoral stem mould is similar to human femur under loading handle.
The near end of thighbone bone cement prosthese of support force and overall performance is had more in order to obtain, which further includes that upper end is
Circular reinforcement steel wire 3, the cavity that the circular position of 3 upper end of reinforcement steel wire is located at femoral head mould 1 is central, and the 2 of lower end
Root long steel wire is located at the cavity center of femoral stem mould 2；2 bottom of femoral stem mould (i.e. distal end), which is equipped with, reinforces steel wire lower end for fixed
Fixation hole 4.1 bottom surface of femoral head mould is equipped with head platform 6, and the neck 2-1 of femoral stem mould is equipped with neck platform 7, and head platform 6 and neck are flat
Platform 7 is connected (see Fig. 1, Fig. 3) by buckling.The angle of the neck 2-1 and shank 2-2 of femoral stem mould are 127 °.
In order to realize bone cement filled up completely with mould and fill uniformly, several bone water are equipped in the shank 2-2 of femoral stem mould
Mud tap 5；A circle bone cement tap 5(is also respectively provided on head platform 6 and neck platform 7 and sees Fig. 1, Fig. 3).
The size of femoral head mould 1 is that diameter is 40-70mm hemispherical；The length of femoral stem mould 2 is 100-140mm；Respectively
The femoral head mould and femoral stem mould of several models need to be prepared.
Different patients select the femoral head mould and femoral stem mould of different model, the method is as follows: preoperative shooting and patient's pelvis
With the X piece of the same size of Ipsilateral hip joint, near end of thighbone and femoral head size are measured according to X piece, select the femur of corresponding size
Head mould and femoral stem mould.
Near end of thighbone bone cement prosthese designed by the present invention the production method is as follows 1, Preoperative Methods: preoperative will to suffer from
Person's pelvis, Ipsilateral hip joint are shot and the X piece of patient body 1:1 size, forms device phase using with bone cement prosthese mold
The measuring tool measurement near end of thighbone and femoral head size matched, the near end of thighbone and stock that can determine patient substantially preoperative in this way
The size of bone selects the bone cement femoral prosthesis mold of suitable types.2, in art: prior step and conventional hip replacement
It is almost the same, by the Myelocavity file file type that near end of thighbone is used and bone cement prosthese mold formation device matches, utilize Myelocavity file
Model determines the model size of bone cement femoral stem mold, using in preoperative measurement or art directly utilizing vernier caliper measurement
The size of femoral head determines bone cement femoral head mold, and next the bone cement of antibiotic, ratio are as follows: every 20g is added in stirring
Vancomycin 1.0g is added in bone cement, applies 2 to 3 parts of bone cements depending on patient volume, and after being sufficiently mixed, the stirring of bone cement liquid is added
Bone cement is put into left and right two sides and the bone water of bone cement femoral stem mould respectively after bone cement enters the wire drawing phase to dough
(bone cement being put into need to fill up in mold as far as possible, and be put on the left and right two sides of a quarter hemisphere of mud femoral head mould
Bone cement amount should be slightly more than the volume of mold), it will reinforce in the insertion fixation hole of steel wire 3 and adjust the position on top, it is made to the greatest extent may be used
It can be centrally located.Then by the left and right two sides of bone cement femoral stem mould by buckle mutually splicing, extra bone cement is logical
The discharge of bone cement tap 5 is crossed, the tap on femoral stem mould preferably longitudinally arranges, each column in seam two sides.Next by bone
The neck platform 7 and bone cement femoral head die head platform 6 of cement femoral stem mould are attached, and extra bone cement is arranged by bone cement
Portal 5 discharges.It is of course also possible to which left and right two sides femoral stem mould is first assembled, left and right two sides femoral head mould is first assembled, then
It is packed into and reinforces steel wire 3, bone cement is then injected separately into femoral head mould and femoral stem mould, finally by femoral head mould and femoral stem
Mould is spliced.It is disassembled after bone cement hardening, then by bone cement femoral stem mold and bone cement femoral head mold by buckle,
Bone cement model is placed in acetabular bone by the interim spacious bone cement model (i.e. bone cement prosthese) set of final molding, rear to suture, and completes hand
Art.This model meets individual patients biology size, more stable, durable because increasing steel wire, reduces operating time, improves hand
Art success rate reinforces the postoperative function of patient, reduces the pain of patient, promote the recovery of patient.
The design has the advantages that (1) preoperative measurement, can determine substantially and apply the spacious size for setting prosthese of bone cement.(2)
Bone cement is spacious to set that prosthese production is simple, i.e., the mold that will be stirred pockets of bone cement and be squeezed into bone cement femoral stem, femoral head
Interior to form that sizeable bone cement is spacious to set model, one-pass molding reduces and spacious sets bone cement prosthese Production Time.(3) add
Enter the bone cement of antibiotic, can persistently discharge antibiotic, effectively control infection is conducive to treatment and secondary operation.(4) it makes
It is molding it is spacious set bone cement prosthese, shape is closer to the biological shapes of femoral head and cervix, handle, splendid with patient's matching degree, no
It easily loosens, effectively maintenance limbs length, limb support is provided, suffering limb cripetura, contracture is reduced, reduces the pain of patient, is increased
The postoperative function of patient accomplishes fluently sufficient basis for the hip revision operation of second phase in the future.
Claims (6)
1. a kind of near end of thighbone bone cement prosthese mold, it is characterised in that: the mold mainly includes femoral head mould (1) and leads to therewith
Cross the femoral stem mould (2) snapped connection；The femoral head mould (1) is hemispherical, is connected by two a quarter hemisphere by buckle
Connect composition；The femoral stem mould (2) includes neck (2-1) and shank (2-2), passes through buckle phase by left and right symmetrical two parts
Even constitute.
2. a kind of near end of thighbone bone cement prosthese mold according to claim 1, it is characterised in that: on the mold further includes
End is circular reinforcement steel wire (3)；The circular position for reinforcing steel wire (3) upper end is located at the cavity of femoral head mould (1)
Center, the long steel wire of lower end are located at the cavity center of femoral stem mould (2).
3. a kind of near end of thighbone bone cement prosthese mold according to claim 1, it is characterised in that: the femoral stem mould
(2) bottom is equipped with for the fixed fixation hole (4) for reinforcing steel wire lower end.
4. a kind of near end of thighbone bone cement prosthese mold according to claim 1, it is characterised in that: the femoral stem mould
Shank (2-2) is equipped with several bone cement taps (5).
5. a kind of near end of thighbone bone cement prosthese mold according to claim 1, it is characterised in that: femoral head mould bottom
Face is equipped with head platform (6), and the neck (2-1) of the femoral stem mould is equipped with neck platform (7), and head platform and neck platform pass through buckle phase
Even；The head platform (6) and neck platform (7) are respectively provided with a circle bone cement tap (5).
6. a kind of near end of thighbone bone cement prosthese mold according to claim 1, it is characterised in that: the femoral stem mould
The angle of neck (2-1) and shank (2-2) is 127 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455815.4U CN208958414U (en) | 2017-11-03 | 2017-11-03 | A kind of near end of thighbone bone cement prosthese mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455815.4U CN208958414U (en) | 2017-11-03 | 2017-11-03 | A kind of near end of thighbone bone cement prosthese mold |
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| CN208958414U true CN208958414U (en) | 2019-06-11 |
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| CN201721455815.4U Expired - Fee Related CN208958414U (en) | 2017-11-03 | 2017-11-03 | A kind of near end of thighbone bone cement prosthese mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595444A (en) * | 2017-11-03 | 2018-01-19 | 青田县人民医院 | A kind of preparation method of near end of thighbone bone cement prosthese mould and the prosthese |
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2017
- 2017-11-03 CN CN201721455815.4U patent/CN208958414U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595444A (en) * | 2017-11-03 | 2018-01-19 | 青田县人民医院 | A kind of preparation method of near end of thighbone bone cement prosthese mould and the prosthese |
| CN107595444B (en) * | 2017-11-03 | 2023-11-21 | 青田县人民医院 | Proximal femur bone cement prosthesis die and manufacturing method of prosthesis |
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Granted publication date: 20190611 Termination date: 20201103 |