CN216914520U - Personalized bone cement prosthesis plastic mould for joint infection - Google Patents
Personalized bone cement prosthesis plastic mould for joint infection Download PDFInfo
- Publication number
- CN216914520U CN216914520U CN202123022351.7U CN202123022351U CN216914520U CN 216914520 U CN216914520 U CN 216914520U CN 202123022351 U CN202123022351 U CN 202123022351U CN 216914520 U CN216914520 U CN 216914520U
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- China
- Prior art keywords
- bone cement
- push rod
- backup pad
- box body
- joint infection
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- 239000002639 bone cement Substances 0.000 title claims abstract description 31
- 206010060968 Arthritis infective Diseases 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 abstract description 4
- 230000000399 orthopedic effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001804 debridement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a personalized bone cement prosthesis plastic mould for joint infection, and relates to the field of medical instruments for orthopedics. The utility model provides an individualized bone cement false body plastic mould for joint infection, including two box bodys of rotating the connection, two box bodys are mirror symmetry and set up, the hollow side of two box bodys is relative, all be equipped with first backup pad in the box body, first backup pad one side is equipped with the second backup pad, it has the fine and close through-hole of a plurality of rows to open on the first backup pad, equal sliding connection has first push rod in the through-hole, first push rod all is connected with the second push rod that runs through the second backup pad, first push rod all overlaps the spring outward, the one end that the second push rod is close to first backup pad is equipped with the spacing ring, the one end that the second backup pad was kept away from to the second push rod is opened there is the activity groove, the activity inslot internal rotation is connected with moulding piece, all be equipped with positioning mechanism in the box body. The utility model has fast shaping speed and high precision, and can shape prostheses with various sizes and dimensions.
Description
Technical Field
The utility model belongs to the field of medical instruments for orthopedics, and particularly relates to a personalized bone cement prosthesis plastic mould for joint infection.
Background
Joint infection has long been a troublesome problem faced by orthopedics surgeons. The common clinical solution is to prepare a temporary bone cement prosthesis containing antibiotics after complete debridement in the operation. However, the current prosthesis manufacturing mold is limited by cost and method, and often can only complete the manufacture of the prosthesis with a fixed model, and cannot meet the personalized requirements of patients with different body types. Therefore, in clinical work, a rapid plastic mould for preparing bone cement with adjustable models is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a personalized bone cement prosthesis plastic mould for joint infection, and aims to solve the problem that the existing mould can only be used for manufacturing prostheses with fixed models and cannot meet patients with different body types.
The utility model provides an individualized bone cement false body plastic mould for joint infection, including two box bodys of rotating the connection, two box bodys are mirror symmetry and set up, the hollow side of two box bodys is relative, all be equipped with first backup pad in the box body, first backup pad one side is equipped with the second backup pad, it has the fine and close through-hole of a plurality of rows to open on the first backup pad, equal sliding connection has first push rod in the through-hole, first push rod all is connected with the second push rod that runs through the second backup pad, first push rod all overlaps the spring outward, the one end that the second push rod is close to first backup pad is equipped with the spacing ring, the one end that the second backup pad was kept away from to the second push rod is opened there is the activity groove, the activity inslot internal rotation is connected with moulding piece, all be equipped with positioning mechanism in the box body.
The principle of the utility model is as follows:
adopt this technical scheme, when needs are with bone cement preparation false body, earlier select suitable joint model according to the patient's condition, then place the joint model in the box body, later the lid closes the box body, at this moment, joint model extrusion second push rod all around outwards moves the east to drive corresponding first push rod outwards and remove, then start positioning mechanism, fix first push rod, later open the box body, take out the joint model, the box body both sides remain with the recess of joint model gomphosis, then pack bone cement to the recess intussuseption, bone cement is got after the solidification bone cement false body.
Further, positioning mechanism is including establishing the bolt at the box body upside, and threaded connection has set nut on the bolt, and set nut top is equipped with the diaphragm with bolt sliding connection, and the diaphragm both ends all are equipped with the riser, are equipped with a plurality of locating plate between two risers, are equipped with the constant head tank that a plurality of and first push rod correspond on the locating plate.
Furthermore, the positioning groove is arranged in an inverted T shape.
Furthermore, the upper side of the box body is provided with a pouring hole.
Further, two box body outsides all are equipped with locking mechanism.
The utility model has the beneficial effects that:
the utility model relates to an individualized bone cement prosthesis plastic mould for joint infection, which is provided with a box body, a first supporting plate, a second supporting plate, a first push rod, a second push rod, a positioning mechanism and a shaping sheet, can quickly and accurately prepare bone cement prostheses with various sizes and specifications, is simple and convenient to operate and high in speed, and meanwhile, the positioning mechanism designed by the utility model can be used for simultaneously fixing all the first push rods, and is convenient and quick; the bone cement prosthesis prepared by the shaping die is integrally formed, so that the stability is stronger, and the using effect is better.
Drawings
FIG. 1 is a front view of a plastic mold for a personalized bone cement prosthesis for joint infection according to the present invention;
FIG. 2 is a front cross-sectional view of a plastic mold for a personalized bone cement prosthesis for joint infection according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a left side view of section C-C of FIG. 2;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is a schematic structural diagram of a personalized bone cement prosthesis plastic mold for joint infection for placing bone cement according to the utility model;
the reference numbers in the figures are as follows: the box body 1, first backup pad 2, second backup pad 3, through-hole 4, first push rod 5, second push rod 6, spring 7, spacing ring 8, activity groove 9, moulding piece 10, bolt 11, set nut 12, diaphragm 13, riser 14, locating plate 15, constant head tank 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only illustrative of the present invention and do not limit the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1, 2 and 7, the individualized bone cement prosthesis plastic mould for joint infection comprises two rotatably connected box bodies 1, wherein a left box body 1 and a right box body 1 are arranged in mirror symmetry, the hollow sides of the two box bodies 1 are opposite, a first supporting plate 2 is fixedly connected in each box body 1, as shown in figure 3, a second supporting plate 3 fixedly connected with the box bodies 1 is arranged on the right side of the first supporting plate 2, a plurality of rows of fine through holes 4 are formed in the first supporting plate 2, first push rods 5 are slidably connected in the through holes 4, second push rods 6 penetrating through the second supporting plate 3 are fixedly connected at the right ends of the first push rods 5, springs 7 are sleeved outside the first push rods 5, the left ends of the springs 7 are fixedly connected with the first push rods 5, the right ends of the springs 7 are fixedly connected with the second push rods 6, and limit rings 8 abutted against the second supporting plates 3 are arranged at the left ends of the second push rods 6, as shown in fig. 4, the activity groove 9 has all been opened to 6 right-hand members of second push rod, the internal rotation of activity groove 9 is connected with moulding piece 10, all install positioning mechanism in the box body 1, as shown in fig. 5 and 6, positioning mechanism is including installing the bolt 11 at 1 upside of box body, threaded connection has set nut 12 on the bolt 11, set nut 12 installs the diaphragm 13 with bolt 11 sliding connection's top, the equal fixedly connected with in both ends stretches into the inside riser 14 of box around diaphragm 13, a plurality of locating plates 15 of fixedly connected with between two riser 14, be equipped with the constant head tank 16 that a plurality of and first push rod 5 correspond on the locating plate 15, constant head tank 16 is "T" shape setting down, open 1 upside of box body has filled the hole, locking mechanism is all installed in two 1 outsides of box body, this example locking mechanism is the hasp.
When the prosthesis is required to be prepared by using bone cement, firstly selecting a proper joint model according to the condition of a patient, then placing the joint model into the box body 1, then covering the box body 1, at the moment, extruding the second push rod 6 around the joint model to move outwards, moving the second push rod 6 outwards and simultaneously driving the first push rod 5 to move outwards, compressing the spring 7, then starting the positioning mechanism, rotating the positioning nut 12 to move upwards, abutting the positioning nut 12 to drive the transverse plate 13 to move upwards, moving the transverse plate 13 upwards to drive the vertical plate 14 and the positioning plate 15 to move upwards, so that the positioning groove 16 on the positioning plate 15 fixes the first push rod 5, then opening the box body 1, taking out the joint model, leaving grooves embedded with the joint model on the two sides of the box body 1, then filling the groove with the bone cement, covering the two box bodies 1 by using a buckle after the bone cement becomes similar dough, and obtaining the bone cement prosthesis after curing, or the box body 1 can be covered firstly, and bone cement can be filled through the pouring hole.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (5)
1. A personalized bone cement prosthesis plastic mould for joint infection, characterized in that: the box comprises two rotationally connected box bodies (1), the two box bodies (1) are arranged in mirror symmetry, the hollow sides of the two box bodies (1) are opposite, a first supporting plate (2) is arranged in each box body (1), a second supporting plate (3) is arranged on one side of the first supporting plate (2), a plurality of rows of fine through holes (4) are formed in the first supporting plate (2), first push rods (5) are connected in the through holes (4) in a sliding manner, the first push rods (5) are connected with second push rods (6) penetrating through the second supporting plates (3), springs (7) are sleeved outside the first push rods (5), a limiting ring (8) is arranged at one end, close to the first supporting plate (2), of each second push rod (6), a movable groove (9) is formed at one end, far away from the second supporting plate (3), the movable groove (9) is rotationally connected with a shaping sheet (10), and positioning mechanisms are arranged in the box body (1).
2. The personalized bone cement prosthesis plastic mold for joint infection according to claim 1, characterized in that: positioning mechanism is including establishing bolt (11) at box body (1) upside, threaded connection has set nut (12) on bolt (11), set nut (12) top is equipped with diaphragm (13) with bolt (11) sliding connection, diaphragm (13) both ends all are equipped with riser (14), be equipped with a plurality of locating plate (15) between two riser (14), be equipped with constant head tank (16) that a plurality of and first push rod (5) correspond on locating plate (15).
3. The personalized bone cement prosthesis plastic mold for joint infection according to claim 2, characterized in that: the positioning groove (16) is arranged in an inverted T shape.
4. The personalized bone cement prosthesis plastic mold for joint infection according to claim 1, characterized in that: the upper side of the box body (1) is provided with a pouring hole.
5. The personalized bone cement prosthesis plastic mold for joint infection according to claim 1, characterized in that: and locking mechanisms are arranged on the outer sides of the two box bodies (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123022351.7U CN216914520U (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mould for joint infection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123022351.7U CN216914520U (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mould for joint infection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216914520U true CN216914520U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123022351.7U Active CN216914520U (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mould for joint infection |
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| CN (1) | CN216914520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227994A (en) * | 2021-12-03 | 2022-03-25 | 中国人民解放军总医院第四医学中心 | Personalized bone cement prosthesis plastic mould for joint infection |
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2021
- 2021-12-03 CN CN202123022351.7U patent/CN216914520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227994A (en) * | 2021-12-03 | 2022-03-25 | 中国人民解放军总医院第四医学中心 | Personalized bone cement prosthesis plastic mould for joint infection |
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