CN114227994B - Personalized bone cement prosthesis plastic mold for joint infection - Google Patents
Personalized bone cement prosthesis plastic mold for joint infection Download PDFInfo
- Publication number
- CN114227994B CN114227994B CN202111469801.9A CN202111469801A CN114227994B CN 114227994 B CN114227994 B CN 114227994B CN 202111469801 A CN202111469801 A CN 202111469801A CN 114227994 B CN114227994 B CN 114227994B
- Authority
- CN
- China
- Prior art keywords
- push rod
- bone cement
- backup pad
- positioning
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002639 bone cement Substances 0.000 title claims abstract description 30
- 239000004033 plastic Substances 0.000 title claims abstract description 17
- 206010060968 Arthritis infective Diseases 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 6
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 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
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a personalized bone cement prosthesis plastic mould for joint infection, and relates to the field of medical appliances for orthopedics. A individualized bone cement prosthetic plastic mould for joint infection, including two box bodies that rotate the connection, two box bodies are mirror symmetry setting, the hollow side of two box bodies 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 a plurality of fine through-holes to open in the first backup pad, all 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, all cover the spring outside the first push rod, the one end that the second push rod is close to the first backup pad is equipped with the spacing ring, the one end that the second push rod kept away from the second backup pad is opened there is the movable groove, the movable inslot rotation is connected with the shaping piece, all be equipped with positioning mechanism in the box body. The plastic mould for the personalized bone cement prosthesis for joint infection has the advantages of high moulding speed and high precision, and can mould prostheses with various sizes and dimensions.
Description
Technical Field
The invention belongs to the field of medical appliances for orthopaedics, and particularly relates to a personalized bone cement prosthesis plastic die for joint infection.
Background
Joint infections have long been a troublesome problem for joint orthopedics. The common clinical solution is to prepare a temporary bone cement prosthesis containing antibiotics after thorough debridement is completed in the operation. However, the current prosthesis manufacturing mould is limited by cost and method, and the manufacturing of the prosthesis with fixed model can be only finished, so that the personalized requirements of patients with different body types can not be met. Therefore, in clinical work, there is a need for a rapid plastic mold for preparing bone cement of adjustable type.
Disclosure of Invention
The invention provides a personalized bone cement prosthesis plastic mould for joint infection, which aims to solve the problem that the existing mould can only be used for manufacturing a prosthesis with a fixed model and can not meet the requirements of patients with different body types.
A individualized bone cement prosthetic plastic mould for joint infection, including two box bodies that rotate the connection, two box bodies are mirror symmetry setting, the hollow side of two box bodies 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 a plurality of fine through-holes to open in the first backup pad, all 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, all cover the spring outside the first push rod, the one end that the second push rod is close to the first backup pad is equipped with the spacing ring, the one end that the second push rod kept away from the second backup pad is opened there is the movable groove, the movable inslot rotation is connected with the shaping piece, all be equipped with positioning mechanism in the box body.
The principle of the invention is as follows:
By adopting the technical scheme, when the prosthesis is prepared by using bone cement, firstly, a proper joint model is selected according to the condition of a patient, then the joint model is placed into the box body, then the box body is covered, at the moment, the second push rods around the joint model are extruded to move outwards, so that the corresponding first push rods are driven to move outwards, then the positioning mechanism is started to fix the first push rods, then the box body is opened, the joint model is taken out, grooves embedded with the joint model are reserved on two sides of the box body, then bone cement is filled into the grooves, and the bone cement prosthesis is obtained after the bone cement is solidified.
Further, positioning mechanism is including establishing the bolt in the box body upside, and threaded connection has positioning nut on the bolt, and positioning nut top is equipped with the diaphragm with bolt sliding connection, and diaphragm both ends all are equipped with the riser, are equipped with a plurality of locating plates between two risers, are equipped with a plurality of constant head tank that corresponds with first push rod on the locating plate.
Further, the positioning groove is arranged in an inverted T shape.
Further, a filling hole is formed in the upper side of the box body.
Further, locking mechanisms are arranged on the outer sides of the two box bodies.
The invention has the beneficial effects that:
The invention relates to a personalized 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, and can rapidly and accurately prepare bone cement prostheses with various sizes and specifications, and is simple and convenient to operate and high in speed, and meanwhile, the positioning mechanism designed by the invention can simultaneously fix all the first push rods, thereby being convenient and rapid; the bone cement prosthesis prepared by the shaping die is integrally formed, so that the stability is higher and the use effect is better.
Drawings
FIG. 1 is an elevation view of a personalized bone cement prosthesis plastic mold for joint infections according to the invention;
FIG. 2 is an elevational view in cross section of a personalized bone cement prosthesis plastic mold for joint infections according to the invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
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 view of a personalized bone cement prosthesis plastic mold placement bone cement for joint infections according to the present invention;
Reference numerals in the drawings are as follows: the box body 1, the first supporting plate 2, the second supporting plate 3, the through hole 4, the first push rod 5, the second push rod 6, the spring 7, the limiting ring 8, the movable groove 9, the shaping sheet 10, the bolt 11, the positioning nut 12, the transverse plate 13, the vertical plate 14, the positioning plate 15 and the positioning groove 16.
Detailed Description
The technical solutions according to 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 apparent that the described embodiments are merely illustrative of the present invention and not limiting the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, fig. 2 and fig. 7, a personalized bone cement prosthesis plastic mold for joint infection, including two box body 1 that rotate and connect, left and right two box body 1 are mirror symmetry setting, the hollow side of two box body 1 is relative, equal fixedly connected with first backup pad 2 in the box body 1, as shown in fig. 3, first backup pad 2 right side install with box body 1 fixed connection's second backup pad 3, it has a plurality of fine through-holes 4 to open on the first backup pad 2, equal sliding connection has first push rod 5 in the through-hole 4, first push rod 5 right-hand member equal fixedly connected with runs through second push rod 6 of second backup pad 3, first push rod 5 outside all overlaps spring 7, the left end and the first push rod 5 fixed connection of spring 7, the right-hand member and the second push rod 6 fixed connection of spring 7, the spacing ring 8 with the second backup pad 3 is all installed to the left end of second push rod 6, as shown in fig. 4, the second push rod 6 right-hand member all has movable groove 9, the inside joint has a shaping piece 10 to open on the first backup pad 2, install the box body 10 in the first push rod, install the locking mechanism is equipped with the lock mechanism on the side of a plurality of vertical plate 1, install the locating plate 16 is equipped with the locating plate 13 on the two side of the locating plate 13, the two side of the locating plate 1, the locating plate is equipped with the locating plate 13, the two side 1 is equipped with the locating plate 13, the locating plate 13 is installed on the locating plate 13, the two side 1 is equipped with the locating plate 13, and the locating plate 13 is equipped with the locating plate 13, and the two side 1 is equipped with the locating plate 13, and the top 1, and the locating plate 13 is equipped with the locating plate 13.
When the prosthesis is needed to be prepared by bone cement, a proper joint model is selected according to the condition of a patient, then the joint model is placed into the box body 1, then the box body 1 is covered, at the moment, the joint model extrudes the second push rods 6 around and moves outwards, the second push rods 6 move outwards and drive the first push rods 5 to move outwards, the springs 7 are compressed, then the positioning mechanism is started, the positioning nuts 12 are rotated to move upwards, the positioning nuts 12 are in contact with the transverse plates 13 to move upwards, the transverse plates 13 move upwards to drive the vertical plates 14 and the positioning plates 15 to move upwards, the positioning grooves 16 on the positioning plates 15 are used for fixing the first push rods 5, then the box body 1 is opened, the joint model is taken out, grooves embedded with the joint model are reserved on two sides of the box body 1, then bone cement is filled into the grooves, after the bone cement becomes similar to dough, the two box bodies 1 are covered by buckles, the bone cement prosthesis is obtained after the bone cement is solidified, and the bone cement prosthesis can be obtained by covering the box bodies 1 through filling holes.
Although the present invention has been described 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (2)
1. A personalized bone cement prosthesis plastic mold for joint infections, characterized in that: the novel plastic box comprises two box bodies (1) which are rotationally connected, wherein the two box bodies (1) are arranged in a mirror symmetry manner, 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 each first supporting plate (2), a plurality of rows of fine through holes (4) are formed in each first supporting plate (2), first push rods (5) are connected in the through holes (4) in a sliding manner, second push rods (6) penetrating through the second supporting plates (3) are connected to the first push rods (5), springs (7) are sleeved outside the first push rods (5), a limiting ring (8) is arranged at one end, close to the first supporting plates (2), of each second push rod (6) away from each second supporting plate (3), a movable groove (9) is formed in one end, and a plastic sheet (10) is connected in a rotating manner, and positioning mechanisms are arranged in each box body (1); the positioning mechanism comprises a bolt (11) arranged on the upper side of the box body (1), a positioning nut (12) is connected to the bolt (11) in a threaded manner, a transverse plate (13) which is connected with the bolt (11) in a sliding manner is arranged above the positioning nut (12), vertical plates (14) are arranged at two ends of the transverse plate (13), a plurality of positioning plates (15) are arranged between the two vertical plates (14), and a plurality of positioning grooves (16) corresponding to the first push rod (5) are formed in the positioning plates (15); the positioning groove (16) is arranged in an inverted T shape; the upper side of the box body (1) is provided with a filling hole.
2. A personalized bone cement prosthesis plastic mold for joint infections according to claim 1, characterized in that: locking mechanisms are arranged on the outer sides of the two box bodies (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469801.9A CN114227994B (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mold for joint infection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469801.9A CN114227994B (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mold for joint infection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114227994A CN114227994A (en) | 2022-03-25 |
| CN114227994B true CN114227994B (en) | 2024-06-04 |
Family
ID=80753018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111469801.9A Active CN114227994B (en) | 2021-12-03 | 2021-12-03 | Personalized bone cement prosthesis plastic mold for joint infection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114227994B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980803A (en) * | 1996-10-30 | 1999-11-09 | Prosthetic Design, Inc. | Method for constructing a prosthetic limb socket |
| EP2522310A1 (en) * | 2011-05-10 | 2012-11-14 | Heraeus Medical GmbH | Mould for producing spacers for endoprosthetics |
| CN103538193A (en) * | 2012-07-12 | 2014-01-29 | 北京爱康宜诚医疗器材股份有限公司 | Hip joint spacer mold |
| CN108784889A (en) * | 2018-05-08 | 2018-11-13 | 贵港市人民医院 | A kind of personalization joint bone cement prosthese reinforced support and its preparation and application |
| CN209048369U (en) * | 2018-05-08 | 2019-07-02 | 贵港市人民医院 | A kind of joint bone cement spacer mold of personalization |
| CN211251129U (en) * | 2019-01-23 | 2020-08-14 | 上海尚融生物科技有限公司 | Hip joint type antibiotic bone cement spacer die |
| CN211271481U (en) * | 2019-09-30 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | Mould of type decompression |
| CN213078548U (en) * | 2020-07-29 | 2021-04-30 | 李梅 | Test tube transport box for clinical laboratory of hospital |
| CN216914520U (en) * | 2021-12-03 | 2022-07-08 | 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201119966D0 (en) * | 2011-11-18 | 2012-01-04 | Biocomposites Ltd | Mould mat for producing bone cement pellets |
-
2021
- 2021-12-03 CN CN202111469801.9A patent/CN114227994B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980803A (en) * | 1996-10-30 | 1999-11-09 | Prosthetic Design, Inc. | Method for constructing a prosthetic limb socket |
| EP2522310A1 (en) * | 2011-05-10 | 2012-11-14 | Heraeus Medical GmbH | Mould for producing spacers for endoprosthetics |
| CN103538193A (en) * | 2012-07-12 | 2014-01-29 | 北京爱康宜诚医疗器材股份有限公司 | Hip joint spacer mold |
| CN108784889A (en) * | 2018-05-08 | 2018-11-13 | 贵港市人民医院 | A kind of personalization joint bone cement prosthese reinforced support and its preparation and application |
| CN209048369U (en) * | 2018-05-08 | 2019-07-02 | 贵港市人民医院 | A kind of joint bone cement spacer mold of personalization |
| CN211251129U (en) * | 2019-01-23 | 2020-08-14 | 上海尚融生物科技有限公司 | Hip joint type antibiotic bone cement spacer die |
| CN211271481U (en) * | 2019-09-30 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | Mould of type decompression |
| CN213078548U (en) * | 2020-07-29 | 2021-04-30 | 李梅 | Test tube transport box for clinical laboratory of hospital |
| CN216914520U (en) * | 2021-12-03 | 2022-07-08 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114227994A (en) | 2022-03-25 |
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