CN114474688A - Hip joint bone cement interval plastic uptake cell-shell mould - Google Patents
Hip joint bone cement interval plastic uptake cell-shell mould Download PDFInfo
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- CN114474688A CN114474688A CN202210401089.7A CN202210401089A CN114474688A CN 114474688 A CN114474688 A CN 114474688A CN 202210401089 A CN202210401089 A CN 202210401089A CN 114474688 A CN114474688 A CN 114474688A
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- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/303—Moulds with sealing means or the like
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- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
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- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
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- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/44—Removing or ejecting moulded articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7532—Artificial members, protheses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Prostheses (AREA)
Abstract
The invention relates to the technical field of cement interval molding, and discloses a hip joint bone cement interval blister shell mold which comprises a lower mold, wherein a cavity is formed in the lower mold, a sliding opening is formed in the inner wall of the cavity, an arc adjusting mechanism is arranged in the lower mold and comprises a cavity body formed in the lower mold, the cavity body is communicated with the sliding opening, a motor is fixed in the cavity body, a cylinder is fixed at the driving end of the motor, a telescopic rod is fixed at one end, away from the motor, of the cylinder, a frame body is fixed at the driving end of the telescopic rod, and a plurality of connecting rods are fixed on the outer wall of the frame body. The invention changes the radian of the formed cement interval by changing the circular plate according to the needs of the radian of the hip joint, has higher applicability, automatically performs self-adaptive change of the moving distance of the sealing plate after the circular plate is changed, ensures the sealing property between the sliding opening and the circular plate, and accelerates the demoulding of the cement interval by arranging the swing of the swing rod.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a hip joint bone cement interval plastic suction blister shell mold.
Background
Infection after artificial hip replacement is a complication of artificial hip replacement, can cause great pain to patients mentally, causes great economic loss and also causes great pressure to doctors. At present, the method for treating infection after artificial hip joint replacement comprises the steps of taking out an original hip joint prosthesis and thoroughly debriding, filling granular bone cement containing antibiotics into a bone marrow cavity to be used as a temporary hip joint barrier and sterilizing, removing the filled granular bone cement after infection control, and then placing a new artificial hip joint.
The existing cement interval is generally formed by a mould, application number 202021117338.2 discloses a hip joint bone cement interval plastic suction blister shell mould, which comprises a plastic suction blister shell body and a metal handle, wherein the thickness and the taper of the joint of the metal handle and the conventional femoral head are consistent with those of the conventional hip joint femoral prosthesis, and the taper is 12/14; the neck thickness and the neck shaft angle of the metal handle are consistent with those of the conventional hip joint femoral prosthesis; the metal handle body is flat as a whole, is arc-shaped from the neck to the bottom, is tapered, and is flatter and thinner than the conventional hip joint femoral prosthesis body; the plastic suction bulb shell body comprises a mould cavity for manufacturing a hip joint femoral bone cement interval bulb shell matched with the shape of a conventional hip joint femoral prosthesis; the hip joint femoral bone cement spacer and the femoral metal handle generated by the first blister model cavity are placed in the first blister model cavity to be molded into the hip joint bone cement spacer; however, there are the following problems: the formed cement interval can not be finely adjusted according to the radian of the hip joint of a patient, and the applicability is poor.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a hip joint bone cement interval plastic uptake blister mould.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hip joint bone cement interval plastic uptake blister mould comprises a lower mould, wherein a cavity is formed in the lower mould, a sliding opening is formed in the inner wall of the cavity, a radian adjusting mechanism is arranged in the lower mould and comprises a cavity body formed in the lower mould, the cavity body is communicated with the sliding opening, a motor is fixed in the cavity body, a cylinder is fixed at the driving end of the motor, a telescopic rod is fixed at one end, away from the motor, of the cylinder, a frame body is fixed at the driving end of the telescopic rod, a plurality of connecting rods are fixed on the outer wall of the frame body, circular plates are fixed at the end parts of the connecting rods, a water cavity is formed in the cavity body, a sealing plate is arranged in the water cavity in a sliding mode, a limiting plate is fixed on the outer wall of the sealing plate, a telescopic spring is fixedly connected between the limiting plate and the inner wall of the water cavity, a water tank is fixed on the outer wall of the lower mould, and a moving rod is arranged at the upper end of the water tank in a sliding mode, the utility model discloses a water pitcher, including the removal pole, piston, water pitcher, deflector, baffle, piston, water tank, the tip of removal pole is fixed with the piston that is located the water pitcher, fixedly connected with compression spring between the interior roof of piston and water pitcher, the lower extreme of water pitcher is connected with the water pipe, the water pipe passes through multi-ported pipe and water cavity intercommunication, be fixed with the deflector on the outer wall of lower mould, the one end that the piston was kept away from to the removal pole slides and inserts and establish on the deflector, and the tip is fixed with the magnet board, the lower lateral wall of deflector is fixed to be inlayed and is equipped with the electro-magnet, be provided with the adjustment mechanism who is connected with the electro-magnet on the plectane.
Preferably, a guide rod is fixed on the upper side wall of the lower die, and a pressing block is connected to the outer wall of the upper end of the guide rod in a threaded manner.
Preferably, adjustment mechanism is including fixing the spread groove at the outer wall of plectane, the gliding spout that is used for the spread groove is seted up to cylindrical outer wall, every all be fixed with the switch in the spread groove, every the switch all is connected with the electro-magnet through wire, resistance, external power source, every the outer wall of plectane all is fixed with reset spring, reset spring's tip is fixed with presses the ball.
Preferably, the diameters of the circular plates are gradually increased, and the resistances of the resistors are gradually increased.
Preferably, the switch is a self-reset switch.
Preferably, the lower lateral wall of magnet board is fixed with the montant, integrated into one piece has a plurality of archs on the outer wall of montant, the lower lateral wall of lower mould is fixed with the installation pole, the outer wall of installation pole rotates and is connected with the pendulum rod, the one end and the protruding contact of pendulum rod, fixedly connected with connecting spring between the other end outer wall of pendulum rod and the outer wall of installation pole.
Compared with the prior art, the hip joint bone cement interval plastic uptake blister mould has the advantages that:
1. the motor drives the cylinder, the frame body and the circular plates to rotate, the circular plates are replaced, then the telescopic rod drives the frame body and the circular plates to move, the end part of the circular plate on the uppermost side is inserted into the sliding opening, and the radian size of the cement is changed when the cement interval is formed in the cavity through replacement of the circular plates;
2. after the circular plate is replaced, the pressing ball presses the switch, the electromagnet is electrified to generate magnetism, the moving rod and the piston are pushed to move downwards through magnetic repulsion force between the electromagnet and the magnet plate, water in the water tank enters the water cavity through the water pipe and the multi-way pipe, the limiting plate and the sealing plate in the water cavity are further pushed to move, the end part of the sealing plate is in contact with the outer wall of the circular plate, and sealing work of the joint of the circular plate and the sliding opening is performed;
3. the resistance values of the switches connected are different, the resistance value of the switch connected above the circular plate is large, namely when the switch is pressed by the pressing ball, the current in the whole loop is small, the magnetism generated by the electromagnet is small, the magnetic repulsion force between the electromagnet and the magnet plate is small, the downward movement amplitude of the moving rod and the piston is small, the amount of water discharged from the extrusion water tank is small, the sliding distance of the water extrusion sealing plate is short, and similarly, the resistance value of the switch connected above the circular plate with small diameter is small, and the sliding distance of the water extrusion sealing plate is long, so that the moving distance of the sealing plate can be correspondingly adaptively changed according to the diameter of the circular plate;
4. when the electromagnet is powered on and powered off, the magnet plate and the vertical rod move up and down, the plurality of bulges are continuously contacted with the oscillating bar, the oscillating bar is firstly extruded to rotate upwards or downwards when the bulges are contacted with the oscillating bar, and when the bulges are not contacted with the oscillating bar, the oscillating bar rotates under the reverse elasticity of the connecting spring, so that the end part of the oscillating bar is continuously impacted with the lower side wall of the lower die, the lower die vibrates, the joint of the molded cement interval and the cavity is loosened, and the demolding of a molded workpiece is accelerated;
in summary, the present invention has higher applicability by changing the arc of the cement gap to be formed by changing the arc of the circular plate according to the need of the arc of the hip joint, and also automatically changes the moving distance of the sealing plate adaptively after the circular plate is changed to ensure the sealing property between the sliding port and the circular plate, and the vibration of the swing link accelerates the release of the cement gap.
Drawings
FIG. 1 is a schematic structural view of a hip joint bone cement interval blister shell mold provided by the invention;
FIG. 2 is an enlarged view of the structure of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a radian adjusting mechanism in the hip joint bone cement interval blister shell mold provided by the invention;
FIG. 4 is a top view of the joint between the water cavity and the circular plate in the hip joint bone cement interval blister shell mold provided by the invention;
FIG. 5 is a cross-sectional view of the end of a cylinder in the hip joint bone cement interval blister shell mold provided by the invention;
FIG. 6 is a schematic structural view of a joint between an installation rod and a swing rod in the hip joint bone cement interval blister shell mold provided by the invention;
fig. 7 is a circuit diagram of the connection of a switch, a resistor and an electromagnet in the hip joint bone cement interval plastic uptake blister mould provided by the invention.
In the figure: 1 lower die, 2 guide bars, 3 pressing blocks, 4 cavities, 5 round plates, 6 cylinders, 7 motors, 8 telescopic rods, 9 frames, 10 guide plates, 11 magnet plates, 12 moving rods, 13 water tanks, 14 water cavities, 15 sealing plates, 16 limiting plates, 17 telescopic springs, 18 multi-way pipes, 19 connecting grooves, 20 return springs, 21 pressing balls, 22 switches, 23 mounting rods, 24 swing rods, 25 connecting springs and 26 bulges.
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 a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a hip joint bone cement interval plastic uptake blister mould comprises a lower mould 1, wherein a cavity 4 is formed in the lower mould 1, a guide rod 2 is fixed on the upper side wall of the lower mould 1, a pressing block 3 is in threaded connection with the outer wall of the upper end of the guide rod 2, an upper mould is sleeved on the outer wall of the guide rod 2 to slide, and after the upper mould is in contact with the lower mould 1, the pressing block 3 is screwed up to fix the upper mould.
A sliding opening is formed in the inner wall of the cavity 4, a radian adjusting mechanism is arranged in the lower die 1, the radian adjusting mechanism comprises a cavity body arranged in the lower die 1, the cavity body is communicated with the sliding opening, a motor 7 is fixed in the cavity body, a cylinder 6 is fixed at the driving end of the motor 7, an expansion link 8 is fixed at one end, far away from the motor 7, of the cylinder 6, a frame body 9 is fixed at the driving end of the expansion link 8, a plurality of connecting rods are fixed on the outer wall of the frame body 9, circular plates 5 are fixed at the end parts of the connecting rods, circular plates 5 with different diameters are selected according to the radian of the hip bone, the circular plates 5 with different diameters are different under the premise of extending out the same length, the cylinder 6, the frame body 9 and the circular plates 5 are driven by the motor 7 to rotate, the circular plates 5 are replaced, then the expansion link 8 drives the frame body 9 and the circular plates 5 to move, and the end part of the circular plate 5 at the uppermost side is inserted into the sliding opening, the radian size can be changed by molding the cement interval in the cavity 4.
A water cavity 14 is arranged in the cavity, a sealing plate 15 is arranged in the water cavity 14 in a sliding manner, a limiting plate 16 is fixed on the outer wall of the sealing plate 15, a telescopic spring 17 is fixedly connected between the limiting plate 16 and the inner wall of the water cavity 14, a water tank 13 is fixed on the outer wall of the lower die 1, a moving rod 12 is arranged at the upper end of the water tank 13 in a sliding manner, a piston positioned in the water tank 13 is fixed at the end part of the moving rod 12, a compression spring is fixedly connected between the piston and the inner top wall of the water tank 13, a water pipe is connected at the lower end of the water tank 13 and is communicated with the water cavity 14 through a multi-way pipe 18, when the moving rod 12 and the piston move downwards, water in the water tank 13 can be extruded to enter the water cavity 14 through the water pipe and the multi-way pipe 18, the limiting plate 16 and the sealing plate 15 in the water cavity 14 are further pushed to move, the end part of the sealing plate 15 is in contact with the outer wall of the circular plate 5, and the sealing work of the connection part of the sliding port is carried out, the raw materials are prevented from entering the cavity.
A guide plate 10 is fixed on the outer wall of the lower die 1, one end of a moving rod 12 far away from a piston is inserted on the guide plate 10 in a sliding manner, a magnet plate 11 is fixed at the end part, an electromagnet is fixedly embedded on the lower side wall of the guide plate 10, an adjusting mechanism connected with the electromagnet is arranged on the circular plate 5, the adjusting mechanism comprises a connecting groove 19 fixed on the outer wall of the circular plate 5, a sliding groove used for sliding the connecting groove 19 is formed in the outer wall of the cylinder 6, a switch 22 is fixed in each connecting groove 19, each switch 22 is connected with the electromagnet through a lead, a resistor and an external power supply, a return spring 20 is fixed on the outer wall of each circular plate 5, a pressing ball 21 is fixed at the end part of each return spring 20, the diameters of the circular plates 5 are gradually increased, the resistance values of the resistors are gradually increased, and the length of the circular plates 5 extending out of a sliding opening is consistent due to the change of the radian only, therefore, when different circular plates 5 extend out, the distance between the outer wall of the circular plate 5 and the sliding opening is different, the distance between the circular plate 5 with the smaller diameter and the sliding opening is larger, and the distance between the circular plate 5 with the larger diameter and the sliding opening is smaller, so that the arrangement is made that the resistance value of the connection of the switch 22 on the circular plate 5 with the larger diameter is larger, namely when the switch 22 is pressed by the pressing ball 21, the current in the whole loop is small, the magnetism generated by the electromagnet is small, the magnetic repulsion force between the electromagnet and the magnet plate 11 is small, the moving rod 12 and the piston move downwards in a small amplitude, the amount of water discharged from the water squeezing tank 13 is small, the sliding distance of the water squeezing sealing plate 15 is short, and similarly, the resistance value of the connection of the switch 22 on the circular plate 5 with the smaller diameter is small, and the sliding distance of the water squeezing sealing plate 15 is long.
The switch 22 is a self-reset switch, which can automatically reset when not pressed, and simultaneously, when a certain pressing ball 21 completely and freely hangs down, the spring elasticity in the switch 22 can be completely overcome to press the switch 22, so that only the switch at the top can be switched on at the same time.
A vertical rod is fixed on the lower side wall of the magnet plate 11, a plurality of bulges 26 are integrally formed on the outer wall of the vertical rod, a mounting rod 23 is fixed on the lower side wall of the lower die 1, the outer wall of the mounting rod 23 is rotatably connected with a swing rod 24, one end of the swing rod 24 is contacted with the bulges 26, a connecting spring 25 is fixedly connected between the outer wall of the other end of the swing rod 24 and the outer wall of the mounting rod 23, when the electromagnet is powered on and off, the magnet plate 11 and the vertical rod move up and down, the plurality of protrusions 26 are continuously contacted with the swing rod 24, the swing rod 24 is firstly extruded to rotate upwards or downwards when the protrusions 26 are contacted with the swing rod 24, and when the protrusions are not contacted with the swing rod 24, the swing rod 24 rotates under the reverse elasticity of the connecting spring 25, so that the end part of the swing rod 24 continuously collides with the lower side wall of the lower die 1, the lower die 1 vibrates, the joint of the molded cement interval and the cavity 4 is loosened, the separation of the molded workpiece is accelerated, and the workpiece is more conveniently taken out by medical staff.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a hip joint bone cement interval plastic uptake cell-shell mould, includes lower mould (1), its characterized in that, die cavity (4) have been seted up on lower mould (1), the sliding port has been seted up on the inner wall of die cavity (4), be equipped with radian guiding mechanism in lower mould (1), radian guiding mechanism includes the cavity of seting up in lower mould (1), the cavity communicates with the sliding port, be fixed with motor (7) in the cavity, the drive end of motor (7) is fixed with cylinder (6), the one end that motor (7) were kept away from to cylinder (6) is fixed with telescopic link (8), the drive end of telescopic link (8) is fixed with framework (9), the outer wall of framework (9) is fixed with a plurality of connecting rods, and is a plurality of the tip of connecting rod all is fixed with plectane (5), be provided with water cavity (14) in the cavity, it is provided with closing plate (15) to slide in water cavity (14), the outer wall of the sealing plate (15) is fixed with a limiting plate (16), a telescopic spring (17) is fixedly connected between the limiting plate (16) and the inner wall of the water cavity (14), the outer wall of the lower die (1) is fixed with a water tank (13), a moving rod (12) is slidably arranged at the upper end of the water tank (13), a piston positioned in the water tank (13) is fixedly arranged at the end part of the moving rod (12), a compression spring is fixedly connected between the piston and the inner top wall of the water tank (13), a water pipe is connected with the lower end of the water tank (13), the water pipe is communicated with the water cavity (14) through a multi-way pipe (18), a guide plate (10) is fixedly arranged on the outer wall of the lower die (1), one end, far away from the piston, of the moving rod (12) is slidably inserted on the guide plate (10), a magnet plate (11) is fixedly arranged at the end part of the guide plate (10), and an electromagnet is fixedly embedded in the lower side wall of the guide plate (10), and the circular plate (5) is provided with an adjusting mechanism connected with the electromagnet.
2. The hip joint bone cement interval plastic uptake blister mould as claimed in claim 1, wherein a guide rod (2) is fixed on the upper side wall of the lower mould (1), and a pressing block (3) is connected with the upper end outer wall of the guide rod (2) in a threaded manner.
3. The hip joint bone cement interval plastic uptake blister mold according to claim 1, wherein the adjusting mechanism comprises a connecting groove (19) fixed on the outer wall of a circular plate (5), the outer wall of the cylinder (6) is provided with a sliding groove for the sliding of the connecting groove (19), a switch (22) is fixed in each connecting groove (19), each switch (22) is connected with an electromagnet through a lead, a resistor and an external power supply, a return spring (20) is fixed on the outer wall of each circular plate (5), and a pressing ball (21) is fixed at the end of each return spring (20).
4. The hip joint bone cement interval plastic uptake blister mold as claimed in claim 3, wherein the diameter of the plurality of circular plates (5) is gradually increased, and the resistance of the plurality of resistors is gradually increased.
5. The hip joint bone cement spacing plastic blister mould as claimed in claim 3, wherein the switch (22) is a self-resetting switch.
6. The hip joint bone cement interval plastic uptake blister mould as claimed in claim 1, wherein a vertical rod is fixed on the lower side wall of the magnet plate (11), a plurality of protrusions (26) are integrally formed on the outer wall of the vertical rod, a mounting rod (23) is fixed on the lower side wall of the lower mould (1), a swing rod (24) is rotatably connected on the outer wall of the mounting rod (23), one end of the swing rod (24) is in contact with the protrusions (26), and a connecting spring (25) is fixedly connected between the outer wall of the other end of the swing rod (24) and the outer wall of the mounting rod (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401089.7A CN114474688A (en) | 2022-04-18 | 2022-04-18 | Hip joint bone cement interval plastic uptake cell-shell mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401089.7A CN114474688A (en) | 2022-04-18 | 2022-04-18 | Hip joint bone cement interval plastic uptake cell-shell mould |
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| CN114474688A true CN114474688A (en) | 2022-05-13 |
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| CN202210401089.7A Pending CN114474688A (en) | 2022-04-18 | 2022-04-18 | Hip joint bone cement interval plastic uptake cell-shell mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090881A (en) * | 2022-07-11 | 2022-09-23 | 陕西华夏粉末冶金有限责任公司 | Powder metallurgy injection molding device |
| CN117100462A (en) * | 2023-10-19 | 2023-11-24 | 北京爱康宜诚医疗器材有限公司 | Femoral condyle spacer mold |
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