CN211985794U - Patella prosthesis trimming device - Google Patents
Patella prosthesis trimming device Download PDFInfo
- Publication number
- CN211985794U CN211985794U CN202020361631.7U CN202020361631U CN211985794U CN 211985794 U CN211985794 U CN 211985794U CN 202020361631 U CN202020361631 U CN 202020361631U CN 211985794 U CN211985794 U CN 211985794U
- Authority
- CN
- China
- Prior art keywords
- ring
- connecting rod
- fixing
- plates
- lantern ring
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to a kneecap false body trimming device, which comprises a fixing plate and i, connecting rod and motion ring, the fixed plate includes the bottom plate of two semicircular settings and the gripper jaw of installing on two bottom plates, two fixed plates pass through tensile subassembly and connect, gripper jaw on it installs respectively in the one side that both deviate from, connecting rod one end is connected with a bottom plate respectively, the other end is connected with the motion ring, the motion ring is including solid fixed ring and spherical connecting piece, this application can be fixed the kneecap of preliminary preparation completion, and simulate human motion on it, observe and maintain, make things convenient for the staff operation, thereby promote its convenience and reliability.
Description
Technical Field
The utility model belongs to the technical field of medical false body, especially, relate to a prosthetic trimming device of patella.
Background
The patella, commonly known as the patella, is a seed bone formed in the tendon of quadriceps femoris, is also the largest seed bone of the whole body, is in the shape of a flat millet and is positioned under the skin to be easily touched, and the bone has the width of the bottom, the tip of the bone downwards, the front of the bone is rough and the back of the bone is smooth; can move up and down, left and right, and can protect knee joint, the back of patella is covered with smooth cartilage and connected with patellar surface of femur, the front is rough, and quadriceps femoris muscle tendon passes through it.
The artificial patella joint is used for replacing or repairing the artificial patella after the problem of the patella of a human body per se usually occurs in the patella prosthesis, but the patella prosthesis is used for carrying out the artificial joint replacement operation, and because of the particularity of the knee joint, the patella prosthesis is usually in a motion state and needs to be frequently contacted with the femur, so the shape and the structure of the patella need to be matched with the femur of a patient, otherwise, the patella prosthesis can cause the secondary injury after the operation to the patient
Practical contents
This practicality can be fixed the kneecap of preliminary preparation completion to simulate human motion above that, observe and maintain, make things convenient for the staff operation, thereby promote its convenience and reliability.
In order to solve the problems in the background art, the present invention is realized by the following technical solutions:
a patella prosthesis trimming device comprises a fixing plate, a connecting rod and a moving ring;
the fixing plates comprise two base plates which are arranged in a semicircular shape and clamping claws arranged on the two base plates, the two fixing plates are connected through a stretching assembly, the clamping claws on the fixing plates are respectively arranged on one sides which are deviated from the two fixing plates,
one end of the connecting rod is respectively connected with a bottom plate, the other end of the connecting rod is connected with the motion ring, and the connecting rod is arranged in an arc shape and used for simulating muscles in a human body to limit the positions of the patella and the femur;
the motion ring comprises a fixing ring and a spherical connecting piece, one end of the spherical connecting piece is connected with the fixing ring, and the other end of the spherical connecting piece is connected to one end, far away from the fixing plate, of the connecting rod.
As a practical further explanation: the stretching assembly comprises a base, racks arranged on the base and connected with the two bottom plates respectively, and a gear arranged between the two racks, the two racks are arranged in opposite directions and meshed with the gear in the middle, and a hand-held knob is arranged on the gear.
As a practical further explanation: the fixed ring comprises a sleeve ring and a plurality of compression rods arranged in a circumferential array on the sleeve ring, the compression rods penetrate through the sleeve ring and are in thread fit with the sleeve ring, a hand grab handle is installed at one end, located on the outer side of the sleeve ring, of the compression rods, and a compression plate is installed at one end, located on the inner side of the sleeve ring.
As a practical further explanation: and one side of the pressing plate, which is far away from the pressing rod, is provided with a butt rubber mat.
As a practical further explanation: and buffer rubber pads are arranged in the bottom plate and the clamping claws.
Compared with the prior art, this practicality has following profitable technological effect:
1. install the preliminary patella prosthesis of accomplishing on the fixed plate, through stretching device, to bottom plate and gripper jaw application of force, it is fixed with the patella, again with the femoral prosthesis install in the motion ring, the human motion of simulation can observe whether there is a problem in the contact of femur and patella to the trimming has made things convenient for staff's operation, thereby promotes its convenience and reliability.
2. The butt rubber mat can avoid damaging the patellar prosthesis and the femoral prosthesis when the patellar prosthesis and the femoral prosthesis are fixed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of the reference numerals
1. A fixing plate; 2. a connecting rod; 3. a kinematic ring; 4. a base plate; 5. a gripper jaw; 6. a stretching assembly; 7. a fixing ring; 8. a spherical connecting member; 9. a base; 10. a rack; 11. a gear; 12. holding the knob by hand; 13. a collar; 14. a hold down bar; 15. a grab handle; 16. and a pressing plate.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the present application product is conventionally placed in use, and are merely used for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those skilled in the art.
As shown in fig. 1, the patella prosthesis trimming device comprises a fixing plate 1, a connecting rod 2 and a moving ring 3.
Specifically, the fixing plate 1 comprises two base plates 4 arranged in a semicircular shape and clamping claws 5 arranged on the two base plates 4, the two fixing plates 1 are connected through a stretching assembly 6, the clamping claws 5 on the fixing plates are respectively arranged on one sides of the two base plates which are deviated from each other, and buffering rubber pads are arranged inside the base plates 4 and the clamping claws 5;
one end of the connecting rod 2 is respectively connected with a bottom plate 4, the other end of the connecting rod is connected with the motion ring 3, and the connecting rod 2 is arranged in an arc shape and used for simulating muscles in a human body to limit the positions of the patella and the femur;
the motion ring 3 comprises a fixing ring 7 and a spherical connecting piece 8, one end of the spherical connecting piece 8 is connected with the fixing ring 7, and the other end of the spherical connecting piece is connected with one end, far away from the fixing plate 1, of the connecting rod 2.
The stretching assembly 6 that this application provided includes base 9 and the rack 10 that sets up respectively with two bottom plates 4 on base 9 and the gear 11 that sets up between two racks 10, two racks 10 set up in opposite directions and simultaneously with the gear 11 meshing in the middle of, install on gear 11 and hold knob 12.
The fixed ring 7 comprises a lantern ring 13 and a plurality of compression rods 14 in a circumferential array on the lantern ring 13, the compression rods 14 all penetrate through the lantern ring 13 and are in threaded fit with the lantern ring 13, a hand grab handle 15 is installed at one end, located on the outer side of the lantern ring 13, of the compression rods 14, a compression plate 16 is installed at one end, located on the inner side of the lantern ring 13, of the compression plate 16, and a butt rubber mat is installed on one side, away from the compression rods 14, of the compression plate 16.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical features of the technical solution of the present invention by those skilled in the art belong to the protection scope of the present invention.
Claims (5)
1. A patellar prosthetic trim device, comprising: comprises a fixed plate (1), a connecting rod (2) and a moving ring (3);
the fixing plate (1) comprises two base plates (4) which are arranged in a semicircular shape and clamping claws (5) arranged on the two base plates (4), the two fixing plates (1) are connected through a stretching assembly (6), the clamping claws (5) on the fixing plates are respectively arranged on one sides which are deviated from the two fixing plates,
one end of the connecting rod (2) is respectively connected with a bottom plate (4), the other end of the connecting rod is connected with the moving ring (3), and the connecting rod (2) is arranged in an arc shape and used for simulating muscles in a human body to limit the positions of the patella and the femur;
the motion ring (3) comprises a fixing ring (7) and a spherical connecting piece (8), one end of the spherical connecting piece (8) is connected with the fixing ring (7), and the other end of the spherical connecting piece is connected with one end, far away from the fixing plate (1), of the connecting rod (2).
2. The patellar prosthetic trim device according to claim 1, wherein: the stretching assembly (6) comprises a base (9), racks (10) which are arranged on the base (9) and connected with the two bottom plates (4) respectively, and gears (11) which are arranged between the two racks (10), wherein the two racks (10) are arranged in opposite directions and are meshed with the middle gear (11), and a hand-held knob (12) is arranged on the gears (11).
3. The patellar prosthetic trim device according to claim 1, wherein: fixed ring (7) are including lantern ring (13) and a plurality of compressing tightly pole (14) of circumference array on lantern ring (13), compressing tightly pole (14) all run through lantern ring (13), and set up with lantern ring (13) screw-thread fit compressing tightly pole (14) are located the one end in the lantern ring (13) outside and install hand grab handle (15), and pressure strip (16) are installed to the one end that is located lantern ring (13) inboard.
4. The patellar prosthetic trim device according to claim 3, wherein: and an abutting rubber mat is arranged on one side of the pressing plate (16) far away from the pressing rod (14).
5. The patellar prosthetic trim device according to claim 1, wherein: and buffer rubber pads are arranged in the bottom plate (4) and the clamping claws (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361631.7U CN211985794U (en) | 2020-03-20 | 2020-03-20 | Patella prosthesis trimming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361631.7U CN211985794U (en) | 2020-03-20 | 2020-03-20 | Patella prosthesis trimming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211985794U true CN211985794U (en) | 2020-11-24 |
Family
ID=73430434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020361631.7U Expired - Fee Related CN211985794U (en) | 2020-03-20 | 2020-03-20 | Patella prosthesis trimming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211985794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069174A (en) * | 2021-03-29 | 2021-07-06 | 山东大学齐鲁医院(青岛) | Patella trimming device |
-
2020
- 2020-03-20 CN CN202020361631.7U patent/CN211985794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069174A (en) * | 2021-03-29 | 2021-07-06 | 山东大学齐鲁医院(青岛) | Patella trimming device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101612055B (en) | Balancer for ligaments of knee | |
| CN208435890U (en) | A kind of orthopaedics Orthopedic splint installation clamp device | |
| CN211985794U (en) | Patella prosthesis trimming device | |
| CN101653387B (en) | Force-closed knee replacement prosthesis | |
| CN210541944U (en) | High-flexibility bionic half-knuckle replacement part | |
| Neo et al. | Principal structural testing of trans tibial prosthetic assemblies: Specimen preparation | |
| CN205007088U (en) | Wrist joint fixing device with spring | |
| CN210785259U (en) | Muscle strength trainer after bone joint operation | |
| CN212037489U (en) | Auxiliary detection device for thoracic surgery | |
| CN210019810U (en) | Structure of femoral prosthesis | |
| CN207627394U (en) | A kind of acetabular bone sets nail omniselector and acetabular bone sets nail device | |
| CN207654222U (en) | Join ring liquid capsule March and reproduces severed finger minor details bone and soft tissue external fixator | |
| CN214857853U (en) | Femoral stem knocking holder and femoral stem matched with same | |
| CN205268219U (en) | Anastomat with drive adjusting device | |
| CN221154329U (en) | Foldable lower limb metal force line rod convenient to disinfect | |
| CN214794133U (en) | Dynamic loading platform for in-vitro hip joint | |
| CN213721850U (en) | Medical searchlight of otolaryngology branch of academic or vocational study | |
| CN216090949U (en) | Metal test mold fixer | |
| CN204379514U (en) | For the limitary retention brace of hand illness | |
| CN109528362A (en) | Knee-joint prosthesis | |
| CN214049033U (en) | Acromioclavicular joint dislocation internal fixation device | |
| CN219480519U (en) | Traditional chinese medical science orthopedics splint fixing device | |
| CN215080422U (en) | Medical muscle recovery and spine protection training device | |
| CN113662720B (en) | Knee joint tool system | |
| CN217244971U (en) | Reverse head holder for shoulder joint system operation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |