CN116747054A - Expandable pressurized fixed trauma type orthopaedics implant - Google Patents
Expandable pressurized fixed trauma type orthopaedics implant Download PDFInfo
- Publication number
- CN116747054A CN116747054A CN202311036489.3A CN202311036489A CN116747054A CN 116747054 A CN116747054 A CN 116747054A CN 202311036489 A CN202311036489 A CN 202311036489A CN 116747054 A CN116747054 A CN 116747054A
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- China
- Prior art keywords
- rod
- expansion
- buffer
- movable
- expansion plate
- 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.)
- Pending
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- 239000007943 implant Substances 0.000 title claims abstract description 39
- 208000014674 injury Diseases 0.000 title claims abstract description 15
- 230000008733 trauma Effects 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims description 16
- 230000000399 orthopedic effect Effects 0.000 claims description 14
- 210000000988 bone and bone Anatomy 0.000 description 21
- 239000002184 metal Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
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- 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
-
- 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
- A61F2/30721—Accessories
- A61F2/30749—Fixation appliances for connecting prostheses to the body
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30566—Helical springs
Abstract
The invention discloses an expandable compression fixed trauma type orthopaedics implant, which belongs to the technical field of orthopaedics medical treatment and comprises a supporting rod, wherein a buffer component is arranged on the side surface of the supporting rod, a movable cavity is arranged on the side surface of the supporting rod, a movable rod is arranged in the movable cavity, an adjusting component is arranged between the movable rod and the movable cavity, and an expansion component is arranged on the movable rod and the buffer component; the adjusting component comprises a sliding block fixedly arranged on the side surface of the moving rod, a sliding groove matched with the sliding block is formed in the inner wall of the moving cavity, a lock hole is formed in the side surface of the moving rod, a locking screw is connected in the lock hole in a threaded manner, and a through hole matched with the locking screw is formed in the side surface of the supporting rod; the expansion assembly comprises a first expansion plate fixedly arranged on the side face of the moving rod and a second expansion plate arranged on the buffer assembly. According to the scheme, the adjustment of the length of the embedded object can be realized by arranging the adjusting component, so that the adjustment of the length of the embedded object by different patients is met, and the customized cost is saved.
Description
Technical Field
The invention relates to the technical field of orthopaedics medical treatment, in particular to an expandable compression-fixation trauma orthopaedics implant.
Background
Orthopedic implants are a broad term covering some artificial devices used to replace joints of the human body, such as the hip, knee, finger and shoulder; reviewing the past orthopedic implants primarily for the elderly, they are now increasingly used by the general public to treat arthritis or replace damaged joints; the implant is an implantable article that is placed in a body cavity created by a surgical procedure or that is physiologically present for a retention time greater than 30 days; in orthopedics, metal implants are used to replace diseased bone;
the length of the existing orthopedic metal implant cannot be adjusted, so that the existing orthopedic metal implant needs to be specially customized according to bone characteristics of different patients, the existing orthopedic metal implant is lack of interchangeability, manufacturing cost is increased, in addition, when the existing orthopedic metal implant is used for connecting bones, due to the fact that the diameters of the bones are different, the bones are difficult to completely surround and connect when the existing orthopedic metal implant is fixed, and the stability of the existing orthopedic metal implant is possibly poor.
To this end, an expandable compression-fixation orthopedic implant is proposed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an expandable compression and fixation wound type orthopedic implant, which can realize the adjustment of the length of the orthopedic metal implant and can improve the wrapping property of the metal implant.
In order to solve the problems, the invention adopts the following technical scheme.
An expandable compression fixed trauma type orthopaedics implant comprises a supporting rod, wherein a buffer component is arranged on the side surface of the supporting rod, a movable cavity is arranged on the side surface of the supporting rod, a movable rod is arranged in the movable cavity, an adjusting component is arranged between the movable rod and the movable cavity, and an expansion component is arranged on the movable rod and the buffer component;
the adjusting component comprises a sliding block fixedly arranged on the side surface of the moving rod, a sliding groove matched with the sliding block is formed in the inner wall of the moving cavity, a lock hole is formed in the side surface of the moving rod, a locking screw is connected in the lock hole in a threaded manner, a through hole matched with the locking screw is formed in the side surface of the supporting rod, and an inner thread matched with the locking screw is formed in the inner wall of the through hole;
the expansion assembly comprises a first expansion plate fixedly mounted on the side face of the movable rod and a second expansion plate arranged on the buffer assembly, fastening rings are arranged on the outer surfaces of the first expansion plate and the second expansion plate, connecting holes are formed in the fastening rings, first fixing screws are movably arranged in the connecting holes, and first threaded holes matched with the first fixing screws are formed in the first expansion plate and the second expansion plate.
Further, the buffer assembly comprises a buffer column fixedly connected to the side face of the support rod, a bearing frame is arranged at the end portion of the buffer column, a buffer spring is fixedly connected to the inner wall of the bearing frame, the end portion of the buffer spring is fixedly connected with the end portion of the buffer column, and the second expansion plate is fixedly connected with the side face of the bearing frame.
Further, the damping rod is sleeved in the buffer spring, one end of the damping rod is fixedly connected with the inner wall of the bearing frame, and the other end of the damping rod is fixedly connected with the end part of the buffer column.
Further, the side fixedly connected with guide block of buffer post, the guide slot with guide block looks adaptation has been seted up to the inner wall of loading frame.
Further, the moving rod and the end part of the bearing frame are provided with accommodating cavities, the inner walls of the accommodating cavities are provided with second threaded holes, and the threaded holes are internally and spirally connected with second fixing screws.
Further, the number of the first expansion plates and the number of the second expansion plates are two, the expansion plates are symmetrically distributed, one end of a fastening ring of an expansion assembly on the moving rod is connected with one of the first expansion plates, the other end of the fastening ring is connected with the other first expansion plate, one end of a fastening ring of the expansion assembly on the bearing frame is connected with one of the second expansion plates, and the other end of the fastening ring is connected with the other second expansion plate.
Further, the number of the connecting holes is four, one connecting hole is positioned at one end of the fastening ring, and the remaining three connecting holes are positioned at the other end of the fastening ring.
Further, the number of the lock holes is a plurality of, and the lock holes are distributed at intervals on the side face of the movable rod.
Further, the number of the sliding blocks is two, the two sliding blocks are symmetrically distributed along the vertical central axis of the moving rod, and the cross sections of the sliding blocks are convex.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the scheme, the length of the implant can be adjusted by arranging the adjusting component under the mutual coordination of the supporting rod, the movable cavity, the moving rod, the sliding block, the sliding groove, the locking hole and the locking screw rod, so that the adjustment of different patients on the length of the implant is met, and the customized cost is saved; wherein, through setting up the slider, can be less the frictional force between movable rod and the activity intracavity wall, the movable rod of being convenient for removes in the activity intracavity
(2) This scheme is through setting up expansion assembly, under the interact of first expansion board, second expansion board, fastening ring, connecting hole, first set screw, can improve the laminating degree of parcel between implant and the skeleton through first expansion board and second expansion board, simultaneously, the area of being connected between increase skeleton and the implant to improve the stability of being connected between implant and the skeleton.
(3) This scheme is through setting up buffer unit, under the mutually supporting of buffer post, loading frame, buffer spring and damping pole, can weaken and disperse the vibration energy that the implant motion produced under buffer spring and damping pole's collocation use to reduce the rigid collision between implant and the skeleton, cause the harm to patient's skeleton.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 3 is a perspective view of a movable rod and a connecting structure thereof according to the present invention;
FIG. 4 is a cross-sectional view of the overall structure of the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 4B in accordance with the present invention;
fig. 6 is a perspective view of the fastening ring structure of the present invention.
The reference numerals in the figures illustrate:
1. a support rod; 2. a movable cavity; 3. a moving rod; 4. a slide block; 5. a chute; 6. a lock hole; 7. locking the screw rod; 8. a first expansion plate; 9. a second expansion plate; 10. a fastening ring; 11. a connection hole; 12. a first set screw; 13. a first threaded hole; 14. a buffer column; 15. a carrying frame; 16. a buffer spring; 17. a damping rod; 18. a guide block; 19. a guide groove; 20. a receiving chamber; 21. a second threaded hole; 22. and a second fixing screw.
Description of the embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Examples
Referring to fig. 1 to 6, an expandable compression-fixation trauma type orthopedic implant comprises a support rod 1, wherein a buffer component is arranged on the side surface of the support rod 1, a movable cavity 2 is arranged on the side surface of the support rod 1, a movable rod 3 is arranged in the movable cavity 2, an adjusting component is arranged between the movable rod 3 and the movable cavity 2, and an expansion component is arranged on the movable rod 3 and the buffer component;
the adjusting component comprises a sliding block 4 fixedly arranged on the side surface of a moving rod 3, a sliding groove 5 matched with the sliding block 4 is formed in the inner wall of a movable cavity 2, a lock hole 6 is formed in the side surface of the moving rod 3, a locking screw 7 is connected with the inner thread of the lock hole 6, a through hole matched with the locking screw 7 is formed in the side surface of a supporting rod 1, and an inner thread matched with the locking screw 7 is formed in the inner wall of the through hole;
specifically, as shown in fig. 4, the number of lock holes 6 is several, and the lock holes are distributed at intervals on the side surface of the moving rod 3.
By adopting the technical scheme, when the length of the implant is required to be adjusted, the length of the implant required by a patient is determined, the movable rod 3 can move in the movable cavity 2 until the movable rod 3 moves to a required position by pulling the movable rod 3, and the support rod 1 and the movable rod 3 are fixed by sequentially passing the locking screw 7 through the through hole and the lock hole 6, so that the length of the implant can be determined, the adjustment of different patients on the length of the implant is met, and the customized cost is saved;
the sliding block 4 is arranged, so that friction force between the movable rod 3 and the inner wall of the movable cavity 2 can be reduced, and the movable rod 3 can move in the movable cavity 2 conveniently.
The expansion assembly comprises a first expansion plate 8 fixedly mounted on the side face of the movable rod 3 and a second expansion plate 9 arranged on the buffer assembly, fastening rings 10 are arranged on the outer surfaces of the first expansion plate 8 and the second expansion plate 9, connecting holes 11 are formed in the fastening rings 10, first fixing screws 12 are movably arranged in the connecting holes 11, first threaded holes 13 matched with the first fixing screws 12 are formed in the first expansion plate 8 and the second expansion plate 9, and the sections of the first expansion plate 8 and the second expansion plate 9 are funnel-shaped.
Specifically, as shown in fig. 6, the number of the connection holes 11 is four, one of the connection holes 11 is located at one end of the fastening ring 10, and the remaining three connection holes 11 are located at the other end of the fastening ring 10.
Specifically, as shown in fig. 1, the number of the first expansion plates 8 and the second expansion plates 9 are two, and are symmetrically distributed, one end of a fastening ring 10 of the expansion assembly on the moving rod 3 is connected with one of the first expansion plates 8, the other end of the fastening ring 10 is connected with the other first expansion plate 8, one end of a fastening ring 10 of the expansion assembly on the bearing frame 15 is connected with one of the second expansion plates 9, and the other end of the fastening ring 10 is connected with the other second expansion plate 9.
Specifically, as shown in fig. 4, the number of the sliding blocks 4 is two, the two sliding blocks 4 are symmetrically distributed along the vertical central axis of the moving rod 3, and the cross section of the sliding blocks 4 is convex.
By adopting the technical scheme, bones to be connected of a patient are respectively placed between the first expansion plate 8 and the second expansion plate 9, and as the sections of the first expansion plate 8 and the second expansion plate 9 are funnel-shaped, the bones can be attached to the surfaces of the bones, and the two first expansion plates 8 and the two second expansion plates 9 are arranged to wrap the side surfaces of the connected bones, so that the contact area between the bones and the implant is increased, and the connection stability between the implant and the bones can be improved;
one end of the fastening ring 10 is connected with one of the first expansion plates 8 and one of the second expansion plates 9 by means of the first fixing screw 12, and then a suitable connection hole 11 is selected according to the diameter distance of the bone, and then the other end of the fastening ring 10 is connected with the other first expansion plate 8 and the other second expansion plate 9 by means of the first fixing screw 12, and the end part of the first fixing screw 12 needs to be screwed into the bone of the patient so as to improve the connection stability between the first expansion plate 8 and the second expansion plate 9 and the bone of the patient.
Specifically, as shown in fig. 5, the buffer assembly includes a buffer column 14 fixedly connected to a side surface of the support rod 1, a bearing frame 15 is disposed at an end portion of the buffer column 14, a buffer spring 16 is fixedly connected to an inner wall of the bearing frame 15, an end portion of the buffer spring 16 is fixedly connected to an end portion of the buffer column 14, and the second expansion plate 9 is fixedly connected to a side surface of the bearing frame 15.
Specifically, as shown in fig. 5, a damping rod 17 is sleeved in the buffer spring 16, one end of the damping rod 17 is fixedly connected with the inner wall of the bearing frame 15, and the other end of the damping rod 17 is fixedly connected with the end part of the buffer column 14.
Through adopting above-mentioned technical scheme, at patient's removal in-process, can drive movable rod 3 and bracing piece 1 and remove to bracing piece 1 can drive buffer post 14 and remove in carrying frame 15, and then compression buffer spring 16 and damping pole 17, and the collocation of buffer spring 16 and damping pole 17 uses the vibration energy that can weaken and disperse the movement of implant and produce, thereby reduces rigid collision between implant and the skeleton, causes the harm to patient's skeleton.
Specifically, as shown in fig. 5, a guide block 18 is fixedly connected to a side surface of the buffer column 14, and a guide groove 19 adapted to the guide block 18 is formed in an inner wall of the bearing frame 15.
By adopting the above technical scheme, the buffer column 14 can drive the guide block 18 to move in the guide groove 19 in the moving process, so that the buffer column 14 can be guided to move in the vertical direction.
Specifically, as shown in fig. 4, the moving rod 3 and the end portion of the bearing frame 15 are both provided with a receiving cavity 20, the inner wall of the receiving cavity 20 is provided with a second threaded hole 21, and the threaded hole is internally connected with a second fixing screw 22.
By adopting the above technical scheme, the end part of the patient's bone is clamped in the accommodating cavity 20, so that the staggered area between the bone and the implant can be increased, and the patient's bone, the movable rod 3 and the bearing frame 15 are connected through the second fixing screw 22, so that the stability between the patient's bone and the implant is further improved.
The invention also provides a method suitable for the above, comprising the following steps:
the using method comprises the following steps: firstly, determining the length of an implant required by a patient, pulling a movable rod 3 to enable the movable rod 3 to move in a movable cavity 2 until the movable rod moves to a required position, and fixing a supporting rod 1 and the movable rod 3 by sequentially passing a locking screw 7 through a through hole and a lock hole 6; then, the bones to be connected of the patient are respectively placed between the first expansion plate 8 and the second expansion plate 9, the fastening rings 10 are respectively connected and fixed with the first expansion plate 8 and the second expansion plate 9 through the first fixing screws 12, and the end parts of the first fixing screws 12 are required to be screwed into the bones of the patient to fix the bones.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (9)
1. An expandable compression-fixation trauma-type orthopedic implant, characterized by: the movable support comprises a support rod (1), wherein a buffer component is arranged on the side surface of the support rod (1), a movable cavity (2) is formed in the side surface of the support rod (1), a movable rod (3) is arranged in the movable cavity (2), an adjusting component is arranged between the movable rod (3) and the movable cavity (2), and an expansion component is arranged on the movable rod (3) and the buffer component;
the adjusting component comprises a sliding block (4) fixedly arranged on the side face of the moving rod (3), a sliding groove (5) matched with the sliding block (4) is formed in the inner wall of the movable cavity (2), a lock hole (6) is formed in the side face of the moving rod (3), a locking screw (7) is connected with the lock hole (6) in a threaded mode, and a through hole matched with the locking screw (7) is formed in the side face of the supporting rod (1);
the expansion assembly comprises a first expansion plate (8) fixedly installed on the side face of the movable rod (3) and a second expansion plate (9) arranged on the buffer assembly, fastening rings (10) are arranged on the outer surfaces of the first expansion plate (8) and the second expansion plate (9), connecting holes (11) are formed in the fastening rings (10), first fixing screws (12) are movably arranged in the connecting holes (11), and first threaded holes (13) matched with the first fixing screws (12) are formed in the first expansion plate (8) and the second expansion plate (9).
2. An expandable compression fixation trauma pack according to claim 1, wherein: the buffer assembly comprises a buffer column (14) fixedly connected to the side face of the support rod (1), a bearing frame (15) is arranged at the end portion of the buffer column (14), a buffer spring (16) is fixedly connected to the inner wall of the bearing frame (15), the end portion of the buffer spring (16) is fixedly connected with the end portion of the buffer column (14), and the second expansion plate (9) is fixedly connected with the side face of the bearing frame (15).
3. An expandable compression fixation trauma pack according to claim 2, wherein: the damping spring (16) is sleeved with a damping rod (17), one end of the damping rod (17) is fixedly connected with the inner wall of the bearing frame (15), and the other end of the damping rod (17) is fixedly connected with the end part of the damping column (14).
4. An expandable compression fixation trauma pack according to claim 3 wherein: the side of the buffer column (14) is fixedly connected with a guide block (18), and a guide groove (19) matched with the guide block (18) is formed in the inner wall of the bearing frame (15).
5. An expandable compression fixation trauma pack according to claim 4, wherein: the end parts of the moving rod (3) and the bearing frame (15) are respectively provided with a containing cavity (20), the inner wall of the containing cavity (20) is provided with a second threaded hole (21), and the threaded holes are internally and spirally connected with second fixing screws (22).
6. An expandable compression fixation trauma pack according to claim 1, wherein: the number of the first expansion plates (8) and the number of the second expansion plates (9) are two, and the first expansion plates and the second expansion plates are symmetrically distributed.
7. An expandable compression fixation trauma pack according to claim 1, wherein: the number of the connecting holes (11) is four, one connecting hole (11) is positioned at one end of the fastening ring (10), and the remaining three connecting holes (11) are positioned at the other end of the fastening ring (10).
8. An expandable compression fixation trauma pack according to claim 1, wherein: the number of the lock holes (6) is a plurality, and the lock holes are distributed at intervals on the side surface of the movable rod (3).
9. An expandable compression fixation trauma pack according to claim 1, wherein: the number of the sliding blocks (4) is two, the two sliding blocks (4) are symmetrically distributed along the vertical central axis of the moving rod (3), and the cross section of each sliding block (4) is convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311036489.3A CN116747054A (en) | 2023-08-17 | 2023-08-17 | Expandable pressurized fixed trauma type orthopaedics implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311036489.3A CN116747054A (en) | 2023-08-17 | 2023-08-17 | Expandable pressurized fixed trauma type orthopaedics implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116747054A true CN116747054A (en) | 2023-09-15 |
Family
ID=87948205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311036489.3A Pending CN116747054A (en) | 2023-08-17 | 2023-08-17 | Expandable pressurized fixed trauma type orthopaedics implant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116747054A (en) |
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2023
- 2023-08-17 CN CN202311036489.3A patent/CN116747054A/en active Pending
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