CN118044865A - Combined fixing system for hook needle and bone fracture plate - Google Patents
Combined fixing system for hook needle and bone fracture plate Download PDFInfo
- Publication number
- CN118044865A CN118044865A CN202410273083.5A CN202410273083A CN118044865A CN 118044865 A CN118044865 A CN 118044865A CN 202410273083 A CN202410273083 A CN 202410273083A CN 118044865 A CN118044865 A CN 118044865A
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- Prior art keywords
- needle
- jack
- hook
- base body
- supporting surface
- 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
Links
- 208000010392 Bone Fractures Diseases 0.000 title claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 42
- 230000037431 insertion Effects 0.000 claims abstract description 42
- 210000000988 bone and bone Anatomy 0.000 claims description 35
- 238000005452 bending Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 210000004417 patella Anatomy 0.000 description 12
- 210000000078 claw Anatomy 0.000 description 8
- 210000003414 extremity Anatomy 0.000 description 2
- 210000004197 pelvis Anatomy 0.000 description 2
- 206010034122 Patella fracture Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 210000002221 olecranon process Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
A combined fixation system of a crochet and a bone fracture plate comprises a base component and a crochet component. The crochet component comprises a crochet. One end of the hook needle is inserted on the base component, and the other end of the hook needle is provided with an insertion end which is arranged in a sharp mode. The insertion end is formed by three planes and comprises two insertion surfaces and a supporting surface. The supporting surface is located the inserting end is towards on the position of base subassembly, every collude the needle the supporting surface orientation the lower base with go up the center of base, the area of supporting surface is greater than the area of inserting the face just the supporting surface extends to collude the kink department of needle, two contained angle angles between the plane that the inserting surface is located are greater than the inserting surface with contained angle between the supporting surface, thereby make after inserting the area of contact of supporting surface is bigger, guarantees that the atress direction is unanimous, improves fixed effect, can not become flexible or drop after the re-penetration.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a combined fixing system of a hook needle and a bone fracture plate.
Background
At present, the patella claw structure is an integrally formed five-claw structure, two claws are arranged on one side, three claws are arranged on the other side, but the patella is generally fixed firmly and cannot be loosened, the common patella claw cannot be matched with and suitable for each patella claw in terms of overall bending degree and shape due to mass production, and the patella claw cannot be loosened, so that the patella claw needs to be reinforced on the original basis, and the fixing effect of the patella can be guaranteed.
In the prior art, the patella claw is required to be used in the clinical treatment of patella fracture, especially in nursing work. The patella fixer in the prior art is a straight-line type pressure-regulating patella external fixer as disclosed in patent No. CN201510229022.X, and comprises a straight-line type main beam, wherein pressure-regulating fixing pieces are arranged at two ends of the main beam, a pressure-regulating nut is arranged at one end of the pressure-regulating nut and can be rotationally regulated and fastened on threads of the straight-line type main beam, arc-shaped auxiliary beams are arranged below the two ends of the pressure-regulating nut, auxiliary fixing pieces and fixing needles are arranged at the two ends of the arc-shaped auxiliary beams, and auxiliary fixing can be further arranged in the middle section of the straight-line type main beam. However, the tip of the hook needle in the prior art is generally conical, and after the hook needle is driven into bone, the side wall of the hook needle is smooth curved, so that the fixing effect is poor.
Disclosure of Invention
In view of the above, the present invention provides a combined fixation system for a hook needle and a bone plate to solve the above-mentioned technical problems.
A combined fixation system of a crochet hook and a bone plate comprises a base component and two crochet hook components arranged on the base component. The needle hooking component comprises a plurality of needle hooking components arranged on the base component, wherein the needle hooking components are of arc structures, and the opening direction of the needle hooking components faces to the other needle hooking components. The needle hooking device is characterized in that one end of the needle hooking device is inserted into the base assembly, the other end of the needle hooking device is provided with an insertion end which is arranged in a sharp mode, and the insertion end is formed by three planes and comprises two insertion surfaces and a supporting surface. The support surface is positioned at a position where the insertion end faces the base assembly, and the support surface of each hook faces the centers of the lower base and the upper base. The area of the supporting surface is larger than that of the inserting surface, the supporting surface extends to the bending position of the hook needle, and the included angle between the planes of the two inserting surfaces is larger than that between the inserting surface and the supporting surface.
Further, the base assembly includes a lower base, an upper base disposed on the lower base, and a plurality of connection members connecting the lower base and the upper base.
Further, the lower base comprises a lower base body, a first sawtooth section arranged on the lower base body, a plurality of threaded holes arranged on the lower base body, a plurality of first jacks arranged on the lower base body, and a plurality of second jacks arranged on the lower base body.
Further, the first jack is located on the side wall of the lower base body, the second jack is communicated with the first jack, and the central shafts are perpendicular to each other.
Further, the upper base comprises an upper base body, a second sawtooth section arranged on the upper base body, a plurality of through holes arranged on the upper base body, a plurality of third jacks arranged on the upper base body and a plurality of fourth jacks arranged on the upper base body.
Further, the third jack is located on the side wall of the upper base body, the fourth jack is communicated with the third jack, and the central shafts of the fourth jack and the third jack are perpendicular to each other.
Further, the second sawtooth section is positioned on the end surface of the upper base, which faces the lower base, the first sawtooth section and the second sawtooth section are meshed with each other,
Further, the through hole is in a rounded rectangle shape, and the lengths of the two ends of the through hole are larger than the distance between the two threaded holes.
Further, the hooking assembly further comprises a plurality of fixing plugs arranged on the hooking, wherein the fixing plugs are respectively arranged in the second jack and the fourth jack and press one end of the hooking.
Compared with the prior art, the hook needle and bone plate combined fixing system provided by the invention has the advantages that the hook needle is provided with the insertion end, and the insertion end comprises two insertion surfaces and one supporting surface. Each collude the needle the holding surface orientation the lower base with go up the center of base, the area of holding surface is greater than the area of inserting the face just the holding surface extends to collude the kink of needle, thereby make after inserting the holding surface's area of contact is bigger, guarantees that the atress direction is unanimous, improves fixed effect, can not become flexible or drop after stabbing again, also can be fixed in the lower surface of bone piece and form the grasp type fixedly, like this the holding surface can be with the lower surface contact of bone piece, its area of contact is bigger also can be better with the lower surface contact of bone piece, guarantees the stability of grasp type, forms the double fixation of intramedullary and extramedullary.
Drawings
Fig. 1 is a schematic structural view of a combined hook needle and bone plate fixing system according to the present invention.
Fig. 2 is an exploded view of the combined hook needle and bone plate fixation system of fig. 1.
Fig. 3 is a schematic view of the structure of the hook needle of the combined hook needle and bone plate fixing system of fig. 1.
Detailed Description
Specific embodiments of the present invention are described in further detail below. It should be understood that the description herein of the embodiments of the invention is not intended to limit the scope of the invention.
Fig. 1 to 3 are schematic structural views of a combined hook needle and bone plate fixing system according to the present invention. The combined fixation system of the crochet and the bone fracture plate comprises a base assembly 10 and two crochet assemblies 20 arranged on the base assembly 10. The combined fixation system of the hook needle and the bone plate is suitable for fixing bones such as patella, metaphyseal extremity, hand and foot, pelvis, etc., two combined fixation systems of the hook needle and the bone plate can be a group for fixing tension band parts such as patella and olecranon, or a single combined fixation system of the hook needle and the bone plate can be used for fixing and pressurizing bone blocks of metaphyseal extremity, hand and foot, pelvis, etc., and the combined fixation system of the hook needle and the bone plate also comprises other functional modules such as assembly components, installation components, etc., which are the technology known by the person skilled in the art and are not repeated herein.
The base assembly 10 includes a lower base 11, an upper base 12 provided on the lower base 11, and a plurality of connection members 13 connecting the lower base 11 and the upper base 12.
The lower base 11 includes a lower base body 111, a first serration section 112 provided on the lower base body 111, a plurality of screw holes 113 provided on the lower base body 111, a plurality of first insertion holes 114 provided on the lower base body 111, and a plurality of second insertion holes 115 provided on the lower base body 111. The first serration element 112 is located on the end surface of the lower base 11 facing the upper base 12, and is used to be engaged with the serration of the upper base 12 for fixing so as to prevent movement. The threaded hole 113 is located on the first serration 112, and is used for inserting the connecting piece 13. The first insertion hole 114 is located on a side wall of the lower base body 111, and the second insertion hole 115 is communicated with the first insertion hole 114, and the central axes of the second insertion hole and the first insertion hole are perpendicular to each other.
The upper base 12 includes an upper base body 121, a second saw tooth section 122 provided on the upper base body 121, a plurality of through holes 123 provided on the upper base body 121, a plurality of third insertion holes 124 provided on the upper base body 121, and a plurality of fourth insertion holes 125 provided on the upper base body 121.
The second serration 122 is located on the end surface of the upper base 12 facing the lower base 11, and the first serration 112 and the second serration 122 are engaged with each other, thereby fixing the lower base 11 and the upper base 12 to achieve compression of the bone pieces. The through hole 123 is in a rounded rectangle, the lengths of two ends of the through hole are larger than the distance between the two threaded holes 113, the third jack 124 is located on the side wall of the upper base body 121, and the fourth jack 125 and the third jack 124 are mutually communicated and the central axes of the fourth jack and the third jack are mutually perpendicular.
The connecting member 13 is a connecting member such as a screw, and is inserted into the through hole 123 and the threaded hole 133, thereby locking the lower base 11 and the upper base 12.
The hooking assembly 20 includes a plurality of hooking needles 21 disposed on the base assembly 10, and a plurality of fixing plugs 22 disposed on the hooking needles 21.
The hooked needle 21 is respectively disposed on the lower base 11 and the upper base 12 in this embodiment and spaced from each other. The hooking needle 21 has an arc structure with an opening direction facing the other hooking needle assembly 20, one end of the hooking needle 21 is inserted into the third insertion hole 124 or the first insertion hole 114, and the other end has a sharp insertion end 23. The fixing plugs 22 are respectively disposed in the second jack 115 and the fourth jack 125 and press one end of the hook needle 21, so as to fix the hook needle 21, and each hook needle 21 can be independently rotated and adjusted to change the direction, adapt to different positions or the bone surface morphology of a patient, adapt to different fixing requirements in clinic, and achieve the effects of closer and fitting fixation. The insertion end 23 is formed of three flat surfaces including two insertion surfaces 231 and a support surface 232. The support surface 232 is positioned at the top of the insertion end 23 toward the base assembly 10, thereby providing better force. The supporting surface 232 of each hook 21 is inclined inward toward the center of the lower base 11 and the upper base 12, i.e. the supporting surfaces 232 of the hooks 21 on both sides, so as to ensure uniform stress direction and improve fixing effect. The area of the supporting surface 232 is larger than that of the insertion surface 231, and the supporting surface 232 extends to the bending position of the hook needle 21, so that the contact area of the supporting surface 232 after insertion is larger, and the fixing effect is improved. The included angle between the planes of the two insertion surfaces 231 is larger than the included angle between the insertion surfaces 231 and the supporting surface 232, so that a conical surface with a small angle is formed to facilitate penetration. In addition, the hooking needle assembly 20 not only can be inserted into the bone marrow cavity, but also can be fixed on the lower surface of the bone block to form a gripping type fixation, so that the supporting surface 232 can be contacted with the lower surface of the bone block, the area of the supporting surface 232 is larger than that of the insertion surface 231, the supporting surface 232 extends to the bending part of the hooking needle 21, the contact area is larger and can be better contacted with the lower surface of the bone block, the stability of the gripping type fixation is ensured, and the double fixation of intramedullary and extramedullary fixation is formed. Compared with the prior art, the combined fixation system of the hook needle and the bone plate is characterized in that the hook needle 21 is provided with the insertion end 23, and the insertion end 23 comprises two insertion surfaces 231 and a supporting surface 232. The supporting surface 232 of each hooking needle 21 faces the centers of the lower base 11 and the upper base 12, the area of the supporting surface 232 is larger than that of the insertion surface 231, and the supporting surface 232 extends to the bending position of the hooking needle 21, so that the contact area of the supporting surface 232 after insertion is larger, the stress direction is ensured to be consistent, the fixing effect is improved, the hooking needle cannot loosen or fall off after re-penetration, and the hooking needle can be fixed on the lower surface of a bone block to form a gripping type fixing, so that the supporting surface 232 can be in contact with the lower surface of the bone block, the contact area of the supporting surface 232 is larger, the supporting surface can be better in contact with the lower surface of the bone block, the gripping type stabilizing is ensured, and the intramedullary and extramedullary double fixing is formed.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a collude needle and bone plate combination fixing system which characterized in that: the combined fixing system of the hook needle and the bone fracture plate comprises a base component and two hook needle components arranged on the base component, the hook needle components comprise a plurality of hook needles arranged on the base component, the hook needles are of arc structures and are oriented to the other hook needle components, one ends of the hook needles are inserted on the base component, the other ends of the hook needles are provided with sharp insertion ends, the insertion ends are composed of three planes and comprise two insertion surfaces and a supporting surface, the supporting surface is positioned at the position of the insertion ends oriented to the base component, each of the supporting surfaces of the hook needles is oriented to the center of the lower base and the upper base, the area of each supporting surface is larger than that of the insertion surface, the supporting surface extends to the bending position of the hook needle, and the included angle between the planes of the two insertion surfaces is larger than that between the insertion surfaces and the supporting surface.
2. The hook needle and bone plate combination fixation system of claim 1, wherein: the base assembly comprises a lower base, an upper base arranged on the lower base and a plurality of connecting pieces for connecting the lower base and the upper base.
3. The hook needle and bone plate combination fixation system of claim 1, wherein: the lower base comprises a lower base body, a first sawtooth section arranged on the lower base body, a plurality of threaded holes arranged on the lower base body, a plurality of first jacks arranged on the lower base body, and a plurality of second jacks arranged on the lower base body.
4. The hook needle and bone plate combination fixation system of claim 3, wherein: the first jack is positioned on the side wall of the lower base body, the second jack is communicated with the first jack, and the central shafts of the second jack and the first jack are mutually perpendicular.
5. The hook needle and bone plate combination fixation system of claim 3, wherein: the upper base comprises an upper base body, a second sawtooth section arranged on the upper base body, a plurality of through holes arranged on the upper base body, a plurality of third jacks arranged on the upper base body and a plurality of fourth jacks arranged on the upper base body.
6. The combined hook needle and bone plate fixation system of claim 5, wherein: the third jack is positioned on the side wall of the upper base body, the fourth jack is communicated with the third jack, and the central shafts of the fourth jack and the third jack are mutually perpendicular.
7. The combined hook needle and bone plate fixation system of claim 5, wherein: the second sawtooth section is located on the end face of the upper base, which faces the lower base, and the first sawtooth section and the second sawtooth section are meshed with each other.
8. The combined hook needle and bone plate fixation system of claim 5, wherein: the through hole is in a rounded rectangle, and the lengths of the two ends of the through hole are larger than the distance between the two threaded holes.
9. The combined hook needle and bone plate fixation system of claim 5, wherein: the needle hooking component further comprises a plurality of fixing plugs arranged on the needle hooking, and the fixing plugs are respectively arranged in the second jack and the fourth jack and press one end of the needle hooking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410273083.5A CN118044865A (en) | 2024-03-11 | 2024-03-11 | Combined fixing system for hook needle and bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410273083.5A CN118044865A (en) | 2024-03-11 | 2024-03-11 | Combined fixing system for hook needle and bone fracture plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118044865A true CN118044865A (en) | 2024-05-17 |
Family
ID=91051459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410273083.5A Pending CN118044865A (en) | 2024-03-11 | 2024-03-11 | Combined fixing system for hook needle and bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118044865A (en) |
-
2024
- 2024-03-11 CN CN202410273083.5A patent/CN118044865A/en active Pending
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