CN103654928A - Self-releasing-type internal fracture fixation system - Google Patents
Self-releasing-type internal fracture fixation system Download PDFInfo
- Publication number
- CN103654928A CN103654928A CN201310670048.9A CN201310670048A CN103654928A CN 103654928 A CN103654928 A CN 103654928A CN 201310670048 A CN201310670048 A CN 201310670048A CN 103654928 A CN103654928 A CN 103654928A
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- CN
- China
- Prior art keywords
- fixation system
- nail
- releasing
- self
- blade plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
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- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
Abstract
The invention belongs to the field of medical apparatus and instrument equipment, and relates to a main instrument used during a fracture surgery, in particular to a self-releasing-type internal fracture fixation system which comprises a bone setting plate. At least two screw holes are formed in the bone setting plate in a penetrating mode. A bone setting screw is connected into each screw hole. The self-releasing-type internal fracture fixation system is characterized in that a cushion layer is arranged on the bone setting plate, a screw sleeve is connected to a screw body of each bone setting screw, degradation and absorption biological materials can be implanted into the cushion layer, and degradation and absorption biological materials can be implanted into the screw sleeve. The self-releasing-type internal fracture fixation system is simple in structure and ingenious in concept, the problem that stress shielding and temperature transmission stimulation exist in an existing internal fixation system can be effectively solved, and meanwhile the self-releasing-type internal fracture fixation system can be conveniently disassembled after a fracture is healed.
Description
Technical field
The invention belongs to medical apparatus and instruments field, relate to a kind of main apparatus of use when carrying out fracture operation, specifically a kind of from the type fracture internal fixation system of loosening.
Background technology
When carrying out fracture operation, the internal fixation system that metal bone fracture plate and metal bone nail form, strong interior fixing is provided can to patient's fracture site, it is current widely used internal fixation system clinically, but in long-term use, find that this internal fixation system also exists a lot of defects, mainly: one, blade plate and bone nail are metallic article, carry out interior fixedly time, blade plate and bone nail all directly contact with bone and surrounding tissue, have larger thermal stimulus; Two, blade plate causes shunting to skeleton physiology stress, causes bone strength reduction, healing delay, and blade plate can cause stress shielding; Three, blade plate and bone nail embed in bone and surrounding tissue, after union of fracture, are unfavorable for the dismounting of blade plate and bone nail.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, ingenious, rational from the type fracture internal fixation system of loosening, this fixed system can gradually eliminate stress voluntarily and block and remove quickly and easily after union of fracture.
According to technical scheme provided by the invention: a kind of from the type fracture internal fixation system of loosening, comprise blade plate, on described blade plate, run through and be provided with at least two screw holes, described in each, in screw hole, be all connected with bone nail, it is characterized in that: described blade plate is provided with bed course, bone nail in use surface is connected with nail cover, and described bed course is implantable degraded and absorbed biomaterial bed course, and described nail cover is implantable degraded and absorbed biomaterial nail cover.
As a further improvement on the present invention, described bed course is by the whole or local parcel of blade plate.
As a further improvement on the present invention, described nail cover outer surface is provided with protruding texture.
As a further improvement on the present invention, described nail cover bottom outer circumference surface is uniform offers the bar-shaped trough that several extend vertically.
As a further improvement on the present invention, described nail cover outer surface is provided with protruding texture, and offers the bar-shaped trough that several extend vertically nail cover bottom outer circumference surface is uniform simultaneously.
Compared with prior art, advantage is in the present invention: product structure of the present invention is simple, be skillfully constructed, and can effectively avoid existing internal fixation system problems, the problem includes: stress shielding and temperature transfer stimulate problem, and this product is removed and facilitated after union of fracture simultaneously.
Accompanying drawing explanation
Fig. 1,2 is structural representation of the present invention.
Fig. 3,4,5 structural representations for nail cover.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Fig. 1 ~ 5, comprise blade plate 1, bone nail 2, nail cover 3, bed course 4, protruding texture 5, bar-shaped trough 6, bone 7 etc.
As shown in Fig. 1 ~ 5, the present invention is a kind of from the type fracture internal fixation system of loosening, comprise blade plate 1, on described blade plate 1, run through and be provided with at least two screw holes, described in each, in screw hole, be all connected with bone nail 2, described blade plate 1 is provided with bed course 4, and bone nail 2 in use surface is connected with nail cover 3, described bed course 4 is implantable degraded and absorbed biomaterial bed course, and described nail cover 3 is implantable degraded and absorbed biomaterial nail cover.
As shown in Figure 1 and Figure 2, described bed course 4 is by the whole or local parcel of blade plate 1, and blade plate 1 surface shown in Fig. 1 is all enveloped by bed course 4, and blade plate 1 lower surface shown in Fig. 2 is provided with one deck bed course 4.
As shown in Figure 4, described nail overlaps 3 outer surfaces and is provided with protruding texture 5, and this projection texture 5 can be for the decorative pattern on protruding aperture or outstanding nail cover 3 surfaces, so that increase frictional force.
As shown in Figure 3, described nail overlaps uniform several bar-shaped troughs extending vertically 6 that offers of 3 bottom outer circumference surfaces, by bar-shaped trough 6 to produce expansion swelling effect.
As shown in Figure 5, described nail overlaps 3 outer surfaces and is provided with protruding texture 5, and simultaneously at uniform several bar-shaped troughs extending vertically 6 that offers of nail cover 3 bottom outer circumference surfaces.
Product structure of the present invention is simple, be skillfully constructed, by 4 layers of the bed courses made by implantable degraded and absorbed biomaterial are set on existing blade plate 1 surface, and the nail cover 3 of being made by implantable degraded and absorbed biomaterial is set in bone nail rivet nut, form new internal fixation system; This internal fixation system has following characteristics: the intensity both with peg, plate, can meet clinical interior fixing needs, again can be by the degraded and absorbed gradually of implantable degraded and absorbed biomaterial, progressively become flexible bone nail 2 and blade plate 1, thereby reach the object of absent-mindedness internal fixation system to eliminate stress gradually and to block, make union of fracture more firm; By bed course and nail cover isolation blade plate 1, bone nail 2 and bone and surrounding tissue, reducing temperature transfer stimulates, bed course 4 and nail cover 3 after by human body degraded and absorbed, can make bone nail 2 and blade plate 1 be difficult for embedding bone and surrounding tissue, are conducive to the dismounting of bone nail 2 and blade plate 1; The nail cover 3 of making due to implantable degraded and absorbed biomaterial and the intensity of bed course 4 are conventionally lower, can provide with the soft of tissue such as periosteum and contact, the blood that is conducive to fracture site supplies, simultaneously above-mentioned nail cover 3 and bed course 4 have certain elasticity, can make fracture end produce trickle activity stimulates, and promotes the formation of osteoblastic growth and callus.
Bed course 4 in product of the present invention and nail cover 3 by human implantable, can be made by the biomaterial of human body degraded and absorbed, the main biomaterial adopting is polylactic acid (PLLA), PLGA (PLGA), polylactide copolymer, PLGA etc. at present.
As shown in Figure 1 and Figure 2, this product in use, first punches respectively in the both sides at bone fracture position, then nail cover 3 is inserted in the hole of accomplishing fluently, and with bone nail 2, blade plate 1 is fixed on bone 7, specifically bone nail 2 revolves and establishes in nail cover 3, and nail cover 3 is tensioned in the hole of accomplishing fluently.
Claims (5)
1. one kind from the type fracture internal fixation system of loosening, comprise blade plate (1), on described blade plate (1), run through and be provided with at least two screw holes, described in each, in screw hole, be all connected with bone nail (2), it is characterized in that: described blade plate (1) is provided with bed course (4), bone nail (2) in use surface is connected with nail cover (3), and described bed course (4) is implantable degraded and absorbed biomaterial bed course, and described nail cover (3) is implantable degraded and absorbed biomaterial nail cover.
2. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: described bed course (4) is by the whole or local parcel of blade plate (1).
3. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: described nail cover (3) outer surface is provided with protruding texture (5).
4. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: uniform several bar-shaped troughs extending vertically (6) that offers of described nail cover (3) bottom outer circumference surface.
5. the type fracture internal fixation system of certainly loosening as claimed in claim 1, is characterized in that: described nail cover (3) outer surface is provided with protruding texture (5), and while uniform several bar-shaped troughs extending vertically (6) that offers of outer circumference surface bottom nail cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670048.9A CN103654928A (en) | 2013-12-10 | 2013-12-10 | Self-releasing-type internal fracture fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670048.9A CN103654928A (en) | 2013-12-10 | 2013-12-10 | Self-releasing-type internal fracture fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103654928A true CN103654928A (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310670048.9A Pending CN103654928A (en) | 2013-12-10 | 2013-12-10 | Self-releasing-type internal fracture fixation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103654928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420024A (en) * | 2016-08-31 | 2017-02-22 | 苏州西脉新诚生物科技有限公司 | Bone screw covered with soft material |
| CN112617995A (en) * | 2020-12-11 | 2021-04-09 | 中国人民解放军总医院 | Fracture repair device for realizing transition from mechanical fixation (AO) to biological fixation (BO) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1575161A (en) * | 1977-03-25 | 1980-09-17 | Merck Patent Gmbh | Sleeve for surgical nails |
| US4338926A (en) * | 1980-11-21 | 1982-07-13 | Howmedica, Inc. | Bone fracture prosthesis with controlled stiffness |
| EP0206767A2 (en) * | 1985-06-22 | 1986-12-30 | Surgicraft Limited | Bone fixation plates |
| US5108399A (en) * | 1988-09-17 | 1992-04-28 | Boehringer Ingelheim Gmbh | Device for osteosynthesis and process for producing it |
| CA2315490A1 (en) * | 2000-08-11 | 2002-02-11 | Terray Corporation | Bone plate |
| CN1442120A (en) * | 2003-04-11 | 2003-09-17 | 四川大学 | Surface active strong internal fixed titanium bone connection plate and its making method |
| CN201213835Y (en) * | 2008-05-20 | 2009-04-01 | 郁建华 | Biological activity absorbable fracture internal fixation device |
| CN203677226U (en) * | 2013-12-10 | 2014-07-02 | 徐斌 | Self-releasing internal fracture fixation system |
-
2013
- 2013-12-10 CN CN201310670048.9A patent/CN103654928A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1575161A (en) * | 1977-03-25 | 1980-09-17 | Merck Patent Gmbh | Sleeve for surgical nails |
| US4338926A (en) * | 1980-11-21 | 1982-07-13 | Howmedica, Inc. | Bone fracture prosthesis with controlled stiffness |
| EP0206767A2 (en) * | 1985-06-22 | 1986-12-30 | Surgicraft Limited | Bone fixation plates |
| US5108399A (en) * | 1988-09-17 | 1992-04-28 | Boehringer Ingelheim Gmbh | Device for osteosynthesis and process for producing it |
| CA2315490A1 (en) * | 2000-08-11 | 2002-02-11 | Terray Corporation | Bone plate |
| CN1442120A (en) * | 2003-04-11 | 2003-09-17 | 四川大学 | Surface active strong internal fixed titanium bone connection plate and its making method |
| CN201213835Y (en) * | 2008-05-20 | 2009-04-01 | 郁建华 | Biological activity absorbable fracture internal fixation device |
| CN203677226U (en) * | 2013-12-10 | 2014-07-02 | 徐斌 | Self-releasing internal fracture fixation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420024A (en) * | 2016-08-31 | 2017-02-22 | 苏州西脉新诚生物科技有限公司 | Bone screw covered with soft material |
| CN112617995A (en) * | 2020-12-11 | 2021-04-09 | 中国人民解放军总医院 | Fracture repair device for realizing transition from mechanical fixation (AO) to biological fixation (BO) |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |