CN116077165A - Novel self-binding bone fracture plate for fixing chest rib fracture - Google Patents
Novel self-binding bone fracture plate for fixing chest rib fracture Download PDFInfo
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- CN116077165A CN116077165A CN202211722537.XA CN202211722537A CN116077165A CN 116077165 A CN116077165 A CN 116077165A CN 202211722537 A CN202211722537 A CN 202211722537A CN 116077165 A CN116077165 A CN 116077165A
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- Prior art keywords
- plate
- deformation
- novel self
- fixing
- binding
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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
- 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
- A61B17/8076—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 for the ribs or the sternum
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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
- 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
Abstract
The invention relates to the technical field of novel medical equipment, in particular to a novel bone fracture plate for self-binding and fixing chest rib fracture, which comprises an upper fixing plate, a lower binding plate and locking screws, wherein the long side of the upper fixing plate is at least symmetrically provided with two groups of through holes, the two side surfaces of the long side of the upper fixing plate are at least symmetrically provided with two groups of fixing grooves, a notch is arranged on each fixing groove, the lower binding plate is arranged in each fixing groove, the lower binding plate comprises a deformation part and a hook part, the middle part of the deformation part is provided with a deformation space, the middle part of the deformation part is provided with threaded holes coaxial with the through holes, the hook parts are symmetrically fixed on the two sides of the deformation part, the locking screws downwards penetrate through the through holes and are connected with the bones and the lower binding plate to force the deformation part to deform and drive the hook parts to downwards rotate so as to clamp and connect the bones, no additional equipment is needed in the implantation process, and the lower binding plate is locked by the screws to generate extrusion resistance with the upper fixing plate so as to realize the deformation of the lower binding plate to encircle the rib and the two ends of the broken bones.
Description
Technical Field
The invention relates to the technical field of novel medical instruments, in particular to a novel self-binding bone fracture plate for fixing chest rib fracture.
Background
Modern medicine is used to treat fractures, and doctors are quite familiar with internal fixation techniques. For chest rib fracture, an internal fixation bone plate system is generally adopted, and bones at two ends of a fracture part are fixed by bone plates and screws, so that the bone reconstruction is facilitated for a human body, and the health is recovered. Internal fixation of chest ribs often causes failure conditions such as loosening and loosening of screws of a fixing steel plate, so that auxiliary fixation is needed in other modes besides screw fixation.
Some existing bone plates are bundled by cables, and some are claw-type designs. The claw-type bone fracture plate is usually bent by adopting instruments in the operation process to encircle bones for auxiliary fixation, so that a large-area operation is required to be performed on a patient, the rapid postoperative recovery of the patient is not facilitated, the requirements of a doctor on operation implementation are higher by using multiple instruments, and the difficulty and the danger of the operation are increased.
In summary, in order to solve the defects in the prior art, a novel bone plate for self-binding fixation of chest rib fracture needs to be designed to solve the above technical problems.
Disclosure of Invention
The invention provides a novel self-binding bone fracture plate for fixing chest rib fracture, which solves the problems in the prior art.
The aim of the invention can be achieved by the following technical scheme: a novel self-binding bone plate for fixing chest rib fracture, comprising: go up fixed plate, bind board and locking screw down, the long limit symmetry of going up the fixed plate is provided with two sets of through-holes at least, the long limit both sides face symmetry of going up the fixed plate is equipped with two sets of fixed slots at least, be equipped with a breach on the fixed slot, bind the board down and set up in the fixed slot, bind the board down and include deformation portion and crotch portion, deformation portion middle part has deformation space, deformation portion middle part is equipped with the screw hole coaxial line with the through-hole, crotch portion symmetry is fixed in deformation portion both sides, locking screw passes through-hole threaded connection skeleton downwards and binds the board and force deformation portion deformation and drive crotch portion downward rotation joint connection skeleton down.
Further improvement, deformation portion cross-section is the V-arrangement, crotch portion passes through arc connecting portion and connects in deformation portion both ends, arc connecting portion are located the fixed slot.
Further improvement, the through hole is provided with four groups, the long side face of the fixing groove on the upper fixing plate is provided with four groups, and the axial lead of each group of fixing groove and the axial lead of the corresponding through hole are positioned on the same plane.
Further improved, the size of the notch opening is reduced along the direction that the lower binding plate is pushed into the fixing groove.
Further improvement, the opening radian beta of the hook part is 110-150 degrees, and the opening distance L between the hook part and the deformation part is 3.5-7 mm.
Further, the notch openings of the symmetrically arranged fixing grooves are oppositely arranged, and the notch openings are all arranged towards the outer side of the long side of the upper fixing plate.
Further improvement, the through hole is a conical countersunk through hole, and a countersunk head part is arranged at the top of the locking screw.
Compared with the prior art, the novel self-binding bone fracture plate for fixing chest rib fracture has the beneficial effects that:
according to the bone fracture plate implantation method, extra instruments are not needed in the process of implanting the bone fracture plate, the built-in lower binding plate is locked only through screws due to specific structural characteristics, the lower binding plate is extruded and counteracted with the upper fixing plate by screw traction force to achieve automatic deformation, the lower binding plate deforms to encircle the ribs and the two ends of the broken bones are fixed by the upper fixing plate, the connection stability between the bone fracture plate and the bones is ensured, failure phenomena such as loosening of the bone fracture plate are prevented, and the bone fracture plate implantation method is more convenient and safer than the existing bone fracture plate implantation method; the wound to the patient is very small, the patient is greatly helped to improve the time of postoperative recovery, and the pain is relieved.
Drawings
FIG. 1 is a schematic view of a bone plate and bone to be fractured prior to locking of the screw of the present invention
FIG. 2 is a schematic diagram of the front view of FIG. 1
FIG. 3 is a schematic view showing the structure of the bone plate and the bone to be fractured locked
FIG. 4 is a schematic view of the cross-sectional view of FIG. 3
FIG. 5 is a schematic view of the structure of the lower binding plate of the present invention
FIG. 6 is a schematic view of the structure of the upper fixing plate of the present invention
In the figure, the upper fixing plate 1, the through hole 11, the fixing groove 12, the notch 13, the lower binding plate 2, the deformation part 21, the bent hook part 22, the threaded hole 23, the arc-shaped connecting part 24, the locking screw 3, the sinking head 31 and the bone 4 are shown.
Detailed Description
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the invention is further described below with reference to the examples and the accompanying figures 1-6.
Example 1
A novel self-binding bone plate for fixing chest rib fracture, comprising: the fixing device comprises an upper fixing plate 1, a lower binding plate 2 and locking screws 3, wherein two groups of through holes 11 are at least symmetrically arranged on the long side of the upper fixing plate 1, two groups of fixing grooves 12 are at least symmetrically arranged on the two side surfaces of the long side of the upper fixing plate 1, a notch 13 is formed in each fixing groove 12, the lower binding plate 2 is arranged in each fixing groove 12, the lower binding plate 2 comprises a deformation portion 21 and a hook portion 22, a deformation space is formed in the middle of the deformation portion 21, threaded holes 23 coaxial with the through holes 11 are formed in the middle of the deformation portion 21, the hook portions 22 are symmetrically fixed on two sides of the deformation portion 21, the locking screws 3 penetrate downwards through the through holes 11 to be connected with bones in a threaded mode, and the lower binding plate 2 forces the deformation portion 21 to deform and drive the hook portions 22 to rotate downwards to be clamped and connected with the bones.
The upper fixing plate 1 is made of stainless steel, the elastic modulus is about 200GPa, the lower binding plate 2 is made of pure titanium, the elastic modulus is about 108GPa, both materials meet the requirement of biocompatibility, the advantages of the two materials can be reflected in the matching process, different materials are selected for combination, the stainless steel fixing plate is strong in deformation resistance, the pure titanium binding plate has certain plasticity, the fixing capability of the fixing plate is maintained in the locking process, and the binding plate is easy to deform to bind chest ribs.
The installation process of the invention comprises the following steps: the upper fixing plate 1 is placed on the bone 4 to be fractured, through holes are pre-drilled on the bone 4 to be fractured according to the positions of the through holes 11 of the upper fixing plate 1, and the upper fixing plate 1 is retrieved; the lower binding plate 2 is arranged along the notch 13 of the plate fixing groove 12 of the upper fixing plate 1, the threaded hole 23 of the lower binding plate 2 is aligned with a pre-drilled through hole on the bone to be fractured, the locking screw 3 is screwed into the threaded hole 23 of the lower binding plate 2 through the through hole 11 of the upper fixing plate 1, the locking screw 3 is continuously screwed into the locking screw 3, the nut of the locking screw 3 is pressed against the upper fixing plate 1 at the same time when the locking screw 3 is screwed into the bone, the upper fixing plate 1 is extruded to resist the lower binding plate 2, the lower binding plate 2 is gradually deformed under the pressure of the upper fixing plate 1 in the screwing process of the screw, the deformation part 21 in the middle of the lower binding plate 2 is flattened to be 'one', the locking screw 3 is screwed to the deformation of the lower binding plate at the end point to enable the hooks 22 on two sides to encircle the bone to clamp the bone, the auxiliary fixing is realized, the steps are repeated again, and the locking screw 3 on the other bone is connected with the other group of lower binding plates 2 to be auxiliary fixed.
The doctor only needs to lock the screw at the appointed position, the built-in lower binding plate is extruded by the screw traction force and the upper fixing plate to deform due to the specific structural characteristics, so that the lower binding plate can encircle the rib, the auxiliary fixing effect is achieved, and the two ends of the broken bone are fixed and corrected, so that the effect of treating the fracture is achieved; the structure solves the problems that large instruments need to be used for entering the body in the chest rib operation process, the operation suture is enlarged, the operation wound is reduced, and the like, and meanwhile, the operation difficulty of doctors is reduced.
As a further preferred embodiment, the cross section of the deformation portion 21 is V-shaped, the hook portion 22 is connected to two ends of the deformation portion 21 through an arc connection portion 24, the arc connection portion 24 is located in the fixing groove 12, an opening radian β of the hook portion 22 is 110 ° to 150 °, and a mouth opening distance L between the hook portion 22 and the deformation portion 21 is 3.5 to 7mm. The opening radian of 110-150 degrees and the opening distance of 3.5-7 mm can meet the requirements of different crowds, and the rib fracture at different positions is fixed, so that the application range and the practicability are increased.
As a further preferred embodiment, the through holes 11 are provided with four groups, the side surface of the long side of the upper fixing plate 1, which is provided with four groups, of the fixing grooves 12, the axis of each group of fixing grooves 12 is on the same plane with the axis of the corresponding through hole 11, the opening directions of the symmetrically arranged notches 13 of the fixing grooves 12 are opposite, and the openings of the notches 13 are all arranged towards the outer side of the long side of the upper fixing plate 1. The single skeleton is connected through two groups of locking screws 3 and the two groups of lower binding plates 2 are fixed in an auxiliary mode, and the overall connection firmness is further improved. Meanwhile, the openings are arranged towards the outer side of the long side of the upper fixing plate 1, so that the lower binding plate 2 is inserted from outside to inside, and convenience is improved.
As a further preferable embodiment, the opening size of the notch 13 is reduced in the direction in which the lower binding plate 2 is pushed into the inside of the fixing groove 12. The notch 13 is designed as a conical bevel opening, so that the lower binding plate 2 is convenient to mount, and the lower binding plate 2 is prevented from sliding out after being mounted.
As a further preferred embodiment, the through hole 11 is a conical countersunk through hole, the top of the locking screw 3 is provided with a countersunk head part 31, the countersunk head part 31 at the end part of the locking screw 3 penetrates into the upper part of the conical countersunk through hole, and a zero notch locking structure is formed in a combined way, so that the irritation to surrounding tissues after implantation is greatly reduced.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (7)
1. A novel self-binding bone plate for fixing chest rib fracture, which is characterized by comprising: go up fixed plate, bind board and locking screw down, the long limit symmetry of going up the fixed plate is provided with two sets of through-holes at least, the long limit both sides face symmetry of going up the fixed plate is equipped with two sets of fixed slots at least, be equipped with a breach on the fixed slot, bind the board down and set up in the fixed slot, bind the board down and include deformation portion and crotch portion, deformation portion middle part has deformation space, deformation portion middle part is equipped with the screw hole coaxial line with the through-hole, crotch portion symmetry is fixed in deformation portion both sides, locking screw passes through-hole threaded connection skeleton downwards and binds the board and force deformation portion deformation and drive crotch portion downward rotation joint connection skeleton down.
2. The novel self-binding chest rib fracture fixation bone fracture plate according to claim 1, wherein the cross section of the deformation part is V-shaped, the bent hook part is connected to two ends of the deformation part through arc-shaped connecting parts, and the arc-shaped connecting parts are located in the fixing grooves.
3. The novel self-binding chest rib fracture fixation bone fracture plate according to claim 1, wherein four groups of through holes are formed, four groups of fixing grooves are formed in the long side face of the upper fixing plate, and the axial lead of each group of fixing grooves is located on the same plane with the axial lead of the corresponding through hole.
4. The novel self-binding chest rib fracture fixation bone plate according to claim 1, wherein the size of the notch opening is reduced along the direction that the lower binding plate is pushed into the fixing groove.
5. The novel self-binding chest rib fracture fixation bone fracture plate according to claim 2, wherein the opening radian beta of the hook part is 110-150 degrees, and the opening distance L between the hook part and the deformation part is 3.5-7 mm.
6. A novel self-binding chest rib fracture fixation bone plate according to claim 3, wherein the notch openings of the symmetrically arranged fixing grooves are oppositely arranged, and the notch openings are all arranged towards the outer side of the long side of the upper fixing plate.
7. The novel self-binding chest rib fracture fixation bone plate according to claim 1, wherein the through hole is a conical countersunk through hole, and a countersunk head part is arranged at the top of the locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211722537.XA CN116077165A (en) | 2022-12-30 | 2022-12-30 | Novel self-binding bone fracture plate for fixing chest rib fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211722537.XA CN116077165A (en) | 2022-12-30 | 2022-12-30 | Novel self-binding bone fracture plate for fixing chest rib fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116077165A true CN116077165A (en) | 2023-05-09 |
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ID=86200391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211722537.XA Pending CN116077165A (en) | 2022-12-30 | 2022-12-30 | Novel self-binding bone fracture plate for fixing chest rib fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116077165A (en) |
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2022
- 2022-12-30 CN CN202211722537.XA patent/CN116077165A/en active Pending
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