CN106963470A - A kind of minimally invasive replacement and fixation system of pelvis - Google Patents
A kind of minimally invasive replacement and fixation system of pelvis Download PDFInfo
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- CN106963470A CN106963470A CN201710220223.2A CN201710220223A CN106963470A CN 106963470 A CN106963470 A CN 106963470A CN 201710220223 A CN201710220223 A CN 201710220223A CN 106963470 A CN106963470 A CN 106963470A
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- inner sleeve
- pelvis
- elbow
- minimally invasive
- outer tube
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1666—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the acetabulum
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8897—Guide wires or guide pins
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The present invention relates to a kind of minimally invasive replacement and fixation system of pelvis, the system at least includes assembled casing, straight peen probe and elbow bradawl；Assembled casing is made up of outer tube and several inner sleeves being inserted in outer tube, and the pipe diameter size of several inner sleeves is differed, and can be successively socketed to small order by caliber is big, and tube wall is provided with Handheld Division on the outside of the outer end of the outer tube；The inserting end end of straight peen probe is provided with spherical propulsion end, maximum radial length long 0.1 0.5mm of the bore than the straight peen probe inserting end of an inner sleeve；The inserting end end of elbow bradawl is provided with to the elbow of curving and promotes end, maximum radial length long 0.1 0.8mm of the bore than the elbow bradawl inserting end of an inner sleeve.The fixed system has simple to operate, and it is convenient to finely tune, and perceptibility is strong, the good advantage of protection soft tissue effect.
Description
Technical field
The present invention relates to medical instruments field, and in particular to a kind of pelvis applied to pelvis acetabular bone and fracture is minimally invasive to be resetted
The application method of fixed system and the system.
Background technology
After being fractured at pelvis, progress operative reduction and interior fixation are generally required, it is multiple that current minimal invasive techniques implement closure
It is fixed in the cannulated screws of position, specific method to insert hollow nail guide pin first, after be screwed into screw along guide pin；But the bone of human body
Basin has extremely complex 3 D anatomy structure, and surrounding soft tissue is abundant, percutaneously puts nail depth greatly, puts pin operating difficulties, therefore,
The ideal position that can guide pin be smoothly penetrated in bone is the key of operation success or failure.
At present, the minimally invasive replacement and fixation medical procedure of pelvis includes the minimally invasive interior fixation of computer navigation subpelvic and camber line pin skill
Art (or caput medusae technology).But both approaches have under some shortcomings, such as computer navigation in popularization and implementation process
The defect of the minimally invasive internal fixation method of pelvis is：1st, expensive, only a small number of Grade A hospitals are had ready conditions purchase；2nd, learning curve
Long, technical requirements are high；3rd, after injecting, patient can not have movement, otherwise put nail and skew occurs；4th, screw still cuts out etc. concurrent
Disease；5th, operating time is long.
And for example the defect of camber line pin technology is：1st, guide pin is because will be by hollow nail, relatively thin, too soft, traveling process
In be easily bent, cause hollow screw to pass through difficulty；2nd, guide pin is thinner and softer, is easily bent in traveling process, also causes it
Because the stop of bone passage when being advanced in bone passage, it is difficult to make guide pin be rotated according to the direction of operation；3rd, the method is
External handle is tapped and inserted, it is impossible to perceive whether there is breakthrough cortex of bone with feel；4th, because of caput medusae guide pin bent at its tip, cause hollow
Nail can not be screwed into guide pin leading edge, and guide pin, when being exited by hollow nail, leading edge knee is easily snapped off.
For above-mentioned technical problem, existing patent CN103239285A discloses a kind of minimally invasive pelvic fracture and percutaneously puts nail group
Conjunction instrument, including sleeve pipe, straight peen probe and elbow probe, described sleeve pipe end are sharp, constitute a tip.Tip can make set
Pipe is accurately positioned in the smooth bone inclined-plane of pelvis, it is possible to drilling is finely adjusted as needed, and most suitable nail is put to choose
Position, when the stray of straight peen probe, run into cortex bone and stop or wear out cortex bone accidentally when, using elbow probe instead can be with
Prevent from promoting end to fall into original screw way.But the technology still suffers from above mentioned problem, and such as straight peen probe and elbow probe body are thin
Still it is easily bent, it is difficult to be rotated according to the direction of operation, makes in long solid cylindrical, diameter 2mm or 2.5mm, traveling process
It must adjust and be inaccurate.In addition, in whole surgical procedure, the respective sleeve for not adapting to whole process is carried out to body tissue
Protection.
The content of the invention
It is an object of the invention to overcome defect of the prior art, design is a kind of to be applied to pelvis acetabular bone and the bone of fracture
The minimally invasive replacement and fixation system of basin, the fixed system has simple to operate, and it is convenient to finely tune, and perceptibility is strong, and protection soft tissue effect is good
Advantage.
To achieve the above object, the technical solution adopted in the present invention is a kind of minimally invasive replacement and fixation system of pelvis, described
System at least includes assembled casing, straight peen probe and elbow bradawl；
The assembled casing is made up of outer tube and several inner sleeves being inserted in outer tube, several described inner sleeves
The pipe diameter size of pipe is differed, and can be successively socketed by the big extremely small order of caliber, tube wall on the outside of the outer end of the outer tube
It is provided with Handheld Division；
The inserting end end of the straight peen probe is provided with spherical propulsion end, and the bore of inner sleeve described in one is than the straight peen
The long 0.1-0.5mm of maximum radial length of probe inserting end；
The inserting end end of the elbow bradawl is provided with to the elbow of curving and promoted in end, the pipe of inner sleeve described in one
Maximum radial length long 0.1-0.8mm of the footpath than the elbow bradawl inserting end.
Tube wall is provided with circular base on the outside of wherein preferred scheme, the outer end of the outer tube, and the Handheld Division is along ring
Shape pedestal radially extends the long handle construction of rear outward bending.
Wherein preferred scheme, each inner sleeve is equipped with the limited block located at body end；Any two is nested
In the inner sleeve connect, external diameter big 0.1-0.5mm of the internal diameter than the inner sleeve of inner side of the inner sleeve in outside；The outer tube it is interior
External diameter big 0.1-0.5mm of the footpath than outermost inner sleeve；In the inner sleeve socket-connected, the outer path length of the limited block is than socket
In the big 2-5mm of the caliber of the inner sleeve of its outer wall.
Further, the outer tube and several inner sleeves are mutually socketed after combination, outermost inner sleeve it is spacing
Block exposes to overcoat pipe end just, and the limited block side of the inner sleeve pipe end offsets successively.
Further, the outer tube and several inner sleeves are mutually socketed after combination, the front end point of the inner sleeve
Do not stretch out in outside the outer tube on the outside of its socket or inner sleeve.
In another preferred scheme, the elbow bradawl is the stock construction being gradually reduced from end to point diameter, its
Stock end is provided with hand holding handle.It is preferred that, the maximum of the long shank diameter of the elbow bradawl is 4.5mm, and minimum value is 2mm；
The elbow promotes the maximum radial length at end to be 4.2mm
In another preferred scheme, the stock construction that the straight peen probe is gradually reduced from end to point diameter, it is grown
Bar end is provided with Handheld Division.It is preferred that, a length of 190-210mm of stock of the straight peen probe；The stock of the straight peen probe is straight
The maximum in footpath is 3.5mm, and minimum value is 1.5mm；The bulb diameter at the spherical propulsion end is 2.5mm
The minimally invasive replacement and fixation system of pelvis of the present invention has the following advantages that compared to prior art：
(1) apparatus in replacement and fixation system is simple, and cost of manufacture is cheap so that complicated pelvis acetabular bone and fractures
Simplify；
(2) use of the apparatus is without very long learning curve, and technical requirements are low, reduces to operation clinical experience doctor
Requirement, related surgical is also carried out in basic hospital；
(3) during instrumentation of the present invention, reduce to patient compliance's degree, it is allowed to which patient has fine motion in surgical procedure,
And the ease of Use feature of apparatus shortens operating time；
(4) replacement and fixation system of the present invention in operation, by the cooperation of assembled casing and other each apparatuses, can be carried
The precision of height positioning, preferably protects soft tissue；
(5) elbow bradawl and straight peen probe stock construction from coarse to fine, make it have enough intensity, hollow opening
During nail channel, well passage can be avoided to bend；Convenience during fine setting positioning is improved simultaneously, is excluded bone and is stopped；
(6) hand-held of each apparatus is promoted in replacement and fixation system, can preferably perceive apparatus whether there is breakthrough cortex of bone,
Make operation technique safe and reliable；
(7) convenience of the more casing replacing of assembled casing so that when passage is opened, can will open the device of its passage easily
Tool is converted into guide pin, and hollow screw is being inserted by guide pin.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the outer tube of the minimally invasive replacement and fixation system of pelvis；
Fig. 2 is the diagrammatic cross-section of the inner sleeve 11 of the minimally invasive replacement and fixation system of pelvis；
Fig. 3 is the diagrammatic cross-section of the inner sleeve 12 of the minimally invasive replacement and fixation system of pelvis；
Fig. 4 is the diagrammatic cross-section of the inner sleeve 13 of the minimally invasive replacement and fixation system of pelvis
Fig. 5 is the combining structure schematic diagram of the assembled casing of the minimally invasive replacement and fixation system of pelvis；
Fig. 6 is the combining structure front view of the assembled casing of the minimally invasive replacement and fixation system of pelvis；
Fig. 7 is the structural representation of the elbow bradawl of the minimally invasive replacement and fixation system of pelvis；
Fig. 8 is the structural representation of the straight peen probe of the minimally invasive replacement and fixation system of pelvis.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and it can not be limited the scope of the invention with this.
The a kind of of the present invention is applied to the minimally invasive replacement and fixation system of the pelvis of pelvis acetabular bone and fracture, and the system is at least wrapped
Include assembled casing 1, straight peen probe 2 and elbow bradawl 3.The assembled casing 1 is by outer tube 10 and is inserted in outer tube 10
Several inner sleeves 11,12,13 are constituted, and the pipe diameter size of several inner sleeves 11,12,13 is differed, and can be by pipe
Footpath is big to be socketed successively to small order, and tube wall is provided with Handheld Division 101 on the outside of the outer end of the outer tube 10.What this was socketed successively
Construction makes it in surgical procedure, and compounding practice is carried out according to the corresponding sleeve pipe of the different apparatuses of operating procedure correspondence.
The inserting end end of the straight peen probe 2 is provided with spherical propulsion end 20, and the bore of inner sleeve described in one is than described
The long 0.1-0.5mm of maximum radial length of the inserting end of straight peen probe 2；Make straight peen probe 5 when stretching into inner sleeve, ensure that it can edge
Circuits footpath is kept straight on, and will not be shifted.The inserting end end of the elbow bradawl 3 is provided with to the elbow of curving and promoted
End 30, maximum radial length long 0.1-0.8mm of the bore than the inserting end of elbow bradawl 3 of inner sleeve described in one；Make curved
Head bradawl 3 ensures that it can keep straight on along circuits footpath, and will not shift when stretching into inner sleeve.
Fig. 1 is shown outside the construction of the outer tube 10 of the minimally invasive replacement and fixation system of pelvis of the present invention, the outer tube 10
End outside tube wall is provided with circular base 100, and the Handheld Division 101 is the length that rear outward bending is radially extended along circular base 100
Handle is constructed.Angle between the bending segment axis of Handheld Division 101 and the axis of the outer tube sleeve 10 is 120-135 °, is preferably
127°。
In the embodiment of the present invention, each inner sleeve is equipped with the limited block located at body end.Specifically, inner sleeve
Quantity be 3, the body end of Fig. 2 inner sleeve 11 is provided with limited block 111；The body end of Fig. 3 inner sleeve 12 is provided with
Limited block 121；The body end of Fig. 4 inner sleeve 13 is provided with limited block 131.
In the inner sleeve socket-connected, the external diameter big 0.1-0.5mm of the internal diameter of inner sleeve 11 than inner sleeve 12 in outside；Outside
External diameter big 0.1-0.5mm of the internal diameter of inner sleeve 12 than inner sleeve 13；The internal diameter of the outer tube 10 is than outermost inner sleeve
The 11 big 0.1-0.5mm of external diameter.
In the inner sleeve socket-connected, the caliber for the inner sleeve 11 that the outer fineness ratio of the limited block 121 is socketed on its outer wall is big
2-5mm.The outer fineness ratio of the limited block 131 is socketed on the big 2-5mm of caliber of the inner sleeve 12 of its outer wall.
As seen in figs. 5-6, it is outermost interior after the mutually socket combination of the outer tube 10 and 3 inner sleeves 11,12,13
The limited block 111 of sleeve pipe 11 exposes to the end of outer tube 10 just, and the side of limited block 111 offsets with the side of limited block 121, spacing
The opposite side of block 121 offsets with the side of limited block 131.In a further preferred embodiment, the front end of the inner sleeve 11 point
Do not stretch out in outside the outer tube 10 on the outside of its socket, the inner sleeve that the front end of the inner sleeve 12 is stretched out on the outside of its socket respectively
Outside 11, the front end of the inner sleeve 13 is stretched out in outside the inner sleeve 12 on the outside of its socket respectively.
Above-described embodiment of assembled casing 1 of the present invention is described as the citing description of the present invention, and wherein inner sleeve quantity is citing
It is preferred that, and not exclusive restriction；The numerical values recited gap of casing inner diameter external diameter pull and can not rocked in its realization mutually socket
On the basis of be adjusted, be not specifically limited；Limited block external diameter size can carry out reality based on it mutually be supported with adjacent limited block
The adjustment of border numerical value.In following specific embodiments, preferable examples are carried out to each sleeve pipe of assembled casing 1.
The quantity of inner sleeve of the present invention is 3, and by outer to the interior order of socket relation, the external diameter of the inner sleeve 11 is a length of
14.8mm, interior path length 8.5mm；The a length of 8.3mm of external diameter of inner sleeve 12, a length of 5mm of internal diameter；The external diameter of inner sleeve 13 is a length of
4.8mm, a length of 2.8mm of internal diameter.The a length of 18mm of external diameter of the outer tube 10, a length of 15mm of internal diameter.
Fig. 7 shows the structure of the elbow bradawl 3 of the minimally invasive replacement and fixation system of pelvis of the present invention.The elbow bradawl 3 is
The stock construction being gradually reduced from end to point diameter, its stock end is provided with hand holding handle 31.Hand holding handle 31 is preferably annular
Stock is constructed.In a particularly preferred embodiment, a length of 190-210mm of stock of the elbow bradawl 3；The elbow bradawl 3
Long shank diameter maximum be 4.5mm, minimum value is 2mm；The elbow promotes the maximum radial length at end 30 to be 4.2mm.
The elbow promotes the curved interior at end 30 to be additionally provided with a tangent plane, makes propulsion end Integral bending curved surface smoother, and tangent plane side is difficult
Slide.
Fig. 8 shows the structure of the straight peen probe 2 of the minimally invasive replacement and fixation system of pelvis of the present invention.The straight peen probe 2 is certainly
The stock construction that end to point diameter is gradually reduced, its stock end is provided with Handheld Division 21.In a particularly preferred embodiment,
The a length of 190-210mm of stock of the straight peen probe 2, a length of 90-100mm in the Handheld Division 21；The stock of the straight peen probe 2
The maximum of diameter is 3.5mm, and minimum value is 1.5mm；The bulb diameter at the spherical propulsion end 20 is 2.5mm.
The basic operation process of the minimally invasive replacement and fixation system of pelvis of the present invention is as follows：
1st, under C-arm perspective, bone entry point at pelvis acetabular bone is determined, under the protection of combined sleeve 1, with 2.8mm points
Cone is percutaneous in bone entry point opening；
2nd, the inner sleeve 13 of 2.8mm pointed cones and internal diameter for 2.8mm is taken out, elbow bradawl 3 is in the inner sleeve 12 that internal diameter is 5mm
Protection is lower to be entered at property opening to the marrow by soft tissue, and has an X-rayed the predetermined bone passage advance of lower edge in C-arm；
3rd, lower observation is had an X-rayed, if direct of travel, which deviates, estimates passage, bradawl handle 3 can be rotated, makes the curved of the tip of bradawl 3
Head promotes end 30, and dorsad offset direction continues to move ahead, then deviates can be corrected
4th, continue to move ahead, the adjustment direction of rotating hand handle 31 is allowed to recurrence and estimates passage if skew；
If the 5, fracture end has displacement, elbow can be adjusted and promote end 30 to be allowed to the Contralateral fracture end towards displacement, and with hand
Prize handle and assist reset, completed until resetting, the tip of elbow bradawl 3 enters Contralateral fracture end and continues to move ahead；
6th, into elbow bradawl 3 can be extracted out after the segment distance of fracture end offside one, entered with straight peen probe in passage and detected
This passage whether there is breakthrough cortex of bone.Again internal diameter is inserted in combined sleeve 1 and is 2.8mm inner sleeve 13, and sky is inserted along sleeve
The heart follows closely guide pin；
7th, selected to be adapted to the hollow nail of length according to measurement result, take out internal diameter 2.8mm inner sleeve 13 and internal diameter 5mm
Inner sleeve 12, by hollow nail along internal diameter for 8.5 inner sleeve along guide pin guiding under be screwed into；
8th, guide pin and sleeve are exited, is sewed up the incision.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of minimally invasive replacement and fixation system of pelvis, it is characterised in that the system at least includes assembled casing (1), straight peen and visited
Pin (2) and elbow bradawl (3)；
The assembled casing (1) is by outer tube (10) and several inner sleeve (11, the 12,13) structures being inserted in outer tube (10)
Into the pipe diameter size of several inner sleeves (11,12,13) is differed, and can successively be covered by the big extremely small order of caliber
Connect, tube wall is provided with Handheld Division (101) on the outside of the outer end of the outer tube (10)；
The inserting end end of the straight peen probe (2) is provided with spherical propulsion end (20), the bore ratio of inner sleeve described in one (13)
The long 0.1-0.5mm of maximum radial length of straight peen probe (2) inserting end；
The inserting end end of the elbow bradawl (3) is provided with to the elbow of curving and promotes end (30), inner sleeve described in one
(12) maximum radial length long 0.1-0.8mm of the bore than elbow bradawl (3) inserting end.
2. the minimally invasive replacement and fixation system of pelvis as claimed in claim 1, it is characterised in that outside the outer end of the outer tube (10)
Side pipe wall is provided with circular base (100), and the Handheld Division (101) is to radially extend rear outward bending along circular base (100)
Long handle is constructed.
3. the minimally invasive replacement and fixation system of pelvis pelvis as claimed in claim 2, it is characterised in that the Handheld Division (101) is curved
Angle between trisection axis and the axis of the outer tube sleeve (10) is 120-135 °, preferably 127 °.
4. the minimally invasive replacement and fixation system of pelvis as claimed in claim 1, it is characterised in that each inner sleeve (11,12,
13) it is equipped with the limited block (111,121,131) located at body end；
In the inner sleeve (11,12,13) that any two socket-connects, inner sleeve of the internal diameter than inner side of the inner sleeve (11,12) in outside
Manage the big 0.1-0.5mm of external diameter of (12,13)；The internal diameter of the outer tube (10) is bigger than the external diameter of outermost inner sleeve (11)
0.1-0.5mm；
In the inner sleeve (11,12,13) socket-connected, the outer path length of the limited block (121,131) is than being socketed in its outer wall
The big 2-5mm of caliber of sleeve pipe (11,12).
5. the minimally invasive replacement and fixation system of pelvis as claimed in claim 4, it is characterised in that the outer tube (10) and several
After inner sleeve (11,12,13) mutually socket combination, the limited block (111) of outermost inner sleeve (11) exposes to overcoat just
(10) end is managed, limited block (111, the 121,131) side of inner sleeve (11, the 12,13) end offsets successively.
6. the minimally invasive replacement and fixation system of pelvis as claimed in claim 5, it is characterised in that the outer tube (10) and several
After inner sleeve (11,12,13) mutually socket combination, the front end of the inner sleeve (11,12,13) stretches out in its socket outside respectively
Outer tube (10) or inner sleeve (11,12) outside.
7. the minimally invasive replacement and fixation system of pelvis as claimed in claim 4, it is characterised in that the inner sleeve (11,12,13)
Quantity is 3, by outer to the interior order of socket relation, the outer path length of the inner sleeve (11,12,13) be followed successively by 14.8mm,
8.3mm, 4.8mm, interior path length are followed successively by 8.5,5mm, 2.8mm；
The a length of 18mm of external diameter of the outer tube (10), a length of 15mm of internal diameter.
8. the minimally invasive replacement and fixation system of pelvis as claimed in claim 1, it is characterised in that the elbow bradawl (3) is from end
The stock construction being gradually reduced to point diameter is held, its stock end is provided with hand holding handle (31)；The elbow promotes end (30) curved
Bent side is provided with tangent plane.
9. the minimally invasive replacement and fixation system of pelvis as claimed in claim 1, it is characterised in that the stock of the elbow bradawl (3)
A length of 190-210mm；The maximum of the long shank diameter of the elbow bradawl (3) is 4.5mm, and minimum value is 2mm；The elbow is pushed away
The maximum radial length of inlet side (30) is 4.2mm.
10. the minimally invasive replacement and fixation system of pelvis as claimed in claim 1, it is characterised in that the straight peen probe (2) is from end
The stock construction being gradually reduced to point diameter, its stock end is provided with Handheld Division (21)；
The a length of 190-210mm of stock of the straight peen probe (2), a length of 90-100mm of the Handheld Division (21)；The straight peen is visited
The maximum of the long shank diameter of pin (2) is 3.5mm, and minimum value is 1.5mm；The bulb diameter of the spherical propulsion end (20) is
2.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220223.2A CN106963470A (en) | 2017-04-06 | 2017-04-06 | A kind of minimally invasive replacement and fixation system of pelvis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220223.2A CN106963470A (en) | 2017-04-06 | 2017-04-06 | A kind of minimally invasive replacement and fixation system of pelvis |
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| CN106963470A true CN106963470A (en) | 2017-07-21 |
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| CN201710220223.2A Pending CN106963470A (en) | 2017-04-06 | 2017-04-06 | A kind of minimally invasive replacement and fixation system of pelvis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875672A (en) * | 2019-03-26 | 2019-06-14 | 陈同林 | The minimally invasive combination of channels instrument of pelvis |
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| US5601550A (en) * | 1994-10-25 | 1997-02-11 | Esser; Rene D. | Pelvic pin guide system for insertion of pins into iliac bone |
| CN101002694A (en) * | 2005-12-20 | 2007-07-25 | 贺新宁 | Trans-vertebral arch pedicle type hollow vertebra centrum bone-grafting apparatus |
| US20160249940A1 (en) * | 2008-02-27 | 2016-09-01 | John G. Stark | Tools for performing less invasive orthopedic joint procedures |
| CN201719367U (en) * | 2010-06-10 | 2011-01-26 | 颜炳成 | Hollow screw percutaneous implantation and guiding device |
| CN202537646U (en) * | 2012-02-17 | 2012-11-21 | 刘少喻 | Metal pediculus arcus vertebrae spherical needle |
| CN103239285A (en) * | 2013-05-13 | 2013-08-14 | 张平 | Combined tool for percutaneous screw setting for minimally invasive pelvic fracture |
| CN104665920A (en) * | 2015-03-30 | 2015-06-03 | 蔡鸿敏 | Tool used for preparing screw channels for pelvis crista iliaca external fixator |
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| CN109875672A (en) * | 2019-03-26 | 2019-06-14 | 陈同林 | The minimally invasive combination of channels instrument of pelvis |
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