CN106510832A - Needle inserting positioner for patellar fracture - Google Patents
Needle inserting positioner for patellar fracture Download PDFInfo
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- CN106510832A CN106510832A CN201611007373.7A CN201611007373A CN106510832A CN 106510832 A CN106510832 A CN 106510832A CN 201611007373 A CN201611007373 A CN 201611007373A CN 106510832 A CN106510832 A CN 106510832A
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- pieces
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- fixing tooth
- inserting needle
- localizer
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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
- A61B17/90—Guides therefor
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- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
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Abstract
The invention belongs to the field of medical apparatuses, and relates to a needle inserting positioner for fracture, in particular to a needle inserting positioner for patellar fracture. The needle inserting positioner comprises two L-shaped positioning sheets, namely a sheet A and a sheet B, wherein the sheet A and the sheet B are combined into a C-shaped structure; one end of the sheet A and one end of the sheet B are provided with opposite fixed teeth; a limiting groove is formed in the sheet A; the part, where the sheet A and the sheet B are connected, is provided with a latch; and the fixed teeth contain an X-light developing material. The needle inserting positioner is small in structure and is capable of taking a positioning effect on needle inserting for the patellar fracture; the patellar fracture, after being positioned by virtue of the positioner, is subjected to X-ray perspective, and a kirschner wire or a guide needle is implanted after it is confirmed that a position on a patellar anterioposterior and lateral film is good, so that the success rate of an operation is improved.
Description
Technical field
The invention belongs to medical instruments field, is related to a kind of fracture inserting needle localizer, more particularly to it is a kind of for patella bone
The inserting needle localizer of folding.
Background technology
Patella is located in front of knee joint, before the lower end of femur, is sesamoid bone maximum in human body, is embedded in stock market trend prediction
It is interior, it is the flat bone of triangle.Bottom upward, point downwards, before it is coarse, behind be smooth articular surface, the facies patellaris phase with femur
Joint, participates in kneed composition.Can touch in body surface.Patella has protection knee joint, it is to avoid stock market trend prediction is to condyle of femur
The function of cartilage surface friction, has the strength of transmission quadriceps femoris, participates in constituting Quadriceps mechanism function;There is maintenance knee joint in semi-crouch
The stability of position, prevents knee joint Overadduction, abduction and stretches the function of the activity of bending, and have blockchain to act on, increase knee joint
The function of cornering rate.
After Patella fracture, the first step of operation is the accurate reset of sclerite, and second step is to fix sclerite.In fixed bone
When folded block, generally require to use Kirschner wire(kirschner wire)Or sclerite is fixed together by hollow screw,
In order to ensure fixing intensity and fixed effect, Kirschner wire or guide pin(When being fixed using hollow screw, the first step is first to perforate
Pin, second step are to insert hollow nail along guide pin)There is certain requirement position in sclerite, such as, for simple two
Part Patella fracture, after the reset for completing sclerite, the position of Kirschner wire fixation typically requires the position for being in lower 1/3
(Parallel to articular surface);For complicated comminuted fracture, the fixation between little bone piece, the angle of inserting needle, direction have very much
Limit.Traditional surgical approaches are that doctor directly inserts Kirschner wire or guide pin with sensation by rule of thumb, are had an X-rayed again, if inserting needle after inserting needle
Position is bad, and needs pull out inserting needle again, and this not only causes unnecessary wound, extends operating time, brings pain to patient
It is bitter;Simultaneously for comminuted fracture patient, the fixation between little bone piece, the angle of inserting needle, direction are very limited, multiple inserting needle
Can cause to fix loosely, or even little sclerite further crushes the awkward final result that cannot be fixed.
The content of the invention
Problem to be solved:For problem above, the present invention provides a kind of inserting needle localizer for Patella fracture, is
A kind of medical apparatus and instruments, its structure are little, can play positioning action to the inserting needle of Patella fracture, are positioned using this device, then
Row X-ray examination, after confirming that position is good, then inserts Kirschner wire or guide pin, increase success rate of operation on patella anterioposterior and lateral film.
Technical scheme
A kind of inserting needle localizer for Patella fracture, including two " L " type spacers, respectively A pieces, B pieces, described A pieces
Combine to form " C " type structure with B pieces, described A pieces are provided with opposite fixing tooth with B pieces one end, and described A pieces are provided with stopper slot,
The described A pieces position that is connected with B pieces sets lock, and described fixing tooth contains developing material under X-ray.
Described lock can be latched for unidirectional retaining.After A piece B pieces are mutually combined, in stopper slot slip B pieces along
When two fixing tooths distance reduces direction motion, interception can not be latched, A pieces and B pieces are moved freely.When relative motion is stopped
Come, latch automatic locking, AB pieces can not be mutually shifted.When needing to move backward A pieces with B pieces, i.e., between fixing tooth, distance increases
Greatly, it is necessary to which pressing lock button, lock can be moved after unclamping.The lock is prior art.
Certainly the present invention is not necessarily using this kind of lock, as long as can play the lock of fixed AB pieces relative position can be with
Meet demand of the present invention.
Further, described fixing tooth end is zigzag.
Further, described fixing tooth is hollow needle tubulose.
Further, described fixing tooth is hollow needle tubulose, and needle tubing specification internal diameter specification has various, such as 2.7mm,
2.2mm, 1.7mm, 1.2mm, 1.0mm, to adapt to the diameter of various Kirschner wires and guide pin.
Further, the fixing tooth two ends of A pieces are respectively the first hole, and the second hole, the fixing tooth of B pieces are provided with the 3rd hole,
4th hole.The first described hole, the second hole, the fixing tooth two ends of B pieces are respectively the 3rd hole, and the 4th hole is circle, and described the
One hole center, the second hole center, the 3rd hole center, four points one line of center in the 4th hole.
Further, described fixing tooth, to develop under fluoroscopy, can be metal material.In addition to fixing tooth other
Part can be metal or nonmetallic.
Further, described AB is to be detachably connected.
Further, the described B pieces one end that is connected with A pieces is provided with scale, and described A pieces are provided with graduated scale.
Further, described graduated scale is located at fixing tooth the second hole orthographic projection at A pieces position, and described scale rises
Beginning one end is located at the 3rd hole orthographic projection of fixing tooth at B pieces position.Length so between graduated scale and scale is two admittedly
Determine the distance between tooth, i.e., the length of required guide pin.
Further, the A pieces are equipped with scale with B pieces two sides.
Using method of the present invention.
Median incision before conventional kneecap, exposes patella, and block reset of fracturing, AB pieces are combined by stopper slot, according to fracture feelings
Condition adjusts A pieces and B piece relative positions so that fixing tooth is needing fixed Patella fracture block two ends respectively, locks after fix stably
Upper lock, shoots anterioposterior and lateral film.After confirming that position is good, Kirschner wire or guide pin are by fixing tooth one end, last through AB two panels
End hollow tubular fixing tooth, inserting needle.If film making finds that fixing tooth positioning is undesirable before inserting needle, localizer is removed, it is again fixed
Position, film making, until it reaches till good result.
Beneficial effect
The present invention provides a kind of inserting needle localizer for Patella fracture, is a kind of medical apparatus and instruments, and its structure is little, can be to patella
In fracture operation, inserting needle plays positioning action.Entry point will be set using this device, then row x-ray is saturating after fracture block reset in art
Depending on patella anterioposterior and lateral film, after confirming that position is good, then inserting needle, increase success rate of operation.Simple to operate, accuracy rate is high.
Fixing tooth end described in 1 is zigzag, increases occlusion dynamics, prevents from slipping.
Fixing tooth described in 2 is hollow needle tubulose, for inserting needle, directly finds inserting needle position by localizer.
3 four Ge Kong centers, four points one line, Kirschner wire or guide pin can be inserted patella along fixing tooth and be reached desired location.
The needle tubing internal diameter of 4 fixing tooths has a plurality of specifications, such as 2.7mm, 2.2mm, 1.7mm, 1.2mm, 1.0mm, corresponds to respectively
Clinical conventional 2.5mm, the Kirschner wire and guide pin diameter of 2.0mm, 1.5mm, 1.0mm, 0.8mm are convenient according to Patella fracture block
Size select different-diameter needle tubing.Internal diameter differs 0.2mm, moderate range, accurate positioning with Kirschner wire diameter.
Fixing tooth described in 5, to develop under fluoroscopy, can be metal material.In addition to fixing tooth, other parts can be
Metal is nonmetallic.Metal etc. can developing material can develop in display screen, judge whether locator position reasonable.
AB described in 6 to be detachably connected, sterilizing convenient for cleaning, flexibility ratio is big, facilitate the positioning of all size sclerite
Thread a needle.
B pieces described in 7 one end that is connected with A pieces is provided with scale, and described A pieces are provided with graduated scale, can be used for measurement the 2nd, 3
Distance between hole, guidance insert the length of hollow screw.
A pieces described in 8 are equipped with scale with B pieces two panels four sides, and left side right side procedures can be suitable for.
Description of the drawings
Fig. 1 is a kind of inserting needle locator structure schematic diagram for Patella fracture;
Fig. 2 is a kind of inserting needle localizer fixing tooth mplifying structure schematic diagram for Patella fracture;
Fig. 3 is a kind of inserting needle localizer A chip architecture schematic diagrams for Patella fracture;
Fig. 4 is a kind of inserting needle localizer B chip architecture schematic diagrams for Patella fracture;
Fig. 5 is patella structural representation;
Fig. 6 is Patella fracture positioning requirements schematic diagram;
Fig. 7 is Patella fracture figure;
Fig. 8 is Patella fracture Kirschner wire fixation figure;
Fig. 9 is a kind of inserting needle localizer use state figure for Patella fracture;
1-A pieces;2-B pieces;The first holes of 3-;The second holes of 4-;The 3rd holes of 5-;The 4th holes of 6-;7- graduated scales;8- fixing tooths;9- is spacing
Groove;10- is latched;11- scales;12- sawtooth;13- surfaces;14- articular surfaces;1/3 position line of 15- patellas;1/3 position of 16- patellas
The upper and lower 4mm lines of line;The upper and lower 2mm of 1/3 position line of 17- patellas;18- kneecaps bottom;19- apex patellaes;20- fragmentation bones are fast.
Specific embodiment
Embodiment 1
A kind of inserting needle localizer for Patella fracture as shown in Fig. 1,2,3,4,9, including two " L " type spacers, respectively A
Piece 1, B pieces 2, described A pieces 1 combine formation " C " type structure with B pieces 2, and described A pieces 1 are provided with opposite fixing tooth with 2 one end of B pieces
8, described A pieces 1 are provided with stopper slot 9, and described A pieces 1 position that is connected with B pieces 2 sets lock 10;Described fixing tooth 8 contains X
Developing material under light.
Described lock is latched for unidirectional retaining.After A piece B pieces are mutually combined, in stopper slot, slip B pieces are solid along two
Constant pitch can not latch interception from when reducing direction motion, and A pieces and B pieces are moved freely.When relative motion is stopped, lock
Button automatic locking, AB pieces can not be mutually shifted.When needing to move backward A pieces with B pieces, i.e., distance increase between fixing tooth must
Lock button must be pressed, lock can be moved after unclamping.The lock is prior art.
Described 8 end of fixing tooth is 12 shape of sawtooth.
Described fixing tooth 8 is hollow needle tubulose.
Described fixing tooth 8 is hollow needle tubulose, and described 8 hollow needle tube internal diameter specification of fixing tooth is 2.7mm, coordinates straight
The guide pin or Kirschner wire of footpath 2.5mm.
8 two ends of fixing tooth of described A pieces 1 are respectively the first hole 3, and the second hole 4,8 two ends of fixing tooth of B pieces 2 are respectively
3rd hole 5, the 4th hole 6;First hole 3 of described 1 fixing tooth 8 of A pieces, the second hole 4, the 3rd hole 5 of 2 fixing tooth 8 of B pieces, the 4th
Hole 6 is circular, described 3 center of the first hole, 4 center of the second hole, 5 center of the 3rd hole, 6 center of the 4th hole, four points one line.
Described fixing tooth 8 containing can developing material be metal material, other parts also be metal.
Described A pieces 1, B pieces 2 are to be detachably connected.
Described B pieces 2 one end that is connected with A pieces 1 is provided with scale 11, and described A pieces 1 are provided with graduated scale 7.
Described graduated scale 7 is located at 8 second hole of fixing tooth, 4 orthographic projection at 1 position of A pieces, described 11 starting one of scale
End is positioned at 5 orthographic projection of the 3rd hole of fixing tooth 8 at 2 position of B pieces.
The A pieces 1 are equipped with scale with 2 one side of B pieces.
Embodiment 2
A kind of inserting needle localizer for Patella fracture as shown in Fig. 1,2,3,4,9, including two " L " type spacers, respectively A
Piece 1, B pieces 2, described A pieces 1 combine formation " C " type structure with B pieces 2, and described A pieces 1 are provided with opposite fixing tooth with 2 one end of B pieces
8, described A pieces 1 are provided with stopper slot 9, and described A pieces 1 position that is connected with B pieces 2 sets lock 10;Described fixing tooth 8 contains X
Developing material under light.
Described lock is latched for unidirectional retaining.After A piece B pieces are mutually combined, in stopper slot, slip B pieces are solid along two
Constant pitch can not latch interception from when reducing direction motion, and A pieces and B pieces are moved freely.When relative motion is stopped, lock
Button automatic locking, AB pieces can not be mutually shifted.When needing to move backward A pieces with B pieces, i.e., distance increase between fixing tooth must
Lock button must be pressed, lock can be moved after unclamping.The lock is prior art.
Described 8 end of fixing tooth is 12 shape of sawtooth.
Described fixing tooth 8 is hollow needle tubulose.
Described fixing tooth 8 is hollow needle tubulose, and described 8 hollow needle tube internal diameter specification of fixing tooth is 1.0mm, coordinates straight
The guide pin or Kirschner wire in footpath 0.8.
8 two ends of fixing tooth of described A pieces 1 are respectively the first hole 3, and the second hole 4,8 two ends of fixing tooth of B pieces 2 are respectively
3rd hole 5, the 4th hole 6;First hole 3 of described 1 fixing tooth 8 of A pieces, the second hole 4, the 3rd hole 5 of 2 fixing tooth 8 of B pieces, the 4th
Hole 6 is circular, described 3 center of the first hole, 4 center of the second hole, 5 center of the 3rd hole, 6 center of the 4th hole, four points one line.
Described fixing tooth 8 containing can developing material be metal material, other parts are for nonmetallic.
Described A pieces 1, B pieces 2 are to be detachably connected.
Described B pieces 2 one end that is connected with A pieces 1 is provided with scale 11, and described A pieces 1 are provided with graduated scale 7.
Described graduated scale 7 is located at 8 second hole of fixing tooth, 4 orthographic projection at 1 position of A pieces, described 11 starting one of scale
End is positioned at 5 orthographic projection of the 3rd hole of fixing tooth 8 at 2 position of B pieces.
The A pieces 1 are equipped with scale with 2 two sides of B pieces.
Using method of the present invention sees below:
Median incision before conventional kneecap, exposes patella, and block reset of fracturing, A piece 1B pieces 2 are combined by stopper slot 9, according to fracture feelings
Condition adjustment A pieces 1 and 2 relative position of B pieces so that fixing tooth 8 is needing fixed Patella fracture block two ends respectively, after fix stably
Lock 10 is locked, anterioposterior and lateral film is shot.After confirming that position is good, Kirschner wire or guide pin pass through 8 one end of fixing tooth, through A pieces
2 two panels end hollow tubular fixing tooth 8 of 1B pieces, inserting needle.If film making finds that fixing tooth positioning is undesirable before inserting needle, remove fixed
Position device, repositions, film making, until it reaches till good result.
Embodiment 3
A kind of Patella fracture inserting needle localizer extracorporeal simulating experiment
Purpose:Patella fracture model is made by external, Patella fracture inserting needle localizer is inquired into and whether can be improved that to put pin accurate
Property;
Method:Using patella model, patella two parts Fracture Simple is made, resetted using canonical form reduction forceps, be divided to two groups to carry out reality
Test:
First group, conventional freehand puts pin group, first puts pin, then fluoroscopic observation inserting needle position;It is second group, a kind of for Patella fracture
Inserting needle localizer auxiliary puts pin group, and the skeleton after resetting to reduction forceps requires to find according to diagnosis and treatment most preferable puts pin position, positioning
First have an X-rayed after device positioning, after position is good, put pin again.6 doctors(Two high titles, organize academic title, two primary duties in two
Claim)Participate in this experiment, every doctor carry out respectively it is free-hand put pin 10 times, put pin 10 times after localizer positioning again.Experimental evaluation
Index is to put pin accuracy rate:Equality is put in facies articularis patellae, Kirschner wire two ends all positions
It is defined as excellent in 2mm, has one end or two ends to be all located at the outer 2-4mm of 1/3 line and be defined as good, it is poor to be defined as more than 4mm(As schemed
Shown in 6).
As a result:The free-hand excellent rate of pin group of putting is 41.6%, yield 35.0%, rate 23.4%;Wherein just group academic title free-hand to put pin excellent
Rate is 25.0%, yield 40.0%, rate 35.0%;It is 100% that localizer auxiliary puts the excellent rate of pin group, without bad inserting needle.
It is free-hand | Localizer | |||||
It is excellent | It is good | Difference | It is excellent | It is good | Difference | |
High title 1 | 5 | 3 | 2 | 10 | 0 | 0 |
High title 2 | 6 | 3 | 1 | 10 | 0 | 0 |
Intermediate title 1 | 5 | 3 | 2 | 10 | 0 | 0 |
Intermediate title 2 | 4 | 4 | 2 | 10 | 0 | 0 |
Elementary academic 1 | 3 | 4 | 3 | 10 | 0 | 0 |
Elementary academic 2 | 2 | 4 | 4 | 10 | 0 | 0 |
Conclusion:A kind of inserting needle localizer for Patella fracture can significantly improve inserting needle acceptance rate, increase success rate of operation, especially
Which is for young doctor.Using positioning action can be played to inserting needle in Patella fracture art, reach by once threading a needle
The effect of needs, saves operating time, reduces patient suffering, increases success rate of operation, the secondary wound of the initiation that prevents from threading a needle repeatedly
Evil.And it is simple to operate.
Claims (10)
1. a kind of inserting needle localizer for Patella fracture, including two " L " type spacers, respectively A pieces(1), B pieces(2), institute
The A pieces stated(1)With B pieces(2)Combination forms " C " type structure, described A pieces(1)With B pieces(2)One end is provided with opposite fixing tooth
(8), described A pieces(1)It is provided with stopper slot(9), described A pieces(1)With B pieces(2)The position that is connected sets lock(10);Described
Fixing tooth(8)Containing developing material under X-ray.
2. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that described fixing tooth
(8)End is sawtooth(12)Shape.
3. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that described fixing tooth
(8)For hollow needle tubulose.
4. a kind of inserting needle localizer for Patella fracture according to claim 3, it is characterised in that described fixing tooth
(8)For hollow needle tubulose, described fixing tooth(8)Hollow needle tube internal diameter specification be 2.7mm, 2.2mm, 1.7mm, 1.2mm,
1.0mm。
5. a kind of inserting needle localizer for Patella fracture according to claim 3, it is characterised in that A pieces(1)Fixation
Tooth(8)Two ends are respectively the first hole(3), the second hole(4), B pieces(2)Fixing tooth(8)Two ends are respectively the 3rd hole(5), the 4th
Hole(6);Described A pieces(1)Fixing tooth(8)The first hole(3), the second hole(4), B pieces(2)Fixing tooth(8)The 3rd hole(5),
4th hole(6)For circle, the first described hole(3)Center, the second hole(4)Center, the 3rd hole(5)Center, the 4th hole(6)Center
Four points one lines.
6. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that described fixing tooth
(8)Containing can developing material be metal material.
7. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that described A pieces
(1), B pieces(2)To be detachably connected.
8. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that described B pieces(2)
With A pieces(1)The one end that is connected is provided with scale(11), described A pieces(1)It is provided with graduated scale(7).
9. a kind of inserting needle localizer for Patella fracture according to claim 5 and 8, it is characterised in that described quarter
Scale(7)Positioned at fixing tooth(8)Second hole(4)Orthographic projection is in A pieces(1)At position, described scale(11)Initial one end is located at
Fixing tooth(8)3rd hole(5)Orthographic projection is in B pieces(2)At position.
10. a kind of inserting needle localizer for Patella fracture according to claim 1, it is characterised in that the A pieces(1)
With B pieces(2)Two sides is equipped with scale.
Priority Applications (1)
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CN201611007373.7A CN106510832A (en) | 2016-11-16 | 2016-11-16 | Needle inserting positioner for patellar fracture |
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CN201611007373.7A CN106510832A (en) | 2016-11-16 | 2016-11-16 | Needle inserting positioner for patellar fracture |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109567924A (en) * | 2017-09-28 | 2019-04-05 | 董文伟 | Patella fracture tension band is closed device for posting and operation method |
CN111227915A (en) * | 2020-01-14 | 2020-06-05 | 成都市新都区中医医院 | Auxiliary external fixation instrument for treating child supracondylar fracture of humerus by fixing through cross Kirschner wire |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109567924A (en) * | 2017-09-28 | 2019-04-05 | 董文伟 | Patella fracture tension band is closed device for posting and operation method |
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CN111227915A (en) * | 2020-01-14 | 2020-06-05 | 成都市新都区中医医院 | Auxiliary external fixation instrument for treating child supracondylar fracture of humerus by fixing through cross Kirschner wire |
CN111227915B (en) * | 2020-01-14 | 2023-03-07 | 成都市新都区中医医院 | Auxiliary external fixation instrument for treating child supracondylar fracture of humerus by fixing through cross Kirschner wire |
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