CN106510832A - Needle inserting positioner for patellar fracture - Google Patents

Needle inserting positioner for patellar fracture Download PDF

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Publication number
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
Authority
CN
China
Prior art keywords
pieces
hole
fixing tooth
inserting needle
localizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611007373.7A
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Chinese (zh)
Inventor
邱旭升
陈心
陈一心
施鸿飞
王骏飞
熊进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Drum Tower Hospital
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Nanjing Drum Tower Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Drum Tower Hospital filed Critical Nanjing Drum Tower Hospital
Priority to CN201611007373.7A priority Critical patent/CN106510832A/en
Publication of CN106510832A publication Critical patent/CN106510832A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/90Guides therefor

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

A kind of inserting needle localizer for Patella fracture
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.
CN201611007373.7A 2016-11-16 2016-11-16 Needle inserting positioner for patellar fracture Pending CN106510832A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
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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CN105662572A (en) * 2016-03-15 2016-06-15 丁勇 Kirschner wire guider
CN205514808U (en) * 2016-03-10 2016-08-31 王春峰 Cervical vertebra puncture location guide
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CN2568135Y (en) * 2002-09-23 2003-08-27 陈慧军 Human body target orientation microinjury positioning pilot bedstead
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Cited By (4)

* Cited by examiner, † Cited by third party
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
CN109567924B (en) * 2017-09-28 2024-02-06 宁波大学附属第一医院 Patella fracture tension band closed imbedding device 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
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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