CN105726136A - Elbow joint rotation center guider - Google Patents

Elbow joint rotation center guider Download PDF

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Publication number
CN105726136A
CN105726136A CN201610060286.1A CN201610060286A CN105726136A CN 105726136 A CN105726136 A CN 105726136A CN 201610060286 A CN201610060286 A CN 201610060286A CN 105726136 A CN105726136 A CN 105726136A
Authority
CN
China
Prior art keywords
elbow joint
location
guide pin
pin sleeve
joint center
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
CN201610060286.1A
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Chinese (zh)
Inventor
余斌
姚金波
王磊
肖亮星
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.)
FOSHAN YITI MEDICAL TREATMENT Co Ltd
Original Assignee
FOSHAN YITI MEDICAL TREATMENT Co Ltd
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 FOSHAN YITI MEDICAL TREATMENT Co Ltd filed Critical FOSHAN YITI MEDICAL TREATMENT Co Ltd
Priority to CN201610060286.1A priority Critical patent/CN105726136A/en
Publication of CN105726136A publication Critical patent/CN105726136A/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
    • A61B2017/564Methods for bone or joint treatment

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  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention discloses an elbow joint rotation center guider which comprises a main body frame, a sliding arm and a guide pin sleeve. The main body frame is arranged on the guide pin sleeve, the sliding arm is slidably fixed to the main body frame, and the guide pin sleeve is internally provided with a central hole which can allow a kirschner pin to penetrate therein; the front end of the guide pin sleeve is provided with a first positioning sharp end communicated with the central hole, the front end of the sliding arm is provided with a second positioning sharp end communicated with the central hole, and the center line of the first positioning sharp end and the center line of the second positioning sharp end are always maintained on the same straight line. so that when the kirschner pin penetrates therein, the kirschner pin sequentially penetrates through the second positioning sharp end, the first positioning sharp end and the central hole. By means of the elbow joint rotation center guider, the elbow joint rotation center can be positioned conveniently and fast without X-ray examination in an operation.

Description

A kind of elbow joint center of rotation guider
Technical field
The present invention relates to elbow joint center of rotation positioner field, particularly a kind of elbow joint center of rotation guider.
Background technology
On dissecting, elbow joint is the joint of an only articular cavity, and on physiology, it is but have function two kinds different: rotate, supination occurs at proximal radioulnar joint;Flexing occurs at upper arm oar and humeroulnar joint with stretching, therefore, elbow joint expands operation strategies and the motility of hands, but in all joint injuries, it is stiff that elbow is easiest to after hindering, badly influence upper extremity function after elbow joint stiffness, cause many daily life inconvenience to patient.
Elbow joint function is 90 ° of positions of flexing, and its most useful range of activity, between 60~120 °, considers from function aspects, and the flexing of elbow joint is more than stretching.Owing to after elbow joint as a rule wound being the position that elbow joint is fixed on 90 ° of elbow in the wrong, when starting elbow joint exercise, it is not straight that patient often fears that elbow joint is stretched, therefore, naturally enough tempering terminal repeatedly in stretching elbow, and have ignored elbow in the wrong that is even more important and that be more difficult to recover and move, in addition elbow is stretched by the natural tendency of position and action of gravity, thus when elbow joint function can not recover completely, limited maximum be bend elbow, and it is less to stretch elbow impact, thus losing the most beneficial movement scope played a role.Aiming at of elbow joint stiffness for the treatment of provides painless, a stable joint to patient, external fixer technology just can play this effect, after the stiff elbow joint of patient installs external fixer, patient can early functional exercise, exercise routine can be obviously improved function of joint range of activity, and in External Fixation in Treatment elbow joint stiffness, being accurately positioned of elbow joint center of rotation is most important.
Distal humerus is flat and narrow, and front-back caves in, and forms coronoid fossa and olecranon fossa respectively, and stubbornness at the bottom of nest is belittled, and both sides form bone ridge, and ulnar side bone ridge is low and thick, and oar side seam ridge is prominent and thin.For trochlea of humerus i.e. interior condyle inside distal humerus;Outside is capitulum of humerus and ectocondyle.The both sides protuberance of inside and outside condyle is called medial epicondyle and lateral epicondyle.The ulnar side of trochlea of humerus is about 5-6mm lower than oar side.Elbow joint center of rotation flexion and extension axle is positioned at humerus major axis and hands on bisector of angle with forearm share-holding major axis, by medial dorsal palmar laterally close to by the middle part of coaster.Kinematic axis neither be invariable, has slight swing in the process of bending and stretching, it is possible to regards the substrate taper in inner side as, and its conical apex angle is 10 degree, the diameter length 2mm of substrate.The anatomical structure feature of elbow joint determines it and is difficult in art conveniently and is accurately positioned.The free-hand searching capitulum of humerus-concentrically ringed method of trochlea of humerus rotating shaft of repeatedly repeatedly having an X-rayed of many employings clinically positions elbow joint center of rotation, position repeatedly changes and brings very big difficulty to operation technique, also the accuracy of strong influence center of rotation location, and perspective repeatedly also damages the physical and mental health of patient and operative doctor greatly.
The domestic pertinent literature not yet having elbow joint center of rotation guider is reported at present.
Summary of the invention
For drawbacks described above, it is an object of the invention to propose a kind of can in art in not perspective situation the convenient guider positioning elbow joint center of rotation.
For reaching this purpose, the present invention by the following technical solutions:
A kind of elbow joint center of rotation guider;Including main frame, travelling arm and guide pin sleeve, described main frame is arranged on described guide pin sleeve, and described travelling arm is slidably fixed to described main frame, is provided with the centre bore that Kirschner wire can be allowed to penetrate in described pilot sleeve;
The front end of described guide pin sleeve is provided with the first tip, location communicated with described centre bore, the front end of described travelling arm is provided with the second tip, location communicated with described centre bore, the centrage at most advanced and sophisticated and described second tip, location, described first location remains at same straight line, when described Kirschner wire is penetrated, sequentially pass through described second tip, location, the first tip, location and centre bore.
Preferably, one end of described travelling arm is provided with chute, and described chute is installed on described main frame slidably, and is fixed by fixing bolt.
Preferably, the upper surface of described travelling arm is fixed with the semi-cylindrical hill for holding, and described semi-cylindrical hill is arranged on the side of described fixing bolt, and the height of described semi-cylindrical hill is more than described fixing bolt height after fixing.
Preferably, the L shape structure that described main frame is made up of vertical frame and crossbearer, the end of described vertical frame is provided with sleeve, and described main frame is set in described guide pin sleeve by sleeve;One end of described travelling arm is arranged on described crossbearer.
Preferably, in the middle vertical plane of the middle vertical plane of the arm body of described travelling arm and described guide pin sleeve is generally aligned in the same plane, and the arm body of described travelling arm is relative to the described outward-dipping setting of guide pin sleeve.
Preferably, the end of described crossbearer is provided with limiting section, and described limiting section is downwardly extending along vertical direction by the end of described crossbearer.
Preferably, described main frame is by described vertical frame, crossbearer and the limiting section integral structure that head and the tail are formed by connecting successively, and passes through round-corner transition when described vertical frame, crossbearer and limiting section connect between any two.
Preferably, described first location is most advanced and sophisticated is designed with cutting inclined-plane with the second most advanced and sophisticated relative end face in location.
Preferably, the rear end at described first tip, location is fixed on described guide pin sleeve by frustum cone structure, and wherein, the rear end at described first tip, location is fixed on the small end of described frustum cone structure, and the big end of described frustum cone structure is fixed on described guide pin sleeve.
Preferably, the rear end of described guide pin sleeve is provided with shoe.
Beneficial effects of the present invention: first inside elbow joint before condylus medialis humeri tip, on the auxiliary little otch of 1cm, inner side, location trochlea of humerus rotary middle point, electric knife calcination positions, first tip, location of inner side is positioned at trochlea of humerus rotary middle point, second tip, location of outside slip swing arm is placed in outside capitulum of humerus rotary middle point, regulate fixing bolt and tighten fixing travelling arm, ecto-entad penetrates diameter 2.0mm Kirschner wire, convenient in not perspective situation in art can position elbow joint center of rotation.
Accompanying drawing explanation
Fig. 1 is the structure chart of one embodiment of the present of invention;
Fig. 2 is the explosive view of one embodiment of the present of invention;
Fig. 3 is the sectional view of one embodiment of the present of invention.
Wherein: main frame 1, vertical frame 11, crossbearer 12, sleeve 13, limiting section 14;Travelling arm 2, chute 20, the second location most advanced and sophisticated 21, semi-cylindrical hill 22;Guide pin sleeve 3, centre bore 30, the first location most advanced and sophisticated 31, frustum cone structure 32;Fixing bolt 4, shoe 5.
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with accompanying drawing and by detailed description of the invention.
As shown in Figures 1 and 2, a kind of elbow joint center of rotation guider;Including main frame 1, travelling arm 2 and guide pin sleeve 3, described main frame 1 is arranged on described guide pin sleeve 3, and described travelling arm 2 is slidably fixed to described main frame 1, is provided with the centre bore 30 that Kirschner wire can be allowed to penetrate, as shown in Figure 3 in described pilot sleeve 3;
The front end of described guide pin sleeve 3 is provided with the first location most advanced and sophisticated 31 communicated with described centre bore 30, the front end of described travelling arm 2 is provided with the second location most advanced and sophisticated 21 communicated with described centre bore 30, the centrage of described first location most advanced and sophisticated 31 and described second location most advanced and sophisticated 21 remains at same straight line, when described Kirschner wire is penetrated, sequentially pass through most advanced and sophisticated 21, first location most advanced and sophisticated 31 and the centre bore 30 in described second location.
Guider operation principle: first inside elbow joint before condylus medialis humeri tip, on the auxiliary little otch of 1cm, inner side, location trochlea of humerus rotary middle point, electric knife calcination positions, first location most advanced and sophisticated 31 of inner side is positioned at trochlea of humerus rotary middle point, second location most advanced and sophisticated 21 of outside slip swing arm 2 is placed in outside capitulum of humerus rotary middle point, regulating fixing bolt and tighten fixing travelling arm 2, ecto-entad penetrates diameter 2.0mm Kirschner wire.
Although when not having an X-rayed by utilizing the instrument of design to carry out the target that position rotating center is for we, it is contemplated that the exception of the individual variation of bony structure and bony structure, this being positioned in practical operation sometimes has difficulties, the experience being more dependent on operative doctor whether accurately played a decisive role for location in other words.Capitulum of humerus side lateral collateral ligament starting point has a projection can touch with hands, can as the bone witness marker of outside capitulum of humerus center of rotation, carry out the interior Lateral retinacular release operation of elbow joint, when capitulum of humerus and trochlea of humerus are completely exposed, recycle our designed instrument and carry out looking at lower location elbow joint center of rotation effect straight more preferably.
One end of described travelling arm 2 is provided with chute 20, and described chute 20 is installed on described main frame 1 slidably, and is fixed by fixing bolt 4.
Fixing after realizing the travelling arm 2 adjustable sliding on active frame 1 by fixing bolt 4, flexible adjustment, Gu timing stability is strong.
The upper surface of described travelling arm 2 is fixed with the semi-cylindrical hill 22 for holding, and described semi-cylindrical hill 22 is arranged on the side of described fixing bolt 4, and the height of described semi-cylindrical hill 22 fixing more than described fixing bolt 4 after height.
After user holds described semi-cylindrical hill 22, to regulate travelling arm 2 on main frame 1 during relative movement, easy to adjust, move quick and precisely;Fixing bolt 4 is arranged on the side of described semi-cylindrical hill 22, then the sidewall of highly bigger semi-cylindrical hill 22 defines the position of described fixing bolt 4, strengthens its location and fixing effect.
The L shape structure that described main frame 1 is made up of vertical frame 11 and crossbearer 12, the end of described vertical frame 11 is provided with sleeve 13, and described main frame 1 is set in described guide pin sleeve 3 by sleeve 13;One end of described travelling arm 2 is arranged on described crossbearer 12.
Simple in construction, when being positioned between the two during by the both sides of elbow joint by described first location most advanced and sophisticated 31 and described second location most advanced and sophisticated 21, the activity space of elbow joint is big, it is simple to regulate.
In the middle vertical plane of the middle vertical plane of the arm body of described travelling arm 2 and described guide pin sleeve 3 is generally aligned in the same plane, and the arm body of described travelling arm 2 is relative to the described outward-dipping setting of guide pin sleeve 3.
For being vertically arranged, arm body 21 in the technical program and the guide pin sleeve 3 inside it form acute angle, when then adjustment travelling arm 2 moves on main frame 1, place for elbow joint between the arm body 21 and the guide pin sleeve 3 that tilt and leave enough activity spaces, the adjustment of travelling arm 2 is more flexible, also improves comfort level when patient uses simultaneously.
The end of described crossbearer 12 is provided with limiting section 14, and described limiting section 14 is downwardly extending along vertical direction by the end of described crossbearer 12.
Described travelling arm 2 moves out away from described guide pin sleeve 3, when the upper side wall of described travelling arm 2 props up the lower surface of described limiting section 14, it is the extreme position that travelling arm 2 moves out, so limiting section 14 plays limits the extreme position that travelling arm 2 moves along crossbearer 12, prevent the effect that travelling arm 2 slips from crossbearer 12, simple in construction, locating effect is fabulous.
Described main frame 1 is by described vertical frame 11, crossbearer 12 and limiting section 14 integral structure that head and the tail are formed by connecting successively, and passes through round-corner transition when described vertical frame 11, crossbearer 12 and limiting section 14 connect between any two.
Integral structure, simplifies procedure of processing, improves working (machining) efficiency;And described vertical frame 11, crossbearer 12 and limiting section 14 pass through round-corner transition when connecting before between two, it is to avoid use or damage to device corner during transport, extend its service life, it is ensured that its serviceability.
Described first location most advanced and sophisticated 31 positions the relative end face in tip 21 and is designed with cutting inclined-plane with second.
As shown in Figure 3, cutting inclined-plane on described first location most advanced and sophisticated 31 is formed to the cutting of its upper left side by the bottom of described first location most advanced and sophisticated 31, cutting inclined-plane on described second location most advanced and sophisticated 21 is formed to the cutting of its upper right side by the bottom of described second location most advanced and sophisticated 21, during location more convenient accurately, stability is strong.
The rear end of described first location most advanced and sophisticated 31 is fixed on described guide pin sleeve 3 by frustum cone structure 32, and wherein, the rear end of described first location most advanced and sophisticated 31 is fixed on the small end of described frustum cone structure 32, and the big end of described frustum cone structure 32 is fixed on described guide pin sleeve 3.
Frustum cone structure 32 provides mounting platform for described first location most advanced and sophisticated 31, easy to process, and the power of disease site are inserted in simultaneous buffering the first location most advanced and sophisticated 31, reduce the pain of sufferer.
The rear end of described guide pin sleeve 3 is provided with shoe 5.
Shoe 5 in the present embodiment can be the structure of the similarly the same effects such as anti-skidding stupefied, Anti-slip cover, adds the frictional force between hands and guide pin sleeve 3 during use, for patient elbow joint position time more accurate.
The know-why of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explanation principles of the invention, and can not be construed to limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within protection scope of the present invention.

Claims (10)

1. an elbow joint center of rotation guider, it is characterized in that: include main frame, travelling arm and guide pin sleeve, described main frame is arranged on described guide pin sleeve, and described travelling arm is slidably fixed to described main frame, is provided with the centre bore that Kirschner wire can be allowed to penetrate in described pilot sleeve;
The front end of described guide pin sleeve is provided with the first tip, location communicated with described centre bore, the front end of described travelling arm is provided with the second tip, location communicated with described centre bore, the centrage at most advanced and sophisticated and described second tip, location, described first location remains at same straight line, when described Kirschner wire is penetrated, sequentially pass through described second tip, location, the first tip, location and centre bore.
2. elbow joint center of rotation guider according to claim 1, it is characterised in that: one end of described travelling arm is provided with chute, and described chute is installed on described main frame slidably, and is fixed by fixing bolt.
3. elbow joint center of rotation guider according to claim 2, it is characterized in that: the upper surface of described travelling arm is fixed with the semi-cylindrical hill for holding, described semi-cylindrical hill is arranged on the side of described fixing bolt, and the height of described semi-cylindrical hill is more than described fixing bolt height after fixing.
4. elbow joint center of rotation guider according to claim 1 and 2, it is characterised in that: the L shape structure that described main frame is made up of vertical frame and crossbearer, the end of described vertical frame is provided with sleeve, and described main frame is set in described guide pin sleeve by sleeve;One end of described travelling arm is arranged on described crossbearer.
5. elbow joint center of rotation guider according to claim 4, it is characterized in that: in the middle vertical plane of the middle vertical plane of the arm body of described travelling arm and described guide pin sleeve is generally aligned in the same plane, and the arm body of described travelling arm is relative to the described outward-dipping setting of guide pin sleeve.
6. elbow joint center of rotation guider according to claim 5, it is characterised in that: the end of described crossbearer is provided with limiting section, and described limiting section is downwardly extending along vertical direction by the end of described crossbearer.
7. elbow joint center of rotation guider according to claim 5, it is characterized in that: described main frame is by described vertical frame, crossbearer and the limiting section integral structure that head and the tail are formed by connecting successively, and passes through round-corner transition when described vertical frame, crossbearer and limiting section connect between any two.
8. elbow joint center of rotation guider according to claim 1, it is characterised in that: described first location is most advanced and sophisticated is designed with cutting inclined-plane with the second most advanced and sophisticated relative end face in location.
9. the elbow joint center of rotation guider according to claim 1 or 8, it is characterized in that: the rear end at described first tip, location is fixed on described guide pin sleeve by frustum cone structure, wherein, the rear end at described first tip, location is fixed on the small end of described frustum cone structure, and the big end of described frustum cone structure is fixed on described guide pin sleeve.
10. elbow joint center of rotation guider according to claim 1, it is characterised in that: the rear end of described guide pin sleeve is provided with shoe.
CN201610060286.1A 2016-01-28 2016-01-28 Elbow joint rotation center guider Pending CN105726136A (en)

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CN201610060286.1A CN105726136A (en) 2016-01-28 2016-01-28 Elbow joint rotation center guider

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Application Number Priority Date Filing Date Title
CN201610060286.1A CN105726136A (en) 2016-01-28 2016-01-28 Elbow joint rotation center guider

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111631806A (en) * 2020-06-03 2020-09-08 张坤 Bone needle guiding device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159716A (en) * 1977-10-17 1979-07-03 Borchers Clinton H Method of compressing and realigning bone structures to correct splay foot
CN2086591U (en) * 1990-04-29 1991-10-16 佳木斯医学院附属医院 Bow-shaped guide drilling apparatus
US20030009171A1 (en) * 2001-07-09 2003-01-09 Alain Tornier Ancillary tool for fitting a humeral component of an elbow prosthesis
CN1917821A (en) * 2004-02-20 2007-02-21 辛迪思有限公司 Aiming device for inserting stable-angle, long screws in the articular region of a bone
US20100234856A1 (en) * 2008-11-05 2010-09-16 The Johns Hopkins University Rotating needle driver and apparatuses and methods related thereto
CN201631291U (en) * 2010-03-18 2010-11-17 韩志强 Bone-positioning reductor
CN204158482U (en) * 2014-09-26 2015-02-18 北京积水潭医院 A kind of for coronoid process fracture locating guider under surgery elbow arthroscopy
CN205339090U (en) * 2016-01-28 2016-06-29 佛山市乙太医疗用品有限公司 Elbow joint rotation center director

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159716A (en) * 1977-10-17 1979-07-03 Borchers Clinton H Method of compressing and realigning bone structures to correct splay foot
CN2086591U (en) * 1990-04-29 1991-10-16 佳木斯医学院附属医院 Bow-shaped guide drilling apparatus
US20030009171A1 (en) * 2001-07-09 2003-01-09 Alain Tornier Ancillary tool for fitting a humeral component of an elbow prosthesis
CN1917821A (en) * 2004-02-20 2007-02-21 辛迪思有限公司 Aiming device for inserting stable-angle, long screws in the articular region of a bone
US20100234856A1 (en) * 2008-11-05 2010-09-16 The Johns Hopkins University Rotating needle driver and apparatuses and methods related thereto
CN201631291U (en) * 2010-03-18 2010-11-17 韩志强 Bone-positioning reductor
CN204158482U (en) * 2014-09-26 2015-02-18 北京积水潭医院 A kind of for coronoid process fracture locating guider under surgery elbow arthroscopy
CN205339090U (en) * 2016-01-28 2016-06-29 佛山市乙太医疗用品有限公司 Elbow joint rotation center director

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111631806A (en) * 2020-06-03 2020-09-08 张坤 Bone needle guiding device

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Application publication date: 20160706