CN105193484B - A kind of integrated fixing device of olecranal fracture - Google Patents

A kind of integrated fixing device of olecranal fracture Download PDF

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Publication number
CN105193484B
CN105193484B CN201510748139.9A CN201510748139A CN105193484B CN 105193484 B CN105193484 B CN 105193484B CN 201510748139 A CN201510748139 A CN 201510748139A CN 105193484 B CN105193484 B CN 105193484B
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China
Prior art keywords
fracture
suo ding
fixing device
hole
ribbon
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CN201510748139.9A
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Chinese (zh)
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CN105193484A (en
Inventor
牛志晓
陈波
谢彦杰
王翠翠
孙赟辉
张正文
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上海凯利泰医疗科技股份有限公司
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Priority to CN201510748139.9A priority Critical patent/CN105193484B/en
Publication of CN105193484A publication Critical patent/CN105193484A/en
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Publication of CN105193484B publication Critical patent/CN105193484B/en

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Abstract

The invention discloses a kind of integrated fixing device of olecranal fracture, including ribbon part and Suo Ding, the tail end of one end connecting strand nail of ribbon part, the other end of ribbon part is connected with a pull needle;Suo Ding is placed at olecranal fracture and is attached, and ribbon part is pressed at olecranal fracture and is strained and fixed.The present invention has excellent biocompatibility, it is to avoid stimulation of the implant to implant site, solves the problem that implant needs second operation to take out;Ribbon part has relatively low modulus of elasticity, while providing efficiently fixed, effectively protects the blood supply of fixed position, reduces the postoperative pain of patient, shorten the recovery period of patient;Ribbon part provides effective fixed form for slight comminuted olecranal fracture;In addition, present invention introduces " minimally invasive " theory, previous procedure complex operation is solved, wound is big, postoperative patient pain, the problems such as local excitation is serious.

Description

A kind of integrated fixing device of olecranal fracture

Technical field

The present invention relates to Design for Medical Device technical field, and in particular to a kind of fixed dress of olecranal fracture integration Put.

Background technology

Proximal ulna rear is referred to as olecranon positioned at subcutaneous projection, and the coronoid process of ulna in itself and front constitutes semilunar notch, This incisura just forms chi upper arm joint with trochlea humeri, and chi upper arm joint only has flexion-extension motion.Olecranal fracture refers to involve first quarter moon The intra-articular fracture of incisura, olecranal fracture belongs to intra-articular fracture, is often associated with the fracture and soft tissue injury at other positions, The reduction of the fracture requires high, and postoperative requirement early stage carries out functional training.

At present, treating the conventional operation method of this fracture is, tension band wiring fixation.The method of this operation Principle is, after olecranal fracture, the effect of the bicipital muscle of arm, triceps and forearm flexor, pressure is produced in front of olecranon, rear is then Generation tensile stress, now Kirschner wire, steel wire can overcome rear tensile stress, sclerite is not produced separation, herein ring like steel wire jail Solid fixation, in addition contraction of muscle produce Dynamic compression effect, can promote fracture healing.Tension band wiring is fixed not The tissue around extensive cleavage fracture is needed, patient's damage is small, and special instrument need not be used, with firm, reliable Advantage.

The defect that this operation method is present is that soft tissue is more under steel wire, and patient feels the pressure of tension band in operation Power is very big, but postoperative with the functional recovery training in joint, the repeated action of pressure, the soft tissue under steel wire can ischemic necrosis, Liquefaction, absorption, fibrosis, loosen tension band wire, do not play a part of dynamic pressurization, cause to fix failure.

Also existing defects are that Kirschner wire can be protruded from subcutaneously, cause patient pain, discomfort, trigger Kirschner wire migration, cunning De-, loosening, steel wire fracture, skin infection etc., art complex operation, wound is larger, needs second operation to take out interior fixed.

For comminuted fracture patient, especially merge coronoid process and fracture and involve caput radii person uses tension band wiring Inside it is fixed from enough reaching anatomical reduction, and tension band tension easily causes to produce larger slip and compression shifting between sclerite Position, causes pairing exception occur between coaster olecranon joint, influences function of joint, ultimately result in patient and traumatic joint occur It is scorching.Research shows that fixation easily causes shortening or oppressing for olecranon position in tension band wiring, closes semilunar notch and coaster Nodal section pairing is inconsistent, causes malunion, triggers osteoarthritis.

The content of the invention

The invention provides a kind of integrated fixing device of olecranal fracture, including ribbon part and Suo Ding, institute The one end for stating ribbon part connects the tail end of the Suo Ding, and the other end of the ribbon part is connected with a traction Pin;The Suo Ding is placed at olecranal fracture and is attached, and the ribbon part is pressed at olecranal fracture and drawing Fasten.

It is preferred that the ribbon part is formed using ultrahigh molecular weight polyethylene yarn braiding.

It is preferred that the thickness of the ribbon part is 0.19~0.21mm, width is 2.5~4.5mm.

It is preferred that the maximum anti-pressure ability of the ribbon part is more than or equal to 60 ± 10MPa, the ribbon portion The elongation at break divided is 20%~30%.

It is preferred that being provided with the Suo Ding tail ends:

Blind hole, is arranged on the tail end end face, and along the axially arranged of the Suo Ding;

Two first through hole, are radially arranged along the Suo Ding, and are communicated with the blind hole;First through hole is symmetrically set described in two Put;

Second through hole, is radially arranged along the Suo Ding and through the Suo Ding;Second through hole is away from the tail end end face Distance be more than distance of the first through hole away from the tail end end face;

The ribbon part sequentially passes through the side by beating surgeons' knot after second through hole, first through hole, blind hole Formula is fixed, and surgeons' knot is located in the blind hole.

It is preferred that the outer surface of the tail end end of the Suo Ding is arranged to the hexagonal structure in section.

It is preferred that being provided with thread segment on the head end of the Suo Ding, the Suo Ding is placed in the olecroanon of fracture, and institute Thread segment is stated in partial fracture part.

It is preferred that the Suo Ding is made using polyetheretherketonematerials materials.

It is preferred that the fracture strength of the Suo Ding is more than or equal to 90Mpa.

It is preferred that the ribbon part connects the pull needle by connecting line, the connecting line is to use superelevation The suture of molecular weight polyethylene braiding, and between the connecting line and the pull needle, the ribbon part Bonding strength is more than or equal to 60N

The present invention is allowed to compared with prior art, have the following advantages that and actively imitate due to using above technical scheme Really:

(1)The integrated fixing device of olecranal fracture that the present invention is provided, with " BO principles " to instruct, by using polyethers Suo Ding that ether ketone is made and a strip adoption ultrahigh molecular weight polyethylene into ribbon part combine, with excellent life Thing compatibility, it is to avoid stimulation of the implant to implant site, solves the problem that implant needs second operation to take out;

(2)Ribbon part has relatively low modulus of elasticity in the present invention, is providing olecroanon efficiently fixed same When, the blood supply of fixed position is effectively protected, the postoperative pain of patient is reduced, shortens the recovery period of patient;Banding is compiled Effective fixed form can also be provided for slight comminuted olecranal fracture by knitting part;

(3)The drill way layout of Suo Ding tail ends is used for being connected with ribbon part in the present invention, it is ensured that bury the part that knots In the blind hole for being hidden in Suo Ding tail ends, protrusion foreign body sensation has been prevented;

(4)The hexagonal design of Suo Ding tail ends in the present invention so that the drilling end on olecroanon need not carried out In the case of enlarging or smaller reaming, it is also possible that Suo Ding end does not stretch out drilling;In addition, also facilitating with being used to install rope The general spiral shell vertebra of nail 1 is supporting;

(5)Rope nails on part and is provided with thread segment in the present invention so that can have between the olecroanon section fixed Slight activity, plays a part of dynamic pressurization, is conducive to the healing of olecroanon section;

(6)Present invention introduces " minimally invasive " theory, previous procedure complex operation is solved, wound is big, postoperative patient pain, office The problems such as portion stimulates serious;The fixing device is applied to Bone Injury and reparation, fracture fixation, dislocation and the operation of other bone fusions Assistance application.

Brief description of the drawings

With reference to accompanying drawing, by hereafter state detailed description, can be more clearly understood that the present invention above-mentioned and other feature and Advantage, wherein:

Fig. 1 is the structural representation of the integrated fixing device of olecranal fracture of the present invention;

The structural representation that Fig. 2 is Suo Ding in the present invention;

Fig. 3 is the partial schematic diagram of Suo Ding tail ends in the present invention;

Fig. 4 is Fig. 3 sectional view one;

Fig. 5 is Fig. 3 sectional view two;

Fig. 6 is the connection diagram between ribbon part and first through hole, the second through hole;

Fig. 7 is the integrated fixing device of olecranal fracture of the present invention and the connection diagram of ulna.

Symbol description:

1- Suo Ding

11- thread segments

The hexagonal structure in 12- sections

13- shallow slots

The through holes of 14- second

15- first through hole

16- blind holes

2- ribbons part

3- pull needles

4- connecting lines

The fractures of 51- first

The fractures of 52- second.

Embodiment

Referring to the accompanying drawing for showing the embodiment of the present invention, the present invention is described in more detail.However, the present invention can be with Many multi-forms are realized, and should not be construed as being limited by the embodiment herein proposed.On the contrary, proposing that these embodiments are In order to reach abundant and complete disclosure, and those skilled in the art are made to understand the scope of the present invention completely.These are attached In figure, for clarity, the size and relative size in layer and region may be exaggerated.

Reference picture 1-7, the invention provides a kind of integrated fixing device of olecranal fracture, includes Suo Ding 1 and band Shape knitted parts 2, one end connecting strand nail 1 of ribbon part 2, the other end is connected with pull needle 3;Suo Ding 1 is placed in olecroanon The reserved drilling of fracture is interior and is threadably secured, and tentatively connects each several part for the olecroanon fractured;Ribbon portion 2 one end are divided to be fixed on by Suo Ding 1 on olecroanon, ribbon part 2 is located at the outside of olecroanon;Ribbon part 2 are pressed at olecranal fracture, and the other end is connected to the triceps muscle of arm in the presence of pull needle 3;Set in usual surgical procedure There are two integrated fixing devices, two ribbon parts 2 are carried out tightening up knotting after the solid triceps muscle of arm is worn, and two bandings are compiled Knit the intersection of part 2 to be pressed at olecranal fracture, so as to realize the fixation in olecranal fracture portion.

Specifically, ribbon part 2 uses ultra-high molecular weight polyethylene(UHMWPE)Yarn braiding is formed, so that Ribbon part 2 is taken out after being implanted into without second operation, the generation of side reaction is reduced, while the strength of materials is higher;Specifically Yarn first can be woven into tubular during braiding, then warp loom pressing is shaped into banded structure, the volume of certain ribbon part 2 The mode of knitting is not limited thereto, and is not restricted herein;Some equally distributed nets are formed on woven ribbon part 2 Hole, the shape of mesh can be square, rectangle etc., not be restricted herein.

The thickness of ribbon part 2 is preferably 0.19~0.21mm, and ribbon part 2 can not be too thick, prevents Post operation forms projection, to ensure the planarization of articular surface, can not be too thin, to ensure the intensity of ribbon part 2.Band The width of shape knitted parts 2 is preferably width for 2.5~4.5mm, and the choosing value of its width specifically can be according to the big of olecroanon It is small to determine, it is usually provided with multiple specifications such as 2.5mm, 3.0mm, 3.5mm for selection.The length of ribbon part 2 can Set as the case may be, be usually arranged as 30cm.

Above-mentioned each size on ribbon part 2, does not make the setting of occurrence, according to tool in the present invention While body situation is set, it need to ensure that the maximum tensile strength of ribbon part 2 is not less than 60 ± 10MPa, to ensure banding Knitted parts 2 can effectively fix the olecroanon of fracture, make its not easy to break.In addition, must also ensure ribbon part 2 Elongation at break be not less than 20%;The elongation at break of ribbon part 2 can not be too big, and too conference causes ribbon There is loose phenomenon after a long time use in part 2, and the elongation at break of ribbon part 2 can not be too small, too small Ribbon part can be caused to cause compressing to olecroanon, cause the problems such as blood circulation is not smooth, ribbon portion preferably The scope for dividing 2 elongation at break is 20%~30%.

The present invention is by ribbon part 2 come instead of wire of the prior art etc., flexible ribbon part 2 The area that fixed part is contacted with olecroanon 1 is added, the pressure that contact fixed part unit area is born is reduced, protects Protect by the local blood fortune of fixed part tissue, it is to avoid the generation of necrosis;Meanwhile, flexible tape knitted parts 2 have Low elastic modulus, with certain micro- bullet self-lock ability so that fixation is more firm, while providing efficiently fixed, effectively The blood supply of fixed position is protected, the postoperative pain of patient is reduced, shortens the recovery period of patient.In addition, ribbon Part 2 can also provide effective fixation for slight comminuted olecranal fracture.

In the present embodiment, one end of ribbon part 2 is connected on Suo Ding 1 tail end.Wherein, Suo Ding 1 is using poly- Ether ether ketone material(PEEK materials)Or titanium alloy is made, PEEK, the Suo Ding 1 of titanium alloy material and UHMWPE materials band The bio-compatible performance of shape knitted parts 2 is excellent, and second operation taking-up, and pessimal stimulation and inflammation etc. significantly are not required to after implantation The generation of many side reactions.Suo Ding 1 diameter can be 4mm, and length can be a variety of rule such as 40mm, 45mm, 50mm, 55mm, 60mm Lattice;Suo Ding 1 each size can be set according to concrete condition, be not restricted herein;Suo Ding 1 fracture strength is not less than 90Mpa, to ensure Suo Ding 1 bonding strength.

Blind hole 16, the through hole 14 of first through hole 15 and second are additionally provided with such as Fig. 3-5, Suo Ding 1 tail end, is compiled for banding Knit the fixation of part 2.Specifically, blind hole 16 is arranged on the tail end end faces of Suo Ding 1, and along Suo Ding 1 axially extending setting;Suo Ding Two first through hole 15 are provided with 1, first through hole 15 sets from the lateral surfaces of Suo Ding 1 and extended in blind hole 16, first through hole 15 Communicated with blind hole 16, being radially arranged along Suo Ding 1 of first through hole 15 preferably, and two first through hole 15 are symmetrical arranged;Second leads to Hole 14 is set sideways from Suo Ding 1, extends through Suo Ding 1, and distance of second through hole 14 away from the tail end end faces of Suo Ding 1 is more than first and led to Distance of the hole 15 away from Suo Ding tail end end faces, the second being radially arranged along Suo Ding 1 of through hole 14 preferably.

Ribbon part 3 and Suo Ding 1 specific connection procedure is as follows:

Ribbon part 3 pass through the second through hole 14, the two ends of ribbon part 2 are each passed through two first through hole again 15, and the opening from blind hole 16 is passed again, the two ends of ribbon part 1 are fixed by way of beating surgeons' knot, and are protected The bonding strength demonstrate,proved between ribbon part 2 and Suo Ding 1 is not less than 60N;Knotting can partly fill in blind hole 16, realize hidden Hide, prevented protrusion foreign body sensation.

A shallow slot 13, and two are respectively arranged with reference picture 3,6, the corresponding Suo Ding 1 in the two ends of the second through hole 14 lateral surface The outboard end of first through hole 15 also is located in shallow slot 13, so that being located in the band between the through hole 14 of first through hole 15 and second Shape knitted parts are located in shallow slot 13, prevent the surface that Suo Ding 1 is protruded in ribbon part 2 from producing foreign body sensation.

Suo Ding 1 is inserted on olecroanon in default drilling, and Suo Ding 1 tail end must not stretch out drilling to prevent foreign matter Sense, therefore need to carry out expanding treatment to the end of drilling in the prior art, it certainly will so cause the bone wall of drilling end relatively thin, The problems such as easily there is slight crack.As shown in Figure 2, by the way that the outer surface of Suo Ding 1 tail end end is arranged into section in the present invention Hexagonal structure 12, so that the diameter of structure 12 diminishes, so that enlarging need not carried out to drilling end Or in the case of smaller reaming, it is also possible that Suo Ding 1 end does not stretch out drilling;In addition, the hexagonal structure 12 in section The convenient general supporting of spiral shell vertebra with for installing Suo Ding 1

As shown in Fig. 2 being additionally provided with thread segment 11 on Suo Ding 1 head end, screw thread, thread segment are not provided with entirely on Suo Ding 1 11 parts for accounting for close to head end;As shown in Figure 7, when the connections of Suo Ding 1 are broken into the first fractures 51,52 liang of the second fractures When part, the half of Suo Ding 1 is located in the first fractures 51, and second half is located in the second fractures 52, and ensures thread segment 11 are only positioned in the second fractures 52;The present invention passes through above-mentioned setting so that can have between the olecroanon section fixed Slight activity, plays a part of dynamic pressurization, is conducive to the healing of olecroanon section.

In the present embodiment, pull needle 3 is connected with after ribbon part 2 is connected with Suo Ding 1, on the other end.Specifically, Pull needle 3 is preferably the eyeless suture needle processed using 304 stainless steels, the long 15cm of pin, diameter 1.0mm, hollow straight Footpath 2mm;Certainly, the material and size of pull needle 3 are not limited thereto, and can be selected as the case may be.Pull needle 3 It is attached by connecting line 4 with ribbon part 2, connecting line 4 is the seam woven using ultra-high molecular weight polyethylene Zygonema, length is 3cm or so.Connecting line 4 is attached by the modes such as suture, binding and ribbon part 4, and connection is strong Degree is not less than 60N, to ensure the fastness of connection;Pull needle 3 can be connected to one with connecting line 4 by modes such as mechanical press Rise, and bonding strength is not less than 60N, to ensure the fastness of connection.

The present invention to instruct, develops a kind of operation device of new treatment olecranal fracture with " BO principles ", by The Suo Ding 1 being made of polyether-ether-ketone and a strip adoption ultrahigh molecular weight polyethylene into ribbon part 2 combine The present invention has excellent biocompatibility, it is to avoid stimulation of the implant to implant site, and to solve implant need second operation The problem of taking-up;Ribbon part 2 has relatively low modulus of elasticity, while offer olecroanon is efficiently fixed, effectively The blood supply of fixed position is protected, the postoperative pain of patient is reduced, shortens the recovery period of patient;Ribbon part pair Effective fixed form can be also provided in slight comminuted olecranal fracture;In addition, present invention introduces " minimally invasive " theory, Solve previous procedure complex operation, wound is big, postoperative patient pain, the problems such as local excitation is serious.

Reference picture 7, the below user with regard to the integrated fixing device of the olecranal fracture that provides of the present invention in operation Formula, is further described:

Elbow Posterior midline approach, removes free osteocomma, hemotoncus and soft tissue;

One piece of Kirschner wire is inserted into fracture near-end from olecranon tip, pushes fracture distal end under the holding of Kirschner wire, simultaneously Allow patient to do elbow joint flexion and extension, olecranon articular surface is made using trochoid face mill, be allowed in dissection contraposition;Continue after reset Kirschner wire is inserted into fracture distal end, interim fixation is played;

With two pieces of guide pins be placed on olecroanon dorsal part China and foreign countries 1/3 and at 1/3, just from the remote broken ends of fractured bone pair Pass, drilled with 3.5mm core drill along guide pin in the cortex of bone of side, withdraw from guide pin, the selection Suo Ding 1 that is of convenient length is inserted and put Oar side in fracture distal end, is buried under manadesma;The fixed dress of integration provided generally in operation using two present invention Put, two ribbon parts 2 intersect in the fracture site row figure of eight;The traction banding of pull needle 3 knitted parts 2 pass through the upper arm three The tendon depths of head flesh, finally is being close to below the Suo Ding in bone face tighten up knotting, knot is buried under manadesma, so as to realize chi The fixation of bone olecranal fracture.

Because of those skilled in the art it should be understood that the present invention can be implemented without departing from many other concrete forms The spirit or scope of itself.Although having been described for the case study on implementation of the present invention, it should be understood that the present invention should not be limited to these realities Apply and make change within example, the spirit and scope of the present invention that those skilled in the art can define such as appended claims Change and change.

Claims (9)

1. the integrated fixing device of a kind of olecranal fracture, it is characterised in that including ribbon part and Suo Ding, the band One end of shape knitted parts connects the tail end of the Suo Ding, and the other end of the ribbon part is connected with a pull needle;Institute State Suo Ding and be placed at olecranal fracture and be attached, the ribbon part is pressed at olecranal fracture and tensed solid It is fixed;
It is provided with the Suo Ding tail ends:
Blind hole, is arranged on the tail end end face, and along the axially arranged of the Suo Ding;
Two first through hole, are radially arranged along the Suo Ding, and are communicated with the blind hole;First through hole is symmetrical arranged described in two;
Second through hole, is radially arranged along the Suo Ding and through the Suo Ding;Second through hole away from the tail end end face away from With a distance from more than the first through hole away from the tail end end face;
The ribbon part is entered after sequentially passing through second through hole, first through hole, blind hole by way of beating surgeons' knot Row is fixed, and surgeons' knot is located in the blind hole.
2. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the ribbon portion Divide and formed using ultrahigh molecular weight polyethylene yarn braiding.
3. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the ribbon portion The thickness divided is 0.19~0.21mm, and width is 2.5~4.5mm.
4. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the ribbon portion The maximum anti-pressure ability divided is more than or equal to 60 ± 10MPa, and the elongation at break of the ribbon part is 20%~30%.
5. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the tail end of the Suo Ding The outer surface of end is arranged to the hexagonal structure in section.
6. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the head end of the Suo Ding On be provided with thread segment;The Suo Ding is placed in the olecroanon of fracture, and the thread segment is located in partial fracture part.
7. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the Suo Ding is using poly- Ether ether ketone material is made.
8. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the fracture of the Suo Ding Intensity is more than or equal to 90Mpa.
9. the integrated fixing device of olecranal fracture according to claim 1, it is characterised in that the ribbon portion Divide and the pull needle connected by connecting line, the connecting line is the suture woven using ultra-high molecular weight polyethylene, And the bonding strength between the connecting line and the pull needle, the ribbon part is more than or equal to 60N.
CN201510748139.9A 2015-11-06 2015-11-06 A kind of integrated fixing device of olecranal fracture CN105193484B (en)

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Publication number Priority date Publication date Assignee Title
CN201631365U (en) * 2009-02-24 2010-11-17 曲光;许仁国;王海奎 Internal fixing system of combined tension belt for patellar fracture
CN102579119A (en) * 2012-02-15 2012-07-18 上海市第十人民医院 Pressurization needle cable fixed system for patella fracture and application thereof
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US9072561B2 (en) * 2008-03-25 2015-07-07 The Center For Orthopedic Research And Education, Inc. Spinal facet fixation device
US20090281581A1 (en) * 2008-05-06 2009-11-12 Berg Jeffery H Method and device for securing sutures to bones

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CN201631365U (en) * 2009-02-24 2010-11-17 曲光;许仁国;王海奎 Internal fixing system of combined tension belt for patellar fracture
CN102579119A (en) * 2012-02-15 2012-07-18 上海市第十人民医院 Pressurization needle cable fixed system for patella fracture and application thereof
CN204049821U (en) * 2014-08-20 2014-12-31 北京大学第三医院 Cannulated screw assembly for fixing olecranal fracture
CN205072999U (en) * 2015-11-06 2016-03-09 上海凯利泰医疗科技股份有限公司 Olecranal fracture integration fixing device

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