CN205072999U - Olecranal fracture integration fixing device - Google Patents

Olecranal fracture integration fixing device Download PDF

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Publication number
CN205072999U
CN205072999U CN201520879881.9U CN201520879881U CN205072999U CN 205072999 U CN205072999 U CN 205072999U CN 201520879881 U CN201520879881 U CN 201520879881U CN 205072999 U CN205072999 U CN 205072999U
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CN
China
Prior art keywords
described
fracture
suo ding
ribbon part
olecranal
Prior art date
Application number
CN201520879881.9U
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Chinese (zh)
Inventor
牛志晓
陈波
谢彦杰
王翠翠
孙赟辉
张正文
Original Assignee
上海凯利泰医疗科技股份有限公司
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Priority to CN201520879881.9U priority Critical patent/CN205072999U/en
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Publication of CN205072999U publication Critical patent/CN205072999U/en

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Abstract

The utility model discloses an olecranal fracture integration fixing device, weave subtotal suo ding including the banding, the tail end that suoding is connected to partial one end is woven to the banding, and the banding is woven the partial other end and is connected with one and draws the needle, suo ding places olecranal fracture department in and connects, and partial pressure is woven in olecranal fracture department and taut fixed to the banding. The utility model discloses have good biocompatibility, avoided the stimulation of implant to implanting the position, solved the difficult problem that the operation of implant need secondary was taken out, the banding is woven the part and is had a lower elastic modulus, providing high -efficient in fixed, has effectively protected the blood at fixed position to supply, has reduced the misery of patient's postoperative, has shortened patient's the recovered cycle, the banding is woven the part and is provided effectual fixed mode to slight comminuted olecranal fracture, additionally, the utility model discloses " wicresoft " the theory of introduction, it is complicated to have solved previous operation technique, and the wound is big, and the postoperative patient is painful, the serious scheduling problem of local excitation.

Description

A kind of olecranal fracture integration fixture

Technical field

This utility model relates to Design for Medical Device technical field, is specifically related to a kind of olecranal fracture integration fixture.

Background technology

Proximal ulna rear is positioned at subcutaneous projection and is called olecranon, and the coronoid process of ulna in itself and front forms semilunar notch, this incisura just and trochlea of humerus form chi upper arm joint, chi upper arm joint only has flexion-extension motion.Olecranal fracture refers to the intra-articular fracture involving semilunar notch, and olecranal fracture belongs to intra-articular fracture, is often associated with fracture and the soft tissue injury at other positions, and the reduction of the fracture requires high, and postoperative requirement carries out functional training in early days.

At present, the operation method for the treatment of this fracture conventional is, tension band wiring fixation.The square ratio juris of this operation is, after olecranal fracture, the effect of biceps brachii m., triceps muscle and forearm flexor, olecranon front produces pressure, and rear then tensile stress occurs, and now Kirschner wire, steel wire can overcome rear tensile stress, sclerite is made not produce separation, ring like steel wire is firmly fixed herein, and the Dynamic compression effect of muscle contraction generation in addition, can promote the healing of fracturing.Tension band wiring fixes the tissue do not needed around extensive cleavage fracture, and patient damages little, and does not need to adopt special instrument, has firm, reliable advantage.

The defect that this operation method exists is, under steel wire, soft tissue is more, the pressure of patient's sensation tension band when performing the operation is very large, but the postoperative functional recovery training along with joint, the repeated action of pressure, the soft tissue meeting ischemic necrosis under steel wire, liquefaction, absorption, fibrosis, make tension band wire loosen, do not play the effect of dynamic pressurization, cause fixing unsuccessfully.

Also to be that Kirschner wire can protrude from subcutaneous for existing defects, causes patient pain, discomfort, cause Kirschner wire migration, slippage, loosen, steel wire fracture, skin infection etc., and art complicated operation, wound is comparatively large, needs second operation to take out internal fixtion.

For comminuted fracture patient, especially merge coronoid process fracture and involve head of radius person adopts tension band wiring internal fixtion to reach anatomical reduction, and tension band tension very easily causes producing larger slip and compression displacement between sclerite, cause coaster olecranon to close internode and occur involutory exception, affect function of joint, finally cause patient to occur traumatic arthritis.Research shows, tension band wiring internal fixtion easily causes shortening of olecranon position or oppresses, and makes conjunction faced by semilunar notch and trochoid inconsistent, causes malunion of fracture, cause osteoarthritis.

Utility model content

This utility model provides a kind of olecranal fracture integration fixture, and comprise ribbon part and Suo Ding, one end of described ribbon part connects the tail end of described Suo Ding, and the other end of described ribbon part is connected with a pull needle; Described Suo Ding is placed in olecranal fracture place and connects, and described ribbon part is pressed in olecranal fracture place and is strained and fixed.

Preferably, described ribbon part adopts ultrahigh molecular weight polyethylene yarn braiding to form.

Preferably, the thickness of described ribbon part is 0.19 ~ 0.21mm, and width is 2.5 ~ 4.5mm.

Preferably, the maximum anti-pressure ability of described ribbon part is more than or equal to 60 ± 10MPa, and the elongation at break of described ribbon part is 20% ~ 30%.

Preferably, described Suo Ding tail end is provided with:

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

Two first through holes, arrange along described Suo Ding radial direction, and communicate with described blind hole; Described in two, the first through hole is symmetrical arranged;

Second through hole, arranges along described Suo Ding radial direction and runs through described Suo Ding; Described second through hole is greater than the distance of described first through hole apart from described tail end end face apart from the distance of described tail end end face;

Described ribbon part is fixed by the mode of beating surgical knot through after described second through hole, the first through hole, blind hole successively, and surgical knot is positioned at described blind hole.

Preferably, the outer surface of the tail end end of described Suo Ding is arranged to cross section is hexagonal structure.

Preferably, the head end of described Suo Ding is provided with thread segment, described Suo Ding is placed in the olecroanon of fracture, and described thread segment is positioned at partial fracture part.

Preferably, described Suo Ding adopts polyetheretherketonematerials materials to be made.

Preferably, the fracture strength of described Suo Ding is more than or equal to 90Mpa.

Preferably, described ribbon part connects described pull needle by connecting line, described connecting line is the stitching thread adopting ultra-high molecular weight polyethylene braiding, and described connecting line and described pull needle, bonding strength between described ribbon part are more than or equal to 60N

This utility model, owing to adopting above technical scheme, makes it compared with prior art, has following advantage and good effect:

(1) this utility model provide olecranal fracture integration fixture, with " BO principle " for instructing, the ribbon incorporating aspects become with a strip adoption ultrahigh molecular weight polyethylene by the Suo Ding adopting polyether-ether-ketone to make forms, there is excellent biocompatibility, avoid the stimulation of implant to implant site, solve the difficult problem that implant needs second operation to take out;

(2) in this utility model, ribbon part has lower elastic modelling quantity, and while providing olecroanon efficiently to fix, the available protecting blood confession of fixed position, reduces the misery after operation in patients, shorten the recovery period of patient; Ribbon part also can provide effective fixed form for slight comminuted olecranal fracture;

(3) in this utility model, the drill way layout of Suo Ding tail end is used for being connected with ribbon part, ensure that knotting part is buried in the blind hole of Suo Ding tail end, has prevented protrusion foreign body sensation;

(4) in this utility model, the hexagonal of Suo Ding tail end designs, and making when not needing to carry out enlarging or less reaming to the drilling end on olecroanon, the end of Suo Ding also can be made not stretch out boring; In addition, also the convenient general spiral shell vertebra with following closely 1 for pass line is supporting;

(5) in this utility model, Suo Ding upper part is provided with thread segment, and making can have slight activity between the olecroanon section that fixes, plays the effect of dynamic pressurization, is conducive to the healing of olecroanon section;

(6) problems such as this utility model introduces " Wicresoft " theory, solves previous procedure complicated operation, and wound is large, and postoperative patient pain, local excitation are serious; This fixture is applicable to the assistance application of Bone Injury and reparation, fracture fixation, dislocation and other bone fusion.

Accompanying drawing explanation

By reference to the accompanying drawings, by hereafter state detailed description, more clearly can understand above-mentioned and other feature and advantage of the present utility model, wherein:

Fig. 1 is the structural representation of this utility model olecranal fracture integration fixture;

Fig. 2 is the structural representation of Suo Ding in this utility model;

Fig. 3 is the partial schematic diagram of Suo Ding tail end in this utility model;

Fig. 4 is the sectional view one of Fig. 3;

Fig. 5 is the sectional view two of Fig. 3;

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

Fig. 7 is the connection diagram of this utility model olecranal fracture integration fixture and ulna.

Symbol description:

1-Suo Ding

11-thread segment

12-cross section is hexagonal structure

13-shallow slot

14-second through hole

15-first through hole

16-blind hole

2-ribbon part

3-pull needle

4-connecting line

51-first fractures

52-second fractures.

Detailed description of the invention

See the accompanying drawing that this utility model embodiment is shown, hereafter in more detail this utility model will be described.But this utility model can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present utility model completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.

With reference to Fig. 1-7, this utility model provides a kind of olecranal fracture integration fixture, includes Suo Ding 1 and ribbon part 2, ribbon part 2 one end connecting strand nail 1, and the other end is connected with pull needle 3; Suo Ding 1 to be placed in the reserved boring in olecranal fracture place and to be fixed by screw thread, tentatively connects each several part of the olecroanon of having fractured; Ribbon part 2 one end is fixed on olecroanon by Suo Ding 1, and ribbon part 2 is positioned at the outside of olecroanon; Ribbon part 2 is pressed in olecranal fracture place, and the other end is connected to triceps brachii under the effect of pull needle 3; Be provided with two integrated fixtures in usual operation process, two ribbon parts 2 carry out tightening up knotting after wearing solid triceps brachii, and two ribbon parts 2 intersections are pressed in olecranal fracture place, thus realize the fixing of olecranal fracture portion.

Concrete, ribbon part 2 adopts ultra-high molecular weight polyethylene (UHMWPE) yarn to weave and forms, to take out without the need to second operation after making ribbon part 2 implant, reduce the generation of side reaction, this strength of materials is higher simultaneously; First yarn can be woven into tubular during concrete braiding, then warp loom pressing is shaped into banded structure, the weaving manner of certain ribbon part 2, not as limit, is not restricted herein; Woven ribbon part 2 forms some equally distributed mesh, and the shape of mesh can be square, rectangle etc., is not restricted herein.

The thickness preferably 0.19 ~ 0.21mm of ribbon part 2, ribbon part 2 can not be too thick, prevents Post operation from forming projection, to ensure the planarization of articular surface, can not be too thin, to ensure the intensity of ribbon part 2.The width of ribbon part 2 preferably width is 2.5 ~ 4.5mm, and the choosing value of its width specifically can be determined according to the size of olecroanon, is usually provided with multiple specification such as 2.5mm, 3.0mm, 3.5mm for you to choose.The length of ribbon part 2 can set as the case may be, is usually set to 30cm.

Above-mentioned each size about ribbon part 2, the setting of occurrence is not all done in this utility model, while setting as the case may be, need ensure that the maximum tensile strength of ribbon part 2 is not less than 60 ± 10MPa, to ensure that ribbon part 2 effectively can fix the olecroanon of fracture, make its not easy fracture.In addition, also must ensure that the elongation at break of ribbon part 2 is not less than 20%; The elongation at break of ribbon part 2 can not be too large, too conference makes ribbon part 2 occur the phenomenon relaxed after a long time use, the elongation at break of ribbon part 2 can not be too little, too little meeting makes ribbon part cause compressing to olecroanon, the problem such as cause blood circulation not smooth, the scope of the elongation at break of preferred ribbon part 2 is 20% ~ 30%.

This utility model replaces wire of the prior art etc. by ribbon part 2, flexible ribbon part 2 adds the area contacting standing part with olecroanon 1, reduce the pressure that contact standing part unit are is born, protect the local blood fortune of the portion of tissue that is fixed, avoid the generation of tissue necrosis; Meanwhile, flexible tape knitted parts 2 has low elastic modulus, has certain micro-bullet self-lock ability; make fixing more firm, provide efficient fixing while, the blood of available protecting fixed position supplies; reduce the misery after operation in patients, shorten the recovery period of patient.In addition, ribbon part 2, for slight comminuted olecranal fracture, also can provide effective fixing.

In the present embodiment, one end of ribbon part 2 is connected on the tail end of Suo Ding 1.Wherein, Suo Ding 1 adopts polyetheretherketonematerials materials (PEEK material) or titanium alloy to be made, the Suo Ding 1 of PEEK, titanium alloy material is excellent with the bio-compatible performance of the ribbon part 2 of UHMWPE material, second operation is not needed to take out after implantation, and the generation of many side reactions such as pessimal stimulation and inflammation greatly.The diameter of Suo Ding 1 can be 4mm, and length can be the plurality of specifications such as 40mm, 45mm, 50mm, 55mm, 60mm; Each size of Suo Ding 1 all can set according to concrete condition, is not restricted herein; The fracture strength of Suo Ding 1 is not less than 90Mpa, to ensure the bonding strength of Suo Ding 1.

Tail end as Fig. 3-5, Suo Ding 1 is also provided with blind hole 16, first through hole 15 and the second through hole 14, fixing for ribbon part 2.Concrete, blind hole 16 is arranged on Suo Ding 1 tail end end face, and extended along the axis of Suo Ding 1; Suo Ding 1 being provided with two the first through hole 15, first through holes 15 extends in blind hole 16 from the setting of Suo Ding 1 lateral surface, and the first through hole 15 communicates with blind hole 16, and preferred first through hole 15 is arranged along the radial direction of Suo Ding 1, and two first through holes 15 are symmetrical arranged; Second through hole 14 is arranged from Suo Ding 1 side, extends through Suo Ding 1, and the second through hole 14 is greater than the distance of the first through hole 15 apart from Suo Ding tail end end face apart from the distance of Suo Ding 1 tail end end face, and preferred second through hole 14 is arranged along the radial direction of Suo Ding 1.

Ribbon part 3 is as follows with the concrete connection procedure of Suo Ding 1:

Ribbon part 3 through the second through hole 14, ribbon part 2 two ends are each passed through two the first through holes 15 again, and pass from the opening of blind hole 16 again, the two ends of ribbon part 1 are fixed by the mode of beating surgical knot, and ensure that the bonding strength between ribbon part 2 and Suo Ding 1 is not less than 60N; Knotting part can be filled in blind hole 16, realizes hiding, and has prevented protrusion foreign body sensation.

With reference to Fig. 3,6, the lateral surface of the Suo Ding 1 that the second through hole 14 two ends are corresponding is respectively arranged with a shallow slot 13, and the outboard end of two first through holes 15 is also positioned at shallow slot 13, thus make the ribbon part be located between the first through hole 15 and the second through hole 14 be positioned at shallow slot 13, prevent the surface that ribbon part 2 protrudes Suo Ding 1 from producing foreign body sensation.

Suo Ding 1 inserts in boring default on olecroanon, the tail end of Suo Ding 1 must not stretch out boring to prevent foreign body sensation, therefore need in prior art to carry out expanding treatment to the end of boring, the bone wall of drilling end certainly will be caused so thinner, easily occur the problems such as slight crack.As shown in Figure 2, being arranged to cross section by the outer surface of the tail end end by Suo Ding 1 in this utility model is hexagonal structure 12, thus the diameter of structure 12 is diminished, thus make when not needing to carry out enlarging or less reaming to drilling end, the end of Suo Ding 1 also can be made not stretch out boring; In addition, cross section is that the convenient general spiral shell vertebra with following closely 1 for pass line of hexagonal structure 12 is supporting.

As shown in Figure 2, the head end of Suo Ding 1 is also provided with on thread segment 11, Suo Ding 1 and is not entirely provided with screw thread, thread segment 11 only accounts for the part near head end; As shown in Figure 7, when Suo Ding 1 connect be broken into the first fractures 51, second fractures 52 two-part time, Suo Ding 1 half is positioned at the first fractures 51, and second half is positioned at the second fractures 52, and ensure thread segment 11 be only positioned at the second fractures 52; This utility model, by above-mentioned setting, makes can there be slight activity between the olecroanon section that fixes, plays the effect of dynamic pressurization, be conducive to the healing of olecroanon section.

In the present embodiment, after ribbon part 2 is connected with Suo Ding 1, the other end is connected with pull needle 3.Concrete, the eyeless suture needle that pull needle 3 preferably adopts 304 rustless steels to process, the long 15cm of pin, diameter 1.0mm, inflated diameter 2mm; Certainly, the material of pull needle 3 and size, not as limit, can be selected as the case may be.Pull needle 3 is connected with ribbon part 2 by connecting line 4, and connecting line 4 is the stitching thread adopting ultra-high molecular weight polyethylene braiding, and length is about 3cm.Connecting line 4 is connected with ribbon part 4 by modes such as stitching, bindings, and bonding strength is not less than 60N, to ensure the fastness connected; Pull needle 3 and connecting line 4 link together by modes such as mechanical press, and bonding strength is not less than 60N, to ensure the fastness connected.

This utility model is instruct with " BO principle ", develop a kind of operation device of novel treatment olecranal fracture, the ribbon part 2 become with a strip adoption ultrahigh molecular weight polyethylene by the Suo Ding 1 adopting polyether-ether-ketone to make combines. and this utility model has excellent biocompatibility, avoid the stimulation of implant to implant site, solve the difficult problem that implant needs second operation to take out; Ribbon part 2 has lower elastic modelling quantity, and while providing olecroanon efficiently to fix, the available protecting blood confession of fixed position, reduces the misery after operation in patients, shorten the recovery period of patient; Ribbon part also can provide effective fixed form for slight comminuted olecranal fracture; The problems such as in addition, this utility model introduces " Wicresoft " theory, solves previous procedure complicated operation, and wound is large, and postoperative patient pain, local excitation are serious.

With reference to Fig. 7, below with regard to the occupation mode of olecranal fracture integration fixture in operation that this utility model provides, be further described:

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

One piece of Kirschner wire being inserted fracture near-end from olecranon tip, under the holding of Kirschner wire, pushes far-end of fracturing to, allow patient do elbow joint flexion and extension simultaneously, utilize trochoid face to grind and make olecranon articular surface, making it in dissecting para-position; Continue Kirschner wire to insert fracture far-end after resetting, play temporary fixed effect;

With two pieces of guide pins be placed on olecroanon dorsal part China and foreign countries 1/3 and in 1/3 place, just pass from the cortical bone of broken ends of fractured bone offside far away, hole along guide pin with the core drill of 3.5mm, withdraw from guide pin, select be of convenient length Suo Ding 1 insert be placed in fracture far-end oar side, bury under fascia; Adopt the integrated fixture that two this utility model provide in usual operation, two ribbon parts 2 are intersected in the capable figure of eight of fracture site; Pull needle 3 draws the tendon depths of banded knitted parts 2 through triceps brachii, finally tightens up knotting being close to below the Suo Ding of surface of bone, knot is buried under fascia, thus realizes the fixing of olecranal fracture.

Because those skilled in the art should be understood that this utility model can not depart from the spirit or scope of itself with many other concrete forms realizations.Although described case study on implementation of the present utility model, this utility model should be understood and should not be restricted to these embodiments, within the spirit and scope of the present utility model that those skilled in the art can define as appended claims, make change and amendment.

Claims (10)

1. an olecranal fracture integration fixture, it is characterized in that, comprise ribbon part and Suo Ding, one end of described ribbon part connects the tail end of described Suo Ding, and the other end of described ribbon part is connected with a pull needle; Described Suo Ding is placed in olecranal fracture place and connects, and described ribbon part is pressed in olecranal fracture place and is strained and fixed.
2. olecranal fracture integration fixture according to claim 1, is characterized in that, described ribbon part adopts ultrahigh molecular weight polyethylene yarn braiding to form.
3. olecranal fracture integration fixture according to claim 1, it is characterized in that, the thickness of described ribbon part is 0.19 ~ 0.21mm, and width is 2.5 ~ 4.5mm.
4. olecranal fracture integration fixture according to claim 1, it is characterized in that, the maximum anti-pressure ability of described ribbon part is more than or equal to 60 ± 10MPa, and the elongation at break of described ribbon part is 20% ~ 30%.
5. olecranal fracture integration fixture according to claim 1, is characterized in that, described Suo Ding tail end is provided with:
Blind hole, is arranged on described tail end end face, and arranges along the axis of described Suo Ding;
Two first through holes, arrange along described Suo Ding radial direction, and communicate with described blind hole; Described in two, the first through hole is symmetrical arranged;
Second through hole, arranges along described Suo Ding radial direction and runs through described Suo Ding; Described second through hole is greater than the distance of described first through hole apart from described tail end end face apart from the distance of described tail end end face;
Described ribbon part is fixed by the mode of beating surgical knot through after described second through hole, the first through hole, blind hole successively, and surgical knot is positioned at described blind hole.
6. according to claim 1 or 5 olecranal fracture integration fixture, it is characterized in that, it is hexagonal structure that the outer surface of the tail end end of described Suo Ding is arranged to cross section.
7. according to claim 1 or 5 olecranal fracture integration fixture, it is characterized in that, the head end of described Suo Ding is provided with thread segment; Described Suo Ding is placed in the olecroanon of fracture, and described thread segment is positioned at partial fracture part.
8. olecranal fracture integration fixture according to claim 1, it is characterized in that, described Suo Ding adopts polyetheretherketonematerials materials to be made.
9. olecranal fracture integration fixture according to claim 1, it is characterized in that, the fracture strength of described Suo Ding is more than or equal to 90Mpa.
10. olecranal fracture integration fixture according to claim 1, it is characterized in that, described ribbon part connects described pull needle by connecting line, described connecting line is the stitching thread adopting ultra-high molecular weight polyethylene braiding, and described connecting line and described pull needle, bonding strength between described ribbon part are more than or equal to 60N.
CN201520879881.9U 2015-11-06 2015-11-06 Olecranal fracture integration fixing device CN205072999U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520879881.9U CN205072999U (en) 2015-11-06 2015-11-06 Olecranal fracture integration fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520879881.9U CN205072999U (en) 2015-11-06 2015-11-06 Olecranal fracture integration fixing device

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105193484A (en) * 2015-11-06 2015-12-30 上海凯利泰医疗科技股份有限公司 Integrated fixing device for olecranal fracture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105193484A (en) * 2015-11-06 2015-12-30 上海凯利泰医疗科技股份有限公司 Integrated fixing device for olecranal fracture
CN105193484B (en) * 2015-11-06 2017-09-29 上海凯利泰医疗科技股份有限公司 A kind of integrated fixing device of olecranal fracture

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