CN208481528U - Mixed type artificial ligament - Google Patents
Mixed type artificial ligament Download PDFInfo
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- CN208481528U CN208481528U CN201721541784.4U CN201721541784U CN208481528U CN 208481528 U CN208481528 U CN 208481528U CN 201721541784 U CN201721541784 U CN 201721541784U CN 208481528 U CN208481528 U CN 208481528U
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- weft yarn
- pole structure
- knit unit
- osseous tunnel
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Abstract
The utility model provides a kind of mixed type artificial ligament, includes pole structure, and pole structure in axial direction forms sequentially connected first osseous tunnel knit unit, intra-articular free silk portion, the second osseous tunnel knit unit；Pole structure includes warp thread and weft yarn；The a plurality of weft yarn includes the first weft yarn and the second weft yarn, and the first weft yarn is made of degradable material, and the second weft yarn is made of non-degradable material；First osseous tunnel knit unit, the second osseous tunnel knit unit include warp thread and weft yarn；Intra-articular free silk portion only includes weft yarn.Ligament material is made of biodegradable and non-degradable two parts in the utility model: in degradation process, surrounding tissue can be attached on graft biodegradable material, and ligament autologous tissue can climb and grow into onto graft；Non-degradable material can then provide permanent mechanical strength and support.
Description
Technical field
The utility model relates to medical instruments fields, and in particular, to a kind of mixed type artificial ligament.
Background technique
ACL, which rebuilds graft, can be divided into natural ligament graft, allosome implantation of ligament object according to source, and artificial tough
Band graft.Wherein natural ligament graft mostlys come from kneecap Jian, Hams (HT), the gracilis tendon of patient itself
With stock market trend prediction etc..Allosome implantation of ligament object is the available graft tendon that donor provides.However, being self group
It knits or allosome tissue, the postoperative process for having a moulding again, therefore (half a year to 1 year) no in postoperative a very long time
Very aggravating activities can be participated in.The shortcomings that artificial ligament graft is to avoid above-mentioned self and allograft and develop
Artificial graft, be avoided that when natural ligament graft takes tendon to the secondary injury of sufferer and due to taking tendon to transport patient itself
The damage of dynamic function, and can be to avoid allograft cross-infection and the insufficient risk of donor.It is more importantly artificial
Implantation of ligament object can allow patient to restore normally to move and live in a relatively short period of time, for sportsman, wish to restore fortune
The gerontal patient of kinetic force and require the patient for restoring and enjoying good quality of life as early as possible especially suitable.Clinical application at present compared with
More and more mature artificial ligaments be France LARS artificial ligament, be it is a kind of with synthesize PET polyester material be made
Artificial ligament.But the disadvantage of LARS ligament maximum is that its original material is not biodegradable, is unfavorable for human body autologous tissue
Grow into, after implantation can not moulding again, tissue ligament can not be re-started by host.In the long run, LARS ligament is more
Play the role of mechanical strength support.For doctor and patient, with greater need for one kind can provide good intensity support and
Neng Shi patient autologous tissue grows into implantation of ligament object, promotes a kind of ligament of graft moulding again.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of mixed type artificial ligaments.
It include pole structure according to mixed type artificial ligament provided by the utility model, pole structure in axial direction shape
At sequentially connected first osseous tunnel knit unit, intra-articular free silk portion, the second osseous tunnel knit unit；
Pole structure includes warp thread and weft yarn, and the warp thread extends along pole structure axial direction, and the weft yarn is along pole
Structure circumferential direction extends；The a plurality of weft yarn includes the first weft yarn and the second weft yarn, and the first weft yarn is made of degradable material,
Second weft yarn is made of non-degradable material；
First osseous tunnel knit unit, the second osseous tunnel knit unit include warp thread and weft yarn；Intra-articular free silk portion is only wrapped
Containing weft yarn.
Preferably, the first weft yarn is sequentially arranged on pole structure circumferentially extending direction with the second weft yarn, the first weft yarn phase
It is located at the radial outside of pole structure to the second weft yarn；Alternatively,
First weft yarn and the second weft yarn take turns flow arrangement on pole structure circumferentially extending direction.
Preferably, pole feature cross-section shape is spiral shape, 8-shaped or C-shaped.
Preferably, pole structure length is 150~250mm, and pole structure is directly 5.5~10mm, intra-articular free silk
Minister's degree is 10~40mm；
The ratio that first weft yarn quantity accounts for weft yarn total quantity is 10%~80%.
Preferably, first weft yarn is made of following any or various material:
--PLLA；
--PLGA；
-- collagen；
Second weft yarn is made of PET or UHMWPE material.
Preferably, the cross section shape of the two marrow road knit units of the first osseous tunnel knit unit Yu the second osseous tunnel knit unit
Shape is petal；
Petal marrow road knit unit includes valve body, the first suture and the second suture；
Multiple valve bodies are arranged along circumferential direction；First suture sews on valve body along single valve body circumferential direction, the
Two sutures sew in marrow road knit unit along marrow road knit unit outer profile circumferential direction.
Preferably, tolerant gap is formed between two neighboring valve body；
Filling member is provided in the tolerant gap, the filling member is made of degradable material.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, ligament material is made of biodegradable and non-degradable two parts in the utility model: biodegradable material
In degradation process, surrounding tissue can be attached on graft, and ligament autologous tissue can climb and grow into onto graft；It can not
Degradation material can then provide permanent mechanical strength and support.
2, biodegradable material can be decomposed gradually over a period to come in the utility model, and catabolite can be with
Human normal metabolism discharge, does not have any side effect to human body.
3, climbing and growing into ligament autologous tissue, implantation of ligament object is by reorganization fibrosis and human body itself
Organize the formation of a community, for patient provide better motor function and kinesthesia by.
4, the utility model using the yarn of single material as minimum weaving unit, compared to using various material silk thread to compile
The blended yarns being made into, the utility model materials are easier, and structure is finer and closely woven, and intensity is also bigger.
5, the utility model use petal osseous tunnel knit unit structure, on the one hand facilitate ligament own components grow into
In gap between valve body；On the other hand, by the trend mutually clamped between valve body, it is strong to further increase final fixation
Degree.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is mixed type artificial ligament structural schematic diagram provided by the utility model；
Fig. 2 is the structural schematic diagram for the woven fabric that the first weft yarn and the second weft yarn are sequentially arranged acquisition；
Fig. 3 is that the first weft yarn and the second weft yarn are sequentially arranged manufactured mixed type artificial ligament left view；
Fig. 4 is the structural schematic diagram for the woven fabric that the first weft yarn and the second weft yarn wheel flow arrangement obtain；
Fig. 5 is petal osseous tunnel knit unit structural schematic diagram；
Fig. 6 is structural schematic diagram after being sewed again using suture to petal osseous tunnel knit unit.
It is shown in figure:
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
As shown in Figure 1 to Figure 3, in embodiment, mixed type artificial ligament provided by the utility model includes pole structure 1,
The pole structure 1 is rolled by woven fabric 2 to be formed, and the woven fabric 2 includes warp thread 4 and weft yarn, and the warp thread 4 is along 2 length side of woven fabric
To extension, the weft yarn extends along 2 width direction of woven fabric.Wherein weft yarn contains the first weft yarn 31 and the second weft yarn 32, and first
Weft yarn 31 is made of degradable material, and the second weft yarn 32 is made of non-degradable material；Warp thread 4 is then by non-degradable material system
At.Woven fabric 2 forms sequentially connected first knit unit 21, free silk portion 23, the second knit unit 22 on length extending direction, the
One knit unit 21, the second knit unit 22 are made of warp thread 4 with weft yarn；Free silk portion 23 is then only made of weft yarn.
In embodiment, as shown in Figure 2 and Figure 3, first weft yarn 31 and the second weft yarn 32 are in 2 width extending direction of woven fabric
On be sequentially arranged, woven fabric 2 roll obtaining using long axis as rotary shaft from 32 place end of the second weft yarn to 31 place end of the first weft yarn
Obtain pole structure 1, that is to say, that in the pole structure 1 finally obtained, cross-sectional shape is spiral shape, and the first weft yarn 31 is located at
Radial outside, the second weft yarn 32 are located at radially inner side.In change case, as shown in figure 4, first weft yarn 31 and the second weft yarn 32
Flow arrangement is taken turns, the woven fabric 2 is using long axis as rotary shaft, from the wherein one end at the both ends in the width direction of woven fabric 2 to woven fabric 2 along width
The other end in direction, which roll, obtains pole structure 1；Alternatively, the woven fabric 2 is using long axis as rotary shaft, from woven fabric 2 along width
The both ends in direction, which roll to the centerline of woven fabric 2 in the width direction, obtains pole structure 1.Preferably, along width two
It holds during being rolled to center line, both ends can be to be rolled on the same face, and cross-sectional shape is C after the completion of rolling
Shape；It is also possible to roll in upper and lower two different planes, cross-sectional shape is 8-shaped after the completion of rolling.
The pole structure 1 in axial direction forms sequentially connected first osseous tunnel knit unit 11, intra-articular free silk
Portion 13, the second osseous tunnel knit unit 12, the first osseous tunnel knit unit 11, intra-articular free silk portion 13, the second osseous tunnel knit unit
12 correspond with the first knit unit 21, free silk portion 23, the second knit unit 22 respectively.That is, woven fabric 2 rolls into pole
After structure 1, the first knit unit 21, free silk portion 23, the second knit unit 22 have respectively become the first osseous tunnel knit unit 11, joint
Interior free silk portion 13, the second osseous tunnel knit unit 12.Preferably, more first weft yarns 31 in one piece of woven fabric 2 are in degradation speed
Degree exists different, the effect can be reached by two ways: first is that the first weft yarn 31 of same material be arranged in it is different
In general position is greater than the degradation speed of the first internally positioned weft yarn 31 positioned at the degradation speed of the first external weft yarn 31
Degree；It is another then be the first weft yarn 31 using various material, the differentiation of degradation speed is realized by the characteristic of material itself.It is excellent
Selection of land, first weft yarn 31 are made of following any or various material: PLLA；PLGA；Collagen.Preferably,
Two weft yarns 32 are made of PET, UHMWPE or other materials with good biocompatibility.Preferably, the pole structure 1
Length be 150~250mm, pole structure 1 directly through be 5.5~10mm, intra-articular free 13 length of silk portion be 10~40mm, first
The ratio that 31 quantity of weft yarn accounts for weft yarn total quantity is 10%~80%.
As shown in Figure 5, Figure 6, the first osseous tunnel knit unit 11 and the two marrow roads of the second osseous tunnel knit unit 12 weave
The cross-sectional shape in portion is that petal, petal marrow road knit unit includes valve body 51, the first suture 61 and the second suture
62.Multiple valve bodies 51 arrange that the first suture 61 sews on valve body 51 along single valve body circumferential direction along circumferential direction；The
Two sutures 62 sew in marrow road knit unit along marrow road knit unit outer profile circumferential direction.In the constraint of the first suture 61
Under, valve body 51 forms similar round, between two neighboring valve body 51 cannot precision draw close, but form tolerant gap 52, the appearance
Filling member 7 is provided in object gap 52, the filling member 7 is made of degradable material.In actual use, tolerant gap 52
In fill in filling member 7 after, valve body 51 has squeezing action to filling member 7, prevent filling member 7 from falling off, when filling member 7 be implanted into bone cavity in
It can constantly degrade, human body ligament tissue can then enter in the space generated after filling member 7 is degraded, increase and compile with osseous tunnel
The connection area between portion is knitted, and then increases the stability of connection；After human body ligament tissue fills full tolerant gap 52, valve body
Extruding force between 51 and valve body 51 can also further strengthen the fixed function to human body ligament tissue.
Embodiment one:
A kind of PLLA multifilament long filament and a kind of PET multifilament long filament are selected, weaves a kind of knitting for Fig. 2 structure on 2 machine of woven fabric
Cloth 2.The weft yarn of woven fabric 2 is made of PLLA yarn and PET yarn, and the warp thread 4 of woven fabric 2 is made of PET yarn.PLLA yarn is located at
One end of woven fabric 2, the ratio that PLLA yarn accounts for 2 warp thread 4 of woven fabric is 40%.Woven fabric 2 is first wound when sewing, from woven fabric 2PET yarn
End starts successively winding, until PLLA yarn ends terminate, forms a fine and close round bar shape shape.With crochet hook or sewing needle after winding
The suture of 2 both ends knit unit of woven fabric fixes.This ligament be a kind of PLLA yarn outer layer, PET yarn inner core knot
Structure, cross-sectional view are as shown in Figure 3.
Embodiment two:
A kind of PLGA long filament multifilament and a kind of UHMWPE long filament multifilament are selected, a kind of Fig. 4 structure is woven on 2 machine of woven fabric
Woven fabric 2.2 weft yarn of woven fabric is made of 1 PLGA yarn and 1 UHMWPE yarn alternate intervals, is also possible to 2 PLGA yarns
3 UHMWPE of 2 UHMWPE yarns or 2 PLGA yarns are alternately arranged etc..When sewing, woven fabric 2 is first wound, first finds and knits
Woven fabric 2, is wound to centerline to centre since both ends by 2 weft yarn center line of cloth, forms two dense cylindricals.Then it uses
Two dense cylindrical woven fabrics 2 are stitched into a pole shape by crochet hook or suture needle.This degradable PLGA weft yarn of ligament
It is coexisted in ligament overall structure with the mixing of non-degradable UHMWPE weft yarn.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (7)
1. a kind of mixed type artificial ligament, which is characterized in that include pole structure (1) that pole structure (1) is in axial direction formed
Sequentially connected first osseous tunnel knit unit (11), intra-articular free silk portion (13), the second osseous tunnel knit unit (12)；
Pole structure (1) includes warp thread (4) and weft yarn, and the warp thread (4) extends along pole structure (1) axial direction, the latitude
Yarn extends along pole structure (1) circumferential direction；The a plurality of weft yarn includes the first weft yarn (31) and the second weft yarn (32), the first latitude
Yarn (31) is made of degradable material, and the second weft yarn (32) is made of non-degradable material；
First osseous tunnel knit unit (11), the second osseous tunnel knit unit (12) include warp thread (4) and weft yarn；Intra-articular free silk
Portion (13) only includes weft yarn.
2. mixed type artificial ligament according to claim 1, which is characterized in that the first weft yarn (31) and the second weft yarn (32)
It is sequentially arranged on pole structure (1) circumferentially extending direction, the first weft yarn (31) is located at pole structure with respect to the second weft yarn (32)
(1) radial outside；Alternatively,
Flow arrangement is taken turns on pole structure (1) circumferentially extending direction in first weft yarn (31) and the second weft yarn (32).
3. mixed type artificial ligament according to claim 2, which is characterized in that pole structure (1) cross-sectional shape is spiral shell
Revolve shape, 8-shaped or C-shaped.
4. mixed type artificial ligament according to claim 1, which is characterized in that pole structure (1) length be 150~
250mm, pole structure (1) are directly 5.5~10mm, and intra-articular free silk portion (13) length is 10~40mm；
The ratio that first weft yarn (31) quantity accounts for weft yarn total quantity is 10%~80%.
5. mixed type artificial ligament according to claim 1, which is characterized in that first weft yarn (31) is by following any
Kind appoints a various material to be made:
--PLLA；
--PLGA；
-- collagen；
Second weft yarn (32) is made of PET or UHMWPE material.
6. mixed type artificial ligament according to claim 1, which is characterized in that the first osseous tunnel knit unit (11) and second
The cross-sectional shape of the two marrow road knit units of osseous tunnel knit unit (12) is petal；
Petal marrow road knit unit includes valve body (51), the first suture (61) and the second suture (62)；
Multiple valve bodies (51) are arranged along circumferential direction；First suture (61) is sewed along single valve body (51) circumferential direction in valve
On body (51), the second suture (62) sews in marrow road knit unit along marrow road knit unit outer profile circumferential direction.
7. mixed type artificial ligament according to claim 6, which is characterized in that formed and held between two neighboring valve body (51)
Object gap (52)；
It is provided with filling member (7) in the tolerant gap (52), the filling member (7) is made of degradable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541784.4U CN208481528U (en) | 2017-11-17 | 2017-11-17 | Mixed type artificial ligament |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541784.4U CN208481528U (en) | 2017-11-17 | 2017-11-17 | Mixed type artificial ligament |
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| CN208481528U true CN208481528U (en) | 2019-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970081A (en) * | 2017-11-17 | 2018-05-01 | 上海利格泰生物科技有限公司 | Mixed type artificial ligament and manufacture method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970081A (en) * | 2017-11-17 | 2018-05-01 | 上海利格泰生物科技有限公司 | Mixed type artificial ligament and manufacture method |
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Address after: 201700 Room 301, Building 1, No. 508 Tianchen Road, Qingpu District, Shanghai Patentee after: Shanghai Ligetai Biotechnology Co.,Ltd. Address before: 201700 Room 301, Building 1, No. 508 Tianchen Road, Qingpu District, Shanghai Patentee before: SHANGHAI LIGETAI BIOLOGICAL TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |