CN214259573U - Interface rivet weaving nail sheath device - Google Patents

Abstract

The utility model discloses an interface anchor woven nail sheath device, including woven nail sheath and anchor nail, woven nail sheath includes a plurality of tail end interconnect's component piece and stylolite, has the interval between the adjacent component piece, and the stylolite begins to be connected to the head end with adjacent component piece from the tail end, and woven nail sheath forms cladding internal diameter adjustable sheath portion, and sheath portion parcel anchor surface. The utility model discloses it is soft to weave nail sheath overall structure, through adjusting the cladding internal diameter of weaving nail sheath tail end stylolite rate of tension regulation formation to laminating the anchor surface as far as possible, forming the overall structure that has the anchor implantation system of weaving the nail sheath, the utility model discloses improve and implant the bone way area of contact at the soft braided wire sheath of stereoplasm anchor surface cladding, improved whole system pull out power greatly, weave the nail sheath and form anchor and the natural isolated barrier of soft tissue when the fixed soft tissue of cladding interface anchor, with the tear or cut off of avoiding the anchor to the soft tissue to it twists reverse to reduce the time shifting plant of anchor implantation emergence.

Description

Interface rivet weaving nail sheath device

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to an interface anchor nail woven nail sheath device.

Background

The interface screw fixation directly secures the graft within the bone tunnel by compression, bringing the fixation point closer to the anatomical stop, structurally equivalent to anatomical fixation. For example, in an Anterior Cruciate Ligament (ACL) replacement procedure, a ligament graft is taken from a patient or donor and implanted into the knee by securing one end in a bone tunnel through the tibia, which is the weakest site in the reconstruction of the anterior cruciate ligament, and the other end in a bone tunnel through the femur.

The early postoperative phase of soft tissue graft reconstruction ACL is the weakest period of graft fixation, with the fixation device maintaining the reconstructed ACL position for the first 6-8 weeks, followed by gradual fusion of the graft into the bone to form stronger tenascing-bone healing. The initial fixation strength of the ACL graft is believed to play a decisive role in success or failure of ACL reconstruction and recovery of the patient's motor function, strong and firm internal fixation can effectively prevent the graft from sliding, and the ability of the graft to resist sliding under cyclic loading is also particularly important in the patient's postoperative recovery process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an interface anchor nail weaving nail sheath device.

The utility model discloses an interface anchor weaving nail sheath device, including weaving nail sheath and anchor nail, weave the nail sheath and include a plurality of tail end interconnect's component piece and stylolite, adjacent have the interval between the component piece, the stylolite begins to be adjacent from the tail end the component piece is connected to the head end, weave the nail sheath and form cladding internal diameter adjustable sheath portion, sheath portion parcel the anchor nail surface.

Preferably, the number of the component pieces is 3 or 4.

Preferably, the average diameter of the braided nail sheath ranges from 1.5mm to 9.0mm, and the length of the braided nail sheath ranges from 30mm to 40 mm.

Preferably, the composition sheet is a mesh-like woven fabric woven by biomedical woven materials.

Preferably, the suture size is USP #3-0- # 0.

Preferably, the braided material comprises absorbable material and/or non-absorbable material, the braided material is a round suture and/or a flat ribbon, and is braided by single-strand yarns or multi-strand yarns, the diameter of the single-strand yarns ranges from 0.1mm to 0.5mm, and the diameter of the multi-strand yarns is 150-.

Preferably, the surface or the inside of the woven material is provided with therapeutic drugs.

Preferably, the knitting density and the thickness of the knitting structure of the mesh-shaped knitting are respectively 30-400PPI and 0.2-2 mm.

The utility model has the advantages and positive effects that: the utility model provides an interface rivet weaving nail sheath device, which is mainly used for cladding soft tissue structures such as fixed tendons on the surface of an interface rivet, compared with the prior injection molding interface rivet sheath, the medical polymer material weaving nail sheath has a soft integral structure, and can be adjusted to form a cladding inner diameter by adjusting the tension of a suture at the tail end of the weaving nail sheath so as to be attached to the surface of the rivet as much as possible to form an integral structure of a rivet implantation system with the weaving nail sheath, the utility model can improve the contact area between the soft weaving wire sheath and an implanted bone canal by cladding the surface of a hard rivet, greatly improve the extraction force of the integral system, form a natural isolation barrier between the rivet and the soft tissue by weaving the nail sheath when the soft tissue is fixed by the cladding interface rivet, avoid the tearing or cutting of the rivet to the soft tissue, and reduce the torsion of plants when the rivet is implanted, the existence of weaving nail sheath tail end stylolite makes the tubulose weaving nail sheath that forms laminate the anchor surface more, also can constantly tighten up in the anchor implantation process, deformation dislocation when avoiding whole implantation, forms latticed outer wall after the implantation, because weave the extremely excellent flexibility of structure, whole form is implanted along with the anchor and constantly expands so that fixing device is suitable for internally hugely closely, the stylolite can directly be cut off the processing, also can satisfy the later stage demand such as fixed of knoing, has given interface anchor area line effect.

Drawings

Fig. 1 is a schematic structural diagram of an interface anchor braiding nail sheath device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an interface anchor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a braided nail sheath according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a mesh-type woven fabric provided in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first assembled tablet provided in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a component sheet according to the first embodiment of the present invention;

fig. 7 is a first schematic structural view of a braided nail sheath according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a braided nail sheath according to a first embodiment of the present invention;

fig. 9 is a schematic view of an interface anchor and a braided nail sheath according to an embodiment of the present invention;

fig. 10 is a schematic view of a combination of an interface anchor and a braided staple sheath according to an embodiment of the present invention;

fig. 11 is a first schematic view of the use of the interface anchor braiding tack sheath device according to a first embodiment of the present invention;

fig. 12 is a second schematic view of the interface anchor braiding tack sheath device according to the first embodiment of the present invention;

fig. 13 is a diagram illustrating an effect of the interface anchor braiding sheath device according to an embodiment of the present invention.

Wherein: 1. anchoring the bolts; 2. forming a tablet; 3. a suture; 4. spacing; 5. a mesh braid.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model discloses an interface anchor nail woven nail sheath device, which is an implantation device for fixing a soft tissue graft in a bone tunnel. As shown in fig. 1 to 8, comprising a braided pin sheath and an anchor 1, the braided pin sheath comprises a plurality of constituent pieces 2 connected with each other at their tail ends and a suture 3 with a space 4 between the adjacent constituent pieces, the suture connecting the adjacent constituent pieces to the head end from the tail ends, the braided pin sheath is cut out of a mesh braid and connected in series by the suture, and the overall shape of the braided pin sheath is an open end at one end and closed at the other end, and the inner size and shape of the braided pin sheath for accommodating the anchor are adjustable. The braided nail sheath forms a sheath portion with an adjustable wrapping inner diameter, and the sheath portion wraps the outer surface of the anchor. Implant interface anchor nail and woven nail sheath together, tighten up the woven nail sheath through tensile tail end stylolite in the implantation process, fixed back stylolite can directly be cut off and handle, also can the later stage knot fixed etc..

Furthermore, the component pieces are fan-shaped, and the number of the component pieces is 3 or 4.

Furthermore, the size and the shape of the woven nail sheath can be adjusted, the woven nail sheath is used for being implanted into a human body after being wrapped with the interface anchor, the average diameter range of the woven nail sheath is 1.5mm-9.0mm, and the length of the woven nail sheath is 30mm-40 mm.

The flexibility and thickness of the sheath-tube-shaped structure of the braided nail can be designed according to the shape of the fixing device or the shape of the bone tunnel so as to stretch and adjust to achieve close fit; inserting the anchor into the braided nail sheath, and tightening the suture to make the anchor and the braided nail sheath attached; the braided pin sheath-tube structure protects the soft tissue graft from being torn or cut by the threads of the fixation screw and reduces twisting of the plant when the screw is inserted; the bulges of the sheath-tube structure of the woven nail, such as the perforation on the sheath wall, the convex groove formed by inserting the suture line and the like, can strengthen the in-situ contact of the soft tissue graft and the bone tunnel wall, and promote the growth of fibrous tissues of the human body and the permanent attachment of the soft tissue and the bone; the sheath-like structure of the woven nail can bear therapeutic drugs, such as osteoinductive agents or growth factors, is placed or embedded into the surface or the interior of the woven material, and can directly deliver the drugs to a fixed part to promote the healing of the contact part.

The utility model discloses a manufacturing method of interface anchor nail weaving nail sheath device, including following step:

s1, weaving a mesh-shaped woven fabric 5 shown in a figure 4 by using a biomedical woven material;

s2, cutting the mesh-shaped braided fabric by using a hardening and shearing method, and uniformly dividing the mesh-shaped braided fabric into a plurality of equal parts to form a composition piece with mutually connected tail ends;

s3, connecting the component pieces to the head end of the fabric in a left-right crossing manner by using a suture line from the tail end to form a braided nail sheath with a suture line end as shown in figures 7 and 8;

s4, placing the interface anchor to be implanted into the braided nail sheath and tightening the suture. Implant interface anchor nail and weaving nail sheath together, the implantation in-process is through drawing tail end stylolite and tighten up the nail sheath, and fixed back stylolite can directly be cut off and handle, also can the later stage knot fixed etc..

Optionally, the mesh fabric is circular or square, and the diameter of the mesh fabric is 5-30 cm or the side length of the mesh fabric is 5-30 cm.

Optionally, sutures are used, starting from the bottom and going sequentially up through the woven mesh until a tubular shape is formed, the suture size being USP #3-0- # 0.

Optionally, the woven material comprises absorbable material and/or non-absorbable material, the absorbable material comprises polyglycolic acid PGA, polylactic acid PLA, polydioxanone PDO, polyglycolic acid PGLA, or the like, and the non-absorbable material comprises polypropylene, polyethylene (including ultra-high molecular weight polyethylene), nylon 6, nylon 66, polyester, Polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), or the like. The weaving material is a circular suture and/or a flat ribbon and is woven by single-strand yarns or multi-strand yarns, the diameter range of the single-strand yarns is 0.1mm-0.5mm, and the diameter of the multi-strand yarns is 150-250D. The different weaving modes of the yarns determine the different weaving structures, wherein single-strand and multi-strand yarns, round yarns and flat yarns and the like provide enough gaps for the formed tubular sheath-shaped structure to grow into human tissues. The weaving parts at the head end and the tail end can adopt raw material yarns with different wire diameters or different specifications.

Optionally, the surface or the interior of the woven material is provided with a therapeutic drug. The sheath-like structure of the woven nail can bear therapeutic drugs, such as osteoinductive agents or growth factors, is placed or embedded into the surface or the interior of the woven material, and can directly deliver the drugs to a fixed part to promote the healing of the contact part.

Optionally, the mesh braid structure has a braid density and thickness of 30-400PPI and 0.2-2mm, respectively. The mesh braided fabric braided structure is changed according to the shape or the size of the interface anchor, and the braiding density and the thickness of the mesh braided fabric braided structure are adjustable.

Optionally, the hardening and shearing method is a heating hardening method, the heat hardening temperature is 80-300 ℃, and the components are equally divided into three equal parts or four equal parts to form the component pieces with the tail ends connected with each other. When cutting, the fabric can be cut into three equal parts or four equal parts as shown in fig. 5 and 6 according to requirements, the intervals and the sizes of the divided parts are the same, and the size is 5-30 cm according to the size of the fabric.

Example 1

An interface anchor weaving nail sheath device and a manufacturing and using method thereof comprise the following steps:

1) the round mesh braided fabric with the size of 20 cm is braided by using single-stranded ultra-high molecular weight polyethylene yarns with the diameter of 0.1 mm.

2) And heating and hardening at the temperature of 100 ℃, and uniformly cutting into trisections with the outer circumferential length of 20 cm.

3) A suture of size USP #0 is passed through the knitted mesh from the bottom and up in sequence until a knitted tack sheath is formed.

4) As shown in fig. 9 and 10, placing the interface anchor to be implanted into the braided nail sheath and tightening the suture forms a unitary structure of the anchor and the braided nail sheath.

5) When the interface pin system is implanted, as shown in fig. 11 and 12, the suture is constantly kept taut to ensure the implant is structurally intact and in close proximity to the bone tunnel.

6) As shown in fig. 13, fixation is accomplished by trimming the remaining sutures away.

Example 2

An interface anchor weaving nail sheath device and a manufacturing and using method thereof comprise the following steps:

1) the flat 100D multi-strand polyester yarn is used for weaving the circular mesh fabric with the size of 30 cm.

2) And heating and hardening at the temperature of 120 ℃, and uniformly cutting into trisections with the external circumferential length of 10 cm.

3) A suture of size USP #2-0 is used to thread the knitted mesh from the bottom up in sequence until a knitted tack sheath is formed.

4) And placing the interface anchor to be implanted into the braided nail sheath and tightening the suture to form an integral structure of the anchor and the braided nail sheath.

5) When the interface nail system is implanted, the suture line is kept tensioned all the time so as to ensure the complete implantation structure and the close fit with the bone canal.

6) And (4) cutting off the residual suture line for fixation, and finishing implantation fixation.

Example 3

An interface anchor weaving nail sheath device and a manufacturing and using method thereof comprise the following steps:

1) the circular mesh braided fabric with the size of 30 cm is braided by using flat 100D multi-strand polyester yarns and round 0.1mm single-strand polylactic acid yarns, and the braided densities before and after the structure are different.

2) And heating and hardening at the temperature of 150 ℃, and uniformly cutting into trisections with the outer circumferential length of 5 cm.

3) A suture of size USP #2-0 is used to thread the knitted mesh from the bottom up in sequence until a knitted tack sheath is formed.

4) And placing the interface anchor to be implanted into the braided nail sheath and tightening the suture to form an integral structure of the anchor and the braided nail sheath.

5) When the interface nail system is implanted, the suture line is kept tensioned all the time so as to ensure the complete implantation structure and the close fit with the bone canal.

6) And (4) cutting off the residual suture line for fixation, and finishing implantation fixation.

The utility model provides an interface rivet weaving nail sheath device, which is mainly used for cladding soft tissue structures such as fixed tendons on the surface of an interface rivet, compared with the prior injection molding interface rivet sheath, the medical polymer material weaving nail sheath has a soft integral structure, and can be adjusted to form a cladding inner diameter by adjusting the tension of a suture at the tail end of the weaving nail sheath so as to be attached to the surface of the rivet as much as possible to form an integral structure of a rivet implantation system with the weaving nail sheath, the utility model can improve the contact area between the soft weaving wire sheath and an implanted bone canal by cladding the surface of a hard rivet, greatly improve the extraction force of the integral system, form a natural isolation barrier between the rivet and the soft tissue by weaving the nail sheath when the soft tissue is fixed by the cladding interface rivet, avoid the tearing or cutting of the rivet to the soft tissue, and reduce the torsion of plants when the rivet is implanted, the existence of weaving nail sheath tail end stylolite makes the tubulose weaving nail sheath that forms laminate the anchor surface more, also can constantly tighten up in the anchor implantation process, deformation dislocation when avoiding whole implantation, forms latticed outer wall after the implantation, because weave the extremely excellent flexibility of structure, whole form is implanted along with the anchor and constantly expands so that fixing device is suitable for internally hugely closely, the stylolite can directly be cut off the processing, also can satisfy the later stage demand such as fixed of knoing, has given interface anchor area line effect.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (8)

1. An interface anchor braiding nail sheath device, characterized in that: the braided nail sheath comprises a plurality of tail end interconnected component pieces and a suture line, wherein intervals are arranged between the adjacent component pieces, the suture line connects the adjacent component pieces to a head end from the tail end, the braided nail sheath forms a sheath part with adjustable wrapping inner diameter, and the sheath part wraps the outer surface of the anchor.

2. The interface anchor braid nail sheath apparatus of claim 1, wherein: the component pieces are fan-shaped, and the number of the component pieces is 3 or 4.

3. The interface anchor braid nail sheath apparatus of claim 1, wherein: the average diameter range of the braided nail sheath is 1.5mm-9.0mm, and the length of the braided nail sheath is 30mm-40 mm.

4. The interface anchor braid nail sheath apparatus of claim 1, wherein: the composition sheet is a mesh-shaped braided fabric braided by adopting a biomedical braided material.

5. The interface anchor braid nail sheath apparatus of claim 1, wherein: the suture size is USP #3-0- # 0.

6. The interface anchor braid nail sheath apparatus of claim 4, wherein: the braided material comprises absorbable material and/or non-absorbable material, the braided material is a round suture and/or a flat wire belt and is braided by single-strand yarns or multi-strand yarns, the diameter of the single-strand yarns ranges from 0.1mm to 0.5mm, and the diameter of the multi-strand yarns is 150-250D.

7. The interface anchor braid nail sheath apparatus of claim 4, wherein: the surface or the interior of the woven material is provided with a therapeutic drug.

8. The interface anchor braid nail sheath apparatus of claim 4, wherein: the knitting density and the thickness of the mesh knitting structure are respectively 30-400PPI and 0.2-2 mm.

Images