CN112957089A - Anchor with wire - Google Patents

Anchor with wire Download PDF

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Publication number
CN112957089A
CN112957089A CN202110297768.XA CN202110297768A CN112957089A CN 112957089 A CN112957089 A CN 112957089A CN 202110297768 A CN202110297768 A CN 202110297768A CN 112957089 A CN112957089 A CN 112957089A
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CN
China
Prior art keywords
nail body
thread
suture
hole
threading block
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Granted
Application number
CN202110297768.XA
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Chinese (zh)
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CN112957089B (en
Inventor
孔庆俊
黎建波
王巨伟
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Beijing Delta Medical Technology Co ltd
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Beijing Delta Medical Technology Co ltd
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Priority to CN202110297768.XA priority Critical patent/CN112957089B/en
Publication of CN112957089A publication Critical patent/CN112957089A/en
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Publication of CN112957089B publication Critical patent/CN112957089B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064Surgical staples, i.e. penetrating the tissue
    • A61B17/0642Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0401Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06166Sutures
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0401Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
    • A61B2017/0408Rivets
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0401Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
    • A61B2017/0446Means for attaching and blocking the suture in the suture anchor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064Surgical staples, i.e. penetrating the tissue
    • A61B2017/0647Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
    • A61B2017/0648Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks threaded, e.g. tacks with a screw thread

Abstract

The utility model belongs to the technical field of medical instrument and specifically relates to a band wire anchor, its technical scheme main points are: comprises a nail body with a thread on the circumferential surface, a thread accommodating hole for inserting a suture thread is arranged in the nail body, and the thread accommodating hole penetrates through one end of the nail body; a threading block is arranged in the thread accommodating hole, and a gap for the threading thread to pass through is formed between the surface of the threading block and the hole wall of the thread accommodating hole; the peripheral surface of the nail body is provided with a first wire drawing hole communicated with the wire containing hole, and the first wire drawing hole is formed in the position where the wire drawing block is located; the purposes of reducing the interference of the suture to the fixation of the nail body on the bone and reducing the damage to the suture are achieved.

Description

Anchor with wire
Technical Field
The application relates to the field of medical equipment, in particular to a suture anchor.
Background
In the soft tissue repair procedure, the surgeon attaches the soft tissue via sutures, which are brought into and secured to the bone surface via a suture anchor, thereby securing the soft tissue to the bone.
The screw-in type suture anchor recorded in the related technology comprises a nail body, wherein the peripheral surface of the nail body is provided with threads, and the peripheral surface of the nail body is provided with a through hole for a suture to pass through; the range of the wire diameter of the common surgical suture is 0.500-0.599 mm; before an operation is carried out, one end of a suture line penetrates through a through hole of a nail body to fix the position between the suture line and the nail body, then a screw tap or other tools are utilized to open a threaded hole matched with the nail body on a bone, then the nail body is screwed into the bone to fix the nail body in the bone, so that the suture line is indirectly fixed on the bone, the thread heads at two ends of the suture line are in a free state, and finally soft tissue is fixed between two free ends of the suture line to fix the soft tissue and the bone.
In view of the above-mentioned related art solutions, the inventors found that: the suture passes over the circumference of the shank and, when the shank is screwed into the bone, the suture may hinder fixation of the shank to the bone and may damage the suture.
Disclosure of Invention
To reduce interference of the suture with fixation of the body to the bone and to reduce damage to the suture, the present application provides a suture anchor.
The application provides a take line anchor nail adopts following technical scheme:
a kind of band wire anchor nail, including offer the screwed nail body on the perimeteric surface, offer the wire hole of holding for the suture to insert inside the nail body, hold the wire hole to run through one end of the nail body; a threading block is arranged in the thread accommodating hole, and a gap for the threading thread to pass through is formed between the surface of the threading block and the hole wall of the thread accommodating hole; the circumferential surface of the nail body is provided with a first wire drawing hole communicated with the wire containing hole, and the first wire drawing hole is arranged at the position of the threading block.
By adopting the technical scheme, when the suture is required to be relatively fixed on the nail body, one free end of the suture is inserted into the suture accommodating hole from the open end of the nail body and is continuously inserted towards the direction close to the threading block, when the suture moves to the position of the threading block, the free end of the suture is moved to one side of the threading block close to the first pull-wire hole, the free end of the suture is pulled out from the inside of the nail body through the first pull-wire hole, the suture is penetrated in the nail body at the moment, then the free end of the suture is inserted into the first pull-wire hole and is simultaneously inserted into one side of the threading block far away from the open end of the nail body, the suture is inserted into the suture accommodating hole until the free end of the suture moves to one side of the threading block far away from the first pull-wire hole, further the suture is wound around the surface of the threading block, the free end of the suture is turned to 180 degrees, the suture is continuously inserted into the suture accommodating hole until the free, the positions of the suture line and the threading block are relatively fixed, and two free ends of the suture line are positioned outside the opening end of the nail body; when the nail body needs to be fixed on the bone, the part of the suture close to the bone is positioned in the nail body, so that the interference influence of the suture on the screwing of the nail body into the bone is reduced, and the damage to the suture is reduced.
Preferably, the circumferential surface of the nail body is provided with a second wire drawing hole opposite to the first wire drawing hole, and the second wire drawing hole is communicated with the wire accommodating hole.
By adopting the technical scheme, after the free end of the suture passes through the first thread pulling hole and moves to the side, far away from the opening end of the nail body, of the threading block, the suture needs to be wound on the threading block and turns for 180 degrees; draw the line hole through seting up the second, move to the first outside back that draws the line hole when the stylolite, make the free end of stylolite pass through first drawing the line hole and the second in proper order and draw the line hole, the free end of stylolite lies in the second and draws the line hole to keep away from the first one side that draws the line hole this moment, draw the line hole to insert the free end of stylolite to the threading piece one side that is close to the nail body open end through the second again, made things convenient for like this that the doctor controls the stylolite and worn to establish the movement track of removal on the nail body and be the line of walking of stylolite, and then make the doctor carry out the stylolite more.
Preferably, one end of the threading block close to the opening end of the nail body inclines towards the direction far away from the axis of the nail body along the direction from close to far away from the opening end of the nail body.
Through adopting above-mentioned technical scheme, increased the threading piece surface, be close to the position department of nail body open end and accomodate the distance between the line hole pore wall, increased the suture promptly and worn out or the motion space when inserting from the internal portion of nail, made things convenient for the suture to want to wear out or want to insert the nail body through the second line hole from the internal portion of nail through first line hole.
Preferably, the end of the threading block far away from the opening end of the nail body inclines towards the direction close to the axis of the nail body along the direction from close to far away from the opening end of the nail body.
Through adopting above-mentioned technical scheme, increased the threading piece surface, kept away from the position department of nail body open end and accomodate the distance between the line hole pore wall, increased the suture promptly and inserted or the motion space when wearing out from the internal portion of nail, made things convenient for the suture to want to insert the nail body through first acting as go-between hole or want to wear out from the internal portion of nail through the second acting as go-between hole.
Preferably, the middle position of the threading block is convex towards the direction far away from the axis of the nail body.
Through adopting above-mentioned technical scheme, because first acting as go-between hole and second act as go-between hole are seted up, the global intensity in threading piece position department of the nail body is lower, under the condition that the both ends size that the threading piece is close to or keeps away from the nail body open end reduces, has increased the size of threading piece middle part, and then has improved the supporting effect on threading piece and nail body surface, has reduced the nail body promptly and has taken place the possibility of damaging because the extrusion of high strength or bending in the use.
Preferably, the dimension of the threading block in the direction perpendicular to the axis of the nail body is greater than or equal to two times the diameter of the suture thread.
Through adopting above-mentioned technical scheme, in actual operation process, the internal portion of nail often need wear to establish many stylolite, through making the suture piece along the size of perpendicular to nail body axis direction more than or equal to twice the suture line footpath, and then after the suture winding is on the suture piece, can distribute on the suture piece uniformly between suture and the suture line, and difficult cause hesitation overlap joint or contact each other between the adjacent suture line and cause the mutual winding or entangling of suture line, then improved the maneuverability of high suture in operation process.
Preferably, the side edge of the threading block is processed into a rounded corner.
Through adopting above-mentioned technical scheme, the stylolite can take place relative slip and friction with the surface of threading piece around the in-process that the threading piece removed, through the radius angle, makes the stylolite can twine on the threading piece more smoothly and reduced the wearing and tearing of threading piece to the stylolite.
Preferably, the diameter of the nail body is 4-7 mm; the thread angle of the thread on the circumferential surface of the nail body is 15-25 degrees, the thread height of the thread is 0.4-0.9mm, and the thread cross-sectional area of the thread is 0.2-0.4mm2
By adopting the technical scheme, the tooth form angle is within the range of 15-25 degrees and is smaller than 60 degrees, 55 degrees or 30 degrees commonly used in the national standard, so that the cross section area of the tooth form is increased, and the strength of the thread is increased; in addition, under the certain condition of tooth type cross-sectional area, through adopting less screw thread tooth height, and then reduced the moment that the screw thread received to improve the stability of atress after the anchor is implanted.
Preferably, the end of the nail body far away from the opening is coaxially provided with a conical spike part, and the taper angle of the spike part is 80-95 degrees.
By adopting the technical scheme, the arrangement of the spine part can reduce the possibility that the nail body is stuck in the threaded hole of the bone; the taper angle of the spike is larger and the strength of the spike is improved.
Preferably, the end face of the opening end of the nail body is provided with a screwing hole which is convenient for screwing the nail body and is matched with a tool for use.
By adopting the technical scheme, the screw hole is convenient for people to screw the nail body into the bone by using a corresponding tool.
In conclusion, by arranging the nail body, arranging the thread accommodating hole in the nail body, arranging the first thread pulling hole and the second thread pulling hole on the circumferential surface of the nail body, and arranging the threading block in the thread accommodating hole, when the nail body needs to be fixed on a bone, because the part of the suture close to the bone is positioned in the nail body, the interference influence of the suture on the screwing of the nail body into the bone is reduced, and the damage to the suture is reduced; the special design of threading block shape has made things convenient for the line of walking of stylolite to wear to establish under the prerequisite of guaranteeing nail body intensity.
Drawings
FIG. 1 is an overall block diagram of a suture anchor according to one embodiment on one side of a first suture hole;
FIG. 2 is an overall block diagram of a suture anchor according to one embodiment on one side of a second suture hole;
FIG. 3 is a view of the internal structure of a suture anchor and the routing of the suture in accordance with one embodiment, with the solid arrows showing the routing path of the suture;
FIG. 4 is a view for reflecting the width dimension W of the peripheral surface of the threading block along a direction perpendicular to the axis of the nail body;
FIG. 5 is an internal block diagram of the suture anchor of the second embodiment;
fig. 6 is an internal structural view of the suture anchor according to the third embodiment.
In the figure, 1, a nail body; 2. a wire accommodating hole; 3. a threading block; 4. a first pull wire hole; 5. a second pull wire hole; 6. a spike portion; 7. and (5) screwing the hole.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The first embodiment is as follows:
referring to fig. 1, 2 and 3, the present application provides a suture anchor, including a cylindrical anchor body 1, wherein a circumferential surface of the anchor body 1 is provided with a thread; the nail body 1 is coaxially provided with a thread accommodating hole 2 for a suture thread to enter the nail body 1, and the thread accommodating hole 2 only penetrates through one end face of the nail body 1, namely one end of the nail body 1 is an open end and the other end is a closed end; a columnar threading block 3 is fixed inside the nail body 1, two opposite surfaces of the threading block 3 are fixedly connected with the hole wall of the thread accommodating hole 2, and a gap for a suture thread to pass through is formed between the peripheral surface of the threading block 3 and the hole wall of the thread accommodating hole 2, namely the threading block 3 divides the inside of the thread accommodating hole 2 into two parts of channels for the suture thread to pass through; the circumferential surface of the nail body 1 is provided with a first wire pulling hole 4 and a second wire pulling hole 5, the first wire pulling hole 4 and the second wire pulling hole 5 are both arranged at the position of the threading block 3, and the first wire pulling hole 4 and the second wire pulling hole 5 are arranged oppositely; the first wire drawing hole 4 and the second wire drawing hole 5 penetrate through the peripheral surface of the threading block 3 in the opening direction, namely, a doctor can touch the peripheral surface of the threading block 3 through the first wire drawing hole 4 or the second wire drawing hole 5.
Referring to fig. 3, when the relative position of the suture thread and the nail body 1 needs to be fixed, one free end of the suture thread is inserted into the thread accommodating hole 2 from the open end of the nail body 1 and the free end of the suture thread is continuously moved to the direction close to the threading block 3, after the free end of the suture thread moves to the position of the threading block 3, the suture thread is deviated to the direction close to the hole wall of the thread accommodating hole 2 until the free end of the suture thread enters into one of the two passages formed between the thread accommodating hole and the hole wall of the thread accommodating hole 2, the suture thread is continuously moved to the direction close to the closed end of the nail body 1 until the free end of the suture thread passes through the first thread-drawing hole 4, and the free end of the suture thread is pulled out of the inside of the nail body 1 through the first thread; then the free end of the suture is turned by 180 degrees, and the free end of the suture is inserted into the thread accommodating hole 2 again from the position of the first thread pulling hole 4 far away from the open end of the nail body 1, which is further defined as that the free end of the suture is arranged on one side of the threading block 3 far away from the open end of the nail body 1; at this point, the suture is wrapped around the block 3 for half a circumference.
Thereafter, pushing the free end of the suture and making the suture continuously move towards the direction close to the second wire drawing hole 5 in the suture containing hole 2 until the free end of the suture passes through the second wire drawing hole 5 to reach the outside of the nail body 1; then, the free end of the suture is turned by 180 degrees, and the free end of the suture is inserted into the suture receiving hole 2 again from the position of the second thread pulling hole 5 close to the open end of the nail body 1, and is further defined as placing the free end of the suture at one side of the threading block 3 close to the open end of the nail body 1; at the moment, the suture thread is wound on the threading block for 3 circles; finally, the free end of the suture is continuously pushed to move in the thread containing hole 2 in the direction away from the threading block 3, namely close to the opening end of the nail body 1 until the free end of the suture passes out of the opening end of the nail body 1.
The suture is relatively fixed in the nail body 1, namely when two free ends of the suture are dragged away from the nail body 1 at the same time, the suture cannot be pulled out of the nail body 1 because the suture is wound on the threading block 3; when the nail body 1 needs to be fixed on the bone, the part of the suture close to the bone is positioned in the nail body 1, so that the interference influence of the suture on the screwing of the nail body 1 into the bone is reduced, and the damage to the suture is reduced.
It should be noted that the first wire hole 4 and the second wire hole 5 are only distinguished in terms of nomenclature, and are not limited in terms of sequence or function in the actual use process.
With reference to fig. 3, further, the shape of the threading block 3 is constrained: the threading block 3 is close to one end of the opening end of the nail body 1 and inclines in the direction far away from the axis of the nail body 1 along the direction from close to the opening end of the nail body 1; one end of the threading block 3, which is far away from the opening end of the nail body 1, inclines towards the direction close to the axis of the nail body 1 along the direction from close to far away from the opening end of the nail body 1; the middle position of the threading block 3 protrudes towards the direction far away from the axis of the nail body 1; in this embodiment, the threading block 3 is shaped like a spindle.
The threading block 3 is close to one end of the open end of the nail body 1 and inclines towards the direction far away from the axis of the nail body 1 along the direction from close to the open end of the nail body 1, so that the distance between the position of the peripheral surface of the threading block 3 close to the open end of the nail body 1 and the hole wall of the thread accommodating hole 2 is increased, the distance between the suture thread passing through the first thread pulling hole 4 or the second thread pulling hole 5 is further increased, and the suture thread is convenient to penetrate out of the inside of the nail body 1 through the first thread pulling hole 4 or to be inserted into the nail body 1 through the second thread pulling hole 5; through making threading piece 3 keep away from the one end of the nail body 1 open end, along from being close to the direction of keeping away from the nail body 1 open end, to the direction slope that is close to nail body 1 axis, increased and supplied the stylolite to draw the interval of line hole 5 through first line hole 4 or second, made things convenient for the stylolite to insert the nail body 1 through first line hole 4 or want to wear out from the nail body 1 is inside through second line hole 5.
Due to the reduction of the size of the end part of the threading block 3 close to and far away from the opening end of the nail body 1 and the opening of the first wire drawing hole 4 and the second wire drawing hole 5, the nail body 1 is easy to damage at the threading block 3 due to high-strength extrusion or bending with the bone; the middle position of the threading block 3 protrudes towards the direction far away from the axis of the nail body 1, so that the effective area of the threading block 3 for supporting the circumferential wall of the nail body 1 is increased, and the strength of the nail body 1 at the threading block 3 is improved when the threading of a suture line is facilitated.
The width W of the peripheral surface of the threading block 3 along the axis perpendicular to the nail body 1 is larger than or equal to twice the diameter of the suture line; in the embodiment, the diameter of the nail body 11 is 4.5mm, the diameter of the selected suture line is 0.550mm, and the width W of the peripheral surface of the threading block 3 is 2.300 mm; in actual operation process, a plurality of stylolite often need to wear to establish in the nail body 1 inside, through foretell numerical value settlement, after four stylolite twines on threading piece 3, can distribute on threading piece 3 evenly between stylolite and the stylolite, and difficult cause between the adjacent stylolite hesitancy overlap joint each other or contact and cause the stylolite each other twine or entangle, then improved the maneuverability of high suture in operation process.
In addition, the diameter of the nail body 1 is 4-7 mm; the thread angle of the thread on the circumferential surface of the nail body 1 is 15-25 degrees, the thread height of the thread is 0.4-0.9mm, and the thread cross-sectional area of the thread is 0.2-0.4mm2
In this embodiment, the anchor has three types. The first model is as follows: the diameter of the nail body 1 is 4.5mm, and the cross section area of the thread tooth form is 0.255mm2The thread form angle is 20 degrees, and the thread height is 0.45 mm; the second model is as follows: the diameter of the nail body 1 is 5.5mm, and the cross section area of the thread tooth form is 0.303mm2The thread form angle is 20 degrees, and the thread height is 0.65 mm; the third model is as follows: the diameter of the nail body 1 is 6.5mm, and the cross section area of the thread tooth form is 0.352mm2The thread form angle is 20 degrees, and the thread height is 0.80 mm. Compared with the national standard common thread form angle range, the thread form angle range is smaller, so that the cross section area of the thread form is increased, and the strength of the thread is increased; in addition, under the condition that the cross section area of the tooth form is fixed, the moment borne by the thread is reduced by adopting smaller thread height, so that the stress stability of the nail body 1 after being implanted is improved.
Referring to fig. 1 and 2, further, the side edge of the joint of the threading block 3 and the nail body 1 is processed into a rounded corner; in the process that the suture moves around the threading block 3, the suture is attached to the peripheral surface of the threading block 3 and slides along the peripheral surface of the threading block 3, and friction is generated between the suture and the threading block 3; by processing the rounding off, the suture can be wound on the threading block 3 more smoothly and the abrasion of the threading block 3 to the suture is reduced.
Referring to fig. 1 and 3, a conical spike part 6 is coaxially formed at the closed end of the nail body 1, and the taper angle of the spike part 6 is 90 degrees; the arrangement of the spine part 6 can reduce the possibility that the nail body 1 is stuck in the threaded hole of the bone; the taper angle of the spine part 6 is larger, so that the strength of the spine part 6 is improved, and the possibility of deformation and damage of the spine part 6 in the bone is reduced.
Referring to fig. 2 and 3, a screwing hole 7 for facilitating screwing of the nail body 1 is formed in the end face of the open end of the nail body 1, and the screwing hole 7 may be in a cross shape, a straight shape, an internal hexagon shape or any other shape capable of being used in cooperation with a screwdriver or an allen wrench.
Example two:
referring to fig. 5, the difference between the present embodiment and the first embodiment is that the threading block 3 is elliptical and the long axis of the ellipse is parallel to the axis of the nail body 1.
Due to the particularity of the oval shape, namely, the end part of the oval shape along the long axis direction of the oval shape is narrow, when the free end of the suture enters the inside of the suture containing hole 2 and moves to the position close to the threading block 3, the free end of the suture is continuously moved towards the direction close to the threading block 3 until the free end of the suture is abutted against the end part of the threading block 3, and because the end part of the oval threading block 3 is narrow, after the free end of the suture is abutted against the end part of the threading block 3, the free end of the suture is selected to automatically slide to one side of the threading block 3 without a doctor adjusting the position of the suture in the suture containing hole 2 to reduce the possibility that the suture is abutted against the threading block 3 and cannot pass through the first pull hole 4 or the second pull hole 5.
Example three:
referring to fig. 6, the present embodiment is different from the first embodiment in that the threading block 3 is shaped as a diamond, and the long diagonal line of the diamond is parallel to the axis of the nail body 1; similar effects can be achieved by the elliptical shape of the threading block 3 in this embodiment and the second embodiment, which are not described herein again. Of course, the threading block 3 may also be in the shape of a shuttle, a kite or any other irregular figure, as long as the aforementioned constraints on the shape of the threading block 3 are met.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (10)

1. The utility model provides a take line anchor, sets up screwed nail body (1) on global, its characterized in that: a thread containing hole (2) for inserting a suture thread is formed in the nail body (1), and the thread containing hole (2) penetrates through one end of the nail body (1); a threading block (3) is arranged in the thread accommodating hole (2), and a gap for a suture thread to pass through is formed between the surface of the threading block (3) and the hole wall of the thread accommodating hole (2); the nail body (1) is provided with a first thread pulling hole (4) communicated with the thread receiving hole (2), and the first thread pulling hole (4) is arranged at the position of the threading block (3).
2. The suture anchor of claim 1, wherein: the circumferential surface of the nail body (1) is provided with a second wire pulling hole (5) which is opposite to the first wire pulling hole (4), and the second wire pulling hole (5) is communicated with the wire accommodating hole (2).
3. The suture anchor of claim 2, wherein: the threading block (3) is close to one end of the opening end of the nail body (1) and inclines in the direction away from the axis of the nail body (1) along the direction from close to far away from the opening end of the nail body (1).
4. The suture anchor of claim 2, wherein: the threading block (3) is far away from one end of the opening end of the nail body (1), and inclines towards the direction close to the axis of the nail body (1) along the direction from close to the opening end of the nail body (1).
5. The suture anchor of claim 2, wherein: the middle position of the threading block (3) is protruded towards the direction far away from the axis of the nail body (1).
6. The suture anchor of claim 1, wherein: the dimension of the threading block (3) along the direction vertical to the axial line of the nail body (1) is more than or equal to two times of the thread diameter of the suture.
7. The suture anchor of claim 1, wherein: the side edge of the threading block (3) is processed into a fillet.
8. The suture anchor of claim 1, wherein: the diameter of the nail body (1) is 4-7 mm; the thread angle of the thread on the circumferential surface of the nail body (1) is 15-25 degrees, the thread height of the thread is 0.4-0.9mm, and the thread cross-sectional area of the thread is 0.2-0.4mm2
9. The suture anchor of claim 1, wherein: one end of the nail body (1) far away from the opening is coaxially provided with a conical spine part (6), and the cone angle of the spine part (6) is 80-95 degrees.
10. The suture anchor of claim 1, wherein: the end face of the opening end of the nail body (1) is provided with a screwing hole (7) which is convenient for screwing the nail body (1) and is matched with a tool for use.
CN202110297768.XA 2021-03-19 2021-03-19 Anchor with wire Active CN112957089B (en)

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Application Number Priority Date Filing Date Title
CN202110297768.XA CN112957089B (en) 2021-03-19 2021-03-19 Anchor with wire

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Application Number Priority Date Filing Date Title
CN202110297768.XA CN112957089B (en) 2021-03-19 2021-03-19 Anchor with wire

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CN112957089A true CN112957089A (en) 2021-06-15
CN112957089B CN112957089B (en) 2022-06-14

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