CN105581820B - A kind of perforating device - Google Patents
A kind of perforating device Download PDFInfo
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- CN105581820B CN105581820B CN201510973246.1A CN201510973246A CN105581820B CN 105581820 B CN105581820 B CN 105581820B CN 201510973246 A CN201510973246 A CN 201510973246A CN 105581820 B CN105581820 B CN 105581820B
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- active section
- tong arm
- perforating needle
- hole
- threading
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
- A61B17/1608—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1655—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1666—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the acetabulum
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of perforating device, including:First tong arm, second tong arm, attachment structure, the first tong arm and the second tong arm for intersection to be placed are rotatably connected, and the first tong arm is divided into the first lever piece and the first active section, second tong arm is divided into second lever piece relative with the first lever piece, and second active section relative with the first active section;Perforating needle, it is arranged on the first active section, there is threading hole or threading groove for threading;First through hole, it is arranged on the second active section, it is relative with perforating needle, perforating needle can be allowed to pass through.The perforating device of the present invention, perforating needle is provided with threading hole or threading groove for threading, before punching, first line or steel wire can be pierced into threading hole or threading groove, after punching, perforating needle is by line in the lump with mistake, threading is completed while punching, compared with traditional perforating device, does not have to not only find perforation again after punching, and threading is easy, operating efficiency is high.
Description
Technical field
The present invention relates to punching technical field of medical instruments, and in particular to a kind of perforating device.
Background technology
In the hip replacement surgery of posterolateral approach, in order to repair outward turning muscle group, so as to improve hip replacement
Stability afterwards by outward turning muscle group and femoral greater trochanter trailing edge, it is necessary to firmly suture fixation.Therefore, it is necessary in femoral greater trochanter
Trailing edge is punched, and suture is passed through from hole, is fixedly secured, at present using Kirschner Wire Drilling, is perforated after drilling easily by surface muscle
Film is covered, and difficult, increase operating time is found when again passing through the hole;Secondly the perforation distance of greater trochanter trailing edge whard to control,
The fissure fracture of greater trochanter trailing edge is caused, increases operating difficulty, also adds pain to patient.
Chinese patent literature CN203619642U discloses a kind of spinous process perforator, as shown in figure 1, including tong arm 01 and pincers
Axle 02, wherein tong arm 01 include the first tong arm 011 and the second tong arm 012, and the first tong arm 011 and the second tong arm 012 are through clamping axle 02
One end of cross-fixing, the first tong arm 011 and the second tong arm 012 is respectively arranged with the first arc shaped pincers head 031 and the second arc shaped pincers
Head 032, the first arc shaped pincers head 031 and the second arc shaped pincers head 032 end are relatively set with perforating needle 04 and punching set 05.Beating
Kong Shi, punching set 05 is abutted in into spinous process side, clamp handle of firmly holding with a firm grip, perforating needle 04 passes through spinous process, coordinates insertion punching set 05
It is internal.
Although the spinous process perforator in above-mentioned patent document can avoid damage to the blood vessel of surrounding and soft to a certain extent
Tissue, but following technological deficiency in actual use still at least be present:After getting perforation using above-mentioned spinous process perforator, also need
(such as steel wire) is threaded in hole, due to there is musculature covering around bone, once perforating needle 04 is extracted out out of hole, muscle groups
Covering will be blocked by punched hole rapidly by knitting, in order to which by line, through perforation, medical personnel need to pick up the perforation got,
It could be threaded, this brings new problem to medical personnel, and threading is inconvenient;In addition, in punching, spinous process is abutted in
The punching set 05 of side can not be held firmly in place, and easily be shaken, and then cause punch position not accurate enough, so that often
Blood vessel or soft tissue around damaging.
The content of the invention
Therefore, the technical problem to be solved in the present invention be to overcome card punch of the prior art after perforation is got once
To extract out, punched hole is just covered by the musculature of surrounding, causes to find difficulty, and then causes the difficult technological deficiency of threading,
Hole need not be looked for so as to provide one kind, and threads easy perforating device.
Therefore, the present invention provides a kind of perforating device, including:
First tong arm;
Second tong arm;
Attachment structure, for first tong arm placed will to be intersected and second tong arm is rotatably connected, and by institute
State the first tong arm and be divided into the first lever piece and the first active section, second tong arm is divided into relative with first lever piece
Second lever piece, and second active section relative with first active section;
Perforating needle, it is arranged on first active section, there is threading hole or threading groove for threading;
First through hole, it is arranged on second active section, it is relative with the perforating needle, the perforating needle can be allowed to wear
Cross;
Elastic expanding structure is additionally provided between the inwall of first lever piece and second lever piece.
As a kind of preferred scheme, the perforating needle is circular arc, and the perforating needle has phase with first active section
Contact, the radius of the circular arc with the phase contact when first active section rotates around the attachment structure, around described
The radius of gyration that attachment structure rotates is identical.
As a kind of preferred scheme, the threading groove is arranged on inside the perforating needle, has bottom surface, and beat along described
One end point of the first side and second side of hole pin bearing of trend distribution, one end of the first side and the second side
Be not connected with the both ends of the bottom surface to form two relative appearance space of lines (36,37), the other end of the first side and
The other end of the second side extends to the same side of the bottom surface, and close to each other, forms threading opening.
As a kind of preferred scheme, the perforating needle outer wall section relative with the first side is to the bottom surface direction
Depression is bent to form the first concave surface, and the perforating needle outer wall section relative with the second side is recessed to the bottom surface direction
It is bent to form the second concave surface, the position of the close threading opening of first concave surface and second concave surface is respectively with described
One side connects with the second side, and outwardly convex forms round and smooth projection.
As a kind of preferred scheme, the outwardly peak of the round and smooth projection is less than where the perforating needle outer wall
Cambered surface.
As a kind of preferred scheme, in addition to for second active section to be stablized into the spacing limit in target punch position
Bit architecture;
The position limiting structure includes limited block, and the limited block is arranged on second active section by mounting structure,
With towards the end face of the perforating needle, the end face is concave circular arcs face, and is provided with slip-resistant texture, and on the limited block
It is additionally provided with the second through hole relative with the first through hole, and that the perforating needle can be allowed to pass through.
As a kind of preferred scheme, the mounting structure includes the mounting groove being located on the limited block, is provided at institute
State the installation through-hole on second active section inside mounting groove, and through both ends after the installation through-hole respectively with it is described
The installation axle that the two side of mounting groove is fixedly connected.
As a kind of preferred scheme, the part of the direction installation groove bottom of second active section, with the installation
There is clearance space between groove bottom, and the installation axle is installed with the installation through-hole gap, to cause the limited block
It can be swung back and forth using the installation axle as the center of circle.
As a kind of preferred scheme, the attachment structure includes the first connecting hole being located on first tong arm, if
The second connecting hole on second tong arm, and through after first connecting hole and second connecting hole by described
The connecting shaft that one tong arm and second tong arm are rotatably connected.
As a kind of preferred scheme, the position provided with second connecting hole of second tong arm, which is provided with, stops groove,
The position provided with first connecting hole of first tong arm is located at the stop inside grooves, and with two relative the
One blocking surface and two the second relative blocking surfaces;
First active section and second active section turn to towards close to mutual direction around the attachment structure
During the first relative position, at least one first blocking surface contacts stop with the inwall of the stop groove;
First active section and second active section turn to away from mutual direction around the attachment structure
During the second relative position, at least one second blocking surface contacts stop with the inwall of the stop groove.
Perforating device provided by the invention, there is advantages below:
1. the perforating device of the present invention, perforating needle is provided with threading hole or threading groove for threading, before punching,
Can first by line or steel wire pierce into threading hole or threading groove in, after punching, perforating needle by line in the lump band mistake, in punching
Complete to thread simultaneously, compared with traditional perforating device, do not have to not only find perforation again after punching, and thread easy, work
Make efficiency high.
2. the perforating device of the present invention, perforating needle is circular arc, and perforating needle has phase contact, and circular arc with the first active section
For the radius of shape with phase contact when the first active section rotates around attachment structure, the radius of gyration rotated around attachment structure is identical, this
So that it is substantially suitable using the perforating needle punched hole cross-sectional area of the present invention and the cross-sectional area of perforating needle, to patient trauma
It is small;In addition, the perforating needle punched hole of the present invention is arcuate socket, the damage to marrow can not only be reduced around from marrow,
More bone contact surfaces can also be provided for steel wire, strengthen fixed effect.
3. the perforating device of the present invention, the arc bearing of trend distribution of first side and second side along perforating needle, and the
One end of one side and second side is connected to form two relative appearance space of lines respectively with the both ends of bottom surface so that of the invention
Perforating needle, which first can wear line to one before punching, to be held in space of lines, is passed through in the lump during punching, can also be used punching
Pin first punches, and after punching, then line is worn into another and held in space of lines, when perforating needle is extracted out out of perforation, by line
Take out of, so that the perforating needle using flexible of the present invention, facilitates operation stitching.Threading opening is formed on perforating needle outer wall, can be with
Allow to be directly placed into the middle part of line, it is possible to increase threading efficiency.
4. the perforating device of the present invention, the perforating needle outer wall section relative with first side is arranged to cave inward to be formed
First concave surface, the perforating needle outer wall section relative with second side are arranged to cave inward to form the second concave surface, make the first concave surface
Be connected respectively with first side and second side with the position of the close threading opening of the second concave surface, and outwardly convex formed it is round and smooth convex
Rise, when perforating needle punch, muscle that the pin that is perforated extrudes, sclerotin etc. are loosened in the first concave surface or the second concave surface, from
And the pressure of threading opening position is reduced, avoid muscle or sclerotin from entering threading groove under stress;Round and smooth projection is formed, can be made
Muscle or sclerotin can pass through when passing through threading opening, prevent from hooking.Further, by the outwardly peak of round and smooth projection
The cambered surface being set below where perforating needle outer wall, increase punching resistance can be avoided, and prevent borehole enlargement.
5. the perforating device of the present invention, in addition to position limiting structure, are specially provided with limited block on the second active section, limit
Position block has towards the end face of perforating needle, and the end face be concave circular arcs face, and is provided with slip-resistant texture, is additionally provided with limited block and the
The second relative through hole of one through hole, when needing punching, it is shaped as concave circular arcs face and has the limited block of slip-resistant texture can
Steadily it is placed on punch position, is not easy to rock, after perforating needle passes through sclerotin, is worn successively through the second through hole and first through hole
Go out, punch position is accurate, is not easy to accidentally injure blood vessel etc..
6. the perforating device of the present invention, the part of the direction installation groove bottom of the second active section, between installation groove bottom
With clearance space, and gap is installed between installation axle and installation through-hole, and this enables limited block using installation axle as the center of circle
Swing back and forth, enable adaptation to the different placed sides that gradient differs greatly, extend the scope of application.
7. the perforating device of the present invention, the position provided with the second connecting hole of the first tong arm, which is provided with, stops groove, the first pincers
The position provided with the first connecting hole of arm, which is located at, stops inside grooves, and relative with two the first relative blocking surfaces and two
The second blocking surface, when the first active section and the second active section close to mutual direction towards when turning to the first relative position,
First blocking surface with stop groove inwall contact stop, prevent too close to;When the first active section and the second active section towards
When direction away from each other turns to the second relative position, the second blocking surface prevented with stopping that the inwall of groove contacts stop
Say good-bye out, it is easy to use so as to ensure.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in prior art or the specific embodiment of the invention, below to existing skill
Accompanying drawing used in art or embodiment description is briefly described, it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of spinous process perforator in the prior art.
Fig. 2 is the overall structure diagram of perforating device in the embodiment of the present invention.
Fig. 3 is the structure enlargement diagram of part A in Fig. 2.
Fig. 4 is a kind of structure principle chart for improving and groove being threaded in embodiment.
Fig. 5 is the stereogram that limited block and the second active section coordinate installation.
Fig. 6 is the structure chart of the first shell fragment.
Fig. 7 is the structure chart of the second shell fragment.
Reference:01- tong arms, 02- pincers axles, the tong arms of 011- first, the tong arms of 012- second, the arc shaped pincers of 031- first are first,
The arc shaped pincers of 032- second are first, 04- perforating needles, 05- punching sets;The tong arms of 1- first, the lever pieces of 11- first, the active sections of 12- first,
The tong arms of 2- second, the lever pieces of 21- second, the active sections of 22- second, 3- perforating needles, 30- threading grooves, the concave surfaces of 301- first, 302-
Second concave surface, 31- first sides, 32- second sides, 33- bottom surfaces, 34- threading openings, the round and smooth projections of 35-, it is empty that 36- first holds line
Between, 37- second holds space of lines, the through holes of 4- second, 5- limited blocks, 51- end faces, 52- slip-resistant textures, 53- mounting grooves, 6- connections
Axle, 7- stop groove, the blocking surfaces of 81- first, the blocking surfaces of 82- second, the shell fragments of 91- first, the shell fragments of 92- second.
Embodiment
Technical scheme is described with reference to Figure of description, it is clear that following embodiments is not this
Invent whole embodiments.Based on embodiment described in the invention, those of ordinary skill in the art are not making other wounds
The every other embodiment obtained under the premise of the property made work, belongs to protection scope of the present invention.
It should be noted that in the description of the invention, term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implying relative importance.In addition, technology involved in invention described below different embodiments
As long as feature does not form conflict each other, can be combined with each other.
Embodiment
The present embodiment provides a kind of perforating device, as shown in Fig. 2 including:First tong arm 1, the second tong arm 2 and connection knot
Structure, wherein, attachment structure is used to that first tong arm 1 placed will to be intersected and second tong arm 2 is rotatably connected, and by institute
The first tong arm 1 is stated to divide for the first lever piece 11 and the first active section 12, by second tong arm 2 divide for first lever piece
11 the second relative lever pieces 21, and second active section 22 relative with first active section 12;Also include perforating needle 3, if
Put on first active section 12, there is threading hole or threading groove 30 for threading;And first through hole, it is arranged on institute
State on the second active section 22, it is relative with the perforating needle 3, the perforating needle 3 can be allowed to pass through.
The perforating device of the present embodiment, perforating needle 3 is provided with the threading groove 30 for threading, can be with before punching
First line or steel wire are pierced into threading groove 30, after punching, perforating needle 3 in the lump with mistake, completes line while punching
Threading, compared with traditional perforating device, do not have to not only find perforation again after punching, and threading is easy, and operating efficiency is high.
Above-mentioned threading groove 30 can also be arranged to threading hole, can also realize invention effect.
The perforating needle 3 is circular arc, and the perforating needle 3 has phase contact, the circular arc with first active section 12
The radius of shape, when first active section 12 rotates around the attachment structure, rotates with the phase contact around the attachment structure
The radius of gyration it is identical.This cause using the punched hole cross-sectional area of perforating needle 3 it is substantially suitable with the cross-sectional area of perforating needle 3,
It is small to patient trauma;In addition, the punched hole of perforating needle 3 is arcuate socket, the damage to marrow can not only be reduced around from marrow
Wound, moreover it is possible to provide more bone contact surfaces for steel wire, strengthen fixed effect.
As shown in figure 3, the threading groove 30 is arranged on inside the perforating needle 3, there is bottom surface 33, and along the punching
The first side 31 and second side 32 of the bearing of trend of pin 3 distribution, one end of the first side 31 and the second side 32
One end be connected respectively with the both ends of the bottom surface 33 to form two relative appearance space of lines, the first side 31 it is another
The other end of end and the second side 32 extends to the same side of the bottom surface 33, and close to each other, forms threading opening 34.This
Line is first worn to one by the perforating needle 3 of the present embodiment before punching and holds space of lines (such as first holds space of lines 36)
It is interior, pass through during punching, can also first be punched using perforating needle 3 in the lump, after punching, then line worn another to hold line empty
Between in (such as second hold space of lines 37), when perforating needle 3 is extracted out out of perforation, tape is gone out, so that the punching of the present embodiment
Pin using flexible, facilitates operation stitching.Threading opening 34 is formed on perforating needle outer wall, can allow to be directly placed into the middle part of line,
Threading efficiency can be improved.
As an improvement embodiment, as shown in figure 4, outside the perforating needle 3 relative with the first side 31
Wall part is bent to form the first concave surface 301 to the direction of bottom surface 33 depression, the punching relative with the second side 32
The outer wall section of pin 3 is bent to form the second concave surface 302, first concave surface 301 and described second to the direction of bottom surface 33 depression
The position of the close threading opening 34 of concave surface 302 is connected with the first side 31 and the second side 32 respectively, and to
Outer lug forms round and smooth raised 35.When perforating needle 3 punches, the muscle of the pin 3 that is perforated extruding, sclerotin etc. are in the first concave surface 301
Or second loosened at concave surface 302, so as to reduce the pressure of the position of threading opening 34, muscle or sclerotin is avoided to enter under stress
Thread groove 30;Round and smooth raised 35 are formed, is passed through when muscle or sclerotin can be enable to pass through threading opening 34, prevents from hooking.
Further, the cambered surface round and smooth raised 35 outwardly peak being set below where the outer wall of perforating needle 3, can be avoided
Increase punching resistance, and prevent borehole enlargement.
As a kind of preferred scheme, the round and smooth raised 35 outwardly peak is less than the outer wall institute of perforating needle 3
Cambered surface.
The perforating device of the present embodiment also includes spacing in target punch position for second active section 22 to be stablized
Position limiting structure.As shown in Figure 2 and Figure 5, the position limiting structure includes limited block 5, and the limited block 5 is installed by mounting structure
On second active section 22, have towards the end face 51 of the perforating needle 3, the end face 51 is concave circular arcs face, and is set
There is slip-resistant texture 52, and be additionally provided with relative with the first through hole on the limited block 5, and the perforating needle 3 can be allowed
The second through hole 4 passed through.When needing punching, it is shaped as concave circular arcs face and has the limited block 5 of slip-resistant texture 52 can be steady
Quietly it is placed on punch position, is not easy to rock, after perforating needle 3 passes through sclerotin, is passed successively through the second through hole and first through hole,
Punch position is accurate, is not easy to accidentally injure blood vessel.
The mounting structure includes the mounting groove 53 being located on the limited block 5, is provided inside the mounting groove 53
Second active section 22 on installation through-hole, and through both ends after the installation through-hole respectively with the mounting groove two
The installation axle that side wall is fixedly connected.
The part of the direction bottom surface of mounting groove 53 of second active section 22, has between the bottom surface of mounting groove 53
There is clearance space, and the installation axle is installed with the installation through-hole gap, to enable the limited block 5 with the peace
Dress axle swings back and forth for the center of circle.Have between the part towards the bottom surface of mounting groove 53 of second active section 22, with the bottom surface of mounting groove 53
There is clearance space, and gap is installed between installation axle and installation through-hole, and this enables limited block 5 to come by the center of circle of installation axle
Backswing is moved, and enables adaptation to the different placed sides that gradient differs greatly, extend the scope of application.
As shown in Fig. 2 the attachment structure includes the first connecting hole being located on first tong arm 1, it is located at described
The second connecting hole on second tong arm 2, and through being clamped described first after first connecting hole and second connecting hole
The connecting shaft 6 that arm 1 and second tong arm 2 are rotatably connected.
As shown in Fig. 2 the position provided with second connecting hole of second tong arm 2, which is provided with, stops groove 7, described the
The position provided with first connecting hole of one tong arm 1 hinders inside the stop groove 7, and with two relative first
Block face 81 and two the second relative blocking surfaces 82.
First active section 12 and second active section 22 turn towards close to mutual direction around the attachment structure
When moving to the first relative position, at least one first blocking surface 81 contacts stop with the inwall of the stop groove 7;It is described
It is relative that first active section 12 and second active section 22 away from mutual direction turn to second around the attachment structure
During position, at least one second blocking surface 82 contacts stop with the inwall of the stop groove 7.
When the first active section 12 and the second active section 22 turn to the first relative position towards close mutual direction, the
One blocking surface 81 with stop groove 7 inwall contact stop, prevent too close to;When the first active section 12 and the second active section 22
When turning to the second relative position away from mutual direction, the second blocking surface 82 contacts stop with the inwall of stop groove 7,
Prevent from too opening, it is easy to use so as to ensure.
In addition, strutted as shown in Fig. 2 being additionally provided with elasticity on the inwall of the lever piece 12 of the first lever piece 11 and second
Structure, the elastic expanding structure, which is included on the inwall of the second lever piece of direction 12 of the first lever piece 11, is provided with the first bullet
Piece 91, and the second shell fragment 92 is provided with the inwall of the first lever piece of direction 11 of the second lever piece 12, the first shell fragment 91 is freely
End end is provided with projection, and the free end end of the second shell fragment 92 is provided with groove, and the first shell fragment 91 connects with the free end of the second shell fragment 92
When, projection insertion inside grooves.First shell fragment 91 and the second shell fragment 92 are flexible, can be in first lever piece 11 and
Two lever pieces 12 put aside energy when being acted on close to each other by external force, when external force disappears, promote the first lever piece 11 and second
Lever piece 12 separates.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (7)
- A kind of 1. perforating device, it is characterised in that:Including:First tong arm (1);Second tong arm (2);Attachment structure, first tong arm (1) and second tong arm (2) for intersection to be placed are rotatably connected, and will First tong arm (1) is divided into the first lever piece (11) and the first active section (12), by second tong arm (2) be divided into it is described Relative the second lever piece (21) of first lever piece (11), and second active section relative with first active section (12) (22);Perforating needle (3), it is arranged on first active section (12), there is threading hole or threading groove (30) for threading;First through hole, it is arranged on second active section (22), the punching can be allowed with the perforating needle (3) relatively Pin (3) passes through;Elastic expanding structure is additionally provided between first lever piece (11) and the inwall of second lever piece (21);The perforating needle (3) is circular arc, and the perforating needle (3) has phase contact, the circle with first active section (12) The radius of arc with the phase contact when first active section (12) rotates around the attachment structure, around the attachment structure The radius of gyration of rotation is identical;The threading groove (30) is arranged on the perforating needle (3) inside, has bottom surface (33), and prolong along the perforating needle (3) Stretch the first side (31) and second side (32) of directional spreding, one end of the first side (31) and the second side (32) one end is connected with the both ends of the bottom surface (33) to form two relative appearance space of lines (36,37) respectively, and described The other end of one side (31) and the other end of the second side (32) extend to the same side of the bottom surface (33), and mutually It is close, form threading opening (34);The perforating needle (3) outer wall section relative with the first side (31) to the bottom surface (33) direction be recessed Curved It is square to the bottom surface (33) into the first concave surface (301), the perforating needle (3) outer wall section relative with the second side (32) The second concave surface (302) is bent to form to depression, and first concave surface (301) and second concave surface (302) are worn close to described The position of line mouth (34) is connected with the first side (31) and the second side (32) respectively, and outwardly convex formed it is round and smooth Raised (35).
- 2. perforating device according to claim 1, it is characterised in that:Round and smooth raised (35) outwardly peak Less than the cambered surface where the perforating needle (3) outer wall.
- 3. perforating device according to claim 1, it is characterised in that:Also include being used for second active section (22) surely Position limiting structure of the fixing limit in target punch position;The position limiting structure includes limited block (5), and the limited block (5) is arranged on second active section by mounting structure (22) on, there is the end face (51) towards the perforating needle (3), the end face (51) is concave circular arcs face, and is provided with anti-slip veins Manage (52), and be additionally provided with relative with the first through hole on the limited block (5), and the perforating needle (3) can be allowed to wear The second through hole (4) crossed.
- 4. perforating device according to claim 3, it is characterised in that:The mounting structure includes being located at the limited block (5) mounting groove (53) on, the installation through-hole being provided on internal second active section (22) of the mounting groove (53), And through the installation axle that both ends are fixedly connected with the two side of the mounting groove respectively after the installation through-hole.
- 5. perforating device according to claim 4, it is characterised in that:The direction installation of second active section (22) There is clearance space, and the installation axle and the peace between the part of groove (53) bottom surface, with the mounting groove (53) bottom surface Via clearance installation is filled, to cause the limited block (5) to be swung back and forth using the installation axle as the center of circle.
- 6. perforating device according to claim 1, it is characterised in that:The attachment structure includes being located at first pincers The first connecting hole on arm (1), the second connecting hole being located on second tong arm (2), and through first connecting hole With the connecting shaft (6) that first tong arm (1) and second tong arm (2) are rotatably connected after second connecting hole.
- 7. perforating device according to claim 6, it is characterised in that:Second tong arm (2) is provided with the described second company The position for connecing hole is provided with stop groove (7), and the position provided with first connecting hole of first tong arm (1) is located at the resistance It is internal to keep off groove (7), and there are two relative the first blocking surfaces (81) and two relative the second blocking surfaces (82);First active section (12) and second active section (22) turn towards close to mutual direction around the attachment structure When moving to the first relative position, at least one first blocking surface (81) contacts stop with the inwall of the stop groove (7);First active section (12) and second active section (22) turn away from mutual direction around the attachment structure When moving to the second relative position, at least one second blocking surface (82) contacts stop with the inwall of the stop groove (7).
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CN201510973246.1A CN105581820B (en) | 2015-12-22 | 2015-12-22 | A kind of perforating device |
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CN201510973246.1A CN105581820B (en) | 2015-12-22 | 2015-12-22 | A kind of perforating device |
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CN105581820A CN105581820A (en) | 2016-05-18 |
CN105581820B true CN105581820B (en) | 2017-12-19 |
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CN201510973246.1A Expired - Fee Related CN105581820B (en) | 2015-12-22 | 2015-12-22 | A kind of perforating device |
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CN104173087A (en) * | 2014-09-10 | 2014-12-03 | 王运菊 | Double-tip and multi-hole medical needle needless of thread penetrating |
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CN2341573Y (en) * | 1998-10-12 | 1999-10-06 | 岳长路 | Novel suture needle |
CN201642301U (en) * | 2010-04-02 | 2010-11-24 | 吴伟敏 | Special straight tongs for a rib plate |
CN201642302U (en) * | 2010-04-02 | 2010-11-24 | 吴伟敏 | Special gun-type pincers for rib bone fracture plate |
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CN105581820A (en) | 2016-05-18 |
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